CN113306256A - 一种具有相变储能功能的环保包装材料及其制备方法 - Google Patents

一种具有相变储能功能的环保包装材料及其制备方法 Download PDF

Info

Publication number
CN113306256A
CN113306256A CN202110445215.4A CN202110445215A CN113306256A CN 113306256 A CN113306256 A CN 113306256A CN 202110445215 A CN202110445215 A CN 202110445215A CN 113306256 A CN113306256 A CN 113306256A
Authority
CN
China
Prior art keywords
phase change
energy storage
phase
packaging material
environment
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.)
Granted
Application number
CN202110445215.4A
Other languages
English (en)
Other versions
CN113306256B (zh
Inventor
贺军
戴菊霞
张斌
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.)
Guangzhou Sumitomo Commercial Co ltd
Tenaiwang Huili Plastic Products Wuxi Co ltd
Original Assignee
Guangzhou Sumitomo Commercial Co ltd
Tenaiwang Huili Plastic Products Wuxi 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 Guangzhou Sumitomo Commercial Co ltd, Tenaiwang Huili Plastic Products Wuxi Co ltd filed Critical Guangzhou Sumitomo Commercial Co ltd
Priority to CN202110445215.4A priority Critical patent/CN113306256B/zh
Publication of CN113306256A publication Critical patent/CN113306256A/zh
Application granted granted Critical
Publication of CN113306256B publication Critical patent/CN113306256B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal 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
    • B32B15/082Layered products comprising a layer of metal comprising metal 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 comprising vinyl resins; comprising acrylic resins
    • 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
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (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
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02Materials undergoing a change of physical state when used
    • C09K5/06Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • 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
    • B32B2250/00Layers arrangement
    • B32B2250/40Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2553/00Packaging equipment or accessories not otherwise provided for
    • 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
    • C08J2391/00Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C08J2391/06Waxes
    • 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
    • C08J2425/00Characterised 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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02Homopolymers or copolymers of hydrocarbons
    • C08J2425/04Homopolymers or copolymers of styrene
    • C08J2425/08Copolymers of styrene
    • 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
    • C08J2433/00Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2433/06Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2433/08Homopolymers or copolymers of acrylic acid esters
    • 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
    • C08J2433/00Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2433/06Characterised 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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2433/10Homopolymers or copolymers of methacrylic acid esters
    • C08J2433/12Homopolymers or copolymers of methyl methacrylate
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Wrappers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

本发明公开了一种具有相变储能功能的环保包装材料及其制备方法。本发明的包装材料由上、中、下三层组成,上层和下层均为保护层,中间层为相变储能层,其中相变储能层为相变材料。通过将相变石蜡微胶囊化,可直接二次固化成型,避免了与其他胶类或涂料复合使用,保证了最大效率的相变焓得到利用,因此能够使包装材料本体在相变焓较大的情况下并不厚重,保证了能够在包装领域有较好的应用前景。

Description

一种具有相变储能功能的环保包装材料及其制备方法
技术领域
本发明涉及包装领域,更具体的是一种具有相变储能功能的环保包装材料及其制备方法。
背景技术
相变材料是一种公认的环保材料,具有在一定温度范围内改变其物理状态的能力。以固液相变为例,在加热到熔化温度时,就产生从固态到液态的相变,熔化的过程中,相变材料吸收并储存大量的潜热;当相变材料冷却时,储存的热量在一定的温度范围内要散发到环境中去,进行从液态到固态的逆相变。在这两种相变过程中,所储存或释放的能量称为相变潜热。物理状态发生变化时,材料自身的温度在相变完成前几乎维持不变,形成一个宽的温度平台,虽然温度不变,但吸收或释放的潜热却相当大。
因此能够起到保温的作用,目前已经运用到航天、纺织、建筑、制冷设备、军工等各个领域。但同时也遇到一些问题,由于相变材料大部分是有固态变为液态,其变化过程后,如果有密封不严或者碰撞导致破损会有液体泄露,因此传统工艺的外壳包裹的非常厚,但这样会大大降低其热焓。
相变焓的单位是J/g,其定义是单位质量发生相变后所能吸收或者放出的热量。因此和重量有关,在使用传统外壳包裹相变层时相变层的质量会被大量稀释,最终导致整体的相变焓并不高,因此不能达到效果。
发明内容
为了解决上述问题,本发明公开了一种具有相变储能功能的环保包装材料及其制备方法。
本发明提供了一种具有相变储能功能的环保包装材料,由上、中、下三层组成,上层和下层均为保护层,中间层为相变储能层,其中相变储能层为相变材料。
作为本发明的进一步方案,本发明的一种具有相变储能功能的环保包装材料中所述上层和下层的材质为塑料或金属,所述塑料选自聚乙烯、聚丙烯、聚氯乙烯、聚碳酸酯、聚甲基丙烯酸甲酯中的一种或多种,所述金属选自铁、铝、铜中的一种或多种。
具体的,上层和上层的质量仅为相变层的1/20。这样能够保证最大的发挥相变层的高相变焓优势。
作为本发明的进一步方案,本发明的一种具有相变储能功能的环保包装材料中间层的相变材料为相变石蜡。
作为本发明的进一步方案,所述相变石蜡的结构通式为:
Figure BDA0003039163680000021
其中:x和y表示0以上的整数,并且x+y≥13,A表示-CH2-、-O-、-CO-O-或-O-CO-。
具体的,根据上述通式,相变石蜡的结构可以为十四烷烃、十八烷烃、二十烷烃、八烷基-六烷基醚、八烷基-十二烷基醚、己酸癸脂、辛酸辛酯等。
具体的,能够根据具体使用温度决定使用哪一种相变石蜡,或者两种或更多种相变石蜡混合使用。
作为本发明的进一步方案,本发明的一种具有相变储能功能的环保包装材料中相变温度根据原材料的不同可以从20℃-70℃任意选择。
作为本发明的进一步方案,本发明的一种具有相变储能功能的环保包装材料中相变石蜡的相变焓≥200J/g。
作为本发明的更进一步方案,本发明的一种具有相变储能功能的环保包装材料中相变石蜡的相变焓≥210J/g。
作为本发明的进一步方案,本发明使用聚合法将相变石蜡做成相变微胶囊。
具体的,所述相变微胶囊由相变石蜡、乳化剂、引发剂、油相单体、水相单体及水经过界面聚合法聚合而得。
作为本发明的进一步方案,相变石蜡的质量占环保包装材料总质量的80-95%。
作为本发明的进一步方案,相变石蜡的质量占环保包装材料总质量的90-95%。
作为本发明的进一步方案,本发明使用的界面聚合法中的乳化剂选自乙烯基磺酸钠、烯丙基醚、巯基硅氧烷中的一种或多种。
具体的,上述乳化剂是一种反应型乳化剂,最终会反应到壳材上,不会造成存在游离状态的小分子。
作为本发明的进一步方案,本发明使用的界面聚合法中的乳化剂占界面聚合法反应原料总质量的1-5%。
作为本发明的进一步方案,本发明使用的界面聚合法中的引发剂为水溶性引发剂。
作为本发明的进一步方案,本发明使用的界面聚合法中的引发剂占界面聚合法反应原料总质量的0.5-1.5%。
具体的,水溶性引发剂为过硫酸钾。
作为本发明的进一步方案,本发明使用的界面聚合法中的油相单体为丙烯酸甲酯、苯乙烯、丙烯酸丁酯等带有双键的单体中的一种或多种。
作为本发明的进一步方案,本发明使用的界面聚合法中的水相单体为甲基丙烯酸、丙烯酸、丙烯酰胺等带有双键并能够溶于水的单体中的一种或多种。
作为本发明的进一步方案,本发明界面聚合法中使用的水相单体和油相单体的质量比为0.5:0.5-1。
作为本发明的进一步方案,本发明一种具有相变储能功能的环保包装材料的制备方法,包含步骤如下:
(1)将相变微胶囊装入模具中压实;
(2)在真空状态下升温,温度保持在相变微胶囊的Tg点以上,熔点以下;
(3)当体系定型后取出,使用上层和下层固定。
本发明提供的技术方案带来的有益效果是:
通过将相变石蜡微胶囊化,可直接二次固化成型,避免了与其他胶类或涂料复合使用,保证了最大效率的相变焓得到利用,因此能够使包装材料本体在相变焓较大的情况下并不厚重,保证了能够在包装领域有较好的应用前景。
附图说明
图1为合成例1中相变石蜡的相变温度以及相变焓;
图2为合成例1制备得到的微胶囊的相变温度和相变焓谱图;
图3为合成例1制备得到的微胶囊的显微镜图;
图4为合成例1制备得到的微胶囊的SEM谱图;
图5为实施例1制得的包装材料剪裁后的漏液情况图。
具体实施方法
以下将通过具体实施例进一步地描述本发明。
在以下具体实施例中,所涉及的操作未注明条件者,均按照常规条件或者制造商建议的条件进行。本发明方案中所用原料除相变石蜡外均购自国药以及阿拉丁。
合成例1
将90g的二十二烷烃、5g的甲基丙烯酸甲酯、0.5g的乳化剂乙烯基磺酸钠加入到500g水中,在60℃下使用10000转的乳化器进行乳化,使用显微镜进行观察,直至乳化均匀。
将0.15g的过硫酸钾和5g的丙烯酸溶解在水中,均匀的滴加到体系中,时间保持1小时左右,滴加完成后保温3小时即可得到产品。
合成例2
将85g的十四烷烃、9g的苯乙烯、0.3g的乳化剂烯丙基醚加入到500g水中,在60℃下使用10000转的乳化器进行乳化,使用显微镜进行观察,直至乳化均匀。
将0.15g的过硫酸钾和6g的丙烯酸羟乙酯溶解在水中,均匀的滴加到体系中,时间保持1小时左右,滴加完成后保温3小时即可得到产品。
合成例3
将88g的辛酸辛酯、8g的丙烯酸丁酯、0.2g的乳化剂巯基硅氧烷加入到500g水中,在60℃下使用10000转的乳化器进行乳化,使用显微镜进行观察,直至乳化均匀。
将0.12g的过硫酸钾和4g的丙烯酰胺溶解在水中,均匀的滴加到体系中,时间保持1小时左右,滴加完成后保温3小时即可得到产品。
合成例4
将92g的八烷基-十二烷基醚、5g的丙烯酸丁酯、0.3g的乳化剂加巯基硅氧烷入到500g水中,在60℃下使用10000转的乳化器进行乳化,使用显微镜进行观察,直至乳化均匀。
将0.1g的过硫酸钾和3g的丙烯酰胺溶解在水中,均匀的滴加到体系中,时间保持1小时左右,滴加完成后保温3小时即可得到产品。
合成例5
将92g的二十烷烃、5g的丙烯酸烯丙酯、0.4g的乳化剂乙烯基磺酸钠加入到500g水中,在60℃下使用10000转的乳化器进行乳化,使用显微镜进行观察,直至乳化均匀。
将0.12g的过硫酸钾和3g的丙烯酰胺溶解在水中,均匀的滴加到体系中,时间保持1小时左右,滴加完成后保温3小时即可得到产品。
上述合成例得到的是改性相变材料乳液。测试其相变温度,相变焓,粒径。其中相变温度以及相变焓使用DSC进行测试,粒径使用显微镜进行测试。
相变温度 相变焓 粒径
合成例1 43℃ 217J/g 7um
合成例2 7℃ 187J/g 11um
合成例3 12℃ 192J/g 17um
合成例4 21℃ 214J/g 15um
合成例5 35℃ 220J/g 6um
表1:合成例性能测试表
从上述性能表以及图1至图4可以看出,本发明所使用的改性相变材料具有粒径小,相变温度可控,相变焓高等多种优点。
实施例1
将600g的合成例1制备得到的微胶囊干粉加入到磨具中,室温下抽真空4小时,去除大部分水。然后缓慢升温到壳材tg点以上,熔点以下继续抽真空,保持次过程,直至体系摸上去没有粉状物质。
将体系脱模,使用PET薄膜作为上下层,上下层质量为中间层质量的1/20,使用涂覆胶将上中下三层粘接起来。
实施例2
将600g的合成例2制备得到的微胶囊干粉加入到磨具中,室温下抽真空4小时,去除大部分水。然后缓慢升温到壳材tg点以上,熔点以下继续抽真空,保持次过程,直至体系摸上去没有粉状物质。
将体系脱模,使用铝薄板作为上下层,上下层质量为中间层质量的1/20,使用涂覆胶将上中下三层粘接起来。
实施例3
将600g的合成例3制备得到的微胶囊干粉加入到磨具中,室温下抽真空4小时,去除大部分水。然后缓慢升温到壳材tg点以上,熔点以下继续抽真空,保持次过程,直至体系摸上去没有粉状物质。
将体系脱模,使用聚甲基丙烯酸甲酯薄板作为上下层,上下层质量为中间层质量的1/20,使用涂覆胶将上中下三层粘接起来。
实施例4
将600g的合成例4制备得到的微胶囊干粉加入到磨具中,室温下抽真空4小时,去除大部分水。然后缓慢升温到壳材tg点以上,熔点以下继续抽真空,保持次过程,直至体系摸上去没有粉状物质。
将体系脱模,使用聚丙烯薄膜作为上下层,上下层质量为中间层质量的1/20,使用胶带将上中下三层固定起来。
实施例5
将600g的合成例5制备得到的微胶囊干粉加入到磨具中,室温下抽真空4小时,去除大部分水。然后缓慢升温到壳材tg点以上,熔点以下继续抽真空,保持次过程,直至体系摸上去没有粉状物质。
将体系脱模,使用铜板作为上下层,上下层质量为中间层质量的1/20,使用胶带将上中下三层固定起来。
实施例1-5为合成例1-5的应用,测试其在剪裁或者碰撞下的漏液情况。
剪裁漏液情况
实施例1 不漏液
实施例2 不漏液
实施例3 不漏液
实施例4 不漏液
实施例5 不漏液
从上表以及图中可以看到,本发明制得的环保包装材料在剪裁后完全不发生漏液,并且在石蜡相变变成液体后依然能够牢牢将石蜡固定住,不发生漏液,是一种性能优异的产品。

Claims (10)

1.一种具有相变储能功能的环保包装材料,其特征在于,由上、中、下三层组成,上层和下层均为保护层,中间层为相变储能层,其中相变储能层为相变材料。
2.根据权利要求1所述的一种具有相变储能功能的环保包装材料,其特征在于,所述上层和下层的材质为塑料或金属,所述塑料选自聚乙烯、聚丙烯、聚氯乙烯、聚碳酸酯、聚甲基丙烯酸甲酯中的一种或多种,所述金属选自铁、铝、铜中的一种或多种。
3.根据权利要求1所述的一种具有相变储能功能的环保包装材料,其特征在于,所述中间层的相变材料为相变石蜡。
4.根据权利要求3所述的一种具有相变储能功能的环保包装材料,其特征在于,所述相变石蜡的结构通式为:
Figure FDA0003039163670000011
其中:x和y表示0以上的整数,并且x+y≥13,A表示-CH2-、-O-、-CO-O-或-O-CO-。
5.根据权利要求4所述的一种具有相变储能功能的环保包装材料,其特征在于,所述相变石蜡的相变焓≥200J/g。
6.根据权利要求3所述的一种具有相变储能功能的环保包装材料,其特征在于,使用聚合法将相变石蜡做成相变微胶囊。
7.根据权利要求6所述的一种具有相变储能功能的环保包装材料,其特征在于,所述相变微胶囊由相变石蜡、乳化剂、引发剂、油相单体、水相单体及水经过界面聚合法聚合而得。
8.根据权利要求3中所述的一种具有相变储能功能的环保包装材料,其特征在于,所述相变石蜡的质量占环保包装材料总质量的80-95%。
9.根据权利要求7中所述的一种具有相变储能功能的环保包装材料,其特征在于,所述乳化剂选自乙烯基磺酸钠、烯丙基醚、巯基硅氧烷中的一种或多种;所述乳化剂占界面聚合法反应原料总质量的1-5%;所述引发剂为水溶性引发剂;所述引发剂占占界面聚合法反应原料总质量的0.5-1.5%;所述油相单体为丙烯酸甲酯、苯乙烯、丙烯酸丁酯中的一种或多种;所述水相单体为甲基丙烯酸、丙烯酸、丙烯酰胺中的一种或多种;所述水相单体和油相单体的质量比为0.5∶0.5-1。
10.权利要求7所述具有相变储能功能的环保包装材料的制备方法,其特征在于,包含步骤如下:
(1)将相变微胶囊装入模具中压实;
(2)在真空状态下升温,温度保持在相变微胶囊的Tg点以上,熔点以下;
(3)当体系定型后取出,使用上层和下层固定。
CN202110445215.4A 2021-04-26 2021-04-26 一种具有相变储能功能的环保包装材料及其制备方法 Active CN113306256B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110445215.4A CN113306256B (zh) 2021-04-26 2021-04-26 一种具有相变储能功能的环保包装材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110445215.4A CN113306256B (zh) 2021-04-26 2021-04-26 一种具有相变储能功能的环保包装材料及其制备方法

Publications (2)

Publication Number Publication Date
CN113306256A true CN113306256A (zh) 2021-08-27
CN113306256B CN113306256B (zh) 2023-06-06

