CN115583085A - 一种新型环保耐候pvc防水卷材及其制备方法 - Google Patents
一种新型环保耐候pvc防水卷材及其制备方法 Download PDFInfo
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Abstract
本发明涉及一种建材领域(IPC分类号:E04D15/06),尤其涉及一种新型环保耐候PVC防水卷材及其制备方法。本发明的新型环保耐候PVC防水卷材,包括高耐候PVDF层、粘结层和软质PVC层。本发明制备的新型环保耐候PVC防水卷材通过采用高耐候PVDF层、粘结层和软质PVC复合的三层结构,避免了液体的渗入和防水边角的卷曲。本发明制备的粘结层将PVDF层和软质PVC层进行覆合,也避免了侧面渗水,整体提高了防水卷材的防水性能。同时制备的防水卷材也具有良好的耐低温性,耐高温和耐候性,与传统的防水卷材相比,具有高耐候、绿色环保、节能高效等优点,同时符合材料和工艺的环境友好型和资源节约型社会的标准要求。
Description
技术领域
本发明涉及一种建材领域(IPC分类号:E04D15/06),尤其涉及一种新型环保耐候PVC防水卷材及其制备方法。
背景技术
在建筑墙体、屋面、以及隧道、公路、垃圾填埋场等处,为起到抵御外界雨水、地下水的渗漏,往往使用防水卷材。防水卷材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,产品主要有沥青防水卷材和高分子防水卷材。
目前,国内的高耐候防水卷材主要包括以下几类,第一类是直接对原材料进行改性以提高防水卷材的耐候性;第二类是以遮蔽的方法提高防水卷材的耐候性,如覆膜防水卷材。
专利申请CN103088923B公开了一种改性防水卷材,其制备的改性复合防水卷材的力学性能强,耐候性好,防水防漏,但是在制备原料中的抗老化剂随着时间慢慢消耗,因此,此发明制备的防水卷材的使用寿命大大受到了限制。专利申请CN104553185A公开了一种改性氟碳膜丁基橡胶复合防水卷材及其制备方法,此发明制备的防水卷材,具有常常耐久性,但是此类氟膜遮蔽的防水卷材通常会使用到胶水及各类溶剂,如聚氨酯胶、醋酸乙酯、醋酸丁酯或环己酮等,在固化过程溶剂的挥发会对环境形成一定的破坏,并不环保,不符合国家倡导的绿色发展道路。
本发明的PVC防水卷材在生产及复合过程中无需使用任何胶水及溶剂,没有有害物质挥发,与传统的防水卷材相比,具有高耐候、绿色环保、节能高效等优点,同时符合材料和工艺的环境友好型和资源节约型社会的标准要求。
发明内容
为了解决上述问题,本发明的第一方面提供了本发明涉及一种建材领域(IPC分类号:E04D15/06),尤其涉及一种新型环保耐候PVC防水卷材及其制备方法。
作为一种优选的方案,所述高耐候PVDF层为5μm~50μm;
作为一种优选方案,所述高耐候PVDF层为20μm~35μm;
作为一种优选的方案,所述粘结层的厚度为10μm~80μm;
作为一种优选的方案,所述粘结层的厚度为40~50μm;
作为一种优选的方案,所述软质PVC层厚度为50μm~200μm;
作为一种优选的方案,所述软质PVC层厚度为100μm~150μm;
作为一种优选的方案,所述高耐候PVDF,按重量份计,原料至少包括:PVDF树脂50~70份,填料10~30份,ACR抗冲改性剂9~11份,相容剂3~10份,抗氧剂0.05~5份,苯并***系化合物0.05~5份。
作为一种优选的方案,所述高耐候PVDF,按重量份计,原料至少包括:PVDF树脂55~60份,填料15~20份,ACR抗冲改性剂9~11份,相容剂4~6份,抗氧剂0.5~3份,苯并***系化合物0.5~3份。
作为一种优选的方案,所述PVDF树脂的熔融指数为26.0~27.0g/10min,230℃,5.0kg。
作为一种优选的方案,所述填料为纳米碳酸钙,晶须增强剂,钛白粉中的一种或多种。
作为一种优选的方案,所述填料为钛白粉,购买自亨斯曼TR-28。
