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Environment-friendly sulfur-free foaming material as well as preparation method and application of environment-friendly sulfur-free foaming material

A foaming material, an environmentally friendly technology, applied in the field of environmentally friendly sulfur-free foaming materials and its preparation, can solve the problems of poor high temperature resistance and other problems, and achieve the effects of small compression set, excellent heat resistance and aging resistance

Inactive Publication Date: 2013-10-02
GUANGZHOU JUNYIHUI AUTOMOBILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sulfur vulcanization is often used in the prior art, and its high temperature resistance is poor, and the maximum long-term temperature resistance is below 130°C. Using peroxide vulcanization system, the high temperature resistance will be significantly improved

Method used

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  • Environment-friendly sulfur-free foaming material as well as preparation method and application of environment-friendly sulfur-free foaming material
  • Environment-friendly sulfur-free foaming material as well as preparation method and application of environment-friendly sulfur-free foaming material
  • Environment-friendly sulfur-free foaming material as well as preparation method and application of environment-friendly sulfur-free foaming material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: Preparation of an environmentally friendly sulfur-free foaming material

[0047] Put EPDM rubber, carbon black, light calcium carbonate, paraffin oil, stearic acid, etc. into the internal mixer, mix and masticate at 80°C for 20 minutes, and then discharge; after cooling, put it into the open mixer, Add vulcanizing agent, vulcanization accelerator, foaming agent and foaming aid at 80°C, pass through 10-15 times after the foaming agent is completely dispersed, and then release the sheet; put the material into the mold, Vulcanize for 30 minutes under the same conditions, and an environmentally friendly sulfur-free foam material can be obtained.

[0048] Wherein, 100 parts by weight of EPDM rubber, 1.5 parts by weight of vulcanizing agent DCP; 1.5 parts by weight of vulcanization accelerator TAIC; 9.5 parts by weight of foaming agent AC; 5 parts by weight of zinc oxide, a foaming aid; 30 parts by weight of carbon black 80 parts by weight of light calcium carb...

Embodiment 2

[0049] Embodiment 2: Preparation of an environmentally friendly sulfur-free foaming material

[0050] Put EPDM rubber, carbon black, light calcium carbonate, stearic acid, paraffin oil, etc. into the internal mixer, mix and masticate at 90°C for 20 minutes, and then discharge; after cooling, put it into the open mixer, Add vulcanizing agent, vulcanization accelerator, foaming agent and foaming aid at 100°C, pass through 10 to 15 times after the foaming agent is completely dispersed, and release the tablet; pre-vulcanize at 145°C for 15 minutes, Vulcanize for 10 minutes at 170°C to obtain an environmentally friendly sulfur-free foaming material.

[0051] Wherein, 100 parts by weight of EPDM rubber, 2.5 parts by weight of vulcanizing agent DCP; 0.3 parts by weight of vulcanization accelerator TAIC; 15 parts by weight of foaming agent AC; 3 parts by weight of zinc oxide, a foaming aid; 20 parts by weight of carbon black 50 parts by weight of light calcium carbonate; 0.5 parts by...

Embodiment 3

[0052] Example 3: Preparation of an environmentally friendly sulfur-free foaming material

[0053] Put EPDM rubber, carbon black, light calcium carbonate, paraffin oil, stearic acid, etc. into the internal mixer, mix and masticate at 110°C for 5 minutes, and then discharge; after cooling, put it into the open mixer, Add vulcanizing agent, vulcanization accelerator, foaming agent and foaming aid under the condition of 100°C. After the foaming agent is completely dispersed, pass through it 10-15 times, and the sheet is produced; put the material into a 20mm thick mold, Vulcanize for 120 minutes under the condition of ℃, and an environmentally friendly sulfur-free foam material can be obtained.

[0054] Among them, 100 parts by weight of EPDM rubber, 0.5 parts by weight of vulcanizing agent DCP; 3 parts by weight of vulcanization accelerator TAIC; 3 parts by weight of foaming agent 4,4'-bis-sulfonyl hydrazide diphenyl ether; foaming aid 2 parts by weight of zinc oxide; 10 parts ...

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Abstract

The invention belongs to the technical field of foaming material preparation and discloses an environment-friendly sulfur-free foaming material as well as a preparation method and application of the environment-friendly sulfur-free foaming material. The environment-friendly sulfur-free foaming material comprises the following ingredients in parts by weight: 100 parts of ethylene propylene diene rubber, 0.5 to 2.5 parts of vulcanizing agents, 0.3 to 3 parts of vulcanization accelerators, 3 to 15 parts of foaming agents, 1 to 5 parts of foaming auxiliary agents, 0.5 to 100 parts of plasticizers and 20 to 200 parts of reinforcement fillings. The environment-friendly sulfur-free foaming material adopts environment-friendly raw materials and conforms to the environment protection requirement of China; and the vulcanizing agents are used, the materials can form single C-C crosslink bonds, the foaming material with excellent performance is obtained through preparation, excellent heat resistance and ageing resistant performance are realized, the compression permanent deformation is little (12 percent), and the elongation at break (246 percent) is equivalent to that of a sulfur vulcanizing system foaming material.

Description

technical field [0001] The invention belongs to the technical field of foam material preparation, and in particular relates to an environment-friendly sulfur-free foam material and its preparation method and application. Background technique [0002] Rubber foam material has the advantages of low density, light weight, heat insulation and sound insulation. EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated diene, which has superior oxidation resistance, ozone resistance and corrosion resistance. Therefore, the research on EPDM foam materials is in It is widely used in sporting goods, auto parts, building furniture materials, etc., and has great application prospects. Sulfur vulcanization is often used in the prior art, and its high temperature resistance is poor, and the maximum long-term temperature resistance is below 130°C. If the peroxide vulcanization system is used, the high temperature resistance will be significantly improved. At present, the foa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K5/14C08K3/34C08K3/04C08K3/26C08K3/22C08J9/10
Inventor 李超雄陈栋
Owner GUANGZHOU JUNYIHUI AUTOMOBILE TECH
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