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Flame-retardant polydicyclopentadiene composite material and preparation method thereof

A technology of polydicyclopentadiene and dicyclopentadiene, which is applied in the field of flame-retardant polydicyclopentadiene composite materials and its preparation, and can solve the problems of affecting the mechanical properties of materials, restricting applications, and poor dispersion

Inactive Publication Date: 2020-02-04
GUANGDONG JUHANG INST FOR ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polydicyclopentadiene is a hydrocarbon, easy to ignite, the limiting oxygen index (LOI) is extremely low (about 18.5), and the ignition is accompanied by a lot of black smoke, which limits its application in electronics, electrical appliances, transportation, decoration, etc. Materials and many other fields of application
At present, in the existing technology for preparing flame-retardant polydicyclopentadiene, additive-type inorganic flame retardants with a high content are often used to realize the flame-retardant properties of polydicyclopentadiene. However, high-content additive-type flame retardants only It can be moderately dispersed in dicyclopentadiene, most of which are easy to settle and have poor dispersion, which will affect the mechanical properties of the material, and at the same time, the amount of smoke is relatively large

Method used

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preparation example Construction

[0020] Based on the composition of the above-mentioned composite material, the present invention also provides a preparation method of a flame-retardant polydicyclopentadiene composite material, comprising the following steps:

[0021] The first step: Weigh the antioxidant and coupling agent according to the above weight ratio and dissolve them in the dicyclopentadiene monomer, then add the main flame retardant, flame retardant synergist and synergist to the mixing system, stir Uniformly obtain the polymerization component A material;

[0022] The second step: dissolving the ruthenium-based catalyst in the toluene solution to obtain the B component material;

[0023] Step 3: Add the material of component B to the material of component A, stir it quickly in a mixer at a high speed in a vacuum, pour it into a mold at 60°C, and demould it in 6 minutes to obtain a flame-retardant polydicyclopentadiene composite material.

[0024] In order to further better explain the foregoing i...

Embodiment 1

[0026] Weigh 2 parts of antioxidant, 2 parts of coupling agent are dissolved in 100 parts of dicyclopentadiene monomer (DCPD monomer), and then add 15 parts of main flame retardant, 5 parts of flame retardant synergist and 5 parts of synergist In the mixing system, after stirring evenly, add 0.5 part of toluene solution dissolved with 0.01 part of ruthenium catalyst, after rapid vacuum high-speed stirring, pour it into a mold at 60 ° C, demold it in 6 minutes, and obtain a flame-retardant polydicyclopentadiene pieces.

Embodiment 2

[0028] Weigh 2 parts of antioxidant, 2 parts of coupling agent are dissolved in 100 parts of dicyclopentadiene monomer (DCPD monomer), and then add 20 parts of main flame retardant, 5 parts of flame retardant synergist and 5 parts of synergist In the mixing system, after stirring evenly, add 1 part of toluene solution dissolved with 0.01 part of ruthenium-based catalyst, after rapid vacuum high-speed stirring, pour it into a mold at 60 ° C, and demold it in 6 minutes to obtain a flame-retardant polydicyclopentadiene pieces.

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PUM

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Abstract

The invention provides a flame-retardant polydicyclopentadiene composite material and a preparation method thereof. The composite material includes a component A and a component B, and the component Ais formed by performing synchronous blend polymerization on a dicyclopentadiene monomer, a main flame retardant, a flame retardant synergist, a synergist, a coupling agent and an antioxidant; and thecomponent B includes a ruthenium-based catalyst and a dispersion liquid. According to the composite material, alkyl hypophosphite is used as the main flame retardant, ammonium polyphosphate and the like are used as the flame retardant synergist, zinc borate and the like are used as the synergist, in the compounding process of the flame retardant, the coupling agent is added, so that the interfacial properties of the materials can be enhanced, and the dispersibility of the components can be improved; the above mixtures are added into the dicyclopentadiene to be dispersed uniformly, the mixtures can be stably suspended in the monomer, after the components A and B are uniformly mixed and stirred through a mixer, vacuumizing is performed, the mixture is injected into a mold, and heating is performed to 60 DEG C for forming to obtain the flame-retardant polydicyclopentadiene material; and the material can achieve flame-retardant and smoke-suppressing effects under the conditions that sufficient dispersion is realized and the mechanical strength is affected to the least extent.

Description

technical field [0001] The invention relates to a polydicyclopentadiene flame-retardant modified composite material, in particular to a flame-retardant polydicyclopentadiene composite material and a preparation method thereof. Background technique [0002] Polydicyclopentadiene is a hydrocarbon, easy to ignite, the limiting oxygen index (LOI) is extremely low (about 18.5), and the ignition is accompanied by a lot of black smoke, which limits its application in electronics, electrical appliances, transportation, decoration, etc. Materials and many other fields of application. At present, in the existing technology for preparing flame-retardant polydicyclopentadiene, additive-type inorganic flame retardants with a high content are often used to realize the flame-retardant properties of polydicyclopentadiene. However, high-content additive-type flame retardants only It can be moderately dispersed in dicyclopentadiene, but most of them are easy to settle, and the dispersion is ...

Claims

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Application Information

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IPC IPC(8): C08F132/08C08F2/48C08K9/06C08K9/04C08K5/5313C08K3/32C08K3/38
CPCC08F2/48C08F132/08C08K3/32C08K3/38C08K5/5313C08K9/04C08K9/06C08K2003/323C08K2003/387
Inventor 陈旭东杜惠娟甄智勇
Owner GUANGDONG JUHANG INST FOR ADVANCED MATERIALS CO LTD