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CN111253849A - 一种单组分无溶剂抗流挂聚氨酯防水涂料、生产系统及其生产方法 - Google Patents

一种单组分无溶剂抗流挂聚氨酯防水涂料、生产系统及其生产方法 Download PDF

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Publication number
CN111253849A
CN111253849A CN201911301237.2A CN201911301237A CN111253849A CN 111253849 A CN111253849 A CN 111253849A CN 201911301237 A CN201911301237 A CN 201911301237A CN 111253849 A CN111253849 A CN 111253849A
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CN
China
Prior art keywords
parts
waterproof coating
polyurethane waterproof
free anti
component solvent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911301237.2A
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English (en)
Inventor
贺小钢
李忠人
赵祖兵
徐加康
马世界
韩玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Calon Building Materials Co ltd
Jiangsu Canlon Building Materials Co Ltd
Original Assignee
Jiangsu Calon Building Materials Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Calon Building Materials Co ltd filed Critical Jiangsu Calon Building Materials Co ltd
Priority to CN201911301237.2A priority Critical patent/CN111253849A/zh
Priority to US16/827,686 priority patent/US20210179886A1/en
Priority to EP20165033.0A priority patent/EP3838958A1/en
Publication of CN111253849A publication Critical patent/CN111253849A/zh
Pending legal-status Critical Current

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Abstract

本发明公开了一种单组分无溶剂抗流挂聚氨酯防水涂料、生产系统及其生产方法，所述聚氨酯防水涂料的组分按重量份数计为：聚氨酯预聚体25～50份、重质填料10～20份、纳米填料10～20份、复合催化剂0.05～0.2份、物理消泡剂0.1～0.3份、化学消泡剂0.1～0.3份、增塑剂5～20份、分散剂0.1～0.3份、脱水剂0.05～0.2份以及活性稀释剂2～5份，聚氨酯预聚体由19～72份的复合树脂二元醇、1～10份聚醚三元醇、0～32份复合异氰酸酯以及0.1～0.5份脂肪族胺类扩链剂反应而成。本发明提供的聚氨酯防水涂料不仅能够应用在立面或斜坡面上，防流挂性能强，保持良好的物理性能，而且还能实现连续化生产，增大工作效率。

Description

一种单组分无溶剂抗流挂聚氨酯防水涂料、生产系统及其生 产方法
技术领域
本发明属于聚氨酯防水涂料技术领域，更具体地，涉及一种单组分无溶剂抗流 挂聚氨酯防水涂料、生产系统及其生产方法。
背景技术
聚氨酯防水涂料是由异氰酸酯、聚醚等经加成聚合反应而成的含异氰酸酯基的预聚体，配以催化剂、无水助剂、无水填充剂、溶剂等，经混合等工序加工制成的单 组分聚氨酯防水涂料。该类涂料为反应固化型涂料，具有强度高、延伸率大和耐水性 能好等特点，且对基层变形的适应能力强。
由于防水涂料施工的场地一般是立面或斜坡面等，使得施工不方便 且易出现质量问题。用防水涂料可形成无接缝防水层，但是通用型涂料涂 刷在立面或斜坡面上时会流淌，造成上部薄、下部厚。
目前聚氨酯防水涂料的生产方式99％的采用间歇的反应釜生产方式，若生产高抗流挂的涂料，因反应釜的生产方式涂料只能通过重力或者适当加压流出包装，势必造 成涂料粘附于反应釜内壁，日积月累越来越厚，导致涂料传热慢，温度控制不准等问 题，而结皮的清除，一般通过水煮或者人工进入的方式进行清理。一方面浪费时间人 力，另一方面增加了材料损耗，而清理的结皮属于固体废弃物，处理也比较麻烦。
综上所述，如何设计一种聚氨酯防水涂料及其生产系统，不仅能够应用在立面 或斜坡面上，防流挂性能强，保持良好的物理性能，而且还能实现连续化生产，增大 工作效率，是目前急需解决的问题。
发明内容
本发明的目的在于为了解决现有的聚氨酯防水涂料应用在立面或斜坡面上时会流淌以及现有的聚氨酯防水涂料的生产方式大多采用间歇的反应釜生产方式的技术问题，而提供一种单组分无溶剂抗流挂聚氨酯防水涂料，不仅能够应用在立面或斜坡面 上，防流挂性能强，保持良好的物理性能，而且还能实现连续化生产，增大工作效率。
本发明通过以下技术方案来实现上述目的，一种单组分无溶剂抗流挂聚氨酯防水涂料，所述聚氨酯防水涂料的组分按重量份数计为：聚氨酯预聚体25～50份、重质填 料10～20份、纳米填料10～20份、复合催化剂0.05～0.2份、物理消泡剂0.1～0.3 份、化学消泡剂0.1～0.3份、增塑剂5～20份、分散剂0.1～0.3份、脱水剂0.05～ 0.2份以及活性稀释剂2～5份，所述聚氨酯预聚体由19～72份的复合树脂二元醇、1～ 10份聚醚三元醇、0～32份复合异氰酸酯以及0.1～0.5份脂肪族胺类扩链剂反应而成， 所述纳米填料为石膏晶须、气相二氧化硅、纳米碳酸钙、纳米氮化铝、纳米氮化硼、 纳米硼酸铝以及疏水改性气硅的任意组合，所述气相二氧化硅和纳米碳酸钙的重量比 为0.045～0.08:1。
优选的，所述复合树脂二元醇的组分按重量份数计为：400分子量的聚环氧丙烷醚二元醇8～22份、1000分子量的聚环氧丙烷醚二元醇3～18份以及2000分子量的 聚环氧丙烷醚二元醇8～32份。
优选的，所述聚醚三元醇为3000～5000分子量的聚环氧丙烷醚三元醇。
优选的，所述复合异氰酸酯包括0～10份的第一异氰酸酯和0～8份的第二异氰酸酯，所述第一异氰酸酯为纯二苯基甲烷二异氰酸酯、异佛尔酮二异氰酸酯以及2,4'- 二苯基甲烷二异氰酸酯与4,4'-二苯基甲烷二异氰酸酯的混合物中的任意一种，所 述第二异氰酸酯为改性二苯基甲烷二异氰酸酯、六亚甲基二异氰酸酯以及甲苯二异氰 酸酯中的任意一种。
优选的，所述活性稀释剂为噁唑烷活性稀释剂。
优选的，所述复合催化剂包括0～10份的二月桂酸二丁基锡、0～3份的辛酸亚锡、0～5份的环保非丁基锡催化剂、0～10份的羧酸铋类催化剂，0～5份的环烷酸锌，0～ 5份的五甲基二亚丙基三胺，0～10份的四甲基乙二胺以及0～8份的双吗啉类有机胺 类催化剂。
优选的，所述脱水剂包括0～5份的固态脱水剂和0～3份的液态脱水剂，所述固 态脱水剂包括分子筛或者重钙氧化钙，所述液态脱水剂包括对甲苯磺酰异氰酸酯小分 子除水剂。
优选的，所述增塑剂为邻苯二甲酸二异壬酯、邻苯二甲酸二异癸酯、氯化石蜡、 植物油脂、己二酸二辛脂、苯甲酸二醇酯、磷酸三辛酯以及烷基磺酸苯酯中的任意一 种。
优选的，所述化学消泡剂包括0～5份的氧化镁和0～2份的氧化钙。
一种单组分无溶剂抗流挂聚氨酯防水涂料的生产系统，包括反应釜、捏合机、强制喂料机、双螺杆混合机以及包装机，所述反应釜和捏合机同时连接强制喂料机，所 述强制喂料机连接双螺杆混合机，所述双螺杆混合机连接包装机。
优选的，所述强制喂料机设有第一投料口、第二投料口、第三投料口和出料口。
优选的，所述第一投料口连接反应釜，所述第二投料口连接捏合机、所述第三投料口为投加原料，所述出料口连接双螺杆混合机。
优选的，所述反应釜、捏合机和双螺杆混合机可升降温及抽真空。
一种单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，包括以下步骤：
(1)制备聚氨酯预聚体：
A、在反应釜内加入配方量的复合树脂二元醇，在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入配方量的复合异氰酸酯，然后升温至80±2℃，在搅拌下通氮气保护并反应1.5h；
C、继续往反应釜内加入配方量的聚醚三元醇，反应1h后，测定预聚体的NCO含 量，若达到理论值，则中止反应，反之则继续反应；
D、在反应釜内加入配方量的脂肪族胺类扩链剂，继续反应1h，即得聚氨酯预聚体；
(2)真空脱水：分别将配方量的重质填料以及纳米填料，在160℃以及-0.1MPA 真空条件下通过捏合机脱水到0.05％以下的水分含量后，存储备用；
(3)合成聚氨酯防水涂料：
A、按照计量分别将配方量的聚氨酯预聚体、重质填料、纳米填料、增塑剂、脱水剂、活性稀释剂、分散剂、物理消泡剂以及复合催化剂加入到强制喂料机中，混合均 匀；
B、将强制喂料机中的物料按照计量量加入到双螺杆混合机，在25℃以下以及 -0.09～0.1MPa的真空度的条件下，进行搅拌、分散、研磨和脱泡，当通过刮板细度 仪测试物料细度达到50um以上时，即得成品；
(4)包装：根据生产需要将成品通过包装机进行产品包装。
优选的，所述步骤(1)中复合树脂二元醇在真空脱水后控制水分含量在0.05％以下。
优选的，所述步骤(2)中还包括加入化学消泡剂并一起通过捏合机脱水。
优选的，所述步骤(2)中还包括加入固态脱水剂并一起通过捏合机脱水。
本发明的有益效果在于：
(1)本发明设计的聚氨酯防水涂料，不仅能够应用在立面或斜坡面上，防流挂性能强，而且能保持良好的物理性能；
(2)本发明通过控制纳米填料和重质填料的配比，更加改善了涂料的防流挂性能强和其他物理性能；
(3)本发明中采用分步聚合方式制备的聚氨酯预聚体，粘度较小，且由于分步聚合的预聚体中“软段”(聚醚链段)与“硬段”(异氰酸酯)的相对规整，聚合度较高， 分子量分部较窄，且较低的粘度便于生产的控制；
(4)通过各种物料先预处理的方式精确控制了各类原材料的水分对体系的影响，可以降低水分在体系反应混合过程中，交联增加体系粘度；
(5)通过双螺杆自动生产线系统实现物料的连续自动化生产，提高生产效率，确保产品品质。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本 领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本 发明保护的范围。
在以下实施例中，如无特别说明，所有原料均来自于商购或者通过本领域的常规方法制备而得。
现对实施例中出现的原料名称做以下说明：
1、DL-400：为分子量为400的聚醚二元醇，产自于山东蓝星东大有限公司。
2、DL-1000D：为分子量为1000的聚醚二元醇，产自于山东蓝星东大有限公司。
3、DL-2000D：为分子量为2000的聚醚二元醇，产自于山东蓝星东大有限公司。
4、EP-330N：为分子量为5000的聚醚三元醇，产自于山东蓝星东大有限公司。
5、MDI-MI：为纯二苯基甲烷二异氰酸酯，产自德国巴斯夫公司。
6、MDI 103c：为改性二苯基甲烷二异氰酸酯，产自德国巴斯夫公司。
7、MDI-50：为2,4'-二苯基甲烷二异氰酸酯与4,4'-二苯基甲烷二异氰酸酯的混合物，常温下呈无色至粉色液体，产自万华化学集团股份有限公司。
8、TDI：为甲苯二异氰酸酯，产自德国拜耳公司。
9、IPDI：为异佛尔酮二异氰酸酯，产自万华化学集团股份有限公司。
10、066N：为物理消泡剂，产自毕克化学公司。
11、5500：为物理消泡剂，产自德谦化学有限公司。
12、DINP：化学名称为邻苯二甲酸二异壬酯的增塑剂，产自台湾联成化学科技有限公 司。
13、WD50：硅烷偶联剂，产自湖北武大有机硅新材料股份有限公司。
14、f108：涂料分散剂，产自杭州临安涂料助剂化工有限公司。
实施例1
本实施例提供了一种单组分无溶剂抗流挂聚氨酯防水涂料，所述涂料的组分及各组分的质量如下表：
Figure BDA0002321846820000051
所述聚氨酯预聚体的组分及各组分的质量如下表：
Figure BDA0002321846820000052
Figure BDA0002321846820000061
上述配方中，所述纳米填料选取重量比为0.05/1的气相二氧化硅和纳米碳酸钙。
