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A kind of Tianjia rubber and natural rubber composite material and preparation method thereof

A technology for natural rubber and composite materials, which is applied in the field of Tianjia rubber and natural rubber composite materials and their preparation, can solve the problems of high price, rising production cost, not very systematic, etc., and achieves improved mechanical properties, low rolling resistance, low The effect of thermogenesis and

Active Publication Date: 2021-03-19
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research in this area is not very systematic. The compatibilization mechanism of ENR as a compatibilizer needs further research.
In addition, ENR is expensive, leading to higher production costs and inhibiting its application in the tire industry

Method used

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  • A kind of Tianjia rubber and natural rubber composite material and preparation method thereof
  • A kind of Tianjia rubber and natural rubber composite material and preparation method thereof
  • A kind of Tianjia rubber and natural rubber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of Tianjia rubber and natural rubber composite material, comprising the steps of:

[0029] (1) First take by weighing 100 parts by weight of natural rubber latex, add water to dilute to a mass concentration of 20%, stir evenly, add 0.4 parts by weight of oleic acid amine while stirring, then add 0.2 parts by weight of tetraethylenepentamine, configure into a latex mixture.

[0030] (2) Weigh 30 parts by weight of methyl methacrylate monomer, add it into the above-mentioned latex mixture, stir and disperse.

[0031] (3) When the latex mixed solution after adding the methyl methacrylate monomer is heated to 50 DEG C in a water bath, 0.5 parts by weight of tert-butyl hydroperoxide is added dropwise, and the water bath is reacted at a constant temperature of 60 DEG C for 6 hours to obtain the Tianjia rubber emulsion; Add 100 parts by weight of natural rubber latex to the Tianjia rubber emulsion, add water to dilute to form an emulsion with a mass conce...

Embodiment 2

[0037] The specific preparation method is basically the same as that of Example 1, except that the mass concentration of latex is kept at 30%.

Embodiment 3

[0039] The specific preparation method is basically the same as that of Example 2, except that the mass concentration of latex is kept at 40%.

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Abstract

The invention relates to the technical field of natural rubber composite materials, in particular to a methyl methacrylate grafted natural rubber and natural rubber composite material and a preparation method thereof. The preparation method comprises the following steps that (1), natural latex is firstly weighed, water is added for dilution, the mixture is uniformly stirred, in the stirring process, a surface active agent is added, and then tetraethylenepentamine is added to prepare latex mixed liquid; (2), methyl methacrylate monomers are added; (3), the latex mixed liquid is heated to 40-60DEG C in water bath, an initiating agent is dropwise added, and the reactor is conducted at the constant temperature for 3-7 hours to obtain methyl methacrylate grafted natural rubber latex; natural rubber latex is added into the methyl methacrylate grafted natural rubber latex, then heating or souring solidification is conducted, and methyl methacrylate grafted natural rubber / natural rubber mixedrubber is obtained; (4), the mixed rubber, natural rubber, silicon dioxide, carbon black and other addition agents are weighed and mixed, the mechanical drying method mixing technology is adopted forvulcanization, and the methyl methacrylate grafted natural rubber and natural rubber composite material is obtained. The prepared composite material has good processing performance and mechanical performance.

Description

technical field [0001] The invention relates to the technical field of natural rubber composite materials, in particular to a Tianjia rubber and natural rubber composite material and a preparation method thereof. Background technique [0002] Natural rubber (NR) is widely used in tire tread rubber, especially in the field of OTR tires, due to its wide molecular weight distribution, good processability and excellent mechanical properties. Rubber products must be efficiently reinforced by fillers before they can be used. Since the 20th century, carbon black (CB) has been the most important reinforcing agent for rubber products. 90-95% of the world's CB consumption is used in the rubber industry, and tires account for 67.5%. However, with the increasingly prominent energy and environmental crisis, the high price of carbon black and the high environmental pollution caused by the processing process have led to the development of non-carbon black fillers, especially inorganic fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L51/04C08L7/02C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09C08F279/00C08F220/14
CPCC08F279/00C08K2003/2296C08K2201/011C08L7/00C08L2205/025C08L2205/03C08L51/04C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09C08F220/14
Inventor 吕臻姚翔彭华龙李海罗勇悦
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI