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Self-repair material and preparation method and repairing coating layer thereof

A self-repairing material and reinforcement technology, applied in coatings, fireproof coatings, epoxy resin coatings, etc., can solve the problem of failure to develop fuel systems and oil storage facilities to prevent leakage of self-repairing materials, loss of continuous working ability of delivery equipment, There are limited types of repairing agents to achieve the effects of preventing oil loss, short molding cycle and good weather resistance

Active Publication Date: 2018-07-06
深圳市国志汇富高分子材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively simple and has a good repair effect, but the types of repair agents available are limited and cannot be repeated.
[0004] Filling the fuel system and oil storage facilities with polymer anti-explosion materials is a main method for fire prevention and anti-explosion. However, when the fuel is hit or damaged by collision, the fuel will leak, causing a fire, and making the delivery equipment lose its continuous working ability.
At present, no self-healing materials have been developed to prevent leakage in fuel systems and oil storage facilities

Method used

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  • Self-repair material and preparation method and repairing coating layer thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The self-healing material is composed of a recovery unit, a swelling filling unit and a self-repairing reinforcement unit. The raw materials of the recovery unit are: 8 parts of amino-terminated polyether (molecular weight 2000, brand ZD-1200) and 5 parts of toluene diisocyanate 80 / 20, 4 parts of high-polymerization crystalline type II ammonium polyphosphate, 7 parts of carbon fiber; the raw materials of the swelling filling unit are: 6 parts of styrene and 4 parts of 2-dodecyl acrylate; the self-repairing reinforcement unit is a microcapsule structure, composed of Composed of capsule wall and core material, the particle size is 90 μm. The raw materials of capsule wall are: 4 parts of paraffin, 6 parts of polyvinyl alcohol (30,000 molecular weight) and 4 parts of polyacrylate. The raw materials of capsule core are: 8 parts of epoxy group Polysiloxane Glycidoxypropyl terminated polydimethylsiloxane and 4 parts tetramethylsilane.

[0037] Prepare as follows:

[0038] S1....

Embodiment 2

[0045] The self-healing material is composed of a recovery unit, a swelling filling unit and a self-repairing reinforcement unit. The raw materials of the recovery unit are: 5 parts of amino-terminated polyether (molecular weight 2800, brand ZD-140) and 6 parts of toluene diisocyanate 65 / 35, 5 parts of crystalline type II ammonium polyphosphate with a high degree of polymerization; the raw materials of the swelling filling unit are: 9 parts of butene and 5 parts of 2-dodecyl acrylate; the self-repairing reinforcement unit is a microcapsule structure, composed of a capsule wall and a core Material composition, particle size 80μm, the raw material of the capsule wall is: 5 parts of paraffin, 5 parts of polyvinyl alcohol (molecular weight 25,000) and 5 parts of polyacrylate, the raw material of the capsule core is: 10 parts of glycidoxypropyl sealant end polydimethylsiloxane and 3 parts tetramethylsilane.

[0046] Prepare as follows:

[0047] S1. Mix the amino-terminated polyeth...

Embodiment 3

[0054] The self-healing material is composed of a recovery unit, a swelling filling unit and a self-repairing reinforcement unit. The raw materials of the recovery unit are: 10 parts of amino-terminated polyether (molecular weight 2500, brand ZD-123) and 4 parts of diphenylmethane diisocyanate, 10 parts of carbon fiber; the raw materials of the swelling filling unit are: 5 parts of propylene and 3 parts of octadecyl methacrylate; the self-repairing reinforcement unit is a microcapsule structure, which is composed of a capsule wall and a core material, with a particle size of 100 μm. The raw materials are: 3 parts of paraffin, 8 parts of polyvinyl alcohol (molecular weight 35,000) and 3 parts of polyacrylate. The raw materials of the capsule core are: 5 parts of epoxy-terminated phenyl trisiloxane and 5 parts of tetramethyl silane.

[0055] Prepare as follows:

[0056] S1. Mix the amino-terminated polyether and isocyanate evenly to cross-link and cure to obtain the recovery un...

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Abstract

The invention belongs to the technical field of high molecular materials and discloses a self-repair material which is composed of a recovery unit, a swelling and filling unit and a self repairing andreinforcing unit. In parts by weight, the recovery unit is prepared from 5 to 10 parts of amine-terminated polyether and 4 to 6 parts of isocyanate; the swelling and filling unit is prepared from 4 to 10 parts of olefin and 3 to 5 parts of alkyl acrylate; the self repairing and reinforcing unit is composed of a capsule wall and a core material, wherein the capsule wall is prepared from 3 to 5 parts of paraffin, 5 to 8 parts of polyvinyl alcohol and 2 to 5 parts of polyacrylate, and the capsule core is prepared from 5 to 10 parts of epoxy-contained polysiloxane and 3 to 5 parts of tetramethylsilane. The invention further discloses a preparation method of the self-repair material and a repairing coating layer of the self-repair material. The self-repair material disclosed by the inventioncan be applied to a fuel oil system (an oil tank); under the situation that a net-shaped high-molecular explosion inhibiting material is fed in the fuel oil system, a damaged opening can be quickly repaired when the fuel oil system is shot by bullets or collided; thus, oil loss and fire occurrence caused by fuel oil leakage are avoided.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a self-repairing material, a preparation method thereof, and a repairing coating. Background technique [0002] Self-healing materials or shape memory polymers are a class of functional or intelligent polymers that can "memorize" the initial shape and respond to external stimuli By virtue of its shape memory function, shape memory polymers can be widely used in structural connectors, packaging materials, printing materials, medical and other fields. [0003] At present, self-healing materials can be divided into two categories: intrinsic type and foreign aid type according to whether a repair agent is used. The intrinsic repair method is to use the reversible chemical reactions existing in the system to carry out self-healing, these chemical reactions include Diels-Alder reaction, dynamic covalent chemistry, disulfide bond reaction, supramolecular structure...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D163/00C09D123/08C09D183/04C09D5/18C09D7/61C09D7/63
CPCC08K2003/323C08L2201/02C08L2205/03C09D5/18C09D163/00C09D175/08C08L23/0869C08L83/04C08K13/04C08K7/06C08K3/32C08K5/5403
Inventor 杨卫魏化震杨智于名讯汪洋李桂群王锦华赵云峰陈彦张岩潘鲁斌牛丽娟高其沛张宏旺尹光牛丽媛
Owner 深圳市国志汇富高分子材料股份有限公司
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