该单组分无溶剂抗流挂聚氨酯防水涂料的生产系统，包括反应釜、捏合机、强制喂料机、双螺杆混合机以及包装机，所述反应釜和捏合机同时连接强制喂料机，所述 强制喂料机连接双螺杆混合机，所述双螺杆混合机连接包装机。
所述强制喂料机设有第一投料口、第二投料口、第三投料口和出料口。
所述第一投料口连接反应釜，所述第二投料口连接捏合机、所述第三投料口为投加原料，所述出料口连接双螺杆混合机。
所述反应釜、捏合机和双螺杆混合机可升降温及抽真空。
该单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，包括以下步骤：
(1)制备聚氨酯预聚体：
A、在反应釜内分别加入50kg的DL-400、50kg的DL-1000以及150kg的DL-2000， 在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入50kg的MDI-MI和50kg的MDI 103c，然后升温至80±2℃，在搅拌下通氮气保护并反应1.5h；
C、继续往反应釜内加入50kg的EP-330N，反应1h后，测定预聚体的NCO含量， 若达到理论值，则中止反应，反之则继续反应；
D、在反应釜内加入2kg的4,4’双仲丁氨基二环己基甲烷，继续反应1h，即得聚 氨酯预聚体；
(2)真空脱水：分别将150kg的重质填料、5kg的气相二氧化硅、100kg的纳米 碳酸钙、0.5kg的氧化镁以及0.5kg的氧化钙，在160℃以及-0.1MPA真空条件下通过 捏合机脱水到0.05％以下的水分含量后，存储备用；
(3)合成聚氨酯防水涂料：
A、按照计量分别将402kg的聚氨酯预聚体、150kg的重质填料、5kg的气相二氧 化硅、100kg的纳米碳酸钙、0.5kg的氧化镁、0.5kg的氧化钙、100kg的DINP、0.5kg 的对甲苯磺酰异氰酸酯小分子除水剂、20kg的活性稀释剂、1kg的WD50、2kg的066N、 0.5kg的二月桂酸二丁基锡、0.3kg的五甲基二亚丙基三胺以及0.2kg的辛酸亚锡加入 到强制喂料机中，混合均匀；
B、将强制喂料机中的物料按照计量量加入到双螺杆混合机，在25℃以下以及 -0.09～0.1MPa的真空度的条件下，进行搅拌、分散、研磨和脱泡，当通过刮板细度 仪测试物料细度达到50um以上时，即得成品；
(4)包装：根据生产需要将成品通过包装机进行产品包装。
其中，所述步骤(1)中的DL-400、DL-1000以及DL-2000在真空脱水后控制水分 含量在0.05％以下。
实施例2
本实施例提供了一种单组分无溶剂抗流挂聚氨酯防水涂料，所述涂料的组分及各组分的质量如下表：
Figure BDA0002321846820000071
所述聚氨酯预聚体的组分及各组分的质量如下表：
Figure BDA0002321846820000072
上述配方中，所述纳米填料选取石膏晶须和纳米碳酸钙。
该单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，包括以下步骤：
(1)制备聚氨酯预聚体：
A、在反应釜内分别加入80kg的DL-400、80kg的DL-1000以及50kg的DL-2000， 在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入80kg的MDI-50和50kg的TDI，然后升温至80±2℃，在搅拌下通氮气保护并反应1.5h；
C、继续往反应釜内加入90kg的EP-330N，反应1h后，测定预聚体的NCO含量， 若达到理论值，则中止反应，反之则继续反应；
D、在反应釜内加入2kg的4,4’双仲丁氨基二环己基甲烷，继续反应1h，即得聚 氨酯预聚体；
(2)真空脱水：分别将100kg的重质填料、10kg的石膏晶须、190kg的纳米碳酸 钙、1kg的氧化镁以及0.5kg的分子筛，在160℃以及-0.1MPA真空条件下通过捏合机 脱水到0.05％以下的水分含量后，存储备用；
(3)合成聚氨酯防水涂料：
A、按照计量分别将432kg的聚氨酯预聚体、100kg的重质填料、10kg的石膏晶须、190kg的纳米碳酸钙、1kg的氧化镁、0.5kg的分子筛、50kg的DINP、1kg的对甲苯 磺酰异氰酸酯小分子除水剂、20kg的活性稀释剂、1kg的f108、2kg的5500、0.5kg 的二月桂酸二丁基锡、0.5kg的五甲基二亚丙基三胺以及0.5kg的辛酸亚锡加入到强 制喂料机中，混合均匀；
