Effects of compatilizers on the cellular structures, interfacial morphologies and mechanical properties of PP foam composites

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Ji-Nian Yang ◽  
Zi-Quan Li ◽  
Jin-Song Liu
Keyword(s):  
Mechanical Properties ◽  
Maleic Anhydride ◽  
Cell Size ◽  
Cellular Structures ◽  
Cell Size Distribution ◽  
Foaming Process ◽  
Short Glass Fiber ◽  
Elastomeric Particles ◽  
The Impact ◽  
Short Glass

AbstractThe short glass fiber (SGF)/polypropylene (PP) and ethylene-1-octene copolymer (POE)/SGF/PP foam composites were prepared by extrusion and subsequent post-foaming process in designed dies. The compatilizers, maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted POE (POE-g- MAH), were employed to improve the performance of the foam composites, respectively, and their influences on the cellular structures, interfacial morphologies and mechanical properties of PP foam composites were investigated. It was found that the compatilizers resulted in modified PP foam composites characterized by uniform cell size distribution, reduced cell size and increased cell density except POE/SGF/PP with POE-g-MAH. The obvious enhanced SGF-matrix interfacial bonding was observed from the SEM examination, and POE-g-MAH also facilitated the compatibility between elastomeric particles and matrix. Testing results indicated that, by the introduction of PP-g-MAH or POE-g-MAH, the mechanical properties of PP foam composites were significantly improved, and it seemed that the PP-g-MAH was more effective in strengthening the flexural and compressive strength while POE-g-MAH greatly increased the impact toughness.

scholarly journals Experimental-numerical studies of the effect of cell structure on the mechanical properties of polypropylene foams

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 713-723
Author(s):  
Wei Gong ◽  
Tuan-Hui Jiang ◽  
Xiang-Bu Zeng ◽  
Li He ◽  
Chun Zhang
Keyword(s):  
Mechanical Properties ◽  
Size Distribution ◽  
Cell Size ◽  
Cell Structure ◽  
Structure Parameters ◽  
Cell Size Distribution ◽  
Numerical Studies ◽  
Polypropylene Foam ◽  
The Impact ◽  
The Relationship

AbstractThe effects of the cell size and distribution on the mechanical properties of polypropylene foam were simulated and analyzed by finite element modeling with ANSYS and supporting experiments. The results show that the reduced cell size and narrow size distribution have beneficial influences on both the tensile and impact strengths. Decreasing the cell size or narrowing the cell size distribution was more effective for increasing the impact strength than the tensile strength in the same case. The relationship between the mechanical properties and cell structure parameters has a good correlation with the theoretical model.

Impact-Resistant Polypropylene/Short Glass Fiber Composites with Far-Infrared Emission: Manufacturing Technique and Property Evaluation

2013 ◽  
Vol 365-366 ◽  
pp. 1148-1151 ◽  
Author(s):  
Jia Horng Lin ◽  
Zheng Yan Lin ◽  
Jin Mao Chen ◽  
Chen Hung Huang ◽  
Ching Wen Lou
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Glass Fibers ◽  
Far Infrared ◽  
Infrared Emission ◽  
Infrared Emissivity ◽  
Short Glass Fiber ◽  
Property Evaluation ◽  
The Impact ◽  
Short Glass

This study produces the far-infrared emitting composites by using impact-resistant polypropylene, short glass fibers, and far-infrared masterbatches. The addition of short glass fiber and far-infrared masterbatches is then evaluated to determine their influence on the mechanical properties and far-infrared emissivity of the resulting composites. The experimental results show that with an increase in the content of short glass fibers, the tensile strength increases from 34 MPa to 56 MPa, the far-infrared emissivity increases from 0.85 to 0.93, but the impact strength decreases from 1037 J/m to 197 J/m, proving that the resulting composites have desired mechanical properties and far-infrared emission.

scholarly journals Effect of Maleic Anhydride Modification on the Mechanical Properties of a Highly Filled Glass Fibre Reinforced, Low-Viscosity Polypropylene for Injection Moulding

