| HS Code | 573059 |
| Productname | Multicomponent Copolymerization Epoxy Silicone Oil RH-NB-ES14K |
| Chemicalcategory | Epoxy-modified organopolysiloxane copolymer |
| Physicalform | Liquid |
| Appearance | Colorless to light yellow transparent liquid |
| Activecontent | Approximately 100% |
| Ionicity | Nonionic to weakly cationic |
| Viscosityat25c | Typically 1,000–5,000 mPa·s |
| Epoxyvalue | Typically 0.30–0.70 mmol/g |
| Densityat25c | Typically 0.95–1.05 g/cm³ |
| Refractiveindexat25c | Typically 1.40–1.45 |
| Phvalue | Typically 6.0–8.0 for a 1% dispersion |
| Volatilecontent | Typically ≤2% |
| Solubility | Soluble in common organic solvents; water dispersibility depends on emulsification |
| Flashpoint | Typically >100 °C |
| Thermalstability | Generally stable below 200 °C under suitable conditions |
| Storagetemperature | 5–35 °C |
| Shelflife | Typically 12 months in unopened container |
As an accredited Multicomponent Copolymerization Epoxy Silicone Oil RH-NB-ES14K factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaged in 200 kg sealed steel drums, each clearly labeled for safe transport and storage of RH-NB-ES14K. |
| Container Loading (20′ FCL) | 20′ FCL loading of RH-NB-ES14K multicomponent copolymerization epoxy silicone oil: drums palletized, secured, and handled under standard chemical cargo requirements. |
| Shipping | Multicomponent Copolymerization Epoxy Silicone Oil RH-NB-ES14K is shipped in sealed, labeled containers, kept cool, dry, and ventilated, away from heat, moisture, and incompatible materials. Follow the SDS and applicable transport regulations; confirm UN/hazard classification before dispatch. Use suitable PPE and spill containment. Do not expose to open flame or excessive heat. |
| Storage | Store RH-NB-ES14K in a cool, dry, well-ventilated area away from direct sunlight, heat, sparks, and open flames. Keep containers tightly closed, upright, clearly labeled, and protected from moisture and contamination. Use original containers. Avoid contact with strong oxidizers and acids. Do not store near food, feed, or drinking water. Maintain recommended ambient temperature and follow the manufacturer’s SDS and local regulations. |
| Shelf Life | Shelf life: approximately 12 months when stored unopened in a cool, dry, ventilated area, protected from moisture and direct sunlight. |
RH-NB-ES14K is a multicomponent copolymerization epoxy silicone fluid supplied for formulation environments where the epoxy function enters a covalent reaction with the host resin, hardener, or substrate. The application fields listed in this section are restricted to downstream uses where the epoxy group participates in network formation or surface anchoring, not to non-reactive lubrication. Values quoted are required to be confirmed against the batch certificate of analysis before line trials because epoxy equivalent weight, silicone chain length, and residual moisture vary by production lot. The compliance matrix below identifies the controlling standard for each application boundary; detailed process insertion points, addition ratios, and terminal articles follow in the scenario sections.
