CN103589070B - 物理发泡聚丙烯电缆料及其制备方法 - Google Patents

物理发泡聚丙烯电缆料及其制备方法 Download PDF

Info

Publication number
CN103589070B
CN103589070B CN201310636702.4A CN201310636702A CN103589070B CN 103589070 B CN103589070 B CN 103589070B CN 201310636702 A CN201310636702 A CN 201310636702A CN 103589070 B CN103589070 B CN 103589070B
Authority
CN
China
Prior art keywords
parts
ethylene
copolymer resin
preparation
physical blowing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310636702.4A
Other languages
English (en)
Other versions
CN103589070A (zh
Inventor
董景茹
汪全信
董文博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN POLYTECH POLYMER TECHNOLOGY Co Ltd
Original Assignee
TIANJIN POLYTECH POLYMER TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN POLYTECH POLYMER TECHNOLOGY Co Ltd filed Critical TIANJIN POLYTECH POLYMER TECHNOLOGY Co Ltd
Priority to CN201310636702.4A priority Critical patent/CN103589070B/zh
Publication of CN103589070A publication Critical patent/CN103589070A/zh
Application granted granted Critical
Publication of CN103589070B publication Critical patent/CN103589070B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • 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
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
    • 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
    • H01B3/441—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 alkenes
    • 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
    • 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
    • C08J2207/00—Foams characterised by their intended use
    • C08J2207/06—Electrical wire insulation
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—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
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2423/06—Polyethene
    • 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
    • C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

一种物理发泡聚丙烯电缆料及其制备方法，该电缆料主要由以下重量份数的组分组成：高熔体强度聚丙烯树脂50至60份，乙烯-辛烯共聚物树脂树脂20至30份，乙烯-丁烯共聚物树脂20至30份，聚乙烯蜡5至8份，膨胀微球2至3份，流变剂0.1份。物理发泡聚丙烯电缆料的制备方法是，将除了高熔体强度聚丙烯树脂原料外按照各自重量份数配好计量后投入混合机内混合均匀，然后送入双螺杆挤出机中共混挤出、过滤拉条，再经过水槽冷却干燥，进入切粒机切成发泡母粒，再按照1：1的比例与高熔体强度聚丙烯树脂混合包装，得到成品；该电缆料发泡度高，强度高，成本低，可广泛用于电力电缆轻质内护套；其制备方法设计合理，操作简便。

