WO2021097942A1 - 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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WO2021097942A1
WO2021097942A1 PCT/CN2019/123486 CN2019123486W WO2021097942A1 WO 2021097942 A1 WO2021097942 A1 WO 2021097942A1 CN 2019123486 W CN2019123486 W CN 2019123486W WO 2021097942 A1 WO2021097942 A1 WO 2021097942A1
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Prior art keywords
adhesive layer
hot
sensitive adhesive
melt pressure
parts
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PCT/CN2019/123486
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English (en)
French (fr)
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杨力
蔡健
李忠人
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江苏凯伦建材股份有限公司
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Publication of WO2021097942A1 publication Critical patent/WO2021097942A1/zh

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    • C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J153/02—Vinyl aromatic monomers and conjugated dienes
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    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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    • C09J11/06—Non-macromolecular additives organic
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    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C09J123/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
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    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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    • C09J7/241—Polyolefin, e.g.rubber
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    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
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    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof

Definitions

  • the present invention relates to the field of waterproofing, and in particular to a pre-laid polymer waterproof coiled material.
  • the currently known polymer sheet is used as the carrier, the hot melt pressure-sensitive adhesive is used as the adhesive layer, and the surface is covered with a layer of white cement sand as the anti-sticking layer.
  • the pre-paved polymer waterproofing membrane has a better waterproof effect than the asphalt-based pre-paved polymer waterproofing membrane.
  • the white cement sand used in the anti-adhesive layer of the pre-laid polymer waterproof membrane because the particle size of the white cement sand is larger than the thickness of the hot-melt pressure-sensitive adhesive layer, cannot guarantee that its particles are completely embedded in the hot-melt pressure-sensitive adhesive during the production process. Layer, sand will fall off during transportation and use, which will affect the actual construction.
  • the anti-sticking particles can be better combined with the hot melt pressure-sensitive adhesive layer because of the smaller particle size, and will not fall during transportation.
  • the particle size of the white cement sand is due to It is very small, so when the temperature is high, it is easier to fall into the hot melt pressure-sensitive adhesive layer and fail to achieve the convex effect.
  • the hot melt pressure-sensitive adhesive loses the coverage of the anti-sticking particles and is exposed to the outside, which will be on the coil. Adhesion when rolled up or stepped on by construction workers.
  • the purpose of the present invention is to provide a pre-laid polymer waterproof membrane to solve the above-mentioned problems in the prior art.
  • a pre-laid polymer waterproof roll material includes a sheet-like polymer carrier, a hot-melt pressure-sensitive adhesive layer on the sheet-like polymer carrier, and a number of anti-adhesive particles on the hot-melt pressure-sensitive adhesive layer.
  • the particle size of the anti-sticking particles is smaller than the thickness of the hot-melt pressure-sensitive adhesive layer, the surface of the anti-sticking particles is wrapped with an organic layer, and the anti-sticking particles are connected to the hot-melt pressure-sensitive adhesive layer through the organic layer;
  • the organic layer includes the following components:
  • crosslinking agent 0.3-1 parts by weight of crosslinking agent
  • Antioxidant 0.5-1 parts by weight
  • the sheet-like polymer carrier includes polyethylene, polypropylene, ethylene-olefin copolymer, ethylene-vinyl acetate copolymer, polyvinyl acetate, polyethyl acrylate, polytetrafluoroethylene, polyvinylidene fluoride Ethylene, polyethylene terephthalate, polyvinyl chloride, polyamide, or a combination of two or more of these materials.
  • the hot melt pressure-sensitive adhesive layer includes a butyl rubber-based adhesive, a polyisobutylene-based adhesive, a butyl-based adhesive, an acrylic-based adhesive, and styrene-isoprene-styrene -Based adhesives, styrene-ethylene-butene-styrene-based adhesives, styrene-butadiene-styrene-based adhesives, styrene-butadiene-based adhesives, or two of these materials One or more combinations.
  • the solvent is an aqueous solvent or an oily solvent.
  • the aqueous solvent is water;
  • the oily solvent is acetone, methyl ethyl ketone or ethyl acetate.
  • the filler is calcium carbonate, silicon dioxide, magnesium silicate, aluminum hydroxide or aluminum oxide;
  • the pigment is titanium dioxide or zinc oxide;
  • the anti-ultraviolet agent is a composite anti-ultraviolet agent;
  • the crosslinking agent is isocyanate;
  • the thickening agent is bentonite;
  • the antioxidant is phenolic antioxidant.
  • the thickness of the sheet-shaped polymer carrier is 0.3-2 mm
  • the thickness of the hot-melt pressure-sensitive adhesive layer is 0.1-0.5 mm
  • the particle size of the anti-sticking particles is 0.1-0.3 mm.
  • the anti-sticking particles include quartz sand, cement powder, mica, clay, aluminum hydroxide, aluminum oxide, or a combination of two or more of these materials.
  • titanium dioxide is rutile nanometer titanium dioxide.
  • one side of the surface of the hot-melt pressure-sensitive adhesive layer is exposed, and the exposed hot-melt pressure-sensitive adhesive layer is bonded with a peelable isolation film, and the bottom of the sheet-shaped polymer carrier
  • An adhesive layer is provided on the other side of the adhesive layer, a peelable isolation film is adhered to the adhesive layer, and the adhesive layer is a hot-melt pressure-sensitive adhesive layer.
  • the present invention has the following beneficial effects:
  • the particle size of the anti-sticking particles selected in this application is smaller than the thickness of the hot-melt pressure-sensitive adhesive layer.
  • the anti-sticking particles can better combine with the hot-melt pressure-sensitive adhesive layer and will not fall during transportation.
  • the surface of the sticky particles is wrapped with an organic layer, which avoids the reduction of the particle size of the sticky particles. When the temperature is high or the load is heavy, the sticky particles are more likely to fall into the hot melt pressure-sensitive adhesive layer, making the hot melt pressure
  • the sensitive adhesive layer loses the coverage of the anti-adhesive particles and is exposed to the outside, which will cause adhesion problems when the pre-laid polymer waterproof membrane is rolled up or when the construction personnel step on it.
  • the polyurethane resin can chemically react with concrete to achieve better adhesion.
  • Fillers and pigments can increase the surface roughness of the anti-sticking particles, so that the anti-sticking particles are not easy to sink.
  • the fillers and pigments themselves As the part of inorganic molecules exposed to the outside, it also has anti-sticking effect.
  • Pigments can also prevent ultraviolet through the mechanism of reflecting ultraviolet rays.
  • Anti-ultraviolet agents have anti-ultraviolet effects, antioxidants have anti-aging effects, and thickeners can prevent thickening.
  • the pigments and fillers in the emulsion sink, and the cross-linking agent cross-links the water-based polyurethane resin molecules together, reducing the viscosity of the polyurethane resin alone.
  • Fig. 1 is a schematic structural diagram of a waterproof roll provided by an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the connection relationship between the pre-laid polymer waterproof roll material and the adhesive tape provided by the embodiment of the present invention.
  • the pre-laid polymer waterproof membrane of the present application includes a sheet-like polymer carrier 1, a hot-melt pressure-sensitive adhesive layer 2 on the sheet-like polymer carrier 1, and a hot melt There are several release particles 3 on the pressure-sensitive adhesive layer 2.
  • the particle size of the release particles 3 is smaller than the thickness of the hot-melt pressure-sensitive adhesive layer 2.
  • the surface of the release particles 3 wraps the organic layer 4, and the release particles 3 pass through the organic layer 4 Connect with the hot-melt pressure-sensitive adhesive layer 2;
  • the organic layer 4 includes the following components:
  • crosslinking agent 0.3-1 parts by weight of crosslinking agent
  • Antioxidant 0.5-1 parts by weight
  • the sheet-like polymer carrier 1 includes polyethylene, polypropylene, ethylene-olefin copolymer, ethylene-vinyl acetate copolymer, polyvinyl acetate, polyethyl acrylate, polytetrafluoroethylene, polyvinylidene fluoride , Polyethylene terephthalate, polyvinyl chloride, polyamide, or a combination of two or more of these materials.