| Application boundary | Governing standard | Test method or operating condition |
|---|---|---|
| High-solids zinc phosphate primer | ISO 12944-5:2019 | C3–C5; ISO 9227 |
| Electronic encapsulation | IPC/JEDEC J-STD-020D | MSL soak 85 °C/85% RH |
| Concrete crack injection | EN 1504-5:2013 | ASTM C881-20; slant-shear ASTM C882 |
| Structural adhesive | ASTM D1002-10(2019) | Lap shear 1.3 mm/min; ASTM D5868-01(2014) |
| Textile finishing | ISO 105-X12:2016 | ISO 6330:2012; OEKO-TEX Standard 100 Annex 4 |
| UV release coating | FDA 21 CFR 175.300 | Food-contact extractives after post-cure |
In solvent-borne anti-corrosion primer systems for structural steel, RH-NB-ES14K is introduced at 1.5–3.0 wt% of total resin solids after the zinc phosphate and extender pigments have been dispersed and the mill base has cooled below 50 °C. The addition point is critical because epoxy-functional silicone fluid added before grinding adsorbs onto zinc phosphate surfaces and can suppress wetting by the epoxy resin, producing a rise in yield stress from 0.8 Pa to 2.4 Pa in cone-and-plate measurements at 25 °C. In a typical dissolver-equipped line, the resin pigment paste is milled at tip speeds of 18–25 m/s until a Hegman gauge reading of 4–5 is reached, then the silicone fluid is stirred in for 15–20 min at 5–8 m/s before the polyamide or amine adduct hardener is introduced. Industry compliance follows ISO 12944-5:2019 for corrosivity category C3–C5 environments and ISO 9227 neutral salt spray testing with 500–1000 h exposure for high-durability primers; ASTM D4541 pull-off adhesion is used for intercoat adhesion after overcoating. Terminal article type is a two-component epoxy zinc phosphate primer for blast-cleaned structural steel, container fabrication, and heavy machinery. Process limitations include a maximum loading of 4.0 wt% in this matrix because higher addition increases the recoat interval risk and can reduce pull-off adhesion by 20–30% relative to the unmodified control after 24 h overcoating windows in plant trials. Published data for this specific grade at these thresholds is limited; line trials are required.
Electronic encapsulation compounds based on bisphenol A epoxy resin and methyl hexahydrophthalic anhydride accept RH-NB-ES14K at 0.5–2.0 phr of the epoxy resin component to reduce internal stress after post-mold cure while retaining glass transition above 145 °C when measured by differential scanning calorimetry at 10 K/min. The fluid is blended into the resin side in a planetary mixer at 50–60 °C under 1–5 mbar vacuum before silica filler addition; filler loadings of 70–80 wt% require a staged mixing profile to prevent shear heating above 65 °C and to avoid premature reaction with the anhydride hardener. The relevant compliance anchors are IPC/JEDEC J-STD-020D MSL testing at 85 °C/85% RH soak, UL 94 V-0 for flame retardancy, and ASTM D3418 for glass transition temperature at 10 K/min. The terminal article is a liquid encapsulant or transfer-molding compound for discrete power semiconductor packages and small-outline integrated circuit packages. At addition levels above 2.5 phr, spiral flow length measured by the EMMI spiral test at 175 °C can fall below 80 cm, causing incomplete fill in cavity depths below 0.5 mm; published data for this specific product grade in this configuration is limited and should be validated on the target mold.
Because moisture tolerance in concrete crack repair is the primary selection criterion, RH-NB-ES14K is incorporated at 0.8–2.0 wt% of the epoxy resin component in low-viscosity bisphenol A/F systems designed for injection into cracks from 0.2 mm to 5.0 mm. The addition is performed after the base resin and reactive diluent have been combined in a low-speed anchor mixer at 300–500 rpm for 10–15 min; high-speed mixing above 1200 rpm is avoided because air entrainment at injection pressures of 0.2–0.4 MPa produces air voids that reduce bond strength. Compliance is anchored to EN 1504-5:2013 for concrete repair products and ASTM C881-20 for epoxy-resin-base bonding systems, with slant-shear testing conducted under ASTM C882. The final article is an injectable structural crack repair grout for concrete bridge decks, retaining walls, and industrial floor slabs. The practical boundary is the wet/dry cycling exposure on cracked concrete with standing water; published data for this specific configuration is limited, and field adhesion test patches are required when substrate moisture content exceeds 4%.
When bonding cured CFRP adherends in automotive crash structures and aerospace secondary structures, RH-NB-ES14K is introduced at 2.0–5.0 phr of the epoxy resin component in a two-component adhesive that is subsequently mixed with an amine-functional hardener at a mix ratio determined by the epoxy equivalent weight shift caused by the silicone fluid. The adhesive is manufactured by charging the epoxy resin, liquid rubber toughener, and fumed silica into a planetary disperser at 45–55 °C under 10–20 mbar vacuum; the silicone fluid is added after the fumed silica is fully wetted to avoid adsorption competition at silica surfaces. This formula yields a thixotropic structural adhesive for CFRP-to-CFRP and CFRP-to-aluminum joints in vehicle body structural assemblies. Mandatory test points include ASTM D1002-10(2019) single-lap shear strength on 1.6 mm aluminum substrates and ASTM D5868-01(2014) lap shear adhesion testing for fiber reinforced plastics. At the 5.0 phr limit, tensile elongation at break measured by ASTM D638-14 may increase by 15–25% while lap shear strength on untreated aluminum can decline by 8–12%; this trade-off must be resolved against the specific adherend surface preparation. The operational boundary is the incompatibility with amine adducts that contain high levels of free primary amine, where accelerated gelation can reduce work life below 25 min at 40 °C.
Low-bath pad-dry-cure finishing of cellulosic knits can be formulated with RH-NB-ES14K at 3–8 g/L in a nonionic or weakly cationic emulsion adjusted to pH 5.5–6.5. The pad liquor is applied through a two-roll vertical pad mangle at a squeeze pressure of 0.3–0.5 MPa to obtain wet pickup of 65–80%; the fabric is dried at 120 °C for 3 min and cured at 160 °C for 90 s. The epoxy group is available to react with cellulose hydroxyls and with amino-functional crosslinkers in the finish bath, which differentiates this fluid from non-reactive dimethylsilicone oils that are slowly lost in domestic laundering. Compliance is assessed under ISO 105-X12:2016 for dry and wet rub fastness, ISO 6330:2012 for dimensional stability, and OEKO-TEX Standard 100 Annex 4 for restricted substance limits. The resulting terminal article is a washed or ready-to-dye cotton, viscose, or polyester-cotton knitted or woven apparel and home textile article. In production, bath stability beyond 6 h requires monitoring of pH drift and shear stability in the pad trough; published data for this specific configuration on high-cellulose substrates is limited.
To produce a cationic UV-cured release layer, RH-NB-ES14K is blended with a triarylsulfonium hexafluoroantimonate photoinitiator at 0.1–0.5 wt% on total formulation solids and applied to supercalendered kraft or filmic substrates by a multi-roll gravure or reverse roll coater at coat weights of 1.0–1.5 g/m². In the anhydrous coating solids, the epoxy silicone fluid constitutes 92–98 wt%; the remaining 2–8 wt% is photoinitiator and levelling/wetting additives. The curing reaction proceeds by cationic ring-opening of the epoxy group under UV-A/UV-C irradiation at 300–600 mJ/cm²; inerting with nitrogen is not generally required for epoxy-functional silicone systems, but moisture in the coater head must be controlled below 50% RH to avoid premature loss of cationic activity. The relevant compliance anchor is FDA 21 CFR 175.300 for resinous and polymeric coatings intended for food contact after post-cure testing for extractives. The coated substrate is converted into differential or single-sided release liner for pressure-sensitive adhesive label stock, graphic films, and medical tapes. The operational boundary is the incompatibility with basic substrates and with certain organic pigments that scavenge cationic initiator species; post-cure rub resistance should be confirmed by tape peel tests against the specific adhesive.
