Abstract
3-Methacryloxypropyltriethoxysilane (CAS No. 21142-29-0), Silane coupling agent SCA-R74E, is a versatile methacryloxy functional silane coupling agents used to improve the physical and electrical properties of glass reinforced and mineral filled thermoset resin, typically those curing via a free-radical mechanism (e. G. Polyester, polyurethanes and acrylics) and in filled or reinforced thermoplastic polymers, including polyolefins and thermoplastic polyurethanes.
Identification
Name: 3-Methacryloxypropyltriethoxysilane
Synonyms: 3-Triethoxysilyl-propyl-methacrylate
Molecular Formula: C13H26O5Si
Molecular Weight: 248.35
CAS Registry Number: 21142-29-0
EINECS: 244-239-0
Equivalents
Y9936
Z-6036
KBE-503
Properties
Density: 0.985
Boiling point: 130 C degree
Refractive index: 1.427
Water solubility: REACTS
Application
3-Methacryloxypropyltrimethoxysilane (CAS No. 21142-29-0), Silane coupling agent SCA-R74E, is an important additive for many applications. Examples are:
1\Significantly improves composite strengths when the composite is reinforced with fiber glass roving sized with a typical polyester compatible formulation. These formulations normally incorporate silane coupling agents, film-forming resins, lubricants and antistatic agents.
2\Enhances the strength performance both initially and after wet-conditioning, of cured polyester resin composites filled with silica, glass fiber, silicates and many metal oxides.
3\Enhances the wet electrical properties of many mineral-filled composites, such as crosslinked polyethylene and polyvinyl chloride.
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