WO2021114755A1 - 一种耐电痕聚氯乙烯绝缘料及其制备方法与应用 - Google Patents

一种耐电痕聚氯乙烯绝缘料及其制备方法与应用 Download PDF

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WO2021114755A1
WO2021114755A1 PCT/CN2020/113279 CN2020113279W WO2021114755A1 WO 2021114755 A1 WO2021114755 A1 WO 2021114755A1 CN 2020113279 W CN2020113279 W CN 2020113279W WO 2021114755 A1 WO2021114755 A1 WO 2021114755A1
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polyvinyl chloride
parts
insulating material
tracking
resistant
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PCT/CN2020/113279
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French (fr)
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魏国宝
徐露露
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上海凯波特种电缆料厂有限公司
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • 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
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

Definitions

  • the invention relates to the technical field of cable sheathing materials, and specifically discloses a tracking-resistant polyvinyl chloride insulating material and a preparation method thereof, and discloses that the tracking-resistant polyvinyl chloride insulating material is used in the field of overhead insulated cables with a rated voltage of 1KV and below Applications.
  • GB/T12527-2008 for overhead insulated cables with rated voltages of 1KV and below stipulates that the insulating materials should be weather-resistant polyvinyl chloride, polyethylene, and cross-linked polyethylene-based mixtures.
  • Polyethylene and cross-linked polyethylene are modified materials with polyethylene resin as the base material.
  • Polyethylene resin is non-polar and has good tracking resistance.
  • tracking-resistant polyethylene sheath materials is also Many, such as a high tracking resistance ADSS optical cable sheathing material (patent number: CN104151681A), but there are few reports on the tracking resistance of PVC insulating materials.
  • the PVC insulating material for overhead cables currently on the market can only withstand 1 hour under a voltage of 1.5KV according to GB/T6553-2014, and the tracking resistance is particularly poor.
  • the purpose of the present invention is to provide a tracking resistant polyvinyl chloride insulating material.
  • a tracking-resistant polyvinyl chloride insulating material in parts by weight, comprising the following components: 80-100 parts of polyvinyl chloride resin, 40-70 parts of plasticizer, 10-20 parts of nano-level active calcium carbonate, resistant 30 to 80 parts of electric tracking modifier, 6 to 8 parts of heat stabilizer, 1 to 1.8 parts of light stabilizer, 2 to 3 parts of ultraviolet absorber, and 10 to 20 parts of electrical property modifier.
  • the polyvinyl chloride resin is a compound of polyvinyl chloride resin A and polyvinyl chloride resin B according to a mass ratio of 1:1; wherein the degree of polymerization of the polyvinyl chloride resin A is 1400-1500, and the The degree of polymerization of polyvinyl chloride resin B is 2300-2700.
  • the model of the polyvinyl chloride resin A is Ningbo Formosa S-75
  • the model of the polyvinyl chloride resin B is Ningbo Formosa S-85
  • the primary particle size of the nano-activated calcium carbonate is average It is 60-90nm
  • the calcium carbonate content is greater than 95%
  • the specific surface area is 19-27m2/g
  • the model of the nano-active calcium carbonate is Jiangxi Huaming SPSL-1.
  • the plasticizer is a combination of plasticizer A and plasticizer B according to a mass ratio (1 to 3):1; wherein the plasticizer A is dioctyl terephthalate, so The plasticizer B is a halogenated polyether fatty acid ester.
  • the tracking resistance modifier is the tracking resistance modifier A, the tracking resistance modifier B and the tracking resistance modifier C according to the mass ratio (1-7): (1-4): 1 is compounded; wherein the tracking resistance modifier A is magnesium hydroxide, the tracking resistance modifier B is aluminum hydroxide, and the tracking resistance modifier C is nano-sized titanium dioxide.
  • the tracking resistance modifier A is high-purity magnesium hydroxide prepared by the sinking method, with a specific surface area of 4.0-6.0 m2/g, a particle size D50 of 1.25-1.65 ⁇ m, and the tracking resistance Modifier A is preferably Albemarle MAGNIFINH5;
  • the tracking resistance modifier B is aluminum hydroxide prepared by precipitation method, the particle size D50 is 1.7-2.1 ⁇ m, the specific surface area is 3.0-5.0 m2/g, and the tracking resistance modifier B is preferably Albemarle aluminum hydroxide MARTINALOL-104LEO.
  • the heat stabilizer is a powdered calcium-zinc composite heat stabilizer; and the light stabilizer is a hindered benzoate light stabilizer.
  • the heat stabilizer is preferably bear brand MC91717KA
  • the light stabilizer is preferably CYASORBUV-2908.
  • the ultraviolet absorber is a benzophenone ultraviolet absorber; the electrical property modifier is calcined clay.
  • the ultraviolet absorber is preferably CHIMASSORB81; the electrical property modifier is preferably Guangxi Lianzhuang calcined clay.
  • the present invention also claims a method for preparing the trace-resistant polyvinyl chloride insulating material disclosed above.
  • a preparation method of trace-resistant polyvinyl chloride insulating material specifically includes the following steps:
  • the kneading heating temperature is 90°C to 110°C, and the kneading time is 9 to 12 minutes.
  • the heating temperature of each section of the twin-screw granulator is evenly divided from 125 to 160° C. according to the number of heating sections.
  • the present invention also requests protection of the application of the above-mentioned trace-resistant polyvinyl chloride insulating material in overhead insulated cables.
  • the present disclosure provides a tracking-resistant polyvinyl chloride insulating material and a preparation method and application thereof, which have the following excellent effects:
  • one or more method steps mentioned in the present invention do not exclude that there may be other method steps before and after the combined steps or other method steps may be inserted between these explicitly mentioned steps, unless otherwise stated.
  • the combined connection relationship between one or more devices/devices mentioned in the present invention does not exclude that there may be other devices/devices before and after the combined device/device or are explicitly mentioned in these Other devices/devices can also be inserted between the two devices/devices, unless otherwise specified.
  • the number of each method step is only a convenient tool for identifying each method step, not to limit the arrangement order of each method step or limit the scope of implementation of the present invention. The change or adjustment of the relative relationship is If there is no substantial change in the technical content, it shall be regarded as the scope of the present invention.
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 30 kg; plasticizer halogenated polyether fatty acid ester 20 kilograms; nano-active calcium carbonate (SPSL-1) 10 kilograms; high-purity sinking method magnesium hydroxide (MAGNIFIN H5) 30 kilograms; precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 15 kilograms; nano-sized titanium dioxide 5 kilograms; Environmentally friendly calcium-zinc compound stabilizer (MC91717 KA) 6 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.2 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2.5 kg; calcined clay 10 kg.
  • SPSL-1 nano-active calcium carbonate
  • MAGNIFIN H5 high-purity sinking method magnesium hydroxide
  • MARTINAL OL-104LEO precipitation method aluminum hydroxide
  • Polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 30 kg; plasticizer halogenated polyether fatty acid ester 20 kg; nano-active calcium carbonate (SPSL- 1) 10 kg; high-purity sinking bottom method magnesium hydroxide (MAGNIFIN H5) 30 kg; precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 15 kg; nano-grade titanium dioxide 5 kg; environmentally friendly calcium and zinc composite stabilizer (MC91717 KA) 6 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.2 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2.5 kg; calcined clay 10 kg, and then put them into a high-speed kneader for heating at high speed Stirring, the temperature of the high-speed kneader is controlled at 90-110°C, and the kneading time is 9-12 minutes;
  • the uniformly stirred raw materials are directly fed into the twin-screw feeder for extruding.
  • the heating temperature of each section of the twin-screw feeder is evenly divided from 125-160°C according to the number of heating sections;
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 40 kg; plasticizer halogenated polyether fatty acid ester 15 kg; Nano-active calcium carbonate (SPSL-1) 15 kg; High-purity sinking method magnesium hydroxide (MAGNIFIN H5) 35 kg; Precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 20 kg; Nano-scale titanium dioxide 5 kg; Environmentally friendly calcium-zinc composite stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.8 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 3 kg; calcined clay 15 kg.
