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A kind of repdm/riir elastomer and preparation method thereof

An elastomer, PZ1.5 technology, applied in the field of REPDM/RIIR elastomer and its preparation, to achieve the effect of simple preparation method

Inactive Publication Date: 2016-01-20
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about the introduction of REPDM / RIIR waterproof materials in the literature patents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In this example, the vulcanization system used is composed of sulfur, BZ, and M, and the vulcanization activator is zinc oxide combined with stearic acid. The specific formula: 80 parts of REPDM, 20 parts of RIIR, 1.5 parts of BZ, 0.5 parts of DM, oxidation 5 parts of zinc, 3 parts of stearic acid, 1.5 parts of sulfur.

[0020] The REPDM / RIIR elastomer described in this embodiment, its preparation steps:

[0021] a. First pass REPDM and RIIR on the mill for several times to mix them evenly, then add zinc oxide and stearic acid, add accelerator after mixing evenly, and finally add sulfur; then pack the mixed rubber 10 times, mix Discharge evenly and store for 24 hours for use;

[0022] b. Return the film that has been parked for 24 hours and reload it for later use;

[0023] c. Put the remixed rubber in step b on a flat vulcanizer for vulcanization, the temperature is controlled at 160°C, and the t is measured with a rubber rotorless vulcanizer during vulcanization. 1...

Embodiment 2

[0026] The difference between this example and Example 1 is that the type of accelerator is changed, and the specific formula is: 80 parts of REPDM, 20 parts of RIIR, 1.5 parts of BZ, 0.5 parts of M, 5 parts of zinc oxide, 3 parts of stearic acid, and 1.5 parts of sulfur share. The mechanical property test results of the REPDM / RIIR elastomer described in this example are shown in Table 2.

Embodiment 3

[0028] The difference between this example and Example 1 is that the type of accelerator is changed, and the specific formula is: 80 parts of REPDM, 20 parts of RIIR, 1.5 parts of PZ, 0.5 parts of DM, 5 parts of zinc oxide, 3 parts of stearic acid, and 1.5 parts of sulfur share. The mechanical property test results of the REPDM / RIIR elastomer described in this example are shown in Table 2.

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PUM

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Abstract

A REPDM / RIIR elastomer and a preparation method thereof, relating to an elastomer material and a preparation method thereof, the waterproof material is composed of the following components in parts by mass: 100 parts of REPDM and RIIR combined, 1-2 parts of sulfur, 0.9- 2 parts of accelerator, 2.5-8 parts of vulcanization activator, 0-20 parts of carbon black. The combination of EPDM and IIR has good process compatibility and can obtain better comprehensive performance. Combined glue can be vulcanized by sulfur, peroxide, ester and resin, and their vulcanization rate is relatively close, and it is easy to form co-vulcanized materials. The present invention fully utilizes REPDM and RIIR to replace EPDM and IIR, and uses reinforcing agents and vulcanization aids to reduce the cost of the waterproof material, make the waterproof material easy to form, and improve the adhesion with the substrate. The REPDM / RIIR waterproof material with excellent ozone resistance, weather resistance, low temperature resistance, chemical medium resistance, and hot air aging resistance has been obtained through experimental research.

Description

technical field [0001] The invention relates to an elastomer material and a preparation method thereof, in particular to a REPDM / RIIR elastomer and a preparation method thereof. Background technique [0002] The disposal of waste rubber is one of the serious problems facing society today. In order to meet the ever-increasing material performance requirements, rubber is gradually developing towards high strength, wear resistance, stability and aging resistance. However, the discarded rubber cannot be degraded naturally for a long time, resulting in more difficult to handle than plastic pollution (white pollution). black pollution, wasting precious rubber resources. Building leakage has always been a difficult problem in my country's construction industry. At present, the leakage rate of houses in our country is very high, mainly due to the low grade and poor quality of waterproof materials. Therefore, there is a great demand for high-performance waterproof materials in our...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L23/22C08K13/02C08K3/06C08K3/04C08K5/47C08K5/39C08K5/40C08K5/09C08K3/22
Inventor 王重宫小曼于丽郭翠翠陈慧胡嘉文
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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