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Preparation method of wide-temperature-region type rubber damping material

A technology of damping materials and wide temperature range, which is applied in the field of rubber materials, can solve the problems of damping performance degradation, easy migration, high price, etc., and achieve the effect of improving damping wide range, wide damping temperature range and improving damping performance

Inactive Publication Date: 2018-03-16
常州明华运输有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to address the disadvantages of the existing improved and prepared wide-temperature range materials, such as expensive raw materials, easy crystallization of small-molecule damping agents, easy migration out, phase separation, and serious decline in damping performance after long-term use, and the like. Due to its low physical and mechanical properties and limited application, a preparation method of wide temperature range rubber damping material is provided

Method used

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  • Preparation method of wide-temperature-region type rubber damping material

Examples

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Effect test

example 1

[0021] In terms of parts by weight, weigh 12 parts of Eucommia leaves, 7 parts of Panax notoginseng leaves, and 47 parts of asparagus asparagus, stir and mix them, and vacuum freeze-dry them for 4 hours to obtain a dried product and grind it through an 80-mesh sieve to obtain a ground powder. 1:3, stir and mix the grinding powder and 15% sodium carbonate solution by mass fraction, heat to boiling and heat preservation for 2 hours, let it stand and cool to room temperature, filter to obtain the filtrate, and rotary evaporate at 67°C to 1 / 3 of the volume of the filtrate. The concentrated solution was obtained, and the concentrated solution was mixed with absolute ethanol at a volume ratio of 1:5. After standing and aging for h, the filter cake was filtered and collected, and dried at 67°C for 7 hours to prepare dry agar gel; in parts by weight Count, weigh 47 parts of deionized water, 12 parts of dry agar, and 4 parts of diethylaminoethyl cellulose respectively in a flask, stir a...

example 2

[0023] In terms of parts by weight, weigh 10 parts of Eucommia leaves, 5 parts of Panax notoginseng leaves, and 45 parts of asparagus asparagus, stir and mix them, and vacuum freeze-dry them for 3 hours. 1:3, stir and mix the grinding powder with 15% sodium carbonate solution by mass fraction, heat to boil and then heat-preserve for 1h, let it stand and cool to room temperature, filter to obtain the filtrate, and rotary evaporate at 65°C to 1 / 3 of the volume of the filtrate. The concentrated solution was obtained and the concentrated solution was mixed with absolute ethanol at a volume ratio of 1:5. After standing and aging for 6 hours, the filter cake was filtered and collected, and dried at 65°C for 6 hours to prepare dry agar; in parts by weight Count, weigh 45 parts of deionized water, 10 parts of dry agar, and 3 parts of diethylaminoethyl cellulose, respectively, and place them in a flask, stir and mix and ultrasonically disperse to obtain a dispersion and heat it in a wat...

example 3

[0025] In terms of parts by weight, weigh 15 parts of Eucommia leaves, 8 parts of Panax notoginseng leaves, and 50 parts of asparagus asparagus, stir and mix them, and vacuum freeze-dry them for 5 hours. 1:3, stir and mix the grinding powder and 15% sodium carbonate solution by mass fraction, heat to boiling and heat preservation for 2 hours, let it stand and cool to room temperature, filter to obtain the filtrate, and rotary evaporate at 70°C to 1 / 3 of the volume of the filtrate. The concentrated solution was obtained, and the concentrated solution was mixed with absolute ethanol at a volume ratio of 1:5. After standing and aging for h, the filter cake was filtered and collected, and dried at 70°C for 8 hours to prepare dry agar; in parts by weight Count, weigh 50 parts of deionized water, 15 parts of dry agar and 5 parts of diethylaminoethyl cellulose respectively in a flask, stir and mix and ultrasonically disperse to obtain a dispersion and heat it in a water bath at 85°C. ...

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Abstract

The invention relates to a preparation method of a wide-temperature-region type rubber damping material, and belongs to the technical field of rubber materials. The preparation method comprises the following steps: extracting folium cortex eucommiae and notoginseng leaves in a mixed manner and compounding the extracted folium cortex eucommiae and notoginseng leaves with gracilaria lemaneiformis; collecting extract jello; and preparing a modified cross-linked gel material by extracting a large amount of genipin in active substances in the folium cortex eucommiae. By blending modification of themodified cross-linked gel material and polyurethane rubber, the damping wide scope of a polyurethane rubber material is expanded effectively. The main cross-linked modified substance is the genipin material, the genipin material can react with free radical amino in rubber, cross-linking is carried out in a single-molecular or polymolecular mode, meanwhile, the number of reaction active sites of amolecular chain is limited, after most of rubber molecular chains are subjected to cross-linking modification at first, the types of the molecular chains are gradually reduced along with increasing of modification degree, the inside of the modified rubber material contains widely distributed sulfur modified rubber molecular chains, and therefore, the damping property of the polyurethane rubber material is improved effectively.

Description

technical field [0001] The invention relates to a preparation method of a wide temperature range rubber damping material, which belongs to the technical field of rubber materials. Background technique [0002] With the advancement and development of science and technology, the society's requirements for damping materials are becoming more and more stringent, and various industries are in urgent need of more damping materials with excellent performance. Extreme weather has occurred frequently in recent years, and extremely high temperature and low temperature conditions are not conducive to the damping performance of materials. This requires that the effective damping temperature range of the damping material be expanded while ensuring that the material has a certain damping factor value, and has a better mechanical properties. [0003] In recent years, with the rapid development of national economy and social science and technology, people have brought more superior life, b...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L5/12C08L1/28C08K13/02C08K5/1545C08K3/04C08K5/09C08K3/26C08K3/22C08K3/06C08K5/47C08B37/12C08J3/24
CPCC08B37/0039C08J3/246C08J2305/12C08J2401/28C08K2003/2296C08K2003/267C08L75/04C08L2205/03C08L5/12C08L1/288C08K13/02C08K5/1545C08K3/04C08K5/09C08K3/26C08K3/22C08K3/06C08K5/47
Inventor 龙青云季美
Owner 常州明华运输有限公司
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