WO2021258517A1 - 防水卷材颗粒及其制备方法和应用 - Google Patents

防水卷材颗粒及其制备方法和应用 Download PDF

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WO2021258517A1
WO2021258517A1 PCT/CN2020/108163 CN2020108163W WO2021258517A1 WO 2021258517 A1 WO2021258517 A1 WO 2021258517A1 CN 2020108163 W CN2020108163 W CN 2020108163W WO 2021258517 A1 WO2021258517 A1 WO 2021258517A1
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parts
produced
waterproof membrane
functional masterbatch
light stabilizer
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PCT/CN2020/108163
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English (en)
French (fr)
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邓之俊
章柏松
陆威
袁宝
张坤
吴万昌
吴平峰
李庆琦
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安徽滁州德威新材料有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/26—Elastomers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone

Definitions

  • the invention relates to a waterproof coiled material particle and a preparation method thereof, and belongs to the technical field of composition.
  • Waterproof membrane is a commonly used building material in construction facilities. With the development of urbanization, various buildings have higher and higher requirements for waterproof membrane.
  • Traditional waterproofing membranes are mainly based on ordinary thermoplastic polyolefin and polyvinyl chloride. Although these materials have certain price advantages, they are easy to age, degrade and volatilize harmful gases to the human body during long-term use, especially when used as waterproofing membranes. It is more prone to degradation when exposed to specific environmental conditions such as ultraviolet radiation and high temperature.
  • the waterproofing membrane comes into contact with contaminated acid rainwater, the service life and aging performance of the waterproofing membrane will also be reduced.
  • an object of the present invention is to provide a waterproof membrane particle with good UV resistance, superior weather resistance, stable color, and easy extrusion processing.
  • Another object of the present invention is to provide a method for preparing the above-mentioned waterproof coiled material particles.
  • the present invention first provides a kind of waterproof roll material particles, the waterproof roll material particles are mixed and granulated or mixed and blended from the A component and the B component in a weight ratio of 7:1-4.5:1 It is prepared by extrusion, where component A is TPO resin and component B is functional masterbatch;
  • the functional masterbatch includes the following components in parts by weight:
  • the waterproof membrane particles formed by compounding the above-mentioned specific TPO and functional masterbatch of the present invention have superior aging resistance, weather resistance, and strong chemical resistance.
  • the EVA resin used is 28EVA resin, so that the waterproof membrane particles have good high and low temperature resistance.
  • the light stabilizer used is the ultraviolet absorber LA-32 produced by ADK company and the hindered amine light stabilizer LA-402AF; specifically, the light stabilizer used is produced by Japan ADK company UV absorber LA-32 and hindered amine light stabilizer LA-402AF are compounded in a weight ratio of 1:1.5-1:2.5.
  • the antioxidant used is hindered phenol AO-60 and phosphite HP-10 produced by ADK; specifically, the antioxidant is hindered phenol AO-60 produced by ADK. It is compounded with phosphite HP-10 in a weight ratio of 1:1-1:1.5.
  • the specific compounded antioxidant can make the waterproof membrane particles have both short-term and long-term aging resistance.
  • the processing aids used are NA-11 and AX-71 produced by ADK Company.
  • the titanium dioxide used is rutile 2105 produced by DuPont.
  • the UV resistance of waterproof membrane particles can be enhanced, which can meet the weather resistance test of 2500-5500 hours.
  • fluororubber is used as an external lubricant.
  • the filler is selected from the 5000 mesh superfine heavy calcium VS-925 produced by Dongguan Wuquan.
  • the functional masterbatch may also contain a lubricant, wherein the added amount of the lubricant is 0.5 parts by weight to 0.7 parts by weight; specifically, the lubricant is NA-11 produced by ADK Company and AX-71.
  • the TPO resin used is selected from CA10A produced by BASF.
  • the present invention also provides a preparation method of the above-mentioned waterproof coiled material particles, the preparation method comprising:
  • the functional masterbatch and the TPO resin are mixed uniformly and then fed into the twin-screw extrusion granulation to obtain the waterproof coiled material particles.
