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Polydicyclopentadiene/ethylene copolymer in-situ polymerization blend composite and preparation method thereof

A technology of polydicyclopentadiene and ethylene copolymer, which is applied in the field of preparation of in-situ polymerization blended composite materials, can solve the problems of unsatisfactory toughness and high requirements, and achieve the advantages of convenient operation, high toughness and simple preparation method Effect

Inactive Publication Date: 2010-11-24
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polydicyclopentadiene has good comprehensive properties, its toughness cannot meet the higher requirements in some engineering fields.

Method used

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  • Polydicyclopentadiene/ethylene copolymer in-situ polymerization blend composite and preparation method thereof
  • Polydicyclopentadiene/ethylene copolymer in-situ polymerization blend composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The polydicyclopentadiene / ethylene copolymer in-situ polymerization blended composite material of this embodiment is composed of the following components in weight percentage: 99.9% polydicyclopentadiene and 0.1% ethylene-butene copolymer, wherein ethylene- The content of butene in the butene copolymer is 10%.

[0028] The preparation method of polydicyclopentadiene / ethylene-butene copolymer in-situ polymerization blending composite material of the present invention comprises the following steps:

[0029] (1) Dissolve ethylene-butene copolymer with a mass percentage of 0.1% in dicyclopentadiene with a mass percentage of 99.9% at 40°C, and stir well to obtain dicyclopentadiene / ethylene-butene copolymer The mixed solution of the substance, after the degassing reaction, use nitrogen protection for stand-by;

[0030] (2) Under the protection of nitrogen, add 20 kg of dicyclopentadiene / ethylene-butene copolymer mixed solution (40 kg in total, containing ethylene-butene Cop...

Embodiment 2

[0033] The polydicyclopentadiene / ethylene-propylene copolymer blended composite material of this embodiment is composed of the following components in weight percentage: 99% polydicyclopentadiene and 1% ethylene-propylene copolymer, wherein ethylene-propylene copolymer The content of propylene in the product is 20%.

[0034] The preparation method of polydicyclopentadiene / ethylene-propylene copolymer in-situ polymerization blending composite material of the present invention comprises the following steps:

[0035] (1) Dissolve ethylene-propylene copolymer with a mass percentage of 1% in dicyclopentadiene with a mass percentage of 99% at 50°C, and stir to obtain dicyclopentadiene / ethylene-propylene copolymer Mix the solution, and use nitrogen protection after degassing reaction;

[0036] (2) Under the protection of nitrogen, add 20 kg of dicyclopentadiene / ethylene-propylene copolymer mixed solution (40 kg in total, containing ethylene-propylene copolymer 0.4 kilograms); Add 0...

Embodiment 3

[0039] The polydicyclopentadiene / ethylene-octene copolymer in-situ polymerization blending composite material of the present invention and its preparation method are the same as in Example 2, the difference is that what the ethylene copolymer adopts is an ethylene-octene copolymer, wherein the octene The content is 8%.

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Abstract

The invention discloses a polydicyclopentadiene / ethylene copolymer in-situ polymerization blend composite and a preparation method thereof, and the blend composite is formed by carrying out polymerization and blending on mixed solution of an ethylene copolymer and dicyclopentadiene, the ethylene copolymer is a copolymer of ethylene and olefin containing less than 8 carbon atoms, acrylic alkyl ester or acetic acid olefin ester, wherein the content of the ethylene is 80-95%. The invention simultaneously discloses a preparation method of the blend composite. The polydicyclopentadiene / ethylene copolymer in-situ polymerization blend composite is fully dissolved and uniformly mixed with the ethylene copolymer before the polymerization of the dicyclopentadiene, the dicyclopentadiene is polymerized under the common action of a tungsten catalyst and alkyl aluminum, and the blending with the ethylene copolymer is realized while carrying out the polymerization, thereby obtaining a semi-interpenetrating network type polymer composite which is blended with the ethylene copolymer, improving the impact strength of the material from the original 100J / m which is not blended with the ethylene copolymer to 150-300L / m, and leading the blend composite to have high toughness.

Description

technical field [0001] The invention relates to a dicyclopentadiene and ethylene copolymer in-situ polymerization and blending composite material, and also relates to a preparation method of the in-situ polymerization and blending composite material. Background technique [0002] Polydicyclopentadiene (PDCPD) is a new type of engineering plastic, which has good heat resistance, creep resistance, dimensional stability, corrosion resistance, wear resistance and other characteristics. Polydicyclopentadiene material uses tungsten catalyst and alkylaluminum as catalyst, adopts reaction injection molding (RIM) process, has the advantages of fast molding speed, high efficiency and low energy consumption, and can be used to manufacture various large thin-walled and complex shapes Parts, such as: automobile bumpers, hoods and body shells in the transportation industry, motors, air conditioners and other large electrical equipment shells in electrical equipment, snowmobiles, surfboard...

Claims

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Application Information

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IPC IPC(8): C08L45/00C08L23/08C08F132/08
Inventor 张玉清徐华刘少祯姚大虎赫玉欣陆昶高喜平
Owner HENAN UNIV OF SCI & TECH
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