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An environmentally friendly polymer composite self-repairing waterproof material and its preparation method

An environmentally friendly, waterproof material technology, applied in epoxy resin coatings, chemical instruments and methods, layered products, etc., can solve problems such as environmental pollution, adverse effects of building fire protection, and reduced protective performance of roofing materials, and achieve short repair time. , good self-healing performance, good anti-leakage performance

Active Publication Date: 2021-03-26
SUZHOU UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above technical solution, the use of paraffin to fill the cracks, although to a certain extent played a role in repairing the cracks, but did not repair the material itself, the paraffin will liquefy and flow at high temperatures, resulting in a decline in the protective performance of the repaired roofing material , and may pollute the environment; in addition, paraffin is a flammable substance, and the above-mentioned technical scheme has adverse effects on building fire prevention

Method used

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  • An environmentally friendly polymer composite self-repairing waterproof material and its preparation method
  • An environmentally friendly polymer composite self-repairing waterproof material and its preparation method
  • An environmentally friendly polymer composite self-repairing waterproof material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: see attached figure 1 Shown, the preparation of polymer self-healing waterproof material.

[0042] Add 10 g of ethyl acetate and 30 g of absolute ethanol into a 500 ml container, and stir evenly. The epoxy resin was heated to a flowable state, and 40 g was slowly dropped into the container with a dropper, and vigorously stirred at room temperature. Weigh 0.2 g of superabsorbent fiber, add a small amount several times, and continue stirring vigorously for 3 hours to obtain suspension A. Weigh 100 parts of natural rubber, 1.5 parts of dicumyl peroxide, 1 part of magnesium oxide, 0.5 part of zinc oxide, 0.5 part of stearic acid, 0.5 part of anti-aging agent RD, roll several times on the open mill, and make triangle bags 3 times, mix well. Press the mixed rubber into a rubber sheet of about 1 mm on a flat vulcanizing machine, scrape the suspension A coating liquid evenly on the prepared rubber sheet, let it stand naturally and cure for several hours, and th...

Embodiment 2

[0061] Example 2: Preparation of polymer self-repairing waterproof material.

[0062] Add 10 g of ethyl acetate and 30 g of absolute ethanol into a 500 ml container, and stir evenly. Heat the epoxy resin to a flowable state, slowly add 40g dropwise with a dropper, and stir vigorously at room temperature. Weigh 0.2 g of superabsorbent fiber, add a small amount several times, and continue stirring vigorously for 3 hours to obtain suspension A. Weigh 100 parts of natural rubber, 1.5 parts of dicumyl peroxide, 1 part of magnesium oxide, 1 part of zinc oxide, 0.5 part of stearic acid, 1 part of anti-aging agent RD, roll several times on the open mill, and make triangular bags 3 times, mix well. Press the mixed rubber into a rubber sheet of about 1 mm on a flat vulcanizing machine, scrape the suspension A coating liquid evenly on the prepared rubber sheet, let it stand naturally and cure for several hours, and then scrape evenly again, cover Put on another piece of rubber presser...

Embodiment 3

[0066] Example 3: Preparation of polymer self-repairing waterproof material.

[0067] Add 10 g of ethyl acetate and 30 g of absolute ethanol into a 500 ml container, and stir evenly. Heat the epoxy resin to a flowable state, slowly add 40g dropwise with a dropper, and stir vigorously at room temperature. Weigh 0.2 g of superabsorbent fiber, add a small amount several times, and continue stirring vigorously for 3 hours to obtain suspension A. Weigh 100 parts of natural rubber, 1 part of dicumyl peroxide, 1 part of magnesium oxide, 0.5 part of zinc oxide, 0.5 part of stearic acid, 0.5 part of anti-aging agent RD, roll several times on the open mill, and make triangle bags 3 times, mix well. Press the mixed rubber into a rubber sheet of about 1 mm on a flat vulcanizing machine, scrape the suspension A coating liquid evenly on the prepared rubber sheet, let it stand naturally and cure for several hours, and then scrape evenly again, cover Put on another piece of rubber presser....

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Abstract

The invention discloses a preparation method of an environment-friendly high-polymer compound self-repairing water-proof material. The method comprises the following steps that 1, absolute ethyl alcohol and ethyl acetate are stirred evenly at a room temperature, and an obtained mixture is used as a solvent; 2, epoxy resin is added into the solvent obtained in the step 1, and at the room temperature, powerful stirring is conducted to obtain a solution; 3, superabsorbent fibers are added into the solution, and at the room temperature, powerful stirring and dispersion are conducted for 2-4 hoursto obtain suspension; 4, the suspension is subjected to even blade coating on a first rubber piece, natural standing and curing are conducted to obtain the rubber piece covered by a suspension layer,and the suspension layer is covered by a second rubber piece to obtain a compound sheet of a three-layer structure; 5, two surfaces of the compound sheet are covered by methyl silicone oil for vulcanization treatment, and after cooling is conducted, the high-polymer compound self-repairing water-proof material is obtained. According to the preparation method of the high-polymer compound self-repairing water-proof material, rubber and resin are combined, and have a synergistic effect on waterproofing, and the environment-friendly high-polymer compound self-repairing water-proof material has self-repairing property, and has the advantages of being environmentally friendly, anti-osmosis, ageing-resistant, long in life cycle and the like.

Description

technical field [0001] The invention relates to a building waterproof material, in particular to a polymer composite waterproof material with self-repairing performance and a preparation method thereof. Background technique [0002] In housing construction, the roof is the main protective structure that the uppermost layer plays a role of covering and sheltering from wind and rain. The leakage of the roof seriously affects the function of the house. Therefore, it is necessary to build a roof waterproof project. Common roof waterproofing includes roof membrane waterproofing, roof coating film waterproofing, tile roof waterproofing and roof joint sealing waterproofing, etc. [0003] However, the current anti-leakage effect is not satisfactory. On July 4, 2014, China Building Waterproof Association and Beijing Zero Point Market Research and Analysis Company jointly released the "2013 National Building Leakage Survey Project Report". According to the report, 2,849 building ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B25/04B32B25/12B32B33/00C08L7/00C08K13/02C08K5/14C08K3/22C08K5/09C09D163/00C09D7/65
CPCB32B25/042B32B25/12B32B33/00B32B2250/02B32B2250/248C08K3/22C08K5/09C08K5/14C08K13/02C08K2003/222C08K2003/2296C09D163/00C09D7/65C09D7/70C08L7/00C08L33/26
Inventor 董延茂宗泽赵丹张小友邵正洋
Owner SUZHOU UNIV OF SCI & TECH
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