  • the temperature of each section of the body of the double-roll mixer is: 110°C-120°C, 120°C-130°C, 130°C-140°C, 140°C -150°C, 140°C-150°C, 150°C-160°C, the head temperature is 155°C-165°C, the main engine speed is 25-35 revolutions/min, and the feeding speed is 35-40 revolutions/min.
  • the body temperature is 110°C-170°C
  • the machine head temperature is 165°C-175°C
  • the main engine speed is 45-55 rpm
  • the feeding speed is It is 60-70 rpm.
  • the above-mentioned waterproof coiled material particles of the present invention can be prepared to form a waterproof coiled material.
  • the present invention adopts A component TPO resin, functional masterbatch B is compounded and granulated or blended and extruded to form waterproof coiled material particles; the functional substances in the TPO waterproof coiled material are made into a unified B component masterbatch.
  • different functional masterbatch B components can be blended and extruded according to the use situation of TPO coil. Because roof coils are exposed to sunlight, wind and rain for a long time, the proportion of functional masterbatch can be increased to meet the sun resistance of 5500. Hourly test; when used indoors and subways and other occasions, the demand for light is low, and the proportion of functional masterbatch can be reduced.
  • the waterproof membrane particles of the present invention can adjust the compounding ratio within a specific range.
  • the compound light stabilizer competes with the chromophore of the TPO resin and can absorb ultraviolet rays before the TPO resin to prevent the degradation of the TPO resin. It has a high degree of light resistance, and releases the absorbed energy in the form of energy conversion in heat or other ways to protect the TPO resin. At the same time, this type of light stabilizer also has little effect on the color of the polyolefin waterproof membrane particles. Features such as volatility and good compatibility. Therefore, the combination of compound light stabilizer and DuPont titanium dioxide can make TPO waterproof membrane particles have good weather resistance and chemical resistance, and the weather resistance can meet the test of 2500-5500 hours.
  • the waterproof coiled material particles obtained by the preparation method of the present invention have superior aging resistance, weather resistance, and strong chemical corrosion resistance.
  • This embodiment provides a kind of TPO/functional masterbatch composite waterproofing membrane particles for construction.
  • a formula for the B-component functional masterbatch is provided, which includes the following components by weight:
  • the light stabilizer used is the ultraviolet absorber LA-32 of Japan ADK company and the hindered amine light stabilizer LA-402AF are compounded according to the weight ratio of 1:2;
  • the antioxidant is ADK company hindered phenol AO-60 and sub Phosphate HP-10 is compounded according to the weight ratio of 1:1.2;
  • the processing aids are NA-11 and AX-71 of ADK Company.
  • the TPO resin is selected from BASF Corporation CA10A.
  • the polyethylene resin is linear low-density polyethylene (LLDPE) with a melt index of 0.8-2.5g/10min, Zhenhai Refining & Chemical DFDA-7042.
  • Ethylene-vinyl acetate copolymer resin (EVA), with a content of 28EVA, has good high and low temperature resistance.
  • the titanium dioxide is Rutile 2105 from DuPont.
  • the antioxidant is ADK's hindered phenol AO-60 and phosphite HP-10, the weight ratio of the two is 1:1.2.
  • the filler is 5000 mesh superfine heavy calcium VS-925 selected from Dongguan Wuquan.
  • the preparation method of the TPO/functional masterbatch composite waterproof membrane particles for construction of this embodiment is as follows:
  • the temperature of each section of the body of the twin-roll mixer is successively It is: 110°C-120°C, 120°C-130°C, 130°C-140°C, 140°C-150°C, 140°C-150°C, 150°C-160°C, the head temperature is 155°C-165°C, the main engine speed It is 25-35 revolutions/min, and the feeding speed is 35-40 revolutions/min;
  • Examples 1-5 and Comparative Examples 1-3 respectively provide TPO/functional masterbatch waterproof membrane particles for construction, and the ratio content and test performance are shown in Table 1.
  • Example 1 to Example 5 and Comparative Example 1 to Comparative Example 3 that, within a certain range, as the proportion of functional masterbatch increases, the tensile strength of TPO waterproof membrane particles decreases, which is mainly because the functional masterbatch
  • the pellets contain a certain amount of EVA resin, calcium carbonate, and ultraviolet absorbers that reduce mechanical properties.
