Thermal and mechanical properties enhancements obtained by reinforcing a bisphenol-a based phthalonitrile resin with silane surface-modified alumina nanoparticles

2015 ◽  
Vol 38 (8) ◽  
pp. 1549-1558 ◽  
Author(s):  
Mehdi Derradji ◽  
Noureddine Ramdani ◽  
Tong Zhang ◽  
Jun Wang ◽  
Lin-dan Gong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bisphenol A ◽  
Alumina Nanoparticles ◽  
Thermal And Mechanical Properties ◽  
Modified Alumina ◽  
Surface Modified

scholarly journals Effect of benzoic acid surface modified alumina nanoparticles on the mechanical properties and crystallization behavior of isotactic polypropylene nanocomposites

RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20790-20800 ◽  
Author(s):  
Xiaofeng Jiang ◽  
Wenxue Zhang ◽  
Shicheng Zhao ◽  
Shuai Zhou ◽  
YaoQi Shi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Benzoic Acid ◽  
Isotactic Polypropylene ◽  
Crystallization Behavior ◽  
Mechanical Performance ◽  
Alumina Nanoparticles ◽  
Modified Alumina ◽  
Polypropylene Nanocomposites ◽  
Conformational Ordering ◽  
Surface Modified

The CH–π interactions between polypropylene and functionalized alumina (BA-Al2O3) nanoparticles improve the mechanical performance and conformational ordering of nanocomposites.

Effect of Cellulose Functionalization on Thermal and Mechanical Properties of Epoxy Resin

2017 ◽  
Vol 757 ◽  
pp. 62-67 ◽  
Author(s):  
Kritsanachai Leelachai ◽  
Supissara Ruksanak ◽  
Tarakol Hongkeab ◽  
Supakeat Kambutong ◽  
Raymond A. Pearson ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Diglycidyl Ether ◽  
Cellulose Content ◽  
Thermal And Mechanical Properties ◽  
Chemical Surface ◽  
Pull Out ◽  
Fiber Bridging ◽  
Surface Modified ◽  
Modified Epoxy

In this study, diglycidyl ether of bisphenol A (DGEBA) cured cycloaliphatic polyamine was modified with functionalized celluloses for improved thermal and mechanical properties. Three different types of surface-modified cellulose, polyacrylamide-g-cellulose (PGC), aminopropoxysilane-g-cellulose (SGC), and carboxymethyl cellulose (CMC), were investigated and used as reinforcing agents in epoxy resins. The storage modulus of these modified epoxy systems was found to significantly increase with addition of cellulose fillers (up to 1 wt. % cellulose content). An improved fracture toughness (KIC) was also observed with increasing cellulose loading content with PGC and SGC. Among the surface-modified celluloses, epoxy modified with SGC was found to have the highest fracture toughness followed by PGC and CMC at 1.0 wt.% cellulose addition due to the chemical surface compatibility. The toughening mechanisms of the cellulose/epoxy composites, measured by scanning electron microscopy (SEM), revealed that fiber-debonding, fiber-bridging, and fiber-pull out were responsible for increased toughness.

Effects of silane surface modified alumina nanoparticles on the mechanical, thermomechanical, and ballistic impact performances of epoxy/oxidized UHMWPE composites

2020 ◽  
Vol 41 (11) ◽  
pp. 4526-4537
Author(s):  
Raouf Belgacemi ◽  
Mehdi Derradji ◽  
Djalal Trache ◽  
Abdelrazak Mouloud ◽  
Abdeldjalil Zegaoui ◽  
...  
Keyword(s):  
Ballistic Impact ◽  
Alumina Nanoparticles ◽  
Modified Alumina ◽  
Uhmwpe Composites ◽  
Surface Modified

Curing, Thermal and Mechanical Properties of Liquid Crystalline p-SBPEPB/BPAER/DDE System

2011 ◽  
Vol 239-242 ◽  
pp. 3253-3256 ◽  
Author(s):  
Li Huo ◽  
Jun Gang Gao ◽  
Yong Gang Du
Keyword(s):  
Mechanical Properties ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Impact Strength ◽  
Bisphenol A ◽  
Liquid Crystalline ◽  
Curing Agent ◽  
Thermal And Mechanical Properties ◽  
Component System

The curing, thermal and mechanical properties of bi-component system for bisphenol A epoxy resin (BPAER) modified by liquid crystalline Sulfonyl bis(4,1-phenylene)bis[4-(2,3-epoxypro pyloxy)benzoate] (p-SBPEPB), with 4,4'-diaminodiphenyl ether (DDE) as a curing agent, were investigated. The effect of the different liquid crystalline contents and the heating rate on curing reaction was discussed. The results show that the curing peak temperature decreases, curing rate increases, the glass transition temperature (Tg)and impact strength all increase with adding of liquid crystalline p-SBPEPB when the content is not over 8wt%.

Sign in / Sign up

Export Citation Format

Share Document