Duprene rubber/vermicultie namo composite material and its preparing method

A nano-composite material and neoprene technology, applied in the field of neoprene/vermiculite nano-composite materials and their preparation, can solve problems such as unreported, and achieve the effects of wide application fields, improved elasticity, and improved mechanical properties

Inactive Publication Date: 2007-04-11
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about the preparation of neoprene / vermiculite nanocomposites at home and abroad.

Method used

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  • Duprene rubber/vermicultie namo composite material and its preparing method
  • Duprene rubber/vermicultie namo composite material and its preparing method
  • Duprene rubber/vermicultie namo composite material and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the preparation of neoprene / vermiculite nanocomposite

[0064] Add 6g of vermiculite with a cation exchange capacity of 105meq / 100g and a particle size of 200 mesh sieve into a three-necked bottle filled with 200ml of water, and evenly disperse in the solvent under electric stirring, and then add 3.4g of hexadecyl Trimethylammonium bromide, stir and heat up to 80°C, stir and react at 80°C for 2h, keep the temperature for 10 hours, cool to room temperature and centrifuge, wash the vermiculite sample fully with deionized water until 0.1mol / l AgNO 3 Check the solution until the supernatant does not appear precipitated. Dry the cleaned vermiculite sample in a drying oven at 70°C for several hours, and grind it until it passes through a 200-mesh sieve to obtain organic vermiculite.

[0065] Weigh 4g of the prepared organic vermiculite, soak it fully with 50ml tetrahydrofuran, and disperse it evenly in the solvent under magnetic stirring to obtain liquid A; d...

Embodiment 2

[0068] Embodiment 2: the preparation of neoprene / vermiculite nanocomposite

[0069] Add 6g of vermiculite with a cation exchange capacity of 90meq / 100g and a particle size of 200 mesh sieve into a three-necked bottle filled with 200ml of water, and disperse evenly in the solvent under electric stirring, and then add 2.88g of hexadecyl Trimethylammonium bromide, stir and heat up to 60-80°C, stir and react at 60-80°C for 2 hours, keep the temperature for 10 hours, cool to room temperature and centrifuge, fully wash the vermiculite sample with deionized water, until 0.1mol / l AgNO 3 Solution test supernatant until no precipitation occurs, dry the cleaned vermiculite sample in a drying oven at 70°C for several hours, and grind until it passes through a 200-mesh sieve to obtain organic vermiculite.

[0070] Weigh 5g of the obtained organic vermiculite and fully infiltrate it with 50ml xylene, and make it uniformly dispersed in the solvent under magnetic stirring to obtain liquid A;...

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PUM

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Abstract

The present invention relates to stripped nanometer chloroprene rubber (CR)/vermiculite composite material and its preparation process. The preparation process includes: purifying vermiculite; organizing vermiculite; preparing raw CR/vermiculite composite material; and preparing nanometer CR/vermiculite composite material. The nanometer CR/vermiculite composite material has raised hardness, stretching stress and other mechanical performance, improved elasticity and antistatic performance, widened application field and raised performance/cost ratio.

Description

technical field [0001] The present invention relates to a kind of exfoliation type neoprene (CR) / vermiculite nano-composite material and its preparation method, especially relate to the reaction and action mechanism of inserting organic vermiculite in organic solvent according to polar macromolecule-chloroprene rubber molecule And the obtained neoprene / vermiculite nanocomposite material. Background technique [0002] Polymer / layered silicate nanocomposites are a new type of composite material with polymer as the continuous phase and layered silicate nanosheets as the dispersed phase. Since the thickness of the nanosheet is one to tens of nanometers, the width and length are several hundred to several thousand nanometers (Qi Zongneng, Shang Wenyu, Theory and Practice of Polymer / Layered Silicate Nanocomposites, Chemical Industry Publishing House, 2002: 3-14), so the nanoparticles in the material structure have a large specific surface area and high surface energy, which can m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08K9/04C08J3/24C08K3/22
Inventor 张泽朋张治平刘建辉廖立兵肖诚斌董雪玲
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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