  • the EVA resin contains vinyl acetate monomer.
  • the low crystallinity of EVA results in softening of the material and low tensile strength.
  • the vinyl acetate monomer has polarity, and it has good compatibility with fillers, which improves the compatibility of TPO waterproof membrane particles with fillers.
  • Example 1-Example 5 Comparative Example 1-Comparative Example 3 can be seen that, within a certain range, in the artificial weathering test of TPO/functional masterbatch waterproof membrane particles, the retention of tensile strength and elongation at break The rate retention rate passed, and it was found in the experiment that the artificial weather accelerated aging ( ⁇ 2500h) time. With the increase of the proportion of functional masterbatch, the artificial weather aging of TPO anti-coil particles can reach ⁇ 5500 time, but The mechanical properties of TPO are affected to a certain extent, mainly from the content of EVA in the functional masterbatch, calcium carbonate and the ratio of ultraviolet agents.
  • the TPO/functional masterbatch waterproof membrane particles for construction prepared by the present invention have good aging resistance, weather resistance and chemical resistance, as well as good mechanical properties and low-temperature bending properties. , Can meet the use of thermoplastic polyolefin waterproofing membranes.
  • the ratio of TPO/functional masterbatch can be adjusted according to customer requirements. According to customers' requirements for different solar aging resistance, the ratio of TPO/functional masterbatch is 7:1-4.5: 1 is the most excellent, with good economic and social benefits.
  • This embodiment provides a kind of waterproof membrane particles, which is different from embodiment 1 only in that 0.6 parts by weight of lubricant is added to the raw material composition, and the lubricant is NA-11 and AX-71 produced by ADK Company. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
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Abstract

一种防水卷材颗粒及其制备方法和应用。该防水卷材颗粒由重量比为7:1-4.5:1的A组分和B组份混合造粒或混合共混挤出制备而成；其中，A组份为TPO树脂，B组份为功能母粒。所述防水卷材颗粒具有耐紫外性能好，耐候性优越，颜色稳定，易挤出加工的优点。

Description

防水卷材颗粒及其制备方法和应用 技术领域
本发明涉及一种防水卷材颗粒及其制备方法，属于组合物技术领域。
背景技术
防水卷材是建筑设施中常用的一种建筑材料，随着城市化发展，各类建筑物对防水卷材的要求也越来越高。传统的防水卷材主要以普通热塑性聚烯烃和聚氯乙烯为基材，这些材质虽然具有一定的价格优势，但是在长期使用中易老化、降解及挥发对人体有害气体，尤其是当防水卷材暴露于紫外照射、高温等特定的环境条件时，更易发生降解。此外，由于空气中酸性污染物的增多，防水卷材在接触受污染酸性雨水时，也会导致防水卷材寿命和老化性能降低。
建筑防水卷材的质量与使用寿命会直接影响建筑设施的质量，要保证建筑防水工程的质量，除设计施工外，还要选择合适的防水卷材。
发明内容
为了解决上述技术问题，本发明的一个目的在于提供一种具有耐紫外性能好，耐候性优越，颜色稳定，易挤出加工的防水卷材颗粒。
本发明的又一目的在于提供一种上述防水卷材颗粒的制备方法。
为了实现上述任一目的，本发明首先提供了一种防水卷材颗粒，该防水卷材颗粒由重量比为7:1-4.5:1的A组分和B组份混合造粒或混合共混挤出制备而成，其中，A组份为TPO树脂，B组份为功能母粒；
功能母粒包括如下重量份数的组分：
聚乙烯树脂50份，EVA树脂10份-20份，光稳定剂1.5-2.5份，钛白粉3.0-4.5份，抗氧剂1.5-2.0份，填充剂100-120份，氟橡胶2.0-3.0份，加工助剂0.5-0.7份。
本发明的通过上述特定的TPO与功能母粒复配形成的防水卷材颗的耐老化、耐候性优越，耐化学性强。
在本发明的一具体实施方式中，采用的EVA树脂为28EVA树脂，使得防水卷材颗粒兼具良好的耐高低温性能。
在本发明的一具体实施方式中，采用的光稳定剂为ADK公司生产的紫外线吸收剂LA-32 和受阻胺光稳定剂LA-402AF；具体地，采用的光稳定剂由日本ADK公司生产的紫外线吸收剂LA-32和受阻胺光稳定剂LA-402AF以1：1.5-1:2.5的重量比复配而成。
在本发明的一具体实施方式中，采用的抗氧剂由ADK公司生产的受阻酚AO-60和亚磷酸酯类HP-10；具体地，抗氧剂由ADK公司生产的受阻酚AO-60和亚磷酸酯类HP-10以1:1-1:1.5的重量比复配而成。特定的复配而成的抗氧剂可以使防水卷材颗粒兼具短期和长期耐老化性能。
在本发明的一具体实施方式中，采用的加工助剂为ADK公司生产的NA-11和AX-71。
在本发明的一具体实施方式中，采用的钛白粉为杜邦公司生产的金红石型2105。通过特定的光稳定剂与钛白粉的协同，能够增强防水卷材颗粒的耐紫外线性能，可满足2500-5500小时耐候测试。
在本发明的一具体实施方式中，氟橡胶作为外润滑剂。
在本发明的一具体实施方式中，填充剂为选自东莞五全生产的5000目超细重钙VS-925。
在本发明的一具体实施方式中，功能母粒中还可以含有润滑剂，其中，润滑剂的添加量为0.5重量份-0.7重量份；具体地，润滑剂为ADK公司生产的NA-11和AX-71。
在本发明的一具体实施方式中，采用的TPO树脂为选自巴斯夫公司生产的CA10A。
本发明又提供了一种上述防水卷材颗粒的制备方法，该制备方法包括：
将聚乙烯树脂粉、EVA树脂、光稳定剂、抗氧剂、钛白粉、氟橡胶、加工助剂和填充剂低速(30Hz)混合3-5分钟，得到第一混合物料；当含有润滑剂时，也在这一步中添加；
将第一混合物料投入双辊混炼机混炼，再进入双螺杆挤出机进行挤出拉条造粒，得到功能母粒；
将功能母粒和TPO树脂混合均匀后投入双螺杆挤出造粒，得到防水卷材颗粒。
在本发明的一具体实施方式中，制备功能母料时，双辊混炼机的机身各段温度依次为：110℃-120℃、120℃-130℃、130℃-140℃、140℃-150℃、140℃-150℃、150℃-160℃，机头温度为155℃-165℃，主机转速为25-35转/分钟，喂料转速为35-40转/分钟。
