CN113386430A - 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法 - Google Patents

一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法 Download PDF

Info

Publication number
CN113386430A
CN113386430A CN202110647799.3A CN202110647799A CN113386430A CN 113386430 A CN113386430 A CN 113386430A CN 202110647799 A CN202110647799 A CN 202110647799A CN 113386430 A CN113386430 A CN 113386430A
Authority
CN
China
Prior art keywords
thermoplastic elastomer
polyvinylidene fluoride
anticorrosive
composite film
extruder
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
CN202110647799.3A
Other languages
English (en)
Inventor
王庆昭
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202110647799.3A priority Critical patent/CN113386430A/zh
Publication of CN113386430A publication Critical patent/CN113386430A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0011Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • B32B27/08Layered 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 of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/714Inert, i.e. inert to chemical degradation, corrosion
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised 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
    • C08J2323/16Ethene-propene or ethene-propene-diene copolymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2353/00Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2353/02Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised 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
    • C08J2423/04Homopolymers or copolymers of ethene
    • C08J2423/08Copolymers of ethene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本发明涉及防腐聚偏氟乙烯制备领域,尤其涉及一种防腐聚偏氟乙烯复合膜的制备方法;其热塑性弹性体改性和共挤成膜制备得到防腐聚偏氟乙烯热塑性弹性体复合膜;本发明制备的复合膜能够采用结构胶与基体材料粘结,粘结强度大于材料本身。此外,改性TPE层的弹性性能大大的改善了PVDF薄膜的抗疲劳、冲击性能,使得PVDF复合膜在防腐领域的应用更加广泛多样化;其结构合理,应用环境友好。

