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Microcrystalline-cellulose-modified rubber material

A technology of microcrystalline cellulose and modified rubber, applied in the rubber field, can solve the problems of poor cold resistance and unstable storage of raw rubber, achieve good anti-oxidation effect, promote compatibility, and improve resistance to flexural cracking 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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Embodiment 1

[0016] A microcrystalline cellulose modified rubber material is characterized in that it is made up of the following raw materials in parts by weight:

[0017] Antiaging agent BPS 4, 8-10% sulfuric acid 0.6, melamine 30, 37% formaldehyde solution 5, urea 7, microcrystalline cellulose 10, isopropanol 1.2, sulfur 3, maleic anhydride 4, neoprene S40V 230, Sodium fluorosilicate 3, montmorillonite powder 26, tetrabutyl titanate 7, carbon black 20, sodium cinnamate 0.4, abietyl alcohol 3, palm wax 4, dimethylaminopropylamine 2.

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

[0019] (1) Add microcrystalline cellulose to twice the amount 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 abietyl alc...

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Abstract

The invention discloses a microcrystalline-cellulose-modified rubber material composed of the following raw materials, by weight: 3-4 parts of an anti-aging agent BPS, 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, 6-10 parts of microcrystalline cellulose, 1-1.2 parts of isopropanol, 2-3 parts of sulfur, 3-4 parts of maleic anhydride, 210-230 parts of neoprene S40V, 3-4 parts of sodium fluosilicate, 20-26 parts of montmorillonite powder, 5-7 parts of tetrabutyl titanate, 20-24 parts of carbon black, 0.4-1 parts of sodium cinnamate, 2-3 parts of abietinol, 2-4 parts of palm wax, and 1-2 parts of dimethylaminopropylamine. According to the invention, microcrystalline cellulose is processed with the crosslinking effect of maleic anhydride, and is blended with abietinol, such that surface viscosity is improved, material compatibility is promoted, and good antioxidant effect is provided. 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 the rubber material. Therefore, flexural cracking resistance, hot-air aging resistance and stability of the rubber material are improved.

Description

technical field [0001] The invention mainly relates to the field of rubber, in particular to a microcrystalline cellulose 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 chemic...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08L61/30C08L1/10C08K13/06C08K3/34C08K5/098C08K3/04C08K5/17
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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