CN106118434B - 高铁用阻燃抗菌聚氨酯防水涂料 - Google Patents

高铁用阻燃抗菌聚氨酯防水涂料 Download PDF

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CN106118434B
CN106118434B CN201610656375.2A CN201610656375A CN106118434B CN 106118434 B CN106118434 B CN 106118434B CN 201610656375 A CN201610656375 A CN 201610656375A CN 106118434 B CN106118434 B CN 106118434B
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王斐芬
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NINGXIA NINGDONG RUIHUA NEW MATERIAL TECHNOLOGY CO., LTD.
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Abstract

本发明公开了一种高铁用阻燃抗菌聚氨酯防水涂料,所述高铁用阻燃抗菌聚氨酯防水涂料由下述重量份的原料制备而成:聚醚多元醇48‑52份、1,6‑己二异氰酸酯12‑18份、己二酸二辛脂0.4‑0.8份、二甲苯12‑18份、氯化聚乙烯12‑18份、硅粉1‑10份、滑石粉5‑15份、1,1,1‑三羟甲基丙烷4‑9份、辛酸亚锡0.3‑0.6份、无机抗菌剂2‑8份、阻燃剂1‑5份。本发明提供的高铁用阻燃抗菌聚氨酯防水涂料,施工工艺简单稳定,成本低廉,具有优异的机械性性能、防水性、阻燃性、抗菌性,可以应用于高铁的混凝土防护。

Description

高铁用阻燃抗菌聚氨酯防水涂料
技术领域
本发明涉及涂料技术领域,尤其涉及一种高铁用阻燃抗菌聚氨酯防水涂料。
背景技术
随着高速铁路事业的迅速发展和对高速铁路高标准要求,高速铁路用桥梁和高架桥日益增多。高铁桥梁中采用的是城市桥梁使用的简支梁的结构形式,桥梁采用的是钢筋混凝土材质,因此高铁桥梁中的钢筋混凝土的负弯矩和混凝土桥面在受到列车的重复荷载引起的高速震动、拉伸剪切和巨大冲击作用,并且受到外部所处环境的气候变化带来温度和湿度引起的收缩膨胀后,混凝上桥梁会产生一些细微的裂缝,而这些裂缝虽然不能在短期内降低结构的承载能力,但经过一定时期的使用以后势必在下雨或者桥面有大量积水时引起桥面出现渗水或者严重时出现漏水,导致钢筋的锈蚀,而水也能和混凝土中活性骨质和钙物质生成胶体硅钙睁,这种物质会使混凝土膨胀产生新的裂纹从而影响了高速铁路的长久使用性和安全性。
混凝土桥梁防水的设计不合理,防水材料在施工中质量低劣以及使用中的荷载过都会致使钢筋混凝土产生裂缝,而混凝土桥梁本身各种反应都有可能使混凝土桥梁产生各种各样的裂缝,如碱集料反应、冻融作用、干缩、硫酸盐作用等。在使用中由于存在这些裂缝,雨水或者桥面积水容易的就进入到了混凝土中,从而加重混凝土的冻融损坏,尤其是在北方地区,冬季经常使用的撒盐化雪方法会使冰盐水进入钢筋中导致钢筋腐蚀,减小了钢筋的承载面积,也就相当于降低了桥梁的钢筋使用率,最终损坏桥梁。
高铁桥梁混凝土桥面防水层是指铺筑在铁路轨道板与桥梁混凝土之间的薄层,这层防水层的主要作用是用来以阻挡雨水荷积水分进入主梁的混凝土内,防止水分锈蚀钢筋。因此可见防水材料具有双重的作用一方面起到了隔离水分的用作,另一方面由于具有本身粘性还能通过自身粘结性能与底层形成一个整体,增强抵抗外界荷载和变形的能力。
发明内容
针对现有技术中存在的上述不足,本发明所要解决的技术问题是提供一种高铁用阻燃抗菌聚氨酯防水涂料。
本发明目的是通过如下技术方案实现的:
一种高铁用阻燃抗菌聚氨酯防水涂料,由下述重量份的原料制备而成:聚醚多元醇48-52份、1,6-己二异氰酸酯12-18份、己二酸二辛脂0.4-0.8份、二甲苯12-18份、氯化聚乙烯12-18份、硅粉1-10份、滑石粉5-15份、1,1,1-三羟甲基丙烷4-9份、辛酸亚锡0.3-0.6份、无机抗菌剂2-8份、阻燃剂1-5份。
优选地,所述的无机抗菌剂为氯化银、钨酸银、碳酸锌中一种或多种的混合物。
更优选地,所述的无机抗菌剂由氯化银、钨酸银、碳酸锌混合而成,所述氯化银、钨酸银、碳酸锌的质量比为(1-3):(1-3):(1-3)。
优选地,所述的阻燃剂为磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯中一种或多种的混合物。
更优选地,所述的阻燃剂由磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯混合而成,所述磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯的质量比为(1-3):(1-3):(1-3)。
优选地,所述的聚醚多元醇的羟值为18-38mgKOH/g,可以为聚醚HPOP40、聚醚EP-330N(G)中一种或多种组成。
本发明还提供了上述高铁用阻燃抗菌聚氨酯防水涂料的制备方法,包括以下步骤:
(1)按配比将聚醚多元醇加入反应釜中,将温度升至100-110℃并减压至-0.092MPa~-0.096MPa真空脱水20-40分钟后去除真空,降温至75-85℃加入1,6-己二异氰酸酯以转速为300-600转/分搅拌2-3小时,然后加入己二酸二辛脂以转速为300-600转/分搅拌20-40分钟,降温出料,得到A组分;
(2)按配比将二甲苯、氯化聚乙烯加入反应釜中,将温度升至85-95℃加入硅粉、滑石粉、无机抗菌剂、阻燃剂以转速为300-600转/分搅拌10-20分钟,将温度升至120-130℃并减压至-0.092MPa~-0.096MPa真空脱水1.5-2.5小时后去除真空,然后降温至55-65℃加入1,1,1-三羟甲基丙烷以转速为300-600转/分搅拌20-40分钟,最后加入辛酸亚锡以转速为300-600转/分搅拌30-90分钟,降温出料,得到B份;
(3)将A组分与B组分搅拌混合均匀即得。
本发明提供的高铁用阻燃抗菌聚氨酯防水涂料,施工工艺简单稳定,成本低廉,具有优异的机械性性能、防水性、阻燃性、抗菌性,可以应用于高铁的混凝土防护。
具体实施方式
实施例中各原料介绍:
氯化聚乙烯,采用东莞禄顺化工科技有限公司提供的型号为135B的氯化聚乙烯,氯含量为36wt%。
1,6-己二异氰酸酯,CAS号:822-06-0。
己二酸二辛脂,CAS号:103-23-1。
二甲苯,CAS号:1330-20-7。
硅粉,采用上海耀前建筑涂装有限公司提供的牌号为SF96的硅粉。
滑石粉,CAS号:14807-96-6,采用上海亮江钛白化工制品有限公司生产的3000目的滑石粉。
1,1,1-三羟甲基丙烷,CAS号:77-99-6。
辛酸亚锡,CAS号:301-10-0。
聚醚HPOP40,采用山东蓝星东大化工有限责任公司提供的牌号为HPOP40,羟值为20-23mgKOH/g的聚醚多元醇。
聚醚EP-330N(G),采用山东蓝星东大化工有限责任公司提供的牌号为EP-330N(G),羟值为32.5-35.5mgKOH/g的聚醚多元醇。
氯化银,CAS号:7783-90-6,粒径800目。
钨酸银,CAS号:13465-93-5,粒径800目。
碳酸锌,CAS号:3486-35-9,粒径800目。
磷酸三苯酯,CAS号:115-86-6。
六溴环十二烷,CAS号:3194-55-6。
甲基磷酸二甲酯,CAS号:756-79-6。
实施例1
高铁用阻燃抗菌聚氨酯防水涂料原料(重量份):聚醚HPOP40 15份、聚醚EP-330N(G)35份、1,6-己二异氰酸酯14份、己二酸二辛脂0.6份、二甲苯16份、氯化聚乙烯15份、硅粉18份、滑石粉10份、1,1,1-三羟甲基丙烷6份、辛酸亚锡0.45份、无机抗菌剂3份、阻燃剂1.5份。
所述的无机抗菌剂由氯化银、钨酸银、碳酸锌按质量比为1:1:1搅拌混合均匀得到。
所述的阻燃剂由磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯按质量比为1:1:1搅拌混合均匀得到。
高铁用阻燃抗菌聚氨酯防水涂料的制备:
(1)按配比将聚醚HPOP40、聚醚EP-330N(G)加入反应釜中,将温度升至105℃并减压至-0.095MPa真空脱水30分钟后去除真空,降温至80℃并保持温度为80℃,加入1,6-己二异氰酸酯以转速为400转/分搅拌2.5小时,然后加入己二酸二辛脂以转速为400转/分搅拌30分钟,降温至30℃出料,得到A组分;
(2)按配比将二甲苯、氯化聚乙烯加入反应釜中,将温度升至90℃加入硅粉、滑石粉、无机抗菌剂、阻燃剂以转速为400转/分搅拌15分钟,将温度升至125℃并减压至-0.094MPa真空脱水2小时后去除真空,然后降温至60℃并保持温度为60℃,加入1,1,1-三羟甲基丙烷以转速为400转/分搅拌30分钟,最后加入辛酸亚锡以转速为400转/分搅拌60分钟,降温至30℃出料,得到B份;
(3)将A组分与B组分搅拌混合均匀。得到实施例1的高铁用阻燃抗菌聚氨酯防水涂料。
实施例2
与实施例1基本相同,区别仅在于:所述的无机抗菌剂由钨酸银、碳酸锌按质量比为1:1搅拌混合均匀得到。得到实施例2的高铁用阻燃抗菌聚氨酯防水涂料。
实施例3
与实施例1基本相同,区别仅在于:所述的无机抗菌剂由氯化银、碳酸锌按质量比为1:1搅拌混合均匀得到。得到实施例3的高铁用阻燃抗菌聚氨酯防水涂料。
实施例4
与实施例1基本相同,区别仅在于:所述的无机抗菌剂由氯化银、钨酸银按质量比为1:1搅拌混合均匀得到。得到实施例4的高铁用阻燃抗菌聚氨酯防水涂料。
实施例5
与实施例1基本相同,区别仅在于:所述的阻燃剂由六溴环十二烷、甲基磷酸二甲酯按质量比为1:1搅拌混合均匀得到。得到实施例5的高铁用阻燃抗菌聚氨酯防水涂料。
实施例6
与实施例1基本相同,区别仅在于:所述的阻燃剂由磷酸三苯酯、甲基磷酸二甲酯按质量比为1:1搅拌混合均匀得到。得到实施例6的高铁用阻燃抗菌聚氨酯防水涂料。
实施例7
与实施例1基本相同,区别仅在于:所述的阻燃剂由磷酸三苯酯、六溴环十二烷按质量比为1:1搅拌混合均匀得到。得到实施例7的高铁用阻燃抗菌聚氨酯防水涂料。
测试例1
对实施例1-7制备得到的高铁用阻燃抗菌聚氨酯防水涂料的阻燃性能进行测试。具体测试结果见表1。
表1:阻燃性能测试表
氧指数LOI值,%
实施例1 44.5
实施例2 42.0
实施例3 41.8
实施例4 42.3
实施例5 40.1
实施例6 40.6
实施例7 39.9
比较实施例1与实施例2-4,实施例1(氯化银、钨酸银、碳酸锌复配)阻燃性能明显优于实施例2-4(氯化银、钨酸银、碳酸锌中任意二者复配)。
比较实施例1与实施例5-7,实施例1(磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯复配)阻燃性能明显优于实施例5-7(磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯中任意二者复配)。
测试例2
对实施例1-7制备得到的高铁用阻燃抗菌聚氨酯防水涂料的抗菌性能进行测试,抗菌性能按GB/T21866-2008抗菌涂料抗菌性能测定方法和抗菌效果、HG/T 3980-2007抗菌涂料测定,大肠杆菌ATYCC 25922、金黄色葡萄球菌ATCC 6538。具体测试结果见表2。
表2:高铁用阻燃抗菌聚氨酯防水涂料抗菌性能测试数据表
比较实施例1与实施例2-4,实施例1(氯化银、钨酸银、碳酸锌复配)抗菌性能明显优于实施例2-4(氯化银、钨酸银、碳酸锌中任意二者复配)。
比较实施例1与实施例5-7,实施例1(磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯复配)抗菌性能明显优于实施例5-7(磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯中任意二者复配)。

Claims (2)

1.一种高铁用阻燃抗菌聚氨酯防水涂料,其特征在于,由下述重量份的原料制备而成:聚醚多元醇48-52份、1,6-己二异氰酸酯12-18份、己二酸二辛脂0.4-0.8份、二甲苯12-18份、氯化聚乙烯12-18份、硅粉1-10份、滑石粉5-15份、1,1,1-三羟甲基丙烷4-9份、辛酸亚锡0.3-0.6份、无机抗菌剂2-8份、阻燃剂1-5份;
所述的无机抗菌剂由氯化银、钨酸银、碳酸锌混合而成,所述氯化银、钨酸银、碳酸锌的质量比为(1-3):(1-3):(1-3);
所述的阻燃剂由磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯混合而成,所述磷酸三苯酯、六溴环十二烷、甲基磷酸二甲酯的质量比为(1-3):(1-3):(1-3)。
2.如权利要求1所述的高铁用阻燃抗菌聚氨酯防水涂料,其特征在于:所述的聚醚多元醇的羟值为18-38mgKOH/g,为聚醚HPOP40、聚醚EP-330N(G)中一种或多种组成。
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