Results 1 to 10 of about 2,491 (237)

Applicazione della meccanica della frattura viscoelastica alla previsione della vita di tubi in polibutene [PDF]

open access: yesFracture and Structural Integrity, 2013
Isotactic polybutene-1 (i-PB1) is a polymer used for the manufacturing of pressurized pipes. In this work two grades of i-PB1 with a different degree of isotacticity have been investigated; they have been supplied by Basell Polyolefins. Fracture tests
Luca Andena   +2 more
doaj   +6 more sources

Crystallization Behavior of Isotactic Polybutene Blended with Polyethylene [PDF]

open access: yesMolecules, 2022
In this work, the melt crystallization behavior and the solid phase transition of isotactic polybutene (PB) were studied in the polybutene/high-density polyethylene (PB/PE) blends covering the whole composition range.
Jiajia Ping, Guiqiu Ma, Zhe Ma
doaj   +2 more sources

Micro-hardness of surface layer of irradiated Polybutene Terephthalate (PBT) [PDF]

open access: yesMATEC Web of Conferences, 2016
Using high doses of beta radiation for polybutylene terephthalate (PBT) and its influence on the changes of micromechanical properties of surface layer has not been studied in detail so far. The specimens of PBT were made by injection moulding technology
Manas David   +6 more
doaj   +2 more sources

Mpemba effect in crystallization of polybutene-1 [PDF]

open access: greenSoft Matter, 2023
The Mpemba effect and its inverse can be understood as a result of nonequilibrium thermodynamics.
Jinghua Liu   +4 more
openaire   +4 more sources

Effect of crystalline transformation on supercritical CO2 foaming and cell morphology of isotactic polybutene-1

open access: goldJournal of CO2 Utilization, 2023
As a polycrystalline polymer, isotactic polybutene-1 (iPB-1) will form different crystalline structures when it crystallizes under different conditions. In this work, we found a simple method to manipulate the cell structure of iPB-1 foams by controlling
Weijie Li   +4 more
doaj   +2 more sources

Rapid and quantitative 1D 13C NMR analysis of polypropylene tacticity with relaxation agent and proton polarization transfer [PDF]

open access: yesMagnetic Resonance Letters
Polypropylene (PP) accounts for approximately 28.0% of the global polyolefin market, valued at $243.4 billion in 2022. Known for its lightweight, chemical resistance, cost-effectiveness, high strength and melting point, PP is widely used in various ...
Xuelei Duan   +9 more
doaj   +2 more sources

Safety assessment of the substance Ln 1,4‐benzene dicarboxylic acid (with Ln = La, Eu, Gd, Tb) for use in food contact materials [PDF]

open access: yesEFSA Journal, 2018
The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP Panel) assessed the safety of the additive Ln 1,4‐benzene dicarboxylic acid (with Ln = La, Eu, Gd, Tb) for use in food contact materials.
EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP)   +27 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy