A bridge deck waterproof coating

A waterproof coating, polybenzimidazole technology, applied in fire-resistant coatings, asphalt coatings, coatings and other directions, can solve the product weather resistance, water resistance can not meet the requirements, anti-corrosion, acid and alkali resistance and other poor performance, can not play a role in preventing fire and other problems, to shorten the curing time, improve the crosslinking density and curing rate, and improve the rigidity

Active Publication Date: 2018-08-17
JIANGXI LONGZHENG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The weather resistance and water resistance of the product generally cannot meet the requirements;
[0006] (2) In the event of a fire, the film-forming substances of these fire-resistant coatings cannot withstand the sharply rising temperature and are quickly burned, and cannot play the role of fire prevention;
[0007] (3) Poor performance in anti-corrosion, acid and alkali resistance;
[0008] This greatly affects the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] With 11 parts by weight of drift sand, 11 parts by weight of 90# petroleum asphalt, 8 parts by weight of nano-titanium dioxide, 7 parts by weight of purple sand, 8 parts by weight of light calcium carbonate, 3 parts by weight of KH-560, 2 parts by weight of Parts of KH-550, 8 parts by weight of epoxy-terminated polyetheramine, 9 parts by weight of β-cyclodextrin modified amino-terminated sulfonated polybenzimidazole, 5 parts by weight of 1,4,5,8 -naphthalene tetracarboxylic anhydride, 3 parts by weight of 8-naphthylamine-1-sulfonic acid, 4 parts by weight of 1,5-naphthalene disulfonic acid, 8 parts by weight of dodecanedioic acid, 30 parts by weight of dimethyl Add sulfoxide and 70 parts by weight of deionized water into a gravity-free mixer, and open the flying knife to avoid adhesion and prevent uneven stirring. The stirring time is 10 minutes, and the material is discharged.

[0028] The epoxy-terminated polyetheramine is prepared by the following method:

[0029] I...

Embodiment 2

[0034] With 11 parts by weight of drift sand, 11 parts by weight of 90# petroleum asphalt, 8 parts by weight of nano-titanium dioxide, 7 parts by weight of purple sand, 8 parts by weight of light calcium carbonate, 3 parts by weight of KH-560, 2 parts by weight of Parts of KH-550, 8 parts by weight of epoxy-terminated polyetheramine, 9 parts by weight of amino-terminated sulfonated polybenzimidazole, 5 parts by weight of 1,4,5,8-naphthalene tetracarboxylic anhydride, 3 parts by weight 8-naphthylamine-1-sulfonic acid in parts by weight, 1,5-naphthalene disulfonic acid in 4 parts by weight, dodecanedioic acid in 8 parts by weight, dimethyl sulfoxide in 30 parts by weight and 70 parts by weight of Add deionized water into the gravity-free mixer, open the flying knife to avoid adhesion and prevent uneven mixing, and the stirring time is 10 minutes, and the material is discharged.

[0035] The epoxy-terminated polyetheramine is prepared by the following method:

[0036] In a 1000m...

Embodiment 3

[0040] With 11 parts by weight of drift sand, 11 parts by weight of 90# petroleum asphalt, 8 parts by weight of nano-titanium dioxide, 7 parts by weight of purple sand, 8 parts by weight of light calcium carbonate, 3 parts by weight of KH-560, 2 parts by weight of Parts of KH-550, 9 parts by weight of β-cyclodextrin modified amino-terminated sulfonated polybenzimidazole, 5 parts by weight of 1,4,5,8-naphthalene tetracarboxylic anhydride, 3 parts by weight of 8- Naphthylamine-1-sulfonic acid, 4 parts by weight of 1,5-naphthalene disulfonic acid, 8 parts by weight of dodecanedioic acid, 30 parts by weight of dimethylsulfoxide and 70 parts by weight of deionized water were added without In the gravity mixer, open the flying knife to avoid adhesion and prevent uneven mixing. The mixing time is 10 minutes, and the material is discharged.

[0041] The β-cyclodextrin modified amino-terminated sulfonated polybenzimidazole is prepared by the following method:

[0042] 0.11 moles of 3,...

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Abstract

The invention discloses a waterproof coating for a bridge deck. The waterproof coating is prepared from the following components in parts by weight: 3 to 20 parts by weight of aeolian sand, 5 to 16 parts by weight of No. 90 petroleum asphalt, 5 to 10 parts by weight of nano titania, 5 to 10 parts by weight of purple sand, 5 to 10 parts by weight of light calcium carbonate, 1 to 5 parts by weight of KH-560, 1 to 5 parts by weight of KH-550, 5 to 10 parts by weight of epoxy terminated polyether amine, 8 to 10 parts by weight of beta-cyclodextrin modified amine-terminated sulfonated polybenzimidazole, 4 to 6 parts by weight of 1,4,5,8-naphthalenetetracarboxylic dianhydride, 1 to 4 parts by weight of 8-naphthylamine-1-sulfonic acid, 3 to 5 parts by weight of 1,5-naphthalenedisulfonic acid, 5 to 10 parts by weight of dodecanedioic acid, 20 to 50 parts by weight of dimethyl sulfoxide and 50 to 100 parts by weight of deionized water.

Description

technical field [0001] The invention belongs to the technical field of coatings, and more specifically, the invention relates to a bridge deck waterproof coating. Background technique [0002] The cement concrete material is a water-resistant material, and the wet condition is the external condition for the early strength of the cement concrete material. However, a large number of facts have proved that bridges without waterproofing measures and poor performance of the waterproofing system will suffer from water damage to varying degrees long before reaching the end of their service life. Moisture penetrates into the gaps in the concrete through the poorly waterproof bridge deck system, causing various diseases, such as steel bar corrosion, concrete alkali-aggregate reaction, white bloom phenomenon, etc. [0003] In order to solve the problem of water seepage in bridges, the current technical measures are to install various types of bridge deck waterproof layers through bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D5/18C09D7/61C09D7/63C09D7/65
CPCC08K2201/011C08K2201/014C08L2205/03C09D5/18C09D7/61C09D7/63C09D7/65C09D195/00C08L63/00C08L79/04C08K13/02C08K5/1539C08K5/42C08K2003/265C08K3/34
Inventor 容七英
Owner JIANGXI LONGZHENG SCI & TECH DEV
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