WO2017066990A1 - 一种单层屋面防水卷材及其制备方法 - Google Patents

一种单层屋面防水卷材及其制备方法 Download PDF

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WO2017066990A1
WO2017066990A1 PCT/CN2015/092674 CN2015092674W WO2017066990A1 WO 2017066990 A1 WO2017066990 A1 WO 2017066990A1 CN 2015092674 W CN2015092674 W CN 2015092674W WO 2017066990 A1 WO2017066990 A1 WO 2017066990A1
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layer
waterproofing membrane
parts
base fabric
warp
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PCT/CN2015/092674
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English (en)
French (fr)
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苏忠毅
刘志维
梁卫业
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北京东方雨虹防水技术股份有限公司
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Application filed by 北京东方雨虹防水技术股份有限公司 filed Critical 北京东方雨虹防水技术股份有限公司
Priority to CN201580083953.1A priority Critical patent/CN108136748A/zh
Priority to PCT/CN2015/092674 priority patent/WO2017066990A1/zh
Publication of WO2017066990A1 publication Critical patent/WO2017066990A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives

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  • the invention belongs to the technical field of waterproof coil materials, and in particular relates to a single-layer roof waterproofing membrane and a preparation method thereof.
  • the base fabric material (also called the reinforcement layer) of the single-layer roof waterproofing membrane is mostly a glass fiber mesh cloth or a polyester fiber mesh cloth.
  • Glass fiber has good dimensional stability, but its elongation at break is low and its fatigue resistance is poor. When the glass fiber is aged, its physical properties will be significantly reduced. Therefore, when the glass fiber is used as a base fabric, the fiber is easily injured. Breaking, shortening the service life of waterproof coil products.
  • the polyester fiber is easy to shrink and the size is unstable. At the same time, it is easy to generate static electricity, and there are certain safety hazards in the production process.
  • the existing polyester fiber reinforced waterproof coil material is easy to tear and break when faced with a transient large wind load, and forms an empty drum, causing roof leakage.
  • the invention provides a single-layer roof waterproofing membrane and a preparation method thereof for the problem of the performance defect of the existing single-layer roof waterproofing membrane.
  • a single-layer roofing waterproofing membrane comprising a top layer, a bottom layer and a base fabric between the top layer and the bottom layer, the base fabric comprising a warp knitted aramid fiber mesh, the raw materials of the top layer and the bottom layer comprising a polymer Resins and additives.
  • the base fabric is a warp-intermediate aramid (PMIA poly(m-phenylene isophthalamide) fiber mesh cloth.
  • the PMIA fiber may be selected from one or several of Nomex, Conex, Fenelon, and Temeta, and other types of PMIA fiber products other than the above models can achieve the same technical effect.
  • the single-layer roof waterproofing membrane has a total thickness of 1.00 to 2.00 mm
  • the surface layer has a thickness of 0.45 to 0.8 mm
  • the bottom layer has a thickness of 0.45 to 0.8 mm
  • the base fabric has a thickness of 0.1 to 0.4 mm. .
  • the warp knitted aramid fiber mesh has a warp fineness of 500D to 2000D and a weft fineness of 500D to 2000D.
  • the warp knitted aramid fiber mesh has a warp fineness of 1200 D and a weft fineness of 1200 D.
  • the warp knitted aramid fiber mesh has a density of 5 to 20 pieces/cm and a weft density of 5 to 20 pieces/cm.
  • the warp knitted aramid fiber mesh has a tissue density of 9 lines/cm and a weft density of 9 pieces/cm.
  • the polymer resin comprises any one or a mixture of ethylene propylene diene monomer (EPDM), polyvinyl chloride (PVC), thermoplastic polyolefin (TPO).
  • EPDM ethylene propylene diene monomer
  • PVC polyvinyl chloride
  • TPO thermoplastic polyolefin
  • the auxiliary agent comprises any one or a mixture of an antioxidant, a light stabilizer, a pigment, a filler, and a flame retardant.
  • the weight fraction of the raw material of the bottom layer is: 50 to 80 parts of the polymer resin, 0.1 to 1 part of the antioxidant, 0.1 to 1 part of the light stabilizer, 0 to 8 parts of the pigment, and 10 to 40 parts of the filler. 0 to 20 parts of flame retardant;
  • the parts by weight of the top layer raw material are: 50 to 80 parts of polymer resin, 0.1 to 1 part of antioxidant, light stabilizer, 0.1 to 1 part, 0 to 8 parts of pigment, 10 to 40 parts of filler, and flame retardant 0 to 20 parts.
  • the raw materials of the top layer and the bottom layer may be the same or different.
  • the top layer is a light layer and the bottom layer is a dark layer.
  • the invention also provides a preparation method of the above single-layer roof waterproofing membrane, which comprises the following steps:
  • Extrusion of the bottom layer pellets and the base fabric are heat-compressed into a bottom layer and cooled, and the base fabric includes Aramid fiber mesh cloth;
  • the surface layer pellets are extruded to a three-roll calender and the base fabric is heat-compressed into a surface layer, and cooled to obtain a single-layer roof waterproofing membrane.
  • the base fabric comprises a warp-knitted aramid fiber mesh cloth, wherein the PMIA has high impact strength and good heat resistance, and belongs to the flame-retardant fiber, and no static electricity is generated during the production process. It can effectively guarantee the safety of the production environment and related personnel.
  • the base fabric is more flat, its dimensional stability is strong, and the appearance of the waterproofing membrane is flat. Under the protection of the surface layer and the bottom layer, the coil has better structural stability. Sex, heat resistance and flame retardancy, single-layer roofing waterproofing membranes have a long life for long-term exposure.
  • the single-layer roof waterproofing membrane of the invention has excellent tensile strength and tear resistance, and has good wind-resisting ability, and can reduce mechanicality under the premise of constant width compared with the conventional mechanical fixing process. Fix the nail density, reduce the construction workload and improve work efficiency.
  • the single-layer roof waterproofing membrane of the invention is suitable for various waterproofing projects, and is especially suitable for roofing waterproofing projects in coastal cities, typhoon-prone areas and northern wind-stricken cities.
  • FIG. 1 is a schematic structural view of a single-layer roof waterproofing membrane according to Embodiment 2 of the present invention.
  • the reference numerals are: 1, the base fabric; 2, the surface layer; 3, the bottom layer.
  • the embodiment provides a single-layer roof waterproofing membrane, comprising a surface layer, a bottom layer and a base fabric between the surface layer and the bottom layer, the base fabric comprising a warp knitted aramid fiber mesh cloth, the surface layer and the bottom layer
  • the raw materials include polymer resins and auxiliaries.
  • the base fabric comprises a warp knitted aramid fiber mesh cloth, wherein the aramid fiber has high impact strength and good heat resistance, and belongs to the flame retardant fiber. No static electricity is produced during the production process, which can effectively ensure the safety of the production environment and related personnel.
  • the single-layer roof waterproofing membrane with warp-knitted aramid fiber mesh cloth as the base fabric the base fabric is more flat, the dimensional stability is strong, the appearance of the waterproof coiled material is good, and under the protection of the surface layer and the bottom layer, the coil
  • the material has better structural stability, heat resistance and flame retardancy, and the life of the single-layer roof waterproofing membrane is long-term exposure.
  • the single-layer roof waterproofing membrane of the invention has excellent tensile strength and tear resistance, and has good wind-resisting ability, and can reduce mechanicality under the premise of constant width compared with the conventional mechanical fixing process. Fix the nail density, reduce the construction workload and improve work efficiency.
  • the single-layer roof waterproofing membrane of the invention is suitable for various waterproofing projects, and is especially suitable for roofing waterproofing projects in coastal cities, typhoon-prone areas and northern wind-stricken cities.
  • the embodiment provides a single-layer roof waterproofing membrane, as shown in FIG. 1 , comprising a surface layer, a bottom layer and a base fabric between the surface layer and the bottom layer, wherein the base fabric is warp knitted meta-aramid fiber (PMIA). Grid cloth.
  • the single-layer roofing waterproofing membrane has a total thickness of 1.5 mm, the facing layer has a thickness of 0.6 mm, the bottom layer has a thickness of 0.7 mm, and the base fabric has a thickness of 0.2 mm.
  • the base fabric has a warp fineness of 1200 D, a weft fineness of 1200 D, and a tissue density of 9 warps/cm and 9 wefts/cm.
  • the parts by weight of the bottom material are: 70 parts of fully polymerized TPO resin, 0.25 parts of antioxidant (antioxidant 168), 0.25 parts of light stabilizer (hindered amine composite light stabilizer), pigment (titanium dioxide and masterbatch) 4.5 parts, 27 parts of filler (calcium carbonate), and 8 parts of flame retardant (magnesium hydroxide).
  • the parts by weight of the top layer raw material are: 70 parts of fully polymerized TPO resin, 0.25 parts of antioxidant (antioxidant 1010), 0.25 parts of light stabilizer (hindered amine type composite light stabilizer), pigment (titanium dioxide and masterbatch) 4.5 parts, 27 parts of filler (calcium carbonate), and 8 parts of flame retardant (magnesium hydroxide).
  • the fully polymerized TPO resin is mixed with an auxiliary agent and then granulated by a granulator to obtain a bottom layer pellet and a surface layer pellet;
  • the surface layer pellets are extruded to a three-roll calender and the base fabric is heat-compressed into a surface layer, and cooled to obtain a single-layer roof waterproofing membrane.
  • the embodiment provides a single-layer roof waterproofing membrane, and the preparation method thereof is similar to that of the embodiment 2, and the difference from the embodiment 2 is as follows:
  • the total thickness of the single-layer roof waterproofing membrane is 1.5 mm, wherein the surface layer is 0.6 mm, the bottom layer is 0.7 mm, and the base fabric is 0.2 mm.
  • the warp yarn has a warp fineness of 800D, a weft fineness of 800D, and a tissue density of 7 warps/cm and 7 wefts/cm.
  • Example 2 The performance test of the single-layer roof waterproofing membrane products of Example 2 and Example 3 was carried out.
  • the tensile properties and tear strength of the product were tested according to the corresponding test methods in GB27789-2011 "Temperature Polyolefin (TPO) Waterproof Coil".
  • TPO Temporal Polyolefin
  • the wind resistance test was conducted according to American ANSI/FM4474-2004. The test results are shown in Table 1.
  • the high wind-resistant single-layer roofing waterproofing membrane of the invention has excellent comprehensive performance and various performances are higher than the corresponding performance indexes of GB27789-2011, and can well meet the harsh climates such as coastal areas and mountainous areas.
  • the needs of roofing projects such as districts and national key projects.
  • the embodiment provides a single-layer roof waterproofing membrane, and the preparation method thereof is similar to that of the embodiment 2, and the difference from the embodiment 2 is as follows:
  • the single-layer roofing waterproofing membrane has a total thickness of 1.20 mm, the facing layer has a thickness of 0.45 mm, the bottom layer has a thickness of 0.45 mm, and the base fabric has a thickness of 0.3 mm.
  • the warp yarn has a warp fineness of 500D, a weft fineness of 500D, and a tissue density of 5 warps/cm and 10 wefts/cm.
  • the parts by weight of the bottom material are: 60 parts of polymer resin, 0.1 parts of antioxidant, 0.1 part of light stabilizer, 1 part of pigment, 30 parts of filler, and 10 parts of flame retardant;
  • the parts by weight of the top layer raw material are: 60 parts of polymer resin, 0.1 part of antioxidant, 0.1 part of light stabilizer, 2 parts of pigment, 30 parts of filler, and 10 parts of flame retardant.
