The effect of addition of low-layer graphene nanoparticles on structure and mechanical properties of polyurethane-based block copolymers

被引：7

作者：

Gorbunova, Marina ^{[1
]}

Komratova, Viktoria ^{[1
]}

Grishchuk, Alexander ^{[1
]}

Badamshina, Elmira ^{[1
]}

Anokhin, Denis ^{[1
,2
]}

机构：

[1] Russian Acad Sci, IPCP, Academician Semenov Av 1, Chernogolovka 142432, Russia

[2] MIPT, Inst Skiy Per 9, Dolgoprudnyi 141700, Moscow Region, Russia

来源：

POLYMER BULLETIN | 2019年 / 76卷 / 11期

关键词：

Polyurethane; Low-layer graphene nanoparticles; Mechanical properties; Small-angle X-ray scattering experiments; CARBON NANOTUBE; PHYSICAL-PROPERTIES; STRESS-RELAXATION; NANOCOMPOSITES; COMPOSITES; GRAPHITE; CREEP; OXIDE; FABRICATION; BEHAVIOR;

D O I：

10.1007/s00289-018-02673-z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of low-layer graphene nanoparticles (LLGNP) at concentration from 0.002 to 0.1 wt.% on physical-mechanical and structural parameters of multi-block polyurethanes based on oligodiethyleneglycol adipinate, 2,4-toluylene diisocyanate and 1,6-hexamethylene diisocyanate mixture and bifunctional chain elongation agents, 2-aminoethanol and 1,4-butanediol has been studied. Three methods for LLGNP addition in polymer were compared: (1) in a reaction mixture at the polymer synthesis on a macrodiisocyantate formation step (in situ 1 method); (2) in the polymer solution at a final reaction step (in situ 2 method); and (3) in polymer melt (ex situ). It has been shown that using of the in situ 2 method provides an increase in Young's modulus of the nanocomposites. For ex situ method, a significant increase in tensile strength of the material with growth of LLGNP concentration was detected.

引用

页码：5813 / 5829

页数：17