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Crystallization Behavior of Isotactic Polybutene Blended with Polyethylene [PDF]
Molecules, 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
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Polymer Testing, 2023 The creep resistance of polymer determines the dimensional stability of product under stress. The isotactic polybutene-1 (iPB) with outstanding high-temperature creep resistance and stress-crack resistance is applied widely in the field of hot-water ...
Yuanjin Zhao +3 more
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The Stability of Viscosity of Polybutenes and Polybutene-Mineral Oil Mixtures
Journal of the Society of Materials Science, Japan, 1973 In order to obtain the data of the stability of high viscosity standard oils, the variation of viscosity with age was measured by means of a caoillary master viscometer for nolybutenes having viscosities of 55, 340, and 1010 poises at 25°C, and for polybutene-mineral oil mixtures having viscosities of 20, 100, and 540 poises at 25°C.The results ...
K. Yoshida +3 more
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Micro-hardness of surface layer of irradiated Polybutene Terephthalate (PBT) [PDF]
MATEC 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
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Mpemba Effect in Crystallization of Polybutene-1 [PDF]
Soft Matter, 2022 The Mpemba effect and its inverse can be understood as a result of nonequilibrium thermodynamics.
Jinghua Liu +4 more
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Rapid and quantitative 1D 13C NMR analysis of polypropylene tacticity with relaxation agent and proton polarization transfer [PDF]
Magnetic Resonance LettersPolypropylene (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
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Crystallinity and Stereoregularity of Polybutene-1
Kobunshi Kagaku, 1962 X線回折による結晶化度と密度とを主としてZieglem触媒により合成したポリブテン-1について測定した。結晶化度と比容積との間に直線関係が成立することから, 結晶質と非晶質の密度の値0.950および0, 868が得られた。アイソタクチックポリブテン-1には結晶化バンドとみなしうる吸収が多数見出された。一方, 1221cm-1バンドは固態状態ではその吸光度比の値が比容積と直線関係を示すが溶融状態や溶液で消失しない。したがって固態状態で一定の熱処理をした試料について比較するときには結晶化度の尺度として使用しうると考えられる。吸光度比 (A1221/A1151) と密度 (d) との間には次の実験式が成立する。
Atsuo Nishioka, Kazuo Yanagisawa
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Safety assessment of the substance Ln 1,4‐benzene dicarboxylic acid (with Ln = La, Eu, