Roof concrete waterproof base coat material

A technology of concrete and raw materials, applied in polyurea/polyurethane coatings, coatings, primers, etc., can solve problems such as short service life, poor adhesion, weak tensile strength, etc., and improve water retention and processability , enhanced bonding strength, and long service life

Inactive Publication Date: 2021-01-01
临沂斯科瑞聚氨酯材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing roof concrete waterproof primer materials still have some deficiencies, for example; the existing roof concrete waterproof primer materials have weak tensile strength, cannot chemically react with nitrogen in the air, and have strong adhesion. Poor and short service life, and the existing roof concrete waterproof primer material can not improve the water retention and processability of the waterproof primer material, which weakens the bonding strength of the waterproof primer material to the substrate during use and the waterproof effect after use , which reduces the stability of the waterproof primer material after use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]The roof concrete waterproof primer includes the following raw materials and their weight fractions: 63% by mass of polyurethane; 20% by mass of natural asphalt organogel; 5% by mass of polymer modifier; The ester is 2% by mass; the coupling agent is 7% by mass; and the hydrophobic agent is 3% by mass.

[0044] The preparation steps are as follows:

[0045] a. First, take polyurethane, natural asphalt organic gel, polymer modifier, natural rubber butyl ester, hydroxypropyl methylcellulose, phenolic resin, polyethylene glue, coupling agent and hydrophobic agent according to weight parts ;

[0046] b. After step a is completed, put polyurethane, natural asphalt organic gel, polymer modifier and natural rubber butyl ester into a mixer and add an appropriate amount of deionized water to mix to prepare mixture A;

[0047] c. After step b is completed, pour phenolic resin, polyethylene glue, coupling agent and hydrophobic agent into the mixer to mix with mixture A, and final...

Embodiment 2

[0050] The roof concrete waterproof primer includes the following raw materials and their weight fractions: 55% by mass of polyurethane; 15% by mass of natural asphalt organogel; 5% by mass of polymer modifier; 2% by mass of ester; 3% by mass of hydroxypropyl methylcellulose; 4% by mass of phenolic resin; 6% by mass of polyethylene glue; 7% by mass of coupling agent; 3% by mass of hydrophobic agent % parts by mass.

[0051] The preparation steps are as follows:

[0052] a. First, take polyurethane, natural asphalt organic gel, polymer modifier, natural rubber butyl ester, hydroxypropyl methylcellulose, phenolic resin, polyethylene glue, coupling agent and hydrophobic agent according to weight parts ;

[0053] b. After step a is completed, put polyurethane, natural asphalt organic gel, polymer modifier and natural rubber butyl ester into a mixer and add an appropriate amount of deionized water to mix to prepare mixture A;

[0054] c. After step b is completed, pour phenolic ...

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PUM

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Abstract

The invention discloses a roof concrete waterproof base coat material, which comprises the following raw materials by mass: 45-65% of polyurethane; 10-20% of natural asphalt organic gel; 3-5% of a polymer modifier; 1-2%of natural rubber butyl ester; 3-5% of hydroxypropyl methyl cellulose; 2-4% of phenolic resin; 3-7% of polyethylene glue; 2-7% of a coupling agent; and 1-3% of a hydrophobic agent.The waterproof base coat material has the advantages of tensile resistance, cracking resistance, low temperature resistance, capability of generating chemical reaction with nitrogen in air, high binding power, long service life and the like, and by adding hydroxypropyl methyl cellulose, phenolic resin and polyvinyl chloride, the water retention property and processability of the waterproof base coat material can be effectively improved, the bonding strength of the waterproof base coat material to a substrate in the use process and the waterproof effect after use are enhanced, and the stabilityof the waterproof base coat material after use is improved.

Description

technical field [0001] The invention relates to the technical field of waterproof primer materials, in particular to a roof concrete waterproof primer material. Background technique [0002] Most of the water contained in the formed concrete exists between solid particles in the form of free water, and a small part of water participates in the hydration reaction inside the concrete, changing from liquid water to insoluble hydrates, and most of the water evaporates The form of the concrete leaves the concrete, and with the evaporation of water, a large number of voids appear in the concrete, resulting in an imbalance of internal and external pressure, causing the concrete to dry shrink, and produce fine cracks. When the longitudinal cracks inside the concrete connect with each other to form capillary channels, water seepage occurs. There are many kinds of waterproof materials to solve concrete leakage, which can be divided into body waterproofing agent and surface waterproofi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D161/14C09D101/28C09D127/06C09D7/65C09D5/00C08G8/28C08B11/08
CPCC08B11/08C08G8/28C08L2205/035C09D5/002C09D175/04C09D7/65C08L61/14C08L1/284C08L27/06
Inventor 张汉玲李梦宇
Owner 临沂斯科瑞聚氨酯材料有限公司
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