  • SPSL-1 Nano-active calcium carbonate
  • MAGNIFIN H5 High-purity sinking method magnesium hydroxide
  • MARTINAL OL-104LEO Precipitation method aluminum hydroxide
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 40 kg; plasticizer halogenated polyether base 15 kg of fatty acid ester; 15 kg of nano-active calcium carbonate (SPSL-1); 35 kg of high-purity magnesium hydroxide (MAGNIFIN H5); precipitation method of aluminum hydroxide (MARTINAL OL-104LEO) 20 kg; nano-sized titanium dioxide 5 kg; environmentally friendly calcium-zinc compound stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.8 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 3 kg; calcined clay 15 kg, placed in a high-speed kneader in turn, heated for high-speed stirring, the temperature of the high-speed kneader is controlled at 90-110°C, and the kneading time is
  • the uniformly stirred raw materials are directly fed into the twin-screw feeder for extruding.
  • the heating temperature of each section of the twin-screw feeder is evenly divided from 125-160°C according to the number of heating sections;
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 50 kg; plasticizer halogenated polyether fatty acid ester 10 kg; Nano active calcium carbonate (SPSL-1) 10 kg; High-purity sinking method magnesium hydroxide (MAGNIFIN H5) 40 kg; Precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 15 kg; Nano-grade titanium dioxide 10 kg; Environmentally friendly calcium-zinc composite stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.8 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2 kg; calcined clay 20 kg.
  • SPSL-1 Nano active calcium carbonate
  • MAGNIFIN H5 High-purity sinking method magnesium hydroxide
  • MARTINAL OL-104LEO Precipitation method aluminum hydroxide
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 50 kg; plasticizer halogenated polyether base Fatty acid ester 10 kg; nano-active calcium carbonate (SPSL-1) 10 kg; high-purity sedimentation method magnesium hydroxide (MAGNIFIN H5) 40 kg; precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 15 kg; nano-sized titanium dioxide 10 kg; environmentally friendly calcium-zinc compound stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1.8 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2 kg; calcined clay 20 kg, placed in a high-speed kneader in turn, heated for high-speed stirring, the temperature of the high-speed kneader is controlled at 90-110°C, and the kneading time is
  • the uniformly stirred raw materials are directly fed into the twin-screw feeder for extruding.
  • the heating temperature of each section of the twin-screw feeder is evenly divided from 125-160°C according to the number of heating sections;
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 35 kg; plasticizer halogenated polyether fatty acid ester 20 kg; Nano active calcium carbonate (SPSL-1) 20 kg; High-purity sinking method magnesium hydroxide (MAGNIFIN H5) 10 kg; Precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 30 kg; Nano-grade titanium dioxide 10 kg; Environmentally friendly calcium-zinc composite stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2.5 kg; calcined clay 15 kg.
  • SPSL-1 Nano active calcium carbonate
  • MAGNIFIN H5 High-purity sinking method magnesium hydroxide
  • MARTINAL OL-104LEO Precipitation method aluminum hydroxide
  • Polyvinyl chloride resin A (S-75) 50 kg; polyvinyl chloride resin B (S-85) 50 kg; plasticizer dioctyl terephthalate 35 kg; plasticizer halogenated polyether base Fatty acid ester 20 kg; nano-active calcium carbonate (SPSL-1) 20 kg; high-purity sinking method magnesium hydroxide (MAGNIFIN H5) 10 kg; precipitation method aluminum hydroxide (MARTINAL OL-104LEO) 30 kg; nano-sized titanium dioxide 10 kg; environmentally friendly calcium-zinc compound stabilizer (MC91717 KA) 8 kg; hindered benzoate light stabilizer (CYASORB UV-2908) 1 kg; benzophenone ultraviolet absorber (CHIMASSORB 81) 2.5 kg; calcined clay 15 kg, placed in a high-speed kneader in turn, heated for high-speed stirring, the temperature of the high-speed kneader is controlled at 90-110°C, and the kneading time is 9
  • the uniformly stirred raw materials are directly fed into the twin-screw feeder for extruding.
  • the heating temperature of each section of the twin-screw feeder is evenly divided from 125-160°C according to the number of heating sections;
  • the beneficial effects of the present invention are: on the basis of meeting all the requirements of the PVC insulating material in GB/T 12527-2008, the tracking resistance performance is effectively improved, It can pass the 1A2.5 level tracking resistance test (according to GB/T6553-2014) to extend the service life of PVC insulated overhead cables and ensure the safety of overhead transmission lines.
  • the present invention effectively overcomes various shortcomings in the prior art and has a high industrial value.

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Abstract

耐电痕聚氯乙烯绝缘料及其制备方法与应用，按重量份数计，所述耐电痕聚氯乙烯绝缘料包括下列组分：聚氯乙烯树脂80～100份、增塑剂40～70份、纳米级活性碳酸钙10～20份、耐电痕改性剂30～80份、热稳定剂6～8份、光稳定剂1～1.8份、紫外线吸收剂2～3份、电性能改性剂10～20份。所述耐电痕聚氯乙烯绝缘料在满足GB/T12527-2008标准中对聚氯乙烯绝缘料的所有要求的基础上，耐电痕性能得到有效改善，可以通过1A2.5级耐电痕试验(按照GB/T6553-2014标准)，能够延长聚氯乙烯绝缘架空电缆使用寿命，保证架空输电线路安全。

Description

一种耐电痕聚氯乙烯绝缘料及其制备方法与应用 技术领域
本发明涉及电缆护套料技术领域，具体公开了一种耐电痕聚氯乙烯绝缘料及其制备方法，并公开所述耐电痕聚氯乙烯绝缘料在额定电压1KV及以下架空绝缘电缆领域中的应用。
背景技术
近些年来，我国经济得到迅猛发展，尤其是作为国家经济命脉的电力行业更是发展迅速，其中架空输电线路安全问题被人们广泛关注。架空电线顾名思义是架在空中敷设，在运行过程中，不可避免地要受到温度、电、机械的应力和振动，阳光暴晒、有害气体、化学物质、潮湿、灰尘等各种因素的作用，随着运行时间的延续，绝缘材料必然发生老化，并且其老化速度远快于其他材料，导致绝缘电阻下降、漏电电流增大，最后引起短路，导致绝缘破坏、火灾等严重灾难。
GB/T12527-2008额定电压1KV及以下架空绝缘电缆中规定绝缘材料应采用耐候性的聚氯乙烯、聚乙烯、交联聚乙烯为基的混合料。聚乙烯、交联聚乙烯是以聚乙烯树脂为基材的改性材料，聚乙烯树脂是非极性本身具有较好的耐电痕性能，目前对耐电痕聚乙烯护套料的发明研究也很多，如一种高耐电痕ADSS光缆护套料(专利号：CN104151681A)，但是对聚氯乙烯绝缘料的耐电痕研究却鲜有报道。并且目前市场上的架空电缆用聚氯乙烯绝缘料，按照GB/T6553-2014在1.5KV电压下只能经受1小时，耐电痕性能特别差。
发明内容
为了改善现有架空电缆用聚氯乙烯绝缘料耐电痕性能，延长聚氯乙烯绝缘架空电缆使用寿命，保证架空输电线路安全，本发明的目的在于提供一种耐电痕聚氯乙烯绝缘料。
为了实现上述目的，本发明采用如下技术方案：
一种耐电痕聚氯乙烯绝缘料，按照重量份数计，包括下列组份：聚氯乙烯树脂80～100份、增塑剂40～70份、纳米级活性碳酸钙10～20份、耐电痕改性剂30～80份、热稳定剂6～8份、光稳定剂1～1.8份、紫外线吸收剂2～3份、电性能改性剂10～20份。
优选的，所述聚氯乙烯树脂为聚氯乙烯树脂A和聚氯乙烯树脂B按照质量比1：1复配而成；其中所述聚氯乙烯树脂A的聚合度为1400-1500，所述聚氯乙烯树脂B的聚合度为2300-2700。
示范性的，所述聚氯乙烯树脂A的型号为宁波台塑S-75，所述聚氯乙烯树脂B的型号为宁波台塑S-85，并且所述纳米活性碳酸钙的一次粒径平均为60-90nm，碳酸钙含量＞95％，比表面积19-27m2/g，以及所述纳米活性碳酸钙的型号为江西华明SPSL-1。
优选的，所述增塑剂为增塑剂A和增塑剂B按照质量比(1～3)：1复配而成；其中所述增塑剂A为对苯二甲酸二辛酯，所述增塑剂B为卤代多醚基脂肪酸酯。
优选的，所述耐电痕改性剂为耐电痕改性剂A、耐电痕改性剂B和耐电痕改性剂C按照质量比(1～7)：(1～4)：1复配而成；其中所述耐电痕改性剂A为氢氧化镁，所述耐电痕改性剂B为氢氧化铝，所述耐电痕改性剂C为纳米级二氧化钛。
需要说明的是，所述耐电痕改性剂A为沉底法制备的高纯度氢氧化镁，比表面积4.0-6.0m2/g，粒径D50为1.25-1.65μm，且所述耐电痕改性剂A优选为雅宝MAGNIFINH5；
所述耐电痕改性剂B为沉淀法制备的氢氧化铝，粒径D50为1.7-2.1μm，比表面积3.0-5.0m2/g，且所述所述耐电痕改性剂B优选为雅宝氢氧化铝MARTINALOL-104LEO。
优选的，所述热稳定剂为粉状钙锌复合热稳定剂；且所述光稳定剂为受阻苯甲酸酯类光稳定剂。
示范性的，所述热稳定剂优选熊牌MC91717KA，所述光稳定剂优选CYASORBUV-2908。
优选的，所述紫外线吸收剂为二苯甲酮类紫外线吸收剂；所述电性能改性剂为煅烧陶土。
示范性的，所述紫外线吸收剂优选CHIMASSORB81；所述电性能改性剂优选广西联壮煅烧陶土。
本发明还请求保护上述公开的一种耐电痕聚氯乙烯绝缘料的制备方法。
一种耐电痕聚氯乙烯绝缘料的制备方法，具体包括如下步骤：
(1)按照权利要求1公开的组成配比分别称取原料，并将各原料置入高速捏合机中加热搅拌，得到均一的混合料；
(2)将搅拌均匀的混合料通过双螺杆造粒机进行挤出造粒，随后烘干即得耐电痕聚氯乙烯绝缘料。
优选的，所述步骤(1)中，捏合加热温度为90℃～110℃，捏合时间为9～12min。
优选的，所述步骤(2)中，双螺杆造粒机各段加热温度按加热段数从125-160℃均分。
且双螺杆造粒机各段加热温度过低会出现塑化不良的情况，温度过高则会使材料容易分解。
此外，本发明还请求保护上述耐电痕聚氯乙烯绝缘料在架空绝缘电缆中的应用。
具体为，将所述耐电痕聚氯乙烯绝缘料在额定电压1KV及以下架空绝缘电缆中的应用。
经由上述的技术方案可知，与现有技术相比，本发明公开提供了一种耐电痕聚氯乙烯绝缘料及其制备方法与应用，具有如下优异效果：
在满足GB/T12527-2008中聚氯乙烯绝缘料的所有要求基础上，耐电痕性能得到有效改善，可以通过1A2.5级耐电痕试验(按照GB/T6553-2014)，延长聚氯乙烯绝缘架空电缆使用寿命，保证架空输电线路安全。
具体实施方式
下面将结合本发明实施例提供的技术方案，对本发明进行清楚、完整地描述，显然，所描述的实施例仅仅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。
须知，下列实施例中未具体注明的工艺设备或装置均采用本领域内的常规设备或装置；所有压力值和范围都是指绝对压力。
此外应理解，本发明中提到的一个或多个方法步骤并不排斥在所述组合步骤前后还可以存在其他方法步骤或在这些明确提到的步骤之间还可以***其他方法步骤，除非另有说明；还应理解，本发明中提到的一个或多个设备/装置之间的组合连接关系并不排斥在所述组合设备/装置前后还可以存在其他 设备/装置或在这些明确提到的两个设备/装置之间还可以***其他设备/装置，除非另有说明。而且，除非另有说明，各方法步骤的编号仅为鉴别各方法步骤的便利工具，而非为限制各方法步骤的排列次序或限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容的情况下，当亦视为本发明可实施的范畴。
下面结合具体实施例进一步阐述本发明的制备工艺和优异结果，但本发明的内容不仅仅局限于下面的实施例。
实施例1
1.实验材料
聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯30公斤；增塑剂卤代多醚基脂肪酸酯20公斤；纳米活性碳酸钙(SPSL-1)10公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)30公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)15公斤；纳米级二氧化钛5公斤；环保钙锌复合稳定剂(MC91717 KA)6公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.2公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2.5公斤；煅烧陶土10公斤。
2.制备方法：
