Amino MQ Silicone Resin CAS 67763‑19‑3 is amino‑grafted M‑Q structured silicone resin obtained by co‑hydrolysis and polycondensation of amino‑containing silane, methyl silane and tetrafunctional silicate monomers. Reactive amino side groups are distributed on the three‑dimensional siloxane framework. The amino value can be adjusted during synthesis. It is utilized for fiber surface treatment coating and polymer modification, enhancing surface softness, anti‑abrasion property and interfacial comp

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Amino MQ Silicone Resin CAS 67763‑19‑3, Amino‑Functional MQ Resin for Fiber Treatment Coating & Polymer Modification

This amino‑functional MQ silicone resin is produced via controlled co‑hydrolysis and polycondensation of amino‑functional alkoxysilane, methyl alkoxysilane and tetraalkoxysilane starting materials. The molecular framework is built from monofunctional M‑units and tetrafunctional Q‑units. Amino groups are covalently grafted as side chains onto the rigid three‑dimensional siloxane network. The amino content is tunable by adjusting monomer feed ratios during manufacturing to satisfy different requirements of fiber finishing and polymer modification.

Compared with conventional non‑functional MQ silicone resin, pendant amino groups bring strong polar interaction capacity. Amino sites can form hydrogen‑bonds with hydroxyl, carboxyl groups on fiber surfaces. In thermoset polymer systems, amino groups are capable of chemical reaction with epoxy groups, anhydride and isocyanate functional moieties, creating covalent bonding between silicone MQ segments and organic polymer phases. This feature effectively alleviates interfacial incompatibility between silicone and organic resin.

For textile fiber treatment and finishing coating, the resin adsorbs firmly onto synthetic fiber, cotton and blended fiber surfaces. It imparts smoothness and soft hand‑feel to the fiber, enhances anti‑abrasion performance during weaving and processing, reduces fiber static accumulation. Meanwhile, the rigid MQ silicone skeleton improves the thermal resistance of fiber finishing layer and restricts migration loss of softening components under repeated washing.

In polymer modification applications, amino MQ silicone resin can be blended into epoxy, polyurethane and phenolic thermosetting systems. During curing, amino groups participate in cross‑linking reactions. The embedded silicone MQ domains lower curing internal stress, boost thermal‑shock resistance and improve surface slip property of cured polymer parts.

This resin exhibits good solubility in aromatic solvents, alcohol‑ether mixed solvents and certain silicone fluids. Formulation pH needs careful control. Strong acidic conditions will protonate amino groups and weaken its reactivity and adsorption capacity; strong alkaline environment may trigger siloxane backbone cleavage, resulting in degradation of the silicone resin.

During processing for fiber finishing, the resin can be formulated into solvent‑based or water‑dilutable finishing bath. Sufficient stirring is required to guarantee uniform distribution before padding or spraying onto textile substrates. For thermoset polymer compounding, avoid excessive high‑temperature shearing which may cause premature cross‑linking and gel particle formation.

The product must be hermetically sealed and stored under cool and dry conditions. Isolate from acidic substances, epoxy hardeners and isocyanate raw materials during warehouse storage and material handling. Prevent cross‑contamination with acidic impurities to avoid undesired pre‑reaction and viscosity rising. This amino‑functional MQ silicone resin is a dedicated modifying raw material for fiber treatment coating and thermosetting polymer modification.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.