Description

物理发泡聚丙烯电缆料及其制备方法
技术领域
本发明涉及一种用于电力电缆用轻质内护层的物理发泡聚丙烯电缆料及其制备方法，尤其涉及一种物理发泡聚丙烯电缆料及其制备方法。
背景技术
电力电缆对于现代生活就像人体的动脉血管一样必不可少，广泛深入到我们生活的方方面面，我们无法想象没有电的生活。目前输电用电力电缆敷设于地下或敷设专用电缆桥架上。为了不让电缆受到外部机械力的损伤，在电缆结构设计时，除了最外层用塑料或橡胶做外护套之外，其主要保护作用的内护套多用镀锌钢带或镀锌钢丝，这样的结构已经在电缆行业使用了上百年。但是由于钢带和钢丝比重大，为7.85g/cm3，所以钢带或钢丝重量在电缆总重比例达到20～60％，甚至70％，所以在制造和施工过程中需要大型叉车或吊车或牵引车搬运和拖动施工。人们开始考虑采用轻量化材料代替钢带和钢丝用于电缆内护层。可内护层要求强度高、低成本、生产效率高，起到保护电缆内绝缘的作用，采用物理发泡聚丙烯内护层可以满足要求：一方面比起绕包钢带或钢丝工艺相比简单，用常规挤出机挤出，可以大幅度提高生产效率，二是显著降低电缆重量，因为发泡聚丙烯密度只有0.6～0.7g/cm3，至少可以降低20～50％的重量，便于搬运和施工；三是成本低廉。
物理发泡聚丙烯电缆料技术难点主要在于：1.发泡基材必须用高熔体强度聚丙烯。普通聚丙烯树脂由于熔体强度低，根本无法发泡，即使发泡也容易破泡，产生塌陷，韧性差，强度低，无法使用；2.另一方面传统化学发泡剂存在分散性差，分解产物腐蚀金属模具、等缺点，从而造成发泡度不稳定、发泡度低；3.再一方面工艺方面采用传统的简单共混方法很容易造成分散不均匀导致发泡不均匀，易产生缺陷，最终影响产品质量。
发明内容
本发明的目的在于克服困扰该项技术三大缺点，提供一种物理发泡聚丙烯电缆料及其制备方法，采用高熔体强度聚丙烯树脂为基本原料，通过添加乙烯-辛烯共聚物树脂进一步提高熔体强度和韧性，添加乙烯-丁烯共聚物树脂改善加工性能，添加一种可发泡膨胀微球，加热可显著膨胀数倍，其发泡度在30～40％，产生均匀、细密、封闭的泡沫，添加低分子聚乙烯蜡降低熔体粘度，使发泡母粒再挤出造粒过程中不会提前发泡，在挤出电缆内护层生产过程中可均匀发泡，密度达到0.6～0.7g/cm3，并保持适当抗张强度和抗压强度以及弯曲性能，替代钢带或钢丝，大幅度降低电缆重量。其制备方法设计合理，操作简便。
本发明的目的是由以下技术方案实现的。
本发明物理发泡聚丙烯电缆料其特征在于，其主要成份和重量份数是：高熔体强度聚丙烯树脂50至60份，乙烯-辛烯共聚物树脂20至30份，乙烯-丁烯共聚物树脂20至30份，聚乙烯蜡5至8份，膨胀微球2至3份，流变剂0.1份。
前述的物理发泡聚丙烯电缆料，其中，根据权利要求1所述的物理发泡聚丙烯电缆料，其特征在于，所述高熔体强度聚丙烯树脂为熔指为0.5～2.0/10min，密度为0.90g/cm3，熔体强度不小于20cN的高熔体强度聚丙烯树脂；乙烯-辛烯共聚物树脂为熔指为0.5～2.0g/10min，密度为0.87g/cm3的乙烯-辛烯共聚物树脂；乙烯-丁烯共聚物树脂为熔指为15～30g/10min，密度为0.885g/cm3的乙烯-丁烯共聚物树脂；聚乙烯蜡为分子量为2000至3000，熔点为105至110℃的低分子聚乙烯蜡；膨胀微球为粒径28至40微米，起始膨胀温度为135至150℃的未膨胀微球干粉；流变剂为为四氟乙烯-偏氟乙烯-六氟丙烯共聚物。
本发明所述的物理发泡聚丙烯电缆料的制备方法，其特征在于，将除了高熔体强度聚丙烯以外原料按照各自重量份数配好计量后投入混合机混合均匀，接着在双螺杆挤出机中共混、挤出、过滤、拉条，再经水槽冷却，通过鼓风机干燥，进入切粒机切成发泡母粒，再按照1：1的比例与高熔体强度聚丙烯混合均匀，最后包装，得到成品。
所述的物理发泡聚丙烯电缆料的制备方法，其特征在于，所述混合机的混合时间为5～10分钟；所述挤出机是直径为50mm的双螺杆挤出机，其挤出温度为100至130℃，挤出速度为200至300转/分钟；所述冷却后包装的温度是50℃以下。
本发明物理发泡聚丙烯电缆料及其制备方法的有益效果，其采用强度较高的高熔体强度聚丙烯树脂为基本原料；通过添加分子链较长的乙烯-辛烯共聚物树脂，可以进一步提高熔体强度和韧性；通过添加乙烯-丁烯共聚物树脂改善材料加工性能性能，添加聚乙烯蜡降低熔体粘度，添加膨胀微球，利用其加热可以膨胀到原来的3～10倍体积，降低密度，添加流变剂改善材料的表面，材料的使用范围广泛；提供一种物理发泡聚烯烃弹性体电缆料及其制备方法，挤出发泡后密度控制在0.6至0.7g/cm3之间。其制备方法设计合理，操作简便。
附图说明
图1是本发明的工作流程图。
具体实施方式
本发明物理发泡聚丙烯电缆料，其主要成份和重量份数是：高熔体强度聚丙烯树脂50至60份，乙烯-辛烯共聚物树脂20至30份，乙烯-丁烯共聚物树脂20至30份，聚乙烯蜡5至8份，膨胀微球2至3份，流变剂0.1份。
本发明的物理发泡聚丙烯电缆料，其中，所述高熔体强度聚丙烯树脂为熔指为0.5～2.0/10min，密度为0.90g/cm3，熔体强度不小于20cN的高熔体强度聚丙烯树脂；乙烯-辛烯共聚物树脂为熔指为0.5～2.0g/10min，密度为0.87g/cm3的乙烯-辛烯共聚物树脂；乙烯-丁烯共聚物树脂树脂为熔指为15～30g/10min，密度为0.885g/cm3的乙烯-丁烯共聚物树脂；聚乙烯蜡为分子量为2000至3000，熔点为105至110℃的低分子聚乙烯蜡；膨胀微球为粒径28至40微米，起始膨胀温度为135至150℃的未膨胀微球干粉；流变剂为为四氟乙烯-偏氟乙烯-六氟丙烯共聚物。
本发明所述的物理发泡聚丙烯电缆料的制备方法，其特征在于，将除了高熔体强度聚丙烯以外原料按照各自重量份数配好计量后投入混合机混合均匀，接着在双螺杆挤出机中共混、挤出、过滤、拉条，再经水槽冷却，通过鼓风机干燥，进入切粒机切成发泡母粒，再按照1：1的比例与高熔体强度聚丙烯混合均匀，最后包装，得到成品。
本发明物理发泡聚丙烯电缆料的制备方法，其中，所述混合机的混合时间为5至10分钟；所述挤出机是直径为50mm的双螺杆挤出机，其挤出温度为100至130℃，挤出速度为200至300转/分钟；所述冷却后包装的温度是50℃以下。
实施例：
实施例1和实施例2按照表1中所示各组分重量份数配制：
表1为本发明实施例各组分重量份数表
实施例1的制备：
将表1中所述除了高熔体强度聚丙烯以外原料按照各自重量份数配好后投入混合机混合均匀，其混合时间为5至10分钟，接着送入直径为50mm的双螺杆挤出机共混、过滤、挤出拉条，其挤出温度为100℃至130℃，挤出速度为200转/分钟，然后经过冷却水槽冷却，通过鼓风机干燥，再进入切粒机切成发泡母粒，最后冷却至50℃以下，再按照1：1的比例与高熔体强度聚丙烯混合均匀，最后包装，得到成品，如图1所示。
实施例2的制备：
将表1中所述除了高熔体强度聚丙烯以外原料按照各自重量份数配好后投入混合机混合均匀，其混合时间为5至10分钟，接着送入直径为50mm的双螺杆挤出机共混、过滤、挤出拉条，其挤出温度为100℃至130℃，挤出速度为200转/分钟，然后经过冷却水槽冷却，通过鼓风机干燥，再进入切粒机切成发泡母粒，最后冷却至50℃以下，再按照1：1的比例与高熔体强度聚丙烯混合均匀，最后包装，得到成品。
本发明实施例制备如下表2所示：
表2为发明实施例制备物理发泡聚丙烯电缆料的主要性能要求
采用本发明实施例得到的物理发泡聚丙烯电缆料，按照GB/T2564标准要求，在200℃温度下压片，测试性能如表3所示：
表3为采用本发明实施例得到的物理发泡聚丙烯电缆料的性能表
从表3可以看出，本发明实施例制备的物理发泡聚丙烯电缆料性能完全符合使用要求。
本发明实施例为进行说明的内容为现有技术，故不再进行赘述。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (3)

