多糖化合物复合薄膜利用木材废弃物
Anita Kwaśniewska1, Michał Świetlicki1, Beata Kowalska2
1Department of Applied Physics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Materials (Basel, Switzerland)
|September 9, 2023
概括
将松木粉添加到粉生物聚合物薄膜中,可以提高它们的机械强度并保持它们的水友性质. 这些无毒,环保的复合材料适用于包装和农业.
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
- 生物技术是生物技术.
背景情况:
- 多糖生物聚合物为传统塑料提供了可持续的替代品.
- 废弃物如木尘的利用对循环经济至关重要.
- 研究天然填充剂可以提高生物聚合物的性能,用于各种应用.
研究的目的:
- 评估原始废弃松木粉尘对基于粉的生物聚合物薄膜性能的影响.
- 描述由此产生的生物复合材料的机械,表面,屏障和物理性能.
- 评估这些新材料对于工业应用的适用性.
主要方法:
- 生物复合材料薄膜使用造方法制备,其中松木粉尘的百分比不同 (0-25%).
- 材料的特征包括组合分析,粒子大小分布,原子力显微镜 (AFM),接触角度和单轴拉伸测试.
- 还评估了屏障特性,水溶性指数和颜色.
主要成果:
- 增加的木灰含量导致了更高的扬模量和最大应变的降低,表明增强的刚性.
- 添加木尘并没有改变薄膜的水友性表面特性.
- 屏障特性,水溶性和颜色都受到木材灰尘含量的影响.
结论:
- 松木粉尘有效地改变了多糖生物聚合物薄膜的功能参数.
- 由此产生的生物来源的复合材料是无毒和环境中性的.
- 这些材料显示出在包装和农业行业的应用潜力.
相关概念视频
Wood Products
106
Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
106
Wood Panel Products
92
Wood panel products are essential materials used in construction for applications such as flooring, siding, and roofing, typically available in standard dimensions of 4 feet by 8 feet, with thicknesses varying from one-quarter of an inch to one and one-eighth inches. Among the most common types of wood panels is plywood, which is produced by gluing multiple layers of thin wood veneers under pressure. The grain of the outer veneers runs lengthwise, while the grains of the interior layers run...
92
Cellulose and Pectic Polysaccharides
3.6K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
3.6K
Biosynthesis of Polysaccharides
37
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
37
Types of Step-Growth Polymers: Polyesters
2.3K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K