Description

一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法
技术领域:
本发明涉及防腐聚偏氟乙烯制备领域,尤其涉及一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法。
背景技术:
各种设备、设施的腐蚀与控制和防护是一个永恒的课题,腐蚀现象由来己久,随着工业化的发展这个问题愈加突出,由于设备和设施的绝大部分零件或构件都是由各种金属材料加工制作的,而多种金属材料在空气、水和各种介质中均会产生不同程度的腐蚀现象,致使零件失效,引发设备故障或事故,造成严重后果。因此,找到一个好的防腐措施或方法保护设备,对各种工业化产业的可持续发展具有重大意义。
目前设备的防腐措施主要有防腐涂层,缓蚀剂,表面处理及改性,添加防腐内衬等等。其中喷涂防腐涂层是应用最普遍,最经济的防腐措施。但是,无论是溶剂型涂料还是熔融型涂料都会在涂层形成过程中由于小分子溶剂的逃逸和涂层材料的冷却结晶出现针孔,难以保证涂膜的完整性,这些针孔成为腐蚀的起始点。聚偏氟乙烯(PVDF)具有突出耐腐蚀性、耐氧化性,优异的耐化学药品性,良好的耐油性、耐有机溶剂性,在防腐领域中有着广泛的应用。且PVDF的加工窗口很宽,适用于热塑性材料加工的各种加工方法,例如,挤出成型、注塑成型。因此,PVDF比一般的氟碳材料有着更为多样化的应用。但是,目前还未见将其以薄膜形式很好的应用到设备的防腐领域,主要是因为PVDF特殊的分子结构使得PVDF很难与基体材料有效的粘合,表面处理可以改善这种状况,但会产生大量的废酸环境污染严重。因此,寻求设计一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法具有良好的经济效益和社会效益。
发明内容:
本发明的目的在于克服现有技术存在的缺点,寻求设计一种防腐聚偏氟乙烯热塑性弹性体复合膜的制备方法,通过加入改性剂使复合膜与基材紧密粘合。
本发明涉及的防腐聚偏氟乙烯热塑性弹性体复合膜的制备工艺,主要在双层符合膜生产装置中进行,包括以下步骤:
(1)热塑性弹性体改性
将热塑性弹性体(TPE)与改性剂混合成混合物,其中热塑性弹性体的含量为90-98%,改性剂的含量为2-10%;将上述混合物在双螺杆造粒生产装置上熔融挤出成颗粒状的改性热塑性弹性体;其中热塑性弹性体为苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)、苯乙烯-丁二烯-苯乙烯嵌段共聚物加氢饱和产物(SEBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物加氢饱和产物(SEPS)、乙烯丙烯酸共聚物(EAA)、三元乙丙橡胶(EPDM)、乙烯醋酸乙烯酯共聚物(EVA)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)和苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)中的一种或多种;改性剂为乙烯-丙烯酸丁酯-甲基丙烯酸缩水甘油酯共聚物(PTW)、乙烯-醋酸乙烯酯共聚物(EVM)中的一种或多种。
(2)共挤成膜
将聚偏氟乙烯原料放入第一挤出机,设置温度为100~270℃,设置第一挤出机的螺杆长径比为35:1-25:1,挤出得到聚偏氟乙烯熔体,将步骤(1)制得的改性热塑性弹性体放入第二挤出机,设置温度为100~270℃,设置第一挤出机的螺杆长径比为35:1-25:1,挤出得到改性热塑性弹性体熔体;将得到的聚偏氟乙烯熔体和改性热塑性弹性体熔体通过共挤模具挤出进入三辊压延机进行压延定型成共挤粗膜,将定型的共挤粗膜进入卷绕机卷绕成辊得到防腐聚偏氟乙烯热塑性弹性体复合膜。
本发明涉及的网格状花纹膜的形状为一大一小的两个正六边形相间排列。
本发明制得的防腐聚偏氟乙烯热塑性弹性体复合膜厚度为80-1000μm,幅宽为1-500cm,其中聚偏氟乙烯层厚度为50-970μm,热塑性弹性体层厚度为30-200μm。
本发明涉及的防腐聚偏氟乙烯热塑性弹性体复合膜通过丙烯酸类双组份胶、环氧树脂类双组份结构胶或聚氨酯类等结构胶黏剂与基材粘结,以便增强基材的防腐能力。
本发明涉及的双层复合膜的生产装置,其主体结构包括第一挤出机、第二挤出机、共挤模具、三辊压延机和卷绕机。
本发明涉及的第一挤出机和第二挤出机为单螺杆或者双螺杆挤出机。
本发明涉及的共挤模具为电加热成型模具,挤出压力为10-50Mpa。
本发明涉及的三辊压延机的上辊为带有网格状花纹延压辊,中辊和下辊为光滑压延辊,以便防腐聚偏氟乙烯热塑性弹性体复合膜的聚偏氟乙烯面呈光滑状,热塑性弹性体面呈网格状花纹膜。
上述技术方案直接带来的技术效果是通过加入改性剂改善TPE材料与PVDF材料在熔融状态下的相容性:一方面改性剂的引入使得TPE材料拥有更多支化的长链聚合烷烃,改性剂里面的小分子聚合物存在氢键、极性键与TPE里面的氢键进行氢键与氢键的物理力进行结合,这部分支化的烷烃结构可使TPE分子在熔融状态下与PVDF分子通过结构的相似达到相容,从而在复合膜中间形成一个PVDF和TPE熔融界面,PVDF里面的碳碳双键结构和氢基团与TPE里面的碳碳双键结构和氢基团存在相似结构,因此这两部分具有一定的融合性,为PVDF和TPE能够熔融共挤成复合膜提供了先决条件,解决了PVDF不能与TPE材料共挤生产复合膜的技术问题;另一方面改性剂分子中同样存在大量的极性基团,如酯基,环氧基团,这些基团的存在使得复合膜能够和绝大多数的结构胶黏剂有良好的粘接效果,极大地改善了PVDF薄膜与基体粘接性能不高的缺点。TPE面为网格状花纹膜,其形状为一大一小的两个正六边形相间排列,该花纹在纵向和横向方向上都起到增大摩擦阻力的作用。本发明制备的复合膜能够采用结构胶与基体材料粘结,粘结强度大于材料本身。此外,改性TPE层的弹性性能大大的改善了PVDF薄膜的抗疲劳、冲击性能,使得PVDF复合膜在防腐领域的应用更加广泛多样化。
附图说明:
图1为本发明涉及的防腐聚偏氟乙烯热塑性弹性体复合膜结构示意图,其中上层为聚偏氟乙烯层,下层为热塑性弹性体层。
图2为本发明涉及的复合膜中热塑性弹性体层的表面网格示意图。
图3为防腐聚偏氟乙烯热塑性弹性体复合膜的制备工艺流程图。
具体实施方式:
下面通过实施例并结合附图对本发明做进一步说明。
实施例1
本实施例涉及的双层复合膜的生产装置,其主体结构包括第一挤出机1、第二挤出机2、共挤模具3、三辊压延机4和卷绕机5。
本实施例涉及的第一挤出机1和第二挤出机2为单螺杆或者双螺杆挤出机。
本实施例涉及的共挤模具为电加热成型模具,挤出压力为10-50Mpa。
本实施例涉及的防腐聚偏氟乙烯复合膜的制备工艺,包括以下步骤:
(1)热塑性弹性体改性
将热塑性弹性体(TPE)与改性剂混合成混合物,其中热塑性弹性体的含量为90-98%,改性剂的含量为2-10%;将上述混合物在双螺杆造粒生产装置上熔融挤出成颗粒状的改性热塑性弹性体;其中热塑性弹性体为苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)、苯乙烯-丁二烯-苯乙烯嵌段共聚物加氢饱和产物(SEBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物加氢饱和产物(SEPS)、乙烯丙烯酸共聚物(EAA)、三元乙丙橡胶(EPDM)、乙烯醋酸乙烯酯共聚物(EVA)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)和苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)中的一种或多种;改性剂为乙烯-丙烯酸丁酯-甲基丙烯酸缩水甘油酯共聚物(PTW)、乙烯-醋酸乙烯酯共聚物(EVM)中的一种或多种;
(2)共挤成膜
将聚偏氟乙烯原料放入第一挤出机1,设置温度为100~270℃,设置第一挤出机1的螺杆长径比为35:1-25:1,挤出得到聚偏氟乙烯熔体,将步骤(1)制得的改性热塑性弹性体放入第二挤出机2,设置温度为100~270℃,设置第一挤出机1的螺杆长径比为35:1-25:1,挤出得到改性热塑性弹性体熔体;将得到的聚偏氟乙烯熔体和改性热塑性弹性体熔体通过共挤模具3挤出进入三辊压延机4进行压延定型成共挤粗膜,将定型的共挤粗膜进入卷绕机5卷绕成辊得到防腐聚偏氟乙烯热塑性弹性体复合膜。
本实施例涉及的网格状花纹膜的形状为一大一小的两个正六边形相间排列。
本实施例制得的防腐聚偏氟乙烯热塑性弹性体复合膜厚度为80-1000μm,幅宽为1-500cm,其中聚偏氟乙烯层厚度为50-970μm,热塑性弹性体层厚度为30-200μm。
本实施例涉及的防腐聚偏氟乙烯热塑性弹性体复合膜通过丙烯酸类双组份胶、环氧树脂类双组份结构胶或聚氨酯类等结构胶黏剂与基材粘结,以便增强基材的防腐能力。
本实施例涉及的双层复合膜的生产装置,其主体机构包括第一挤出机1、第二挤出机2、共挤模具3、三辊压延机4和卷绕机5。
本实施例涉及的第一挤出机1和第二挤出机2为单螺杆或者双螺杆挤出机。
本实施例涉及的共挤模具为电加热成型模具,挤出压力为10-50Mpa。
本实施例涉及的三辊压延机4的上辊为带有网格状花纹延压辊,中辊和下辊为光滑压延辊,以便防腐聚偏氟乙烯热塑性弹性体复合膜的聚偏氟乙烯面呈光滑状,热塑性弹性体面呈网格状花纹膜。
实施例2
将PVDF原料和改性后的SBS料,经过单螺杆挤出机挤出形成熔体,熔体经过共挤模具形成共挤复合膜。PVDF原料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃;改性SBS料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃。挤出压力设定为10Mpa,冷却,进过三辊压延机压延、定型,通过卷绕机卷取,得到PVDF层厚度为200μm,SBS层厚度为150μm,总厚度为350μm幅宽为500cm的PVDF-SBS复合膜。
实施例3
将PVDF原料和改性后的SIS料,经过单螺杆挤出机挤出形成熔体,熔体经过共挤模具形成共挤复合膜。PVDF原料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃;改性SIS料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃。挤出压力设定为10Mpa,冷却,进过三辊压延机压延、定型,通过卷绕机卷取,得到PVDF层厚度为200μm,SIS层厚度为150μm,总厚度为350μm幅宽为500cm的PVDF-SIS复合膜。
实施例4
将PVDF原料和改性后的SEBS料,经过单螺杆挤出机挤出形成熔体,熔体经过共挤模具形成共挤复合膜。PVDF原料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃;改性SEBS料挤出机螺杆长径比为30:1,四区温度分别设定为100、180、240、270℃。挤出压力设定为10Mpa,冷却,进过三辊压延机压延、定型,通过卷绕机卷取,得到PVDF层厚度为200μm,SEBS层厚度为150μm,总厚度为350μm幅宽为500cm的PVDF-SEBS复合膜。

Claims (8)

1.一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,主要在双层符合膜生产装置中进行,其特征在于包括以下步骤:
(1)热塑性弹性体改性
将热塑性弹性体(TPE)与改性剂混合成混合物,其中热塑性弹性体的含量为90-98%,改性剂的含量为2-10%;将上述混合物在双螺杆造粒生产装置上熔融挤出成颗粒状的改性热塑性弹性体;其中热塑性弹性体为苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)、苯乙烯-丁二烯-苯乙烯嵌段共聚物加氢饱和产物(SEBS)、苯乙烯-异戊二烯-苯乙烯嵌段共聚物加氢饱和产物(SEPS)、乙烯丙烯酸共聚物(EAA)、三元乙丙橡胶(EPDM)、乙烯醋酸乙烯酯共聚物(EVA)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)和苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)中的一种或多种;改性剂为乙烯-丙烯酸丁酯-甲基丙烯酸缩水甘油酯共聚物(PTW)、乙烯-醋酸乙烯酯共聚物(EVM)中的一种或多种。
(2)共挤成膜
将聚偏氟乙烯原料放入第一挤出机,设置温度为100~270℃,设置第一挤出机的螺杆长径比为35:1-25:1,挤出得到聚偏氟乙烯熔体,将步骤(1)制得的改性热塑性弹性体放入第二挤出机,设置温度为100~270℃,设置第一挤出机的螺杆长径比为35:1-25:1,挤出得到改性热塑性弹性体熔体;将得到的聚偏氟乙烯熔体和改性热塑性弹性体熔体通过共挤模具挤出进入三辊压延机进行压延定型成共挤粗膜,将定型的共挤粗膜进入卷绕机卷绕成辊得到防腐聚偏氟乙烯热塑性弹性体复合膜。
2.根据权利要求1所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的网格状花纹膜的形状为一大一小的两个正六边形相间排列。
3.根据权利要求1所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的防腐聚偏氟乙烯热塑性弹性体复合膜厚度为80-1000μm,幅宽为1-500cm,其中聚偏氟乙烯层厚度为50-970μm,热塑性弹性体层厚度为30-200μm。
4.根据权利要求1所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的防腐聚偏氟乙烯热塑性弹性体复合膜通过丙烯酸类双组份胶、环氧树脂类双组份结构胶或聚氨酯类等结构胶黏剂与基材粘结,以便增强基材的防腐能力。
5.根据权利要求1所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的双层复合膜的生产装置主体结构包括第一挤出机、第二挤出机、共挤模具、三辊压延机和卷绕机。
6.根据权利要求5所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的第一挤出机和第二挤出机为单螺杆或者双螺杆挤出机。
7.根据权利要求5所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的共挤模具为电加热成型模具,挤出压力为10-50Mpa。
8.根据权利要求5所述的防腐聚偏氟乙烯热塑性弹性体复合膜制备方法,其特征在于所述的三辊压延机的上辊为带有网格状花纹延压辊,中辊和下辊为光滑压延辊,以便防腐聚偏氟乙烯热塑性弹性体复合膜的聚偏氟乙烯面呈光滑状,热塑性弹性体面呈网格状花纹膜。
CN202110647799.3A 2021-06-10 2021-06-10 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法 Pending CN113386430A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110647799.3A CN113386430A (zh) 2021-06-10 2021-06-10 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110647799.3A CN113386430A (zh) 2021-06-10 2021-06-10 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法

Publications (1)

Publication Number Publication Date
CN113386430A true CN113386430A (zh) 2021-09-14

Family

ID=77620263

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110647799.3A Pending CN113386430A (zh) 2021-06-10 2021-06-10 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法

Country Status (1)

