CN112706503B - 一种用于pet复合膜分离回收的组合物 - Google Patents

一种用于pet复合膜分离回收的组合物 Download PDF

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CN112706503B
CN112706503B CN201911008785.6A CN201911008785A CN112706503B CN 112706503 B CN112706503 B CN 112706503B CN 201911008785 A CN201911008785 A CN 201911008785A CN 112706503 B CN112706503 B CN 112706503B
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pet composite
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CN112706503A (zh
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廖兆姣
郑文贵
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Shenzhen Daya Electronic Materials Co ltd
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    • 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
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/10Removing layers, or parts of layers, mechanically or chemically
    • 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
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/06Recovery or working-up of waste materials of polymers without chemical reactions
    • 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
    • C08J2367/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2423/06Polyethene
    • 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
    • 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
    • C08J2427/00Characterised 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
    • C08J2427/02Characterised 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
    • C08J2427/12Characterised 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
    • C08J2427/16Homopolymers or copolymers of vinylidene fluoride
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明涉及塑料制品废弃物的回收再利用技术领域,特别为一种用于PET复合膜分离回收的组合物。本发明包括氢氧化钠4‑12%、二氯甲烷8‑30%、醇类2‑10%,余量为水。本发明能够将PET复合膜各材料层进行有效分离。

Description

一种用于PET复合膜分离回收的组合物
技术领域
本发明涉及塑料制品废弃物的回收再利用技术领域,特别为一种一种用于PET复合膜分离回收的组合物。
背景技术
随着人类材料科学的日益进步,在我们的生活当中出现了越来越多具有各种功能的材料,而塑料制品作为现代工业的重要产物,由塑料延生出的各种制品层出不穷,是人类日常生活中必不可少的基础材料之一,但也正因为如此,大量的塑料制品垃圾也给人类社会带来了巨大的困扰,“白色污染”问题越来越严重。这其中根源性的问题在于人类社会对于塑料制品的回收技术远远不及塑料制品的研发制造技术,因而导致大量新的塑料制品被制造出来而难以很好地回收处理,从而大大加速了白色污染的形成。
其中,PET复合膜就属于其中一类,PET复合膜的应用层面极广,上至太阳能电池背板材料,下至日常使用的茶叶包装袋,其中都大量使用了PET复合膜,由于其在生产制造时,材料层之间多采用了胶水黏连且多层共挤的方式使得材料层之间连接十分紧密。因此就给后续的分离回收制造了极大的障碍,目前本领域的技术针对这类的复合膜仅能够做到分解,以期最大程度地降低其对环境的破坏程度,例如一项中国申请号为201810274705.0,名为一种PET膜消解方法的申请即公开了一种对PET膜无害化处理的方法,而对于将PET膜各材料层进行分离后回收再利用方面却尚为一片空白。
发明内容
本发明的目的在于:提供一种用于PET复合膜分离回收的组合物,其能够将PET复合膜各材料层进行有效分离。
本发明通过如下技术方案实现:一种用于PET复合膜分离回收的组合物,其特征在于:包括氢氧化钠4-12%、二氯甲烷8-30%、醇类2-10%,余量为水。
为了更好的实施本方案,还提供如下优化方案:
进一步的,所述醇类为甲醇、乙醇或苯甲醇。
进一步的,还包括二异丁基萘磺酸钠1-5%。
进一步的,还包括十二烷基苯碘酸钠4-5%。
进一步的,还包括乙二醇丁醚3-5%。
较之前技术而言,本发明的有益效果为:利用本申请的组合物能够轻松地将各式PET复合膜的材料层进行化学分离,分离后的各材料层即可单独加工成片料进行回收,处理操作简单,时间短,分离效果佳。
具体实施方式
下面结合说明对本发明做详细说明:
实施例1:
本实施例分离的PET复合膜具有两层材料层,包括8丝的PET层以及1丝的PVDF层(聚偏氟乙烯)。
采用的分离组合物为:氢氧化钠4%,二氯甲烷30%,乙醇5%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:16小时。
浸泡后分离程度:95%。
浸泡后组合物溶液消耗量:18%。
实施例2:
本实施例分离的PET复合膜具有两层材料层,包括15丝的PET层以及1.5丝的PVDF层(聚偏氟乙烯)。
采用的分离组合物为:氢氧化钠5%,二氯甲烷12%,甲醇2%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:13小时。
浸泡后分离程度:90%。
浸泡后组合物溶液消耗量:15%。
实施例3:
本实施例分离的PET复合膜具有两层材料层,包括16丝的PET层以及4丝的PE层(聚乙烯)。
采用的分离组合物为:氢氧化钠6%,二氯甲烷13%,苯甲醇4%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:13小时。
浸泡后分离程度:95%。
浸泡后组合物溶液消耗量:18%。
实施例4:
本实施例分离的PET复合膜具有两层材料层,包括13丝的PET层以及1.5丝的PVDF层(聚偏氟乙烯)。
采用的分离组合物为:氢氧化钠5%,二氯甲烷8%,乙醇6%,二异丁基萘磺酸钠5%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:14小时。
浸泡后分离程度:96%。
浸泡后组合物溶液消耗量:16%。
实施例5:
本实施例分离的PET复合膜具有两层材料层,包括18丝的PET层以及4丝的POE层(POE塑料)。
采用的分离组合物为:氢氧化钠5%,二氯甲烷12%,甲醇2%,乙二醇丁醚3%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:10小时。
浸泡后分离程度:98%。
浸泡后组合物溶液消耗量:18%。
实施例6:
本实施例分离的PET复合膜具有两层材料层,包括18丝的PET层以及4丝的POE层(POE塑料)。
采用的分离组合物为:氢氧化钠5%,二氯甲烷12%,甲醇2%,乙二醇丁醚5%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:10小时。
浸泡后分离程度:98.9%。
浸泡后组合物溶液消耗量:18%。
实施例7:
本实施例分离的PET复合膜具有两层材料层,包括8丝的PET层以及1丝的PVDF层(聚偏氟乙烯)。
采用的分离组合物为:氢氧化钠4%,二氯甲烷30%,乙醇5%,十二烷基苯碘酸钠4%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:16小时。
浸泡后分离程度:98.5%。
浸泡后组合物溶液消耗量:14%。
实施例8:
本实施例分离的PET复合膜具有两层材料层,包括8丝的PET层以及1丝的PVDF层(聚偏氟乙烯)。
采用的分离组合物为:氢氧化钠4%,二氯甲烷30%,乙醇5%,十二烷基苯碘酸钠5%,余量为水。
分离方法:将PET复合膜直接浸泡在组合物的水溶液中。
浸泡时间:16小时。
浸泡后分离程度:99.2%。
浸泡后组合物溶液消耗量:13%。
尽管本发明采用具体实施例及其替代方式对本发明进行示意和说明,但应当理解,只要不背离本发明的精神范围内的各种变化和修改均可实施。因此,应当理解除了受随附的权利要求及其等同条件的限制外,本发明不受任何意义上的限制。

Claims (4)

1.一种用于PET复合膜分离回收的组合物,其特征在于:所述组合物为氢氧化钠4-12%、二氯甲烷8-30%、醇类2-10%,余量为水;所述醇类为甲醇、乙醇或苯甲醇。
2.根据权利要求1所述的一种用于PET复合膜分离回收的组合物,其特征在于:还包括二异丁基萘磺酸钠5%。
3.根据权利要求1所述的一种用于PET复合膜分离回收的组合物,其特征在于:还包括十二烷基苯碘酸钠4-5%。
4.根据权利要求1所述的一种用于PET复合膜分离回收的组合物,其特征在于:还包括乙二醇丁醚3-5%。
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BE591169A (zh) * 1959-05-25
DE10142735A1 (de) * 2001-08-31 2003-03-20 Bayer Ag Verfahren zur Verwendung von Polycarbonaten
EP2062926A1 (de) * 2007-11-21 2009-05-27 Sika Technology AG Polyurethanpolymer für reversible Klebeverbindungen
CN103834126B (zh) * 2012-11-27 2016-06-01 郑文贵 一种太阳能膜边角废料回收制作的弹性组合物
TW201436855A (zh) * 2012-12-21 2014-10-01 Tesa Se 從平面結構物移除滲透物的方法
US20170022636A1 (en) * 2015-07-22 2017-01-26 Korea Institute Of Science And Technology Method and composition for depolymerization of cured epoxy resin materials

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