Modification of microporous polyurethane elastomers with different types of ashmorphological, mechanical, and thermal studies
Modification of microporous polyurethane elastomers with different types of ashmorphological, mechanical, and thermal studies
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DOI：
10.1002/pc.23246
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发表时间：
2016-03-01
影响因子：
5.2
通讯作者：
Piszczyk, Lukasz
中科院分区：
文献类型：
--
作者：
Hejna, Aleksander;Kosmela, Paulina;Piszczyk, Lukasz
将木材气化产生的木灰颗粒掺入微孔聚氨酯弹性体中进行了研究，并与煤燃烧产生的商用微球的添加进行了比较。用3 wt%和6 wt%的填料对样品进行改性。研究了所得弹性体的结构、力学和热性能。两种灰颗粒的掺入降低了聚氨酯的密度，同时增加了它们的抗拉强度和断裂伸长率。微球的加入改变了聚氨酯的节段结构，对热稳定性有不利影响。虽然木材热解灰分的使用提高了弹性体的热稳定性，产生了迷宫效应，显著抑制了材料的热降解。研究结果表明，木灰可以成功地用作聚氨酯弹性体的力学和热性能改性剂。变异较大。心神。中文信息学报，37(7):881-889,2016。(c) 2014年塑料工程师学会
Incorporation of wood ash particles from wood gasification into microporous polyurethane elastomers has been investigated and compared to addition of commercially available microspheres resulting from coal burning. Samples were modified with 3 and 6 wt% of fillers. Structure, mechanical, and thermal properties of obtained elastomers were investigated. Incorporation of both types of ash particles decreased the density of polyurethanes simultaneously increasing their tensile strength and elongation at break. Addition of microspheres caused changes in segment structure of polyurethane, which had negative impact on thermal stability. Although the use of ash from wood pyrolysis enhanced thermal stability of elastomers, causing labyrinth effect,, which inhibited significantly thermal degradation of material. Results of research show that wood ash can be successfully used as a modifier of mechanical and thermal properties in polyurethane elastomers. POLYM. COMPOS., 37:881-889, 2016. (c) 2014 Society of Plastics Engineers