Country Link
CN (1) CN113386430A (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102408649A (zh) * 2011-09-21 2012-04-11 苏州禾昌聚合材料股份有限公司 用于太阳能电池防护膜的改性聚偏氟乙烯材料及制备方法
CN102653154A (zh) * 2012-03-19 2012-09-05 杭州福膜新材料科技有限公司 自粘性聚偏氟乙烯薄膜及用其制备的太阳能光伏电池背板
CN105778364A (zh) * 2016-04-25 2016-07-20 江南大学 一种热塑性弹性体背板膜及其制备方法
CN106366519A (zh) * 2016-09-19 2017-02-01 浙江凯阳新材料股份有限公司 一种聚偏氟乙烯薄膜及其制备方法
CN107199752A (zh) * 2016-03-16 2017-09-26 上海海优威新材料股份有限公司 聚偏氟乙烯复合膜及其制备方法
CN112339370A (zh) * 2020-10-28 2021-02-09 嘉兴高正新材料科技股份有限公司 一种三元乙丙橡胶与聚偏氟乙烯的复合膜及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102408649A (zh) * 2011-09-21 2012-04-11 苏州禾昌聚合材料股份有限公司 用于太阳能电池防护膜的改性聚偏氟乙烯材料及制备方法
CN102653154A (zh) * 2012-03-19 2012-09-05 杭州福膜新材料科技有限公司 自粘性聚偏氟乙烯薄膜及用其制备的太阳能光伏电池背板
CN107199752A (zh) * 2016-03-16 2017-09-26 上海海优威新材料股份有限公司 聚偏氟乙烯复合膜及其制备方法
CN105778364A (zh) * 2016-04-25 2016-07-20 江南大学 一种热塑性弹性体背板膜及其制备方法
CN106366519A (zh) * 2016-09-19 2017-02-01 浙江凯阳新材料股份有限公司 一种聚偏氟乙烯薄膜及其制备方法
CN112339370A (zh) * 2020-10-28 2021-02-09 嘉兴高正新材料科技股份有限公司 一种三元乙丙橡胶与聚偏氟乙烯的复合膜及其制备方法

Similar Documents

Publication Publication Date Title
JP3871453B2 (ja) 熱可塑性重合体組成物
CN109760377B (zh) 一种高离型性无硅复合离型膜及其制备方法
CN110183984B (zh) 生物降解封箱胶带
JP2008132699A (ja) 表面形状転写樹脂シートの製造方法
CN110815879A (zh) 一种超高分子量聚乙烯复合膜的制备方法及应用
CN101845186A (zh) 改性聚乙烯醇缩丁醛防水卷材
CN103342034A (zh) 一种高分子基宽温域阻尼复合材料及其制备方法
CN101451004A (zh) 制造复合拟纸膜的薄膜及复合拟纸膜及其生产方法
CN110205044B (zh) 生物降解封箱胶带制备方法及生物降解封箱胶带
CN112111075A (zh) 聚四氟乙烯薄膜及其制造方法
CN102423952A (zh) 防水卷材的制造方法及设备
CN115892736A (zh) 一种可生物降解的纸塑复合膜及其制备方法和应用
CN113386430A (zh) 一种防腐聚偏氟乙烯热塑性弹性体复合膜制备方法
CN101020777A (zh) 一种高导热聚丁烯盘管及其制备方法
CN1079104C (zh) 复合型聚乙烯防腐胶粘带及制造方法
CN111761913B (zh) 一种有色铝塑复合膜的制备方法
CN102504422B (zh) 一种聚乙烯膜及其制备方法
CN101596787B (zh) 一种连续制备高分子复合材料多层板材的方法
CN111844666B (zh) 一种液晶聚合物薄膜和tpx阻胶膜的同步制备方法
KR100897630B1 (ko) 폴리에틸렌테레프탈레이트의 수평 압출 방법 및 장치
CN101134832A (zh) 用于智能卡的压延基材及制备方法
EP3546539B1 (en) Roll-shaped body
CN112391103A (zh) 一种表面耐磨抗穿刺涂层及其制备方法和应用
CN102040919A (zh) 一种超强辐射交联聚乙烯热收缩胶带的制备方法
CN105820767A (zh) 一种pvc电工胶带的生产工艺

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210914