B、将强制喂料机中的物料按照计量量加入到双螺杆混合机，在25℃以下以及 -0.09～0.1MPa的真空度的条件下，进行搅拌、分散、研磨和脱泡，当通过刮板细度 仪测试物料细度达到50um以上时，即得成品；
(4)包装：根据生产需要将成品通过包装机进行产品包装。
实施例3
本实施例提供了一种单组分无溶剂抗流挂聚氨酯防水涂料，所述涂料的组分及各组分的质量如下表：
Figure BDA0002321846820000081
Figure BDA0002321846820000091
所述聚氨酯预聚体的组分及各组分的质量如下表：
Figure BDA0002321846820000092
上述配方中，所述纳米填料选取石膏晶须、纳米碳酸钙和疏水改性气硅。
该单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，包括以下步骤：
(1)制备聚氨酯预聚体：
A、在反应釜内分别加入100kg的DL-400、20kg的DL-1000以及100kg的DL-2000， 在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入100kg的IPDI和50kg的MDI 103c，然后升温至80±2℃，在搅拌下通氮气保护并反应1.5h；
C、继续往反应釜内加入20kg的EP-330N，反应1h后，测定预聚体的NCO含量， 若达到理论值，则中止反应，反之则继续反应；
D、在反应釜内加入3kg的4,4’双仲丁氨基二环己基甲烷，继续反应1h，即得聚 氨酯预聚体；
(2)真空脱水：分别将200kg的重质填料、5kg的石膏晶须、200kg的纳米碳酸 钙、5kg的疏水改性气硅、3kg的氧化镁以及2kg的分子筛，在160℃以及-0.1MPA真 空条件下通过捏合机脱水到0.05％以下的水分含量后，存储备用；
(3)合成聚氨酯防水涂料：
A、按照计量分别将393kg的聚氨酯预聚体、200kg的重质填料、5kg的石膏晶须、200kg的纳米碳酸钙、5kg的疏水改性气硅、3kg的氧化镁、2kg的分子筛、150kg的 氯化石蜡、50kg的活性稀释剂、3kg的f108、1kg的5500、1kg的066N、0.1kg的五 甲基二亚丙基三胺以及0.5kg的辛酸亚锡加入到强制喂料机中，混合均匀；
B、将强制喂料机中的物料按照计量量加入到双螺杆混合机，在25℃以下以及 -0.09～0.1MPa的真空度的条件下，进行搅拌、分散、研磨和脱泡，当通过刮板细度 仪测试物料细度达到50um以上时，即得成品；
(4)包装：根据生产需要将成品通过包装机进行产品包装。
通过比较实施例1～3生产出来的单组分无溶剂抗流挂聚氨酯防水涂料，其各项物理性能如下表：
Figure BDA0002321846820000101
Figure BDA0002321846820000111
通过上表中实施例1～3的涂料的物理性能，与标准参数做对比，可知通过上述实施例生产的聚氨酯防水涂料的物理性能均符合标准，且刮涂施工情况良好，最高可依 次厚涂2mm不流淌。
本发明的有益效果在于：
(1)本发明设计的聚氨酯防水涂料，不仅能够应用在立面或斜坡面上，防流挂性能强，而且能保持良好的物理性能；
(2)通过各种物料先预处理的方式精确控制了各类原材料的水分对体系的影响，可以降低水分在体系反应混合过程中，交联增加体系粘度；
(3)通过双螺杆自动生产线系统实现物料的连续自动化生产，提高生产效率，确保产品品质。
对比实施例1
本对比实施例改变聚醚三元醇的加入方式，所述涂料的组分及各组分的质量与实施例1一致，仅将该单组分无溶剂抗流挂聚氨酯防水涂料的生产方法的步骤(1)制备 聚氨酯预聚体改为：
A、在反应釜内分别加入50kg的DL-400、50kg的DL-1000、150kg的DL-2000以 及，50kg的EP-330N，在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入50kg的MDI-MI和50kg的MDI 103c，然后升温至80±2℃，在搅拌下通氮气保护并反应2.5h后，测定 预聚体的NCO含量，若达到理论值，则中止反应，反之则继续反应；
C、在反应釜内加入2kg的4,4’双仲丁氨基二环己基甲烷，继续反应1h，即得聚 氨酯预聚体。
通过对比实施例1得出的涂料的物理参数与实施例1对比如下：
Figure BDA0002321846820000112
Figure BDA0002321846820000121
通过实施例1和对比实施例1中生产的聚氨酯防水涂料的物理性能比较可知，对比实施例1的撕裂强度(13N/mm)低于标准值(17N/mm)，其他物理性能虽然均符合 标准，但仍低于实施例1的性能参数，且涂料过于粘稠，刮涂施工情况不佳。
由此可看出，采用分步聚合方式制备聚氨酯预聚体而得到的聚氨酯防水涂料，性能优于对比实施例1中一步聚合方式制备的涂料。采用分步聚合方式制备聚氨酯预聚 体，粘度较小，且由于分步聚合的预聚体中“软段”(聚醚链段)与“硬段”(异氰酸 酯)的相对规整，聚合度较高，分子量分部较窄，且较低的粘度便于生产的控制。
对比实施例2和3
本对比实施例2和3中，仅改变气相二氧化硅和纳米碳酸钙的重量比，所述涂料 的其他组分及各组分的质量与实施例1一致。气相二氧化硅和纳米碳酸钙的重量比及 质量如下表所示：
Figure BDA0002321846820000122
Figure BDA0002321846820000131
通过实施例1和对比实施例2和3中生产的聚氨酯防水涂料的施工情况进行比较可知，对比实施例2中当气相二氧化硅和纳米碳酸钙的重量比小于规定范围为0.038/1 时，虽然各项物理性能参数均符合标准，但仍差于实施例1，且粘度高难以施工；对 比对比实施例3中当气相二氧化硅和纳米碳酸钙的重量比大于规定范围为0.083/1时， 其撕裂强度值(14N/mm)低于标准值(≥15N/mm)，虽其他各项物理性能参数均符合 标准，但施工情况不好，一次厚涂1mm流淌1cm。
由此可看出，当气相二氧化硅和纳米碳酸钙的重量比超出0.045～0.08:1这个范围会，不仅会影响涂料的物理性能，且会出现施工不好的情况。本发明通过控制纳米 填料和重质填料的配比，更加改善了涂料的防流挂性能强和其他物理性能。
最后应说明的是，以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依 然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等 同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应 包含在本发明的保护范围之内。

Claims (17)

1.一种单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述聚氨酯防水涂料的组分按重量份数计为：聚氨酯预聚体25～50份、重质填料10～20份、纳米填料10～20份、复合催化剂0.05～0.2份、物理消泡剂0.1～0.3份、化学消泡剂0.1～0.3份、增塑剂5～20份、分散剂0.1～0.3份、脱水剂0.05～0.2份以及活性稀释剂2～5份，所述聚氨酯预聚体由19～72份的复合树脂二元醇、1～10份聚醚三元醇、0～32份复合异氰酸酯以及0.1～0.5份脂肪族胺类扩链剂反应而成，所述纳米填料为石膏晶须、气相二氧化硅、纳米碳酸钙、纳米氮化铝、纳米氮化硼、纳米硼酸铝以及疏水改性气硅的任意组合，所述气相二氧化硅和纳米碳酸钙的重量比为0.045～0.08:1。
2.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述复合树脂二元醇的组分按重量份数计为：400分子量的聚环氧丙烷醚二元醇8～22份、1000分子量的聚环氧丙烷醚二元醇3～18份以及2000分子量的聚环氧丙烷醚二元醇8～32份。
3.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述聚醚三元醇为3000～5000分子量的聚环氧丙烷醚三元醇。
4.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述复合异氰酸酯包括0～10份的第一异氰酸酯和0～8份的第二异氰酸酯，所述第一异氰酸酯为纯二苯基甲烷二异氰酸酯、异佛尔酮二异氰酸酯以及2,4'-二苯基甲烷二异氰酸酯与4,4'-二苯基甲烷二异氰酸酯的混合物中的任意一种，所述第二异氰酸酯为改性二苯基甲烷二异氰酸酯、六亚甲基二异氰酸酯以及甲苯二异氰酸酯中的任意一种。
5.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述活性稀释剂为噁唑烷活性稀释剂。
