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A kind of waterproof polymer membrane and preparation method thereof

A polymer and roll material technology, applied in the field of polymer materials, can solve the problems of poor waterproof effect, aging resistance, puncture resistance, corrosion resistance, low tensile strength and elongation, and poor adhesive properties of building materials. Achieve the effects of increasing mechanical properties and weather resistance, high tear strength and good weather resistance

Active Publication Date: 2020-05-19
绥棱科园防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common waterproofing membranes are mainly asphalt waterproofing membranes and polymer waterproofing membranes. Asphalt-based waterproofing membranes are traditional waterproofing membranes, which are low in cost and good in waterproofing, but their tensile strength and elongation are low. Poor temperature stability, high temperature is easy to flow, low temperature is easy to be brittle, poor aging resistance, short service life, belongs to low-grade waterproof membrane, and asphalt is poisonous, which poses a serious threat to the environment and people's health
The waterproof polymer membrane is made of chloroprene rubber, butyl rubber, EPDM rubber, polyvinyl chloride, polyisobutylene and polyurethane as raw materials, adding appropriate amount of additives and fillers, and the flexible material prepared has anti-corrosion properties. It has the characteristics of high tensile and tear strength, heat resistance, homogeneity, low temperature flexibility, and good weather resistance. It can be used cold and has a long service life, but its cost is high and it is prone to damage. Waterproof effect, aging resistance, Puncture resistance, corrosion resistance and other properties are relatively poor, and the adhesive performance of building materials is poor

Method used

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  • A kind of waterproof polymer membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A waterproof polymer coiled material is made of the following raw materials in parts by weight: 100 parts of polyurethane grafted acrylate polymer, 5 parts of pitch-based carbon fiber, and 2 parts of silane coupling agent KH550.

[0034] The preparation method of described polyurethane graft acrylate polymer, comprises the steps:

[0035] 1) Add 20g of toluene-2,4-diisocyanate and 5g of dibutyltin dilaurate into 200g of tetrahydrofuran, stir and react under nitrogen atmosphere at 65°C for 1 hour, then add 50g of polyurethane, continue to stir and react for 20 hours, and then dissolve in toluene Settled out, washed 4 times with toluene, and dried at 80°C in a vacuum oven for 12 hours to obtain surface-modified polyurethane;

[0036] 2) Dissolve 20 g of the surface-modified polyurethane prepared in step 1) in 100 g of dimethyl sulfoxide to form a solution, and then add 2 g of chlorobenzoquinone, 5 g of triethylamine, and 2,2'-diallyl Base bisphenol A 10g, stirred and rea...

Embodiment 2

[0042] A waterproof polymer coiled material is made of the following raw materials in parts by weight: 100 parts of polyurethane grafted acrylate polymer, 6 parts of pitch-based carbon fiber, and 3 parts of silane coupling agent KH560.

[0043] The preparation method of described polyurethane graft acrylate polymer, comprises the steps:

[0044] 1) Add 23g of toluene-2,4-diisocyanate and 5g of triethylamine into 220g of tetrahydrofuran, stir and react for 1.2 hours in a helium atmosphere at 67°C, then add 60g of polyurethane, continue to stir and react for 23 hours, and then sink in toluene After being washed with toluene for 5 times, it was dried in a vacuum oven at 83°C for 13 hours to obtain a surface-modified polyurethane;

[0045] 2) Dissolving 23 g of the surface-modified polyurethane prepared in step 1) in 120 g of N,N-dimethylformamide to form a solution, and then adding 2 g of l,4-naphthoquinone and tetrabutylammonium bromide 5g, 13g of 2,2'-diallyl bisphenol A, stirre...

Embodiment 3

[0051] A waterproof polymer membrane is made of the following raw materials in parts by weight: 100 parts of polyurethane grafted acrylate polymer, 7 parts of pitch-based carbon fiber, and 4 parts of silane coupling agent KH570.

[0052] The preparation method of described polyurethane graft acrylate polymer, comprises the steps:

[0053] 1) Add 25g of toluene-2,4-diisocyanate and 5g of tetrabutylammonium bromide into 250g of tetrahydrofuran, stir and react for 1.5 hours under a neon atmosphere at 65-70°C, then add 65g of polyurethane, and continue to stir and react for 25 hours. Finally, precipitate in toluene, wash with toluene for 6 times, and dry at 85°C in a vacuum oven for 14 hours to obtain surface-modified polyurethane;

[0054] 2) Dissolve 25 g of the surface-modified polyurethane prepared in step 1) in 135 g of N-methylpyrrolidone to form a solution, and then add 2 g of chlorobenzoquinone, 5 g of aluminum chloride, and 2,2′-diene Propyl bisphenol A 15g, stirred and ...

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Abstract

The invention discloses a waterproof polymer membrane, which is made of the following raw materials in parts by weight: 100 parts of polyurethane grafted acrylate polymer, 5-7 parts of pitch-based carbon fiber, and 2-5 parts of coupling agent. The invention also discloses a preparation method of the waterproof polymer coil, which includes the following steps: S1, adding the raw materials in proportion to the mixer and mixing them uniformly to obtain a mixture; S2, adding the mixture into a twin-screw extruder to extrude After molding, the polymer waterproof membrane is obtained. Compared with the waterproof membranes disclosed in the prior art, the waterproof polymer membrane disclosed by the present invention has higher tensile and tear strength, better heat resistance, homogeneity, aging resistance, corrosion resistance, and low temperature flexibility. , Better weather resistance, lower price, more significant waterproof effect, better use safety, and more green and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a waterproof polymer coil and a preparation method thereof. Background technique [0002] Waterproofing is an important function of building products. It is one of the key factors related to the use value, use conditions and sanitary conditions of buildings, and one of the key factors that affect people's production activities and quality of work and life. Waterproof membranes are widely used in building walls, roofs, tunnels, roads, etc., to resist external rainwater and groundwater leakage. It is closely related to people's lives. It can be said that waterproof membranes have become a must for people's lives a part. With the development of my country's economy and the continuous improvement of social living conditions, people pay more and more attention to their quality of life, and their requirements for waterproof conditions continue to increase. [0003] At prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/08C08K7/06C08K5/5419C08K5/5435C08K5/544C08F283/00C08F220/30C08F230/08
CPCC08F283/008C08K5/5419C08K5/5435C08K5/544C08K7/06C08L51/08C08F220/301C08F230/08
Inventor 余香兰
Owner 绥棱科园防水材料有限公司