CN111040652A - 高分子预铺防水卷材 - Google Patents

高分子预铺防水卷材 Download PDF

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Publication number
CN111040652A
CN111040652A CN201911217987.1A CN201911217987A CN111040652A CN 111040652 A CN111040652 A CN 111040652A CN 201911217987 A CN201911217987 A CN 201911217987A CN 111040652 A CN111040652 A CN 111040652A
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Prior art keywords
layer
parts
sensitive adhesive
mass
pressure
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Granted
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CN201911217987.1A
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CN111040652B (zh
Inventor
蔡健
杨力
谢雪峰
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Jiangsu Calon Building Materials Co ltd
Jiangsu Canlon Building Materials Co Ltd
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Jiangsu Calon Building Materials Co ltd
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Priority to CN201911217987.1A priority Critical patent/CN111040652B/zh
Priority to PCT/CN2019/125235 priority patent/WO2021109214A1/zh
Priority to US16/827,683 priority patent/US11401710B2/en
Priority to EP20165032.2A priority patent/EP3832046A1/en
Publication of CN111040652A publication Critical patent/CN111040652A/zh
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Publication of CN111040652B publication Critical patent/CN111040652B/zh
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    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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    • E04B1/665—Sheets or foils impervious to water and water vapor
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    • C—CHEMISTRY; METALLURGY
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C—CHEMISTRY; METALLURGY
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    • C—CHEMISTRY; METALLURGY
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    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
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    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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  • Engineering & Computer Science (AREA)
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  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)
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Abstract