作为一种优选的方案,所述苯并***系化合物,购买自巴斯夫UV-P。
作为一种优选的方案,所述ACR抗冲改性剂为核壳结构的ACR(丙烯酸酯)类抗冲改性剂,购买自陶氏2311。
作为一种优选的方案,所述PVDF树脂,ACR抗冲改性剂的重量比为(5~7):1。
作为一种优选的方案,所述PVDF树脂,ACR抗冲改性剂的重量比为6:1。
作为一种优选的方案,所述相容剂为乙烯丙烯酸共聚物、乙烯丙烯酸甲酯共聚物、乙烯丙烯酸乙酯共聚物、乙烯醋酸乙烯共聚物中的一种或多种。
作为一种优选的方案,所述相容剂为乙烯丙烯酸甲酯共聚物。
作为一种优选的方案,所述乙烯丙烯酸甲酯共聚物的熔融指数为7.5~8.5g/10min,(190℃/2.16kg),可市售,例如美国陶氏AC1820。
作为一种优选的方案,所述粘结层为丙烯酸树脂和甲基丙烯酸树脂改性料。
作为一种优选的方案,所述丙烯酸树脂和甲基丙烯酸树脂改性料,按重量份计,原料至少包括:聚甲基丙烯酸树脂20~50份、丙烯酸树脂50~80份、抗氧剂0.1~2份、耐水解剂0.1~2份、紫外吸收剂0.1~2份。
作为一种优选的方案,所述丙烯酸树脂和甲基丙烯酸树脂改性料,按重量份计,原料至少包括:聚甲基丙烯酸树脂30~40份、丙烯酸树脂60~70份、抗氧剂0.1~2份、耐水解剂0.1~2份、紫外吸收剂0.1~2份。
作为一种优选的方案,所述聚甲基丙烯酸树脂的重均分子量为100000~110000;所述聚甲基丙烯酸树脂的粘度为260Cp,23℃,可市售,例如韩国LGIF850B。
作为一种优选的方案,所述丙烯酸树脂为WSD-1722,购买自常州威斯敦粘合材料责任有限公司。
作为一种优选的方案,所述聚甲基丙烯酸树脂,丙烯酸树脂的重量比为1:(1.5~2)。
作为一种优选的方案,所述耐水解剂为聚碳化而亚胺UN-03。
作为一种优选的方案,所述紫外吸收剂为苯酮系化合物,购买自巴斯夫UV-531。
本发明中的所述抗氧剂均为同一种物质。
作为一种优选的方案,所述抗氧剂为抗氧剂1010,抗氧剂168的混合物。
作为一种优选的方案,所述抗氧剂1010,抗氧剂168的重量比为(1~2):1。
作为一种优选的方案,所述抗氧剂1010,抗氧剂168的重量比为1:1。
作为一种优选的方案,所述软质PVC层,按重量份计,原料至少包括:PVC树脂粉50~80份,增塑剂20~60份,钙锌复合稳定剂2~6份,滑石粉5~20份。
作为一种优选的方案,所述软质PVC层,按重量份计,原料至少包括:PVC树脂粉60~70份,增塑剂30~40份,钙锌复合稳定剂2~6份,滑石粉10~15份。
作为一种优选的方案,所述PVC树脂粉,可市售,例如山东登诺新材料科技有限公司出售的DN433。
作为一种优选的方案,所述增塑剂为邻苯二甲酸二辛酯(DOP),邻苯二甲酸二异癸酯(DIDP),偏苯三酸三辛酯(TOTM)的一种或多种。
作为一种优选的方案,所述增塑剂为邻苯二甲酸二辛酯,可市售,购买自山东信誉佳化工有限公司。
作为一种优选的方案,所述填料为滑石粉,凹凸棒土,碳酸钙的一种或多种。
作为一种优选的方案,所述滑石粉的平均粒径为1700~2200目,购买自灵寿县盛运矿产品加工厂。
本发明第二方面提供了一种新型环保耐候PVC防水卷材的制备方法,其步骤主要包括:
(1)通过流延设备流延共挤制备得到高耐候PVDF层和粘结层共混层;
(2)通过流延设备单层流延而成,得到软质PVC层;
(3)将步骤(1)中的高耐候PVDF层和粘结层共混层和步骤(2)中的软质PVC层经覆膜机热压,温度为120℃~160℃,复合制得新型环保耐候PVC防水卷材。
有益效果:
1.本发明通过PVDF树脂,ACR抗冲改性剂的重量比为(5~7):1时,在有效地提高了高耐候PVDF层的抗冲击性能,耐候性能,同时也提高了高耐候PVDF层的耐低温性。
2.本发明通过熔融指数为7.5~8.5g/10min乙烯丙烯酸甲酯共聚物与熔融指数为26.0~27.0g/10min的PVDF树脂协同作用,在有效地提高高耐候PVDF层体系中的相容性的同时,同时也提高了高耐候PVDF层与粘结层的粘结作用。
