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High-performance vulcanized rubber sleeve for transmission belt

A technology for transmission belts and rubber sleeves, applied in the field of rubber rubber sleeves, can solve the problems of difficult to guarantee product quality and life, poor processing performance of butyl rubber, poor compatibility and adhesion, etc., to achieve excellent vulcanization rate, good resistance Effects of heat, low permeability

Active Publication Date: 2018-04-06
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the rubber sleeve is prone to surface thermo-oxidative aging and permanent deformation caused by stress during use; even the degradation of rubber molecular chains occurs during long-term use.
[0004] Because butyl rubber has a low degree of unsaturation and its isobutylene bond has high inertness, butyl rubber is commonly used in the prior art to prepare vulcanized rubber sleeves due to its excellent heat resistance and aging resistance, but the processing performance of butyl rubber Poor, poor compatibility and adhesion with other rubbers, and long vulcanization time, high production cost
In the prior art, there is also a technology of using EPDM to prepare vulcanized rubber sleeves. Although the optimization of the matching system and vulcanization system can achieve a certain effect and reduce the cost of the product, the structural characteristics of EPDM itself cause poor mechanical properties, thermal It is difficult to fundamentally solve the problem of large shrinkage, and it is difficult to guarantee product quality and life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a rubber vulcanized rubber sleeve, which is made of the following raw materials in parts by weight: 95 parts by weight of brominated butyl rubber, 5 parts by weight of neoprene rubber, 60 parts by weight of N330, 3 parts by weight of Leveling agent D95, 5 parts by weight of tackifying resin S1068, 10 parts by weight of phenolic resin S1044, 2 parts by weight of microcrystalline wax, 1 part by weight of accelerator DM, 0.5 parts by weight of stearic acid, 1 part by weight of oxidation Magnesium, 5 parts by weight of zinc oxide.

[0029] The present embodiment also provides the preparation method of above-mentioned rubber rubber sleeve, comprises the steps:

[0030] Rubber mixing: Prepare the materials according to the above formula, add them to the internal mixer with an initial temperature of 90°C for mixing, the mixing time is 10 minutes, discharge the rubber at 130°C, and then stop for 24 hours and then extrude it in the extruder once to form ...

Embodiment 2

[0037] The present embodiment provides a kind of rubber vulcanization rubber sleeve, is made of the raw material of following parts by weight: the brominated butyl rubber of 95 parts by weight, the chloroprene rubber of 5 parts by weight, the carbon black N220 of 30 parts by weight, 30 parts by weight Parts of carbon black N330, leveling agent D95 of 3 parts by weight, tackifying resin S1068 of 2 parts by weight, phenolic resin S1044 of 7 parts by weight, microcrystalline wax of 2 parts by weight, accelerator DM of 2 parts by weight, 0.3 parts by weight stearic acid, 0.5 parts by weight of magnesium oxide, 5 parts by weight of zinc oxide.

[0038] The present embodiment also provides the preparation method of above-mentioned rubber rubber sleeve, comprises the steps:

[0039] Rubber mixing: Prepare the materials according to the above formula, add them to the internal mixer with an initial temperature of 90°C for mixing, the mixing time is 10 minutes, discharge the rubber at 1...

Embodiment 3

[0046]The present embodiment provides a kind of rubber vulcanization rubber sleeve, is made of the raw material of following parts by weight: the brominated butyl rubber of 95 parts by weight, the chloroprene rubber of 5 parts by weight, the carbon black N220 of 60 parts by weight, 2.5 parts by weight Parts of leveling agent D95, 5 parts by weight of tackifying resin S1068, phenolic resin S1044 of 5 parts by weight, microcrystalline wax of 1.5 parts by weight, accelerator DM of 1 part by weight, stearic acid of 0.7 parts by weight, 2 parts by weight Magnesium oxide, 5 parts by weight of zinc oxide.

[0047] The present embodiment also provides the preparation method of above-mentioned rubber rubber sleeve, comprises the steps:

[0048] Rubber mixing: Prepare the materials according to the above formula, add them to the internal mixer with an initial temperature of 90°C for mixing, the mixing time is 10 minutes, discharge the rubber at 130°C, and then stop for 24 hours and then...

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Abstract

The invention provides a vulcanized rubber jacket for transmission belts. The vulcanized rubber jacket comprises, by weight, 95 parts of brominated butyl rubber, 5 parts of chloroprene rubber, 30-60 parts of reinforcing agents, 1-5 parts of homogenizing agents, 5-10 parts of tackifying resin, 5-10 parts of vulcanizing phenolic resin, 1-3 parts of microcrystalline wax, 1-3 parts of surface lubricants, 1-3 parts of anti-aging agents, 1-3 parts of accelerators, 0.2-1 part of stearic acid, 0.5-2 parts of magnesium oxide and 5 parts of zinc oxide. The vulcanized rubber jacket has the advantages of excellent air tightness, anti-aging property, permanent deformation resistance and thermal-oxidative aging resistance, long service life and low service cost of products.

Description

technical field [0001] The invention relates to a rubber rubber sleeve, in particular to a rubber rubber sleeve used for vulcanization of transmission belts. Background technique [0002] In the production process of the transmission belt, the rubber sleeve is used to cover the vulcanization mold of the transmission belt, which can ensure the vulcanization pressure of the transmission belt and prevent its high temperature expansion; the quality and performance of the rubber sleeve will directly affect the performance of the transmission belt. [0003] Because the rubber sleeve needs to be used in a high-temperature and humid environment for a long time, and it will bear the stress caused by the pressure difference between the inner and outer walls for a long time during use. Therefore, the rubber sleeve is prone to surface thermo-oxidative aging and permanent deformation caused by stress during use; even the degradation of rubber molecular chains occurs during long-term use....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L11/00C08L61/14C08K13/02C08K3/04C08K3/34
CPCC08K2201/014C08L23/283C08L2201/08C08L2205/035C08L2205/04C08L11/00C08L61/14C08K13/02C08K3/04C08K3/34
Inventor 沈梅辛振祥吴琼瑛朱新夫吴新娟
Owner QINGDAO UNIV OF SCI & TECH
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