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迈向循环生物经济:探索茎粉膜作为一次性使用应用中的塑料替代品

Atitiya Namphonsane¹, Phattarakarn Suwannachat¹, Chin Hua Chia²

¹Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Nakhon Pathom 73170, Thailand.

|May 26, 2023

概括

研究人员从茎废物中制造出一种可生物降解的粉膜,为包装提供了石油基塑料的可持续替代品. 这种环保材料具有耐水性,耐热密封性,并在一个月内完全可生物降解.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
可持续材料可持续材料

背景情况:

基于石油的塑料由于其非生物降解性而带来了环境挑战.
在一次性包装应用中,对可持续替代品的需求越来越大.
茎废物代表了一个未充分利用的生物质资源.

研究的目的:

从茎废物中开发一种可生物降解的粉膜.
评估薄膜作为石油基薄膜的替代品在强度要求较低的应用中.
调查添加剂对薄膜机械和物理性能的影响.

主要方法:

从茎中提取的高粉被用作基质.
甘油和酸被纳入作为塑化剂和交叉链接剂.
酸含量根据粉的重量从0%到15%不等.
评估了机械性能 (强度,延长),耐水性,热密封性和生物降解性.

主要成果:

薄膜表现出一系列的机械性能,从21.5 MPa强度/2.9%延伸到6.8 MPa强度/35.7%延伸.
酸含量增加导致了更软,更弱的薄膜,在断裂时具有更大的延伸.
开发的薄膜证明了耐水性和热密封性.
X射线衍射证实了半晶体结构.
土壤埋葬测试显示,在一个月内完全解体.

结论:

可生物降解的粉薄膜可以成功地从茎废物中开发出来.
薄膜的特性可以通过调整酸含量来适应特定的一次性应用来定制.
这种衍生膜为传统塑料提供了一个有希望的,环保的替代品.

关键词:

农业废弃物农业废弃物粉糖是什么粉糖是什么电影电影电影电影电影的茎的茎的茎.这是一种粉,粉.

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