相关实验视频

Updated: Jul 2, 2025

Twin-Screw Extrusion Process to Produce Renewable Fiberboards

Twin-Screw Extrusion Process to Produce Renewable Fiberboards

Published on: January 27, 2021

通过反应挤出提高高宁填充聚烯的机械性能

Ruichen Wang¹, Xiangyu You¹, Shijie Qi¹

¹College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science of Science & Technology, Xi'an 710021, China.

|February 24, 2024

概括

这项研究增强了高素含量的聚烯 (PP),改善了机械性能,降低了成本和温室气体排放. 马氏无水化物移植聚烯 (MAPP) 兼容剂是实现与整洁PP相比性能的关键.

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:

聚烯 (PP) 是一种广泛使用的塑料,具有显著的环境影响.
纸制造的副产品,为可持续材料开发提供了机会.
高素填充的PP复合材料正在被探索作为更环保的替代品.

研究的目的:

研究将高素含量 (乙酸素和Kraft素) 纳入聚烯的情况.
为了评估胺无接种聚烯 (MAPP) 作为兼容剂对混合物性能的影响.
评估素填充PP复合材料的机械性能,成本效益和环境效益.

主要方法:

双螺丝挤出和注塑被用来制备PP/质混合物.
作为兼容剂,采用了不同含量和化流量指数 (MFI) 的化无接种聚烯 (MAPP).
进行了机械测试 (模块,热偏移温度) 和成本/温室气体 (GHG) 排放分析.

主要成果:

与乙酸素 (AAL) 相比,强力素 (KL) 在PP中显示出更好的分散性.
与含有≥0.8%重量%MA和60-100g/10分钟的MFI的MAPP实现了最佳的兼容性.
PP/KL与40%重量%的素和10 pph的兼容剂混合,其机械性能与纯 PP相提并论,其模量和热偏移温度 (HDT) 增加.

结论:

高素填充的PP复合材料,特别是KL和优化的MAPP,为整洁的PP提供了可行的可持续替代品.
这些混合物实现了可比的机械性能,同时降低了约20%的生产成本和约40%的温室气体排放.
这项研究促进了木质素的价值化,并有助于经济高效,环保的塑料材料的开发.

关键词:

兼容性兼容性兼容性的兼容性有高的红素含量,具有高的红素含量.红色的线性蛋白质 (lignin) 是一种机械性能机械性能机械性能聚烯聚烯的使用方法

更多相关视频

Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Published on: May 22, 2014

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

相关概念视频

Polymer Classification: Architecture

Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...

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...

Free-Radical Chain Reaction and Polymerization of Alkenes

Free-Radical Chain Reaction and Polymerization of Alkenes

The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.