  • the hot-melt pressure-sensitive adhesive layer 2 includes a butyl rubber-based adhesive, a polyisobutylene-based adhesive, a butyl-based adhesive, an acrylic-based adhesive, and a styrene-isoprene-styrene-based adhesive.
  • Adhesives styrene-ethylene-butene-styrene-based adhesives, styrene-butadiene-styrene-based adhesives, styrene-butadiene-based adhesives, or two of these materials Or a combination of more.
  • the solvent is an aqueous solvent or an oily solvent.
  • the aqueous solvent is water;
  • the oily solvent is acetone, methyl ethyl ketone or ethyl acetate.
  • the filler is calcium carbonate, silicon dioxide, magnesium silicate, aluminum hydroxide or aluminum oxide;
  • the pigment is titanium dioxide or zinc oxide;
  • the anti-ultraviolet agent is a composite anti-ultraviolet agent;
  • the crosslinking agent is an isocyanate; thickening
  • the agent is bentonite;
  • the antioxidant is a phenolic antioxidant.
  • the thickness of the sheet-like polymer carrier 1 is 0.3-2 mm, preferably 0.6-1.5 mm, more preferably 0.7-1.2 mm, and most preferably 0.9 mm.
  • the thickness of the hot melt pressure-sensitive adhesive layer 2 is 0.1-0.5 mm, preferably 0.2-0.45 mm, more preferably 0.25-0.40 mm.
  • the particle size of the anti-sticking particles 3 is 0.1-0.3 mm, preferably 0.15-0.25 mm, more preferably 0.15-0.2 mm.
  • the anti-sticking particles 3 include quartz sand, cement powder, mica, clay, aluminum hydroxide, aluminum oxide, or a combination of two or more of these materials.
  • the titanium dioxide is rutile nanometer titanium dioxide.
  • the exposed hot-melt pressure-sensitive adhesive layer 2 is bonded with a peelable isolation film 5, and the bottom of the sheet-shaped polymer carrier 1 is another An adhesive layer 6 is provided on one side, a peelable isolation film 5 is bonded on the adhesive layer 6, and the adhesive layer 6 is a hot-melt pressure-sensitive adhesive layer.
  • the isolation film 5 can be directly torn off, and the hot-melt pressure-sensitive adhesive layer 2 and the adhesive layer 6 can be directly removed. Bonding.
  • the isolation film 5 plays a role of isolating the viscosity of the exposed hot-melt pressure-sensitive adhesive layer 2 and the adhesive layer 6 when the polymer waterproof membrane is pre-laid for transportation.
  • the pre-laid polymer waterproof membrane of the present invention includes the following two processing methods:
  • a processing method of the pre-laid polymer waterproof membrane of the present invention includes the following steps:
  • the hot-melt pressure-sensitive adhesive is coated on the sheet-shaped polymer carrier 1 to form the hot-melt pressure-sensitive adhesive layer 2.
  • the coating temperature of hot-melt pressure-sensitive adhesive is 150-180°C, and the coating method includes die slot extrusion, choice of doctor blade coating or roller coating.
  • the emulsion is prepared according to the above ratio, alumina is selected as the anti-sticking particles 3, the prepared emulsion is added to the alumina particles with a particle size of 0.15-0.21 mm, and the emulsion is uniformly wrapped on the surface of the alumina particles.
  • the treated alumina particles are evenly coated on the hot-melt pressure-sensitive adhesive layer 2 at 60-70°C.
  • Another processing method of the pre-laid polymer waterproof membrane of the present invention includes the following steps:
  • the hot-melt pressure-sensitive adhesive is coated on the sheet-shaped polymer carrier 1 to form the hot-melt pressure-sensitive adhesive layer 2.
  • the coating temperature of the hot melt pressure sensitive adhesive is 150-180°C, and the coating methods include die slot extrusion, doctor blade coating or roller coating.
  • the emulsion is prepared according to the above ratio, alumina is selected as the anti-sticking particles 3, the prepared emulsion is added to the alumina particles with a particle size of 0.15-0.21 mm, and the emulsion is uniformly wrapped on the surface of the alumina particles.
  • the treated alumina is coated on the release paper, and then transferred to the hot-melt pressure-sensitive adhesive layer 2.
  • the preparation method of the hot melt pressure-sensitive adhesive layer 2 of the present application is:
  • Zhongke Xinyuan PZX-H1100 resin and Kraton rubber 1163 belong to the styrene-butadiene-styrene system in the styrene-butadiene-styrene-based adhesive, and the others belong to the fixing in the adhesive Components.
  • the preparation method of the organic layer 4 in this application is: stirring a solution composed of a solvent and a polyurethane resin at 2000 rpm, adding titanium dioxide R-930 and calcium carbonate CC60, adding antioxidant 1010 and anti-ultraviolet agent 770 after 30 minutes, After 15 minutes, add cross-linking agent X-404 and bentonite, and continue to stir for 30 minutes to discharge.
  • titanium dioxide R-930 is a pigment
  • calcium carbonate CC60 is a filler
  • bentonite is a thickener.
  • the anti-sticking particles 3 are preferably alumina particles, and the particle size of the alumina particles is preferably 0.15-0.21mm. In this application, 0.15mm and 0.21mm alumina are used respectively.
  • the concrete peeling strength under standard curing conditions is as follows: Table 3 shows:
  • Table 4 The relationship between the thickness of the hot melt pressure-sensitive adhesive layer and the peeling strength of concrete
  • the thickness of the hot-melt pressure-sensitive adhesive layer 2 is within the preferred range of 0.2-0.4 mm, and the concrete peel strength exceeds the industry standard 1.5 MPa.
  • Anti-stick particles Concrete peeling strength/MPa Quartz sand 1.9 Mica 2.1 Calcium carbonate 2.3 Alumina 3.2
  • Conventional concrete peeling strength means that the cement curing condition is at 23°C and 95% humidity for 7 days, and the test condition is 23°C, and the waterproof membrane and concrete are peeled at 180°.
  • Heat-treated concrete means that the concrete is placed at a temperature of 70°C for 7 days, and then combined with the waterproof membrane.
  • Water-soaked concrete means that the waterproof membrane is soaked in water for 7 days at 23°C and then combined with the concrete.
  • UV-treated concrete means that the waterproof membrane is under the conditions of 300-400nm UV wavelength, 58-62W/m 2 per square meter, black mark temperature of 62-68°C, and spraying for 18 minutes every 2h at the same time. It lasts for 72 hours and then combines with concrete.

