Effects of Calcium Carbonate on the Thermal Properties of Acrylonitrile-Butadiene-Styrene/Calcium Carbonate Composites

2013 ◽  
Vol 834-836 ◽  
pp. 276-280
Author(s):  
Xiao Juan Bai ◽  
Ling Wang
Keyword(s):  
Thermal Properties ◽  
Calcium Carbonate ◽  
Loss Rate ◽  
Acrylonitrile Butadiene Styrene ◽  
Mixed Gas ◽  
Scanning Calorimetry ◽  
Weight Loss Rate ◽  
Thermal Stability Of ◽  
Butadiene Styrene ◽  
Maximum Weight Loss

Calcium carbonate (CaCO3) is a filler widely used in plastics. In this study, the effects of CaCO3content and size on the thermal properties of acrylonitrile-butadiene-styrene (ABS)/CaCO3composites were determined by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). TGA results in nitrogen showed that the maximum weight loss rate of the composites gradually decreased with increasing CaCO3content. TGA results in a mixed gas containing oxygen showed that CaCO3addition facilitated the degradation of ABS, and ABS degradation was completed at relatively low temperatures. The effect of nano-CaCO3on the thermal stability of the composites was similar to that of microsized CaCO3.

The Effect of Corn Stalk Microcrystalline Cellulose on Thermal and Mechanical Properties of Chitosan Composites

2012 ◽  
Vol 174-177 ◽  
pp. 1038-1041 ◽  
Author(s):  
Chun Guang Li ◽  
Xiang Ping Wang ◽  
Lei Liu ◽  
Jie Hu Cui ◽  
Rui Zhang
Keyword(s):  
Thermal Properties ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Loss Rate ◽  
Composite Films ◽  
Corn Stalk ◽  
Weight Loss Rate ◽  
Elongation At Break ◽  
Biodegradable Composite ◽  
Maximum Weight Loss

The biodegradable composite films were prepared from corn stalk microcrystalline cellulose as filler and chitosan as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. The results show that the tensile properties and thermal properties were improved with the addition of corn stalk microcrystalline cellulose. When corn stalk microcrystalline cellulose account for 10% of the chitosan quality, the initial decomposition and maximum weight loss rate temperature was raised by 13.19°C and 38.84°C, tensile strength increased by 83.55% and elongation at break increased by 77.38% compared to those of pure chitosan

Thermal Properties of the Polyolefin Based Elastic Filament DOW XLATM

2012 ◽  
Vol 627 ◽  
pp. 143-146
Author(s):  
Ni Wang ◽  
Zhao Lin Liu ◽  
Xi Ting Chen
Keyword(s):  
Heat Treatment ◽  
Thermal Properties ◽  
Loss Rate ◽  
Elastic Recovery ◽  
Treatment Temperature ◽  
Scanning Calorimetry ◽  
Weight Loss Rate ◽  
Highest Weight ◽  
Heat Treated ◽  
Elastic Filament

Thermal properties of the elastic filament DOW XLATMwere analyzed by differential scanning calorimetry (DSC) and thermogravimetry analysis (TG). Besides, the elastic recovery characteristics after heat treatment were also discussed. The DSC scan shows typical endotherms and its melting temperature (Tm) ranges from 28 °C- 65 °C. TG analysis indicates that the thermal degradation begins at 285 °C and the highest weight loss rate occurs at 461.9 oC. When the filaments are heat treated under relaxation or at constant elongatiSuperscript texton, their elastic recovery ratios all decrease with the increase of the heat treatment temperature except for 50 °C.

Mechanical and thermal characterization of grafted PP-NCC nanocomposites

2019 ◽  
pp. 089270571987822
Author(s):  
Saud Aldajah ◽  
Mohammad Y Al-Haik ◽  
Waseem Siddique ◽  
Mohammad M Kabir ◽  
Yousef Haik
Keyword(s):  
Thermal Properties ◽  
Interfacial Adhesion ◽  
Thermal Characterization ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Three Point Bending ◽  
Twin Screw ◽  
Thermal Stability Of

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

Synthesis and properties of a benzoxazine monomer containing maleimide and biphenyl groups

2021 ◽  
pp. 095400832199674
Author(s):  
Tao Guo ◽  
Yang Fan ◽  
Chang Bo ◽  
Zhang Qi ◽  
Han Tao ◽  
...  
Keyword(s):  
Weight Loss ◽  
Loss Rate ◽  
Proton Nuclear Magnetic Resonance ◽  
Significant Weight Loss ◽  
Scanning Calorimetry ◽  
Weight Loss Rate ◽  
Reaction Heat ◽  
H Nmr ◽  
Curing Reaction ◽  
Dsc Curves

Benzoxazine resin exhibits excellent properties and is widely used in many fields. Herein, the synthesis of a novel compound, the bis(2,4-dihydro-2 H-3-(4- N-maleimido)phenyl-1,3-benzoxazinyl)biphenyl (BMIPBB), has been reported, which was synthesized by reacting N-(4-aminophenyl)maleimide (APMI), formaldehyde, and 4,4’-dihydroxybiphenyl. 1,3,5-three(4-(maleimido)phenyl)-1,3,5-triazine (TMIPT) was formed as an intermediate during the reaction. The proton nuclear magnetic resonance (1H-NMR) and Fourier transform-infrared (FTIR) spectroscopy experiments were conducted to determine the structure of BMIPBB. BMIPBB was obtained as a reddish-brown solid in 40.1% yield. The thermal properties of BMIPBB were investigated using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) techniques. Analysis of the DSC curves revealed that the broad peak representing the release of curing reaction heat appeared in the temperature range of 140–330°C. The peak temperature was 242.59°C and the heat of the reaction was 393.82 J/g, indicating that the rate of the curing reaction was low and the heat of the reaction was high. Analysis of the TGA results revealed that the weight loss rate was 5% at 110°C. The monomer exhibited a significant weight loss in the range of 320–500°C. The compound lost 50% of its weight at a temperature of 427°C.

scholarly journals Thermogravimetric analysis of empty fruit bunch

2018 ◽  
Vol 225 ◽  
pp. 02002 ◽  
Author(s):  
Girma T. Chala ◽  
Ying P. Lim ◽  
Shaharin A. Sulaiman ◽  
Chin L. Liew
Keyword(s):  
Thermogravimetric Analysis ◽  
Heat Flow ◽  
Loss Rate ◽  
Renewable Energy Sources ◽  
Thermal Reaction ◽  
Maximum Temperature ◽  
Empty Fruit Bunch ◽  
Weight Loss Rate ◽  
Minimum Heat ◽  
Maximum Weight Loss

This paper presents the characteristics of empty fruit bunch (EFB) using thermogravimetric analysis (TGA) and shows its potential as a renewable energy sources. A set of data were collected from the thermal reaction and plotted in mass or percentage of the initial mass against either temperature or time, respectively. In the thermogravimetric analysis, mass, temperature and time were considered as base measurements and important data for derivative thermogravimetric (DTG) curve were analysed while many additional measures could be derived from these three base measurements. It was observed that heating rate of 8.5°C/min and air flow rate of 85mL/min provided a maximum weight loss rate of 0.209%/°C at the temperature of 313.5°C and the derivative weight peak of -0.1895mg/°C at 292°C. The time taken to reach the maximum temperature of 899.9°C was 46.74 minutes, and ΔT endo-up reflected minimum point of -0.2°C at 15.82 minutes and maximum ΔT endo-up of 888°C at 42 minutes. Heat flow endo-up also showed that the minimum heat flow was 15.39mW at 15.85 minutes and reaching the peak heat flow endo-up of 47.73mW at 43.27 minutes.

scholarly journals Preparation of Maleic Anhydride Grafted Poly(trimethylene terephthalate) (PTT-g-MA) by Reactive Extrusion Processing

2019 ◽  
Vol 3 (2) ◽  
pp. 37 ◽  
Author(s):  
Natália F. Braga ◽  
Henrique M. Zaggo ◽  
Thaís L. A. Montanheiro ◽  
Fabio R. Passador
Keyword(s):  
Thermal Properties ◽  
Maleic Anhydride ◽  
Acrylonitrile Butadiene Styrene ◽  
Reactive Extrusion ◽  
Processing Route ◽  
Parallel Plates ◽  
Reactive Processing ◽  
Scanning Calorimetry ◽  
Trimethylene Terephthalate ◽  
Compatibilizing Agent

Maleic anhydride (MA) grafted with poly(trimethylene terephthalate) (PTT)—abbreviated as PTT-g-MA—can be used as a compatibilizing agent to improve the compatibility and dispersion of nanofillers and a dispersed polymer phase into PTT matrix. This work suggests the preparation of PTT-g-MA using a mixture of PTT, MA, and benzoyl peroxide (BPO) by a reactive extrusion process. PTT-g-MA was characterized to confirm the grafting reaction of maleic anhydride on PTT chains by Fourier transform infrared (FTIR) spectroscopy. Thermal properties (differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)) and rheological analysis (parallel plates rheology) were used to prove the changes that occurred after the graphitization reaction. The reactive processing route allowed the production of the compatibilizing agent (PTT-g-MA) with good thermal properties and with lower viscosity compared to neat PTT, and this could be an alternative for the compatibilization of polymer blends, as example for PTT/ABS (acrylonitrile butadiene styrene) blends and nanocomposites based on PTT matrix.

Epoxy Cured with Anhydride Terminated Polydimethylsiloxane: Cure Kinetics and Thermal Properties

2011 ◽  
Vol 415-417 ◽  
pp. 261-264
Author(s):  
Yuan Ren ◽  
Zheng Xi ◽  
Wen Jun Gan ◽  
Liang Zhang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Activation Energy ◽  
Thermal Stability ◽  
Thermal Properties ◽  
Succinic Anhydride ◽  
Cure Kinetics ◽  
Diglycidyl Ether ◽  
Scanning Calorimetry ◽  
Thermogravimetric Analyses ◽  
Isothermal Measurements ◽  
Thermal Stability Of

A siloxane-containing dianhydride, succinic anhydride terminated polydimethylsiloxane (DMS-Z21) was selected to cure diglycidyl ether of bisphenol-A based epoxy resin (DGEBA). The cure kinetics and thermal properties were investigated by nonisothermal and isothermal differential scanning calorimetry (DSC) and thermogravimetric analyses (TGA), respectively. The activation energy (Ea) of the curing reaction was obtained based on the methods of Kissinger and isothermal measurements. The results of the thermogravimetric analyses of the DGEBA/DMS-Z21 system showed that the thermal stability of the DGEBA/DMS-Z21 system was slightly higher than the DGEBA/MeTHPA system.

Effect of Fumed Silica and Zinc Borate on the Thermogravimetric Analysis Curves of ABS/Magnesium Hydroxide Composite

2014 ◽  
Vol 599-601 ◽  
pp. 183-186
Author(s):  
Zhang Ting Li ◽  
Yue Qun Lu ◽  
Li Li Fan ◽  
Pei Bang Dai ◽  
Xia Su ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Fumed Silica ◽  
Acrylonitrile Butadiene Styrene ◽  
Zinc Borate ◽  
Processing Temperature ◽  
Great Decrease ◽  
Thermal Stability Of ◽  
Butadiene Styrene

For achieving sufficient flame retardancy, high magnesim hydroxide (MH) content is needed in MH flame retardant Acrylonitrile-butadiene-styrene copolymer (ABS) composites (ABS/MH), which will cause a great decrease in mechanical property and difficulty in preparing samples for measurement. We prepared ABS/MH filled high 60.0% flame retardant by compounding ABS and modified flame retardant MH, fumed silica (SiO2) and zinc borate (ZB) via TX-10 phosphate/polyacrylate latex and studied the effect of a small amount of SiO2 and ZB with MH in ABS for improving the thermal decomposition of ABS/MH. The thermal stability of the modified flame retardant could meet the processing temperature of ABS. The incorporation of ZB, SiO2 or SiO2/ZB could improve the thermal stability of ABS/MH.