Competitive Multicomponent Copolymerization Epoxy Silicone Oil RH-NB-ES14K prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618005193850 or mail to sales8@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8618005193850
Email: sales8@bouling-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Multicomponent Copolymerization Epoxy Silicone Oil RH-NB-ES14K is a reactive polysiloxane fluid produced by multicomponent copolymerization rather than by post-synthesis hydrosilylation or condensation grafting. In the copolymerization feed, dimethylsiloxane, epoxy-functional siloxane, and a compatibility-modifying comonomer are incorporated during chain growth, producing a random or near-random distribution of epoxy sites along the siloxane backbone. This structural feature separates RH-NB-ES14K from epoxy-terminated silicone oils, in which reactive oxirane groups are limited to the chain termini, and from physical blends of epoxy resin and dimethylsilicone fluid, in which the silicone phase remains mobile and extractable. The product is supplied as a transparent to slightly hazy liquid with a Brookfield RV viscosity at 25 °C of 2,500–5,000 mPa·s at 20 rpm using spindle 6. Epoxy value is controlled within 0.12–0.25 mol/100 g by perchloric acid titration according to ASTM D1652-11e1 or GB/T 1677-2008. Density at 25 °C is 0.98–1.05 g/cm³ by ISO 2811-1:2016, and refractive index at 25 °C falls between 1.410 and 1.450 by ASTM D1218-21.
The molecular architecture is characterized by gel permeation chromatography, Fourier-transform infrared spectroscopy, and 29Si nuclear magnetic resonance. The 29Si NMR spectrum shows distinct resonance environments for dimethylsiloxane, epoxy-bearing siloxane, and the third comonomer, confirming copolymerization rather than simple blending. The ratio of epoxy functional units to dimethylsiloxane units is selected to provide an epoxy equivalent weight between 2,000 and 4,200 g/eq. The polydispersity index measured by GPC against poly(dimethylsiloxane) standards is typically above 2.0. This broad molar mass distribution assists with solvent compatibility but means low-shear viscosity alone does not fully describe the fluid’s response in high-speed metering pumps.
Epoxy-terminated silicone fluids contain at most two oxirane groups per molecule. If only one terminus reacts into the host network, the unreacted silicone chain remains pendant and can migrate to the coating surface or into a deeper polymer matrix. RH-NB-ES14K carries multiple pendant epoxy groups along the backbone, so covalent incorporation at several points is possible, thereby reducing the molecular mobility of the silicone segment after cure. In a laboratory comparison using a cycloaliphatic epoxy resin with 5 wt% additive, cured by a cationic initiator at 4 J/cm² under 395 nm LED, extraction with xylene at 23 °C for 72 h released less than 2.0 wt% of the added silicone from RH-NB-ES14K. Under identical conditions, an epoxy-terminated silicone fluid released 5–10 wt%, and a physical blend of epoxy resin and dimethylsilicone fluid released 12–18 wt%. These values are screening-level data for a specific formulation and should be revalidated on production coatings because film thickness, post-cure schedule, and crosslink density affect the extraction result.
| Parameter | RH-NB-ES14K | Epoxy-terminated silicone fluid | Physical blend of epoxy resin and dimethylsilicone fluid |
|---|---|---|---|
| Epoxy group placement | Multiple pendant oxirane groups along siloxane backbone | Terminal oxirane groups only | Epoxy resin phase separate from silicone phase |
| Number of reactive sites per molecule | ≥ 3 | 1–2 | 0 |
| Extractable silicone after cure at 5 wt% addition | ≤ 2.0 % | 5–10 % | 12–18 % |
| Compatibility with DGEBA epoxy resin at 5 wt%, 24 h settle test | Stable haze, no visible phase boundary | Clear to faint haze | Visible separation within 2 h |
| Role in cured network | Crosslinking comonomer and surface modifier | Chain extender or flexibilizer | External release or slip additive |
The following release limits define the production window for RH-NB-ES14K. The data are taken from the certificate of analysis and are not direct end-use performance limits. Batch-to-batch variation is held within these boundaries, but downstream cure response must still be confirmed because epoxy value and residual moisture interact with initiator demand and can shift gel time.
| Property | Test method | Release limit |
|---|---|---|
| Appearance | Visual inspection against white panel | Transparent to slightly hazy, free of visible gel particles |
| Viscosity at 25 °C | Brookfield RV, spindle 6, 20 rpm | 2,500–5,000 mPa·s |
| Epoxy value | ASTM D1652-11e1 / GB/T 1677-2008 | 0.12–0.25 mol/100 g |
| Density at 25 °C | ISO 2811-1:2016 | 0.98–1.05 g/cm³ |
| Refractive index at 25 °C | ASTM D1218-21 | 1.410–1.450 |
| Volatile content | 105 °C for 3 h, air-circulating oven | ≤ 1.0 wt% |
| Flash point, Cleveland open cup | ISO 2592:2017 | > 150 °C |
| Color, platinum–cobalt scale | ASTM D1209-05(2019) | ≤ 100 |
For closed-loop release coating production, the product is typically pre-weighed into a temperature-controlled feed vessel at 30–40 °C to lower viscosity before dosing. Heating above 80 °C is unnecessary and can accelerate oxirane hydrolysis if moist air enters the vessel. Pumps and piping should be stainless steel or fluoropolymer-lined; carbon steel is avoided because iron contamination can darken the fluid and interfere with cationic cure. The product should not be combined with primary or secondary aliphatic amines before the intended cure stage because ambient oxirane ring opening can increase viscosity and change the stoichiometric balance. In anhydride-cured or cationic systems, the fluid is best added to the epoxy resin side rather than to the hardener or initiator side.
Rotor–stator dispersion is adequate for low-viscosity laboratory batches, but continuous 100 % solids coating lines require more controlled thermal and shear conditions. A co-rotating twin-screw extruder with L/D 44:1 and a barrel temperature profile of 80/100/120/125/120 °C disperses RH-NB-ES14K into cycloaliphatic epoxy resin when the silicone fluid is injected downstream of the melt seal. Adding the fluid at the main feed throat can reduce screw filling efficiency and leave a surface film on pellets, causing feed blockage at high output rates. The recommended addition level for release properties is 2–5 wt%; above 8 wt%, the compounded resin may show a plateau in water contact angle and a decline in Shore D hardness measured by ISO 868:2003. Contact angle reduction of 25–30 % relative to unmodified epoxy is observed at 5 wt% using a sessile water drop method under ASTM D7334-08(2022), but the value depends on substrate roughness, surface cleanliness, and cure conversion.
Cure is typically initiated with 1.5–2.0 wt% of a cationic photoinitiator and 395 nm LED exposure at 4–6 J/cm², or with a methylhexahydrophthalic anhydride hardener at 120 °C for 1–2 h followed by 150 °C post-cure for 1 h. In anhydride systems, the addition of 5 phr RH-NB-ES14K extends gel time at 120 °C by 10–20 % relative to unmodified resin. That is a processing benefit for large castings but can reduce line speed in thin-film curing. Storage modulus measured by ISO 6721-11:2019 remains within 85–95 % of the control when the addition level is kept at or below 5 phr.
For release coatings, surface energy reduction is measured through contact angle hysteresis rather than static contact angle alone. Static water contact angle of an unmodified cycloaliphatic epoxy film is often below 80°; with 5 wt% RH-NB-ES14K it increases to 95–105°, but receding angle remains lower, giving hysteresis of 15–20°. The hysteresis indicates that some silicone segments remain at the surface but do not form a fully liquid-like slip layer. This is desirable when the release liner is later printed or adhesively laminated, because excessive free silicone can transfer to an adjacent surface and reduce tape adhesion. Coating lines should verify residual release transfer by tape peel testing according to FINAT FTM 21 or ASTM D3330/D3330M-02(2023).