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Abstract

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若干防粘颗粒，所述防粘颗粒的粒径小于所述热熔压敏胶层的厚度，防粘颗粒的表面包裹有机层，防粘颗粒通过有机层与热熔压敏胶层连接；有机层包括如下组分：溶剂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。防粘颗粒不会在运输中掉落，也不会陷于热熔压敏胶层，使热熔压敏胶层暴露在外面，导致在预铺高分子防水卷材卷起来或者施工人员踩上去时候粘连。

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，由于该白水泥沙子粒径大于热熔压敏胶层的厚度，在生产过程中无法保证其颗粒完全嵌入热熔压敏胶层，在运输和使用过程中会掉沙，影响实际的施工。
但是如果把白水泥沙子的直径变小，防粘颗粒因为粒径更小，可以与热熔压敏胶层更好的结合，不会在运输过程中掉落，但是，白水泥沙子粒径因为很小，所以在温度较高时候，更容易陷入热熔压敏胶层而达不到凸起的效果，这时候，热熔压敏胶失去防粘颗粒的覆盖暴露在外面，会在卷材卷起来或者施工人员踩上去时候粘连。
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若干防粘颗粒，所述防粘颗粒的粒径小于所述热熔压敏胶层的厚度，所述防粘颗粒的表面包裹有机层，所述防粘颗粒通过所述有机层与所述热熔压敏胶层连接；
所述有机层包括如下组分：
溶剂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，所述溶剂为水性溶剂或油性溶剂。
进一步地，所述水性溶剂为水；所述油性溶剂为丙酮、丁酮或乙酸乙酯。
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，所述防粘颗粒的粒径为0.1-0.3mm。
进一步地，所述防粘颗粒包括石英砂、水泥粉、云母、粘土、氢氧化铝、氧化铝或这些材料中的二种或更多种的组合。
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：
本申请选用的防粘颗粒的粒径小于热熔压敏胶层的厚度，防粘颗粒能够与热熔压敏胶层更好的结合，不会在运输过程中掉落，并且，通过在防粘颗粒的表面包裹一层有机层，避免了因为防粘颗粒的粒径变小，在温度较高或者负载重压的时候，防粘颗粒更容易陷入热熔压敏胶层，使热熔压敏胶层失去防粘颗粒的覆盖暴露在外面，会在预铺高分子防水卷材卷起来或者施工人员踩上去时候粘连的问题。
本申请的有机层中，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，填料和颜料可以增加防粘颗粒的表面粗糙度，使得防粘颗粒不容易下陷，同时，填料和颜料本身作为无机物分子暴露在外面的部分也具有防粘作用，颜料还可以通过反射紫外线机理防紫外，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，交联剂使水性聚氨酯树脂分子交联在一起，降低聚氨酯树脂单独存在时的粘性。
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-防粘颗粒；4-有机层；5-隔离膜；6-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上的若干防粘颗粒3，防粘颗粒3的粒径小于热熔压敏胶层2的厚度，防粘颗粒3的表面包裹有机层4，防粘颗粒3通过有机层4与热熔压敏胶层2连接；
有机层4包括如下组分：
溶剂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，溶剂为水性溶剂或油性溶剂。
具体地，水性溶剂为水；油性溶剂为丙酮、丁酮或乙酸乙酯。
具体地，填料为碳酸钙、二氧化硅、硅酸镁、氢氧化铝或氧化铝；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；交联剂为异氰酸酯；增稠剂为膨润土；抗氧剂为酚类抗氧剂。
具体地，片状高分子载体1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2的厚度为0.1-0.5mm，优选0.2-0.45mm,更优选0.25-0.40mm。
防粘颗粒3的粒径为0.1-0.3mm，优选0.15-0.25mm,更优选0.15-0.2mm。
具体地，防粘颗粒3包括石英砂、水泥粉、云母、粘土、氢氧化铝、氧化铝或这些材料中的二种或更多种的组合。
具体地，二氧化钛为金红石型的纳米二氧化钛。
具体地，热熔压敏胶层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5，片状高分子载体1的底部的另一侧设有粘胶层6，粘胶层6上粘接有可剥离的隔离膜5，粘胶层6为热熔压敏胶层。
热熔压敏胶层2和粘胶层6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5，通过热熔压敏胶层2和粘胶层6进行粘接。隔离膜5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6的黏性的作用。
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℃，涂布方式包括模槽挤出，选择刮刀刮涂或者压辊滚涂。
根据上述比例制成乳液，选择氧化铝作为防粘颗粒3，在粒径为0.15-0.21mm的氧化铝颗粒中加入制成的乳液，搅拌使乳液均匀的包裹于氧化铝颗粒的表面。
