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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

Inactive Publication Date: 2015-09-09
INO IND BELTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the conveyor belt made of the technical solution disclosed in the above patent has good low-temperature resistance, it can not become brittle at tens of degrees below zero. Since the conveyor belt is a rubber conveyor belt, which is a heavy-duty conveyor belt, it has a large unit mass and high energy consumption. , not energy-saving; at the same time, the rubber conveyor belt is insufficient in wear resistance, and the Tiber wear is greater than 0.06mg / r. In the actual use process, its wear is high and its service life is low. Working conditions with high low temperature performance requirements

Method used

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  • Wear-resisting low-temperature-resisting PUR logistics conveying belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes a middle skeleton fabric layer and a PUR coating impregnated on the upper and lower surfaces of the middle skeleton fabric layer. The warp and weft density of the cloth is 46×16 threads / inch, and the thickness is 3.6mm.

[0032] In this embodiment, the number average molecular weight of PUR is 5000, its viscosity is less than 20000cP·s at a temperature of 110-120°C, and its cured Shore hardness is 60HA.

[0033] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt in this embodiment specifically includes the following steps:

[0034] (1) the polyester fiber base cloth that double warp beams are woven is carried out pre-setting processing;

[0035] (2) Arranging the polyester fiber base after the pre-setting treatment in step (1) in a double-roll dipping machine, and impregnating PUR on both sides, to obtain a polyest...

Embodiment 2

[0046] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes a middle skeleton fabric layer and a PUR coating impregnated on the upper and lower surfaces of the middle skeleton fabric layer. The warp and weft density of the cloth is 46×16 threads / inch, and the thickness is 4.5mm.

[0047] In this embodiment, the number average molecular weight of PUR is 8000, its viscosity is less than 20000cP·s when the temperature is 110-120°C, and the cured Shore hardness is 80HA.

[0048] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt in this embodiment specifically includes the following steps:

[0049] (1) the polyester fiber base cloth that double warp beams are woven is carried out pre-setting processing;

[0050] (2) Arranging the polyester fiber base after the pre-setting treatment in step (1) in a double-roll dipping machine, and impregnating PUR on both sides, to obtain a pol...

Embodiment 3

[0061] The wear-resistant and low-temperature resistant PUR logistics conveyor belt of this embodiment includes a middle skeleton fabric layer and a PUR coating impregnated on the upper and lower surfaces of the middle skeleton fabric layer. The warp and weft density of the cloth is 46×16 threads / inch, and the thickness is 4.5mm.

[0062] In this embodiment, the number average molecular weight of PUR is 6000, its viscosity is less than 20000cP·s when the temperature is 110-120°C, and the cured Shore hardness is 70HA.

[0063] The preparation method of the wear-resistant and low-temperature resistant PUR logistics conveyor belt in this embodiment specifically includes the following steps:

[0064] (1) the polyester fiber base cloth that double warp beams are woven is carried out pre-setting processing;

[0065] (2) Arranging the polyester fiber base after the pre-setting treatment in step (1) in a double-roll dipping machine, and impregnating PUR on both sides, to obtain a pol...

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Abstract

The invention relates to a wear-resisting low-temperature-resisting PUR logistics conveying belt and a preparation method thereof. The logistics conveying belt comprises a middle framework fabric layer and a PUR coating immersed at the upper and lower surfaces of the middle framework fabric layer; the thickness of the logistics conveying belt is 4-5 mm, and the surface shore hardness is 80-90 HA. When the logistics conveying belt is prepared, the PUR is immersion is performed on a polyester fiber base cloth after the pre-molding treatment by a dual-roller impregnator; then the polyester fiber base cloth is repeatedly extruded for 2-3 times at 110-120 DEG C; PUR solidification is carried out under the condition of constant temperature and humidity, the back face of the conveying belt is polished, and thus the PUR logistics conveying belt is prepared. Compared with prior art, the polyester fiber base cloth is prepared by PUR immersing technique; the low-temperature resistance thereof is better than that of the like product immersed by traditional PVC; the logistics conveying belt can be used for a long term under 40 DEG C low-temperature environment; the PUR logistics conveying belt effectively solves the technical problems that the logistics conveying belt is big in surface hardness, hardened and off-line ran, easy to break, short in service life, bad in wear resistance, and other technical problems of the logistics conveying belt under the low-temperature environment.

Description

technical field [0001] The invention belongs to the technical field of conveyor belt manufacture, and relates to a wear-resistant and low-temperature resistant PUR logistics conveyor belt and a preparation method thereof. Background technique [0002] PUR (Polyurethane Reactive), the full name of the moisture-curing reactive polyurethane hot melt adhesive, contains polar and chemically active urethane groups (-NHCOO-) or isocyanate groups (-NCO) in its molecular structure. In the actual production and processing process, under the condition of inhibiting the chemical reaction, for example, PUR is melted into a fluid by heat, so as to facilitate coating. The moisture present in the medium and the moisture attached to the surface of the adherend react with it and extend the chain to form a high-molecular polymer with high cohesion, which significantly improves the adhesion, heat resistance, and low temperature resistance. PUR is a pure solid or pure liquid non-toxic substance...

Claims

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Application Information

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IPC IPC(8): B65G15/34D06M15/564D06M101/32
CPCB65G15/34B65G2812/02198D06M15/564D06M2101/32
Inventor 涂国圣陈新新
Owner INO IND BELTING CO LTD
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