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Leadless non-nickel epichlorohydrin rubber sizing material

A technology of chloroether rubber and rubber compound, which is applied in the field of rubber, can solve the problems of discouraged use, no chemical name and chemical composition, etc., and achieve good anti-aging performance, good mechanical properties, and good ozone resistance.

Inactive Publication Date: 2012-10-17
TIELIN ERFAN RUBBER R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ETU is not banned, but its use is discouraged
[0005] For the above shortcomings, Germany No. 1 Rubber Co., Ltd. proposed a lead-free and ethylthiourea vulcanization system "special compound" (World Rubber Industry, 2007, 34(1): 4-10), but there is no specific chemical name and chemical composition

Method used

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  • Leadless non-nickel epichlorohydrin rubber sizing material
  • Leadless non-nickel epichlorohydrin rubber sizing material

Examples

Experimental program
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Embodiment Construction

[0013] In the present invention, ECO is masticated on the open mill for several minutes, and anti-sticking agent, anti-aging agent 445, small material, furnace carbon black, and plasticizer are sequentially added after wrapping the rolls, and vulcanizing agent TCY and accelerator are added after the mixing is uniform. Agent TMTD (tetramethylthiuram disulfide), knead evenly, pack into triangular bags and tablet. After the mixed rubber was parked for 24 hours, it was re-milled, and then vulcanized with a flat vulcanizer. The vulcanization condition was 180°C / 10MPa×Tc90.

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PUM

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Abstract

The invention discloses an epichlorohydrin rubber compound without lead and nickel and relates to a rubber, and the rubber compound is made by mixing and processing the following components according to the mass portion: the amount of the epichlorohydrin rubber: 100 mass portions; the amount of a vulcanizing agent TCY: 0.5 to 2 mass portions; the amount of a promoter TMTD: 0.2 to 1 mass portion; the amount of an antioxidant 445: 0.5 to 2 mass portions; the amount of magnesium oxide: 1 to 7 mass portions; the amount of CaCO3: 2 to 8 mass portions; the amount of carbon black: 20 to 60 mass portions; the amount of plasticizer zinc stearate: 1 to 6 mass portions and the amount of an anti-adhesive R-300: 0.5 to 3 mass portions. The prepared epichlorohydrin rubber compound has no lead and nickel toxic hazard, is beneficial to environmental protection, and has the advantages of good antiaging property, mechanical property, ozone resistance, heat resistance, cold resistance, oil resistance, burning resistance and solvent resistance, etc. at the same time.

Description

technical field [0001] The invention relates to a rubber, in particular to a lead-free and nickel-free chlorine ether rubber compound. Background technique [0002] Chlorine ether rubber (ECO) is a saturated rubber whose main chain is composed of C-O and C-C, the side chain contains chlorine atoms, and the main chain has no double bonds. The high saturation of the molecule makes it have good ozone resistance, heat resistance, cold resistance, oil resistance, flame resistance, solvent resistance and air permeability resistance, etc. These comprehensive advantages are unmatched by other rubbers and are widely used. In the automotive industry, textile industry, chemical industry and other fields. [0003] The vulcanization system of chloroether rubber is different from other rubbers. Because it contains chloromethyl, it is necessary to add an acid absorbent—a lead-containing compound, such as: trilead tetroxide (Pb 3 o 4 ), lead phosphate and lead phthalate, etc. Ethylthio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/03C08K13/02C08K5/3492C08K5/18C08K3/04B29C35/02
Inventor 陈尔凡
Owner TIELIN ERFAN RUBBER R & D CO LTD