Family

ID=77372688

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110445215.4A Active CN113306256B (zh) 2021-04-26 2021-04-26 一种具有相变储能功能的环保包装材料及其制备方法

Country Status (1)

Country Link
CN (1) CN113306256B (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107538842A (zh) * 2017-05-19 2018-01-05 上海叹止新材料科技有限公司 一种储能散热复合胶片及其制备方法
CN110744897A (zh) * 2019-09-09 2020-02-04 山东斯诺尔节能建材有限公司 含有相变材料的建筑保温卷材及其制备方法
CN111761898A (zh) * 2020-07-03 2020-10-13 泉州陶纪塑胶有限公司 一种医用包装膜及其制备方法
CN111959072A (zh) * 2019-06-27 2020-11-20 襄阳三沃航天薄膜材料有限公司 一种储能相变薄膜复合材料及其制备方法和应用

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107538842A (zh) * 2017-05-19 2018-01-05 上海叹止新材料科技有限公司 一种储能散热复合胶片及其制备方法
CN111959072A (zh) * 2019-06-27 2020-11-20 襄阳三沃航天薄膜材料有限公司 一种储能相变薄膜复合材料及其制备方法和应用
CN110744897A (zh) * 2019-09-09 2020-02-04 山东斯诺尔节能建材有限公司 含有相变材料的建筑保温卷材及其制备方法
CN111761898A (zh) * 2020-07-03 2020-10-13 泉州陶纪塑胶有限公司 一种医用包装膜及其制备方法

Also Published As

Publication number Publication date
CN113306256B (zh) 2023-06-06

Similar Documents

Publication Publication Date Title
Wang et al. Effects of fabricated technology on particle size distribution and thermal properties of stearic–eicosanoic acid/polymethylmethacrylate nanocapsules
Chaiyasat et al. Innovative synthesis of high performance poly (methyl methacrylate) microcapsules with encapsulated heat storage material by microsuspension iodine transfer polymerization (ms ITP)
Şahan et al. Novel shapeable phase change material (PCM) composites for thermal energy storage (TES) applications
US8381495B2 (en) Gel mat and method for manufacturing the same
Zhang et al. Fabrication and performances of new kind microencapsulated phase change material based on stearic acid core and polycarbonate shell
Qiu et al. Preparation and characterization of microencapsulated n-octadecane as phase change material with different n-butyl methacrylate-based copolymer shells
Zhao et al. Recyclable low-temperature phase change microcapsules for cold storage
EP3733276B1 (en) Method for low temperature microencapsulation of phase change materials
JP2009511660A (ja) 蓄熱性相転移物質を含有するポリマー組成物、当該組成物を製造する方法、及び当該組成物を含有する製品
CN104874339A (zh) 一种双层壁材相变微胶囊的制备方法
Qiu et al. Preparation and thermal properties of microencapsulated paraffin with polyurea/acrylic resin hybrid shells as phase change energy storage materials
Li et al. Effect of N-isopropylacrylamide on the preparation and properties of microencapsulated phase change materials
Han et al. Fabrication and characterization of a new enhanced hybrid shell microPCM for thermal energy storage
CN104592438B (zh) 对金属基材具有高附着力的三层核壳结构互穿网络乳液及其合成方法
CN106046229A (zh) 一种相变微球及其制备方法
Qiu et al. Microencapsulated paraffin as a phase change material with polyurea/polyurethane/poly (lauryl methacrylate) hybrid shells for thermal energy storage applications
CN108822409B (zh) 一种可调温的cpp/bopp复合包装薄膜及制备方法
CN102391839B (zh) 抑制过冷相变的烷烃微胶囊及其制备与应用
Mohammadi et al. Nanoencapsulation of butyl palmitate in polystyrene-co-methyl methacrylate shell for thermal energy storage application
CN111574966B (zh) 一种盘状相变微胶囊及其制备方法和应用
Tang et al. Fabrication and performances of microencapsulated n-alkanes with copolymers having n-octadecyl side chains as shells
CN113306256A (zh) 一种具有相变储能功能的环保包装材料及其制备方法
Pradhan et al. Encapsulation of paraffin wax by rigid cross-linked poly (styrene divinylbenzene-acrylic acid) and its thermal characterization
CN110028936B (zh) 一种交联网状定形相变材料的制备方法
CN114316919B (zh) 一种用于相变储能材料封装的聚合物/氧化石墨烯复合微胶囊及其制备方法

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