Opportunities and challenges for sound development of flexible plastic packaging materials

doi:10.19491/j.issn.1001-9278.2023.02.009

Abstract

Abstract:

Flexible plastic packaging is conducted by using the complex materials obtained from combining two or more different film materials through adhesives. Flexible plastic packaging has widely used in the fields of food， daily chemical， medicine， industry， and agriculture， etc. As the world enters a low⁃carbon and sustainable era， single⁃materialization and single⁃material enabling technology， new inks， and environmentally friendly adhesive technologies have jointly constructed a low⁃carbon， zero⁃carbon， and carbon⁃negative technology innovation system， and they promoted the plastic flexible packaging industry to enter a low⁃carbon， circular and sustainable high⁃quality development period.

Key words: plastic flexible packaging, mono?material, functionalization, recycling, low carbon

CLC Number:

TQ320.63

CHEN Yu, ZHANG Chunhui, CUI Zheng, SUN Tongbing. Opportunities and challenges for sound development of flexible plastic packaging materials[J]. China Plastics, 2023, 37(2): 56-61.

序号	单材化材料	可替代传统复合材料
1	双向拉伸聚丙烯（BOPP）//^a阻隔涂层//聚丙烯	PET//胶//聚丙烯
2	双向拉伸聚乙烯（BOPE）//阻隔涂层//PE	BOPA//胶//聚乙烯
3	可热封Al₂O₃//乙烯⁃乙烯醇共聚物（EVOH）/^bBOPE（Al₂O₃//EVOH/BOPE//胶//PE）	BOPE//铝箔//胶//聚乙烯
4	可热封BOPP/EVOH//Al₂O₃（PP//胶//BOPP/EVOH//Al₂O₃）	镀铝双向拉伸聚丙烯（VMBOPP）//胶//聚丙烯
5	可热封PET//Al₂O₃	镀铝聚酯（VMPET）

序号	单材化材料	可替代传统复合材料
1	双向拉伸聚丙烯（BOPP）//^a阻隔涂层//聚丙烯	PET//胶//聚丙烯
2	双向拉伸聚乙烯（BOPE）//阻隔涂层//PE	BOPA//胶//聚乙烯
3	可热封Al₂O₃//乙烯⁃乙烯醇共聚物（EVOH）/^bBOPE（Al₂O₃//EVOH/BOPE//胶//PE）	BOPE//铝箔//胶//聚乙烯
4	可热封BOPP/EVOH//Al₂O₃（PP//胶//BOPP/EVOH//Al₂O₃）	镀铝双向拉伸聚丙烯（VMBOPP）//胶//聚丙烯
5	可热封PET//Al₂O₃	镀铝聚酯（VMPET）

样品	水蒸气透过量/g·m^-2·24^-1·h^-1	氧气透过量/mL·m^-2·24^-1·h^-1
普通镀铝薄膜	1.50	2.50
高阻隔镀铝薄膜	0.45	0.43
铝//^c塑复合膜	0.50	0.50
高透明镀AlO _x 薄膜	0.53	0.55

样品	水蒸气透过量/g·m^-2·24^-1·h^-1	氧气透过量/mL·m^-2·24^-1·h^-1
普通镀铝薄膜	1.50	2.50
高阻隔镀铝薄膜	0.45	0.43
铝//^c塑复合膜	0.50	0.50
高透明镀AlO _x 薄膜	0.53	0.55

样品	水蒸气透过量/g·m^-2·24^-1·h^-1	氧气透过量/mL·m^-2·24^-1·h^-1
普通复合产品^d	5.0	120.0
含镀铝层复合产品^e	3.5	13.5
含阻隔涂层产品^f	3.1	12.8

Opportunities and challenges for sound development of flexible plastic packaging materials

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1	张维佳. 洞察2021：中国塑料包装行业竞争格局及市场份额［EB/OL］.（2021⁃09⁃14）［2022⁃11⁃05］. .
2	2025 年单一材料塑料包装全球市场需求将达到 710 亿美元［J］.印刷工业，2020，15（5）：13⁃14.
3	刘丛丛. 《塑料产品可回收再生设计指南》如何解决回收再生实际问题？［J］. 资源再生，2021，12：44⁃47.
	LIU C C. How does the design guide for recyclable plastic products solve the practical problems of recycling？［J］. Resource Recycling， 2021，12：44⁃47.

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