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Preparation method of rubber reinforcing agent, automobile plate spring bushing sizing material containing rubber reinforcing agent and preparation method thereof

A technology of rubber reinforcing agent and automobile plate, applied in the rubber field, can solve the problems of low connection strength and few active groups, and achieve the effects of low cost, enhanced strength, improved mechanical properties and wear resistance

Inactive Publication Date: 2020-11-13
SUINING SENDI AUTO PARTS MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for preparing a rubber reinforcing agent, which is used to solve the technical problems of less active groups and low connection strength in the current carbonized rice husk added to the rubber, so as to improve the relationship between the rubber reinforcing agent and the rubber. High connection strength, high degree of activation, good dispersion technical effect

Method used

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  • Preparation method of rubber reinforcing agent, automobile plate spring bushing sizing material containing rubber reinforcing agent and preparation method thereof

Examples

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preparation example Construction

[0028] First, the invention provides a kind of preparation method of rubber reinforcing agent, comprises the steps:

[0029] S1 pickling and pulverizing the rice husk;

[0030] S2 mixes the crushed rice husk in S1 with humic acid and an aqueous ethanol solution, and then puts it into the reactor for reaction to obtain the first intermediate;

[0031] In S3, the first intermediate in S2 is fired; after firing, it is pulverized and ground to obtain a finished product.

[0032] In the present invention, the technological parameter of pickling is, rice husk is put into the HCl solution that mass fraction is 10%, the mass ratio of rice husk and HCl solution is 1:8~15, is preferably 1:8~10, further Preferably 1:10; ultrasonic treatment for 20min-40min, preferably 20min-30min; after ultrasonic treatment, filter, wash until neutral, and then dry.

[0033] In the present invention, a pulverizer is used to pulverize to a size of 1 mm to 10 mm.

[0034] In the present invention, in th...

Embodiment 1

[0060] A kind of rubber reinforcing agent, its preparation method, comprises the steps:

[0061] S1 Put rice husks into HCl solution with a mass fraction of 10%, and the mass ratio of rice husks to HCl solution is 1:10; filter after ultrasonic treatment for 30 minutes, wash to neutrality, and then dry; The rice husk is crushed to 1mm ~ 10mm;

[0062] S2 Mix the crushed rice husk with humic acid and ethanol aqueous solution, and add it into the reactor to react to obtain the first intermediate; the reaction temperature is 100°C, and the reaction time is 20min; the mass ratio of ethanol to water in the ethanol aqueous solution is 3 :1; the mass ratio of rice husk, humic acid, and aqueous ethanol solution is 5:5:10;

[0063] S3 The first intermediate is fired, first at low temperature and then at high temperature. The low temperature firing temperature is 375°C, the low temperature time is 2h, the high temperature firing temperature is 600°C, and the high temperature time is 0.5...

Embodiment 2

[0065] The difference between this example and Example 1 is that the mass ratio of rice husk, humic acid, and aqueous ethanol is 5:3:12.

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Abstract

The invention relates to the technical field of rubber, and discloses a preparation method of a rubber reinforcing agent. The preparation method comprises the following steps: carrying out acid washing and crushing on rice husk; mixing the crushed rice husks with humic acid and an ethanol aqueous solution, and adding the mixture into a reactor for reaction to obtain a first intermediate; firing the first intermediate; and after firing, crushing and grinding to obtain a finished product. The invention discloses an automobile plate spring bushing rubber material containing the rubber reinforcingagent and a preparation process thereof. The rice husk and humic acid are grafted to form the copolymer so that the adsorption performance and active groups in the copolymer can be improved, and meanwhile, the strength of the copolymer can be enhanced through carbonization treatment; when the copolymer is used as a rubber reinforcing agent, the mechanical property and the wear resistance of rubber can be improved.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a preparation method of a rubber reinforcing agent, an automobile leaf spring bush rubber containing the same and a preparation method thereof. Background technique [0002] Automobile leaf spring is the most traditional elastic element in automobile suspension system. It is widely used because of its good reliability, simple structure, short manufacturing process, low cost and greatly simplified structure. [0003] Bushing compounds used in automotive leaf springs require properties such as wear resistance, high toughness, and high strength. The bushing compound is mainly made of rubber as an elastic body. In order to improve the service life and processing convenience of the bushing compound, reinforcing fillers are often added. There are many types of reinforcing fillers, such as carbon black, white carbon black, kaolin, bentonite, nano-calcium carbonate, clay, lig...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08L97/02C08L97/00C08K13/04C08K7/24C08K7/26C08K3/06C08K3/22C08K3/04C08K5/09C08H8/00
CPCC08L7/00C08H8/00C08L97/02C08L97/005C08K7/24C08K7/26C08K2003/2296C08L2205/035C08L2205/02
Inventor 唐霞
Owner SUINING SENDI AUTO PARTS MFG CO LTD
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