1.一种物理发泡聚丙烯电缆料，其特征在于，其主要成份和重量份数是：高熔体强度聚丙烯树脂50至60份，乙烯-辛烯共聚物树脂20至30份，乙烯-丁烯共聚物树脂20至30份，聚乙烯蜡5至8份，膨胀微球2至3份，流变剂0.1份；
所述高熔体强度聚丙烯树脂为熔指为0.5～2.0/10min，密度为0.90g/cm3，熔体强度不小于20cN的高熔体强度聚丙烯树脂；
所述乙烯-辛烯共聚物树脂为熔指为0.5～2.0g/10min，密度为0.87g/cm3的乙烯-辛烯共聚物树脂；
所述乙烯-丁烯共聚物树脂为熔指为15～30g/10min，密度为0.885g/cm3的乙烯-丁烯共聚物树脂；
所述聚乙烯蜡为分子量为2000至3000，熔点为105至110℃的低分子聚乙烯蜡；
所述膨胀微球为粒径28至40微米，起始膨胀温度为135至150℃的未膨胀微球干粉；
所述流变剂为为四氟乙烯-偏氟乙烯-六氟丙烯共聚物。
2.一种如权利要求1所述的物理发泡聚丙烯电缆料的制备方法，其特征在于，将除了高熔体强度聚丙烯以外原料按照各自重量份数配好计量后投入混合机混合均匀，接着在双螺杆挤出机中共混、挤出、过滤、拉条，再经水槽冷却，通过鼓风机干燥，进入切粒机切成发泡母粒，再按照1∶1的比例与高熔体强度聚丙烯混合均匀，最后包装，得到成品。
3.根据权利要求2所述的物理发泡聚丙烯电缆料的制备方法，其特征在于，所述混合机的混合时间为5～10分钟；所述挤出机是直径为50mm的双螺杆挤出机，其挤出温度为100至130℃，挤出速度为200至300转/分钟；所述冷却后包装的温度是50℃以下。
CN201310636702.4A 2013-11-27 2013-11-27 物理发泡聚丙烯电缆料及其制备方法 Active CN103589070B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310636702.4A CN103589070B (zh) 2013-11-27 2013-11-27 物理发泡聚丙烯电缆料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310636702.4A CN103589070B (zh) 2013-11-27 2013-11-27 物理发泡聚丙烯电缆料及其制备方法

Publications (2)

Publication Number Publication Date
CN103589070A CN103589070A (zh) 2014-02-19
CN103589070B true CN103589070B (zh) 2016-01-20

