CN110712396A - 一种保温隔热pp管及其制备工艺 - Google Patents

一种保温隔热pp管及其制备工艺 Download PDF

Info

Publication number
CN110712396A
CN110712396A CN201910901818.3A CN201910901818A CN110712396A CN 110712396 A CN110712396 A CN 110712396A CN 201910901818 A CN201910901818 A CN 201910901818A CN 110712396 A CN110712396 A CN 110712396A
Authority
CN
China
Prior art keywords
heat
parts
layer
insulation
preservation
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.)
Pending
Application number
CN201910901818.3A
Other languages
English (en)
Inventor
虞敏
朱加荣
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.)
RONGCHENG PIPE INDUSTRY Co Ltd
Original Assignee
RONGCHENG PIPE INDUSTRY 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 RONGCHENG PIPE INDUSTRY Co Ltd filed Critical RONGCHENG PIPE INDUSTRY Co Ltd
Priority to CN201910901818.3A priority Critical patent/CN110712396A/zh
Publication of CN110712396A publication Critical patent/CN110712396A/zh
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • C08J9/35—Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/322—Ammonium phosphate
    • C08K2003/323—Ammonium polyphosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/22—Halogen free composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

本发明公开一种保温隔热PP管，由内向外依次包括PP层、隔热保温层和外保温防护层；所述PP层的组份按重量份计包括：聚丙烯80～100份、PE 20～40份、填充剂20～30份、阻燃剂15～20份、增塑剂8～12份、润滑剂4～6份；稳定剂1～3份；抗氧化剂0.5～1.0份；隔热保温层为硬泡聚氨酯复合交联聚乙烯材料；所述外保温防护层为无卤聚丙烯树脂材料。本发明通过阻断流经管体内的液体热交换，保证管体处于较为恒定的使用温度，减少冷热交替率，减少脆化因素，延长使用年限。管体表层设的防护层无卤阻燃，进一步保护管体及保温，具有良好的使用价。

Description

一种保温隔热PP管及其制备工艺
技术领域
本发明涉及一种保温隔热PP管及其制备工艺。
技术背景
PP(Polypropylene)管，又称聚丙烯管，为半结晶的热塑性塑料管。PP管无毒、卫生，并具有耐腐蚀、耐磨损、不结垢等优点，被应用于冷热水供应系统、采暖系统、建筑给排水、城乡给排水、工业流体输送、农业灌溉等领域。PP管的使用温度区间为-20℃到70℃，低于-20℃的低温下PP管产生冻裂，高于70℃的高温的工作环境PP管产生分解，并且在冷热交替的情况下容易脆化，产生裂痕，影响其使用寿命。
目前市面上的PP管结构简单，强度低，耐温性能也差，无法保证管体的使用温度及保温效果。因此，本发明提供一种保温隔热PP管及其制备工艺，对现有的PP管结构加以改进，使PP管有一个较恒定的使用温度区间，以延长其使用寿命。
发明内容
针对上述的现有PP管存在的结构简单，强度低，耐温性能差的问题，本发明提供的保温隔热PP管及其制备工艺具体技术方案如下：
一种保温隔热PP管，由内向外依次包括PP层、隔热保温层和外保温防护层；所述PP层的组份按重量份计包括：聚丙烯80～100份、PE 20～40份、填充剂20～30份、阻燃剂15～20份、增塑剂8～12份、润滑剂4～6份；稳定剂1～3份；抗氧化剂0.5～1.0份；隔热保温层为硬泡聚氨酯复合交联聚乙烯材料；所述外保温防护层为无卤聚丙烯树脂材料。
作为优选的技术方案的，所述PP层的填充剂为石棉与陶土的混合物，且石棉和陶土的重量比为1:4。
作为优选的技术方案的，所述PP层的润滑剂为硬脂酸和白油组合，二者的重量比例为4:1。
作为优选的技术方案的，所述PP层的稳定剂为一苯基二异辛基亚磷酸酯，所述抗氧化剂为抗氧化剂1016。
作为优选的技术方案的，所述隔热保温层的硬泡聚氨酯复合交联聚乙烯材料由20～25份重量份的硬质聚氨酯泡沫和4-5份重量份的聚乙烯闭孔泡沫通过红外线波技术粘合在一起制成。
作为优选的技术方案的，所述外保温防护层的无卤聚丙烯树脂材料按重量份计包括的组分有：聚丙烯30～45份、阻燃剂5～9份、抗静电剂5～8份、润滑剂2～5份、抗氧化剂CA1～3份、消泡剂1～2份。
作为优选的技术方案的，所述阻燃剂包括超支化大分子阻燃型成炭剂和聚磷酸铵，所述超支化大分子阻燃型成炭剂和聚磷酸铵的重量比为1:1。
作为优选的技术方案的，所述外保温防护层的抗静电剂为乙炔炭黑，所述润滑剂也为硬脂酸和白油组合，二者的重量比例为4:1。
前述的保温隔热PP管，其制备方法包括如下步骤：
S1：制备PP层：按配方重量份撑取制备PP层的各组份，并将聚丙烯和PE除湿干燥至含水量小于0.3％；于开炼机中热熔混合，然后于挤出机中挤出，挤出工艺参数为：机头压力为9.5MPa；机筒分为四段，温度依次为180℃、190℃、200℃、210℃；模头区分为4段，温度依次为215℃、220℃、225℃、230℃，挤出机转速为30rad/min，牵引速度为100cm/min；然后通过喷淋冷却后牵引切割，获得PP层，备用；
S2：制备隔热保温层：取硬质聚氨酯泡沫和聚乙烯闭孔泡沫，二者重量比为5:1，充分混合均匀，采用红外线波技术使其充分粘合在一起，制成作为隔热保温层的硬泡聚氨酯复合交联聚乙烯材料，备用；
S3：包覆隔热保温层：将步骤S2中制备的硬泡聚氨酯复合交联聚乙烯材料黏贴或热熔贴合在步骤S1中制备的PP层上；
S4：包覆隔热保温层：将步骤S2中包覆了隔热保温层的PP管材作为芯材，通过挤出机将外保温防护层的无卤聚丙烯树脂材料挤出包覆在PP管芯材上，获得完成的保温隔热pp管。
根据权利要求9所述的保温隔热PP管，步骤S4外保温防护层的挤出温度为185～220℃，牵引速度为100cm/min。
有益效果：
与现有现有技术相比较，本发明具有如下优点：
本发明通过在PP管层外设隔热保温层和外保温防护层，使得流经管体内的液体热交换阻断，保证管体处于较为恒定的使用温度，减少冷热交替率，减少脆化因素，延长使用年限。另外，管体表层设的防护层无卤阻燃，进一步保护管体及保温；保温隔热层采用硬泡聚氨酯复合交联聚乙烯材料，其不仅保温性能优良，而且具有良好的弹性，减少管道受到外部机械力的挤压破坏；与此同时，硬泡聚氨酯复合交联聚乙烯材料还有良好的减躁效果，降低管体内液流的噪音，具有良好的使用价值。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合实施例对本发明的技术方案进行清楚、完整地描述。
实施例1：
本实施例提供一种保温隔热PP管，由内向外依次包括PP层、隔热保温层和外保温防护层。
本实施例中，所述PP层的组份按重量份计包括：聚丙烯80～100份、PE20～40份、填充剂20～30份、阻燃剂15～20份、增塑剂8～12份、润滑剂4～6份；稳定剂1～3份；抗氧化剂0.5～1.0份。其中，所述填充剂为石棉与陶土的混合物，且石棉和陶土的重量比为1:4；所述润滑剂为硬脂酸和白油组合，二者的重量比例为4:1；所述稳定剂为一苯基二异辛基亚磷酸酯；所述抗氧化剂为抗氧化剂1016。
本实施例中，所述隔热保温层为硬泡聚氨酯复合交联聚乙烯材料制成。所述隔热保温层的硬泡聚氨酯复合交联聚乙烯材料由20～25份重量份的硬质聚氨酯泡沫和4～5份重量份的聚乙烯闭孔泡沫通过红外线波技术粘合在一起。
本实施例中，所述外保温防护层为无卤聚丙烯树脂材料。该无卤聚丙烯树脂材料按重量份计包括的组分有：聚丙烯30～45份、阻燃剂5～9份、抗静电剂5-8份、润滑剂2～5份、抗氧化剂CA1～3份、消泡剂1～2份。其中，所述阻燃剂包括超支化大分子阻燃型成炭剂和聚磷酸铵，所述超支化大分子阻燃型成炭剂和聚磷酸铵的重量比为1:1；所述抗静电剂为乙炔炭黑，所述润滑剂也为硬脂酸和白油组合，二者的重量比例为4:1。
实施例2：
本实施例提供一种制备实施例1中所述的保温隔热PP管的制备方法，包括的步骤如下：
S1：制备PP层：按重量份撑取：聚丙烯80份、PE 20份、填充剂20份、阻燃剂15份、增塑剂份、润滑剂4份；稳定剂1份；抗氧化剂0.5份。其中，所述填充剂为石棉与陶土的混合物，且石棉和陶土的重量比为1:4；所述润滑剂为硬脂酸和白油组合，二者的重量比例为4:1；所述稳定剂为一苯基二异辛基亚磷酸酯；所述抗氧化剂为抗氧化剂1016。将聚丙烯和PE除湿干燥至含水量小于0.3％；于开炼机中热熔混合，然后于挤出机中挤出，挤出工艺参数为：机头压力为9.5MPa；机筒分为四段，温度依次为180℃、190℃、200℃、210℃；模头区分为4段，温度依次为215℃、220℃、225℃、230℃，挤出机转速为30rad/min，牵引速度为100cm/min；然后通过喷淋冷却后牵引切割，获得PP层，备用；
S2：制备隔热保温层：取硬质聚氨酯泡沫和聚乙烯闭孔泡沫，二者重量比为5:1，充分混合均匀，采用红外线波技术使其充分粘合在一起，制成作为隔热保温层的硬泡聚氨酯复合交联聚乙烯材料，备用；
S3：包覆隔热保温层：将步骤S2中制备的硬泡聚氨酯复合交联聚乙烯材料黏贴或热熔贴合在步骤S1中制备的PP层上；
S4：包覆隔热保温层：将步骤S2中包覆了隔热保温层的PP管材作为芯材。按重量份称取：聚丙烯30份、阻燃剂5份、抗静电剂5份、润滑剂2份、抗氧化剂CA1份、消泡剂1份。其中，所述阻燃剂包括超支化大分子阻燃型成炭剂和聚磷酸铵，所述超支化大分子阻燃型成炭剂和聚磷酸铵的重量比为1:1；所述抗静电剂为乙炔炭黑，所述润滑剂也为硬脂酸和白油组合，二者的重量比例为4:1。通过挤出机将外保温防护层的无卤聚丙烯树脂材料挤出包覆在PP管芯材上，挤出温度为200℃，牵引速度为100cm/min，获得完成的保温隔热pp管。
实施例3：
本实施例也是一种制备实施例1中所述的保温隔热PP管的制备方法，
其中，制备PP层各组份按重量份计为：聚丙烯100份、PE 40份、填充剂30份、阻燃剂20份、增塑剂12份、润滑剂6份；稳定剂3份；抗氧化剂1.0份。隔热保温层各组份按重量份计为：聚丙烯45份、阻燃剂9份、抗静电剂8份、润滑剂5份、抗氧化剂CA 3份、消泡剂2份。其余条件均与实施例2相同。
实施例4：对比例
采用常规方式，取实施例2和实施例3中所制备的保温隔热PP管和市场购买的普通PP管分别进行保温性能测试，并进行对比，结果如表1所示：
表1.保温隔热PP管保温性能测试结果
Figure BDA0002212064040000061
由表1可以看出，本发明工艺生产的保温隔热PP管与普通的PP管相比较，保温性能高出5～10倍，保温效果良好，保证管体使用环境温度，效果突出。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的。此外，应当理解，虽然本说明书按照实施方式加以描述，但并非只包含一个的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (10)

1.一种保温隔热PP管，其特征在于：由内向外依次包括PP层、隔热保温层和外保温防护层；所述PP层的组份按重量份计包括：聚丙烯80～100份、PE 20～40份、填充剂20～30份、阻燃剂15～20份、增塑剂8～12份、润滑剂4～6份；稳定剂1～3份；抗氧化剂0.5～1.0份；隔热保温层为硬泡聚氨酯复合交联聚乙烯材料；所述外保温防护层为无卤聚丙烯树脂材料。
2.根据权利要求1所述的保温隔热PP管，其特征在于：所述PP层的填充剂为石棉与陶土的混合物，且石棉和陶土的重量比为1:4。
3.根据权利要求1所述的保温隔热PP管，其特征在于：所述PP层的润滑剂为硬脂酸和白油组合，二者的重量比例为4:1。
4.根据权利要求1所述的保温隔热PP管，其特征在于：所述PP层的稳定剂为一苯基二异辛基亚磷酸酯，所述抗氧化剂为抗氧化剂1016。
5.根据权利要求1所述的保温隔热PP管，其特征在于：所述隔热保温层的硬泡聚氨酯复合交联聚乙烯材料由20～25份重量份的硬质聚氨酯泡沫和4～5份重量份的聚乙烯闭孔泡沫通过红外线波技术粘合在一起制成。
6.根据权利要求1所述的保温隔热PP管，其特征在于：所述外保温防护层的无卤聚丙烯树脂材料按重量份计包括的组分有：聚丙烯30～45份、阻燃剂5～9份、抗静电剂5～8份、润滑剂2～5份、抗氧化剂CA 1～3份、消泡剂1～2份。
7.根据权利要求6所述的保温隔热PP管，其特征在于：所述阻燃剂包括超支化大分子阻燃型成炭剂和聚磷酸铵，所述超支化大分子阻燃型成炭剂和聚磷酸铵的重量比为1:1。
8.根据权利要求6所述的保温隔热PP管，其特征在于：所述抗静电剂为乙炔炭黑，所述润滑剂为硬脂酸和白油组合，二者的重量比例为4:1。
9.根据权利要求1所述的保温隔热PP管，其特征在于：其制备方法包括如下步骤：
S1：制备PP层：按配方重量份撑取制备PP层的各组份，并将聚丙烯和PE除湿干燥至含水量小于0.3%；于开炼机中热熔混合，然后于挤出机中挤出，挤出工艺参数为：机头压力为9.5MPa；机筒分为四段，温度依次为180℃、190℃、200℃、210℃；模头区分为4段，温度依次为215℃、220℃、225℃、230℃，挤出机转速为30rad/min，牵引速度为100cm/min；然后通过喷淋冷却后牵引切割，获得PP层，备用；
S2：制备隔热保温层：取硬质聚氨酯泡沫和聚乙烯闭孔泡沫，二者重量比为5:1，充分混合均匀，采用红外线波技术使其充分粘合在一起，制成作为隔热保温层的硬泡聚氨酯复合交联聚乙烯材料，备用；
S3：包覆隔热保温层：将步骤S2中制备的硬泡聚氨酯复合交联聚乙烯材料黏贴或热熔贴合在步骤S1中制备的PP层上；
S4：包覆隔热保温层：将步骤S2中包覆了隔热保温层的PP管材作为芯材，通过挤出机将外保温防护层的无卤聚丙烯树脂材料挤出包覆在PP管芯材上，获得完成的保温隔热pp管。
10.根据权利要求9所述的保温隔热PP管，其特征在于：步骤S4外保温防护层的挤出温度为185～220℃，牵引速度为100cm/min。
CN201910901818.3A 2019-09-23 2019-09-23 一种保温隔热pp管及其制备工艺 Pending CN110712396A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910901818.3A CN110712396A (zh) 2019-09-23 2019-09-23 一种保温隔热pp管及其制备工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910901818.3A CN110712396A (zh) 2019-09-23 2019-09-23 一种保温隔热pp管及其制备工艺