2016 ◽  
Vol 5 (2) ◽  
pp. 105
Author(s):  
Jurgen Troltzsch ◽  
Jonas Stiller ◽  
Katja Hase ◽  
Isabelle Roth ◽  
Frank Helbig ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Maleic Anhydride ◽  
Glass Fibre ◽  
Tensile Modulus ◽  
Weight Percent ◽  
Fibre Content ◽  
Impact Properties ◽  
High Fibre ◽  
The Impact ◽  
Short Glass

<p class="1Body">Short glass fibre reinforcement is one of the most important measures to improve the mechanical properties of injection moulded parts. The need for increasing performance leads to high fibre contents which is a critical fact due to the contrasting behaviour of strength, stiffness and impact properties. In this study a high-fluidity polypropylene (PP) is compounded with short glass fibres up to 70 weight percent and comparatively investigated with the adding of maleic anhydride (MAH) as compatibilizer. Due to the high fluidity of the PP, which ensures a good embedding of the fibres, the tensile modulus increases up to 65 weight percent, tensile strength up to 50 weight percent of glass fibre content. Adding the MAH increases strength and impact properties, while the tensile modulus only shows an improvement at high fibre content. The influence of the compatibilizer effect diminishes at higher fibre contents, especially for the impact strength which could so far not be clarified exactly. Reasons could be the reduction of fibre length at higher fibre contents and the increasing influence of the brittle fibre component. With the adding of MAH the contrasting behaviour of the impact properties in comparison to strength and stiffness can be reduced and the optimum over all mechanical properties can be shifted to higher fibre contents.</p>

scholarly journals Effect of Maleic Anhydride Modification on the Mechanical Properties of a Highly Filled Glass Fibre Reinforced, Low-Viscosity Polypropylene for Injection Moulding

2016 ◽  
Vol 5 (2) ◽  
pp. 111 ◽  
Author(s):  
Jurgen Troltzsch ◽  
Jonas Stiller ◽  
Katja Hase ◽  
Isabelle Roth ◽  
Frank Helbig ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Maleic Anhydride ◽  
Glass Fibre ◽  
Tensile Modulus ◽  
Weight Percent ◽  
Fibre Content ◽  
Impact Properties ◽  
High Fibre ◽  
The Impact ◽  
Short Glass

<p class="1Body">Short glass fibre reinforcement is one of the most important measures to improve the mechanical properties of injection moulded parts. The need for increasing performance leads to high fibre contents which is a critical fact due to the contrasting behaviour of strength, stiffness and impact properties. In this study a high-fluidity polypropylene (PP) is compounded with short glass fibres up to 70 weight percent and comparatively investigated with the adding of maleic anhydride (MAH) as compatibilizer. Due to the high fluidity of the PP, which ensures a good embedding of the fibres, the tensile modulus increases up to 65 weight percent, tensile strength up to 50 weight percent of glass fibre content. Adding the MAH increases strength and impact properties, while the tensile modulus only shows an improvement at high fibre content. The influence of the compatibilizer effect diminishes at higher fibre contents, especially for the impact strength which could so far not be clarified exactly. Reasons could be the reduction of fibre length at higher fibre contents and the increasing influence of the brittle fibre component. With the adding of MAH the contrasting behaviour of the impact properties in comparison to strength and stiffness can be reduced and the optimum over all mechanical properties can be shifted to higher fibre contents.</p>

Phase Structures and Mechanical Properties of SGF/PP Composites with and without Compatilizers

2013 ◽  
Vol 668 ◽  
pp. 33-36 ◽  
Author(s):  
Ji Nian Yang ◽  
Ai Qin Xu
Keyword(s):  
Mechanical Properties ◽  
Maleic Anhydride ◽  
Testing Machine ◽  
The Novel ◽  
Phase Structures ◽  
Short Glass Fiber ◽  
Universal Testing ◽  
Impact Tester ◽  
Pp Composites ◽  
Short Glass

The short glass fiber (SGF)/polypropylene (PP) composites were prepared by extrusion and subsequently injection processes. The evolution of phase structures and mechanical properties of SGF/PP composites were performed using scanning electron microscopy (SEM), contact angle tensiometer, universal testing machine and impact tester. The results show that the interfacial adhesion between SGF and matrix were enhanced significant with the presence of maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted ethylene-1-octene copolymer (EOC-g-MAH). Moreover, the EOC-g-MAH promoted to form the novel configuration of EOC-g-MAH particles adhered firmly onto SGF surfaces, which resulted in the much higher impact toughness and tensile strength.

Study on the Morphologies and Mechanical Properties of PP/EOC/SGF Composites with and without Compatilizers

2013 ◽  
Vol 331 ◽  
pp. 387-390
Author(s):  
Ji Nian Yang ◽  
Ai Qin Xu
Keyword(s):  
Mechanical Properties ◽  
Impact Toughness ◽  
Maleic Anhydride ◽  
Glass Fiber ◽  
Interfacial Adhesion ◽  
Phase Structures ◽  
Short Glass Fiber ◽  
Pp Composites ◽  
Short Glass ◽  
Embedded Configuration

The polypropylene/ethylene-1-octene/short glass fiber (PP/EOC/SGF) ternary composites were prepared by extrusion and subsequent injection processes. The effects of compatilizers, including maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted EOC (EOC-g-MAH), on the evolution of phase structures and mechanical properties of PP composites were examined. Results show that the interfacial adhesion between SGF and matrix are enhanced significantly. Moreover, the EOC-g-MAH promotes to form the elastomeric particle-embedded configuration. Mechanical testing reveals that the PP/EOC/SGF composites characterized by much higher impact toughness and keeping the competitively tensile properties could be obtained through co-incorporation of SGF and EOC as well as right compatilizers adopted.

The Synergy Effects of Styrene-Maleic Anhydride Copolymer and Epoxy Resin on Interface Adhesion of ABS/Short Glass Fiber Composites

2011 ◽  
Vol 415-417 ◽  
pp. 85-93 ◽  
Author(s):  
Jian Bing Guo ◽  
Bin Xue ◽  
Min He ◽  
Hui Ju Shao ◽  
Shu Hao Qin
Keyword(s):  
Mechanical Properties ◽  
Maleic Anhydride ◽  
Fiber Composites ◽  
Interfacial Interaction ◽  
Glass Fiber Composites ◽  
Short Glass Fiber ◽  
Synergy Effects ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer ◽  
Short Glass

The effects of styrene-maleic anhydride copolymer (SMA) and epoxy resin (ER) on the interfacial interaction of Acrylonitrile-butadiene-styrene terpolymer/Short glass fiber composites were investigated by means of scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), and mechanical properties. The experimental results demonstrate that SMA and ER could effectively improve interfacial interaction between the ABS and SGF. Based on SEM, good interfacial adhesion between ABS and SGF in ABS/SMA/ER/SGF and ABS/ER/SGF composites was observed. DMA results showed that SMA and ER decreased the glass transition temperature (Tg) and height of tanδ compared with ABS/SGF composites. The synergy effects of SMA and ER on the interface interaction was investigated. All results in this paper were consistent, and showed a good interaction between ABS and SGF, which was proven by the mechanical properties of the composites.

The Influence of Alumina Filler on Impact Properties of Short Glass Fiber Reinforced Epoxy

2013 ◽  
Vol 393 ◽  
pp. 88-93 ◽  
Author(s):  
Mohd Shahneel Saharudin ◽  
Aidah Jumahat ◽  
Amir Z.A. Kahar ◽  
Shaharudin Ahmad
Keyword(s):  
Glass Fiber ◽  
Fiber Reinforced ◽  
Depth Of Penetration ◽  
Impact Properties ◽  
Impact Time ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
The Impact ◽  
Total Impact ◽  
Short Glass

mpact resistance is one of the main consideration in measuring service life, liability and safety of polymer composite structures or products. Impact resistance of a composite material can be measured in terms of energy absorption, depth of penetration and total impact time. In this study, the influence of alumina Al2O3on impact properties of short glass fiber reinforced polymer was investigated. The drop weight impact tests were performed in accordance to ASTM D7136 standard using Dynatup impact tester. Based on the results, the incorporation of micronsize alumina filler enhanced the energy absorbed during crushing, reduced the depth of penetration of the impactor and expanded the total impact time hence improved the impact properties of the composites.

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