相关实验视频

Updated: Jul 12, 2025

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Published on: February 11, 2016

开发基于聚基酸的包装薄膜及其超声波接方法

Viktoriia Talaniuk^1,2,3, Marcin Godzierz^1,3, Alina Vashchuk²

¹Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska Str. 34, 41-819 Zabrze, Poland.

Materials (Basel, Switzerland)

|October 28, 2023

概括

这项研究探讨了用N,N-dibutylundecenoylamide (DBUA) 塑化的可生物降解聚3-基酸盐 (PHB) 的超声波接. 接改变了结晶性和热性质,影响了接接头的强度.

科学领域:

聚合物科学聚合物科学
材料科学材料科学材料科学

背景情况:

可生物降解的聚合物在材料应用中提供了可持续的替代品.
聚3-基酸盐 (PHB) 是一个有前途的天然生物聚合物,具有改造潜力.
了解生物聚合物的接性对于其实际实施至关重要.

研究的目的:

研究超声波接对用N,N-二butanylundecenoylamide (DBUA) 修饰的聚3-基酸盐 (PHB) 的影响.
描述接PHB基生物聚合物接头的物理化学特性.
为了优化PHB和PHB/DBUA材料的超声波接过程.

主要方法:

超声波接使用布兰森压式装置.
通过扫描电子显微镜 (SEM),X射线衍射 (XRD),FT-IR光谱学,差分扫描热度计 (DSC) 和热力学分析 (TMA) 来进行物理化学表征.

主要成果:

N,N-dibutylundecenoylamide (DBUA) 有效地塑化了PHB,使其晶度从69%降低到63%.
超声波接将PHB/DBUA的结晶度提高了约8.5%.
接转移了结晶和融化峰值,影响了PHB的融化结晶行为.

结论:

DBUA作为PHB的有效塑化剂,改变其结构性质.
超声波接会影响基于PHB的材料的结晶性和热过渡.
超声波接PHB/DBUA接头的抗拉强度在接口处受到损害.

关键词:

生物聚合物是一种生物聚合物.聚3-基酸盐),N,N-二butanylundecenoylamide塑化剂的塑化剂.超声波接关节超声波接关节

更多相关视频

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

High Throughput Microfluidic Rapid and Low Cost Prototyping Packaging Methods

High Throughput Microfluidic Rapid and Low Cost Prototyping Packaging Methods

Published on: December 23, 2013

相关概念视频

Types of Step-Growth Polymers: Polyesters

Types of Step-Growth Polymers: Polyesters

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...