High-fatigue-life rubber belt and preparation method thereof

A fatigue life, rubber belt technology, applied in the field of high fatigue life rubber belt materials, can solve the problems of reduced life, running belt delamination or fracture, etc., to improve fatigue resistance, increase flex fatigue life, and improve friction performance Effect

Pending Publication Date: 2019-01-15
SHANDONG HUAJU POLYMER MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the compatibility problems between them will lead to delamination or fracture of the running belt during long-term use, which will reduce the service life instead.

Method used

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  • High-fatigue-life rubber belt and preparation method thereof
  • High-fatigue-life rubber belt and preparation method thereof

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Embodiment 1～5

[0032] A kind of high fatigue life rubber belt, its formula composition is shown in Table 1. In the compound, high trans-1,4-butadiene-isoprene copolymer rubber (TBIR), the molar content of butadiene unit is 19.3%, Mooney viscosity ML(3+4, 100°C)= 72.2; natural rubber (NR), grade SMR 20, origin: Malaysia. White carbon black, ZEOSIL 1165MP by precipitation method, Rhodia, France.

[0033] The properties of the compositions disclosed in the examples were evaluated as described below. Based on the national standard GB / T 23651-2009, test the hardness of the vulcanized rubber at 23°C. Based on the national standard GB / T 528-2009, at 23°C, the tensile properties of the vulcanized rubber are tested with a dumbbell-shaped sample, and the elongation is measured at 100% (MA100) and 300% (MA300). Stress (MPa) . Based on the national standard GB / T 529-2008, the right-angle tear performance of the vulcanized rubber was tested at 23°C with a right-angle sample. Based on the national st...

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Abstract

The invention relates to a high-fatigue-life rubber belt and a preparation method thereof. The high-fatigue-life rubber belt formula is mainly composed of the following components in parts by weight:95 to 50 parts of natural rubber NR, 5 to 50 parts of trans-butadiene-isoprene copolymer rubber TBIR, 2-30 parts of white carbon black SiO2, 0.2-3 parts of silane coupling agent Si69, 1-5 parts of zinc oxide-80, 1-8 parts of stearic acid, 0-10 parts of a softener, 0.3 to 6 parts of sulfur, 0.3 to 5 parts of an accelerant, 1 to 8 parts of an anti-aging agent, 0-5 parts of a scorch retarder and 0-8parts of a color masterbatch. According to the invention, the trans-butadiene-isoprene copolymer rubber TBIR and the natural rubber are combined and used, and silicon dioxide is added as a reinforcingagent, and the bending fatigue performance of the vulcanized rubber is improved by more than 50%, the permanent deformation rate is reduced by more than 5%, the wear resistance is improved by more than 10%, and the friction performance is excellent. All performances of the high-fatigue-life rubber belt provided by the invention can meet the use requirements of household and commercial running belts and conveying belts.

Description

technical field [0001] The invention relates to a rubber belt material with high fatigue life, in particular to the application formula of the rubber belt used in combination with trans-butadiene-pentyl copolymer rubber and natural rubber, its mixing process, vulcanization process and properties of vulcanized rubber. Background technique [0002] Rubber conveyor belts, especially for sports equipment, are used extensively in leisure, sports and fitness equipment. For the safety of users, the sports equipment of big brands on the market tend to use imported conveyor belts. Among them, running belts for treadmills account for most of the market. Generally, the running belt of a treadmill is prepared by using PVC as the main base material, and its surface is rough and hard, and the use comfort is low. Chinese invention patent CN103418108 discloses a soft running belt, which can improve the discomfort after use by improving the surface softness, and can directly exercise witho...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/22C08K5/09C08K3/36
CPCC08K2003/2296C08L7/00C08L9/00C08K13/02C08K3/22C08K5/09C08K3/36
Inventor 邵华锋马韵升贺爱华栾波王日国
Owner SHANDONG HUAJU POLYMER MATERIALS CO LTD
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