a、将聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯30公斤；增塑剂卤代多醚基脂肪酸酯20公斤；纳米活性碳酸钙(SPSL-1)10公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)30公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)15公斤；纳米级二氧化钛5公斤；环保钙锌复合稳定剂(MC91717 KA)6公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.2公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2.5公斤；煅烧陶土10公斤，依次置入高速捏合机中加热进行高速搅拌，高速捏合机温度控制在90-110℃，捏合时间为9-12分钟；
b、将搅拌均匀的原料直接进入双螺杆造料机进行挤出造料，双螺杆造料机各段加热温度按加热段数从125-160℃均分；
c、挤出造料的成品经过烘干后包装入库。
实施例2：
1.实验材料
聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯40公斤；增塑剂卤代多醚基脂肪酸酯15公斤；纳米活性碳酸钙(SPSL-1)15公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)35公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)20公斤；纳米级二氧化钛5公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.8公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)3公斤；煅烧陶土15公斤。
2.制备方法：
a、将聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯40公斤；增塑剂卤代多醚基脂肪酸酯15公斤；纳米活性碳酸钙(SPSL-1)15公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)35公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)20公斤；纳米级二氧化钛5公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.8公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)3公斤；煅烧陶土15公斤，依次置入高速捏合机中加热进行高速搅拌，高速捏合机温度控制在90-110℃，捏合时间为9-12分钟；
b、将搅拌均匀的原料直接进入双螺杆造料机进行挤出造料，双螺杆造料机各段加热温度按加热段数从125-160℃均分；
c、挤出造料的成品经过烘干后包装入库。
实施例3：
1.实验材料
聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯50公斤；增塑剂卤代多醚基脂肪酸酯10公斤；纳米活性碳酸钙(SPSL-1)10公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)40公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)15公斤；纳米级二氧化钛10公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.8公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2公斤；煅烧陶土20公斤。
2.制备方法：
a、将聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯50公斤；增塑剂卤代多醚基脂肪酸酯10公斤；纳米活性碳酸钙(SPSL-1)10公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)40公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)15公斤；纳米级二氧化钛10公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1.8公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2公斤；煅烧陶土20公斤，依次置入高速捏合机中加热进行高速搅拌，高速捏合机温度控制在90-110℃，捏合时间为9-12分钟；
b、将搅拌均匀的原料直接进入双螺杆造料机进行挤出造料，双螺杆造料机各段加热温度按加热段数从125-160℃均分；
c、挤出造料的成品经过烘干后包装入库。
实施例4：
1.实验材料
聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯35公斤；增塑剂卤代多醚基脂肪酸酯20公斤；纳米活性碳酸钙(SPSL-1)20公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)10 公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)30公斤；纳米级二氧化钛10公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2.5公斤；煅烧陶土15公斤。
2.制备方法：
a、将聚氯乙烯树脂A(S-75)50公斤；聚氯乙烯树脂B(S-85)50公斤；增塑剂对苯二甲酸二辛酯35公斤；增塑剂卤代多醚基脂肪酸酯20公斤；纳米活性碳酸钙(SPSL-1)20公斤；高纯度沉底法氢氧化镁(MAGNIFIN H5)10公斤；沉淀法氢氧化铝(MARTINAL OL-104LEO)30公斤；纳米级二氧化钛10公斤；环保钙锌复合稳定剂(MC91717 KA)8公斤；受阻苯甲酸酯类光稳定剂(CYASORB UV-2908)1公斤；二苯甲酮类紫外线吸收剂(CHIMASSORB 81)2.5公斤；煅烧陶土15公斤，依次置入高速捏合机中加热进行高速搅拌，高速捏合机温度控制在90-110℃，捏合时间为9-12分钟；
b、将搅拌均匀的原料直接进入双螺杆造料机进行挤出造料，双螺杆造料机各段加热温度按加热段数从125-160℃均分；
c、挤出造料的成品经过烘干后包装入库。
发明人对上述实施例1～实施例4公开制备的耐电痕聚氯乙烯绝缘料的性能进行检测，具体检测结果参见下表1：
表1 耐电痕聚氯乙烯绝缘料性能检测
Figure PCTCN2020113279-appb-000001
Figure PCTCN2020113279-appb-000002
*参照GB/T6553-2003及IEC60587-2007标准进行试验
由上述表1中的数据可知，与现有技术相比，本发明的有益效果为：在满足GB/T12527-2008中聚氯乙烯绝缘料的所有要求基础上，耐电痕性能得到有效改善，可以通过1A2.5级耐电痕试验(按照GB/T6553-2014)，延长聚氯乙烯绝缘架空电缆使用寿命，保证架空输电线路安全。
综上所述，本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种耐电痕聚氯乙烯绝缘料，其特征在于，按照重量份数计，包括下列组份：聚氯乙烯树脂80～100份、增塑剂40～70份、纳米级活性碳酸钙10～20份、耐电痕改性剂30～80份、热稳定剂6～8份、光稳定剂1～1.8份、紫外线吸收剂2～3份、电性能改性剂10～20份。
  2. 根据权利要求1所述的一种耐电痕聚氯乙烯绝缘料，其特征在于，所述聚氯乙烯树脂为聚氯乙烯树脂A和聚氯乙烯树脂B按照质量比1：1复配而成；其中所述聚氯乙烯树脂A的聚合度为1400-1500，所述聚氯乙烯树脂B的聚合度为2300-2700。
  3. 根据权利要求1所述的一种耐电痕聚氯乙烯绝缘料，其特征在于，所述增塑剂为增塑剂A和增塑剂B按照质量比(1～3)：1复配而成；其中所述增塑剂A为对苯二甲酸二辛酯，所述增塑剂B为卤代多醚基脂肪酸酯。
  4. 根据权利要求1所述的一种耐电痕聚氯乙烯绝缘料，其特征在于，所述耐电痕改性剂为耐电痕改性剂A、耐电痕改性剂B和耐电痕改性剂C按照质量比(1～7)：(1～4)：1复配而成；其中所述耐电痕改性剂A为氢氧化镁，所述耐电痕改性剂B为氢氧化铝，所述耐电痕改性剂C为纳米级二氧化钛。
  5. 根据权利要求1所述的一种耐电痕聚氯乙烯绝缘料，其特征在于，所述热稳定剂为粉状钙锌复合热稳定剂；且所述光稳定剂为受阻苯甲酸酯类光稳定剂。
  6. 根据权利要求1所述的一种耐电痕聚氯乙烯绝缘料，其特征在于，所述紫外线吸收剂为二苯甲酮类紫外线吸收剂；所述电性能改性剂为煅烧陶土。
  7. 一种如权利要求1所述的耐电痕聚氯乙烯绝缘料的制备方法，其特征在于，所述方法具体包括如下步骤：(1)按照权利要求1公开的组成配比分别称取原料，并将各原料置入高速捏合机中加热搅拌，得到均一的混合料；(2)将搅拌均匀的混合料通过双螺杆造粒机进行挤出造粒，随后烘干即得耐电痕聚氯乙烯绝缘料。
  8. 根据权利要求7所述的一种耐电痕聚氯乙烯绝缘料的制备方法，其特征在于，所述步骤(1)中，捏合加热温度为90℃～110℃，捏合时间为9～12min。
  9. 根据权利要求7所述的一种耐电痕聚氯乙烯绝缘料的制备方法，其特征在于，所述步骤(2)中，双螺杆造粒机各段加热温度按加热段数从125-160℃均分。
  10. 一种如权利要求1所述的耐电痕聚氯乙烯绝缘料或如权利要求7所述方法制备的耐电痕聚氯乙烯绝缘料在架空绝缘电缆中的应用。
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