triangle belt
A V-belt and EPDM technology, applied in the field of transmission belts, can solve problems such as cracks, high temperature, and restrictions on the use of neoprene rubber, and achieve the effects of improving high temperature and low temperature resistance, prolonging service life, and long service life
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Embodiment 1
[0017] Such as figure 1 Shown: a V-belt, including a back glue layer 1, an adhesive layer 2 and a tooth rubber layer 3 which are sequentially fixed by vulcanization hot-melt bonding, and the adhesive layer 2 is covered with cords arranged along the length direction 5. The tooth rubber layer 3 includes a tooth portion 4 .
[0018] In this embodiment, the components of the tooth rubber layer 3 and their weight ratios are:
[0019] EPDM: 100; Aramid staple fiber: 20; Zinc oxide: 5; Stearic acid: 1; Vulcanization aid: 2; Vulcanizing agent DCP: 2; Reinforcing agent: 40; Softener: 10. EPDM rubber is a rubber with an ethylene content of 30%, a Mooney viscosity of 55, and a third monomer content of 1%.
[0020] The adhesive layer 1 is made of fiber-reinforced rubber, and the specific components and weight ratios of the adhesive layer 1 are:
[0021] EPDM: 100; Aramid staple fiber: 10; Zinc oxide: 1; Stearic acid: 1; Vulcanization aid: 2; Vulcanizing agent DCP: 2; Reinforcing agent:...
Embodiment 2
[0024] Embodiment two: the basic structure of this embodiment is identical with embodiment one, and its difference is as follows:
[0025] In this embodiment, the components of the tooth rubber layer 3 and their weight ratios are:
[0026] EPDM: 100; Aramid staple fiber: 30; Zinc oxide: 8; Stearic acid: 2; Vulcanization aid: 5; Vulcanizing agent DCP: 4; Reinforcing agent: 60; Softener: 15. EPDM rubber is a rubber with an ethylene content of 70%, a Mooney viscosity of 65, and a third monomer content of 4.5%.
[0027] The adhesive layer 1 is made of fiber-reinforced rubber, and the specific components and weight ratios of the adhesive layer 1 are:
[0028] EPDM: 100; Aramid staple fiber: 20; Zinc oxide: 5; Stearic acid: 2; Vulcanization aid: 5; Vulcanizing agent DCP: 4; Reinforcing agent: 60; Softener: 8. EPDM rubber is a rubber with an ethylene content of 70%, a Mooney viscosity of 60, and a third monomer content of 4.5%.
[0029] Described bonding layer 2 is made of the EPD...
Embodiment 3
[0031] Embodiment three: the basic structure of this embodiment is identical with embodiment one, and its difference is as follows:
[0032] In this embodiment, the components of the tooth rubber layer 3 and their weight ratios are:
[0033] EPDM: 100; Aramid staple fiber: 25; Zinc oxide: 6; Stearic acid: 2; Vulcanization aid: 3; Vulcanizing agent DCP: 3; Reinforcing agent: 50; Softener: 12. EPDM rubber is a rubber with an ethylene content of 45%, a Mooney viscosity of 60, and a third monomer content of 2.5%.
[0034] The adhesive layer 1 is made of fiber-reinforced rubber, and the specific components and weight ratios of the adhesive layer 1 are:
[0035] EPDM: 100; Aramid staple fiber: 15; Zinc oxide: 3; Stearic acid: 2; Vulcanization aid: 3; Vulcanizing agent DCP: 3; Reinforcing agent: 50; Softener: 4. EPDM rubber is a rubber with an ethylene content of 60%, a Mooney viscosity of 58, and a third monomer content of 3%.
[0036] Described bonding layer 2 is made of the EPD...
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