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Melamine resin modified rubber material

A technology of melamine and modified rubber, which is applied in the field of rubber, can solve the problems of unstable storage and poor cold resistance of raw rubber, and achieve the effects of improving viscosity and resistance to tensile deformation, promoting crosslinking effect, and improving bond strength Effect

Inactive Publication Date: 2015-09-16
FUYANG ANGU BOILER PRESSURE VESSEL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of chloroprene rubber are electrical insulation performance, poor cold resistance, and raw rubber is unstable during storage.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of melamine resin modified rubber material is characterized in that it is made up of the raw material of following weight part:

[0017] p-chloro-m-dimethylphenol 0.6, ammonium trimolybdate 2, attapulgite 50, hexamethylcyclotrisiloxane 0.3, 8-10% sulfuric acid 0.6, melamine 30, 37% formaldehyde solution 5, urea 10, Ascorbic acid 0.7, microcrystalline cellulose 10, isopropanol 1.2, maleic anhydride 4, neoprene S40V 230, vinyl carboxylate 7, antioxidant NBC4, sulfur 4.

[0018] A preparation method of melamine resin modified rubber material, comprising the following steps:

[0019] (1) Add microcrystalline cellulose to 3 times of water, add isopropanol and maleic anhydride, stir evenly, add 10% sulfuric acid, react in a water bath at 60°C for 7 hours, adjust the pH to neutral, evaporate under reduced pressure Water and isopropanol are removed to obtain anhydride cellulose;

[0020] (2) Mix the above-mentioned vinyl carboxylate and ammonium trimolybdate, add hexam...

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Abstract

The invention discloses a melamine resin modified rubber material. The material is composed of the following raw materials by weight: 0.6 to 1 part of chloroxylenol, 2 to 3 parts of ammonium trimolybdate, 47 to 50 parts of attapulgite, 0.3 to 0.6 part of hexamethylcyclotrisiloxane, 0.2 to 0.6 part of sulfuric acid with a concentration of 8 to 10%, 26 to 30 parts of melamine, 5 to 8 parts of a formaldehyde solution with a concentration of 37%, 7 to 10 parts of urea, 0.7 to 2 parts of ascorbic acid, 6 to 10 parts of microcrystalline cellulose, 1 to 1.2 part of isopropanol, 3 to 4 parts of maleic anhydride, 210 to 230 parts of chloroprene rubber S40V, 4 to 7 parts of vinyl carboxylic ester, 3 to 4 parts of an antioxidant NBC and 2 to 4 parts of sulphur. According to the invention, the microcrystalline cellulose, through crosslinking effect of maleic anhydride, forms a closer network structure in the melamine resin formed by melamine, urea and formaldehyde, wherein added alkylated ester can effectively promote the crosslinking effect and improve bonding strength, well enhances viscosity and tensile deformation resistant property of resin, exerts certain reinforcing and viscosifying effects to a rubber material, and improves flexure and cracking resistance, hot air aging property and stability.

Description

technical field [0001] The invention mainly relates to the field of rubber, in particular to a melamine resin modified rubber material. Background technique [0002] Chloroprene rubber is made of chloroprene as the main raw material through homopolymerization or copolymerization of a small amount of other monomers. Such as high tensile strength, excellent heat resistance, light resistance, aging resistance, and oil resistance are superior to natural rubber, styrene-butadiene rubber, and butadiene rubber. It has strong flame resistance and excellent flame retardancy resistance, high chemical stability and good water resistance. The disadvantage of chloroprene rubber is that it has poor electrical insulation performance and cold resistance, and the raw rubber is unstable during storage. Neoprene is widely used, such as used to make conveyor belts and transmission belts, sheathing materials for wires and cables, to make oil-resistant hoses, gaskets, and chemical-resistant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L61/30C08L1/10C08K13/06C08K3/34C08K5/136C08K3/06C08K5/1535
Inventor 傅贵轩陈子育赵志刚刘云飞付丽丽张涛刘长征葛哲骏
Owner FUYANG ANGU BOILER PRESSURE VESSEL MFG
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