WO2019061670A1 - 一种塑料型材及其加工工艺 - Google Patents

一种塑料型材及其加工工艺 Download PDF

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WO2019061670A1
WO2019061670A1 PCT/CN2017/108870 CN2017108870W WO2019061670A1 WO 2019061670 A1 WO2019061670 A1 WO 2019061670A1 CN 2017108870 W CN2017108870 W CN 2017108870W WO 2019061670 A1 WO2019061670 A1 WO 2019061670A1
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parts
antibacterial
plastic profile
polyvinyl chloride
chloride resin
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PCT/CN2017/108870
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English (en)
French (fr)
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陈健
杨文乾
张建光
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苏州富通高新材料科技股份有限公司
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Publication of WO2019061670A1 publication Critical patent/WO2019061670A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0806—Silver
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Definitions

  • the invention relates to the technical field of plastic profiles, in particular to a plastic profile and a processing technique thereof.
  • Polyvinyl chloride is a thermoplastic resin obtained by polymerizing polyethylene under the action of an initiator.
  • Industrial production of PVC molecular weight is generally in the range of 50,000 to 120,000, with greater dispersion, molecular weight increases with the decrease of polymerization temperature, but the stability to light and heat is poor, above 100 ° C or after a long period of sunshine exposure It will decompose to produce hydrogen chloride, and further autocatalytic decomposition will cause discoloration, and the physical and mechanical properties will also drop rapidly. In practical applications, additives must be added to improve various aspects of performance.
  • PVC plastic sheet has become a popular new light body decoration material in the world. It is a popular product. Since entering the Chinese market, PVC plastic sheet has been widely recognized in large and medium-sized cities in China and is widely used.
  • the existing PVC plastic profiled sheet has the following defects: 1. High cost; 2. Poor thermal stability, hard and brittle at low temperature, easy to soften and relax at high temperature; 3. Poor processing property, impact resistance and aging resistance 3, in the production process release harmful substances, produce harmful waste, the finished product will release dioxin acid gas at high temperature, its additives gradually volatilize during use, pollute the air.
  • the object of the present invention is to provide a plastic profile and a processing technique thereof, which have low cost, good thermal stability, increased rigidity, improved plasticization quality, improved appearance, smooth profile and weather resistance. It has good sex, toughness and uniformity, and has antibacterial and antibacterial effects. It is suitable for aseptic use.
  • a plastic profile comprising, by weight components, 100 to 120 parts of a polyvinyl chloride resin, 2 to 3 parts of an organotin carboxylate, and a polyacrylate. 1 to 2 parts of the resin, 8 to 10 parts of the chlorinated polyethylene, 5 to 10 parts of the active calcium carbonate, 4 to 6 parts of the rutile type titanium white, 0.5 to 1 part of the polyethylene wax, and 0.5 to 1 part of the antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm and having a cotton ball shape.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are first mixed in a hot mixing pot and then cooled in a cold mixing tank, and the mixing time is 7-8 minutes, wherein the temperature during hot mixing is controlled at 110-130. °C, the cooling water temperature during cold mixing is controlled at 13 ⁇ 15 °C.
  • a plastic profile comprising: 100 parts of a polyvinyl chloride resin, 2 parts of an organotin carboxylate, 1 part of a polyacrylate resin, 8 parts of a chlorinated polyethylene, 5 parts of an active calcium carbonate, and a rutile type. 4 parts of titanium dioxide, 0.5 part of polyethylene wax, and 0.5 part of antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm and having a cotton ball shape.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are firstly mixed in a hot mixing pot and then cooled in a cold mixing tank, and the mixing time is 7 minutes, wherein the temperature during hot mixing is controlled at 110 ° C, and the cooling water is cooled during cold mixing.