6.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述复合催化剂包括0～10份的二月桂酸二丁基锡、0～3份的辛酸亚锡、0～5份的环保非丁基锡催化剂、0～10份的羧酸铋类催化剂，0～5份的环烷酸锌，0～5份的五甲基二亚丙基三胺，0～10份的四甲基乙二胺以及0～8份的双吗啉类有机胺类催化剂。
7.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：所述脱水剂包括0～5份的固态脱水剂和0～3份的液态脱水剂，所述固态脱水剂包括分子筛或者重钙氧化钙，所述液态脱水剂包括对甲苯磺酰异氰酸酯小分子除水剂。
8.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：
所述增塑剂为邻苯二甲酸二异壬酯、邻苯二甲酸二异癸酯、氯化石蜡、植物油脂、
己二酸二辛脂、苯甲酸二醇酯、磷酸三辛酯以及烷基磺酸苯酯中的任意一种。
9.根据权利要求1所述的单组分无溶剂抗流挂聚氨酯防水涂料，其特征在于：
所述化学消泡剂包括0～5份的氧化镁和0～2份的氧化钙。
10.一种如权利要求1～9任一项权利要求所述的单组分无溶剂抗流挂聚氨酯
防水涂料的生产系统，其特征在于：包括反应釜、捏合机、强制喂料机、双螺杆混合机以及包装机，所述反应釜和捏合机同时连接强制喂料机，所述强制喂料机连接双螺杆混合机，所述双螺杆混合机连接包装机。
11.根据权利要求10所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产系统，其特征在于：所述强制喂料机设有第一投料口、第二投料口、第三投料口和出料口。
12.根据权利要求11所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产系统，其特征在于：所述第一投料口连接反应釜，所述第二投料口连接捏合机、所述第三投料口为投加原料，所述出料口连接双螺杆混合机。
13.根据权利要求10所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产系统，其特征在于：所述反应釜、捏合机和双螺杆混合机可升降温及抽真空。
14.一种如权利要求10所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，其特征在于：包括以下步骤：
(1)制备聚氨酯预聚体：
A、在反应釜内加入配方量的复合树脂二元醇，在搅拌状态下逐步升温至120℃，真空脱水2h；
B、将反应釜内的温度降低至60℃以下，继续往反应釜内加入配方量的复合异氰酸酯，然后升温至80±2℃，在搅拌下通氮气保护并反应1.5h；
C、继续往反应釜内加入配方量的聚醚三元醇，反应1h后，测定预聚体的NCO含量，若达到理论值，则中止反应，反之则继续反应；
D、在反应釜内加入配方量的脂肪族胺类扩链剂，继续反应1h，即得聚氨酯预聚体；
(2)真空脱水：分别将配方量的重质填料以及纳米填料，在160℃以及-0.1MPA真空条件下通过捏合机脱水到0.05％以下的水分含量后，存储备用；
(3)合成聚氨酯防水涂料：
A、按照计量分别将配方量的聚氨酯预聚体、重质填料、纳米填料、增塑剂、脱水剂、活性稀释剂、分散剂、物理消泡剂以及复合催化剂加入到强制喂料机中，混合均匀；
B、将强制喂料机中的物料按照计量量加入到双螺杆混合机，在25℃以下以及-0.09～0.1MPa的真空度的条件下，进行搅拌、分散、研磨和脱泡，当通过刮板细度仪测试物料细度达到50um以上时，即得成品；
(4)包装：根据生产需要将成品通过包装机进行产品包装。
15.根据权利要求14所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，其特征在于：所述步骤(1)中复合树脂二元醇在真空脱水后控制水分含量在0.05％以下。
16.根据权利要求14所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，其特征在于：所述步骤(2)中还包括加入化学消泡剂并一起通过捏合机脱水。
17.根据权利要求14所述的单组分无溶剂抗流挂聚氨酯防水涂料的生产方法，其特征在于：所述步骤(2)中还包括加入固态脱水剂并一起通过捏合机脱水。
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