Acrylonitrile-butadiene rubber and phenolic resin blended foamed sponge and preparation method thereof

A technology of foaming sponge and nitrile rubber is applied in the field of blending foaming sponge of nitrile rubber and phenolic resin and its preparation, which can solve the problems of escape personnel hazards, toxic HCL and CI2 gas, etc.

Inactive Publication Date: 2015-11-25
陈玉龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a fire, because the NBR/PVC blend contains a large amount of halogen, it will produce a lar...

Method used

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  • Acrylonitrile-butadiene rubber and phenolic resin blended foamed sponge and preparation method thereof
  • Acrylonitrile-butadiene rubber and phenolic resin blended foamed sponge and preparation method thereof
  • Acrylonitrile-butadiene rubber and phenolic resin blended foamed sponge and preparation method thereof

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Experimental program
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Embodiment Construction

[0023] A preparation method of nitrile rubber and phenolic resin blended foamed sponge, which specifically comprises:

[0024] Step 1: Prepare high-temperature rubber compound, the specific composition ratio is as follows:

[0025]

[0026]

[0027] The above components are respectively put into the kneader for pressurized kneading and blending. When the temperature reaches 151°C, the materials are turned into the kneading mechanism to obtain high-temperature compounded rubber tablets;

[0028] Step 2: Prepare molding compound rubber, the specific component ratio is as follows:

[0029]

[0030] The above components are respectively put into the kneader and kneaded for 2.5 minutes under pressure, and the output material is pressed into the kneading machine to form a molded mixing rubber strip, which is blown to cool for later use;

[0031] Step 3: Extrude, vulcanize and foam to obtain a foamed sponge; specifically include the following process steps:

[0032] 1) Fee...

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PUM

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Abstract

The invention discloses a preparation method for acrylonitrile-butadiene rubber and phenolic resin blended foamed sponge. According to the method, acrylonitrile-butadiene rubber with medium/high acrylonitrile content and linear phenolic resin are blended, and phenolic resin is used to modify acrylonitrile-butadiene rubber; semi-reinforcing carbon black N550 is employed for reinforcing the blended rubber, a plasticizer employs di-n-octyl phthalate and liquid coumarone resin, a curing agent of phenolic resin employs hexamethylene tetramine, a filling agent employs aluminium hydroxide and talcum powder, and thus cost is reduced and the flame resistance of the blended rubber is improved. A sulfuration system employs a sulfur sulfuration system, and a foaming agent employs azodicarbonamide (ADC). A sulfuration and foaming synchronous technology is employed for production.

Description

technical field [0001] The invention relates to a foamed sponge blended with nitrile rubber and phenolic resin and a preparation method thereof. Background technique [0002] NBR / PVC (butadiene rubber polyvinyl chloride) blended foam sponge is widely used in the insulation of refrigeration units, chilled water pipes, condensate pipes and air pipes, urban heating hot water pipes, and tap water pipes in central air-conditioning systems. In a fire, since the NBR / PVC blend contains a large amount of halogen, it will produce a large amount of toxic HCL and CI2 gases, which will cause serious potential hazards to the escapees in the fire. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a kind of butadiene rubber and phenolic resin blended foamed sponge and preparation method thereof, what the present invention adopts is butadiene rubber and phenolic resin (NBR / PF) blended foamed sponge , The product does...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L61/06C08L45/02C08K13/02C08K3/04C08K5/12C08K3/22C08K3/34C08K3/06C08J9/10B29C35/02
Inventor 陈玉龙
Owner 陈玉龙
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