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Solvent-free two-component polyurethane waterproof coating with flame retarding and smoke inhibiting effects

A two-component polyurethane and waterproof coating technology, used in polyurea/polyurethane coatings, fire-retardant coatings, coatings, etc., can solve problems such as life safety hazards and hinder escape, and achieve excellent workability.

Active Publication Date: 2019-01-08
YUZHONGQING WATERPROOF MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the research of the investigation agency, the death rate of people at the scene of fire accidents is about one in 100,000 in major fire scenes, and more than 70% of the deaths are caused by poisoning or even poisoning caused by the toxic smoke and dust permeating the fire scene. Suffocation phenomenon, which leads to tragedy, most polymer materials will not only decompose under high temperature conditions to produce toxic gases, but also the undecomposed solid residues will form smoke and dust, permeating the air, hindering escape, and giving people Great hazard to life safety

Method used

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  • Solvent-free two-component polyurethane waterproof coating with flame retarding and smoke inhibiting effects
  • Solvent-free two-component polyurethane waterproof coating with flame retarding and smoke inhibiting effects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation of component A of this example 1 (by mass parts) is as follows: mix 63 parts of polyether N220 and 18 parts of polyether N330 evenly, heat up to 90-100°C while stirring, and maintain a vacuum degree of -0.08-0.09MPa Dehydrate for 1 hour, use a Karl Fischer moisture analyzer to detect that the moisture content is less than 0.05%, and then cool down to 70-75°C (if the moisture content is not less than 0.05%, continue dehydration until the moisture content is less than 0.05%, then proceed to the next step), slowly add 24 After reacting at 80-85°C for 2-3 hours, add 20 parts of chlorinated paraffin 52 whose moisture content has been detected to be less than 0.05%, stir for 0.5h, cool down to 60°C and discharge to obtain component A ;

[0023] The preparation of component B of Example 1 (by mass) is as follows: add 90 parts of polyether 330N, 80 parts of chlorinated paraffin 52, 45 parts of rubber filler oil, and 3.8 parts of DISPERBYK108 into a multifunction...

Embodiment 2

[0025] The preparation of component A of this Example 2 (by mass parts) is as follows: Mix 63 parts of polyether N220 and 18 parts of polyether N330 evenly, heat up to 90-100°C while stirring, and maintain a vacuum of -0.08-0.09MPa Dehydrate for 1 hour, use a Karl Fischer moisture analyzer to detect that the moisture content is less than 0.05%, and then cool down to 70-75°C (if the moisture content is not less than 0.05%, continue dehydration until the moisture content is less than 0.05%, then proceed to the next step), slowly add 24 After reacting at 80-85°C for 2-3 hours, add 20 parts of chlorinated paraffin 52 whose moisture content has been detected to be less than 0.05%, stir for 0.5h, cool down to 60°C and discharge to obtain component A ;

[0026]The preparation of component B in Example 2 (in parts by mass) is as follows: add 90 parts of polyether 330N, 90 parts of naphthenic oil, 50 parts of aromatic oil, and 4.5 parts of DISPERBYK107 into a multifunctional powerful d...

Embodiment 3

[0028] The preparation of component A of Example 3 (in parts by mass) is as follows: mix 63 parts of polyether N220 and 18 parts of polyether N330 evenly, heat up to 90-100°C while stirring, and maintain a vacuum of -0.08-0.09MPa Dehydrate for 1 hour, use a Karl Fischer moisture analyzer to detect that the moisture content is less than 0.05%, then cool down to 70-75°C (if the moisture content is not less than 0.05%, continue dehydration until the moisture content is less than 0.05%, and then proceed to the next step), slowly add 24 After reacting at 80-85°C for 2-3 hours, add 20 parts of chlorinated paraffin 52 whose moisture content has been detected to be less than 0.05%, stir for 0.5h, cool down to 60°C and discharge to obtain component A ;

[0029] The preparation of component B of Example 3 (by mass parts) is as follows: add 90 parts of polyether 330N, 85 parts of epoxy soybean oil, 50 parts of rubber filler oil, and 4.3 parts of DISPERBYK111 into a multifunctional powerf...

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Abstract

The invention discloses a solvent-free two-component polyurethane waterproof coating with flame retarding and smoke inhibiting effects. The solvent-free two-component polyurethane waterproof coating with the flame retarding and smoke inhibiting effects comprises a first component and a second component. A formula for preparing the first component comprises the following raw materials: polyether polyol, aliphatic diisocyanate and liquid filler. The formula for preparing the second component comprises the following raw materials: a rubber vulcanizer, polyether polyol, the liquid filler, auxiliary liquid filler, inorganic filler, a fire retardant, an auxiliary agent, a rheological control additive and a flame retarding and smoke inhibiting synergist. According to the solvent-free two-component polyurethane waterproof coating with the flame retarding and smoke inhibiting effects, mainly aiming at the second component, polyether polyol, the liquid filler, the auxiliary liquid filler, the rubber vulcanizer, the inorganic filler and the dispersing agent are added into a reaction container, are stirred and heated to 115 + / - 5 DEG C, and are cooled after vacuum dewatering is performed; whenthe temperature is decreased to 70 + / - 5 DEG C, the flame retardant and the flame retarding and smoke inhibiting synergist are added; a foaming agent, the rheological control additive and a catalystare added after being stirred uniformly; the materials are cooled and discharged to obtain a finished product of the second component after being stirred uniformly continuously.

Description

technical field [0001] The invention relates to a polyurethane waterproof coating, in particular to a solvent-free two-component polyurethane waterproof coating with flame-retardant and smoke-suppressing effects. Background technique [0002] Polyurethane coatings are generally polymers synthesized by the reaction of polyether polyols and polyisocyanates. Most of them are composed of elements such as carbon, hydrogen, and oxygen. They are flammable, have large flames when burned, thick smoke, severe dripping, and toxic gases. Problems, and the solvent added to reduce the viscosity to ensure the workability will pollute the environment and endanger human health during the volatilization process after the coating film, and there are large safety and environmental protection risks in use. With the gradual improvement of people's safety awareness and the change of social development needs, more and more attention has been paid to the research and development of solvent-free coat...

Claims

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Application Information

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IPC IPC(8): C09D5/18C09D175/08C09D7/61C09D7/63
CPCC08K2003/2272C08K2003/265C08K2003/387C08L2201/02C09D5/18C09D175/08C09D7/61C09D7/63C08L91/06C08L91/00C08K13/02C08K3/26C08K3/22C08K5/521C08K3/38
Inventor 耿进玉李宏伟田益李晴龙
Owner YUZHONGQING WATERPROOF MATERIALS CO LTD
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