Effect of transcrystalline morphology on interfacial adhesion in cellulose/polypropylene composites

1994 ◽  
Vol 29 (11) ◽  
pp. 3043-3049 ◽  
Author(s):  
J. M. Felix ◽  
P. Gatenholm
Keyword(s):  
Interfacial Adhesion ◽  
Polypropylene Composites

Bio-inspired polydopamine functionalization of carbon fiber for improving the interfacial adhesion of polypropylene composites

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107652-107661 ◽  
Author(s):  
Yuan Liu ◽  
Yichao Fang ◽  
Jianhua Qian ◽  
Zuozhen Liu ◽  
Bin Yang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Maleic Anhydride ◽  
Interfacial Adhesion ◽  
Interfacial Interaction ◽  
Polypropylene Composites ◽  
Polymerization Method

Carbon fiber was surface-functionalized by a facile dopamine self-polymerization method to improve the interfacial interaction with maleic anhydride grafted polypropylene modified PP.

Reactive Compatibilization in Nano-Silica Filled Polypropylene Composites

2007 ◽  
Vol 121-123 ◽  
pp. 1433-1436 ◽  
Author(s):  
Klaus Friedrich ◽  
Min Zhi Rong ◽  
Ming Qiu Zhang
Keyword(s):  
Glycidyl Methacrylate ◽  
Interfacial Adhesion ◽  
Crystallization Behavior ◽  
Filler Content ◽  
Nano Silica ◽  
Reactive Compatibilization ◽  
Polypropylene Composites ◽  
Amine Functionalized ◽  
Compatibilization Effect ◽  
Notch Impact Strength

Nano-sized silica was pre-grafted with poly(glycidyl methacrylate) (PGMA) by solution free-radical polymerization. When these grafted silica particles were melt compounded with polypropylene (PP), reactive compatibilization effect was perceived due to the chemical bonding between the PGMA and amine functionalized PP, which led to a significant increase of tensile strength and notch impact strength of PP at rather low filler content. Accordingly, compatibility of each kind of the functionalized PP with grafted SiO2 was evaluated through investigating the mechanical properties, crystallization behavior and rheological performance of the composites. The results show that the reactive compatibilization is capable of providing stronger interfacial adhesion.

Preparation of Nano-Silica/Polypropylene Composites Using Reactive Compatibilization

2006 ◽  
Vol 312 ◽  
pp. 229-232 ◽  
Author(s):  
Klaus Friedrich ◽  
Min Zhi Rong ◽  
Ming Qiu Zhang ◽  
Wen Hong Ruan
Keyword(s):  
Glycidyl Methacrylate ◽  
Interfacial Adhesion ◽  
Filler Content ◽  
Sio2 Nanoparticles ◽  
Nano Silica ◽  
Reactive Compatibilization ◽  
Polypropylene Composites ◽  
Amine Functionalized ◽  
Compatibilization Effect ◽  
Notch Impact Strength

Nano-sized silica particles were pre-grafted with poly(glycidyl methacrylate) (PGMA) by solution free-radical polymerization. When these grafted silica nanoparticles were melt compounded with polypropylene (PP), reactive compatibilization effect was perceived due to the chemical bonding between the grafted PGMA and amine functionalized PP, which led to a significant increase of tensile strength and notch impact strength of PP at rather low filler content. Accordingly, compatibility of each kind of the functionalized PP with grafted SiO2 nanoparticles was evaluated through investigating the mechanical properties, crystallization behavior and rheological performance of the composites. The results show that the reactive compatibilization is capable of providing stronger interfacial adhesion.

Influence of coupling agent on post-consumption polypropylene composites reinforced with malt bagasse fibers

2021 ◽  
pp. 002199832110370
Author(s):  
Daniela Stefani ◽  
Marcos Aurélio Dahlem Júnior ◽  
Edson Luiz Francisquetti ◽  
Fernando da Silva dos Reis ◽  
Cleide Borsoi ◽  
...  
Keyword(s):  
Coupling Agent ◽  
Interfacial Adhesion ◽  
Morphological Analysis ◽  
Thermoplastic Composites ◽  
Second Step ◽  
Mechanical Resistance ◽  
Brewing Industry ◽  
Polypropylene Composites ◽  
Two Stages ◽  
Reinforcing Filler

The aim of this work was to evaluate the influence of the use of coupling agent (CA) on the properties of thermoplastic composites produced from post-consumer polypropylene (rPP) and malt bagasse fibers (MB) of brewing industry. The CA used was maleic anhydride graft polypropylene copolymer (MAgPP). The study was carried out in two stages: in first step the best concentration of MB fibers was verified, where was varied the fiber contents between 0, 10, 20 and 30% (w/w); in the second step, the best MB concentration evaluated was used with different CA concentrations (0, 1, 3, 5 and 7% w/w). Of the three MB concentrations evaluated as reinforcing filler, the sample with a 30% (w/w) ratio presented 44% lower deformation than the others, presenting better mechanical resistance, although it also presented the highest water absorption. Thus, the 30% MB fiber content was chosen for two step, where the results showed that the PP/MB-30 composite treated with 3% (w/w) CA had a modulus of elasticity 10.3% higher than the same composite without CA, corroborating with the morphological analysis, which indicated better interfacial adhesion between composite components when CA was used. The PP/MB-30 composite treated with 1% (w/w) CA showed the highest thermal stability among all samples.

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