CN105838236A - 一种高强度聚氨酯防水涂料 - Google Patents

一种高强度聚氨酯防水涂料 Download PDF

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CN105838236A
CN105838236A CN201610249143.5A CN201610249143A CN105838236A CN 105838236 A CN105838236 A CN 105838236A CN 201610249143 A CN201610249143 A CN 201610249143A CN 105838236 A CN105838236 A CN 105838236A
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龚文祥
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Chuzhou Huanqiu Polyurethane Technology Co Ltd
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Abstract

本发明公开了一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯50‑55份，短油度醇酸树脂26‑29份，三聚磷酸钾7‑10份，硬脂酸锌3‑5份，木质素磺酸钙0.5‑0.8份，膨润土5‑8份，轻质碳酸钙3‑6份，滑石粉2‑5份，乙酸丁酯4‑6份，环己酮1‑3份，消泡剂0.1‑0.4份，流平剂0.2‑0.5份，分散剂0.3‑0.6份。本发明提出的高强度聚氨酯防水涂料，强度高、附着力好，具备优异的防水性能。

Description

一种高强度聚氨酯防水涂料
技术领域
本发明涉及防水涂料技术领域，尤其涉及一种高强度聚氨酯防水涂料。
背景技术
随着国民经济的快速发展，建筑工程领域的日新月异也对一些传统领域带来新的挑战，防水涂料就是其中之一。防水涂料涂覆在建筑物表面，能够有效阻挡水的侵蚀，因此广受推崇。防水涂料也有其弊端，特别是其强度不高、耐候性不佳，涂覆后易遭到破坏，影响防水效果。
发明内容
基于背景技术存在的技术问题，本发明提出了一种高强度聚氨酯防水涂料，强度高、附着力好，具备优异的防水性能。
本发明提出的一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯50-55份，短油度醇酸树脂26-29份，三聚磷酸钾7-10份，硬脂酸锌3-5份，木质素磺酸钙0.5-0.8份，膨润土5-8份，轻质碳酸钙3-6份，滑石粉2-5份，乙酸丁酯4-6份，环己酮1-3份，消泡剂0.1-0.4份，流平剂0.2-0.5份，分散剂0.3-0.6份。
优选地，高强度疏水聚氨酯的制备方法如下：
S1、将苯酚、甲醛水溶液混合均匀后，升高温度，接着滴加氨水，继续升温，保温后，滴加蓖麻油，继续升温，保温后，减压蒸馏后，降温，接着加入乙二醇，保温得到蓖麻油改性酚醛树脂；
S2、将蓖麻油改性酚醛树脂、二苯基甲烷二异氰酸酯三聚体、一缩二丙二醇、三羟甲基乙烷、二月桂酸二丁锡和丙酮混合均匀后，升高温度，抽真空，接着升高温度，保温后，继续升高温度，熟化得到高强度疏水聚氨酯。
优选地，高强度疏水聚氨酯的制备方法如下：
S1、将苯酚、质量分数为30-35wt％的甲醛水溶液混合均匀后，升高温度至50-55℃，接着滴加质量分数为为30-35wt％的氨水，滴加时间为20-25min，继续升温至62-65℃，保温15-18min后，滴加蓖麻油，滴加时间为30-35min，继续升温至75-78℃，保温10-12h后，减压蒸馏后，降温至45-48℃，接着加入乙二醇，保温40-50min得到蓖麻油改性酚醛树脂；