3.本发明通过限定重均分子量为100000~110000,粘度为250~270Cp的聚甲基丙烯酸树脂与丙烯酸树脂的重量比为1:(1.5~2)时,在有效地提高体系的相容性,从而提高了粘结层的粘结力,同时也提高了粘结层的硬度。
4.本发明制备的新型环保耐候PVC防水卷材通过采用高耐候PVDF层、粘结层和软质PVC复合的三层结构,避免了液体的渗入和防水边角的卷曲,同时本发明制备的粘结层将PVDF层和软质PVC层进行覆合,也避免了侧面渗水,整体提高了防水卷材的防水性能。同时制备的防水卷材也具有良好的耐低温性,耐高温和耐候性。
附图说明
图1为新型环保耐候PVC防水卷材的结构示意图。
图中:1、高耐候PVDF层;2、粘结层;3、软质PVC层。
具体实施方式
实施例
实施例1
本发明的实施例1提供了一种新型环保耐候PVC防水卷材,包括高耐候PVDF层、粘结层和软质PVC层。
本实施例中的高耐候PVDF层为30μm;
本实施例中的粘结层的厚度为45μm;
本实施例中的软质PVC层厚度为125μm;
本实施例中的所述高耐候PVDF,按重量份计,原料包括:PVDF树脂60份,填料20份,ACR抗冲改性剂10份,相容剂7份,抗氧剂2份,UV吸收剂2份。
本实施例中PVDF树脂的熔融指数为26.4g/10min,230℃,5.0kg,购买自乳源共阳光氟树脂有限公司的HEVER-201。
本实施例中填料为钛白粉,购买自亨斯曼TR-28。
本实施例中所述UV吸收剂为苯并***系化合物购买自巴斯夫UV-P。
本实施例中ACR抗冲改性剂为核壳结构的ACR(丙烯酸酯)类抗冲改性剂,购买自陶氏2311。
本实施例中相容剂为乙烯丙烯酸甲酯共聚物。所述乙烯丙烯酸甲酯共聚物的熔融指数为8g/10min,(190℃/2.16kg),购买自美国陶氏AC1820。
本实施例中的粘结层为丙烯酸树脂和甲基丙烯酸树脂改性料,按重量份计,原料包括:聚甲基丙烯酸树脂30份、丙烯酸树脂65份、抗氧剂1份、耐水解剂1份、紫外吸收剂1份。
本实施例中的聚甲基丙烯酸树脂的重均分子量为MW=103000;所述聚甲基丙烯酸树脂的粘度为260Cp,23℃,购买自韩国LGIF850B。
本实施例中的丙烯酸树脂为WSD-1722,购买自常州威斯敦粘合材料责任有限公司。
本实施例中的耐水解剂为聚碳化而亚胺UN-03,购买自上海尤恩化工有限公司。
本实施中的抗氧剂为同一种物质。
本实施例中抗氧剂为抗氧剂1010,抗氧剂168的混合物。
本实施例中抗氧剂1010,抗氧剂168的重量比为1:1。所述抗氧剂1010,抗氧剂168均购买自巴斯夫。
本实施例中的紫外吸收剂为苯酮系化合物,购买自巴斯夫UV-531。
本实施例中的软质PVC层,按重量份计,原料包括:PVC树脂粉65份,增塑剂40份,钙锌复合稳定剂4份,滑石粉12份。
本实施例中的PVC树脂粉,购买自山东登诺新材料科技有限公司出售的DN433。
本实施例中的增塑剂为邻苯二甲酸二辛酯,购买自山东信誉佳化工有限公司。
本实施例中的钙锌稳定剂购买自济南汇锦川商贸有限公司。
本实施例中的滑石粉的平均粒径为2000目,购买自灵寿县盛运矿产品加工厂。
本实施例一种新型环保耐候PVC防水卷材的制备方法,其步骤包括:
(1)通过流延设备流延共挤制备得到高耐候PVDF层和粘结层共混层;
(2)通过流延设备单层流延而成,得到软质PVC层;
(3)将步骤(1)中的高耐候PVDF层和粘结层共混层和步骤(2)中的软质PVC层经覆膜机热压,温度为140℃,复合制得新型环保耐候PVC防水卷材。
实施例2
实施例2的具体实施方式同实施例1;不同的是,实施例2提供了一种新型环保耐候PVC防水卷材,包括高耐候PVDF(聚偏氟乙烯)层、粘结层和软质PVC(聚氯乙烯)层。
本实施例中的所述高耐候PVDF层为50μm;
本实施例中的粘结层的厚度为35μm;
本实施例中的软质PVC层厚度为150μm;
实施例3
实施例3的具体实施方式同实施例1;不同的是,实施例3所述高耐候PVDF,按重量份计,原料包括:PVDF树脂60份,填料20份,ACR抗冲改性剂11份,相容剂8份,抗氧剂3份,苯并***系化合物3份。