  • the embodiment provides a single-layer roof waterproofing membrane, and the preparation method thereof is similar to that of the embodiment 2, and the difference from the embodiment 2 is as follows:
  • the single-layer roofing waterproofing web has a total thickness of 2.00 mm, the facing layer has a thickness of 0.8 mm, the bottom layer has a thickness of 0.8 mm, and the base fabric has a thickness of 0.4 mm.
  • the warp yarn has a warp fineness of 2000D, a weft fineness of 2000D, and a tissue density of 20 warps/cm and a weft thread of 15/cm.
  • the parts by weight of the bottom material are: 80 parts of polymer resin, 1 part of antioxidant, 1 part of light stabilizer, 1 part of pigment, 15 parts of filler, 5 parts of flame retardant;
  • the parts by weight of the top layer raw material are: 80 parts of polymer resin, 1 part of antioxidant, 1 part of light stabilizer, 1 part of pigment, 15 parts of filler, and 5 parts of flame retardant.
  • the embodiment provides a single-layer roof waterproofing membrane, and the preparation method thereof is similar to that of the embodiment 2, and the difference from the embodiment 2 is as follows:
  • the polymer resins are: ethylene propylene diene monomer and polyvinyl chloride.
  • the embodiment provides a single-layer roof waterproofing membrane, which is prepared in the same manner as in the second embodiment, and is different from the embodiment 2 in that the base fabric is a warp-knit para-aramid (PPTA poly-p-phenylene terephthalate). Diamine) fiber mesh cloth.
  • the base fabric is a warp-knit para-aramid (PPTA poly-p-phenylene terephthalate). Diamine) fiber mesh cloth.
  • the specific embodiments of the above embodiments may also be subjected to many changes; for example, the material of the surface layer or the bottom layer may be selected according to actual conditions, and specifically, the type or the weight fraction of the auxiliary materials in the raw material may be changed to prepare. Different finishes or bottom layers.

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Abstract

一种单层屋面防水卷材及其制备方法，该防水卷材包括面层（2），底层（3）以及设置在其间的基布（1），基布（1）包括经编芳纶纤维网格布，基布平整，尺寸稳定性强，防水卷材外观平直度好，卷材结构稳定性、耐热性、阻燃性和抗撕裂性好，长期暴露使用的寿命较高，施工工作量小，工作效率高。该单层屋面防水卷材适用于各种防水工程，尤其适用于沿海城市、台风多发区域及北部风力较大城市的屋面防水工程。

Description

一种单层屋面防水卷材及其制备方法 技术领域
本发明属于防水卷材技术领域，具体涉及一种单层屋面防水卷材及其制备方法。
背景技术
在沿海或者山区等风力较大的地区的屋面防水工程中，为了提高防水材料的抗风揭能力，具体施工中往往需要加大机械固定穿钉密度或者缩短防水卷材幅宽。这样虽然改善了防水材料的抗风揭能力，但是对防水卷材的性能提出了更高的要求。目前，单层屋面防水卷材的基布材料(也称增强层)多为玻璃纤维网格布或聚酯纤维网格布。
发明人发现现有技术中至少存在如下问题：
玻璃纤维具有较好的尺寸稳定性，但是其断裂伸长率较低，耐疲劳性较差，当玻璃纤维老化时，其物理性能会明显下降，因此玻璃纤维作为基布使用时，纤维易受伤断裂，缩短防水卷材产品的使用寿命。
聚酯纤维在加工过程中材料容易收缩，尺寸不稳定，同时其极易产生静电现象，生产过程存在一定安全隐患。现有的聚酯纤维增强防水卷材，面对瞬时较大的风力载荷时容易撕裂破坏，形成空鼓，引起屋面渗漏。
发明内容
本发明针对现有的单层屋面防水卷材性能缺陷的问题，提供一种单层屋面防水卷材及其制备方法。
解决本发明技术问题所采用的技术方案是：
一种单层屋面防水卷材，包括面层、底层以及面层与底层之间的基布，所述基布包括经编芳纶纤维网格布，所述面层和底层的原料包括聚合物树脂与助剂。
优选的，所述基布为经编间位芳纶(PMIA聚间苯二甲酰间苯二胺)纤维网格布。
其中，PMIA纤维可选自Nomex，Conex，Fenelon，泰美达中的一种或者几种，除上述型号外的其它型号的PMIA纤维商品也可达到相同的技术效果。
优选的，所述单层屋面防水卷材总厚度为1.00～2.00mm，所述面层厚度为0.45～0.8mm，所述底层厚度为0.45～0.8mm，所述基布厚度为0.1～0.4mm。
优选的，所述经编芳纶纤维网格布的经纱细度500D～2000D，纬纱细度500D～2000D。
更优选的，所述经编芳纶纤维网格布的经纱细度为1200D，纬纱细度1200D。
优选的，所述经编芳纶纤维网格布的组织密度为：经线密度为5～20根/cm，纬线密度为5～20根/cm。
更优选的，所述经编芳纶纤维网格布的组织密度为：经线密度为9根/cm，纬线密度为9根/cm。
优选的，所述聚合物树脂包括三元乙丙橡胶(EPDM)、聚氯乙烯(PVC)、热塑性聚烯烃(TPO)中的任意一种或者几种的混合物。
优选的，所述助剂包括抗氧剂，光稳定剂，颜料，填料，阻燃剂中的任意一种或几种的混合物。
优选的，所述底层原料的重量份数为：聚合物树脂50～80份，抗氧剂0.1～1份，光稳定剂，0.1～1份，颜料0～8份，填料10～40份，阻燃剂0～20份；
所述面层原料的重量份数为：聚合物树脂50～80份，抗氧剂0.1～1份，光稳定剂，0.1～1份，颜料0～8份，填料10～40份，阻燃剂0～20份。
其中，面层与底层的原料可以相同，也可以不同。一般面层为浅色层，底层为深色层。
本发明还提供一种上述单层屋面防水卷材的制备方法，具体包括以下步骤：
将包括聚合物树脂与助剂的原料混合后造粒，得到底层粒料和面层粒料；
将底层粒料挤出与基布热压复合为底层并冷却，所述基布包括经 编芳纶纤维网格布；
将面层粒料挤出至三辊压光机与基布热压复合为面层，并冷却得到单层屋面防水卷材。
本发明的单层屋面防水卷材中，基布包括经编芳纶纤维网格布，其中，PMIA抗冲击强度高，耐热性好，属于阻燃纤维，在生产加工过程中无静电产生，可以有效地保证生产环境及相关人员安全。
以PMIA作为基布的单层屋面防水卷材，基布更加平整，其尺寸稳定性强，防水卷材外观平直度好，在面层和底层的保护下，卷材具有更好的结构稳定性、耐热性和阻燃性，单层屋面防水卷材长期暴露使用的寿命较高。
本发明的单层屋面防水卷材具有优异的拉伸强度和抗撕裂性能，具有很好的抗风揭能力，与传统机械固定工艺相比，在幅宽不变的前提下，可以减少机械固定穿钉密度，降低施工工作量，提高工作效率。本发明的单层屋面防水卷材适用于各种防水工程，尤其适用于沿海城市、台风多发区域及北部风力较大城市的屋面防水工程。
附图说明
图1为本发明的实施例2的单层屋面防水卷材结构示意图；
其中，附图标记为：1、基布；2、面层；3、底层。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
实施例1：
本实施例提供一种单层屋面防水卷材，包括面层、底层以及面层与底层之间的基布，所述基布包括经编芳纶纤维网格布，所述面层和底层的原料包括聚合物树脂与助剂。
本实施例的单层屋面防水卷材中，基布包括经编芳纶纤维网格布，其中，芳纶纤维抗冲击强度高，耐热性好，属于阻燃纤维，在生 产加工过程中无静电产生，可以有效地保证生产环境及相关人员安全。
以经编芳纶纤维网格布作为基布的单层屋面防水卷材，基布更加平整，其尺寸稳定性强，防水卷材外观平直度好，在面层和底层的保护下，卷材具有更好的结构稳定性、耐热性和阻燃性，单层屋面防水卷材长期暴露使用的寿命较高。
本发明的单层屋面防水卷材具有优异的拉伸强度和抗撕裂性能，具有很好的抗风揭能力，与传统机械固定工艺相比，在幅宽不变的前提下，可以减少机械固定穿钉密度，降低施工工作量，提高工作效率。本发明的单层屋面防水卷材适用于各种防水工程，尤其适用于沿海城市、台风多发区域及北部风力较大城市的屋面防水工程。
实施例2：
本实施例提供一种单层屋面防水卷材，如图1所示，包括面层、底层以及面层与底层之间的基布，所述基布为经编间位芳纶纤维(PMIA)网格布。单层屋面防水卷材总厚度为1.5mm，所述面层厚度为0.6mm，所述底层厚度为0.7mm，所述基布厚度为0.2mm。
基布的经纱细度为1200D，纬纱细度为1200D，组织密度为：经线9根/cm，纬线9根/cm。
底层原料的重量份数为：全聚合TPO树脂70份，抗氧剂(抗氧剂168)0.25份，光稳定剂(受阻胺类复合光稳定剂)0.25份，颜料(二氧化钛和色母粒)4.5份，填料(碳酸钙)27份，阻燃剂(氢氧化镁)8份。
面层原料的重量份数为：全聚合TPO树脂70份，抗氧剂(抗氧剂1010)0.25份，光稳定剂(受阻胺类复合光稳定剂)0.25份，颜料(二氧化钛和色母粒)4.5份，填料(碳酸钙)27份，阻燃剂(氢氧化镁)8份。
具体包括以下步骤：
将全聚合TPO树脂与助剂混合后经造粒机造粒，得到底层粒料和面层粒料；
将底层粒料挤出至三辊压光机与基布热压复合为底层并冷却；
将面层粒料挤出至三辊压光机与基布热压复合为面层，并冷却得到单层屋面防水卷材。
实施例3：
本实施例提供一种单层屋面防水卷材，其制备方法与实施例2类似，其与实施例2的区别在于：
单层屋面防水卷材总厚度为1.5mm，其中面层为0.6mm，底层为0.7mm，基布为0.2mm。
基布的经纱细度为800D，纬纱细度为800D，组织密度为：经线7根/cm，纬线7根/cm。
对实施例2、实施例3的单层屋面防水卷材产品进行性能检测。根据GB27789-2011《热塑性聚烯烃(TPO)防水卷材》标准要求中相应测试方法对产品的拉伸性能，撕裂强度进行测试。根据美国ANSI/FM4474-2004进行抗风揭能力测试。测试结果见表1。
从表1中可以看出，本发明的高抗风揭单层屋面防水卷材，综合性能优异，各项性能均高于GB27789-2011相应性能指标，可以很好地满足沿海，山区等恶劣气候地区以及国家重点项目等屋面工程的需要。
表1实施例2，实施例3的性能测试结果
Figure PCTCN2015092674-appb-000001
实施例4：
本实施例提供一种单层屋面防水卷材，其制备方法与实施例2类似，其与实施例2的区别在于：
