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Blended coated base fabric for high temperature resistant conveyor belt

A conveyor belt, high temperature resistant technology, used in applications, clothing belts, textiles and papermaking, etc., to achieve long service life, improved friction performance, and good bonding performance.

Active Publication Date: 2018-04-17
WILKIE TECHN TEXTILES JIAXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned technical means can not solve the above-mentioned technical problems preferably.

Method used

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  • Blended coated base fabric for high temperature resistant conveyor belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment relates to the preparation of polyester fiber DTY filaments. The DTY filament of this embodiment is prepared by the following process: take PET resin particles and mix them, then dry them under reduced pressure, and use a twin-screw extruder to blend and granulate. The temperatures in each zone of the twin-screw extruder are shown in Table 1. Shown:

[0023] Table 1

[0024] a district

[0025] After air-cooling on the conveyor belt, it is cut into pieces (the intrinsic viscosity is controlled at 0.64-0.66dL / g, and the melting point is ≥260°C), and the FDY filament is prepared by conventional hot roller stretching method.

Embodiment 2

[0027] This example relates to the preparation of modified polyester fiber DTY filaments. The DTY filament of this embodiment is prepared by the following process: First, polybutenyl succinimide with an average molecular weight of 3500, and diisopropylamine dichloroacetate are heated at 150°C under a nitrogen protective atmosphere. The melt reaction was carried out under the temperature of 60 minutes to prepare modified particles, wherein the weight ratio of polybutenyl succinimide to diisopropylamine dichloroacetate was 5:1. Then, take the modified granules prepared in the step and mix them with PET resin granules (the weight ratio is 10:90) and dry under reduced pressure, and carry out blending and granulation with a twin-screw extruder, and each zone of the twin-screw extruder The temperature is shown in Table 2:

[0028] Table 2

[0029] a district

[0030] After air-cooling on the conveyor belt, it is cut into pieces (the intrinsic viscosity is controlled at 0...

Embodiment 3

[0032] In the coated base fabric of this embodiment, the fabric layer adopts the weaving mode of 2×2 fabric, and the weight is 2.5g / dm 2 , the warp thread adopts the polyester fiber DTY filament of embodiment 1, and the weft thread adopts nylon 66 monofilament. The polyurethane elastic layer is obtained by containing 20 parts by weight of liquefied MDI, 5.0 parts by weight of PEDA-2000, 3.0 parts by weight of polyoxypropylene glycol (Mn=2000), 4.0 parts by weight of hydroxy-terminated styrene-butadiene liquid rubber, 5.0 parts by weight Parts by weight of 1,4-butanediol, 1.2 parts by weight of triglycidyl isocyanurate, 1.5 parts by weight of β-hydroxyalkylamide, 0.20 parts by weight of 3,5-dimethylthiotoluenediamine , 0.20 parts by weight of water, 1.2 parts by weight of graphene oxide, 0.20 parts by weight of dibutyltin dilaurate, and 0.25 parts by weight of the composition of the foam stabilizer L-5305 are mixed uniformly under the condition of 95~100 ° C, and then It is in...

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Abstract

The invention relates to a blend-woven coated backing fabric for a high-temperature resistant conveying belt, belonging to the technical field of power conveying belts. The blend-woven coated backing fabric for the high-temperature resistant conveying belt comprises a fabric layer blend-woven by warp yarns containing polyester fiber filaments and weft yarns containing polyamide monofilaments, wherein a polyurethane elastic layer is formed on the fabric layer in a pouring manner. According to the blend-woven coated backing fabric for the high-temperature resistant conveying belt, the polyurethane elastic layer and the fabric layer are bonded favorably, the friction property is improved, and a long service life can be expected.

Description

technical field [0001] The invention relates to the technical field of power transmission belts, more specifically, the invention relates to a mixed-weave coated base fabric for high-temperature-resistant transmission belts. Background technique [0002] Conveyor belts with coated base fabrics are generally used in industrial machinery and are usually served in relatively harsh environments, such as being subjected to excessive loads and high temperatures, so that the power transmission belts are required to have high strength and High temperature performance. Under high loads, the pulley shafts bend and deform, so that the conveying path defined by the pulleys tends to be skewed, and if the belt is operated at an angle of inclination relative to the pulleys, the side surface of the belt in contact with the pulley flanges will cause abnormalities wear and tear. Additionally, under high loads, the conveyor belt tends to stretch to such an extent that the tensioning device c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0015D06N3/0034D06N3/0036D06N3/14D06N2211/04
Inventor 何建良贺新
Owner WILKIE TECHN TEXTILES JIAXING
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