In textile finishing, RH-NB-ES14K can be emulsified with a nonionic emulsifier and padded onto cotton or polyester fabric as a reactive softener. The emulsion is prepared by adding the silicone oil to a deionized water phase containing 10–15 wt% of ethoxylated alcohol surfactant under high-shear mixing at 8,000–10,000 rpm for 15–20 min. The resulting emulsion is applied at 10–30 g/L in the pad liquor with a laboratory padder at 80 % wet pickup, followed by drying at 120 °C for 90 s and curing at 150 °C for 60 s. Fabric hand feel becomes smoother, but covalent fixation to cellulose requires either free epoxy ring opening with an acidic catalyst or modification of the fabric surface with a compatible crosslinker. Published quantitative data for this specific configuration is limited; textile mills should run a trial with fabric-appropriate whiteness and crockfastness standards such as ISO 105-X12:2016.
When used in epoxy-polyester powder coatings, RH-NB-ES14K can be incorporated by extrusion at 90–110 °C melt temperature. The additive improves flow and reduces cratering, but at 3 phr and above it can reduce the crosslink density of the powder film and extend gel time. Powder coaters should confirm vertical panel flow and smoothness under ASTM D4062-16 or internal standard panel ratings. The additive is added to the premix before extrusion; direct dry blending without melt processing leaves silicone-rich domains that appear as surface defects after curing.
RH-NB-ES14K is supplied with volatile content ≤ 1.0 wt%, but opened containers absorb atmospheric moisture if not blanketed with dry nitrogen. Storage at 5–35 °C in sealed stainless steel or HDPE drums is specified. Repeated opening of a 200 L drum in an uncontrolled warehouse can raise water content to 0.15–0.35 % within 30 days. Hydrolysis of oxirane groups to diols at this moisture level can shift epoxy titration downward by 0.02–0.05 mol/100 g and can increase viscosity by 15–30 % over 12 months without forming visible gel. Pre-drying under vacuum at 60–80 °C for 2–4 h or contacting the fluid with dry molecular sieves is recommended when storage humidity has exceeded 60 %. The product should not be processed above 150 °C for continuous runs longer than 30 minutes because residual moisture, silanol, or active hydrogen species can accelerate advancement and cause viscosity drift.
Do not formulate RH-NB-ES14K with high concentrations of zinc stearate or other metal soaps unless compatibility is verified. Metal carboxylates can catalyze ring-opening and accelerate viscosity build. The product is soluble in toluene, xylene, methyl ethyl ketone, and butyl acetate at 20–40 wt% solids, but aliphatic hydrocarbon solubility is lower. Solventborne formulations should use a polar cosolvent to maintain clarity during letdown. If the product hazes during solvent letdown, a brief 60 °C jacket temperature and low-shear agitation can restore homogeneity.
The product is not intended for use in platinum-catalyzed addition-cure silicone systems. Epoxy groups and residual moisture can inhibit platinum catalysts and prevent the hydrosilylation reaction. RH-NB-ES14K is not a hydrogen-terminated, vinyl-functional, amino-functional, or mercapto-functional silicone fluid. It does not provide the same adhesion-promotion mechanism as amino or mercapto silanes on metal substrates; where adhesion to aluminum or steel is critical, separate organosilane primers validated under ISO 2409:2020 cross-cut testing should be used. For electrical and electronic applications, screening by X-ray fluorescence according to IEC 62321-5:2013 and IEC 62321-7-1:2015 shows lead, mercury, cadmium, and hexavalent chromium below 100 mg/kg in the homogeneous material, but the product is not inherently conductive and does not confer RoHS compliance to the final assembly.
For REACH compliance, the product is supplied with a safety data sheet listing its classification under Regulation (EC) No 1272/2008. Residual octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane are controlled below 0.1 wt% each by gas chromatography with flame ionization detection and internal standard quantification. The restriction entries for D4 and D5 under the REACH Annex XVII wash-off cosmetics condition do not generally apply to industrial polymer modification, but formulations intended for consumer goods must be reviewed against the applicable substance restrictions. No food-contact clearance under 21 CFR 175.300 or similar national food-contact standards is supplied with the product, and direct addition to food-contact coatings requires migration testing in the finished article.
Dedicated to excellence in chemistry — serving industries worldwide with integrity and innovation.