  • the temperature is controlled at 13 °C.
  • a plastic profile comprising, by weight component, 105 parts of a polyvinyl chloride resin, 2.25 parts of an organotin carboxylate, 1.25 parts of a polyacrylate resin, 8.5 parts of a chlorinated polyethylene, 6 parts of an active calcium carbonate, and a rutile type. 4.5 parts of titanium dioxide, 0.6 parts of polyethylene wax, and 0.6 parts of antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm and having a cotton ball shape.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are first mixed in a hot mixing pot and then cooled in a cold mixing tank.
  • the mixing time was 7 minutes, in which the temperature during hot mixing was controlled at 115 ° C, and the temperature of the cooling water during cold mixing was controlled at 13 ° C.
  • a plastic profile comprising, by weight component, 110 parts of polyvinyl chloride resin, 2.5 parts of organotin carboxylate, 1.5 parts of polyacrylate resin, 9 parts of chlorinated polyethylene, 7 parts of activated calcium carbonate, rutile type 5 parts of titanium dioxide, 0.7 parts of polyethylene wax, and 0.7 parts of antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm and having a cotton ball shape.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are first mixed in the hot mixing pot and then cooled in the cold mixing tank, and the mixing time is 7.5 minutes, wherein the temperature during the hot mixing is controlled at 120 ° C, and the cooling water is mixed during cold mixing.
  • the temperature is controlled at 14 °C.
  • a plastic profile comprising, by weight component, 115 parts of polyvinyl chloride resin, 2.75 parts of organotin carboxylate, 1.75 parts of polyacrylate resin, 9.5 parts of chlorinated polyethylene, 8 parts of activated calcium carbonate, rutile type 5.5 parts of titanium dioxide, 0.9 parts of polyethylene wax, and 0.9 parts of antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm. It is a cotton ball.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are first mixed in a hot mixing pot and then cooled in a cold mixing tank, and the mixing time is 8 minutes, wherein the temperature during the hot mixing is controlled at 125 ° C, and the cooling water is cooled during cold mixing.
  • the temperature is controlled at 15 °C.
  • a plastic profile comprising 120 parts of a polyvinyl chloride resin, 3 parts of an organotin carboxylate, 2 parts of a polyacrylate resin, 10 parts of a chlorinated polyethylene, 10 parts of an active calcium carbonate, and a rutile type. 6 parts of titanium dioxide, 1 part of polyethylene wax, and 1 part of antibacterial antibacterial additive.
  • the polyvinyl chloride resin has a density of 1.35 to 1.45 g/cm 3 and an apparent density of 0.4 to 0.5 g/cm 3 .
  • the polyvinyl chloride resin is a loose polyvinyl chloride resin having a particle diameter of 0.1 to 0.2 mm and having a cotton ball shape.
  • the organotin carboxylate is di-n-octyltin dilaurate.
  • the antibacterial antibacterial additive is a mixture of nano zinc oxide powder and nano silver powder.
  • a processing technique for preparing the plastic profile comprises the following steps:
  • a polyvinyl chloride resin having a polymerization degree of 1200 to 1000 is used in parts by weight, and an organotin carboxylate, a polyacrylate resin, a chlorinated polyethylene, a polyethylene wax, an activated calcium carbonate, and a rutile titanium white are sequentially added. And an antibacterial antibacterial additive is mixed into a mixture;
  • the extruded material is calendered by a calender.
  • the materials are firstly mixed in a hot mixing pot and then cooled in a cold mixing tank, and the mixing time is 8 minutes, wherein the temperature during hot mixing is controlled at 130 ° C, and the cooling water is cooled during cold mixing.
  • the temperature is controlled at 15 °C.
  • the invention has the antibacterial and antibacterial effect, is suitable for use in a sterile place, has low cost, good thermal stability, increases rigidity, improves plasticization quality, improves appearance, and makes the profile smooth, Excellent weather resistance, toughness and uniformity.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种塑料型材及其加工工艺，塑料型材以重量组分计包括：聚氯乙烯树脂100～120份、有机锡羧酸盐2～3份、聚丙烯酸酯类树脂1～2份、氯化聚乙烯8～10份、活性碳酸钙5～10份、金红石型钛白4～6份、聚乙烯蜡0.5～1份、抗菌抑菌添加剂0.5～1份。本发明成本低，热稳定性好，增加了刚性，提高塑化质量，改善外观，使得型材光滑，耐候性、韧性、均匀性好，同时具有抗菌抑菌效果，适用于无菌场所。

