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Ethylene-propylene-diene monomer reinforcing agent as well as preparation method and application thereof

A technology of EPDM rubber and reinforcing agent, which is applied in the direction of textiles and papermaking, non-fiber pulp addition, coating, etc., which can solve the problem of insignificant improvement in tensile strength and folding resistance, and adverse effects on the appearance of paper cultural relics, etc. problem, to achieve the effect of simple and convenient preparation method, improving the ability to resist the erosion of external unfavorable conditions, and good application prospects

Active Publication Date: 2019-08-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a preparation method of EPDM reinforcing agent to solve the problem that the existing paper cultural relic reinforcing agent does not significantly improve the tensile strength and folding endurance of paper cultural relics, and it is easy to Issues that adversely affect the appearance of paper artifacts

Method used

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  • Ethylene-propylene-diene monomer reinforcing agent as well as preparation method and application thereof
  • Ethylene-propylene-diene monomer reinforcing agent as well as preparation method and application thereof
  • Ethylene-propylene-diene monomer reinforcing agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of EPDM reinforcing agent, it is made by melt grafting reaction by 10g EPDM rubber, 0.3g maleic anhydride as graft monomer and 0.3g styrene as co-monomer.

[0035] The above-mentioned EPDM reinforcing agent is specifically prepared through the following steps:

[0036] 1) According to the above raw material ratio, dissolve maleic anhydride in styrene, then add EPDM rubber and stir to make it evenly mixed to obtain reaction solution A, wherein, in order to fully carry out the reaction, the above-mentioned EPDM The rubber is granular, and the particle size is in the range of 0.1mm-0.3mm. It is mainly made of blocky EPDM rubber cut into small pieces, and then crushed by a high-speed mixer;

[0037] 2) Add the reaction solution A to the micro-twin-screw extruder, and keep the screw speed (reaction speed) at 42r / min, and the reaction temperature at 200°C, so that the materials in the reaction solution A are melted and grafted to obtain the product B ;

[0038] 3) We...

Embodiment 2

[0043]The difference between this example and Example 1 is that in this example, the comonomer for preparing the EPDM rubber reinforcement is methyl methacrylate. Among them, the test results of the gel rate during the preparation of the EPDM reinforcement are shown in Table 1.

Embodiment 3

[0045] The difference between this example and Example 1 is that in this example, the comonomer for preparing the EPDM reinforcement is acrylic acid. Among them, the test results of the gel rate during the preparation of the EPDM reinforcement are shown in Table 1.

[0046] In order to clearly characterize the influence of the EPDM reinforcing agent of the present invention on the paper pattern appearance, the EPDM reinforcing agent with a mass percentage concentration of 0.4% was selected to be prepared from the EPDM reinforcing agent of Example 1. Glue-coated paper sample, after natural drying at room temperature, conduct SEM test, the test results are as follows figure 1 shown.

[0047] Depend on figure 1 It can be seen that, with the EPDM reinforcing glue prepared by the EPDM reinforcing agent of Example 1 of the present invention, after the paper is processed, the original part of the mesh structure of the paper pattern is maintained, which macroscopically affects the ...

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Abstract

The invention provides an ethylene-propylene-diene monomer reinforcing agent as well as a preparation method and an application thereof. The ethylene-propylene-diene monomer reinforcing agent mainly comprises the following components in parts by weight: 100 parts of an ethylene-propylene-diene monomer, 1-5 parts of a grafting monomer and 1-5 parts of a comonomer through a melting grafting reaction. According to the ethylene-propylene-diene monomer reinforcing agent provided by the invention, the ethylene-propylene-diene monomer, the grafting monomer and the comonomer are adopted as raw materials, and the grafting monomer is grafted into the ethylene-propylene-diene monomer through the melting grafting reaction, so that on one hand, the adhesiveness and the compatibility of the ethylene-propylene-diene monomer reinforcing agent with other materials can be improved, the ethylene-propylene-diene monomer reinforcing agent has a high grafting rate, and when being applied to paper relic protection, the ethylene-propylene-diene monomer reinforcing agent is capable of greatly improving tensile strength and fracture resistance of paper; and on the other hand, the gel rate in the melting grafting process can be reduced, so that the flowing processability of the ethylene-propylene-diene monomer reinforcing agent can be improved, the yellowing phenomenon of the ethylene-propylene-diene monomer reinforcing agent in the grafting process can be improved, and when being applied to paper relic protection, the ethylene-propylene-diene monomer reinforcing agent is capable of making coated paper colorless and transparent, and original properties of the paper can be generally maintained.

Description

technical field [0001] The invention relates to the technical field of paper processing, in particular to a EPDM rubber reinforcing agent and a preparation method and application thereof. Background technique [0002] Paper cultural relics are the historical and cultural heritage left to us by the ancients, but as time goes by, paper cultural relics are affected by hydrolysis soaking, mold growth, etc., and problems such as mildew, yellowing, pulverization and brittleness will appear. Some cannot even be flipped, which not only reduces the collection and preservation value of ancient cultural relics, but also reduces the value of appreciation and research on their contents. With the advancement of technology, many new materials have begun to be used in the research of paper cultural relic restoration. The materials used to restore and protect paper cultural relics need to meet the following requirements: (1) The material has good transparency, no color, no luster, and good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/06C08F222/06C08F212/08D21H19/20D21H21/14
CPCC08F255/06D21H19/20D21H21/14C08F222/06C08F212/08
Inventor 董丽杰赵婷婷宋少坤柳扬张扬琚艳云
Owner WUHAN UNIV OF TECH
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