Wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, and preparation method thereof

A technology for firefighting and footwear, applied in soles, applications, footwear, etc., can solve the problems of rubber shoes not durable, low application range, limited flame retardant ability, etc. The effect of flame retardant properties

Inactive Publication Date: 2019-12-20

JIHUA 3537 SHOE MAKING

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AI-Extracted Technical Summary

Problems solved by technology

However, inorganic materials such as antimony trioxide and aluminum hydroxide are used as flame retardants. Due to their limited flame retardant ability, they need to be used in large quantities in the formula, which leads to a significant decline in the...

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Abstract

The invention discloses a wear-resistant flame-retardant sole rubber for forest fire-fighting shoes. According to the present invention, natural rubber, butadiene-styrene rubber and cis-1,4-polybutadiene rubber are used as main materials, the physical properties of the rubber material are ensured by adding a reinforcing filler and a softener, the service life of the rubber sole is ensured, and theexcellent flame retardancy is provided for the product by adopting efficient flame retardants decabromodiphenyl ether, chlorinated paraffin, zinc borate and antimony oxide as a flame retardant system; a carbon layer is generated during combustion so as to adsorb molten and ignited polymers, liquid drops can be prevented from transferring fire disaster, the defect that the conventional NR+SBR+BR rubber compound is extremely easily combusted is overcome, the flame retardant level can reach the UL94V-0 level, and the self-extinguishing requirement is met in a vertical combustion test; and the product has characteristics of simple preparation method, low cost and good use effect, and can completely meet the use requirements of forest firefighters.

Application Domain

Soles

Technology Topic

Antimony oxideButadiene-styrene rubber +15

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Examples

Experimental program(3)

Example Embodiment

[0057] Embodiment 1 of the present invention: wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, calculated in parts by weight, it includes 50 parts of 2# standard glue, 50 parts of synthetic rubber (using butadiene rubber), 2 parts of sulfur, 3.5 parts Part accelerator (3.5 parts of accelerator is composed of 0.8 parts of accelerator DM, 2.3 parts of accelerator CBS and 0.4 part of accelerator D), 9 parts of vulcanization activator (every 9 parts of vulcanization activator is 3 parts of tertiary stearic acid And 5 parts of nano zinc oxide, 1 part of light magnesium oxide), 0.6 parts of release agent, 72 parts of carbon black, 16 parts of softener (every 16 parts of softener consists of 11 parts of dibutyl phthalate and 5 parts solid coumarone), 65 parts of mixed flame retardant (each 65 parts of mixed flame retardant consists of 20 parts of decabromodiphenyl ether and 10 parts of antimony oxide, 20 parts of chlorinated paraffin (-70), 15 parts of zinc borate ) and 1.5 parts of antioxidant.

[0058] The preparation method of wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, 40 parts of natural rubber, 40 parts of butadiene rubber, 1.6 parts of stearic acid, N220 carbon black and solid coumarone are added to the internal mixer, and the rubber is pressed After 4 to 5 minutes, when the current load of the rubber mixer drops to 220A, lift the top bolt to scrape the rubber, send the overflowing material from the mixer mouth into the mixing room, and scrape it off within 15 to 25 seconds, and then Add 6 parts of dibutyl phthalate within 30 seconds, put the top bolt back in place, and continue to press. After the rubber mixer is loaded, continue to press for 3.5 to 4 minutes, so that the load of the rubber mixer rises to above 160A Discharging to get the masterbatch;

[0059] After the masterbatch is parked for 12 hours, put it into the internal mixer together with 10 parts of natural rubber, 10 parts of butadiene rubber and medium material. After pressing for 50-65 seconds, put in the mixed flame retardant, and then press for 3-65 seconds. Lift the top bolt and scrape the rubber for 5 minutes, and then press for 2 minutes. When the inside of the internal mixer produces a fluttering sound due to the friction of the rubber material, add 5 parts of dibutyl phthalate, and mix the rubber until the load reaches 200A. Discharge for 1 minute, add sulfur to the discharged rubber material on the open rubber mixer, and knead evenly to get the finished product.

Example Embodiment

[0060] Embodiment 2 of the present invention: wear-resistant type flame-retardant sole rubber for forest fire-fighting shoes, calculated by weight, it includes 55 parts of 2# standard glue, 45 parts of synthetic glue (using butadiene rubber), 2 parts of sulfur, 3.5 parts Part accelerator (3.5 parts of accelerator is composed of 0.8 parts of accelerator DM, 2.3 parts of accelerator CBS and 0.4 part of accelerator D), 8.5 parts of vulcanization activator (every 8.5 parts of vulcanization activator is 3 parts of tertiary stearic acid And 4.5 parts of nano-zinc oxide, 1 part of light magnesium oxide), 0.6 part of release agent, 71 parts of N220 carbon black, 16 parts of softener (every 16 parts of softener consists of 11 parts of dibutyl phthalate and 5 65 parts of mixed flame retardant (each 65 parts of mixed flame retardant consists of 20 parts of decabromodiphenyl ether and 10 parts of antimony oxide, 20 parts of chlorinated paraffin (-70), 15 parts of zinc borate composition), 1.2 parts of antioxidant.