实施例4
实施例4的具体实施方式同实施例1;不同的是,实施例3所述粘结层为丙烯酸树脂和甲基丙烯酸树脂改性料。所述丙烯酸树脂和甲基丙烯酸树脂改性料,按重量份计,原料包括:聚甲基丙烯酸树脂40份、丙烯酸树脂70份、抗氧剂2份、耐水解剂2份、紫外吸收剂2份。
实施例5
实施例5的具体实施方式同实施例1;不同的是,实施例5所述软质PVC层,按重量份计,原料包括:PVC树脂粉70份,增塑剂40份,钙锌复合稳定剂6份,滑石粉15份。
性能测试:
(1)紫外老化:依据GB/T 16422.3-2014进行检测。
(2)水汽透过率:依据GB/T21529标准测试水汽透过率。
(3)冷热循环:依据IEC 61215-2-2016进行检测。温度:-40~85℃;循环次数:100。
(4)表面硬度:依据GB/T 6739-2006进行检测。
性能测试结果:
表1是实施例1和对比例所制备防水卷材的性能测试结果。
表1
Claims (10)
1.一种新型环保耐候PVC防水卷材,其特征在于,包括高耐候PVDF层、粘结层和软质PVC层。
2.根据权利要求1所述的新型环保耐候PVC防水卷材,其特征在于,所述高耐候PVDF层的厚度为5μm~50μm;所述粘结层的厚度为10μm~80μm;所述软质PVC层的厚度为50μm~200μm。
3.根据权利要求1-2任一项所述的新型环保耐候PVC防水卷材,其特征在于,所述高耐候PVDF层,按重量份计,原料至少包括:PVDF树脂50~70份,填料10~30份,ACR抗冲改性剂9~11份,相容剂3~10份,抗氧剂0.05~5份,苯并***系化合物0.05~5份。
4.根据权利要求3所述的新型环保耐候PVC防水卷材,其特征在于,所述PVDF树脂的熔融指数为26.0~27.0g/10min,230℃,5.0kg。
5.根据权利要求1-2任一项的新型环保耐候PVC防水卷材,其特征在于,所述粘结层为丙烯酸树脂和甲基丙烯酸树脂改性料。
6.根据权利要求5所述的新型环保耐候PVC防水卷材,其特征在于,所述丙烯酸树脂和甲基丙烯酸树脂改性料,按重量份计,原料至少包括:聚甲基丙烯酸树脂30~40份、丙烯酸树脂60~70份、抗氧剂0.1~2份、耐水解剂0.1~2份、紫外吸收剂0.1~2份。
7.根据权利要求6所述的新型环保耐候PVC防水卷材,其特征在于,所述聚甲基丙烯酸树脂的重均分子量为100000~110000;粘度为260Cp,23℃。
8.根据权利要求6所述的新型环保耐候PVC防水卷材,其特征在于,所述聚甲基丙烯酸树脂,丙烯酸树脂的重量比为1:(1.5~2)。
9.根据权利要求1-2任一项的新型环保耐候PVC防水卷材,其特征在于,所述软质PVC层,按重量份计,原料至少包括:PVC树脂粉50~80份,增塑剂20~60份,钙锌复合稳定剂2~6份,滑石粉5~20份。
10.一种根据权利要求1-9任一项所述的新型环保耐候PVC防水卷材的制备方法,其特征在于,步骤包括:
(1)通过流延设备流延共挤制备得到高耐候PVDF层和粘结层共混层;
(2)通过流延设备单层流延而成,得到软质PVC层;
(3)将步骤(1)中的高耐候PVDF层和粘结层共混层和步骤(2)中的软质PVC层经覆膜机热压,温度为120℃~160℃,复合制得新型环保耐候PVC防水卷材。
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CN110511694A (zh) * | 2019-08-19 | 2019-11-29 | 上海优珀斯材料科技有限公司 | 一种防水卷材用pvdf复合pvc抗紫外片材及制备方法 |
CN111169128A (zh) * | 2020-01-19 | 2020-05-19 | 嘉兴高正新材料科技股份有限公司 | 一种多层共挤户外耐候薄膜 |
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