SU1027179A1 - Vulcanizable rubber stock based on chlorosulfanated polyethylene - Google Patents

Description

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The invention relates to compositions of rubber compounds based on valuable valuable elastomers, specifically based on chlorosulphonated polyethylene (HSPE), and can be used in practice for the production of resins that have high strength and resistance to various chemical agents.

 vulcanizable rubber compound containing mac.h .: HSPEg100; rosin 10, tsosuglerod DG-100, O; lead oxide A); mercaptobenzbthiazole 3.0

However, the westnd rubber mixture is also characterized by high Nuni viscosity and is difficult to process.

It is known that for some rubbers a modifier dith is used. yetacrylate-bis (and oxybenzyl) -car- i; boran | DOC) .;

However, in with "| es x based on HSPd

this component is not enough affect

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Closest to the proposed technical essence and the achieved result is a vulcanizable ezine mixture based on chlorine sulfonated polyethylene, inclusive oligoether acrylate 3j. . The disadvantage of the resulting vulnidate is not high enough elongation and endurance during repeated bending.

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The chain of the invention is an increase in the relative elongation and endurance during repeated bending of the vulcanizate from this mixture.

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This goal is achieved by the fact that a vulcanized rubber mixture based on chlorosulfonated polyethylene, including oligon ether 10 (-OdA), additionally contains dimethacrylate (p-oxybenaip) -carborane (DOCUM and (-oximethyl-i-dazol in the following ratio of components, May. : 15 Chlorosulfonated

polyethylene 1QO Oligoether acrylate 10-30 4-Omeimetilimida. ash, 0.5-1.2 20 Dimethacrylatebis (p-hydroxybenzyl) carboran 5-10

Primer p. Rubber mixture composition, mac.:HSPE 100, rosin 25 10; technical carbon DG-100 “O; okio lead lead AO; mercaptobenzothiazole 3; made on rollers at 30-4 ° C. The curing time of the mixtures before vulcanization l 12 hours. The vulcanization of Q plates with a thickness of 2 mm is carried out in a press at 1 ° C for 20 mI.

The properties of the obtained mixtures and their vulcanizates are given in the table.

Indicators characteristic of the known, proposed formulations (minimum, average and maximum dosages), as well as for a number of mixtures, of the control composition are given, indicating that only the introduction of new components is effective.

The data show that compared with the vulcanization prototype of the proposed composition, they have large relative elongation and endurance with repeated fatigue (izibe.

This testifies to an increase in the service life of products, saving materials and labor.

Claims (1)

(54 VULCANIZABLE RUBBER MIXTURE BASED ON CHLOROSULPHED POLYETHYLENE, including oligoester acrylate; the following ratio of components, parts by weight: Chlorosulfonated Polyethylene one hundred Oligoester acrylate Dimethacrylate bis- (p-hydroxybenzyl) - yoo -carboran 5th 4-0 hydroxymethylimidazole θ.5-1.2 _s SU, „1027179