CN110922908A - 预铺高分子防水卷材 - Google Patents

预铺高分子防水卷材 Download PDF

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Publication number
CN110922908A
CN110922908A CN201911138945.9A CN201911138945A CN110922908A CN 110922908 A CN110922908 A CN 110922908A CN 201911138945 A CN201911138945 A CN 201911138945A CN 110922908 A CN110922908 A CN 110922908A
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China
Prior art keywords
adhesive layer
melt pressure
sensitive adhesive
hot
agent
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CN201911138945.9A
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Inventor
杨力
蔡健
李忠人
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Jiangsu Canlon Building Materials Co Ltd
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Jiangsu Canlon Building Materials Co Ltd
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Application filed by Jiangsu Canlon Building Materials Co Ltd filed Critical Jiangsu Canlon Building Materials Co Ltd
Priority to CN201911138945.9A priority Critical patent/CN110922908A/zh
Priority to PCT/CN2019/123487 priority patent/WO2021097943A1/zh
Priority to US16/827,656 priority patent/US20210147730A1/en
Priority to EP20165031.4A priority patent/EP3825374A1/en
Publication of CN110922908A publication Critical patent/CN110922908A/zh
Pending legal-status Critical Current

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    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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Abstract

本发明涉及一种预铺高分子防水卷材,包括片状高分子载体、在该片状高分子载体上的热熔压敏胶层和在该热熔压敏胶层上的防粘涂层;防粘涂层包括如下组分:水100‑160重量份;聚氨酯树脂50‑80重量份;颜料15‑20重量份;填料10‑12重量份;交联剂0.3‑1重量份;抗氧剂0.5‑1重量份;抗紫外光剂1‑2.5重量份;增稠剂0.03‑0.2重量份。本申请中的防粘涂层采用水作为溶剂,水无毒无腐蚀,在生产过程中不存在环境污染问题。