S2、将蓖麻油改性酚醛树脂、二苯基甲烷二异氰酸酯三聚体、一缩二丙二醇、三羟甲基乙烷、二月桂酸二丁锡和丙酮混合均匀后，升高温度至80-83℃，抽真空，接着升高温度至90-95℃，保温1-2h后，继续升高温度至100-105℃，熟化2-3h得到高强度疏水聚氨酯。
优选地，高强度疏水聚氨酯的制备方法如下：
S1、按重量份将80-85份苯酚、78-82份质量分数为30-35wt％的甲醛水溶液混合均匀后，升高温度至50-55℃，接着滴加24-26份质量分数为为30-35wt％的氨水，滴加时间为20-25min，继续升温至62-65℃，保温15-18min后，滴加18-22份蓖麻油，滴加时间为30-35min，继续升温至75-78℃，保温10-12h后，减压蒸馏后，降温至45-48℃，接着加入35-40份乙二醇，保温40-50min得到蓖麻油改性酚醛树脂；
S2、按重量份将62-65份蓖麻油改性酚醛树脂、20-30份二苯基甲烷二异氰酸酯三聚体、30-35份一缩二丙二醇、0.2-0.4份三羟甲基乙烷、0.05-0.1份二月桂酸二丁锡和丙酮混合均匀后，升高温度至80-83℃，抽真空，接着升高温度至90-95℃，保温1-2h后，继续升高温度至100-105℃，熟化2-3h得到高强度疏水聚氨酯。
优选地，高强度疏水聚氨酯和短油度醇酸树脂的重量比为52-53：27-28。
优选地，三聚磷酸钾、硬脂酸锌、木质素磺酸钙、膨润土、轻质碳酸钙、滑石粉的重量比为8-9：3.5-4.5：0.6-0.7：6-7：4-5：3-4。
本发明高强度疏水聚氨酯中，在酚醛树脂制取过程添加蓖麻油，能够将蓖麻油中的不饱和键引入到酚醛树脂分子结构中，并交联成立体网状结构，从而大幅提高本发明的强度和涂刷性能，同时提高本发明的致密性，从而增强疏水性能，达到防水效果；而蓖麻油改性酚醛树脂、二苯基甲烷二异氰酸酯三聚体能够在小分子扩链剂一缩二丙二醇、交联剂三羟甲基乙烷、催化剂二月桂酸二丁锡作用下，快速交联形成强度高、韧性好、防水性能优异的高强度疏水聚氨酯；本发明在制备过程中，使用高强度疏水聚氨酯、短油度醇酸树脂作为成膜物质，能够充分交联互补，形成疏水性能极佳的涂膜，从而大大提高本发明的防水性能；添加的三聚磷酸钾和硬脂酸锌能够分散在本发明的网状结构中，增强本发明的防火性能和强度；而木质素磺酸钙具有良好的润湿与分散性，可以提高防水涂料的施工性能，改善涂膜的柔韧性；膨润土、轻质碳酸钙、滑石粉的添加，大幅改善了本发明的稠度和防触变性，它们在本发明中均匀分布，延长了本发明的使用寿命和保存时间，使本发明在固化后具有高强度、高韧性和优异的防水性能。
具体实施方式
下面，通过具体实施例对本发明的技术方案进行详细说明。
实施例1
本发明提出的一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯55份，短油度醇酸树脂26份，三聚磷酸钾10份，硬脂酸锌3份，木质素磺酸钙0.8份，膨润土5份，轻质碳酸钙6份，滑石粉2份，乙酸丁酯6份，环己酮1份，消泡剂0.4份，流平剂0.2份，分散剂0.6份。
高强度疏水聚氨酯的制备方法如下：
S1、按重量份将80份苯酚、82份质量分数为30wt％的甲醛水溶液混合均匀后，升高温度至55℃，接着滴加24份质量分数为为35wt％的氨水，滴加时间为20min，继续升温至65℃，保温15min后，滴加22份蓖麻油，滴加时间为30min，继续升温至78℃，保温10h后，减压蒸馏后，降温至48℃，接着加入35份乙二醇，保温50min得到蓖麻油改性酚醛树脂；
S2、按重量份将62份蓖麻油改性酚醛树脂、30份二苯基甲烷二异氰酸酯三聚体、30份一缩二丙二醇、0.4份三羟甲基乙烷、0.05份二月桂酸二丁锡和丙酮混合均匀后，升高温度至83℃，抽真空，接着升高温度至90℃，保温2h后，继续升高温度至100℃，熟化3h得到高强度疏水聚氨酯。
实施例2
本发明提出的一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯50份，短油度醇酸树脂29份，三聚磷酸钾7份，硬脂酸锌5份，木质素磺酸钙0.5份，膨润土8份，轻质碳酸钙3份，滑石粉5份，乙酸丁酯4份，环己酮3份，消泡剂0.1份，流平剂0.5份，分散剂0.3份。
高强度疏水聚氨酯的制备方法如下：
S1、按重量份将85份苯酚、78份质量分数为35wt％的甲醛水溶液混合均匀后，升高温度至50℃，接着滴加26份质量分数为为30wt％的氨水，滴加时间为25min，继续升温至62℃，保温18min后，滴加18份蓖麻油，滴加时间为35min，继续升温至75℃，保温12h后，减压蒸馏后，降温至45℃，接着加入40份乙二醇，保温40min得到蓖麻油改性酚醛树脂；
S2、按重量份将65份蓖麻油改性酚醛树脂、20份二苯基甲烷二异氰酸酯三聚体、35份一缩二丙二醇、0.2份三羟甲基乙烷、0.1份二月桂酸二丁锡和丙酮混合均匀后，升高温度至80℃，抽真空，接着升高温度至95℃，保温1h后，继续升高温度至105℃，熟化2h得到高强度疏水聚氨酯。
实施例3
本发明提出的一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯53份，短油度醇酸树脂27份，三聚磷酸钾9份，硬脂酸锌3.5份，木质素磺酸钙0.7份，膨润土6份，轻质碳酸钙5份，滑石粉3份，乙酸丁酯5份，环己酮1.5份，消泡剂0.3份，流平剂0.3份，分散剂0.5份。
高强度疏水聚氨酯的制备方法如下：
S1、按重量份将82份苯酚、81份质量分数为32wt％的甲醛水溶液混合均匀后，升高温度至53℃，接着滴加24份质量分数为为33wt％的氨水，滴加时间为22min，继续升温至64℃，保温16min后，滴加20份蓖麻油，滴加时间为31min，继续升温至77℃，保温10.5h后，减压蒸馏后，降温至47℃，接着加入36份乙二醇，保温46min得到蓖麻油改性酚醛树脂；
S2、按重量份将63份蓖麻油改性酚醛树脂、26份二苯基甲烷二异氰酸酯三聚体、31份一缩二丙二醇、0.3份三羟甲基乙烷、0.06份二月桂酸二丁锡和丙酮混合均匀后，升高温度至82℃，抽真空，接着升高温度至93℃，保温2h后，继续升高温度至102℃，熟化3h得到高强度疏水聚氨酯。
实施例4
本发明提出的一种高强度聚氨酯防水涂料，其原料按重量份包括：高强度疏水聚氨酯52份，短油度醇酸树脂28份，三聚磷酸钾8份，硬脂酸锌4.5份，木质素磺酸钙0.6份，膨润土7份，轻质碳酸钙4份，滑石粉4份，乙酸丁酯4.5份，环己酮2份，消泡剂0.2份，流平剂0.4份，分散剂0.4份。
高强度疏水聚氨酯的制备方法如下：
S1、按重量份将83份苯酚、79份质量分数为34wt％的甲醛水溶液混合均匀后，升高温度至51℃，接着滴加25份质量分数为为31wt％的氨水，滴加时间为24min，继续升温至63℃，保温17min后，滴加19份蓖麻油，滴加时间为33min，继续升温至76℃，保温11h后，减压蒸馏后，降温至46℃，接着加入38份乙二醇，保温43min得到蓖麻油改性酚醛树脂；
S2、按重量份将64份蓖麻油改性酚醛树脂、24份二苯基甲烷二异氰酸酯三聚体、33份一缩二丙二醇、0.2份三羟甲基乙烷、0.08份二月桂酸二丁锡和丙酮混合均匀后，升高温度至81℃，抽真空，接着升高温度至94℃，保温1.5h后，继续升高温度至103℃，熟化2.5h得到高强度疏水聚氨酯。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (6)

1.一种高强度聚氨酯防水涂料，其特征在于，其原料按重量份包括：高强度疏水聚氨酯50-55份，短油度醇酸树脂26-29份，三聚磷酸钾7-10份，硬脂酸锌3-5份，木质素磺酸钙0.5-0.8份，膨润土5-8份，轻质碳酸钙3-6份，滑石粉2-5份，乙酸丁酯4-6份，环己酮1-3份，消泡剂0.1-0.4份，流平剂0.2-0.5份，分散剂0.3-0.6份。
2.根据权利要求1所述高强度聚氨酯防水涂料，其特征在于，高强度疏水聚氨酯的制备方法如下：
S1、将苯酚、甲醛水溶液混合均匀后，升高温度，接着滴加氨水，继续升温，保温后，滴加蓖麻油，继续升温，保温后，减压蒸馏后，降温，接着加入乙二醇，保温得到蓖麻油改性酚醛树脂；
S2、将蓖麻油改性酚醛树脂、二苯基甲烷二异氰酸酯三聚体、一缩二丙二醇、三羟甲基乙烷、二月桂酸二丁锡和丙酮混合均匀后，升高温度，抽真空，接着升高温度，保温后，继续升高温度，熟化得到高强度疏水聚氨酯。
3.根据权利要求1或2所述高强度聚氨酯防水涂料，其特征在于，高强度疏水聚氨酯的制备方法如下：
S1、将苯酚、质量分数为30-35wt％的甲醛水溶液混合均匀后，升高温度至50-55℃，接着滴加质量分数为为30-35wt％的氨水，滴加时间为20-25min，继续升温至62-65℃，保温15-18min后，滴加蓖麻油，滴加时间为30-35min，继续升温至75-78℃，保温10-12h后，减压蒸馏后，降温至45-48℃，接着加入乙二醇，保温40-50min得到蓖麻油改性酚醛树脂；
S2、将蓖麻油改性酚醛树脂、二苯基甲烷二异氰酸酯三聚体、一缩二丙二醇、三羟甲基乙烷、二月桂酸二丁锡和丙酮混合均匀后，升高温度至80-83℃，抽真空，接着升高温度至90-95℃，保温1-2h后，继续升高温度至100-105℃，熟化2-3h得到高强度疏水聚氨酯。
4.根据权利要求1-3任一项所述高强度聚氨酯防水涂料，其特征在于，高强度疏水聚氨酯的制备方法如下：
S1、按重量份将80-85份苯酚、78-82份质量分数为30-35wt％的甲醛水溶液混合均匀后，升高温度至50-55℃，接着滴加24-26份质量分数为为30-35wt％的氨水，滴加时间为20-25min，继续升温至62-65℃，保温15-18min后，滴加18-22份蓖麻油，滴加时间为30-35min，继续升温至75-78℃，保温10-12h后，减压蒸馏后，降温至45-48℃，接着加入35-40份乙二醇，保温40-50min得到蓖麻油改性酚醛树脂；
S2、按重量份将62-65份蓖麻油改性酚醛树脂、20-30份二苯基甲烷二异氰酸酯三聚体、30-35份一缩二丙二醇、0.2-0.4份三羟甲基乙烷、0.05-0.1份二月桂酸二丁锡和丙酮混合均匀后，升高温度至80-83℃，抽真空，接着升高温度至90-95℃，保温1-2h后，继续升高温度至100-105℃，熟化2-3h得到高强度疏水聚氨酯。
5.根据权利要求1-4任一项所述高强度聚氨酯防水涂料，其特征在于，高强度疏水聚氨酯和短油度醇酸树脂的重量比为52-53：27-28。
6.根据权利要求1-5任一项所述高强度聚氨酯防水涂料，其特征在于，三聚磷酸钾、硬脂酸锌、木质素磺酸钙、膨润土、轻质碳酸钙、滑石粉的重量比为8-9：3.5-4.5：0.6-0.7：6-7：4-5：3-4。
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