[0061] The preparation method of wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, 40 parts of natural rubber, 40 parts of butadiene rubber, 1.6 parts of stearic acid, N220 carbon black and solid coumarone are added to the internal mixer, and the rubber is pressed After 4 to 5 minutes, when the current load of the rubber mixer drops to 220A, lift the top bolt to scrape the rubber, send the overflowing material from the mixer mouth into the mixing room, and scrape it off within 15 to 25 seconds, and then Add 6 parts of dibutyl phthalate within 30 seconds, put the top bolt back in place, and continue to press. After the rubber mixer is loaded, continue to press for 3.5 to 4 minutes, so that the load of the rubber mixer rises to above 160A Discharging to get the masterbatch;

[0062] After the masterbatch is parked for 12 hours, put it into the internal mixer together with 15 parts of natural rubber, 5 parts of butadiene rubber and middle material. After pressing for 50-65 seconds, put in the mixed flame retardant, and then press for 3-65 seconds. Lift the top bolt and scrape the rubber for 5 minutes, and then press for 2 minutes. When the inside of the internal mixer produces a fluttering sound due to the friction of the rubber material, add 5 parts of dibutyl phthalate, and mix the rubber until the load reaches 200A. Discharge for 1 minute, add sulfur to the discharged rubber material on the open rubber mixer, and knead evenly to get the finished product.

Example Embodiment

[0063] Embodiment 3 of the present invention: forest fire-fighting shoes wear-resistant type flame-retardant sole rubber, calculated in parts by weight, it includes 52 parts of 2# standard glue, 48 parts of synthetic rubber (using butadiene rubber), 2 parts of sulfur, 3.5 parts Part accelerator (3.5 parts of accelerator is composed of 0.8 parts of accelerator DM, 2.3 parts of accelerator CBS and 0.4 parts of accelerator D), 8.0 parts of vulcanization activator (every 8.5 parts of vulcanization activator is 2.5 parts of tertiary stearic acid And 4.5 parts of nano-zinc oxide, 1 part of light magnesium oxide), 0.6 part of release agent, 73 parts of N220 carbon black, 16 parts of softener (every 16 parts of softener consists of 11 parts of dibutyl phthalate and 5 65 parts of mixed flame retardant (each 65 parts of mixed flame retardant consists of 20 parts of decabromodiphenyl ether and 10 parts of antimony oxide, 20 parts of chlorinated paraffin (-70), 15 parts of zinc borate composition), 1.2 parts of antioxidant.

[0064] The preparation method of wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, 40 parts of natural rubber, 40 parts of butadiene rubber, 1.6 parts of stearic acid, N220 carbon black and solid coumarone are added to the internal mixer, and the rubber is pressed After 4 to 5 minutes, when the current load of the rubber mixer drops to 220A, lift the top bolt to scrape the rubber, send the overflowing material from the mixer mouth into the mixing room, and scrape it off within 15 to 25 seconds, and then Add 6 parts of dibutyl phthalate within 30 seconds, put the top bolt back in place, and continue to press. After the rubber mixer is loaded, continue to press for 3.5 to 4 minutes, so that the load of the rubber mixer rises to above 160A Discharging to get the masterbatch;

[0065] After the masterbatch is parked for 12 hours, put it into the internal mixer together with 12 parts of natural rubber, 8 parts of butadiene rubber and middle material. After pressing for 50-65 seconds, put in the mixed flame retardant, and then press for 3-65 seconds. Lift the top bolt and scrape the rubber for 5 minutes, and then press for 2 minutes. When the inside of the internal mixer produces a fluttering sound due to the friction of the rubber material, add 5 parts of dibutyl phthalate, and mix the rubber until the load reaches 200A. Discharge for 1 minute, add sulfur to the discharged rubber material on the open rubber mixer, and knead evenly to get the finished product.

[0066] Flame retardancy (width 20X thickness 7mm): After two 10-second combustions, it is extinguished from the fire, and the smoke extinguishment time is less than 45 seconds, which meets the requirements.

[0067] 0.85MPaX4'00"+ mixed steam performance for 30 minutes (170g/piece with glue 99-225 mold (smoke-free time 45 seconds, no combustibles falling=V1)

[0068] The flame retardant V0 level of this rubber, performance: After vulcanizing the outsole with the flat mold of rubber mixing today, the surface is completely white when it is in contact with tap water, but after vulcanization with mixed steam, the hoarfrost recedes. The outsole rubber block that has receded from the hoarfrost was in contact with drinking water again, and no hoarfrost was produced.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Guaranteed service life
Good flame retardant performance

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Simple method Low cost Good effect Rubber material Polymer Polymer science Fire - disasters Physical property Wear resistant

Wear-resistant flame-retardant sole rubber for forest fire-fighting shoes, and preparation method thereof

A technology for firefighting and footwear, applied in soles, applications, footwear, etc., can solve the problems of rubber shoes not durable, low application range, limited flame retardant ability, etc. The effect of flame retardant properties

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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