Description

预铺高分子防水卷材
技术领域
本发明涉及防水领域,尤其是涉及一种预铺高分子防水卷材。
背景技术
目前已知的高分子片材作为载体,热熔压敏胶作为胶层,表面再覆上一层白水泥砂子作为防粘层。
这类产品主要是通过搭接边的相互搭接而连接成一个整体起到防水的作用,该预铺高分子防水卷材相比较于沥青基预铺高分子防水卷材防水效果更佳。
但是该预铺高分子防水卷材防粘层使用的白水泥沙子,在生产中会产生粉尘,会污染环境。同时白水泥沙子碱性极强,具有很大的腐蚀性。
发明内容
本发明的目的在于提供一种预铺高分子防水卷材,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:
一种预铺高分子防水卷材,包括片状高分子载体、在该片状高分子载体上的热熔压敏胶层和在该热熔压敏胶层上的防粘涂层;
所述防粘涂层包括如下组分:
水100-160重量份;
聚氨酯树脂50-80重量份;
颜料15-20重量份;
填料10-12重量份;
交联剂0.3-1重量份;
抗氧剂0.5-1重量份;
抗紫外光剂1-2.5重量份;
增稠剂0.03-0.2重量份。
进一步地,所述片状高分子载体包含聚乙烯、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、聚酰胺或这些材料中的二种或更多种的组合。
进一步地,所述热熔压敏胶层包含丁基橡胶基粘合剂、聚异丁烯基粘合剂、丁基系粘合剂、丙烯酸基粘合剂、苯乙烯-异戊二烯-苯乙烯基粘合剂、苯乙烯-乙烯-丁烯-苯乙烯基粘合剂、苯乙烯-丁二烯- 苯乙烯基粘合剂、苯乙烯-丁二烯基粘合剂或这些材料中的二种或更多种的组合。
进一步地,所述填料为碳酸钙、二氧化硅、硅酸镁、氢氧化铝或氧化铝;所述颜料为二氧化钛或氧化锌;所述抗紫外光剂为复合类抗紫外光剂;所述交联剂为异氰酸酯;所述增稠剂为膨润土;所述抗氧剂为酚类抗氧剂。
进一步地,所述片状高分子载体的厚度为0.3-2mm,所述热熔压敏胶层的厚度为0.1-0.5mm,所述防粘涂层的厚度为5-50um。
进一步地,所述二氧化钛为金红石型的纳米二氧化钛。
进一步地,所述热熔压敏胶层的表面的一侧为裸露设置,裸露设置的所述热熔压敏胶层上粘接有可剥离的隔离膜,所述片状高分子载体的底部的另一侧设有粘胶层,所述粘胶层上粘接有可剥离的隔离膜,所述粘胶层为热熔压敏胶层。
采用上述技术方案,本发明具有如下有益效果:
本申请中的防粘涂层采用水作为溶剂,水无毒无腐蚀,在生产过程中不存在环境污染问题。
本申请的防粘涂层中,聚氨酯树脂可以和混凝土起化学反应达到更好粘接的作用,填料和颜料作为无机分子起到防粘作用,同时,颜料通过反射紫外线机理防紫外线,抗紫外光剂是抗紫外作用,抗氧剂起抗老化作用,增稠剂起到增稠防止乳液中颜料和填料下沉,交联剂使聚氨酯树脂分子交联在一起,防止防粘涂层高温时粘接到片状高分子载体背面。
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。
图2为本发明实施例提供的预铺高分子防水卷材与粘胶带的连接关系示意图。
附图标记:1-片状高分子载体;2-热熔压敏胶层;3-防粘涂层; 4-隔离膜;5-粘胶层。
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-图2所示,本申请的预铺高分子防水卷材,包括片状高分子载体1、在该片状高分子载体1上的热熔压敏胶层2和在该热熔压敏胶层2上的防粘涂层3;
防粘涂层3包括如下组分:
水100-160重量份;
聚氨酯树脂50-80重量份;
颜料15-20重量份;
填料10-12重量份;
交联剂0.3-1重量份;
抗氧剂0.5-1重量份;
抗紫外光剂1-2.5重量份;
增稠剂0.03-0.2重量份。
具体地,片状高分子载体1包含聚乙烯、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、聚酰胺或这些材料中的二种或更多种的组合。
具体地,热熔压敏胶层2包含丁基橡胶基粘合剂、聚异丁烯基粘合剂、丁基系粘合剂、丙烯酸基粘合剂、苯乙烯-异戊二烯-苯乙烯基粘合剂、苯乙烯-乙烯-丁烯-苯乙烯基粘合剂、苯乙烯-丁二烯-苯乙烯基粘合剂、苯乙烯-丁二烯基粘合剂或这些材料中的二种或更多种的组合。
具体地,填料为碳酸钙、二氧化硅、硅酸镁、氢氧化铝或氧化铝;所述颜料为二氧化钛或氧化锌;抗紫外光剂为复合类抗紫外光剂;所述交联剂为异氰酸酯;所述增稠剂为膨润土;所述抗氧剂为酚类抗氧剂。
具体地,片状高分子载体的厚度为0.3-2mm,优选0.6-1.5mm, 更优选0.7-1.2mm,最优选0.9mm。
热熔压敏胶层的厚度为0.1-0.5mm,优选0.2-0.45mm,更优选 0.25-0.40mm。
防粘涂层3的厚度为5-50um,优选10-40um,更优选20-30um。
具体地,二氧化钛为金红石型的纳米二氧化钛。
具体地,熔压敏胶层2的表面的一侧为裸露设置,裸露设置的热熔压敏胶层2上粘接有可剥离的隔离膜4,片状高分子载体1的底部的另一侧设有粘胶层5,粘胶层5上粘接有可剥离的隔离膜4,粘胶层5为热熔压敏胶层。
裸露设置的热熔压敏胶层2和粘胶层5在多个预铺高分子防水卷材短边搭接时,可以直接撕下隔离膜4用裸露设置的热熔压敏胶层2和粘胶层5进行粘接。隔离膜4在预铺高分子防水卷材运输的时候,起到隔离裸露设置的热熔压敏胶层2和粘胶层5的黏性的作用。
裸露设置的热熔压敏胶层2的宽度为8-10cm,厚度为0.3-0.5mm,粘胶层5的宽度为8-10cm,厚度为0.1-0.2mm。
本发明的预铺高分子防水卷材包括如下两种加工方法:
本发明的预铺高分子防水卷材的一种加工方法包括如下步骤:
将热熔压敏胶涂布在片状高分子载体1上,形成热熔压敏胶层2。
热熔压敏胶的涂布温度为150-180℃,热熔压敏胶的涂布方式可以是模槽挤出、刮刀刮涂或压辊滚涂三种。
将防粘涂层3按照上述比例制成乳液,待热熔压敏胶层2冷却到 60-70℃,将制成的乳液涂布在热熔压敏胶层2上,乳液的涂布方式可以是喷枪喷涂或压辊滚涂两种。
再经50-60℃烘箱干燥,将乳液中的水蒸发,形成防粘涂层3。
本发明的预铺高分子防水卷材的另一种加工方法包括如下步骤:
将热熔压敏胶涂布在片状高分子载体1上,形成热熔压敏胶层2。
