Compolymer of styrene and silane coupling agent and synthesizing

Details Compolymer of styrene and silane coupling agent and synthesizing Compolymer of styrene and silane coupling agent and synthesizing

1995-04-17

1996-06-11

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2502

Patent

active

055256775

ABSTRACT:
Novel agents for improving adhesion performance between fibers and resins in fiber reinforced polystyrene composites and synthesizing method thereof and method for improving adhesion performance in fiber reinforced polystyrene composites by using the copolymers are disclosed.
The agents are copolymers of styrene and silane coupling agents, and the copolymers can be manufactured by copolymerizing styrene monomer and silane coupling agents in benzene solvent at nitrogen atmosphere by employing azobisisobutyronitrile (AIBN) and the like as an initiator after purifying the reactants and eliminating polymerization inhibitor from the reactants.
The typical copolymer is poly(styrene-co-.gamma.-MPS)(.gamma.-MPS means .gamma.-methacryloxypropyltrimethoxysilane) which is manufactured by copolymerizing styrene monomer and .gamma.-MPS.
Adhesion performance of the polystyrene fiber composites is improved by hydrolyzing the copolymer in the presence of solvent and applying the copolymer to the surface of the fibers for reinforcing and then immersing the fibers into polystyrene resin composition after drying.
Fiberglass materials are most preferably employed as fibers for reinforcing.
Adhesion performance between the fibers and matrix resin is substantially improved, resulting in enhanced the strength and endurance of the composite.

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Horak, Z. "Modification of the Strength Characteristics" in Styrene-Based Plastics and their Modification, Ellis Horwood Series in Polymer Science and Technology, pp. 320-332.

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