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Environment-friendly impregnation liquid, preparation method and application

A kind of dipping liquid, environmental protection technology, applied in the direction of fiber treatment, textile and paper making, fiber type, etc., to achieve the effect of shortening the process time

Inactive Publication Date: 2021-05-25
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the RFL dipping layer, the functional groups on the RF resin can be combined with the polar groups on the fiber surface, and the rubber latex components in the cross-network structure of the RF resin can be cross-linked with the rubber matrix through co-vulcanization, thereby Form an adhesive transition layer between the fiber and the rubber matrix; although the RFL impregnation technology is quite mature and has a low production cost, formaldehyde, as the main raw material, was listed as a chemical that causes leukemia by the International Cancer Research Center in 2009 One of the products, and in the production process of RFL, a large amount of toxic and harmful gases will also be emitted

Method used

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  • Environment-friendly impregnation liquid, preparation method and application
  • Environment-friendly impregnation liquid, preparation method and application
  • Environment-friendly impregnation liquid, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 A kind of preparation method of environment-friendly dipping solution A1

[0024] This embodiment provides a kind of preparation method of environment-friendly dipping liquid A1, and it is to take 2kg phenol and 1kg isophorone diisocyanate to carry out cross-linking reaction respectively, obtain 3kg phenol-blocked isophorone diisocyanate, mix it with 2kg Add ethylene glycol and 0.1kg triethylamine into 30kg deionized water, mix and stir at 20°C for 1.5h, at this temperature, add 90kg of butylfenpyridine latex with a solid content of 40% and continue stirring for 2h to obtain a solid content of 25.6%. The environment-friendly dipping solution A1.

Embodiment 2～9

[0025] The preparation method of embodiment 2~9 environment-friendly dipping solution A2~A9

[0026] Embodiments 2 to 9 provide a method for preparing environmentally friendly dipping solutions A2 to A9 in one-to-one correspondence. The preparation method is basically the same as that in Example 1, the only difference being that the raw materials used and their dosage and some process parameters are different. For specific data, see Table 1.

[0027] Table 1: Data sheet of preparation methods of environmental protection dipping solutions A2~A9

[0028]

[0029]

[0030]

[0031]

[0032] Other steps are the same as in Example 1.

Embodiment 10

[0033] Application of embodiment 10 environment-friendly dipping liquid and comparison of dipping effect

[0034] This example is to compare the impregnation effects of the environment-friendly dipping solutions A1-A9 obtained in Examples 1-9 and the traditional RFL dipping solutions by application.

[0035] Respectively intercept 10 sections of aramid fibers with a length of 20m (Shandong Hailong Braite Chemical Fiber Co., Ltd., 1670dtex / 2, the initial twist is 300T / m) and 10 sections of aramid / nylon blended fibers with a length of 20m (Pingdingshan Shenma Cord Fabric Development Co., Ltd., aramid 1670dtex / 2 + Nylon 2100dtex, the initial twist is 280T / m);

[0036] Select 9 sections from the 10 sections of aramid fiber, and adopt the two-bath dipping method (the dipping solution used in the first bath is prepared from 92.4kg deionized water, 3.2kg blocked isocyanate and 1.3kg epoxy resin, and the dipping solution used in the second bath They are respectively the environment-...

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PUM

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Abstract

The invention belongs to the field of high polymer material processing, and discloses an environment-friendly impregnation liquid, a preparation method and application. The environment-friendly impregnation liquid provided by the invention is prepared by mixing blocked isocyanate, polyol, rubber latex and other raw materials, and is used for completely replacing a conventional RFL impregnation liquid formed by mixing resorcinol and formaldehyde. The environmental pollution is reduced, the production safety is improved, and the mechanical property of the organic fiber material is further enhanced. The preparation method is suitable for preparing the impregnation liquid, and is particularly suitable for preparing the environment-friendly impregnation liquid, and the obtained environment-friendly impregnation liquid is used as a two-bath impregnation liquid and is used for impregnating organic materials.

Description

technical field [0001] The invention belongs to the field of polymer material processing, and relates to a dipping solution, in particular to an environment-friendly dipping solution, a preparation method and an application. Background technique [0002] In the rubber industry production, in order to bond between fibers and rubber substrates with very different polarity and rigidity, the most common treatment method is to impregnate the fiber material with traditional resorcinol-formaldehyde-latex (RFL) deal with. In the RFL dipping layer, the functional groups on the RF resin can be combined with the polar groups on the fiber surface, and the rubber latex components in the cross-network structure of the RF resin can be cross-linked with the rubber matrix through co-vulcanization, thereby Form an adhesive transition layer between the fiber and the rubber matrix; although the RFL impregnation technology is quite mature and has a low production cost, formaldehyde, as the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/693D06M13/395D06M13/148D06M15/53D06M13/328D06M13/332D06M15/356D06M15/227D06M101/34D06M101/36
CPCD06M15/693D06M13/395D06M13/148D06M15/53D06M13/328D06M13/332D06M15/3562D06M15/227D06M2101/36D06M2101/34
Inventor 王文才张博田明张立群宁南英
Owner BEIJING UNIV OF CHEM TECH
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