Dynamic mechanical properties, crystallization behaviors, and low-temperature performance of polypropylene random copolymer composites

2015 ◽  
Vol 133 (6) ◽  
pp. n/a-n/a ◽  
Author(s):  
Xiaomeng Wang ◽  
Xiaogang Yin ◽  
Lijun Wang ◽  
Chun Zhang ◽  
Wei Gong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Random Copolymer ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Crystallization Behaviors ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
Polypropylene Random Copolymer ◽  
Copolymer Composites

Dynamic Mechanical Properties of a Number of Elastomers and Related Polymers from 4 to 250° K

1972 ◽  
Vol 45 (4) ◽  
pp. 1033-1042
Author(s):  
R. J. Morgan ◽  
L. E. Nielsen ◽  
R. Buchdahl
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Bond Angle ◽  
Dynamic Mechanical Properties ◽  
Molecular Packing ◽  
Butyl Rubber ◽  
Monomeric Unit ◽  
Dynamic Mechanical ◽  
Young’S Moduli ◽  
Cis And Trans

Abstract Young's modulus and mechanical damping have been measured down to 4° K for cis- and trans-polybutadienes, cis- and trans-polyisoprenes, butyl rubber, and random SBR copolymers. Trans-polybutadiene has two large damping peaks below Tg, trans-polyisoprene one peak, while the cis-polymers and butyl rubber show either no damping peaks or only very small ones below Tg. The low-temperature damping peaks of the trans-polymers might be explained by a type of crankshaft motion and by a special motion of the trans-monomeric unit which involves a simultaneous vibration and bond angle deformation. The high Young's moduli of the polybutadienes compared to the polyisoprenes and the SBR copolymers are explained by the good molecular packing of the polybutadienes.

Relating dynamic mechanical data to flexible PVC low temperature performance

1996 ◽  
Vol 284 (1) ◽  
pp. 57-66 ◽  
Author(s):  
Lecon Woo ◽  
Stanley P. Westphal ◽  
Sherwin Shang ◽  
Michael T.K. Ling
Keyword(s):  
Low Temperature ◽  
Dynamic Mechanical ◽  
Temperature Performance ◽  
Low Temperature Performance

scholarly journals Dynamic Mechanical Properties of Coals Subject to the Low Temperature-Impact Load Coupling Effect

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yanbing Wang ◽  
Yang Yang ◽  
Yuantong Zhang ◽  
Jianguo Wang
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Impact Load ◽  
Coupling Effect ◽  
Dynamic Mechanical Properties ◽  
Strength Properties ◽  
Coal Specimen ◽  
Dynamic Mechanical ◽  
Temperature Impact ◽  
The Law

AbstractThe effects of low temperature gradient on dynamic mechanical properties of coal were examined through Split-Hopkinson Pressure Bar (SHPB) Dynamic Impact Experiment, the law of dynamic mechanical parameters of coal specimen changing from room temperature to negative temperature (25 °C, −5 °C, −10 °C, −15 °C, −20 °C, −30 °C, −40 °C) was analyzed, and the coal-rock stress-strain curve characteristics subject to the low temperature-impact load coupling effect was discussed. The law of the effects of different strain rates on the rock strength properties and the compressive deformation and failure was analyzed by studying the coal specimen at −15 °C. Moreover, the mechanical properties of coal specimen in saturated and dry conditions were compared, and the effects of water and water-ice phase transition on the strength properties of the corresponding coal specimen were analyzed.

Sign in / Sign up

Export Citation Format

Share Document