Synthesis, Heat Resistance, and Mechanical Properties of Cross-Linked Urethane–Imide Copolymers Containing Blocks of Two Structurally Different Aliphatic Fragments (Polyether and Polyester) in the Backbone

2021 ◽  
Vol 94 (9) ◽  
pp. 1240-1258
Author(s):  
A. L. Didenko ◽  
A. G. Ivanov ◽  
E. A. Bogdanova ◽  
V. E. Smirnova ◽  
G. V. Vaganov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Resistance

scholarly journals Study of the Preparation and Properties of TPS/PBSA/PLA Biodegradable Composites

2021 ◽  
Vol 5 (2) ◽  
pp. 48
Author(s):  
Yuxuan Wang ◽  
Yuke Zhong ◽  
Qifeng Shi ◽  
Sen Guo
Keyword(s):  
Mechanical Properties ◽  
Heat Resistance ◽  
Thermoplastic Starch ◽  
Sem Analysis ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry ◽  
Melt Mixing ◽  
Two Phase ◽  
Biodegradable Composites ◽  
Phase Compatibility

Thermoplastic starch/butyl glycol ester copolymer/polylactic acid (TPS/PBSA/PLA) biodegradable composites were prepared by melt-mixing. The structure, microstructure, mechanical properties and heat resistance of the TPS/PBSA/PLA composites were studied by Fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), tensile test and thermogravimetry tests, respectively. The results showed that PBSA or PLA could bind to TPS by hydrogen bonding. SEM analysis showed that the composite represents an excellent dispersion and satisfied two-phase compatibility when the PLA, TPS and PBSA blended by a mass ration of 10, 30, and 60. The mechanical properties and the heat resistance of TPS/PBSA/PLA composite were improved by adding PLA with content less than 10%, according to the testing results.

scholarly journals Exceptional Mechanical Properties and Heat Resistance of Photocurable Bismaleimide Ink for 3D Printing

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1708
Author(s):  
Wenqiang Hua ◽  
Qilang Lin ◽  
Bo Qu ◽  
Yanyu Zheng ◽  
Xiaoying Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Heat Resistance ◽  
Three Dimensional ◽  
Mechanical And Thermal Properties ◽  
Amino Group ◽  
Building Models ◽  
Fast Processing ◽  
Forming Precision ◽  
Complex Structural

Photosensitive resins used in three-dimensional (3D) printing are characterized by high forming precision and fast processing speed; however, they often possess poor mechanical properties and heat resistance. In this study, we report a photocurable bismaleimide ink with excellent comprehensive performance for stereolithography (SLA) 3D printing. First, the main chain of bismaleimide with an amino group (BDM) was synthesized, and then, the glycidyl methacrylate was grafted to the amino group to obtain the bismaleimide oligomer with an unsaturated double bond. The oligomers were combined with reaction diluents and photo-initiators to form photocurable inks that can be used for SLA 3D printing. The viscosity and curing behavior of the inks were studied, and the mechanical properties and heat resistance were tested. The tensile strength of 3D-printed samples based on BDM inks could reach 72.6 MPa (166% of that of commercial inks), glass transition temperature could reach 155 °C (205% of that of commercial inks), and energy storage modulus was 3625 MPa at 35 °C (327% of that of commercial inks). The maximum values of T-5%, T-50%, and Tmax of the 3D samples printed by BDM inks reached 351.5, 449.6, and 451.9 °C, respectively. These photocured BDM inks can be used to produce complex structural components and models with excellent mechanical and thermal properties, such as car parts, building models, and pipes.

Investigation of the Effect of the Length and Content of Carbon Fibers on the Properties of Polyphenylene Sulfide

2020 ◽  
Vol 869 ◽  
pp. 474-480
Author(s):  
Azamat L. Slonov ◽  
Ismel V. Musov ◽  
Elena V. Rzhevskaya ◽  
Azamat Zhansitov ◽  
Svetlana Yu. Khashirova
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Heat Resistance ◽  
Carbon Fibers ◽  
Filler Content ◽  
Sharp Decrease ◽  
Polyphenylene Sulfide ◽  
Average Particle ◽  
Melt Flow Rate ◽  
Particle Length

The article presents the results of a study of the effect of milled and chopped carbon fibers, with an average particle length of 0.2 and , respectively, on the mechanical properties of polyphenylene sulfide and its heat resistance. It was found that the introduction of carbon fibers leads to a significant decrease in the melt flow rate. It was shown that after a sharp decrease in impact strength at 10 % content of carbon fibers, its inverse improvement occurs with an increase in the filler content. Composites containing carbon fibers with length demonstrate higher impact strength. The introduction of a filler leads to a significant increase in the elastic modulus and strength of polyphenylene sulfide and its heat resistance.

Dynamic mechanical properties, thermal and heat resistance of multiblock co-poly(urethane-imide) films with graphene and tungsten disulfide

2019 ◽  
Vol 68 (8) ◽  
pp. 1603-1612 ◽  
Author(s):  
A. L. Didenko ◽  
V. E. Smirnova ◽  
E. N. Popova ◽  
G. V. Vaganov ◽  
D. A. Kuznetcov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Resistance ◽  
Dynamic Mechanical Properties ◽  
Tungsten Disulfide ◽  
Dynamic Mechanical ◽  
And Tungsten

Morphology, Thermal, Dynamic Mechanical and Mechanical Properties of Long Glass Fiber Reinforced Thermoplastic Polyurethane Elastomers and Polyvinyl Chloride Composites

2014 ◽  
Vol 941-944 ◽  
pp. 266-274 ◽  
Author(s):  
Kai Zhou Zhang ◽  
Qiang Guo ◽  
Bang Sheng You
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Heat Resistance ◽  
Glass Fiber ◽  
Thermoplastic Polyurethane ◽  
Dynamic Mechanical ◽  
Long Glass Fiber ◽  
Master Batch ◽  
Scanning Electron

Thermoplastic polyurethane elastomer (TPU) and long glass fiber (LGF) were used to prepare LGF/TPU master batch for increasing the mechanical properties and heat resistance of PVC. It turned out that addition of LGF/TPU contributed to improvement in toughness of PVC but the heat resistance of PVC didn’t increase very evidently. The heat resistance and morphology were observed by vicat test and scanning electron microscopy, respectively. The scanning electron microscopy (SEM) proved that incorporation of LGF/TPU into PVC changed the morphology of the composites and correlated well with the mechanical properties. Dynamic mechanical analysis (DMA) showed that both the glass transition temperature and the storage modulus of PVC increased with the addition of LGF/TPU master batch; the presence of a single Tg indicated that each component of composites was miscible. In this study, the combination properties of the composites with 24wt% LGF was the best proportion in the range of 0-30 phr LGF, because it had the best mechanical properties and heat resistance.

Effect of Carbon Black Reinforcing Fillers on Mechanical Properties of NBR Materials Used for the Progressing Cavity Pump

2015 ◽  
Vol 750 ◽  
pp. 339-344 ◽  
Author(s):  
Long Pan ◽  
Jin Zhu Tan ◽  
Liu Fei Fan ◽  
Xue Mei Han
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Carbon Black ◽  
Heat Resistance ◽  
Tear Strength ◽  
Resistance Property ◽  
Reinforcing Fillers ◽  
Materials Used

Three kinds of reinforcing fillers (i.e. carbon black N330, carbon black N880 and carbon-white) were used to study effect of the reinforcing fillers on the mechanical properties of NBR materials. The NBR materials with various reinforcing fillers were fabricated, and the mechanical property tests were performed in this work. The results show that the carbon black N330 made the NBR material have better tensile strength, hardness, elongation and compression elastic modulus compared to the carbon black N880 and the carbon-white, while the carbon-white made NBR material have better heat resistance, tear strength and elongation compared to the carbon black N330 and the carbon black N880. In addition, the tensile strength, tear strength, elongation and the heat resistance property of the NBR materials increased significantly with the increase of the carbon-white, but the compression elastic modulus decreased with the increase of the carbon-white.

Study on Application of the Blends of Nitrile Rubber with Acrylate Rubber in the Coat-Metal Sealing Gasket

2011 ◽  
Vol 393-395 ◽  
pp. 1438-1442 ◽  
Author(s):  
Zu Min Qiu ◽  
Chao Yan Qin ◽  
Jun Ming Qiu
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Heat Resistance ◽  
Nitrile Rubber ◽  
Temperature Resistance ◽  
Oil Resistance ◽  
Comprehensive Properties ◽  
The Cost ◽  
Low Temperature Resistance

This paper discussed the effect of different blending ratio with BNR and ACM on the mechanical properties, heat resistance, low temperature resistance and oil resistance of coat-metal sealing gasket. The result showed that the comprehensive properties of the NBR/ACM blends at the ratio of 85/15 were preferable to the NBR and ACM, the low temperature resistance and oil resistance of NBR are taken into account. The cost of the blends were lower than the ACM. The blends can be used for coat-metal sealing gasket instead of NBR.

EFFECT OF IRON CONTENT ON MECHANICAL PROPERTIES OF FORGINGS FROM HEAT-RESISTANCE TITANIUM ALLOY VТ41

2015 ◽  
Vol 0 (10) ◽  
pp. 1-1
Author(s):  
O.S. Kashapov ◽  
◽  
T.V. Pavlova ◽  
A.R. Istrakova ◽  
V.S. Kalashnikov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Heat Resistance ◽  
Iron Content
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