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Polydicyclopentadiene composite material and preparation method thereof

The technology of polydicyclopentadiene and dicyclopentadiene is applied in the field of preparation of composite materials, and can solve the problems of poor wear resistance of polydicyclopentadiene composite materials, achieve good wear resistance and improve impact strength , The effect of improving wear resistance

Inactive Publication Date: 2011-03-23
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wear resistance of the polydicyclopentadiene composite material obtained by the above method is poor, which cannot meet the needs of the market and limits its popularization and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The polydicyclopentadiene composite material of this embodiment is composed of the following components: 0.1% inorganic nano filler, the balance of polydicyclopentadiene and unavoidable impurities, wherein the inorganic nano filler is modified nano-silica.

[0026] The preparation method of the polydicyclopentadiene composite material of the present embodiment is as follows:

[0027] 1. Weigh 0.04 kg of unmodified spherical nano-silica, measure 300 ml of absolute ethanol, 35 ml of 0.1 mol / L hydrochloric acid and 2 g of silane coupling agent--vinyltrimethoxysilane, mix them uniformly, React at 50°C for 6 hours to obtain a uniform dispersion system, then distill under reduced pressure to obtain a gel, and dry the gel in vacuum at 40°C for 12 hours to obtain modified nano-silica, which is sealed and stored;

[0028] 2. At 50±10°C, add 0.1% mass percentage of modified nano-silica to dicyclopentadiene with a purity greater than 98%, and stir evenly to form a dicyclopentadien...

Embodiment 2

[0034] The polydicyclopentadiene composite material of this embodiment is composed of the following components: 0.1% inorganic nano filler, the balance of polydicyclopentadiene and unavoidable impurities, wherein the inorganic nano filler is modified nano calcium carbonate.

[0035] The preparation method of the polydicyclopentadiene composite material of the present embodiment is as follows:

[0036] 1. Accurately weigh 0.04 kg of nano-calcium carbonate, add it to 120 mL of butanol aqueous solution (40%), ultrasonically disperse for 30 minutes, add 2 g of sodium stearate, react at 80 ° C for 2 hours, and dry in vacuum to obtain the modified Nano calcium carbonate;

[0037]2. Under the condition of 50±10°C, add the modified nano-calcium carbonate with a mass percentage of 0.1% to dicyclopentadiene with a purity greater than 98%, and stir evenly to form a dicyclopentadiene-nanometer calcium carbonate dispersion, and The obtained dispersion is degassed and then protected with n...

Embodiment 3

[0043] The polydicyclopentadiene composite material of this embodiment is composed of the following components: 0.5% inorganic nano filler, the balance of polydicyclopentadiene and unavoidable impurities, wherein the inorganic nano filler is modified expanded nano graphite.

[0044] The preparation method of the polydicyclopentadiene composite material of the present embodiment is as follows:

[0045] 1. Expand the expandable graphite at a high temperature of 950°C for 15-30s to obtain expanded graphite, and then disperse the prepared expanded graphite in 70% ethanol for ultrasonication and mechanical stirring to pulverize, and suction filtration and drying to obtain a particle size Small expanded graphite nanoparticles;

[0046] 2. Weigh 0.20 kg of the above-mentioned expanded nano-graphite, add it to 1000 mL of anhydrous toluene, ultrasonically disperse for 30 minutes, add 8 g of toluene diisocyanate (TDI), react at room temperature for 1 hour, filter and wash with petroleum...

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PUM

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Abstract

The invention discloses a polydicyclopentadiene composite material, which consists of the following components in percentage by weight: 0.1 to 2 percent of inorganic nano filler, 0 to 5 percent of auxiliary polymer particles and the balance of polydicyclopentadiene and inevitable impurities, wherein the inorganic nano filler is nano inorganic salt, nano oxide, nano carbide or nano sulfide containing Si, Al, Ca, Zn, Ti, Zr or Mo metal or carbon-containing nonmetallic nano compound; and the auxiliary polymer particles are particles of polyethylene, polytetrafluoroethylene or polyamide, the particle diameter of which is 0.5 to 15 microns. The inorganic nano material and the auxiliary polymer particles are blended into the polydicyclopentadiene to prepare the polydicyclopentadiene composite material; and the abrasion resistance of the nano composite material is improved at the same time of improving the modulus and the impact strength, and the erosion and abrasion resistance of the nano composite material can reach 5 to 9 times that of low-chromium cast iron.

Description

technical field [0001] The invention relates to a polydicyclopentadiene composite material and a preparation method of the composite material. Background technique [0002] Polydicyclopentadiene (Polydicyclopentadiene, English abbreviation PDCPD) is an engineering plastic with high impact resistance and high modulus, which is polymerized from monomer dicyclopentadiene under the action of a catalyst. Diene is a by-product with large output in petrochemical ethylene production. [0003] Polydicyclopentadiene engineering plastics are materials with good heat resistance, creep resistance, dimensional stability, shape memory, corrosion resistance, and light weight. They can be used to manufacture various high-performance, high-value-added, High-end fine products. Such as: automobile bumpers, guard plates, side panels, hoods and body shells in the transportation industry; motors, air conditioners and other large electrical equipment shells in electrical equipment; snowmobiles an...

Claims

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Application Information

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IPC IPC(8): C08L45/00C08L23/06C08L27/18C08L77/00C08F132/08C08F2/44C08K9/06C08K3/36C08K3/26C08K9/04C08K7/24C08K7/10C08K3/22C08K3/34C08K3/30
Inventor 张玉清潘炳力刘少桢张春飞姚大虎赫玉欣高喜平
Owner HENAN UNIV OF SCI & TECH
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