单层屋面防水卷材总厚度为1.20mm，所述面层厚度为0.45mm，所述底层厚度为0.45mm，所述基布厚度为0.3mm。
基布的经纱细度为500D，纬纱细度为500D，组织密度为：经线5根/cm，纬线10根/cm。
所述底层原料的重量份数为：聚合物树脂60份，抗氧剂0.1份，光稳定剂，0.1份，颜料1份，填料30份，阻燃剂10份；
所述面层原料的重量份数为：聚合物树脂60份，抗氧剂0.1份，光稳定剂，0.1份，颜料2份，填料30份，阻燃剂10份。
实施例5：
本实施例提供一种单层屋面防水卷材，其制备方法与实施例2类似，其与实施例2的区别在于：
单层屋面防水卷材总厚度为2.00mm，所述面层厚度为0.8mm，所述底层厚度为0.8mm，所述基布厚度为0.4mm。
基布的经纱细度为2000D，纬纱细度为2000D，组织密度为：经线20根/cm，纬线15根/cm。
所述底层原料的重量份数为：聚合物树脂80份，抗氧剂1份，光稳定剂，1份，颜料8份，填料15份，阻燃剂5份；
所述面层原料的重量份数为：聚合物树脂80份，抗氧剂1份，光稳定剂，1份，颜料8份，填料15份，阻燃剂5份。
实施例6、7：
本实施例提供一种单层屋面防水卷材，其制备方法与实施例2类似，其与实施例2的区别在于：
聚合物树脂分别为：三元乙丙橡胶、聚氯乙烯。
实施例8：
本实施例提供一种单层屋面防水卷材，其制备方法与实施例2类似，其与实施例2的区别在于：基布为经编对位芳纶(PPTA聚对苯二甲酰对苯二胺)纤维网格布。
经测试，实施例4-8的单层屋面防水卷材的性能与实施例2的单层屋面防水卷材的性能接近。
显然，上述各实施例的具体实施方式还可进行许多变化；例如：面层或底层的材料可以根据实际情况进行选择，具体的，可以改变原料中助剂的种类或重量份数等以制备出不同的面层或底层。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (9)

  1. 一种单层屋面防水卷材，其特征在于，包括面层、底层以及面层与底层之间的基布，所述基布包括经编芳纶纤维网格布，所述面层和底层的原料包括聚合物树脂与助剂。
  2. 根据权利要求1所述的单层屋面防水卷材，其特征在于，所述基布为经编间位芳纶纤维网格布。
  3. 根据权利要求1所述的单层屋面防水卷材，其特征在于，所述单层屋面防水卷材总厚度为1.00～2.00mm，所述面层厚度为0.45～0.8mm，所述底层厚度为0.45～0.8mm，所述基布厚度为0.1～0.4mm。
  4. 根据权利要求1所述的单层屋面防水卷材，其特征在于，所述经编芳纶纤维网格布的经纱细度500D～2000D，纬纱细度500D～2000D；
    所述经编芳纶纤维网格布的组织密度为：经线密度为5～20根/cm，纬线密度为5～20根/cm。
  5. 根据权利要求4所述的单层屋面防水卷材，其特征在于，所述经编芳纶纤维网格布的经纱细度为1200D，纬纱细度为1200D；
    所述经编芳纶纤维网格布的组织密度为：经线密度为9根/cm，纬线密度为9根/cm。
  6. 根据权利要求1所述的单层屋面防水卷材，其特征在于，所述聚合物树脂包括三元乙丙橡胶、聚氯乙烯、热塑性聚烯烃中的任意一种或者几种的混合物。
  7. 根据权利要求1所述的单层屋面防水卷材，其特征在于，所述助剂包括抗氧剂，光稳定剂，颜料，填料，阻燃剂中的任意一种或 几种的混合物。
  8. 根据权利要求7所述的单层屋面防水卷材，其特征在于，
    所述底层原料的重量份数为：聚合物树脂50～80份，抗氧剂0.1～1份，光稳定剂，0.1～1份，颜料0～8份，填料10～40份，阻燃剂0～20份；
    所述面层原料的重量份数为：聚合物树脂50～80份，抗氧剂0.1～1份，光稳定剂，0.1～1份，颜料0～8份，填料10～40份，阻燃剂0～20份。
  9. 一种单层屋面防水卷材的制备方法，其特征在于，具体包括以下步骤：
    将包括聚合物树脂与助剂的原料混合后造粒，得到底层粒料和面层粒料；
    将底层粒料挤出与基布热压复合为底层并冷却，所述基布包括经编芳纶纤维网格布；
    将面层粒料挤出至三辊压光机与基布热压复合为面层，并冷却得到单层屋面防水卷材。
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