Description

一种塑料型材及其加工工艺 技术领域
本发明涉及塑料型材技术领域，尤其涉及了一种塑料型材及其加工工艺。
背景技术
聚氯乙烯，英文简称PVC，是由聚乙烯在引发剂作用下聚合而成的热塑性树脂。工业生产的PVC分子量一般在5万～12万范围内，具有较大的分散性，分子量随聚合温度的降低而增加，但对光和热的稳定性差，在100℃以上或经长时间阳光暴晒，就会分解而产生氯化氢，并进一步自动催化分解引起变色，物理机械性能也迅速下降，在实际应用中必须加入助剂以提高各方面的性能。
PVC塑料板材已经是当今世界上非常流行的一种新型轻体装饰材料，是广受欢迎的产品，PVC塑料板材从进入中国市场以来，已经在国内大中城市得到普遍的认可，使用非常广泛。
现有的PVC塑料异型板材存在以下缺陷：1、成本较高；2、热稳定性不好，低温下变硬脆化，高温下易软化松弛；3、加工性能、耐冲击性、耐老化性差；3、在生产工艺过程中释放有害物质，产生有害废品，成品在高温下会释放二恶英酸性气体，其添加剂在使用过程中逐渐挥发，污染空气。
发明内容
针对现有技术存在的不足，本发明的目的就在于提供了一种塑料型材及其加工工艺，成本低，热稳定性好，增加了刚性，提高塑化质量，改善外观，使得型材光滑，耐候性、韧性、均匀性好，同时具有抗菌抑菌效果，适用于无菌场所。
为了实现上述目的，本发明采用的技术方案是这样的：一种塑料型材，以重量组分计包括：聚氯乙烯树脂100～120份、有机锡羧酸盐2～3份、聚丙烯酸酯类树脂1～2份、氯化聚乙烯8～10份、活性碳酸钙5～10份、金红石型钛白4～6份、聚乙烯蜡0.5～1份、抗菌抑菌添加剂0.5～1份。
作为一种优选方案，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
作为一种优选方案，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
作为一种优选方案，所述有机锡羧酸盐为二月桂酸二正辛基锡。
作为一种优选方案，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置1～2天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为150～200℃；
(4)将挤出后的物料采用压延机进行压延成型。
作为一种优选方案，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为7～8分钟，其中热混时温度控制在110～130℃，冷混时冷却水温度控制在13～15℃。
与现有技术相比，本发明的有益效果：
1、成本低，热稳定性好，增加了刚性；
2、提高塑化质量，改善外观，使得型材光滑，耐候性、韧性、均匀性好；
3、具有抗菌抑菌效果，适用于无菌场所；
4、无毒、粉尘污染小、型材焊接强度高。
具体实施方式
下面结合具体实施例对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1：
一种塑料型材，以重量组分计包括：聚氯乙烯树脂100份、有机锡羧酸盐2份、聚丙烯酸酯类树脂1份、氯化聚乙烯8份、活性碳酸钙5份、金红石型钛白4份、聚乙烯蜡0.5份、抗菌抑菌添加剂0.5份。
具体的，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
具体的，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
具体的，所述有机锡羧酸盐为二月桂酸二正辛基锡。
具体的，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置1天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为150℃；
(4)将挤出后的物料采用压延机进行压延成型。
具体的，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为7分钟，其中热混时温度控制在110℃，冷混时冷却水温度控制在13℃。
实施例2：
一种塑料型材，以重量组分计包括：聚氯乙烯树脂105份、有机锡羧酸盐2.25份、聚丙烯酸酯类树脂1.25份、氯化聚乙烯8.5份、活性碳酸钙6份、金红石型钛白4.5份、聚乙烯蜡0.6份、抗菌抑菌添加剂0.6份。
具体的，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
具体的，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
具体的，所述有机锡羧酸盐为二月桂酸二正辛基锡。
具体的，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置1天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为160℃；
(4)将挤出后的物料采用压延机进行压延成型。
具体的，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷 却，混合时间为7分钟，其中热混时温度控制在115℃，冷混时冷却水温度控制在13℃。
实施例3：
一种塑料型材，以重量组分计包括：聚氯乙烯树脂110份、有机锡羧酸盐2.5份、聚丙烯酸酯类树脂1.5份、氯化聚乙烯9份、活性碳酸钙7份、金红石型钛白5份、聚乙烯蜡0.7份、抗菌抑菌添加剂0.7份。
具体的，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
具体的，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
具体的，所述有机锡羧酸盐为二月桂酸二正辛基锡。
具体的，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置1.5天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为175℃；
(4)将挤出后的物料采用压延机进行压延成型。
具体的，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为7.5分钟，其中热混时温度控制在120℃，冷混时冷却水温度控制在14℃。
实施例4：
一种塑料型材，以重量组分计包括：聚氯乙烯树脂115份、有机锡羧酸盐2.75份、聚丙烯酸酯类树脂1.75份、氯化聚乙烯9.5份、活性碳酸钙8份、金红石型钛白5.5份、聚乙烯蜡0.9份、抗菌抑菌添加剂0.9份。
具体的，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
具体的，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm， 呈棉花球状。
具体的，所述有机锡羧酸盐为二月桂酸二正辛基锡。
具体的，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置2天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为190℃；
(4)将挤出后的物料采用压延机进行压延成型。
具体的，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为8分钟，其中热混时温度控制在125℃，冷混时冷却水温度控制在15℃。
实施例5：
一种塑料型材，以重量组分计包括：聚氯乙烯树脂120份、有机锡羧酸盐3份、聚丙烯酸酯类树脂2份、氯化聚乙烯10份、活性碳酸钙10份、金红石型钛白6份、聚乙烯蜡1份、抗菌抑菌添加剂1份。
具体的，所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
具体的，所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
具体的，所述有机锡羧酸盐为二月桂酸二正辛基锡。
具体的，所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
一种制备所述的塑料型材的加工工艺，包括以下步骤：
(1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
(2)将混合物经过筛分以筛除粗大粒子，然后静置2天进行熟化；
(3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为200℃；
(4)将挤出后的物料采用压延机进行压延成型。
具体的，所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为8分钟，其中热混时温度控制在130℃，冷混时冷却水温度控制在15℃。
对实施例1～5所得的塑料型材进行抗菌效果测定，结果见表1。
表1
Figure PCTCN2017108870-appb-000001
将实施例1～5所得的塑料型材放置在温度为37℃，相对湿度为60％，自然光源的条件下半年，然后进行抗菌效果测定，结果见表2。
表2
Figure PCTCN2017108870-appb-000002
将实施例1～5所得的塑料型材放置在温度为37℃，相对湿度为60％，自然光源的条件下一年，然后进行抗菌效果测定，结果见表3。
表3
Figure PCTCN2017108870-appb-000003
将实施例1～5所得的塑料型材放置在温度为37℃，相对湿度为60％，自然光源的条件下两年，然后进行抗菌效果测定，结果见表4。
表4
Figure PCTCN2017108870-appb-000004
从表1～4中可以看出，本发明具有抗菌抑菌效果，适用于无菌场所，同时具有成本低，热稳定性好，增加了刚性，提高塑化质量，改善外观，使得型材光滑，耐候性、韧性、均匀性好的优点。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。

Claims (7)

  1. 一种塑料型材，其特征在于，以重量组分计包括：聚氯乙烯树脂100～120份、有机锡羧酸盐2～3份、聚丙烯酸酯类树脂1～2份、氯化聚乙烯8～10份、活性碳酸钙5～10份、金红石型钛白4～6份、聚乙烯蜡0.5～1份、抗菌抑菌添加剂0.5～1份。
  2. 根据权利要求1所述的一种塑料型材，其特征在于：所述聚氯乙烯树脂的密度为1.35～1.45g/cm3、表观密度为0.4～0.5g/cm3。
  3. 根据权利要求1或2中任一项所述的一种塑料型材，其特征在于：所述聚氯乙烯树脂为疏松型聚氯乙烯树脂，其粒径为0.1～0.2mm，呈棉花球状。
  4. 根据权利要求1所述的一种塑料型材，其特征在于：所述有机锡羧酸盐为二月桂酸二正辛基锡。
  5. 根据权利要求1所述的一种塑料型材，其特征在于：所述抗菌抑菌添加剂为纳米氧化锌粉与纳米银粉的混合物。
  6. 一种制备权利要求1所述的塑料型材的加工工艺，其特征在于，包括以下步骤：
    (1)按照重量份选用聚合度在1200～1000的聚氯乙烯树脂，依次加入有机锡羧酸盐、聚丙烯酸酯类树脂、氯化聚乙烯、聚乙烯蜡、活性碳酸钙、金红石型钛白、抗菌抑菌添加剂进行混合成混合物；
    (2)将混合物经过筛分以筛除粗大粒子，然后静置1～2天进行熟化；
    (3)将静置后的混合物送入挤出机中进行挤出，挤出机的温度为150～200℃；
    (4)将挤出后的物料采用压延机进行压延成型。
  7. 根据权利要求6所述的一种制备塑料型材的加工工艺，其特征在于：所述步骤(1)中混合时物料先在热混锅内热混，再在冷混缸中冷却，混合时间为7～8分钟，其中热混时温度控制在110～130℃，冷混时冷却水温度控制在13～15℃。
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