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A kind of environment-friendly wear-resistant epdm material and preparation method thereof

An environmentally friendly and rubber-based technology, applied in the field of rubber materials, can solve the problems of complex preparation methods and non-latex rubber preparation technology not mentioned, and achieve the effects of excellent wear resistance, increased strength, and good tensile strength

Active Publication Date: 2021-11-02
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese Invention Patent CN102718995A An industrial lignin-reinforced rubber and its preparation method, it uses lignin solution and latex blending technology, needs to add coagulant, dehydration, washing, drying and other processes, the preparation method is complicated and the preparation of non-latex rubber technology not mentioned

Method used

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  • A kind of environment-friendly wear-resistant epdm material and preparation method thereof
  • A kind of environment-friendly wear-resistant epdm material and preparation method thereof
  • A kind of environment-friendly wear-resistant epdm material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An environment-friendly and wear-resistant EPDM material in this embodiment, the mixing ratio is shown in Table 2.

[0037] Table 2

[0038]

[0039]

[0040] The mixing process of the environmental protection wear-resistant EPDM material of this embodiment:

[0041] A. One-stage mixing: adjust the roll temperature of the open mill to room temperature, circulate the cooling roll temperature, adjust the roll speed ratio to 1:1.6, and then mix EPDM rubber, calcium stearate, zinc oxide, and TAIC evenly on the open mill ;

[0042] B. Two-stage mixing: set the rotor speed of the internal mixer to 20rpm, and the pressure of the pressure bar to 0.5MPa, put a section of mixed rubber into the internal mixer, mix for 3min, and divide the hydroxymethylated wood into four times Put into the internal mixer and mix for 5 minutes each time, adjust the temperature of the internal mixer to 60°C, add modifier and mix for 30 minutes;

[0043] C. Three-stage mixing: set the intern...

Embodiment 2

[0046] An environment-friendly and wear-resistant EPDM material in this embodiment, the mixing ratio is shown in Table 3.

[0047] table 3

[0048]

[0049]

[0050] The mixing process of the environmental protection wear-resistant EPDM material of this embodiment:

[0051] A. One-stage mixing: adjust the roll temperature of the open mill to room temperature, circulate the cooling roll temperature, adjust the roll speed ratio to 1:1.6, and then mix EPDM rubber, calcium stearate, zinc oxide, and TAIC evenly on the open mill ;

[0052] B. Two-stage mixing: set the rotor speed of the internal mixer to 30rpm, and the pressure of the pressure rod to 0.5MPa, put a section of the mixed rubber into the internal mixer, and mix for 5min, divide the hydroxymethylated wood into four times Put into the internal mixer and mix for 7 minutes each time, adjust the temperature of the internal mixer to 70°C, add modifier and mix for 30 minutes;

[0053] C. Three-stage mixing: set the in...

Embodiment 3

[0056] An environmentally friendly and wear-resistant EPDM material in this embodiment, the mixing ratio is shown in Table 4.

[0057] Table 4

[0058]

[0059] The mixing process of the environmental protection wear-resistant EPDM material of this embodiment:

[0060]A. One-stage mixing: adjust the roll temperature of the open mill to room temperature, circulate the cooling roll temperature, adjust the roll speed ratio to 1:1.6, and then mix EPDM rubber, calcium stearate, zinc oxide, and TAIC evenly on the open mill ;

[0061] B. Two-stage mixing: set the rotor speed of the internal mixer to 30rpm, and the pressure of the pressure rod to 0.5MPa, put a section of the mixed rubber into the internal mixer, and mix for 5min, divide the hydroxymethylated wood into four times Put into the internal mixer and mix for 7 minutes each time, adjust the temperature of the internal mixer to 80°C, add modifier and mix for 30 minutes;

[0062] C. Three-stage mixing: set the internal mi...

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Abstract

The invention belongs to the technical field of rubber materials, and discloses an environment-friendly wear-resistant EPDM material and a preparation method thereof. The environmentally friendly wear-resistant EPDM material is prepared from the following components in parts by weight: 100 parts of EPDM rubber, 30-80 parts of hydroxymethylated lignin, 1-3 parts of calcium stearate, 3-6 parts of zinc oxide, DM 1-3 parts, modifier 2-8 parts, cross-linking agent 1-3 parts, auxiliary cross-linking agent 2-5 parts. The invention uses hydroxymethylated lignin to play the role of nano reinforcement, adds vinyl siloxane to modify, improves the interfacial compatibility of lignin in EPDM and further improves the strength of the composite material. The obtained composite material not only has good tensile strength, but also has excellent wear resistance. The tensile strength and abrasion resistance of the EPDM compound prepared with carbon black N550 are equivalent, and it can replace the use of carbon black N550 in EPDM.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, and in particular relates to an environment-friendly wear-resistant EPDM material and a preparation method thereof. Background technique [0002] In recent years, with the improvement of environmental protection requirements, environmentally friendly rubber materials have become the development trend of the rubber industry. As a natural renewable organic polymer, lignin is second only to cellulose in plants. Industrial lignin is derived from papermaking waste liquid. The hydroxymethylated lignin prepared by formaldehyde-modified lignin is added as a reinforcing filler. The rubber material can not only improve the strength of rubber but also reduce the pollution of papermaking waste liquid. As a reinforcing filler, hydroxymethylated lignin has the problem of uneven nano-dispersion. The usual practice now is to modify it and then dry it to make it nanometer. Lignin is very easy to agglom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L97/00C08K13/02C08K5/098C08K3/22C08K5/47C08K5/5425B29B7/74
Inventor 朱立新李要山陈朝晖
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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