Preparation and Properties of Polyvinyl Chloride/Nitrile Butadiene Rubber/Barium Sulfate Composites

2011 ◽  
Vol 311-313 ◽  
pp. 335-338
Author(s):  
Hao Wu ◽  
You Ming Cao
Keyword(s):  
Tensile Strength ◽  
Barium Sulfate ◽  
Decomposition Temperature ◽  
Butadiene Rubber ◽  
Melt Blending ◽  
Scanning Electron Microscopy Photograph ◽  
Initial Decomposition Temperature ◽  
Elongation At Break ◽  
Blending Method ◽  
Thermal Stability Of

The composites composed of PVC, NBR and BaSO4 particles were prepared by melt blending method. The mechanical properties, microstructure and thermal stability of the composites were investigated. The results indicated that the elongation at break of PVC was greatly improved by addition of NBR, while the tensile strength was decreased. The elongation at break and the tensile strength of PVC/NBR composites first increased and then decreased with the increasing content of BaSO4, and the maximum were emerged at 5phr BaSO4 addition. The initial decomposition temperature of the composites composed of PVC, NBR and BaSO4 is 10.79°C greater than that of the composites composed of PVC and NBR. The scanning electron microscopy photograph showed that NBR and BaSO4 particles were uniformly dispersed in the PVC matrix when the addition of NBR and BaSO4 particles was low.

A Study of Polyvinyl Chloride Modified by Barium Sulfate

2011 ◽  
Vol 117-119 ◽  
pp. 1402-1405
Author(s):  
Hao Wu ◽  
You Ming Cao
Keyword(s):  
Barium Sulfate ◽  
Tensile Fracture ◽  
Melt Blending ◽  
Toughening Mechanism ◽  
Fracture Characteristics ◽  
Elongation At Break ◽  
Tensile Yield Stress ◽  
Tensile Fracture Surface ◽  
Blending Method ◽  
Thermal Stability Of

PVC/BaSO4 composites were prepared by melt blending method. The mechanical properties, microstructure and thermal stability of the composites were investigated. The results indicated that BaSO4 decreased the tensile yield stress and improved the elongation at break of PVC composites. Ductile fracture characteristics such were observed in the tensile fracture surface of PVC/BaSO4 composites. The toughening mechanism was cavitations toughening mechanism and shear zone toughening mechanism. The reaction of dehydrochlorination was limited by the addition of BaSO4.

scholarly journals Fabrication and Characterization of Biodegradable Composites from Poly (Butylene Succinate-Co-Butylene Adipate) and Taihu Lake Blue Algae

2017 ◽  
Vol 26 (5) ◽  
pp. 096369351702600 ◽  
Author(s):  
Wenjing Xia ◽  
Nianqing Zhu ◽  
Zhongbin Ni ◽  
Mingqing Chen
Keyword(s):  
Tensile Strength ◽  
Taihu Lake ◽  
Mechanical Performance ◽  
Value Added ◽  
Melt Blending ◽  
Butylene Succinate ◽  
Elongation At Break ◽  
Biodegradable Composites ◽  
Thermal Stability Of

Biodegradable composites from poly (butylene succinate-co-butylene adipate) (PBSA) and Taihu Lake (Wuxi, China) blue algae were prepared by melt blending. The property and structure of biocomposites were investigated. By adding extra amount of water to blue algae, the formulated blue algae acted as a plastic in the composites during blending, and exhibited a reinforcing effect on the PBSA matrix. With increasing blue algae content, the thermal stability of the composites decreased; the tensile strength at break and elongation at break of the composites reduced, but the Young's modulus of the composites increased. However, the composite with 30% blue algae loading still exhibited good mechanical performance (tensile strength at break of 21.3 MPa, elongation at break of 180%). The fabrication of value-added PBSA/algae composites appeared as an effective approach to reduce the secondary environmental pollution of Taihu blue algae.

