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Halogen-free flame retardant foamed EVM (ethylene vinyl acetate copolymer) rubber and manufacturing method thereof

A technology of rubber and flame retardant filler, which is used in the manufacture of halogen-free flame retardant foamed EVM rubber and the field of halogen-free flame retardant foamed EVM rubber, achieving the effects of low volatility, good low temperature flexibility and good dispersibility

Active Publication Date: 2018-02-02
扬州动易运动用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the existing foamed EPDM rubber cannot meet the strict requirements for the use of foamed rubber in the fields of medical treatment, aviation and navigation, high-speed rail, and special shoes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The manufacturing method of the halogen-free flame-retardant foamed EVM rubber of the present invention comprises the following steps in turn: (1) Prepare raw materials according to the following components and weight content: Yihuaping 500PXL ethylene-vinyl acetate rubber: 100 parts, carbon black N774: 10 parts , Dioctyl sebacate: 5 parts, Triisooctyl phosphite: 5 parts, Zinc stearate: 1 part, Dispersant: 1 part, Polyethylene wax: 1 part, Foaming agent HH138: 4 parts , Cross-linking agent BIBP: 2 parts, cross-linking aid TAIC: 1 part, anti-hydrolysis agent P50: 3 parts, protective wax: 1 part, anti-aging agent 445: 1 part, anti-aging agent TMQ: 1 part and flame-retardant filler: 80 parts; the raw material components and weight ratio of the flame retardant filler are aluminum hydroxide: magnesium carbonate: zinc borate = 12:2:1.

[0021] (2) Mixing: After raising the temperature of the internal mixer to 50°C, mix Evapine 500PXL ethylene-vinyl acetate rubber, carbon blac...

Embodiment 2

[0025] The manufacturing method of the halogen-free flame-retardant foamed EVM rubber of the present invention comprises the following steps in turn: (1) Prepare raw materials according to the following components and weight content: Yihuaping 500PXL ethylene-vinyl acetate rubber: 100 parts, carbon black N774: 15 parts , Dioctyl sebacate: 6 parts, Triisooctyl phosphite: 6 parts, Zinc stearate: 1.5 parts, Dispersant: 1.5 parts, Polyethylene wax: 1.5 parts, Foaming agent HH138: 5 parts , Cross-linking agent BIBP: 2.5 parts, cross-linking aid TAIC: 1.5 parts, anti-hydrolysis agent P50: 3 parts, protective wax: 1.5 parts, anti-aging agent 445: 1.5 parts, anti-aging agent TMQ: 1.5 parts and flame-retardant filler: 90 parts; the raw material components and weight ratio of the flame retardant filler are aluminum hydroxide: magnesium carbonate: zinc borate = 14:2:1.

[0026] (2) Mixing: After raising the temperature of the internal mixer to 50°C, mix Evapine 500PXL ethylene-vinyl acet...

Embodiment 3

[0030] The manufacturing method of the halogen-free flame-retardant foamed EVM rubber of the present invention comprises the following steps in turn: (1) Prepare raw materials according to the following components and weight content: Yihuaping 500PXL ethylene-vinyl acetate rubber: 100 parts, carbon black N774: 20 parts , Dioctyl sebacate: 7 parts, Triisooctyl phosphite: 7 parts, Zinc stearate: 2 parts, Dispersant: 2 parts, Polyethylene wax: 2 parts, Foaming agent HH138: 6 parts , Cross-linking agent BIBP: 3 parts, cross-linking aid TAIC: 2 parts, anti-hydrolysis agent P50: 3 parts, protective wax: 2 parts, anti-aging agent 445: 2 parts, anti-aging agent TMQ: 2 parts and flame-retardant filler: 100 parts; the raw material components and weight ratio of the flame retardant filler are aluminum hydroxide: magnesium carbonate: zinc borate = 16:2:1.

[0031] (2) Mixing: After raising the temperature of the internal mixer to 50°C, mix Evapine 500PXL ethylene-vinyl acetate rubber, car...

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Abstract

The invention discloses halogen-free flame retardant foamed EVM (ethylene vinyl acetate copolymer) rubber and a manufacturing method thereof. The rubber is prepared from the following raw materials inparts by weight: 100 parts of EVM 500PXL, 10-20 parts of carbon black N774, 5-7 parts of a plasticizer DOS, 5-7 parts of a plasticizer TOTM, 1-2 parts of zinc stearate, 1-2 parts of a dispersing agent, 1-2 parts of polyethylene wax, 4-6 parts of a foaming agent HH138, 2-3 parts of a cross-linking agent BIBP, 1-2 parts of a cross-linking agent TAIC, 3 parts of an antihydrolysis agent P50, 1-2 parts of preservation wax, 1-2 parts of an anti-aging agent 445, 1-2 parts of an anti-aging agent TMQ and 80-120 parts of flame-retardant fillers. The manufacturing method comprises the following steps: kneading and milling the raw materials, so as to obtain a rubber compound material; feeding the rubber compound material into a pin cold feed extruder, so as to extrude a higher-density preformed film;slicing the preformed film on a conveying belt at a fixed length, so as to obtain a film with the fixed length; performing primary sulfurization foaming on the film with the fixed length with a primary square mould and secondary sulfurization foaming on the film with the fixed length with a secondary square mould; naturally cooling for 10-15 days under a normal temperature, so as to obtain the halogen-free flame retardant foamed EVM rubber. The EVM rubber is strong in toughness, good in heat preservation and good in elasticity and is high-low temperature-resistant, anti-aging, oil-resistant,halogen-free, flame-retardant, environmentally friendly and non-toxic.

Description

technical field [0001] The invention relates to a foamed rubber, in particular to a halogen-free flame-retardant foamed EVM rubber. The invention also relates to a method for manufacturing the halogen-free flame-retardant foamed EVM rubber. Background technique [0002] SBR, EPDM, CR, NBR, NBR / PVC and other foamed rubbers are mainly used in the market at present. These foamed rubbers have certain limitations in performance. For example, although SBR foamed rubber is a general-purpose foamed rubber, it is not resistant to aging. , Not oil-resistant and not flame-retardant; EPDM foam rubber has good aging resistance, but it is not oil-resistant and flame-retardant; CR foam rubber is soft, oil-resistant, aging-resistant and flame-retardant, but it produces toxic and corrosive gases when burned; NBR foam rubber Foam rubber is oil-resistant but not flame-retardant, and has poor aging performance; NBR / PVC foam rubber is oil-resistant and flame-retardant, but it releases toxic and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L91/06C08K13/02C08K3/04C08K5/11C08K3/22C08K3/26C08K3/38C08J9/10
CPCC08J9/0023C08J9/0028C08J9/0038C08J9/0061C08J9/0066C08J9/103C08J2201/03C08J2203/04C08J2323/08C08J2423/06C08J2491/06
Inventor 孙建波郜文卫
Owner 扬州动易运动用品有限公司
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