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A kind of impregnation treatment technology of dipped aramid fiber rope for polyurethane synchronous belt

A technology of impregnating aramid fiber and polyurethane, which is applied in fiber treatment, textile and papermaking, fiber type, etc. It can solve problems such as air bubbles and yield decline, and achieve the effect of preventing air bubbles and enhancing adhesion

Active Publication Date: 2022-04-26
QINGDAO TIPONT CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the production process of polyurethane synchronous belts, it is easy to generate air bubbles due to moisture, the voids of the strands, the voids of the base material, etc., resulting in a decline in the yield, which has brought great troubles to the manufacturers of polyurethane synchronous belts.
[0004] Most of the existing technologies are simply improved from the production process of polyurethane synchronous belts, which cannot completely solve the problem

Method used

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  • A kind of impregnation treatment technology of dipped aramid fiber rope for polyurethane synchronous belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of the pre-treatment solution for dipping aramid fiber cords: Take raw materials, 7 parts of isocyanate, 12 parts of polyester polyol, and 100 parts of toluene. After the dissolution is complete, slowly add the polyester polyol, stir for 10 minutes until it is completely dissolved, and then the pretreatment solution for dipping aramid fiber cords can be prepared.

[0027] The preparation of the second-bath treatment liquid for dipping aramid fiber cords: take raw materials, 30 parts of deionized water, 20 parts of diethanolamine modified polyurethane, 30 parts of sulfonate polyether glycol modified polyurethane, trimethylol acrylate 10 parts of modified polyurethane, under normal temperature conditions, add deionized water into the container, add diethanolamine modified polyurethane while stirring, stir for 1-5 minutes to mix evenly, add sulfonate polyether glycol modified polyurethane, stir After 2-8 minutes, mix evenly, add trimethylol acrylate modified po...

Embodiment 2

[0030] According to the process described in Example 1, the difference is that the pre-treatment solution for dipping aramid cords and the second-bath treatment solution for dipping aramid cords composed of the following formulas are used for preparation.

[0031] Dipping aramid cord pretreatment liquid: 5 parts of isocyanate, 10 parts of polyester polyol, 100 parts of toluene;

[0032] Second-bath treatment liquid for dipping aramid cord: 30 parts of deionized water, 30 parts of diethanolamine modified polyurethane, 20 parts of sulfonate polyether glycol modified polyurethane, 10 parts of trimethylol acrylate modified polyurethane .

Embodiment 3

[0034] According to the process described in Example 1, the difference is that the pre-treatment solution for dipping aramid cords and the second-bath treatment solution for dipping aramid cords composed of the following formulas are used for preparation.

[0035] Preparation of the pretreatment liquid for dipping aramid fiber cords: 8 parts of isocyanate, 6 parts of polyester polyol, 100 parts of toluene;

[0036] Preparation of the second-bath treatment solution for soaking aramid fiber cords: 50 parts of deionized water, 30 parts of diethanolamine modified polyurethane, 20 parts of sulfonate polyether glycol modified polyurethane, trimethylol acrylate modified polyurethane 30 servings.

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Abstract

The present invention creatively provides a dipping treatment technology for dipping aramid cords for polyurethane synchronous belts, which can not only effectively solve the problem of effective bonding between aramid fiber-dipping film-polyurethane, but also control the moisture content, Fill the gap between the cord and polyurethane to reduce air bubbles.

Description

technical field [0001] The invention belongs to the field of dipping treatment of aramid fiber cords, and in particular relates to a dipping treatment technology for dipped aramid cords for polyurethane synchronous belts. The treatment technology is mainly used for preparing dipped aramid cords for polyurethane synchronous belts. Background technique [0002] Dipped aramid cord is one of the main skeleton materials of polyurethane synchronous belt, which is used to enhance the strength and durability of polyurethane synchronous belt. Since the dipped aramid cord for reinforcement has a dipping film formed by a special treatment agent, it can not only improve the adhesion between the fiber and the matrix of the polyurethane product, but also protect the aramid fiber itself. role, thereby improving the durability of polyurethane products. [0003] Usually, the bonding between the dipped aramid cord and the polyurethane is mainly done by the dipping film, one end of the dippin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/572D06M15/564D06M101/36
CPCD06M15/572D06M15/564D06M2101/36
Inventor 于白鸽于得江姜伟
Owner QINGDAO TIPONT CORD