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Modified black-sand rubber material

A technology of rubber material and black sand, 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 flex crack resistance, improving tensile deformation resistance, and reducing production costs

Inactive Publication Date: 2015-09-16
FUYANG ANGU BOILER PRESSURE VESSEL MFG
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  • 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A modified black sand rubber material is characterized in that it is made up of the following raw materials in parts by weight:

[0018] Black sand 7, sodium methylene dinaphthalene sulfonate 1.2, polyethylene powder 10, ethylparaben 10, light calcium carbonate 53, 10% sulfuric acid 0.2-0.6, melamine 30, 37% formaldehyde solution 8, urea 10. Microcrystalline cellulose 10, isopropanol 1.2, maleic anhydride 3, neoprene rubber S40V 230, potassium dihydrogen phosphate 3, sodium carbonate 2, sulfur 3, antioxidant CEA 4.

[0019] A preparation method of modified black sand rubber material, comprising the following steps:

[0020] (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 acid anhydride cellulose;

[0021] (2) Add the above-mentioned sodium meth...

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Abstract

The invention discloses a modified black-sand rubber material composed of the raw materials of, by weight, 0.6-1 part of parachlorometaxylenol, 2-3 parts of ammonium trimolybdate, 47-50 parts of attapulgite, 0.3-0.6 parts of hexamethyl cyclotrisiloxane, 0.2-0.6 parts of 8-10% sulfuric acid, 26-30 parts of melamine, 5-8 parts of a 37% formaldehyde solution, 7-10 parts of urea, 0.7-2 parts of ascorbic acid, 6-10 parts of microcrystalline cellulose, 1-1.2 parts of isopropanol, 3-4 parts of maleic anhydride, 210-230 parts of neoprene S40V, 4-7 parts of vinyl carboxylate, 3-4 parts of an anti-aging agent NBC, and 2-4 parts of sulfur. According to the invention, with the crosslinking effect of maleic anhydride, microcrystalline cellulose forms a closer network structure in melamine resin formed by melamine, urea and formaldehyde, such that resin viscosity and tensile deformation resistance are well improved, and certain reinforcement and tackifying effects are provided in rubber. Therefore, rubber flexural cracking resistance, hot air aging resistance and stability are improved. With added modified black sand, production cost can be effectively reduced, an effect of resource recycling is provided, and rubber toughness and surface strength are effectively improved.

Description

technical field [0001] The invention mainly relates to the field of rubber, in particular to a modified black sand 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 equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L23/06C08L1/02C08K13/02C08K3/26C08K5/3492C08K3/32C08K3/06C08K3/34B29C35/02
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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