CN107269948A - 一种隔热ppr管及其制备工艺 - Google Patents

一种隔热ppr管及其制备工艺 Download PDF

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CN107269948A
CN107269948A CN201710423339.6A CN201710423339A CN107269948A CN 107269948 A CN107269948 A CN 107269948A CN 201710423339 A CN201710423339 A CN 201710423339A CN 107269948 A CN107269948 A CN 107269948A
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Prior art keywords
heat
ppr pipe
intermediate layer
layer
pipe
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王建峰
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Haining Ya Feng Plastic Industry Co Ltd
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Haining Ya Feng Plastic Industry Co Ltd
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Priority to CN201710423339.6A priority Critical patent/CN107269948A/zh
Publication of CN107269948A publication Critical patent/CN107269948A/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/123—Rigid pipes of plastics with or without reinforcement with four layers
    • 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
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/045—Hoses, i.e. flexible pipes made of rubber or flexible plastics with four or more layers without reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/06—Hoses, i.e. flexible pipes made of rubber or flexible plastics with homogeneous wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/125—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting non-inflammable or heat-resistant hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/143—Pre-insulated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本发明提供一种隔热PPR管及其制备工艺，由内到外依次包括内管、粘结层、中间层和外层，其特征在于，外层为EVA膜，中间层为聚乙烯发泡保温层，内层为PPR管，粘结层为环氧树脂胶。该隔热PPR管减少了热水输送时的热损失具有良好的耐久性，可以抵抗高温，可长久使用。

Description

一种隔热PPR管及其制备工艺
技术领域
本发明属于管材技术领域，涉及一种隔热PPR管及其制备工艺。
背景技术
聚乙烯是一种无毒，无异味的塑料，具有良好的耐撞击、耐腐蚀、抗天候性能。通常的PPR管是没有保温功能的，而且易损坏。
发明内容
本发明的目的是针对现有的技术存在上述问题，提出了一种隔热PPR管及其制备工艺，设有粘结层，使管材连接更紧密更加牢固。
一种隔热PPR管，由内到外依次包括内管、粘结层、中间层和外层，其特征在于，外层为EVA膜，中间层为聚乙烯发泡保温层，内层为PPR管，粘结层为环氧树脂胶。
进一步的，所述的聚乙烯发泡保温层厚4～7mm,PPR管厚2～4mm。
一种隔热PPR管的制备工艺：
1)分别称取中间层的原料和外层的原料，中间层的原料为：聚乙烯发泡料80重量份、AC发泡剂0.3重量份、发泡调节剂0.3重量份，外层的原料为EVA颗粒；
2)将所述PPR管放入矫直机矫直后，由第一牵引机牵出，将内管端部用橡胶塞封住，内管通过浸胶槽，浸胶槽内环氧树脂胶的温度保持在35～37℃，内管表面均匀粘上环氧树脂胶，最后将所述内管送至共挤式机头处；
3)将所述中间层的原料投入第一挤出机中，所述第一挤出机的螺杆工作温度为70～200℃，压力为15～30MPa，使得聚乙烯发泡料熔融至所述共挤式机头处，同样的，外层的原料在熔融后送至第二挤出机中；
4)将所述中间层材料在第一挤出机内挤压在PPR管上，外层材料由第二挤出机挤出附在聚乙烯发泡保温层上制得管材；
5)将所述管材送入冷却风箱定型，由第二牵引机牵出，经切割机切割后获得成型管材。
与现有技术相比，本隔热PPR管及其制备工艺的优点有：
1.中间层使用聚乙烯发泡起到保温隔热作用，而且具有耐腐蚀的功能，可长期使用。
2.外层使用EVA膜起到保护作用，良好的耐久性可以抵抗高温。
3.粘结层使管材连接更紧密更加牢固。
附图说明
图1是隔热PPR管结构示意图。
图中，1、EVA膜；2、聚乙烯发泡保温层；3、粘结层；4、PPR管。
具体实施方式
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述。
如图1所示，本发明提供一种隔热PPR管，由内到外依次包括内管、粘结层3、中间层和外层，外层为EVA膜1，中间层为聚乙烯发泡保温层2，内层为PPR管4，粘结层3为环氧树脂胶。
进一步的，所述的聚乙烯发泡保温层2厚度为4～7mm,PPR管4厚度为2～4mm。
一种隔热PPR管4的制备工艺：
1)分别称取中间层的原料和外层的原料，中间层的原料为：聚乙烯发泡料80重量份、AC发泡剂0.3重量份、发泡调节剂0.3重量份，外层的原料为EVA颗粒；
2)将所述PPR管4放入矫直机矫直后，由第一牵引机牵出，将内管端部用橡胶塞封住，内管通过浸胶槽，浸胶槽内环氧树脂胶的温度保持在35～37℃，内管表面均匀粘上环氧树脂胶，最后将所述内管送至共挤式机头处；
3)将所述中间层的原料投入第一挤出机中，所述第一挤出机的螺杆工作温度为70～200℃，压力为15～30MPa，使得聚乙烯发泡料熔融至所述共挤式机头处，同样的，外层的原料在熔融后送至第二挤出机中；
4)将所述中间层材料在第一挤出机内挤压在PPR管4上，外层材料由第二挤出机挤出附在聚乙烯发泡保温层2上制得管材；
5)将所述管材送入冷却风箱定型，由第二牵引机牵出，经切割机切割后获得成型管材。
中间层使用聚乙烯发泡起到保温隔热作用，而且具有耐腐蚀的功能，可长期使用。
外层使用EVA膜1起到保护作用，良好的耐久性可以抵抗高温。
该隔热PPR管4用于热水器，减少了热水输送时的热损失，EVA膜1起到保护作用，具有良好的耐久性，可以抵抗高温，可长久使用。

Claims (3)

1.一种隔热PPR管，由内到外依次包括内管、粘结层、中间层和外层，其特征在于，外层为EVA膜，中间层为聚乙烯发泡保温层，内层为PPR管，粘结层为环氧树脂胶。
2.根据权利要求1所述的一种隔热PPR管，其特征在于，所述的聚乙烯发泡保温层厚4～7mm,PPR管厚2～4mm。
3.一种隔热PPR管的制备工艺：
1)分别称取中间层的原料和外层的原料，中间层的原料为：聚乙烯发泡料80重量份、AC发泡剂0.3重量份、发泡调节剂0.3重量份，外层的原料为EVA颗粒；
2)将所述PPR管放入矫直机矫直后，由第一牵引机牵出，将内管端部用橡胶塞封住，内管通过浸胶槽，浸胶槽内环氧树脂胶的温度保持在35～37℃，内管表面均匀粘上环氧树脂胶，最后将所述内管送至共挤式机头处；
3)将所述中间层的原料投入第一挤出机中，所述第一挤出机的螺杆工作温度为70～200℃，压力为15～30MPa，使得聚乙烯发泡料熔融至所述共挤式机头处，同样的，外层的原料在熔融后送至第二挤出机中；
4)将所述中间层材料在第一挤出机内挤压在PPR管上，外层材料由第二挤出机挤出附在聚乙烯发泡保温层上制得管材；
5)将所述管材送入冷却风箱定型，由第二牵引机牵出，经切割机切割后获得成型管材。
CN201710423339.6A 2017-06-07 2017-06-07 一种隔热ppr管及其制备工艺 Pending CN107269948A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109016433A (zh) * 2018-07-31 2018-12-18 中裕软管科技股份有限公司 一种新型pvc水带复合发泡工艺
CN109027522A (zh) * 2018-07-27 2018-12-18 海南联塑科技实业有限公司 一种ppr给水管包覆保温层的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100814084B1 (ko) * 2007-03-02 2008-03-17 영보화학 주식회사 단열 파이프 커버 구조체
CN201377657Y (zh) * 2009-04-07 2010-01-06 苏建元 一种聚乙烯发泡保温输水管
CN204512800U (zh) * 2015-01-04 2015-07-29 杭州市农业建筑设计有限公司瓶窑分公司 新式保温热水管
CN105623038A (zh) * 2014-11-03 2016-06-01 青岛鼎益塑料机械有限公司 一种聚乙烯发泡保温管及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100814084B1 (ko) * 2007-03-02 2008-03-17 영보화학 주식회사 단열 파이프 커버 구조체
CN201377657Y (zh) * 2009-04-07 2010-01-06 苏建元 一种聚乙烯发泡保温输水管
CN105623038A (zh) * 2014-11-03 2016-06-01 青岛鼎益塑料机械有限公司 一种聚乙烯发泡保温管及其制备方法
CN204512800U (zh) * 2015-01-04 2015-07-29 杭州市农业建筑设计有限公司瓶窑分公司 新式保温热水管

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027522A (zh) * 2018-07-27 2018-12-18 海南联塑科技实业有限公司 一种ppr给水管包覆保温层的方法
CN109027522B (zh) * 2018-07-27 2020-12-25 海南联塑科技实业有限公司 一种ppr给水管包覆保温层的方法
CN109016433A (zh) * 2018-07-31 2018-12-18 中裕软管科技股份有限公司 一种新型pvc水带复合发泡工艺

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Application publication date: 20171020