热熔压敏胶的涂布温度150-180℃,热熔压敏胶的涂布方式可以是模槽挤出、刮刀刮涂或压辊滚涂三种。
将防粘涂层3按照上述比例制成乳液,将制成的乳液涂布在隔离层上,该隔离层可以是PE或PET,然后再转移到温度为60-70℃的热熔压敏胶层2上,然后撕掉隔离层,乳液的涂布方式可以喷枪喷涂或压辊滚涂两种。
再经50-60℃烘箱干燥除水,将乳液中的水蒸发,形成防粘涂层 3。
本申请中的热熔压敏胶层2的配方,如表1所示:
表1热熔压敏胶层的配方表
原料 比例/%
环烷油4010 20
中科信源PZX-H1100树脂 47
科腾橡胶1163 32
抗氧剂1010 0.5
抗紫外光剂770 0.5
本申请的热熔压敏胶层2的制备方法是:
将环烷油加热到140℃,加入中科信源PZX-H1100树脂,开始搅拌抽真空,搅拌速度200rpm,待树脂融化后,加入橡胶和助剂,保持搅拌和抽真空,于180度搅拌3h,开始涂布。其中中科信源PZX-H1100 树脂和科腾橡胶1163属于苯乙烯-丁二烯-苯乙烯基粘合剂中的苯乙烯-丁二烯-苯乙烯体系,其他属于该粘合剂中的固定组分。
本申请中的防粘涂层3,将水烘干后的各组分的优选比例,结果如表2所示:
表2防粘涂层中将水烘干后的各组分的优选比例表
原料 比例/%
聚氨酯树脂 69
钛白粉R-930 16
碳酸钙cc60 12
抗氧剂1010 0.5
抗紫外光剂770 1.9
交联剂X-404 0.5
膨润土 0.1
本申请中的防粘涂层3的制备方法是:将水和聚氨酯树脂组成的溶液在2000rpm搅拌下,加入钛白粉R-930和碳酸钙CC60,30min 后加入抗氧剂1010和抗紫外光剂770,15min后加入交联剂X-404 和膨润土,继续搅拌30min出料。其中,钛白粉R-930是颜料,碳酸钙CC60是填料,膨润土是增稠剂。
该产品耐候性能好,实际外露测试发现,该产品放置在外面测试数据,结果如表3所示:
表3外露测试数据
外露时间 混凝土剥离强度/MPa
1 3月1日-3月31日 2.8
2 3月1日-4月30日 2.4
3 3月1日-5月30日 1.7
4 3月1日-6月30日 1.4
由于施工周期通常是两个月,施工完毕后,预铺高分子防水卷材会被水泥盖住,因此,只要保证两个月的施工周期内,混凝土剥离强度达到行业标准的1.5MPa即可,通过表3可以得出,本申请的外露测试数据表明,在两个月的外露时间内,本申请的混凝土剥离强度均超过行业标准的1.5MPa。
抗紫外光剂的用量对防水卷材抗紫外性能的影响,其他配比按表 2,在50W的氙灯照射3天后的混凝土剥离强度,结果如表4所示:
表4抗紫外光剂用量对防水卷材紫外性能的影响
Figure BDA0002280357210000081
通过表4可以得出,抗紫外光剂添加量在1.5%-2.5%范围内,紫外处理后混凝土剥离强度均超过行业标准的1.5MPa,并且通过抗紫外光剂用量的关系,可以得出,抗紫外光剂的用量与混凝土剥离强度成正比,即,抗紫外光剂的用量越高,混凝土剥离强度越高,因此,抗紫外性能越好。
颜料和填料的不同比例对混凝土粘接性能的影响,其他配比按表 2,结果如表5所示:
表5颜料和填料的不同比例对混凝土粘接性能的影响
颜料和填料比例/% 混凝土剥离强度/MPa
20 3.2
25 3.0
30 2.8
35 2.6
通过表5可以得出,颜料和填料比例在上述范围内,本申请的紫外处理后混凝土剥离强度均超过行业标准的1.5MPa,并且通过颜料和填料比例的关系,可以得出,颜料和填料的比例与混凝土剥离强度成反比,即,颜料和填料的比例越高,混凝土剥离强度越低,因此,混凝土粘接性能越差。
颜料用量对防水卷材紫外性能的影响,颜料为钛白粉,其他配比按表2,在50W的氙灯照射3天后的混凝土剥离强度,结果如表6所示:
表6颜料用量对防水卷材紫外性能的影响
钛白粉用量/% 紫外处理后混凝土剥离强度/MPa
5 0.7
10 1.5
15 2.3
20 2.8
25 3.0
30 2.7
通过表6可以得出,钛白粉用量在10%-30%的范围内,本申请的紫外处理后混凝土剥离强度均超过行业标准的1.5MPa,并且通过钛白粉用量的关系,可以得出,钛白粉在5-25%的用量下,紫外处理后混凝土剥离强度成递增趋势,即,钛白粉的用量越高紫外处理后混凝土剥离强度越高,当钛白粉在30%的用量下,紫外处理后混凝土剥离强度开始下降,因此,防水卷材的紫外性能变差。由此可知,钛白粉用量越多,成本越低,涂层的抗粘接性能越好,但是会影响乳液稳定性和增大喷涂的难度。
抗氧剂的用量对防水卷材耐老化性能影响,其他配比按表2,结果如表7所示:
表7抗氧剂的用量对防水卷材耐老化性能影响
Figure BDA0002280357210000101
通过表7可以得出,抗氧剂用量在0.1%-0.9%的范围内,本申请的热处理混凝土剥离强度均超过行业标准的1.5MPa,并且通过抗氧剂用量的关系,可以得出,抗氧剂用量与热处理后混凝土剥离强度成正比,即,抗氧剂用量越高,热处理后混凝土剥离强度越高,因此,防水卷材耐老化性能影响。
交联剂的用量对防水卷材耐老化性能影响,其他配比按表2,结果如表8所示:
表8交联剂的用量对防水卷材耐老化性能影响
Figure BDA0002280357210000102
通过表8可以得出,交联剂用量在0.1%-0.9%的范围内,本申请的热处理混凝土剥离强度均超过行业标准的1.5MPa,并且通过交联剂用量的关系,可以得出,交联剂用量与热处理后混凝土剥离强度成反比,即,交联剂用量越高,热处理后混凝土剥离强度越差,因此,防水卷材耐老化性能影响。
聚氨酯树脂用量对混凝土粘接性能的影响,其他配比按表2,结果如表9所示:
表9聚氨酯树脂用量对混凝土粘接性能的影响
聚氨酯树脂用量/% 混凝土剥离强度/MPa
40 2.1
50 2.4
60 2.8
70 2.9
80 3.0
通过表9可以得出,聚氨酯树脂用量在40%-80%的范围内,本申请的混凝土剥离强度均超过行业标准的1.5MPa,并且通过聚氨酯树脂用量的关系,可以得出,聚氨酯树脂用量与混凝土剥离强度成正比,即,聚氨酯树脂用量越高,混凝土剥离强度越高,因此,混凝土粘接性能越好。
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 (7)