将处理后的氧化铝颗粒，均匀的涂在60-70℃的热熔压敏胶层2上面。
再经50-60℃烘箱干燥，将乳液中的水蒸发。
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℃，涂布方式包括模槽挤出，刮刀刮涂或者压辊滚涂。
根据上述比例制成乳液，选择氧化铝作为防粘颗粒3，将粒径为0.15-0.21mm氧化铝颗粒中加入制成的乳液，搅拌使乳液均匀的包裹于氧化铝颗粒的表面。
将处理后的氧化铝涂布在隔离纸上，然后再转移到热熔压敏胶层2上。
再经50-60℃烘箱干燥，将乳液中的水蒸发。
本申请中的热熔压敏胶层2，将水烘干后的各组分的优选比例，如表1所示：
表1热熔压敏胶配方表
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。
本申请中的有机层4中各组分的优选比例，如表2所示。
表2有机层中各组分比例表
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
本申请中的有机层4的制备方法是：将溶剂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。
本申请中，防粘颗粒3优选为氧化铝颗粒，氧化铝颗粒的粒径优选为0.15-0.21mm，本申请中分别采用0.15mm和0.21mm的氧化铝，标准养护条件下混凝土剥离强度，如表3所示：
表3混凝土剥离强度
氧化铝粒径/mm 混凝土剥离强度/MPa
0.15 3.2
0.21 2.5
通过表3可以得出，本申请的氧化铝颗粒的粒径在0.15-0.21mm的范围内，混凝土剥离强度均超过行业标准的1.5MPa。
热熔压敏胶层2厚度与混凝土剥离强度的关系,如表4所示：
表4热熔压敏胶层的厚度与混凝土剥离强度的关系
热熔压敏胶层厚度/mm 混凝土剥离强度/MPa
0.20 1.7
0.25 2.3
030 2.8
0.35 3.2
0.4 3.5
通过表4可以得出，热熔压敏胶层2厚度在优选的0.2-0.4mm的范围内，混凝土剥离强度均超过行业标准的1.5MPa。
厚度为0.15mm的不同材料的防粘颗粒3与混凝土剥离强度的关系,如表5所示：
表5不同材料的防粘颗粒与混凝土剥离强度的关系
防粘颗粒 混凝土剥离强度/MPa
石英砂 1.9
云母 2.1
碳酸钙 2.3
氧化铝 3.2
通过表5可以得出，0.15mm厚度下不同材料的防粘颗粒3，混凝土剥离强度均超过行业标准的1.5MPa。
不同比例的乳液和氧化铝用量，极限条件处理剥离强度测试，如表6所示：
表6极限条件处理剥离强度测试
比例 1：10 1：20 1：30 1：40
常规混凝土剥离强度/MPa 2.9 3.1 3.3 3.3
热处理混凝土剥离强度/MPa 2.6 2.7 2.7 2.7
泡水混凝土剥离强度/MPa 2.6 2.3 2.1 2.0
紫外处理混凝土剥离强度/MPa 2.5 2.9 3.1 3.1
混凝土泡水剥离强度/MPa 2.4 2.1 1.9 1.8
通过表6可以得出，乳液和氧化铝在上述比例下，都能保证强度超过行业标准的1.5MPa。
混凝土配方包括水、普通硅酸盐水泥和ISO标准沙，水：普通硅酸盐水泥：ISO标准沙＝0.4：1：2。
常规混凝土剥离强度是指，水泥养护条件是在23℃、95％湿度的情况下，养护7天，测试条件是在23℃，防水卷材和混凝土180°剥离。
热处理混凝土是指，将混凝土在70℃的温度下，放置7天，再与防水卷材结合。
泡水混凝土是指，防水卷材是在23℃，水浸泡7天，再与混凝土结合。
紫外处理混凝土是指，防水卷材在300-400nm的紫外波长、辐射照度是每平方米58-62W/m 2、黑标温度为62-68℃、光照同时每2h喷淋18min的条件下,持续72h，再与混凝土结合。
混凝土泡水是指，将养护好的混凝土试样浸入21-25℃的水中28天，再与防水卷材结合。
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若干防粘颗粒，所述防粘颗粒的粒径小于所述热熔压敏胶层的厚度，所述防粘颗粒的表面包裹有机层，所述防粘颗粒通过所述有机层与所述热熔压敏胶层连接；
    所述有机层包括如下组分：
    溶剂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，所述溶剂为水性溶剂或油性溶剂。
  5. 根据权利要求4所述的预铺高分子防水卷材，其特征在于，所述水性溶剂为水；所述油性溶剂为丙酮、丁酮或乙酸乙酯。
  6. 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。
  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，所述防粘颗粒的粒径为0.1-0.3mm。
  8. 根据权利要求1所述的预铺高分子防水卷材，其特征在于，所述防粘颗粒包括石英砂、水泥粉、云母、粘土、氢氧化铝、氧化铝或这些材料中的二种或更多种的组合。
  9. 根据权利要求6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。
  10. 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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CN110435273A (zh) * 2019-08-01 2019-11-12 江苏凯伦建材股份有限公司 一种预铺防水卷材及其制备方法

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