CN105860457A - 一种新型聚乳酸膜 - Google Patents

一种新型聚乳酸膜 Download PDF

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Publication number
CN105860457A
CN105860457A CN201610308414.XA CN201610308414A CN105860457A CN 105860457 A CN105860457 A CN 105860457A CN 201610308414 A CN201610308414 A CN 201610308414A CN 105860457 A CN105860457 A CN 105860457A
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China
Prior art keywords
polylactic acid
pbs
film
polylactic
novel
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CN201610308414.XA
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English (en)
Inventor
黄海峰
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Shanghai Xinxing Environmental Protection Technology Co Ltd
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Shanghai Xinxing Environmental Protection Technology Co Ltd
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Priority to CN201610308414.XA priority Critical patent/CN105860457A/zh
Publication of CN105860457A publication Critical patent/CN105860457A/zh
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

本发明揭示了一种新型聚乳酸膜，其在主料聚乳酸中添加有重量比为5~50%的PBS。通过添加有PBS可有效提高聚乳酸膜的拉伸强度及黏度，因此便于成型包装盒与容器，令聚乳酸膜的使用更加广泛；另外，通过在聚乳酸中添加PBS可以分解材料后遇热水无异味又无毒，更适于食品的包装。

Description

一种新型聚乳酸膜
技术领域
本发明涉及一种聚乳酸膜，属于高分子材料领域。
背景技术
聚乳酸（PLA）为多用途可堆肥的高分子聚合物，完全由植物中萃取出淀粉，经过发酵、去水、聚合等过程制造而成，因此无毒性。加上聚乳酸为生物可分解塑料的其中一种，分解后会形成水和二氧化碳，能减少对生态的冲击。
然而聚乳酸容易水解，因此保存不易；再者聚乳酸制品的机械性质不强，容易损坏。因此目前的聚乳酸制品都会结合其它高分子塑料原料以进行改质。
但是目前的聚乳酸膜在吸朔与射出时加工不易，因此在其应用方便仍受到一定的限制；另外，在压板吸朔部分成形后产品会残留聚乳酸碎片；再者，对于PE淋聚乳酸膜时遇热水会存在有异味问题。
基于上述问题，本案由此产生。
发明内容
本发明的目的是提供一种新型聚乳酸膜，其具有便于加工的特性，以适配更广泛的应用；同时具有去除PE淋膜异味的产生。
为实现上述目的，本发明的解决方案是：
一种新型聚乳酸膜，其特征在于：其在主料聚乳酸中添加有 重量比为5~50%的PBS。
采用上述方案后，由于本发明的新型聚乳酸膜的主料聚乳酸中添加有PBS，可有效提高聚乳酸膜的拉伸强度及黏度，因此便于成型包装盒与容器，令聚乳酸膜的使用更加广泛；另外，通过在聚乳酸中添加PBS可以分解材料后遇热水无异味又无毒，更适于食品的包装。
具体实施方式
本发明揭示了一种新型聚乳酸膜，其在主料聚乳酸中添加有重量比为5~50%的PBS（聚丁二酸丁二醇酯，是一種由丁二酸和1,4-丁二醇合成的可生物降解聚合物），其中PBS依市场产品需求改变添加量。
添加该PBS后，可有效提高聚乳酸膜的拉伸强度及黏度，相用使用规范更广泛，如生鲜盘、蛋托、糕饼盒；纸类，顶替现有PE水杯/PE咖啡杯、食品包材等。
另外，通过在聚乳酸中添加PBS可以分解材料后遇热水无异味又无毒，更适于食品的包装。
以上所述，仅是本发明实施例而已，并非对本发明的技术范围作任何限制，故凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (1)

1.一种新型聚乳酸膜，其特征在于：其在主料聚乳酸中添加有重量比为5~50%的PBS。
CN201610308414.XA 2016-05-11 2016-05-11 一种新型聚乳酸膜 Pending CN105860457A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610308414.XA CN105860457A (zh) 2016-05-11 2016-05-11 一种新型聚乳酸膜

Applications Claiming Priority (1)

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Publications (1)

Publication Number Publication Date
CN105860457A true CN105860457A (zh) 2016-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107459796A (zh) * 2017-09-26 2017-12-12 安徽金星包装有限公司 一种塑料杯及其加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999587A (zh) * 2006-12-25 2007-07-18 刘津平 一种生物全降解薄膜及其材料的制造方法
CN101824211A (zh) * 2010-04-15 2010-09-08 中国科学院宁波材料技术与工程研究所 一种全生物降解高韧性耐热型聚乳酸树脂及其制备方法
CN103732657A (zh) * 2011-08-08 2014-04-16 东丽株式会社 生物分解性膜

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999587A (zh) * 2006-12-25 2007-07-18 刘津平 一种生物全降解薄膜及其材料的制造方法
CN101824211A (zh) * 2010-04-15 2010-09-08 中国科学院宁波材料技术与工程研究所 一种全生物降解高韧性耐热型聚乳酸树脂及其制备方法
CN103732657A (zh) * 2011-08-08 2014-04-16 东丽株式会社 生物分解性膜

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107459796A (zh) * 2017-09-26 2017-12-12 安徽金星包装有限公司 一种塑料杯及其加工方法

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Application publication date: 20160817