Environment-friendly waterproof material and preparation method thereof

A waterproof material and environmental protection technology, applied in the field of waterproof materials, can solve the problems of poor compatibility, long-term use performance stability needs to be further improved, complex preparation components, etc., to achieve a wide range of raw material sources, significant waterproof effect, and good comprehensive performance Effect

Inactive Publication Date: 2020-12-08
郭琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of this material is complex, the compatibility between the components is not good, and the long-term performance stability needs to be further improved

Method used

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  • Environment-friendly waterproof material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] An environmentally friendly waterproof material, characterized in that it is prepared from the following raw materials in parts by weight: 30 parts of 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate, vinyl-terminated polyurethane 15 parts of polymer modified coal tar pitch, 10 parts of vinyl-terminated nitrile rubber, 3 parts of hyperbranched polysiloxane, and 0.07 part of azobisisobutyronitrile.

[0033] The preparation method of the 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate comprises the following steps: 3,6-dibromo-9-vinylcarbazole, bisphenol S, 1, 4 Add naphthoquinone and cesium carbonate to a three-necked flask connected with a water separator, then add dimethyl sulfoxide and toluene, stir and react at 125°C for 3 hours in a nitrogen atmosphere, and remove the water generated during the reaction through the water separator and toluene, after removing all the water, slowly raise the reaction temperature to 140°C, continue to stir the reaction f...

Embodiment 2

[0037] An environmentally friendly waterproof material, characterized in that it is prepared from the following raw materials in parts by weight: 35 parts of 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate, vinyl-terminated polyurethane 17 parts of polymer modified coal tar pitch, 11 parts of vinyl-terminated nitrile rubber, 4 parts of hyperbranched polysiloxane, and 0.08 part of azobisisoheptanonitrile.

[0038] The preparation method of the 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate comprises the following steps: 3,6-dibromo-9-vinylcarbazole, bisphenol S, 1, 4 Add naphthoquinone and sodium carbonate to a three-necked flask connected to a water separator, then add N,N-dimethylformamide and toluene, stir and react at 127°C for 3.5 hours in a helium atmosphere, and remove through the water separator For the water and toluene generated during the reaction, after removing all the water, slowly raise the reaction temperature to 143°C, continue to stir and reac...

Embodiment 3

[0042] An environmentally friendly waterproof material, characterized in that it is prepared from the following raw materials in parts by weight: 40 parts of 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate, vinyl-terminated polyurethane 17 parts of polymer modified coal tar pitch, 13 parts of vinyl-terminated nitrile rubber, 4.5 parts of hyperbranched polysiloxane, and 0.085 parts of azobisisobutyronitrile.

[0043] The preparation method of the 3,6-dibromo-9-vinylcarbazole / bisphenol S polycondensate comprises the following steps: 3,6-dibromo-9-vinylcarbazole, bisphenol S, 1, 4 Add naphthoquinone and potassium carbonate to a three-necked flask connected to a water separator, then add N,N-dimethylacetamide and toluene, stir and react at 130°C for 4 hours in a neon atmosphere, and remove through the water separator The water and toluene generated during the reaction, after removing all the water, slowly raise the reaction temperature to 145°C, continue stirring for 9 hou...

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Abstract

The invention discloses an environment-friendly waterproof material which is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of 3, 6-dibromo-9-vinyl carbazole/bisphenol S polycondensate, 15-20 parts of vinyl-terminated polyurethane prepolymer modified coal pitch, 10-15 parts of vinyl-terminated nitrile rubber, 3-6 parts of hyperbranched polysiloxaneand 0.07-0.1 part of initiator. The invention also provides a preparation method thereof. The environment-friendly waterproof material disclosed by the invention is good in comprehensive performance,remarkable in waterproof effect, good in performance stability, weather resistance and high and low temperature resistance, and relatively small in environmental pollution.

Description

technical field [0001] The invention relates to the technical field of waterproof materials, in particular to an environmentally friendly waterproof material and a preparation method thereof. Background technique [0002] In recent years, with the acceleration of urbanization in our country, industries such as urban construction and real estate have developed rapidly, and various modern buildings have sprung up in major cities in a short period of time, adding new colors to modern cities. While these buildings have brought many improvements to people's living environment and endowed people with a sense of comfort, in the long-term use process, if they are not properly waterproofed, they will cause problems such as leakage and mold, which seriously affect people's normal life. Therefore, the waterproofing of buildings cannot be underestimated. [0003] The method for waterproofing buildings in the prior art mainly adopts waterproof materials. Waterproof material is a flexib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/10C08L87/00C08L15/00C08L83/04C08G81/00C08G65/40
CPCC08G65/4006C08G81/00C08L71/00C08L2201/08C08L2205/035C08L87/005C08L15/00C08L83/04
Inventor 郭琳
Owner 郭琳
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