Light-colored microporous EPDM sponge rubber and preparation method thereof

The technology of EPDM rubber and EPDM is applied in the field of light-colored microporous structure EPDM sponge rubber and its preparation field, which can solve the problem that rubber sealing strips do not have hygroscopic properties, and can achieve hygroscopic properties, Good hygroscopic performance, the effect of expanding the scope of application

Inactive Publication Date: 2012-06-20
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional rubber sealing strips do not have hygroscopic properties, and their disadvantages are obvious in special occasions such as insulating glass

Method used

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  • Light-colored microporous EPDM sponge rubber and preparation method thereof
  • Light-colored microporous EPDM sponge rubber and preparation method thereof
  • Light-colored microporous EPDM sponge rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The EPDM sponge rubber described in this embodiment is composed of an EPDM rubber matrix, a foaming agent, a colorant, a filling reinforcing agent, a plasticizer, and related vulcanizing agents and vulcanization assistants. The feature of this embodiment is that the colorant rutile titanium dioxide, ultramarine blue and fluorescent whitening agent are introduced into the rubber compounding system as a kind of auxiliary agent, so that the rubber material has a white or close to white color, which expands the application of rubber products scope. The characteristics of this embodiment also include a kind of light-colored EPDM with uniform cells and low compression set, which is made by combining the thermal decomposition of the foaming agent and the promotion of the accelerator in the EPDM rubber. Sponge rubber material.

[0032] The composition of this embodiment includes 100 parts by mass of EPDM rubber, 6 parts of blowing agent OBSH, 3 parts of stearic acid, 5 parts o...

Embodiment 2

[0041] The composition of this example is consistent with that of Example 1. The difference between the composition of this example and Example 1 is that 1 part of PZ, 1.5 parts of BZ, 2 parts of Si-69, 1.5 parts of KH550, 30 parts of paraffin oil, 30 parts of naphthenic oil are used, and 110 parts of active calcium is used instead of super Fine talcum powder is used as a filler, and 1 part of antiaging agent 246 is used instead of antiaging agent 2246.

[0042] The preparation method and performance test standard of this example are the same as those of Example 1, and the performance test results of the light-colored EPDM sponge rubber obtained in this example are shown in Table 1.

Embodiment 3

[0044] The composition of this example is consistent with that of Example 1. The difference between the composition of this example and Example 1 is that 1 part of PZ, 1.5 parts of BZ, 1.5 parts of DPTT, 1.5 parts of EZ, 1 part of Si-69, 1 part of KH550, 0.2 part of ultramarine blue are used, and 110 parts of 3A molecular sieve powder are used Alternative to extra fine talc.

[0045] The preparation method and performance testing standard of this embodiment are the same as those of Example 1. The performance test results of the light-colored EPDM sponge rubber obtained in this embodiment are shown in Table 1.

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Abstract

The invention relates to rubber and a preparation method thereof, and provides a light-colored microporous EPDM sponge rubber which is advantageous in uniform pore, large expansion ratio and less compression permanent deformation and is suitable for producing sealing strip products, and a simple and feasible preparation method thereof. The light-colored microporous EPDM sponge rubber is made from EPDM sponge rubber, foaming agents, reinforcing fillers, plasticizers, anti-aging agents, colorants, vulcanizers and other vulcanizing additives. The colorants may be rutile titanium dioxide, fluorescent whiteners and ultramarines; the foaming agents, such as azobisformamide (AC), 4,4'-oxydibenzenesulfonyl hydrazide (OBSH) and urea, are heated to decompose to release gases; the types and consumptions of vulcanizers and vulcanizing additives can be changed. The light-colored microporous EPDM sponge rubber can be used in combination with white building materials, and the application range of rubber materials is increased.

Description

technical field [0001] The invention relates to a rubber and a preparation method thereof, in particular to a light-colored microporous structure EPDM sponge rubber and a preparation method thereof. Background technique [0002] The manufacture of light-colored rubber products is a key technology. Light-colored rubber products can greatly expand the scope of application of rubber materials, and can be combined with white and other light-colored building materials or products. Chinese patent CN 1181307 A discloses the composition and preparation method of a PVC high-pressure hose and base material using a fluorescent whitening agent. After adding a fluorescent whitening agent to the PVC high-pressure hose described in this patent, the gloss of the material The degree of improvement shows that the use of fluorescent whitening agents can improve the whiteness and brightness of polymer materials, making the materials more beautiful and meeting the requirements for special occas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/36C08K3/22C08K5/353C08K5/09C08J9/04
Inventor 王重刘晓博毕文军明长城张佳樑蒋洪敏方庆红张秀斌王娜杨凤韩文驰
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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