Mechanical Properties of Poly(3-hydrobutyrate-co-hydroxyvalerate)/ Biodegradable Hyperbranched Poly(ester amide) Blends

2013 ◽  
Vol 745-746 ◽  
pp. 436-441
Author(s):  
Pei Liu ◽  
Long Chen ◽  
Jun Xu ◽  
Mei Fang Zhu ◽  
Zong Yi Qin
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Tensile Elongation ◽  
High Dispersion ◽  
Melt Blending ◽  
Elongation At Break ◽  
Biodegradable Composites ◽  
Hyperbranched Poly ◽  
Blending Method ◽  
Fracture Morphologies

Biodegradable composites were prepared by adding hyperbranched poly (ester amide) (HBPs) into poly (3-hydroxybutyrate-co-3-hydrovalerate) (PHBV) through melt blending method. It was found that the tensile strength and toughness of PHBV were simultaneously enhanced by the addition of HBPs. Compared with neat PHBV, the tensile strength of the composite increased about 23% from 20.96 to 25.87 MPa for the content of 2.5 wt.% HBPs, and more remarkable enhancement in tensile elongation at break can be achieved by about 88% for 5 wt.% HBPs. The influences of HBPs on crystallization, thermal and fracture morphologies of PHBV were further evaluated by using differential scanning calorimeter and scanning electron microscope, respectively. The decrease in the crystallinity of PHBV and high dispersion of the HBPs in PHBV matrix were observed, which should contribute to the improvement on the mechanical properties of PHBV.

Preparation and Properties of Castor Oil-Based Waterborne Polyurethane Terminated

2012 ◽  
Vol 427 ◽  
pp. 98-103 ◽  
Author(s):  
Wei Hong ◽  
Qing Shan Li ◽  
Wei An Yu ◽  
Jing Sun ◽  
Jun Liu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Water Absorption ◽  
Castor Oil ◽  
Waterborne Polyurethane ◽  
Decomposition Temperature ◽  
Latex Film ◽  
Initial Decomposition Temperature ◽  
Elongation At Break ◽  
R Value ◽  
The Stability

Prepared a series of castor oil modified NaHSO3 waterborne blocked polyurethane, discussed the influence on the emulsion stability by C.O. addition amount, R value, DMPA and the influences on latex film mechanical property and water absorption by C.O. content, R value. Then analyzed the characterization by FTIP and DSC, its shown that emulsion is stable when the R value controlled in the range of 1.4~1.8 and the stability will become poor with the increase of C.O. content; and with the increase of R value the elongation at break of latex film reduced and tensile strength increased. In short the C.O.s mixing can make latex film initial decomposition temperature increased by 60, reduced elongation at break, increased tensile strength and reduced the water absorption.

Comparative Study of NR/BR/PP and NR/NBR/PP Ternary Blends for High Abrasion Resistant Thermoplastic Vulcanizates

2013 ◽  
Vol 844 ◽  
pp. 131-134 ◽  
Author(s):  
Soriya Inted ◽  
Natinee Lopattananon ◽  
Bencha Thongnuanchan ◽  
Azizon Kaesaman
Keyword(s):  
Abrasion Resistance ◽  
Butadiene Rubber ◽  
Melt Blending ◽  
Melt Mixing ◽  
Elongation At Break ◽  
Rubber Blends ◽  
Vulcanized Rubber ◽  
Blending Method ◽  
Thermoplastic Vulcanizates ◽  
Pp Blends

High abrasion thermoplastic vulcanizates (TPVs) based on natural rubber (NR)/butadiene rubber (BR)/polypropylene (PP) and NR/acrylonitrile butadiene rubber (NBR)/PP were prepared using melt blending method. The rubber blends of 40/60 NR/BR and 40/60 NR/NBR were firstly prepared to investigate their mechanical and wear-resistant properties. The results indicated that the abrasion resistance of NR/BR blend was much higher than that of the NR/NBR blend, but the tensile strength and elongation at break were lower. TPVs made of NR/BR/PP and NR/NBR/PP blends were then prepared by melt-mixing the rubber blends (i.e., NR/BR or NR/NBR) and PP with composition of rubber to plastic of 60/40. It was found that the NR/BR/PP TPV showed higher strength and abrasion resistance when compared with the NR/NBR/PP TPV due to smaller domain of vulcanized rubber particles. The present study also suggested that the abrasion resistance of NR/BR/PP TPV was slightly lower than that of nylon 6.

scholarly journals Plasticized and Nanofilled Poly(Lactic Acid) Nanocomposites: Mechanical, Thermal and Morphology Properties

