El Hajj, N. published the artcileRecycling of poly(propylene)-based car bumpers as carrier resin for short glass fiber composites, Category: esters-buliding-blocks, the publication is Journal of Material Cycles and Waste Management (2021), 23(1), 288-300, database is CAplus.
The production of composite materials from post-consumer polypropylene car bumper waste (PP-CBW) and short glass fibers (SGF) by melt processing was investigated during this study. To improve the interfacial adhesion between the fibers and the matrix, two coupling agents maleic anhydride-grafted linear low-d. polyethylene (LLDPE-g-MA) and Retain were introduced during the compounding process. The effect of various SGF loadings, types of coupling agents, SGF to coupling agent ratio and short glass fiber length on thermal, phys. and mech. properties were thoroughly investigated during this study. Differential scanning calorimetry (DSC) anal. indicated significant changes in the crystallization temperature (Tc) and percentage crystallinity (Xc) when the SGF content and length were modified. The average length (Lave) was found to decrease with increasing the SGF loading. On the other hand, Lave values increased with the original glass fiber length and when a SGF/LLDPE-g-Ma ratio of 5:1 was used compared to the ratio 3:1. The incorporation of SGF improved drastically the flexural and the tensile properties but decreased the impact properties. The impact properties improved when a ratio of SGF/LLDPE-g-MA of 3:1 was used. Mech. results showed also that the LLDPE-g-MA is a better compatibilizer than Retain for stiffness and strength, whereas Retain composites resulted in higher impact properties than LLDPE-g-MA composites. The SEM results revealed that SGFs are evenly distributed in PP-CBW matrixes.
Journal of Material Cycles and Waste Management published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Category: esters-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics