Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-closing type polyurethane waterproof coating and method for preparing same

A polyurethane waterproof and self-closing technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor weather resistance, achieve strong weather resistance, improve adhesion, and solve the effects of water leakage

Active Publication Date: 2016-10-26
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To improve the poor weather resistance of existing waterproof coatings; at the same time improve the self-closing properties of polyurethane waterproof coatings, so that after being damaged by external forces, the cracks will not seep for 16-20 hours

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-closing type polyurethane waterproof coating and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 一种自闭型聚氨酯防水涂料,由A、B两种组分构成;其中,A组分由如下重量比的原料组成:己二酸7份、HMDI 18份、2,6-二异氰酸基己酸甲酯18份、辛酸亚锡 0.1份、聚醚多元醇40份、DBTL 0.1份; B组分由如下重量比的原料组成:端羟基聚丁二烯10份、轻质碳酸钙10份、膨润土15份、白炭黑4份、固化剂15份、有机铋0.1份、溶剂油20份、消泡剂1份、扩链剂15份、氯化石蜡40份。

[0021] A、B两种组分的质量比为A 组分:B 组分=2:1.。

[0022] 固化剂为三乙基三胺。

[0023] 溶剂油为异构烷烃溶剂油。

[0024] 有机铋为异辛酸铋。

[0025] 本实施例还提供了一种自闭型聚氨酯防水涂料的制备方法,包括以下步骤:

[0026] (1)A组分制备:

[0027] 向反应釜一中加入己二酸,以0.6m 3 / h通入氮气,升温至65℃;向混合罐中加入 2,6-二异氰酸酯基己酸甲酯和HMDI,以转速75 r / min,搅拌9min,将混合罐中的液体缓慢滴加到反应釜一中;向反应釜一中加入DBTL、辛酸亚锡,升温至85℃,70r / min 搅拌反应1.5h;关闭氮气,再加入聚醚多元醇,在110℃、-0 .05MPa条件下,真空脱水1h;降温到55℃,即得 A 组分 ;

[0028] (2)B组分制备

[0029] 在反应釜二中加入端羟基聚丁二烯,升温至90℃,加入轻质碳酸钙、膨润土、白炭黑,分散10min,转速为350r / min;将反应釜二降温至70℃,加入固化剂、有机铋、溶剂油、消泡剂、扩链剂、氯化石蜡,以100r / min搅拌30min;在110℃下,真空脱水0.5h,真空压力为-0.05MPa;降温至55℃,即得B组分;

[0030] (3)配制防水涂料:

[0031] 将A组分和 B 组分按比例混合即可形成自闭型聚氨酯防水涂料。

Embodiment 2

[0033] 一种自闭型聚氨酯防水涂料,由A、B两种组分构成;其中,A组分由如下重量比的原料组成:己二酸7-10份、HMDI 24份、2,6-二异氰酸基己酸甲酯20 份、辛酸亚锡 0.1-0.3 份、聚醚多元醇55份、DBTL 0.3份; B组分由如下重量比的原料组成:端羟基聚丁二烯25份、轻质碳酸钙20份、膨润土25份、白炭黑6份、固化剂15-35份、有机铋0.5份、溶剂油30份、消泡剂2份、扩链剂25份、氯化石蜡55份。

[0034] A、B两种组分的质量比为A 组分:B 组分=3:1

[0035] 固化剂为三乙基三胺。

[0036] 溶剂油为异构烷烃溶剂油。

[0037] 有机铋为异辛酸铋。

[0038] 本实施例还提供了一种自闭型聚氨酯防水涂料的制备方法,包括以下步骤:

[0039] (1)A组分制备:

[0040] 向反应釜一中加入己二酸,以0.8m 3 / h通入氮气,升温至75℃;向混合罐中加入 2,6-二异氰酸酯基己酸甲酯和HMDI,以转速80 r / min,搅拌11min,将混合罐中的液体缓慢滴加到反应釜一中;向反应釜一中加入DBTL、辛酸亚锡,升温至90℃, 80 r / min 搅拌反应2.5h;关闭氮气,再加入聚醚多元醇,在120℃、-0 .06MPa条件下,真空脱水2h;降温到65℃,即得A 组分 ;

[0041] (2)B组分制备

[0042] 在反应釜二中加入端羟基聚丁二烯,升温至110℃,加入轻质碳酸钙、膨润土、白炭黑,分散20min,转速为450r / min;将反应釜二降温至80℃,加入固化剂、有机铋、溶剂油、消泡剂、扩链剂、氯化石蜡,以120r / min搅拌50min;在120℃下,真空脱水1h,真空压力为-0.06MPa;降温至65℃,即得B组分;

[0043] (3)配制防水涂料:

[0044] 将A组分和 B 组分按比例混合即可形成自闭型聚氨酯防水涂料。

Embodiment 3

[0046] 一种自闭型聚氨酯防水涂料,由A、B两种组分构成;其中,A组分由如下重量比的原料组成:己二酸8.5份、HMDI 21份、2,6-二异氰酸基己酸甲酯19 份、辛酸亚锡 0.2 份、聚醚多元醇47份、DBTL 0.2份; B组分由如下重量比的原料组成:端羟基聚丁二烯17份、轻质碳酸钙15份、膨润土20份、白炭黑5份、固化剂25份、有机铋 0.3份、溶剂油25份、消泡剂1.5份、扩链剂20份、氯化石蜡47份。

[0047] A、B两种组分的质量比为A 组分:B 组分=2.5:1

[0048] The curing agent is triethyltriamine.

[0049] Solvent oil is isoparaffin solvent oil.

[0050] Organic bismuth is bismuth isooctanoate.

[0051] Present embodiment also provides a kind of preparation method of self-closing type polyurethane waterproof coating, comprises the following steps:

[0052] (1) Preparation of component A:

[0053] Add adipic acid to the reaction kettle one, with 0.7m 3 Nitrogen gas was introduced per hour, and the temperature was raised to 70°C; 2,6-diisocyanatohexanoic acid methyl ester and HMDI were added to the mixing tank, stirred at a speed of 77r / min for 10min, and the liquid in the mixing tank was slowly added dropwise to the reaction Kettle 1; add DBTL and stannous octoate to reactor 1, r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides self-closing type polyurethane waterproof coating, and relates to the field of waterproof coating. The self-closing type polyurethane waterproof coating comprises a component A and a component B. The component A comprises, by weight, 7-10 parts of adipic acid, 18-24 parts of HMDI (hexamethylene diisocyanate), 18-20 parts of 2, 6-bi-isocyanato methyl hexanoate, 0.1-0.3 part of tin 2-ethylhexanoate, 40-55 parts of polyether polyol and 0.1-0.3 part of DBTL (dibutyltin dilaurate); the component B comprises, by weight, 10-25 parts of hydroxyl-terminated polybutadiene, 10-20 parts of light calcium carbonate, 15-25 parts of bentonite, 4-6 parts of white carbon black, 15-35 parts of curing agents, 0.1-0.5 part of organic bismuth, 20-30 parts of solvent oil, 1-2 parts of defoaming agents, 15-25 parts of chain extenders and 40-55 parts of chlorinated paraffin. The self-closing type polyurethane waterproof coating has the advantages that the problem of poor weather resistance of existing waterproof coating can be solved, and the self-closing property of the self-closing type polyurethane waterproof coating can be improved. The invention further provides a method for preparing the self-closing type polyurethane waterproof coating.

Description

technical field [0001] 本发明属于防水涂料领域,具体地说是涉及一种自闭型聚氨酯防水涂料及其制备方法。 Background technique [0002] 防水涂料是涂刷或喷涂在需要进行防水处理的基层表面上,能满足工业与民用建筑的屋面、地下室、内墙以及外墙等部位的防水渗漏要求。随着建筑行业的发展,各类防水涂料的研制及应用得到迅速发展,对建筑防水涂料的质量和性能提出了更高的要求。常见的问题在于暴露于建筑最外层的涂层,在酸雨或外力损的作用下,最外层受到损坏,进而内置的防水层被破坏,使涂层对建筑本体的保护能力降低;而发生这些状况之后,防水涂料由于不能实现自闭,进而导致越来越严重,直到无法继续使用。 Contents of the invention [0003] 为解决上述技术问题,本发明提供一种自闭型聚氨酯防水涂料及其制备方法。以改善现有防水涂料耐候性差的问题;同时提高聚氨酯防水涂料的自闭性,使其受到外力损坏后,16-20h实现裂缝不渗水。 [0004] 为达到上述目的,本发明所采取的技术方案为: [0005] 一种自闭型聚氨酯防水涂料,由A、B两种组分构成;其中,所述A组分由如下重量比的原料组成:己二酸7-10份、HMDI 18-24份、2,6-二异氰酸基己酸甲酯18-20 份、辛酸亚锡 0.1-0.3 份、聚醚多元醇40-55份、DBTL 0.1-0.3份;所述B组分由如下重量比的原料组成:端羟基聚丁二烯10-25份、轻质碳酸钙10-20份、膨润土15-25份、白炭黑4-6份、固化剂15-35份、有机铋 0.1-0.5份、溶剂油20-30份、消泡剂1-2份、扩链剂15-25份、氯化石蜡40-55份。 [0006] 优选地,在本发明的实施例中,所述A、B两种组分的质量比为A 组分:B 组分=2:1-3:1 [0007] 优选地,在本发明的实施例中,所述固化剂为三乙基三胺。 [0008] 优选地,在本发明的实施例中,所述溶剂油为异构烷烃溶剂油。 [0009] 优选地,在本发明的实施例中,所述有机铋为异辛酸铋、月桂芁酸铋和新癸酸铋中的任意一种。 [0010] 本发明还提供了一种自闭型聚氨酯防水涂料的制备方法,包括以下步骤: [0011] (1)A组分制备: [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D175/08C09D7/12C08G18/48C08G18/62
CPCC08G18/4063C08G18/48C08G18/6204C08L2205/03C09D7/61C09D7/65C09D175/08C08L91/06C08L91/00C08K13/02C08K2003/265C08K3/346C08K3/36C08K5/56
Inventor 夏晨曦
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com