Family

ID=50079406

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310636702.4A Active CN103589070B (zh) 2013-11-27 2013-11-27 物理发泡聚丙烯电缆料及其制备方法

Country Status (1)

Country Link
CN (1) CN103589070B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3512912A4 (en) * 2016-09-13 2020-05-06 Dow Global Technologies LLC NUCLEATION AGENT FOR INSULATION OF EXPANDABLE CABLE

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104610652A (zh) * 2015-01-05 2015-05-13 合肥普特化轻材料有限公司 一种抗虎皮纹聚丙烯复合材料及其制备方法
CN104877222A (zh) * 2015-06-11 2015-09-02 汕头高新区奥星光通信设备有限公司 一种新型轻质高强低密度光电缆护套料及其制备方法
CN105037952B (zh) * 2015-06-29 2016-08-24 广州敬信高聚物科技有限公司 一种聚丙烯泡沫组合物及其制备方法和应用
CN107685413B (zh) * 2017-08-23 2019-05-10 南京欣阳新能源科技有限公司 一种由低温热膨胀微球发泡聚丙烯塑料的方法
EP3705513B1 (en) * 2019-03-06 2024-05-01 Borealis AG Foamable polyolefin composition providing increased flexibility
MX2022000070A (es) * 2019-07-01 2022-02-25 Dow Global Technologies Llc Composicion aislante de polietileno expandido de baja densidad.
CN110724342A (zh) * 2019-10-21 2020-01-24 晋江瑞碧科技有限公司 微发泡聚丙烯树脂组合物及其制备方法和用途

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1225867A (zh) * 1998-01-09 1999-08-18 蒙岱尔北美股份有限公司 由高熔体强度聚丙烯材料制备有良好低温韧性的泡沫制品的方法
CN101631266A (zh) * 2009-07-28 2010-01-20 兴升精密部件(惠州)有限公司 一种扬声器振盆材料及其制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1225867A (zh) * 1998-01-09 1999-08-18 蒙岱尔北美股份有限公司 由高熔体强度聚丙烯材料制备有良好低温韧性的泡沫制品的方法
CN101631266A (zh) * 2009-07-28 2010-01-20 兴升精密部件(惠州)有限公司 一种扬声器振盆材料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3512912A4 (en) * 2016-09-13 2020-05-06 Dow Global Technologies LLC NUCLEATION AGENT FOR INSULATION OF EXPANDABLE CABLE

Also Published As

Publication number Publication date
CN103589070A (zh) 2014-02-19

Similar Documents

Publication Publication Date Title
CN103589070B (zh) 物理发泡聚丙烯电缆料及其制备方法
CN102532685B (zh) 纳米滑石粉改性聚丙烯复合材料及其制备方法
CN101962455B (zh) 注塑型微发泡木塑复合材料及制备方法
KR102085939B1 (ko) 전도성 발포 비드 및 그 제조방법
CN114907608B (zh) 发泡聚丙烯珠粒及其制备方法和模塑制件
CN104403175A (zh) 一种永久抗静电的聚烯烃母料及其制备方法
CN103113653B (zh) 一种hdpe/ldpe共混发泡材料及其制备方法
CN103709509A (zh) 一种可膨胀微球填充改性的聚丙烯复合材料及其制备方法
CN102604199A (zh) 抗开裂低烟无卤阻燃聚烯烃护套料及其制备方法
CN102516623A (zh) 一种耐高温化学交联聚乙烯泡棉及其制备方法
CN102643480A (zh) 防静电合金复合材料、制备方法
CN103435895A (zh) 一种制备绝缘高导热复合材料的方法
CN108239330A (zh) 一种汽车线用辐照交联低烟无卤阻燃料及其制备方法
CN105175896A (zh) 一种无机矿物粉体填充发泡母料及其制备方法
CN109796658A (zh) 一种高强度隔离结构uhmwpe/pp/超导炭黑导电复合材料及其制备方法
CN106432887B (zh) 一种聚烯烃发泡母粒的组成及制备方法和用途
CN106117741A (zh) 一种聚乙烯复合泡沫材料及其制备方法
CN102241853B (zh) 一种钙晶须改性聚乙烯复合材料及其制备方法
CN103724786A (zh) 无卤膨胀阻燃eva专用料及其制备方法
JP2023503559A (ja) ポリオレフィン系樹脂発泡体及びこれから製造された成形品
CN102788198B (zh) 多功能pp-r管材及其制备方法
CN109265825B (zh) 一种聚丙烯或聚丙烯复合物发泡制品及其制备方法
KR102265547B1 (ko) 반전도성 폴리프로필렌 수지 발포 입자의 제조방법 및 발포 성형체
CN109280240B (zh) 化学交联发泡聚乙烯材料的制备方法及一种螺杆
CN108148336B (zh) 无卤导电tpe电缆料及其制备方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant