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Cross-linked polymer composite material with isolation filler network structure and preparation method of cross-linked polymer composite material

A technology of cross-linked polymer and network structure, applied in the field of cross-linked polymer composite material and its preparation, cross-linked polymer composite material with isolated filler network structure and its preparation field

Active Publication Date: 2021-05-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has significant limitations, and the required polymer matrix is ​​typically a high-viscosity thermoplastic polymer

Method used

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  • Cross-linked polymer composite material with isolation filler network structure and preparation method of cross-linked polymer composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 A preparation method of cross-linked polymer composite material A1 with isolated network

[0022] This example provides a preparation method of a cross-linked polymer composite material A1 with an isolated network, the preparation method is the following steps carried out in sequence: Weigh 3 g of 2,2'-(1,4-phenylene)-bis [4-Mercapto-1,3,2-dioxaborane] (abbreviated as BDB) and 100g of styrene-butadiene rubber (specification: SBR2506) were put into the open mill, after blending for 20min, hot pressing at 160°C Curing to obtain the cross-linked styrene-butadiene rubber with borate ester bonds, which is then pulverized through an 80 mesh sieve;

[0023] Weigh 100g of cross-linked styrene-butadiene rubber particles with borate ester bonds and 1g of carbon nanotubes, mix them for 2 minutes under a high-speed mixer (20000r / min), and then mold them at 160°C and 20MPa for 30 minutes to obtain a composite material with an isolated network. Cross-linked polymer composi...

Embodiment 2

[0024] Example 2 A preparation method of cross-linked polymer composite material A2 with isolated network

[0025] This embodiment 2 provides a kind of preparation method of cross-linked polymer composite material A2 with isolation network, this preparation method is to take 200g bisphenol A, 100g glutaric anhydride, 10g transesterification reaction catalyst zinc acetate and stir and mix evenly, Then solidify 12 hours at 140 DEG C again, obtain the epoxy resin that 300g contains β-hydroxyl ester bond, then it is pulverized into particle and crosses 150 mesh sieves;

[0026] Disperse 300g of epoxy resin particles in 150mL of ethanol, disperse 0.6g of graphene in 500mL of ethanol, stir and mix the above two solutions, ultrasonic for 1 hour, and then volatilize ethanol at 60°C to obtain graphene-coated epoxy Resin particles were then hot-pressed at 180° C. under a pressure of 10 MPa for 45 minutes to obtain a cross-linked polymer composite material A2 with an isolated network.

Embodiment 3

[0027] Embodiment 3 A kind of preparation method of cross-linked polymer composite material A3 with isolated network

[0028] This embodiment 3 provides a preparation method of a cross-linked polymer composite material A3 with an isolated network. The preparation method is to weigh 134g of terephthalaldehyde, 30.9g of diethylenetriamine and 68.14g of triethylenetetra Stir and mix the amine evenly, pour it into a mold and place it at 80°C and 120°C to cure for 1 hour to obtain 200g of polyimide resin containing imine bonds, and then crush it into particles and pass through a 120-mesh sieve;

[0029] Disperse 100g of polyimide resin particles in 100mL of ethanol, ultrasonically disperse 2.5g of boron nitride in 250mL of ethanol, then stir and mix the above two solutions, and then volatilize the ethanol at 60°C to obtain boron nitride-coated poly The imine resin particles were then hot-pressed at 150° C. under a pressure of 10 MPa for 30 minutes to obtain a cross-linked polymer c...

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Abstract

The invention belongs to the field of high polymer materials, and discloses a cross-linked polymer composite material with an isolation network structure and a preparation method of the cross-linked polymer composite material. The cross-linked polymer composite material with the isolation network structure is obtained by introducing an exchange bond into a cross-linked polymer, mixing the cross-linked polymer with a filler and carrying out compression molding. The obtained cross-linked polymer composite material has high mechanical properties and conductivity. The preparation method is suitable for preparing the cross-linked polymer composite material, and is particularly suitable for preparing the cross-linked polymer composite material with the isolation network structure.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a cross-linked polymer composite material and a preparation method thereof, in particular to a cross-linked polymer composite material with an isolation filler network structure and a preparation method thereof. Background technique [0002] In the prior art, fillers are often added to polymers in order to improve the conductive properties (electrical conductivity, thermal conductivity, and barrier properties) of polymers, but adding a large amount of fillers will reduce the toughness of composite materials, make processing difficult, and increase production costs. And so on a series of questions. [0003] In order to avoid the above-mentioned problems caused by the excessive addition of fillers, it is necessary to distribute the fillers at the phase interface in the polymer, so that the fillers are isolated by the polymer phase domains to form a polymer composite material with an ...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08K5/55C08K3/04C08J3/24C08L63/00C08L61/22C08K3/38C08L15/00C08K5/375
CPCC08K5/55C08K3/041C08J3/24C08K3/042C08K3/38C08K5/3725C08K3/04C08J2309/06C08J2363/00C08K2003/385C08J2315/00C08K2201/001C08J2361/22C08L2312/00C08L9/06C08L63/00C08L61/22C08L15/00
Inventor 唐征海郭宝春
Owner SOUTH CHINA UNIV OF TECH
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