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Polydicyclopentadiene composite material and single material reaction injection molding technology thereof

A technology of polydicyclopentadiene and dicyclopentadiene, which is applied in the formulation of polydicyclopentadiene composite materials and its single-material reaction injection molding process, which can solve the problems of single-material injection of slurry formula and achieve short curing time , low equipment cost, and excellent mechanical properties

Active Publication Date: 2015-12-30
克琴新材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used reaction injection molding process (RIM) in the market is double-material injection in the form of AB material, and there is no process for direct single-material injection of slurry formula

Method used

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  • Polydicyclopentadiene composite material and single material reaction injection molding technology thereof
  • Polydicyclopentadiene composite material and single material reaction injection molding technology thereof
  • Polydicyclopentadiene composite material and single material reaction injection molding technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of PDCPD composite material that the present invention relates to is applied to various product parts requiring good mechanical properties, and comprises the following components by weight ratio: dicyclopentadiene 58.98%, styrene 3%, silicon dioxide 35%, triphenyl Phosphine 0.01%, p-tert-butylphenol 1%, toluene 2%, curing agent 0.01%.

[0040] The single-material RIM (reaction injection molding) process method of the above-mentioned PDCPD (polydicyclopentadiene) composite material is carried out in the following steps:

[0041] 1. Fully mix dicyclopentadiene, styrene, silicon dioxide, triphenylphosphine, p-tert-butylphenol and 1 / 2 weight of toluene to obtain a slurry;

[0042] 2. Add the curing agent Dissolved in the remaining toluene to obtain a transparent solution;

[0043] 3. After fully mixing the slurry and curing agent solution, keep the temperature below 30 degrees and inject it into the mold through the injection molding machine.

[0044] 4. The mo...

Embodiment 2

[0049] A kind of PDCPD composite material that the present invention relates to is applied to various product parts requiring good mechanical properties, and comprises the following components by weight ratio: dicyclopentadiene 46%, butadiene 1%, carbon fiber 15.88%, aluminum oxide 35%, diethylene glycol dibutyl ether 0.1%, tert-butyl hydroquinone 1%, dichloromethane 1%, curing agent 0.02%.

[0050] The single-material RIM (reaction injection molding) process method of the above-mentioned PDCPD (polydicyclopentadiene) composite material is carried out in the following steps:

[0051] 1. Fully mix dicyclopentadiene, butadiene, carbon fiber, diethylene glycol dibutyl ether, tert-butyl hydroquinone and 2 / 3 weight of dichloromethane to obtain a slurry;

[0052] 2. Add the curing agent Dissolved in the remaining dichloromethane to obtain a clear solution;

[0053]3. After fully mixing the slurry and curing agent solution, keep the temperature below 30 degrees and inject it int...

Embodiment 3

[0059] A kind of PDCPD composite material that the present invention relates to is applied to various product parts requiring good mechanical properties, and comprises the following components by weight ratio: 60% of dicyclopentadiene, 10% of butyl methacrylate, 3% of glass fibers, Polystyrene 20.89%, 2,6-di-tert-butyl-p-cresol 0.1%, aniline 3%, tetrahydrofuran 3%, curing agent 0.01%.

[0060] The single-material RIM (reaction injection molding) process method of the above-mentioned PDCPD (polydicyclopentadiene) composite material is carried out in the following steps:

[0061] 1. Fully mix dicyclopentadiene, butyl methacrylate, glass fiber, 2,6-di-tert-butyl-p-cresol, aniline and 3 / 5 weight tetrahydrofuran to obtain a slurry;

[0062] 2. Add the curing agent Dissolved in the remaining tetrahydrofuran to obtain a transparent solution;

[0063] 3. After fully mixing A and B, keep the temperature below 30 degrees and inject it into the mold through the injection molding mac...

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Abstract

The invention discloses a formula of a polydicyclopentadiene (PDCPD) composite material and a single material reaction injection molding (RIM) technology thereof. The composite material is prepared from 35-65% of dicyclopentadiene, 1-15% of copolymers, 10-51% of functional filler, 0.01-0.1% of polymerization regulator, 1-5% of antiaging agents, 1-3% of cosolvent and 0.01-0.1% of curing agent, and the curing agent is a ruthenium-carbine catalyst. The single material reaction injection molding technological method includes the steps that the formula materials are mixed and evenly dispersed and form mixed slurry with a curing agent solution, and the mixed slurry is injected into a molding mold at the speed of 10-100 ml / s with the temperature kept below 30 DEG C; the mold is heated to 60 DEG C-80 DEG C, curing is carried out fast within one minute, and then demolding is carried out. The PDCPD composite material is good in mechanical property, the curing time is short, and the process is simple.

Description

technical field [0001] The invention belongs to the technical field of novel materials, and in particular relates to a formula of a polydicyclopentadiene (PDCPD) composite material and a single-material reaction injection molding (RIM) process thereof. Background technique [0002] Polydicyclopentadiene (abbreviated as PDCPD) engineering plastics is a new type of engineering material with good comprehensive mechanical and physical properties. It also has high impact strength, high flexural modulus (toughness index), high hardness, high heat Deformation temperature and very good anti-aging properties. This technology belongs to the high-tech encouraged by the state, and the manufacturing process is flexible and simple, especially suitable for making ultra-thin parts with high strength and large area. [0003] Therefore, it shows a very broad application prospect in the fields of automobile industry, engineering machinery manufacturing, medical and sports equipment, petrochem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L45/00C08F232/08C08F4/80B29C67/24
Inventor 吴江张伟
Owner 克琴新材料科技(上海)有限公司
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