CN114835973B - 基于eva废料制备的eva复合发泡材料及其制备工艺 - Google Patents

基于eva废料制备的eva复合发泡材料及其制备工艺 Download PDF

Info

Publication number
CN114835973B
CN114835973B CN202210610467.2A CN202210610467A CN114835973B CN 114835973 B CN114835973 B CN 114835973B CN 202210610467 A CN202210610467 A CN 202210610467A CN 114835973 B CN114835973 B CN 114835973B
Authority
CN
China
Prior art keywords
eva
waste
portions
maleic anhydride
eva waste
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
CN202210610467.2A
Other languages
English (en)
Other versions
CN114835973A (zh
Inventor
易才
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.)
Quanzhou Benyuan Kangjian Shoe Material Technology Co ltd
Original Assignee
Quanzhou Benyuan Kangjian Shoe Material 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 Quanzhou Benyuan Kangjian Shoe Material Technology Co ltd filed Critical Quanzhou Benyuan Kangjian Shoe Material Technology Co ltd
Priority to CN202210610467.2A priority Critical patent/CN114835973B/zh
Publication of CN114835973A publication Critical patent/CN114835973A/zh
Application granted granted Critical
Publication of CN114835973B publication Critical patent/CN114835973B/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
    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • 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
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/06—CO2, N2 or noble gases
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/08—Supercritical fluid
    • 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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—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
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • 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
    • C08J2453/00—Characterised 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
    • C08J2453/02—Characterised 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
    • 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
    • C08K3/34—Silicon-containing 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

本发明涉及一种基于EVA废料制备的EVA复合发泡材料及其制备工艺，具体包括以下步骤：S1改性EVA废料：往螺杆挤出机中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料；S2挤出造粒；S3、交联反应得EVA底坯；S4、超临界发泡。本发明预先利用热塑性淀粉和马来酸酐接枝HDPE对EVA废料进行改性处理，通过马来酸酐接枝HDPE使得热塑性淀粉与EVA废料相容且增强热塑性淀粉对EVA废料的塑化改性，改善内聚力和机械性能，同时通过过氧化二异丙苯交联剂很好地交联EVA树脂、SEBS以及改性EVA废料中的马来酸酐接枝HDPE，增强发泡材料的机械性能和抗热收缩性能。

