Reinforced polymer composites with wood fibers grafted with sila

Details Reinforced polymer composites with wood fibers grafted with sila Reinforced polymer composites with wood fibers grafted with sila

1985-05-29

1988-01-05

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523212, 523213, 524 13, 524 35, 524583, 524586, C08K 906

Patent

active

047177420

ABSTRACT:
Silanes grafted onto celluloses and lignocelluloses' fibers, in presence of free radical initiator, reinforced thermoplastic composites, which replace the inorganic fillers. Polyethylene composites are prepared by a hot melt mixing process, wherein the cellulosic molecules graft with silanes, and part of the thermoplastic polymer, can be initiated to attach with the maleic anhydride present. The grafted cellulose molecules with aminosilanes combine easily and strongly with that maleiated polymer to give the superior composite properties. The silanes grafted onto organic fillers proved to be higher in energy, secant modulus, tensile strength and strain compared to inorganic fillers such as glass fibers or mica composites. Noting that the cost of silanes grafted onto cellulosic or lignocellulosic fibers are several times lower than that of treated glass fibers or mica.

REFERENCES:
patent: 4317765 (1982-03-01), Gaylord
patent: 4327001 (1982-04-01), West et al.
patent: 4338228 (1982-07-01), Inoue et al.
patent: 4349605 (1982-09-01), Biggs et al.
patent: 4395496 (1983-07-01), Wittmann et al.
patent: 4409345 (1983-10-01), Moteki et al.
patent: 4442243 (1984-04-01), Woodhams

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