2016 ◽  
Vol 846 ◽  
pp. 429-433 ◽  
Author(s):  
Buong Woei Chieng ◽  
Ibrahim Nor Azowa ◽  
Yoon Yee Then ◽  
Yuet Ying Loo
Keyword(s):  
Thermal Stability ◽  
Plastic Deformation ◽  
Tensile Strength ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Elongation At Break ◽  
Epoxidized Palm Oil ◽  
Blending Method ◽  
Polymeric Chains

Poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) and containing epoxidized palm oil (EPO) as plasticizer were prepared by melt blending method. PLA was first plasticized by EPO to improve its flexibility and thereby overcome its problem of brittleness. Then, xGnP was incoporated into plasticized PLA to enhance its mechanical properteis. Plasticized and naonofilled PLA nanocomposites (PLA/EPO/xGnP) showed improvement in the elongation at break by 61% compared with plasticized PLA (PLA/EPO). The use of EPO and xGnP increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The nanocomposites also resulted in an increase of up to 26.5% in the tensile strength compared with PLA/EPO blend. PLA/EPO reinforced with xGnP shows that increasing the xGnP content triggers a substantial increase in thermal stability. The TEM image of PLA/EPO/xGnP shows that the xGnP was uniformly dispersed in the PLA matrix and no obvious aggregation is observed.

Pengaruh penambahan natural rubber (NR), epoxidation natural rubber (ENR-46) dan chlorprene rubber (CR) pada sifat kompon termoplastik

2020 ◽  
Vol 26 (2) ◽  
pp. 62-69
Author(s):  
Farida Ali ◽  
Tuti I. Sari ◽  
Andi A. Siahaan ◽  
Al-Kautsar D. Arya ◽  
Tri Susanto
Keyword(s):  
Tensile Strength ◽  
Natural Rubber ◽  
Vinyl Chloride ◽  
Butadiene Rubber ◽  
Elongation At Break ◽  
Nitrile Butadiene Rubber ◽  
Poly Vinyl Chloride

Penelitian ini untuk mengetahui pengaruh penambahan Natural Rubber (NR) dan Epoxidation Natural Rubber (ENR-46) dengan kompatibiliser Chlorprene Rubber (CR) pada aplikasi kompon termoplastik Poly Vinyl Chloride (PVC) dan Nitrile Butadiene Rubber (NBR), variabel penelitian meliputi ENR-46/PVC/NBR/CR, NR/PVC/NBR/CR dan CR-NR/PVC/NBR, CR-ENR-46/PVC/NBR. Parameter pengujian sifat fisik-mekanik : Hardness (Shore A), Tensile Strength (Mpa), Elongation at Break (%) dan ketahanan terhadap pelarut minyak (n-Pentane, Toluene, Hexane dan Pertalite). Hasil penelitian didapatkan untuk sifat fisik-mekanik, semakin banyak penambahan NR Kekerasan kompon termoplastik akan menurun, Tensile Strength dan Elongation at Break kompon akan meningkat begitu juga dengan CR-NR. Tetapi berbanding terbalik hasilnya untuk ENR-46 dan CR-ENR-46. Pengujian Ketahanan terhadap pelarut minyak semakin banyak penambahan ENR-46 Ketahanan kompon termoplastik terhadap pelarut akan meningkat, hasil yang sama juga pada CR-ENR-46. Tetapi berbanding terbalik hasilnya dengan penambahan NR dan CR-NR pada kompon termoplastik.

Mechanical, Thermal, and Morphological Properties of Thermoplastic Starch/Poly(lactic acid/Poly(butylene adipate-co-terephthalate) Blends

2014 ◽  
Vol 970 ◽  
pp. 312-316
Author(s):  
Sujaree Tachaphiboonsap ◽  
Kasama Jarukumjorn
Keyword(s):  
Lactic Acid ◽  
Impact Strength ◽  
Interfacial Adhesion ◽  
Tensile Modulus ◽  
Thermoplastic Starch ◽  
Morphological Properties ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Elongation At Break ◽  
Blending Method

