Environmentally-friendly ultralight flame-retardant rubber sole material and manufacturing method thereof

A technology for flame retardant rubber and sole material, which is applied in the field of environment-friendly ultra-light flame retardant rubber sole material and its manufacturing field, and can solve the problems of poor flame retardant performance, heavy sole, and poor storage stability of neoprene rubber.

Inactive Publication Date: 2013-05-15
CHINA LEATHER & FOOTWEAR IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the soles of high-temperature-resistant work boots on the market have the following disadvantages: ① The storage stability of the base material neoprene is poor, and it is easy to crystallize and harden at low temperatures
However, the foamed material prepared in this patent with ex

Method used

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  • Environmentally-friendly ultralight flame-retardant rubber sole material and manufacturing method thereof
  • Environmentally-friendly ultralight flame-retardant rubber sole material and manufacturing method thereof
  • Environmentally-friendly ultralight flame-retardant rubber sole material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The composition (mass ratio) is: 100 parts of CSM, 10 parts of white carbon black, 3.0 parts of PEG, 5.0 parts of TOTM, 5.0 parts of magnesium oxide, 0.5 parts of TAIC, 2.0 parts of pentaerythritol, 1.0 parts of zinc stearate, and 2.0 parts of sulfur 1.0 part of anti-aging agent NBC, 0.5 part of microcrystalline wax.

[0022] Weigh according to the above ratio, mix according to the above process, and test the process positive vulcanization time t of the mixed rubber at 160°C by a oscillating disc type rotorless vulcanizer. 90 for 540s, and then molded at 160°C. After the molded sample was placed at room temperature (around 25°C) for 24 hours, its relative density was measured to be 1.244g / cm 3 , hardness (Shao C) 69.4; according to GB / T1040 test its tensile strength is 26.48MPa, elongation at break is 558%; according to GB / T3903.12-2005 test the right-angle tear strength of vulcanized rubber is 59.4N / mm .

Embodiment 2

[0024] The composition (mass ratio) is: 100 parts of CSM, 10 parts of white carbon black, 10 parts of AC, 8 parts of sodium bicarbonate, 3.0 parts of PEG, 5.0 parts of TOTM, 5.0 parts of magnesium oxide, 0.5 parts of TAIC, 2.0 parts of pentaerythritol, hard 1.0 parts of zinc fatty acid, 2.0 parts of sulfur, 1.0 parts of anti-aging agent NBC, 0.5 parts of microcrystalline wax.

[0025] Weigh according to the above ratio, mix according to the above process, and test the process positive vulcanization time t of the mixed rubber at 160°C by a oscillating disc type rotorless vulcanizer. 90 It is 403s, and then molded at 160°C. After the molded sample was placed at room temperature (around 25°C) for 24 hours, its relative density was measured to be 0.443g / cm 3 , hardness (Shao C) 43.8; according to GB / T1040 test its tensile strength is 6.0MPa, elongation at break is 465%; according to GB / T3903.12-2005 test the right-angle tear strength of vulcanized rubber is 15.4N / mm .

Embodiment 3

[0027] The composition (mass ratio) is: 100 parts of CSM, 10 parts of white carbon black, 10 parts of AC, 12 parts of sodium bicarbonate, 3.0 parts of PEG, 5.0 parts of TOTM, 5.0 parts of magnesium oxide, 0.5 parts of TAIC, 2.0 parts of pentaerythritol, hard 1.0 part of zinc fatty acid, 2 parts of sulfur, 1.0 part of anti-aging agent NBC, 0.5 part of microcrystalline wax.

[0028] Weigh according to the above ratio, mix according to the above process, and test the process positive vulcanization time t of the mixed rubber at 160°C by a oscillating disc type rotorless vulcanizer. 90 for 420s, and then molded at 160°C. After the molded sample was placed at room temperature (around 25°C) for 24 hours, its relative density was measured to be 0.379g / cm 3 , hardness (Shore C) 35.0; according to GB / T1040, the tensile strength is 5.0MPa, and the elongation at break is 488%; according to GB / T3903.12-2005, the right-angle tear strength of the vulcanized rubber is 12.7N / mm . The open p...

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Abstract

The invention relates to an environmentally-friendly ultralight flame-retardant rubber sole material and a manufacturing method thereof, and particularly relates to a manufacturing method of footwear product soles with high requirements on light weight and flame retardant property. The environmentally-friendly ultralight flame-retardant rubber sole material comprises chlorosulfonated polyethylene rubbers, a reinforcing agent, an active agent, a plasticizer, a foaming agent, a synergistic foaming agent, a flame retardant, a synergistic flame retardant, a vulcanizing agent and a vulcanization accelerator. According to the invention, through the screening and optimization of a series of formulas of the reinforcing agent, the plasticizer, the vulcanizing agent, the foaming agent, the synergistic foaming agent and the synergistic flame retardant, an ultralight flame-retardant sole material with a relative density of 0.3-0.5 g/cm3 is prepared, wherein in a flame retardant property test, the limit oxygen index of the sole material is greater than or equal to 34.5%, and the UL-94 reaches level V-a. The material has the following advantages: soles are lighter in weight and excellent in flame retardant property, and abandoned soles do not release toxic nitrosamine, polybrominated dibenzo-p-dioxins (PBDD) and polybrominated diphenyl furans (PBDF) in the process of burning.

Description

(1) Technical field [0001] The invention relates to an environment-friendly ultra-light flame-retardant rubber sole material and a manufacturing method thereof. This material is suitable for footwear products with high requirements on light weight and flame retardancy. (2) Background technology [0002] At present, the soles of high-temperature-resistant work boots on the market have the following disadvantages: ① The storage stability of the base material neoprene is poor, and it is easy to crystallize and harden at low temperatures. The storage period of raw rubber is short, half a year to one year, which is not conducive to preservation; ②The sole is heavy and hard, and the relative density is as high as 1.2-1.4g / cm 3 , prone to foot fatigue; ③The flame retardants used are decabromodiphenyl ether and antimony trioxide, which are prone to carcinogenic polybrominated phenyl-para-dioxin (PBDD) and polybrominated diphenylfuran under high temperature and combustion conditions...

Claims

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Application Information

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IPC IPC(8): C08L23/34A43B13/04C08J9/10C08J9/08C08K13/02C08K5/098C08K3/36C08K5/06C08K5/053C08K5/03C08K13/06C08K9/10C08K3/02C08K3/22C08K3/38C08K5/11C08K5/12C08K3/06C08K5/14C08K5/3492C08K5/47C08K5/31C08K5/40B29B7/72
Inventor 常素芹王卫婷
Owner CHINA LEATHER & FOOTWEAR IND RES INST
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