在本发明的一具体实施方式中，制备防水卷材颗粒时，机身温度为110℃-170℃，机头温度为165℃-175℃，主机转速为45-55转/分，喂料转速为60-70转/分。
本发明的上述防水卷材颗粒，可以制备形成防水卷材。
本发明采用A组份TPO树脂，功能母粒B部分复配混合造粒或共混挤出形成防水卷材颗粒；将TPO防水卷材中的功能性物质做成统一B组份母粒，在使用时可根据TPO卷材使用场合添加不同的功能母粒B组份共混挤出，屋顶类卷材因长时间接受日光，风雨等特殊环境，可增加功能母粒的比例，满足耐日光5500小时测试；当使用在室内及地铁等场合对光线 的需求较低，可降低功能母粒的比例。
本发明的防水卷材颗粒可在特定范围内自行调整复配比例，复配光稳定剂通过与TPO树脂的发色团竞争，可先于TPO树脂吸收紫外线从而阻止TPO树脂降解，而其自身又具有高度的耐光性，以能量转换形式将吸收的能量以热能或其他方式释放，起到保护TPO树脂的作用，同时，该类光稳定剂还具有对聚烯烃防水卷材颗粒颜色影响小、低挥发性和良好的相容性等特点。因此，复配光稳定剂与杜邦钛白粉的配合使用可使TPO防水卷材颗粒具有良好的耐候性能和耐化学性能，耐候可满足2500-5500小时测试通过。
通过本发明的制备方法得到的防水卷材颗粒的耐老化性、耐候性优越，而且具有很强的耐化学腐蚀性。
具体实施方式
为了对本发明的技术特征、目的和有益效果有更加清楚的理解，现对本发明的技术方案进行以下详细说明，但不能理解为对本发明的可实施范围的限定。
实施例
本实施例提供了一种建筑用TPO/功能母粒复合防水卷材颗粒，首先提供B组份功能母粒的配方，其包括如下重量份数的组分：
Figure PCTCN2020108163-appb-000001
其中，采用的光稳定剂为日本ADK公司紫外线吸收剂LA-32和受阻胺光稳定剂LA-402AF按照1：2重量比复配而成；抗氧剂为ADK公司受阻酚AO-60和亚磷酸酯类HP-10按照1:1.2重量比复配而成；加工助剂为ADK公司的NA-11和AX-71。
TPO树脂为选自巴斯夫公司CA10A。
聚乙烯树脂为线性低密度聚乙烯(LLDPE)，其熔融指数为0.8-2.5g/10min，镇海炼化DFDA-7042。
乙烯-醋酸乙烯共聚物树脂(EVA)、含量为28EVA，兼具良好的耐高低温性能。
钛白粉为杜邦公司的金红石型2105。
抗氧剂为ADK公司的受阻酚AO-60和亚磷酸酯类HP-10，二者重量比为1:1.2。
填充剂为选自东莞五全的5000目超细重钙VS-925。
本实施例的建筑用TPO/功能母粒复合防水卷材颗粒的制备方法如下：
(a)称取配方量的低密度聚乙烯树脂粉、EVA树脂粉、稳定剂、抗氧剂、钛白粉、氟橡胶、加工助剂和填充剂30HZz下混合搅拌3-5分钟；
(b)投入双辊混炼机混炼，再进入双螺杆挤出机进行挤出拉条造粒，即得B组份功能母粒；所述双辊混炼机的机身各段温度依次为：110℃-120℃、120℃-130℃、130℃-140℃、140℃-150℃、140℃-150℃、150℃-160℃，机头温度为155℃-165℃，主机转速为25-35转/分钟，喂料转速为35-40转/分钟；
(c)将B组份功能母粒和TPO树脂按配方比例混合均匀后投入双螺杆挤出造粒，即得建筑用TPO/功能母粒防水卷材颗粒，机身温度为110℃～170℃，机头温度165℃-175℃，主机转速为45-55转/分，喂料转速为60-70转/分。
下述实施例1-实施例5中所使用的B组份的功能母粒的配方是相同的，区别在实施例1-实施例5中TPO树脂和功能母粒的配比不相同，对比例1-对比例3的制备方法均与实施例1-实施例5相同，区别为采用的TPO树脂和功能母粒的配方比例超出本发明方案给出的比例范围，具体比例见下表：
实施例1-5、对比例1-3分别提供一种建筑用TPO/功能母粒防水卷材颗粒，配比含量及测试性能见表1所示。
表1 实施例1-5及对比例1-3的物理性能测试结果(GB 27789-2011)
Figure PCTCN2020108163-appb-000002
Figure PCTCN2020108163-appb-000003
Figure PCTCN2020108163-appb-000004
实施例1-实施例5、对比例1-对比例3能够看出，在一定范围内，随着功能母粒比例的增加，TPO防水卷材颗粒的拉伸强度降低，其主要是因为功能母粒中含有一定量的EVA树脂和碳酸钙以及紫外线吸收剂等降低机械性能物质，EVA树脂中包含醋酸乙烯单体，EVA的结晶度低，导致材料变软，拉伸强度变低，但EVA中的醋酸乙烯单体具有极性，其与填充剂具有较好的相容性，改善了TPO防水卷材颗粒与填充剂的相容。
实施例1-实施例5、对比例1-对比例3能够看出，在一定范围内，TPO/功能母粒防水卷材颗粒的人工气候老化试验测试中，拉伸强度保留率以及断裂伸长率保留率均通过，且在实验过程中发现，人工气候加速老化(≥2500h)的时长，随着功能母粒比例的增加，TPO防卷材颗粒的人工气候老化可达到≥5500的时长，但是TPO的机械性能受到一定的影响，主要来自于功能母粒中EVA的含量，碳酸钙以及紫外线剂的比例。
根据表1结果可知，本发明所制备的一种建筑用TPO/功能母粒防水卷材颗粒，具有良好的耐老化性能、耐候性能和耐化学性能，同时具有良好的力学性能、低温弯折性，可满足热塑性聚烯烃防水卷材的使用，可根据客户要求适当调整TPO/功能母粒的比例，根据客户满足不同的耐日光老化要求，TPO/功能母粒的比例为7:1-4.5:1为最优异，具有良好的经济效益和社会效益。
实施例6
本实施例提供了一种防水卷材颗粒，其与实施例1的区别仅在于，在原料组成中还添加了0.6重量份的润滑剂，润滑剂为ADK公司生产的NA-11和AX-71。

Claims (10)

  1. 一种防水卷材颗粒，该防水卷材颗粒由重量比为7:1-4.5:1的A组分和B组份混合造粒或混合共混挤出制备而成，其中，A组份为TPO树脂，B组份为功能母粒；
    功能母粒包括如下重量份数的组分：
    聚乙烯树脂50份，EVA树脂10份-20份，光稳定剂1.5-2.5份，钛白粉3.0-4.5份，抗氧剂1.5-2.0份，填充剂100-120份，氟橡胶2.0-3.0份，加工助剂0.5-0.7份。
  2. 根据权利要求1所述的防水卷材颗粒，其中，所述光稳定剂由日本ADK公司生产的紫外线吸收剂LA-32和受阻胺光稳定剂LA-402AF；
    优选地，所述光稳定剂由日本ADK公司生产的紫外线吸收剂LA-32和受阻胺光稳定剂LA-402AF以1：1.5-1:2.5的重量比复配而成。
  3. 根据权利要求1所述的防水卷材颗粒，其中，所述抗氧剂由ADK公司生产的受阻酚AO-60和亚磷酸酯类HP-10；
    优选地，所述抗氧剂由ADK公司生产的受阻酚AO-60和亚磷酸酯类HP-10以1:1-1:1.5的重量比复配而成。
  4. 根据权利要求1所述的防水卷材颗粒，其中，所述TPO树脂为巴斯夫公司生产的CA10A。
  5. 根据权利要求1所述的防水卷材颗粒，其中，所述钛白粉为杜邦公司生产的金红石型2105。
  6. 根据权利要求1所述的防水卷材颗粒，其中，所述加工助剂为ADK公司生产的NA-11和AX-71；
    优选地，所述填充剂为选自东莞五全生产的5000目超细重钙。
  7. 根据权利要求1所述的防水卷材颗粒，其中，所述功能母粒中还含有润滑剂0.5-0.7重量份；
    优选地，润滑剂为ADK公司生产的NA-11和AX-71。
  8. 权利要求1-7的防水卷材颗粒的制备方法，该制备方法包括：
    将聚乙烯树脂粉、EVA树脂、光稳定剂、抗氧剂、钛白粉、氟橡胶、加工助剂和填充剂30Hz速度下混合3-5分钟，得到第一混合物料；
    将第一混合物料投入双辊混炼机混炼，再进入双螺杆挤出机进行挤出拉条造粒，得到功能母粒；
    将功能母粒和TPO树脂混合均匀后投入双螺杆挤出造粒，得到防水卷材颗粒。
  9. 根据权利要求8所述的制备方法，其中，制备功能母料时，双辊混炼机的机身各段温度依次为：110℃-120℃、120℃-130℃、130℃-140℃、140℃-150℃、140℃-150℃、150℃-160℃， 机头温度为155℃-165℃，主机转速为25-35转/分钟，喂料转速为35-40转/分钟；
    优选地，制备防水卷材颗粒时，机身温度为110℃-170℃，机头温度为165℃-175℃，主机转速为45-55转/分，喂料转速为60-70转/分。
  10. 一种防水卷材，该防水卷材时通过权利要求1-7任一项所述的防水卷材颗粒制备而成的。
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