Effect of acrylonitrile–butadiene–styrene terpolymer on the foaming behavior of polypropylene

2019 ◽  
Vol 38 (3-4) ◽  
pp. 47-67 ◽  
Author(s):  
Xiao-Tian Tan ◽  
Ying-Guo Zhou ◽  
Jing-Jing Zhou ◽  
Bin-Bin Dong ◽  
Chun-Tai Liu ◽  
...  
Keyword(s):  
Acrylonitrile Butadiene Styrene ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Suitable Candidate ◽  
Torque Rheometry ◽  
Cell Nucleation ◽  
Foaming Behavior ◽  
Thermal Features ◽  
Influence Of Crystallization ◽  
Butadiene Styrene

To improve the cellular foam structure of common polypropylene (PP), acrylonitrile–butadiene–styrene terpolymer (ABS) and compatibilizer were used to blend with PP, and the foaming behavior of PP/ABS blends was investigated. The solid and foamed samples of the PP/ABS blend with different component were first fabricated by melt extrusion followed by conventional injection molding with or without a blowing agent. The mechanical properties, thermal features, and rheological characterizations of these samples were studied using the tensile test, dynamic mechanical analyzer, differential scanning calorimetry, scanning electron microscopy, X-ray diffraction, and torque rheometry. The results suggest that ABS is a suitable candidate to improve the foamability of PP. The effect of ABS and compatibilizer on the foamability of PP can be attributed to three possible mechanisms, that is, the weak interaction between phases that facilitates cell nucleation, the improved gas-melt viscosity that prevents the escape of gas, and the influence of crystallization behavior that helps to form a fine foaming structure.

Study on the Properties of Blends between Acrylonitrile-Butadiene Rubber and Acrylonitrile-Butadiene-Styrene or Poly(Styrene-co-Acrylonitrile)

2013 ◽  
Vol 812 ◽  
pp. 192-197
Author(s):  
Wuttison Yasinee ◽  
Thongyai Supakanok ◽  
Wacharawichanant Sirirat ◽  
Piyasan Praserthdam
Keyword(s):  
Thermal Properties ◽  
Testing Machine ◽  
Acrylonitrile Butadiene Styrene ◽  
Mechanical Analysis ◽  
Gravimetric Analysis ◽  
Butadiene Rubber ◽  
Tensile Testing Machine ◽  
Acrylonitrile Butadiene Rubber ◽  
Binary Polymer ◽  
Butadiene Styrene

Acrylonitrile-butadiene rubber (NBR) or nitrile rubber is an unsaturated copolymer of butadiene and acrylonitrile. NBR has been widely used for fuel hoses, seals and gaskets due to its excellent oil and fuel resistance. Aiming to develop NBR which has resistance to oxygenated solvent, NBR with acrylonitrile content of 34 wt%, was blended with Acrylonitrile-butadiene-styrene (ABS) and Poly (Styrene-co-Acrylonitrile) (SAN) as binary polymer systems. The NBR/ABS and SAN blends were prepared by mechanical blending in the composition of 80/20, 70/30 and 60/40 w/w. The effects of ABS or SAN content on mechanical, morphological and thermal properties were investigated and compared with commercials NBR. Mechanical properties were determined using the tensile testing machine. The morphologies of polymer blends were investigated using scanning electron microscope (SEM). The thermal properties were examined using differential scanning calorimeter (DSC), thermal gravimetric analysis (TGA) and dynamic mechanical analysis (DMA). It has been found that percent compatibility of ABS and SAN into NBR rich phase are 2.69 and 1.53 wt% respectively.

Sign in / Sign up

Export Citation Format

Share Document