A kind of synchronous belt and its manufacturing method
A synchronous belt and frame technology, applied in the field of belt transmission, can solve the problems of synchronous belt reliability reduction, resistance to tortuous stability, etc., and achieve excellent physical and mechanical properties, improved elasticity, and excellent low-temperature performance
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Embodiment 1
[0032] The synchronous belt of this embodiment comprises a synchronous belt skeleton and a synchronous belt film wrapped outside the synchronous belt skeleton, and the synchronous belt film is composed of the following raw materials in parts by weight:
[0033]
[0034] The skeleton of the synchronous belt includes a cloth cover and a skeleton yarn wound on the cloth cover, and the skeleton yarn is prepared by blending nano-carbon fiber, aramid fiber and glass fiber at a weight ratio of 1:1:8.
[0035] The preparation method of above-mentioned synchronous belt, comprises the steps:
[0036] (1) Preparation of synchronous belt film
[0037] Pass hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate on the mill for 4 times respectively, then mix the hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate after mastication Botongda triangular bag 10 times;
[0038] Add polyurethane elastomer, ethylene-vinyl ac...
Embodiment 2
[0044]The synchronous belt of this embodiment comprises a synchronous belt skeleton and a synchronous belt film wrapped outside the synchronous belt skeleton, and the synchronous belt film is composed of the following raw materials in parts by weight:
[0045]
[0046]
[0047] The skeleton of the synchronous belt includes a cloth cover and a skeleton yarn wound on the cloth cover, and the skeleton yarn is prepared by blending nano-carbon fiber, aramid fiber and glass fiber in a weight ratio of 1:1:4.
[0048] The preparation method of above-mentioned synchronous belt, comprises the steps:
[0049] (1) Preparation of synchronous belt film
[0050] Pass hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate on the open mill for 3 times respectively, then mix the hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate after mastication Bo Tong Da triangular bag 8 times;
[0051] Add polyurethane elastomer, ...
Embodiment 3
[0057] The synchronous belt of this embodiment comprises a synchronous belt skeleton and a synchronous belt film wrapped outside the synchronous belt skeleton, and the synchronous belt film is composed of the following raw materials in parts by weight:
[0058]
[0059]
[0060] Wherein, the curing agent is obtained by mixing 3,5-dimethylthiotoluenediamine and 4,4'-methylene-bis-(2,6-diethylaniline) in a weight ratio of 2:1.
[0061] The skeleton of the synchronous belt includes a cloth cover and a skeleton yarn wound on the cloth cover, and the skeleton yarn is made of nano-carbon fiber, aramid fiber and glass fiber blended at a weight ratio of 1:1:6.
[0062] (1) Preparation of synchronous belt film
[0063] The hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate were passed through the mill for 5 times respectively, and then the hydrogenated nitrile butadiene rubber, polycarbonate and polytrimethylene terephthalate after mastication...
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