1.一种预铺高分子防水卷材,其特征在于,包括片状高分子载体、在该片状高分子载体上的热熔压敏胶层和在该热熔压敏胶层上的防粘涂层;
所述防粘涂层包括如下组分:
水100-160重量份;
聚氨酯树脂50-80重量份;
颜料15-20重量份;
填料10-12重量份;
交联剂0.3-1重量份;
抗氧剂0.5-1重量份;
抗紫外光剂1-2.5重量份;
增稠剂0.03-0.2重量份。
2.根据权利要求1所述的预铺高分子防水卷材,其特征在于,所述片状高分子载体包含聚乙烯、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、聚酰胺或这些材料中的二种或更多种的组合。
3.根据权利要求1所述的预铺高分子防水卷材,其特征在于,所述热熔压敏胶层包含丁基橡胶基粘合剂、聚异丁烯基粘合剂、丁基系粘合剂、丙烯酸基粘合剂、苯乙烯-异戊二烯-苯乙烯基粘合剂、苯乙烯-乙烯-丁烯-苯乙烯基粘合剂、苯乙烯-丁二烯-苯乙烯基粘合剂、苯乙烯-丁二烯基粘合剂或这些材料中的二种或更多种的组合。
4.根据权利要求1所述的预铺高分子防水卷材,其特征在于,所述填料为碳酸钙、二氧化硅、硅酸镁、氢氧化铝或氧化铝;所述颜料为二氧化钛或氧化锌;所述抗紫外光剂为复合类抗紫外光剂;所述交联剂为异氰酸酯;所述增稠剂为膨润土;所述抗氧剂为酚类抗氧剂。
5.根据权利要求1所述的预铺高分子防水卷材,其特征在于,所述片状高分子载体的厚度为0.3-2mm,所述热熔压敏胶层的厚度为0.1-0.5mm,所述防粘涂层的厚度为5-50um。
6.根据权利要求4所述的预铺高分子防水卷材,其特征在于,所述二氧化钛为金红石型的纳米二氧化钛。
7.根据权利要求1所述的预铺高分子防水卷材,其特征在于,所述热熔压敏胶层的表面的一侧为裸露设置,裸露设置的所述热熔压敏胶层上粘接有可剥离的隔离膜,所述片状高分子载体的底部的另一侧设有粘胶层,所述粘胶层上粘接有可剥离的隔离膜,所述粘胶层为热熔压敏胶层。
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