Thermoplastic starch (TPS)/poly (lactic acid) (PLA) blend and thermoplastic starch (TPS)/poly (lactic acid) (PLA)/poly (butylene adipate-co-terephthalate) (PBAT) blend were prepared by melt blending method. PLA grafted with maleic anhydride (PLA-g-MA) was used as a compatibilizer to improve the compatibility of the blends. As TPS was incorporated into PLA, elongation at break was increased while tensile strength, tensile modulus, and impact strength were decreased. Tensile properties and impact properties of TPS/PLA blend were improved with adding PLA-g-MA indicating the enhancement of interfacial adhesion between PLA and TPS. With increasing PBAT content, elongation at break and impact strength of TPS/PLA blends were improved. The addition of TPS decreased glass transition temperature (Tg), crystallization temperature (Tc), and melting temperature (Tm) of PLA. Tgand Tcof TPS/PLA blend were decreased by incorporating PLA-g-MA. However, the presence of PBAT reduced Tcof TPS/PLA blend. Thermal properties of TPS/PLA/PBAT blends did not change with increasing PBAT content. SEM micrographs revealed that the compatibilized TPS/PLA blends exhibited finer morphology when compared to the uncompatibilized TPS/PLA blend.

Study on Synthesis and Thermal Property of Polyvinylamine

2010 ◽  
Vol 150-151 ◽  
pp. 1500-1503 ◽  
Author(s):  
Hong Chi Zhao ◽  
Qi Li ◽  
Wen Yu Xu ◽  
Fan Huang
Keyword(s):  
Decomposition Temperature ◽  
Characteristic Peak ◽  
Initial Decomposition Temperature ◽  
Nmr Spectrum ◽  
X Ray ◽  
Nuclear Magnetic Resonance Spectrometer ◽  
Chemical Structures ◽  
Thermogravimetric Analyzer ◽  
Infrared Spectrometer ◽  
Thermal Stability Of

Polyvinylamine (PVAm) and polyvinylamine chloride (PVAm•HCl) were synthesized by Hofmann degradation of polyacrylamide (PAM). The reaction condition is gentle and the operation is safe, simple and economical so that it is a good reaction method. The chemical structures and thermal properties of the polymers were studied by Fourier transform infrared spectrometer (FTIR), nuclear magnetic resonance spectrometer (NMR), X-ray diffractmeter (XRD) and thermogravimetric analyzer (TGA). Synthesis of PVAm•HCl was confirmed by the intensities of the characteristic peak of -CONH2 decreased and the appearance of a new absorption peak at 1530cm-1 (due to N-H bond of -NH3+ ) in the FTIR spectrum, the appearance of the characteristic absorption peaks of carbon atoms in the 13C NMR spectrum, the appearance of chemical shift assignments of proton in 1H NMR spectrum and the appearance of characteristic dispersing diffraction peak between 22.5° to 25.2° in the XRD spectrum, respectively. PAM had three decomposing stages, but PVAm•HCl had two decomposing stages. TG curve of PAM and PVAm•HCl showed that the initial decomposition temperature were 190oC and 140oC, respectively. The thermal stability of PVAm•HCl was poorer than that of PAM.

Tensile Properties of Polypropylene/Cocoa Pod Husk Biocomposites: Effect of Maleated Polypropylene

2013 ◽  
Vol 747 ◽  
pp. 645-648 ◽  
Author(s):  
Koay Seong Chun ◽  
Salmah Husseinsyah ◽  
Hakimah Osman
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Melt Blending ◽  
Elongation At Break ◽  
Maleated Polypropylene ◽  
Matrix Interaction ◽  
Cocoa Pod Husk ◽  
Blending Process ◽  
Scanning Electron

Polypropylene/Cocoa Pod Husk (PP/CPH) biocomposites with different maleated polypropylene (MAPP) content were prepared via melt blending process using Brabender Plastrograph mixer. The tensile strength and tensile modulus of PP/CPH biocomposites increased with increasing of MAPP content. The PP/CPH biocomposites with 5 phr of MAPP showed the optimum improvement on tensile properties. However, the increased of MAPP content reduced the elongation at break of PP/CPH biocomposites. At 5 phr of MAPP content, PP/CPH biocomposites showed lowest elongation at break. Scanning electron microscope confirms the PP/CPH biocomposites with MAPP have better filler-matrix interaction and adhesion due to the effect of MAPP.

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