Description

基于EVA废料制备的EVA复合发泡材料及其制备工艺
技术领域
本发明涉及鞋材技术领域，具体涉及一种基于EVA废料制备的EVA复合发泡材料及其制备工艺。
背景技术
随着近年来EVA原料应用面的不断扩大，EVA废弃料的数量不断增加，而这些废弃料里已经含有包括填充料、色料、橡塑添加剂在内的各种辅助材料，EVA废料不容易单独被EVA熔化，并且即使其在高温下溶解也不具有符合要求。如何在确保制品技术指标不受影响的前提下，将再生的EVA原料应用到橡塑合成交联体中，为资源再生、减少污染、降低制品成本做贡献，在业界成了一个难题。
发明内容
本发明目的在于提供一种基于EVA废料制备的EVA复合发泡材料及其制备工艺，高回弹、力学性能优。
为实现上述发明目的，本发明采用的技术方案是：
基于EVA废料制备EVA复合发泡材料的工艺，具体包括以下步骤：
S1、改性EVA废料：往螺杆挤出机A中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料；
S2、挤出造粒：往螺杆挤出机B中投入EVA树脂、SEBS、滑石粉、活化氧化锌、硬脂酸、交联剂以及步骤S1的改性废料，共混熔融，挤出造粒得EVA母粒；
S3、交联反应：在成型模具中投入步骤S2的EVA母粒，合模加热加压制得EVA底坯；
S4、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体并升温加压进行超临界发泡，然后快速泄压得到EVA复合发泡材料。
优选地，所述步骤S2中各组分的重量份数分别为EVA树脂20-40份、SEBS 10-15份、滑石粉3-5份、活性氧化锌0.8-1.5份、硬脂酸1-2份、交联剂0.5-1.5份、改性EVA废料20-30份。
优选地，所述交联剂为过氧化二异丙苯。
优选地，所述步骤S1中的EVA废料、热塑性淀粉和马来酸酐接枝HDPE的投料质量比为20～30:4～6:2～3。
优选地，所述步骤S3中的模压温度为160℃～170℃，模压时间为20min～30min。
优选地，所述超临界流体为二氧化碳和/或氮气。
优选地，所述步骤S4中的超临界发泡温度为180℃～200℃，压力为20MPa～30MPa。
优选地，所述步骤S4中的泄压速率为10MPa/s～20MPa/s。
本发明还提供一种采用上述工艺制得的EVA复合发泡材料。
与现有技术相比，本发明具有以下有益效果：
本发明EVA复合发泡材料以EVA树脂、SEBS和EVA废料为主料，且预先利用热塑性淀粉和马来酸酐接枝HDPE对EVA废料进行改性处理，通过马来酸酐接枝HDPE使得热塑性淀粉与EVA废料相容且增强热塑性淀粉对EVA废料的塑化改性，改善内聚力和机械性能，以使得EVA废料能够回收利用作为EVA复合发泡材料之一，同时通过过氧化二异丙苯交联剂很好地交联EVA树脂、SEBS以及改性EVA废料中的马来酸酐接枝HDPE，增强发泡材料的机械性能和抗热收缩性能。
具体实施方式
实施例1
本实施例提供一种基于EVA废料制备EVA复合发泡材料的工艺，包括以下步骤：
S1、改性EVA废料：往螺杆挤出机A中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料，EVA废料、热塑性淀粉和马来酸酐接枝HDPE的投料质量比为20:4:3。
S2、挤出造粒：往螺杆挤出机B中投入EVA树脂7350、SEBS、滑石粉、活化氧化锌、硬脂酸、过氧化二异丙苯以及步骤S1的改性废料，共混熔融，挤出造粒得EVA母粒；各组分的重量份数分别为EVA树脂30份、SEBS 10份、滑石粉3份、活性氧化锌1.5份、硬脂酸2份、过氧化二异丙苯1.5份、改性EVA废料30份。
S3、交联反应：在成型模具中投入步骤S2的EVA母粒，合模加热加压制得EVA底坯，模压温度为165℃，模压时间为25min；
S4、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体二氧化碳并升温加压进行超临界发泡，温度为180，压力为30MPa，然后以10MPa/s的泄压速率快速泄压得到EVA复合发泡材料。
实施例2
本实施例提供一种基于EVA废料制备EVA复合发泡材料的工艺，包括以下步骤：
S1、改性EVA废料：往螺杆挤出机A中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料，EVA废料、热塑性淀粉和马来酸酐接枝HDPE的投料质量比为30:6:2。
S2、挤出造粒：往螺杆挤出机B中投入EVA树脂7470、SEBS、滑石粉、活化氧化锌、硬脂酸、过氧化二异丙苯以及步骤S1的改性废料，共混熔融，挤出造粒得EVA母粒；各组分的重量份数分别为EVA树脂25份、SEBS 15份、滑石粉5份、活性氧化锌1份、硬脂酸1份、过氧化二异丙苯0.5份、改性EVA废料25份。
S3、交联反应：在成型模具中投入步骤S2的EVA母粒，合模加热加压制得EVA底坯，模压温度为160℃，模压时间为30min；
S4、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体氮气并升温加压进行超临界发泡，温度为200℃，压力为20MPa，然后以20MPa/s的泄压速率快速泄压得到EVA复合发泡材料。
实施例3
本实施例提供一种基于EVA废料制备EVA复合发泡材料的工艺，包括以下步骤：
S1、改性EVA废料：往螺杆挤出机A中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料，EVA废料、热塑性淀粉和马来酸酐接枝HDPE的投料质量比为25:5:2.5。
S2、挤出造粒：往螺杆挤出机B中投入EVA树脂7470、SEBS、滑石粉、活化氧化锌、硬脂酸、交联剂以及步骤S1的改性废料，共混熔融，挤出造粒得EVA母粒；各组分的重量份数分别为EVA树脂40份、SEBS 12份、滑石粉4份、活性氧化锌0.8份、硬脂酸2份、交联剂1.2份、改性EVA废料20份。所述交联剂为过氧化二异丙苯。
S3、交联反应：在成型模具中投入步骤S2的EVA母粒，合模加热加压制得EVA底坯，模压温度为170℃，模压时间为20min；
S4、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体二氧化碳并升温加压进行超临界发泡，温度为190℃，压力为25MPa，然后以15MPa/s的泄压速率快速泄压得到EVA复合发泡材料。
对比例1
该对比例1与实施例3的区别仅在于：EVA废料不预先改性，具体为：
S1、挤出造粒：往螺杆挤出机中投入EVA树脂、SEBS、滑石粉、活化氧化锌、硬脂酸、交联剂、EVA废料、热塑性淀粉和马来酸酐接枝HDPE，共混熔融，挤出造粒得EVA母粒；各组分的重量份数与实施例3相同。
S2、交联反应：在成型模具中投入步骤S1的EVA母粒，合模加热加压制得EVA底坯，模压温度为160℃，模压时间为30min；
S3、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体氮气并升温加压进行超临界发泡，温度为200℃，压力为20MPa，然后以20MPa/s的泄压速率快速泄压得到EVA复合发泡材料。
对比例2
该对比例2与实施例3的区别仅在于：步骤S1中不加入马来酸酐接枝HDPE。
对比例3
该对比例3与实施例3的区别仅在于：所述交联剂为硫磺。
分别取上述实施例1-3(以下简称L1-L3)和对比例1-3(以下简称D1-D3)制得的EVA复合发泡材料进行物性测试，测试结果参见表1。
L1 L2 L3 D1 D2 D3 检测标准
永久压缩形变％ 36 38 34 38 40 42 HG/T 2876
热收缩％ 1.6 1.8 1.8 2.6 2.2 2.9 HG/T 2874
回弹性％ 52 55 54 48 51 52 ASTM D2632-01
拉伸强度MPa 24.2 25.1 24.8 17.9 19.5 15.4 GB/T 528-2009
断裂伸长率％ 312 338 320 192 209 178 GB/T 528-2009
以上显示和描述了本发明创造的基本原理和主要特征及本发明的优点，本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明创造精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内，本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (6)

1.基于EVA废料制备EVA复合发泡材料的工艺，其特征在于，具体包括以下步骤：
S1、改性EVA废料：往螺杆挤出机A中投入EVA废料、热塑性淀粉和马来酸酐接枝HDPE共混熔融挤出得到改性EVA废料，EVA废料、热塑性淀粉和马来酸酐接枝HDPE的投料质量比为20～30:4～6:2～3；
S2、挤出造粒：往螺杆挤出机B中投入EVA树脂、SEBS、滑石粉、活化氧化锌、硬脂酸、交联剂以及步骤S1的改性废料，共混熔融，挤出造粒得EVA母粒；
S3、交联反应：在成型模具中投入步骤S2的EVA母粒，合模加热加压制得EVA底坯；
S4、超临界发泡：将冷却后的EVA底坯置于高压反应釜中，通入超临界流体并升温加压进行超临界发泡，然后快速泄压得到EVA复合发泡材料；
各组分的重量份数分别为EVA树脂20-40份、SEBS 10-15份、滑石粉3-5份、活性氧化锌0.8-1.5份、硬脂酸1-2份、交联剂0.5-1.5份、改性EVA废料20-30份，所述交联剂为过氧化二异丙苯。
2.根据权利要求1所述的基于EVA废料制备EVA复合发泡材料的工艺，其特征在于：所述步骤S3中的模压温度为160℃～170℃，模压时间为20min～30min。
3.根据权利要求1所述的基于EVA废料制备EVA复合发泡材料的工艺，其特征在于：所述超临界流体为二氧化碳和/或氮气。
4.根据权利要求1所述的基于EVA废料制备EVA复合发泡材料的工艺，其特征在于：所述步骤S4中的超临界发泡温度为180℃～200℃，压力为20MPa～30MPa。
5.根据权利要求1所述的基于EVA废料制备EVA复合发泡材料的工艺，其特征在于：所述步骤S4中的泄压速率为10MPa/s～20MPa/s。
6.一种采用如权利要求1至5任一项所述的工艺制得的EVA复合发泡材料。
CN202210610467.2A 2022-05-31 2022-05-31 基于eva废料制备的eva复合发泡材料及其制备工艺 Active CN114835973B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210610467.2A CN114835973B (zh) 2022-05-31 2022-05-31 基于eva废料制备的eva复合发泡材料及其制备工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210610467.2A CN114835973B (zh) 2022-05-31 2022-05-31 基于eva废料制备的eva复合发泡材料及其制备工艺

Publications (2)

Publication Number Publication Date
CN114835973A CN114835973A (zh) 2022-08-02
CN114835973B true CN114835973B (zh) 2023-09-08

Family

ID=82571344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210610467.2A Active CN114835973B (zh) 2022-05-31 2022-05-31 基于eva废料制备的eva复合发泡材料及其制备工艺

Country Status (1)

Country Link
CN (1) CN114835973B (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110845787A (zh) * 2019-11-30 2020-02-28 晋江市志协鞋塑有限公司 高回弹性改性eva材料、高回弹性eva鞋底及其制作方法
CN110845820A (zh) * 2019-12-16 2020-02-28 泉州师范学院 一种轻质高回弹sebs发泡鞋底的制备方法
CN112048185A (zh) * 2020-08-27 2020-12-08 茂泰(福建)鞋材有限公司 皮革屑改性发泡鞋中底及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110845787A (zh) * 2019-11-30 2020-02-28 晋江市志协鞋塑有限公司 高回弹性改性eva材料、高回弹性eva鞋底及其制作方法
CN110845820A (zh) * 2019-12-16 2020-02-28 泉州师范学院 一种轻质高回弹sebs发泡鞋底的制备方法
CN112048185A (zh) * 2020-08-27 2020-12-08 茂泰(福建)鞋材有限公司 皮革屑改性发泡鞋中底及其制备方法

Also Published As

Publication number Publication date
CN114835973A (zh) 2022-08-02

Similar Documents

Publication Publication Date Title
CN109401243B (zh) 一种高韧生物基聚乳酸/反应型改性橡胶热塑性硫化胶共混材料及其二次反应挤出制备方法
CN112812515A (zh) 一种可降解发泡材料及其制备方法
CN107936321A (zh) 一种射出发泡橡胶材料及其制备方法
CN112708163A (zh) 一种高回弹生物可降解聚酯微发泡异型材的制备方法
CN107868294A (zh) 一种高硬度橡胶发泡材料及其制备方法
CN114835973B (zh) 基于eva废料制备的eva复合发泡材料及其制备工艺
CN111087705A (zh) 发泡组合物、发泡材料及其制备方法、用途
CN104072880B (zh) 一种tpo发泡微球的制备方法以及应用
CN109251389B (zh) 光辐照交联超高分子量聚乙烯注塑复合材料的制备方法
US6828384B2 (en) Thermoplastic olefin composition, process of making the composition, articles formed from the composition, and a method of forming articles therefrom
CN112852056A (zh) 一种用于发泡的聚丙烯母粒及其制备方法与应用
CN114605623B (zh) 一种柔性pet基共聚酯及其制备的珠粒泡沫
CN107987306B (zh) 一种流体辅助注射制备橡胶发泡材料的方法及其制品
CN114874594B (zh) 一种高回弹吸波发泡材料及其制备方法
CA1039023A (en) Process of preparing shaped elastomeric articles
WO1996025281A1 (en) Polymeric foam preparation
CN104497343A (zh) 一种聚甲基丙烯酰亚胺微发泡材料的制备方法及其产品
CN113201211A (zh) 一种复合动态交联聚乳酸/天然橡胶/淀粉弹性体及其制备方法
CN112745523A (zh) 一种高效汽车内饰用聚氨酯材料熟化工艺
KR101831529B1 (ko) 발포용 폴리프로필렌 수지 조성물 및 이로부터 제조된 성형품
CN112795174A (zh) 一种汽车内饰聚氨酯自动发泡一体化工艺
CN111283946A (zh) 一种在模内发泡成型的物料发泡方法
CN112321932A (zh) 一种环保高韧性聚乙烯排水管道的生产工艺
CN115466507B (zh) 一种低成本的尼龙弹性体发泡鞋底及其制备方法
CN109016554A (zh) 一种袋用吹塑薄膜的生产工艺

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
GR01 Patent grant
GR01 Patent grant