本发明涉及一种高分子预铺防水卷材，包括高分子基材层、在该高分子基材层上的压敏粘合剂层和在该压敏粘合剂层上的砂粒防粘层；压敏粘合剂层包括：苯乙烯‑异戊二烯‑苯乙烯嵌段共聚物25‑35质量份；碳五石油树脂32‑38质量份；145季戊四醇改性松香树脂5‑12质量份；环烷油25‑32质量份；抗氧剂0.3质量份；紫外光稳定剂0.5质量份；碳五石油树脂软化点为95‑105℃，颜色小于4号色，环烷油在100℃下运动粘度9‑11mm2，在20℃下密度为0.8950‑0.9100g/cm3。使用该组分的压敏粘合剂层与烧结砂的粘合效果更强，且进一步提高了与混凝土的结合效果。

Description

高分子预铺防水卷材
技术领域
本发明涉及防水领域，尤其是涉及一种高分子预铺防水卷材。
背景技术
防水卷材主要是用于建筑墙体、屋面、以及隧道、公路、垃圾填埋场等处，起到抵御外界雨水、地下水渗漏的一种可卷曲成卷状的柔性建材产品，作为工程基础在建筑物之间实现无渗水连接，是整个工程防水的第一道屏障，对整个工程起着至关重要的作用。
现有的预铺防水卷材，通常包括基材层、在基材层上的粘合剂层和在粘合剂层上的砂粒防粘层，但是存在粘合剂层和砂粒防粘层结合不够牢固的问题，一方面由于砂粒的粘接性能较差，另一方面粘合剂层的粘性也不能满足要求，这将导致在施工时，卷材和混凝土粘结效果不理想，卷起的过程中也容易造成防粘颗粒脱落，影响施工进度。
发明内容
本发明的目的在于提供一种高分子预铺防水卷材，以解决现有技术存在的上述问题。
为了实现本发明的上述目的，采用以下技术方案：
一种高分子预铺防水卷材,包括高分子基材层、在该高分子基材层上的压敏粘合剂层和在该压敏粘合剂层上的砂粒防粘层；
所述压敏粘合剂层包括如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物25-35质量份；
碳五石油树脂32-38质量份；
145季戊四醇改性松香树脂5-12质量份；
环烷油25-32质量份；
抗氧剂0.3质量份；
紫外光稳定剂0.5质量份；
所述碳五石油树脂软化点为95-105℃，颜色小于4号色，所述环烷油在100℃下运动粘度9-11mm2，在20℃下密度为0.8950-0.9100g/cm3。
进一步地，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物在200℃下熔融指数为10-15g/10min，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物包含苯乙烯15-16质量份，二嵌段含量为50-60质量份。
进一步地，所述压敏粘合剂层生产过程包括：
步骤一，加入环烷油，将加热设备的导热油设定为180℃，料温设定为180℃，搅拌频率10Hz；
步骤二，当料温升至120℃时，加入碳五石油树脂和145季戊四醇改性松香树脂，搅拌频率为25Hz；
步骤三，当料温升至145-150℃时，加入橡胶，搅拌频率为40Hz；
步骤四，当料温升至160℃时，开始抽真空，当料温升至180±5℃，出料。
进一步地，所述压敏粘合剂层厚度为0.25mm-0.6mm，更优选的厚度为0.3-0.4mm，最优选的厚度为0.35mm。
进一步地，所述砂粒防粘层选用改性莫来砂。
进一步地，所述改性莫来砂经过表面处理，颗粒直径为0.3-0.5mm，砂粒颜色为淡黄色。
进一步地，所述砂粒防粘层与所述压敏粘合剂层覆合时，所述压敏粘合剂层表面温度为70℃，压辊压力≥0.3MPa。
进一步地，还包括搭接层、在搭接层上的离型膜层，所述搭接层和离型膜层有两对，分别位于所述高分子基材层的两端，且分别在上下两面。
进一步地，所述搭接层包含如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物32-38质量份；
氢化碳五树脂38-47质量份；
萜烯酚树脂1-8质量份；
聚异丁烯15-20质量份；
抗氧化剂0.3质量份；
紫外光稳定剂0.5质量份；
所述氢化碳五树脂软化点为95-105℃，颜色为0号色，所述萜烯酚树脂软化点为115℃，所述聚异丁烯的平均分子量为1000。。
进一步地，所述搭接层包含组分和所述压敏粘合剂层相同。
采用上述技术方案，本发明具有如下有益效果：
本申请通过对比实验筛选适合的压敏粘合剂组分比例，以提高与改性莫来砂的粘合强度，避免在运输或施工过程中砂粒脱落，使压敏粘合剂层暴露在外，这种暴露一方面导致工作人员在卷材上走动时粘住鞋底，影响施工时的灵活性，另一方面加剧卷起时正反面的粘结，影响铺设时展开的难度，卷材与混凝土的剥离强度也会随着压敏粘合剂层粘性的提高而提高。
本申请卷材的搭接边，可选用与压敏粘合剂层不同的组分，以提高卷材施工时互相的连接强度，在卷材生产过程中将搭接边层及其起保护作用的离型膜层做成卷材的组成部分，省去施工时需要铲去砂粒层，另外粘贴搭接胶带的步骤，直接撕掉离型膜即可进行搭接操作，搭接边和卷材做成一体结构同时也隔离了搭接前的粉尘污染，从而保证了搭接层的纯度，也就进一步提高了搭接时的稳定性，该搭接边层可以保证在夏天50℃以下仍然具有较高的搭接强度，在冬天施工省去加热步骤，在零下10℃同样具有较高的搭接强度。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的防水卷的结构示意图。
附图标记：1-高分子基材层；2-压敏粘合剂层；3-砂粒防粘层；4-搭接层；5-离型膜层。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例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。
如图1所示，本申请的高分子预铺防水卷材，包括高分子基材层1、在该高分子基材层1上的压敏粘合剂层2和在该压敏粘合剂层上的砂粒防粘层3；
所述压敏粘合剂层2包括如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物25-35质量份；
碳五石油树脂32-38质量份；
145季戊四醇改性松香树脂5-12质量份；
环烷油25-32质量份；
抗氧剂0.3质量份；
紫外光稳定剂0.5质量份；
所述碳五石油树脂软化点为95-105℃，颜色小于4号色，所述环烷油在100℃下运动粘度9-11mm2，在20℃下密度为0.8950-0.9100g/cm3。
具体地，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物在200℃下熔融指数为10-15g/10min，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物包含苯乙烯15-16质量份，二嵌段含量为50-60质量份。
具体地，所述压敏粘合剂层2生产过程包括：
步骤一，加入环烷油，将加热设备的导热油设定为180℃，料温设定为180℃，搅拌频率10Hz；
步骤二，当料温升至120℃时，加入碳五石油树脂和145季戊四醇改性松香树脂，搅拌频率为25Hz；
步骤三，当料温升至145-150℃时，加入橡胶，搅拌频率为40Hz；
步骤四，当料温升至160℃时，开始抽真空，当料温升至180±5℃，出料。
具体地，所述压敏粘合剂层2厚度为0.25mm-0.6mm，更优选的厚度为0.3-0.4mm，最优选的厚度为0.35mm。
具体地，所述砂粒防粘层3选用改性莫来砂。
具体地，所述改性莫来砂经过表面处理，颗粒直径为0.3-0.5mm，砂粒颜色为淡黄色，色度略大，可以减少反射率，防止大面积施工时对人眼造成伤害。
具体地，所述砂粒防粘层3与所述压敏粘合剂层2覆合时，所述压敏粘合剂层2表面温度为70℃，压辊压力≥0.3MPa。
具体地，还包括搭接层4、在搭接层上的离型膜层5，所述搭接层4和离型膜层5有两对，分别位于所述高分子基材层1的两端，且分别在上下两面，离型膜层5采用聚乙烯离型膜、聚对苯二甲酸乙二醇酯材料，所述搭接层4厚度为0.3-0.5mm。
具体地，所述搭接层4包含如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物32-38质量份；
氢化碳五树脂38-47质量份；
萜烯酚树脂1-8质量份；
聚异丁烯15-20质量份；
抗氧化剂0.3质量份；
紫外光稳定剂0.5质量份；
所述氢化碳五树脂软化点为95-105℃，颜色为0号色，所述萜烯酚树脂软化点为115℃，所述聚异丁烯的平均分子量为1000。
具体地，所述搭接层4包含组分和所述压敏粘合剂层2相同。
本申请的一种高分子预铺防水卷材，其中高分子基材层1主要起防水作用，可以选用聚乙烯、聚丙烯、乙烯-烯烃共聚物、乙烯-乙酸乙烯酯共聚物、聚乙酸乙烯酯、聚丙烯酸乙酯、聚四氟乙烯、聚偏二氟乙烯、聚对苯二甲酸乙二醇酯、聚氯乙烯、聚酰胺这些材料中的一种或更多种的组合，优选聚乙烯、聚丙烯、乙烯-烯烃共聚物，聚对苯二甲酸乙二醇酯，更优选的高分子基材为聚乙烯，乙烯-烯烃共聚物，聚对苯二甲酸乙二醇酯，最优选的高分子基材为聚乙烯；其中压敏粘合剂层2起到连接基材层和砂粒层，并且在施工时候粘接混凝土的作用，可以选用丁基橡胶基粘合剂，聚异丁烯基粘合剂，丁基系粘合剂，丙烯酸基粘合剂，苯乙烯嵌段共聚物类粘合剂中的一种或几种。
搭接层4含有的苯乙烯-异戊二烯-苯乙烯嵌段共聚物在200℃下熔融指数为25-30g/10min，具体组成为苯乙烯含量为14-15质量份；二嵌段含量为40-60质量份。
搭接层4的生产方式为：步骤一：加入聚异丁烯PIB，将导热油温度设定为180℃，料温设定为180℃，搅拌速度10Hz；步骤二：当料温升至120℃后，加入氢化碳五树脂以及萜烯酚树脂，搅拌速度25Hz；步骤三：当料温升至145-150℃后，加入苯乙烯-异戊二烯-苯乙烯嵌段共聚物，搅拌速度40Hz，料温升至160℃开始抽真空处理，当料温达到180±5℃时，出料。
针对压敏粘合剂层2组分的不同比例选取五组实验进行对比，以证明本申请所要保护的技术方案具有更好的技术效果：
实验1
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：碳五石油树脂：145季戊四醇改性松香树脂：环烷油：抗氧剂：紫外光稳定剂＝26：34：10：30：0.3:0.5的质量比；
实验2
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：碳五石油树脂：145季戊四醇改性松香树脂：环烷油：抗氧剂：紫外光稳定剂＝37：33：5：25：0.3:0.5的质量比；
实验3
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：碳五石油树脂：145季戊四醇改性松香树脂：环烷油：抗氧剂：紫外光稳定剂＝25：42：8：25：0.3:0.5的质量比；
实验4
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：碳五石油树脂：145季戊四醇改性松香树脂：环烷油：抗氧剂：紫外光稳定剂＝30：38：3：29：0.3:0.5的质量比；
实验5
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：碳五石油树脂：145季戊四醇改性松香树脂：环烷油：抗氧剂：紫外光稳定剂＝25：32：8：35：0.3:0.5的质量比。
实验结果如表1所示：
表1压敏粘合剂组分不同比例实验结果表
Figure BDA0002300022380000081
通过表1可以得出：
实验1选用本申请所要保护的比例，各项性能均满足要求；
实验2中SIS橡胶量增加虽然可以使压敏粘合剂强度变大，但是却导致砂粒嵌入度变差，导致剥离力变差；
实验3中增加石油树脂的量，导致压敏粘合剂变硬，进而导致热老化后低温性能不合格；
实验4中减少松香树脂的量，导致压敏粘合剂初粘变差，进而砂粒和胶层粘附性变差，剥离力下降；
实验5中增塑剂环烷油的量变大，压敏粘合剂内聚力下降，导致压敏粘合剂不能满足高温要求。
针对搭接层4组分的不同比例选取五组实验进行对比，以证明本申请所要保护的技术方案具有更好的技术效果：
实验6
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：氢化碳五树脂：萜烯酚树脂：聚异丁烯PIB：抗氧剂：紫外光稳定剂＝37：42：3：18：0.3:0.5的质量比；
实验7
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：氢化碳五树脂：萜烯酚树脂：聚异丁烯PIB：抗氧剂：紫外光稳定剂＝30：45：7：18：0.3:0.5的质量比；
实验8
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：氢化碳五树脂：萜烯酚树脂：聚异丁烯PIB：抗氧剂：紫外光稳定剂＝32：49：6：15：0.3:0.5的质量比；
实验9
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：氢化碳五树脂：萜烯酚树脂：聚异丁烯PIB：抗氧剂：紫外光稳定剂＝37：38：10：15：0.3:0.5的质量比；
实验10
具体配方比例为：苯乙烯-异戊二烯-苯乙烯嵌段共聚物：氢化碳五树脂：萜烯酚树脂：聚异丁烯PIB：抗氧剂：紫外光稳定剂＝32：42：4：22：0.3:0.5的质量比。
在50℃的烘箱内进行对搭接层4以上不同组分的高温持粘实验，裁取5cm宽度搭接层4，搭接长度7.5cm，搭接完在试样底部配重为1kg，测试高温持粘性实验结果如表2所示：
表2搭接层组分不同比例实验结果表
项目 实验6 实验7 实验8 实验9 实验10
50℃高温持粘性 20天 3天 5天 10天 2天
现象 粘接良好 搭接开口 搭接崩开 搭接开口 搭接滑移
通过表2可以得出：
实验6，实验6搭接性能表现最优；
实验7，苯乙烯-异戊二烯-苯乙烯嵌段共聚物量减少，搭接层4粘合剂强度变小，一段时间后出现搭接开口的情况；
实验8，氢化碳五树脂的量增加，搭接层4变硬，在高温条件下，粘搭接处出现开口然后缓慢崩开；
实验9，萜烯酚树脂的量增加，长时间后，搭接层4出现老化情况，搭接边出现裂口掉落；
实验10，聚异丁烯PIB的量变大，搭接层4内聚力下降，高温持粘出现胶层滑移脱开现象。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

1.一种高分子预铺防水卷材,其特征在于，包括高分子基材层、在该高分子基材层上的压敏粘合剂层和在该压敏粘合剂层上的砂粒防粘层；
所述压敏粘合剂层包括如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物25-35质量份；
碳五石油树脂32-38质量份；
145季戊四醇改性松香树脂5-12质量份；
环烷油25-32质量份；
抗氧剂0.3质量份；
紫外光稳定剂0.5质量份；
所述碳五石油树脂软化点为95-105℃，颜色小于4号色，所述环烷油在100℃下运动粘度9-11mm2，在20℃下密度为0.8950-0.9100g/cm3。
2.根据权利要求1所述的高分子预铺防水卷材，其特征在于，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物在200℃下熔融指数为10-15g/10min，所述苯乙烯-异戊二烯-苯乙烯嵌段共聚物包含苯乙烯15-16质量份，二嵌段含量为50-60质量份。
3.根据权利要求1所述的高分子预铺防水卷材，其特征在于，所述压敏粘合剂层生产过程包括：
步骤一，加入环烷油，将加热设备的导热油设定为180℃，料温设定为180℃，搅拌频率10Hz；
步骤二，当料温升至120℃时，加入碳五石油树脂和145季戊四醇改性松香树脂，搅拌频率为25Hz；
步骤三，当料温升至145-150℃时，加入橡胶，搅拌频率为40Hz；
步骤四，当料温升至160℃时，开始抽真空，当料温升至180±5℃，出料。
4.根据权利要求1所述的高分子预铺防水卷材，其特征在于，所述压敏粘合剂层厚度为0.25mm-0.6mm。
5.根据权利要求1所述的高分子预铺防水卷材，其特征在于，所述砂粒防粘层选用改性莫来砂。
6.根据权利要求5所述的高分子预铺防水卷材，其特征在于，所述改性莫来砂经过表面处理，颗粒直径为0.3-0.5mm，砂粒颜色为淡黄色。
7.根据权利要求1所述的高分子预铺防水卷材，其特征在于，所述砂粒防粘层与所述压敏粘合剂层覆合时，所述压敏粘合剂层表面温度为70℃，压辊压力≥0.3MPa。
8.根据权利要求1所述的高分子预铺防水卷材，其特征在于，还包括搭接层、在搭接层上的离型膜层，所述搭接层和离型膜层有两对，分别位于所述高分子基材层的两端，且分别在上下两面。
9.根据权利要求8所述的高分子预铺防水卷材，其特征在于，所述搭接层包含如下组分：
苯乙烯-异戊二烯-苯乙烯嵌段共聚物32-38质量份；
氢化碳五树脂38-47质量份；
萜烯酚树脂1-8质量份；
聚异丁烯15-20质量份；
抗氧化剂0.3质量份；
紫外光稳定剂0.5质量份；
所述氢化碳五树脂软化点为95-105℃，颜色为0号色，所述萜烯酚树脂软化点为115℃，所述聚异丁烯的平均分子量为1000。
10.根据权利要求8所述的高分子预铺防水卷材，其特征在于，所述搭接层包含组分和所述压敏粘合剂层相同。
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