Flame-retardant smoke-suppression non-cured rubber asphalt waterproof coating capable of being constructed at normal temperature

A technology of asphalt waterproof coating and non-curing rubber, which is applied in the direction of asphalt coating, other rubber coatings, fireproof coatings, etc. It can solve the problems of slow emergence of invisible defects, environmental pollution of asphalt smoke, degradation and aging, etc., and achieve the reduction of shear rate and energy consumption, normal temperature construction, flame retardant and smoke suppression, and the effect of reducing mixed viscosity

Active Publication Date: 2020-05-08
山东雨中情防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the popularization and application of non-curing rubber asphalt waterproof coatings, its hidden disadvantages have gradually emerged.
First of all, in the production process of the paint, modifiers such as waste rubber powder are added. In order to fully exert its modification effect on asphalt, it needs to rely on high temperature and long-term shearing, which not only consumes high energy, but also under high temperature for a long time Will release a large amount of asphalt fumes and pollute the environment
Secondly, during the construction process, the temperature of heating and removing the barrel is generally 140-200°C, which may easily cause burns and environmental pollution during construction, and may even cause non-curing in the barrel due to uneven heating, resulting in local degradation and ag

Method used

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  • Flame-retardant smoke-suppression non-cured rubber asphalt waterproof coating capable of being constructed at normal temperature
  • Flame-retardant smoke-suppression non-cured rubber asphalt waterproof coating capable of being constructed at normal temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Pour 30 parts of 70# asphalt, 10 parts of 200# asphalt and 15 parts of rubber filling oil into the development tank. After stirring the temperature to 140~160℃, add 0.1 part of 560 activator, control the rotation speed to 300 rpm, and stir. 40min development. Then add 12 parts of 40 mesh waste rubber powder and continue to stir for 60 minutes. After the waste rubber powder is fully developed, add 8 parts of oil-extended styrene butadiene rubber modifier and stir for 50 minutes. After it is completely dissolved, continue to add 0.2 part of BL asphalt modification After 30 minutes of dispersion and stirring, 16 parts of tricresyl phosphate and 3 parts of zinc borate are added accordingly. After 40 minutes of dispersion and stirring, the temperature is lowered and the material is discharged to obtain a flame-retardant, smoke-suppressing non-curing rubber asphalt waterproof coating that can be applied at room temperature.

Embodiment 2

[0025] Put 30 parts of 90# asphalt, 10 parts of 200# asphalt, and 15 parts of aromatic oil into the development tank. After stirring the temperature to 140~160℃, add 0.15 parts of 420 rubber desulfurizer, control the rotation speed to 300 rpm, and stir. Development for 50min. Then add 13 parts of 40 mesh waste rubber powder and continue to stir for 50 minutes. After the waste rubber powder is fully developed, add 10 parts of butadiene rubber modifier and stir for 40 minutes. After it is completely dissolved, continue to add 0.2 part of 8903 asphalt modifier and disperse After stirring for 20 minutes, add 16 parts of resorcinol bis(diphenyl phosphate) and 3 parts of zinc aluminate accordingly, disperse and stir for 40 minutes, then cool down and discharge, that is, it can be constructed at room temperature, flame retardant, smoke suppressed, non-cured rubber asphalt waterproof coating.

Embodiment 3

[0027] Pour 40 parts of 70# asphalt and 20 parts of naphthenic oil into the development tank. After stirring the temperature to 140-160°C, add 0.2 part of 560 activator, control the rotation speed to 300 rpm, and stir for 50 minutes. Then add 14 parts of 40 mesh waste rubber powder and continue to stir for 50 minutes. After the waste rubber powder is fully developed, add 12 parts of oil-extended styrene butadiene rubber modifier and stir for 40 minutes. After it is completely dissolved, continue to add 0.2 part of Sasobit asphalt modification After 30 minutes of dispersion and stirring, 14 parts of tricresyl phosphate and 5 parts of molybdenum oxide are added accordingly. After 40 minutes of dispersion and stirring, the temperature is lowered and the material is discharged to obtain a flame-retardant, smoke-suppressing non-curing rubber asphalt waterproof coating that can be applied at room temperature.

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Abstract

The invention provides a flame-retardant smoke-suppression non-cured rubber asphalt waterproof coating capable of being constructed at normal temperature. The flame-retardant smoke-suppression non-cured rubber asphalt waterproof coating is prepared from asphalt, softening oil, an activator, waste rubber powder, a modifier, a liquid flame retardant and a synergist. A preparation process of the waterproof coating comprises the following steps: uniformly mixing and stirring the mixed asphalt and the softening oil, heating to dehydrate, adding the activator, fully stirring to develop, adding the waste rubber powder, continuously adding the modifier to dissolve after complete development, adding the liquid flame retardant and the viscosity-reducing and flame-retarding synergist, cooling, and discharging. A sol method is adopted, the liquid flame retardant is used as a liquid filler to reduce viscosity and soften the rubber modifier, and the liquid flame retardant is also used as a main flame retardant to achieve a flame retardant effect. Asphalt is modified in multiple steps, and S-S bonds/S-C bonds of net-shaped macromolecular chain segments in the waste rubber powder are subjected tooxidative fracture through the desulfurization effect of the activator, so a large number of small molecular chain segments are produced and evenly dispersed in the asphalt in a suspended mode, and astable semi-solid continuous phase system is formed through a gel film. The process can reduce the shearing rate and energy consumption in the production process, so that normal-temperature construction and flame retardance and smoke suppression are realized, the construction energy consumption and environmental pollution are effectively reduced, macromolecular wastes such as waste rubber powder and the like are fully recycled, and the construction of the resource environment-friendly society is facilitated.

Description

Technical field [0001] The invention relates to the technical field of building materials application, in particular to a flame-retardant, smoke-suppressing non-curing rubber asphalt waterproof coating that can be constructed at room temperature. Background technique [0002] In recent years, the composite waterproofing system of non-curing rubber asphalt waterproof coating and modified asphalt waterproof membrane has been successfully applied in various major projects, and the amount of non-curing rubber asphalt waterproof coating has shown a blowout growth. The non-curing rubber asphalt waterproof coating can not be cured for a long time within its service life, and it always maintains a viscous paste. It has the characteristics of creep, strong self-healing ability, and can seal the cracks and pores of the base layer, especially with modified asphalt The waterproof membrane has excellent compatibility. When the two are used in combination, they can give full play to their resp...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D119/00C09D5/18
CPCC08K2003/2255C08K2003/387C08L2201/02C08L2205/025C08L2205/035C08L2207/24C09D5/18C09D195/00C08L95/00C08L91/00C08L19/003C08L9/06C08K5/523C08K3/38C08L9/02C08K3/24C08K3/22
Inventor 李晴龙李宏伟田益
Owner 山东雨中情防水材料有限公司
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