Wear-resisting low-temperature-resisting PUR logistics conveying belt and preparation method thereof
A conveyor belt and low-temperature-resistant technology, which is applied in the field of wear-resistant and low-temperature resistant PUR logistics conveyor belt and its preparation, can solve the problems of large unit mass, low service life, and insufficient wear resistance, and achieve low price, long service life, The effect of reducing friction
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Example Embodiment
[0030] Example 1:
[0031] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes an intermediate frame fabric layer and PUR coatings impregnated on the upper and lower surfaces of the intermediate frame fabric layer. The intermediate frame fabric layer is a double warp beam woven high-strength polyester fiber base fabric. The warp and weft density of the cloth is 46×16 pieces / inch, and the thickness is 3.6mm.
[0032] In this embodiment, the number average molecular weight of PUR is 5000, and its viscosity is less than 20000 cP·s when the temperature is 110-120°C, and the Shore hardness after curing is 60 HA.
[0033] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment specifically includes the following steps:
[0034] (1) The polyester fiber base fabric woven by double warp beams is subjected to predetermined processing;
[0035] (2) Arranging the polyester fiber b...
Example Embodiment
[0045] Example 2:
[0046] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes an intermediate frame fabric layer and PUR coatings impregnated on the upper and lower surfaces of the intermediate frame fabric layer. The intermediate frame fabric layer is a double warp beam woven high-strength polyester fiber base fabric. The warp and weft density of the cloth is 46×16 pieces / inch, and the thickness is 4.5mm.
[0047] In this embodiment, the PUR number average molecular weight is 8000, and its viscosity is less than 20000 cP·s when the temperature is 110-120°C, and the Shore hardness after curing is 80 HA.
[0048] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment specifically includes the following steps:
[0049] (1) The polyester fiber base fabric woven by double warp beams is subjected to predetermined processing;
[0050] (2) Arranging the polyester fiber base...
Example Embodiment
[0060] Example 3:
[0061] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes an intermediate frame fabric layer and PUR coatings impregnated on the upper and lower surfaces of the intermediate frame fabric layer. The intermediate frame fabric layer is a double warp beam woven high-strength polyester fiber base fabric. The warp and weft density of the cloth is 46×16 pieces / inch, and the thickness is 4.5mm.
[0062] In this embodiment, the PUR number average molecular weight is 6000, and its viscosity is less than 20000 cP·s when the temperature is 110-120°C, and the Shore hardness after curing is 70 HA.
[0063] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment specifically includes the following steps:
[0064] (1) The polyester fiber base fabric woven by double warp beams is subjected to predetermined processing;
[0065] (2) Arranging the polyester fiber base...
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