Publications (1)

Publication Number Publication Date
CN110712396A true CN110712396A (zh) 2020-01-21

Family

ID=69210019

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910901818.3A Pending CN110712396A (zh) 2019-09-23 2019-09-23 一种保温隔热pp管及其制备工艺

Country Status (1)

Country Link
CN (1) CN110712396A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112457594A (zh) * 2020-12-05 2021-03-09 勇气模具塑胶(苏州)有限公司 一种用于冰箱门壳的复合材料及其制备方法
CN112724538A (zh) * 2020-12-28 2021-04-30 湖北恒祥科技股份有限公司 一种空调风管用隔热保温泡沫橡胶材料及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552291A (zh) * 2013-11-06 2014-02-05 上海译科实业有限公司 一种阻隔性发泡软管及其制备方法
CN206221903U (zh) * 2016-11-22 2017-06-06 陈兴旺 一种复合保温管材
CN108165191A (zh) * 2017-12-28 2018-06-15 张家港康得新光电材料有限公司 一种泡棉及其制备方法与应用
CN108286628A (zh) * 2018-01-31 2018-07-17 成都新柯力化工科技有限公司 一种低透光率的ppr复合塑料管材及制备方法
CN108409972A (zh) * 2018-03-12 2018-08-17 苏州安鸿泰新材料有限公司 磷氮硫大分子成炭剂及其制备方法和应用
DE202017107801U1 (de) * 2017-12-21 2019-03-25 Rehau Ag + Co Thermisch gedämmtes Rohr
CN110054840A (zh) * 2019-05-24 2019-07-26 华北理工大学 一种新型高含氮量超支化三嗪系成炭剂及其制备方法和阻燃复合材料

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552291A (zh) * 2013-11-06 2014-02-05 上海译科实业有限公司 一种阻隔性发泡软管及其制备方法
CN206221903U (zh) * 2016-11-22 2017-06-06 陈兴旺 一种复合保温管材
DE202017107801U1 (de) * 2017-12-21 2019-03-25 Rehau Ag + Co Thermisch gedämmtes Rohr
CN108165191A (zh) * 2017-12-28 2018-06-15 张家港康得新光电材料有限公司 一种泡棉及其制备方法与应用
CN108286628A (zh) * 2018-01-31 2018-07-17 成都新柯力化工科技有限公司 一种低透光率的ppr复合塑料管材及制备方法
CN108409972A (zh) * 2018-03-12 2018-08-17 苏州安鸿泰新材料有限公司 磷氮硫大分子成炭剂及其制备方法和应用
CN110054840A (zh) * 2019-05-24 2019-07-26 华北理工大学 一种新型高含氮量超支化三嗪系成炭剂及其制备方法和阻燃复合材料

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
吴培熙: "《塑料制品生产工艺手册》", 28 February 1991, 北京：化学工业出版社 *
徐冬梅: "《塑料挤出工就业百分百》", 31 January 2017, 北京：印刷工业出版社 *
朱岩: "《互联网+建筑 数字经济下的智慧建筑行业变革》", 30 April 2018, 北京：知识产权出版社 *
李基洪: "《包装技术问答》", 31 January 1995, 北京：中国轻工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112457594A (zh) * 2020-12-05 2021-03-09 勇气模具塑胶(苏州)有限公司 一种用于冰箱门壳的复合材料及其制备方法
CN112724538A (zh) * 2020-12-28 2021-04-30 湖北恒祥科技股份有限公司 一种空调风管用隔热保温泡沫橡胶材料及其制备方法

Similar Documents

Publication Publication Date Title
CN110712396A (zh) 一种保温隔热pp管及其制备工艺
AU2018289545B2 (en) Coated closed-cell foam tube insulations and methods for producing the same
CN101709810B (zh) 防腐保温复合管道低温预制工艺
CN106641585B (zh) 一种家装用ppr保温复合管及其制备方法
CN102052543A (zh) 一种复合pe粉末热喷涂石油天然气管道防腐涂层
CN108003613B (zh) 一种耐醇尼龙及其制备方法
CN110594531B (zh) 硬质聚氨酯喷涂聚乙烯缠绕预制直埋保温管及其制备方法
CN205118573U (zh) 防冻复合管
CN102705633A (zh) 高剪切力三层聚烯烃防腐保温钢管及其制作工艺
CN114573895A (zh) 一种保温一体耐热聚乙烯管材及其制备方法
CN106321200A (zh) 一种scr尿素管用主体管路及scr尿素管
CN205877444U (zh) 多功能非金属复合管
EP1336064B1 (en) Thermal insulation metallocene polyethylene foam and manufacturing method therefor
CN101526164B (zh) 一种多层保温管及其制造方法
CN201096235Y (zh) 带表皮发泡层的塑料管材
CN207034420U (zh) 一种排潮型聚氨酯保温管
CN207179042U (zh) 一种新型保温管
CN208024965U (zh) 一种高密度聚乙烯聚氨酯内减阻保温管
CN206329849U (zh) 柔性聚氨酯保温管件弯头
CN207245824U (zh) 摩托车排气管用钢管
CN110667194A (zh) 一种耐温防冻pp管及其制备工艺
CN206669141U (zh) 一种带有电伴热带的保温复合软管结构
CN201059084Y (zh) 免维护钢塑复合输电线路塔
CN206429797U (zh) 带直管段无缝聚乙烯预制直埋保温弯头
CN205806714U (zh) 一种温泉专用管

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200121

RJ01 Rejection of invention patent application after publication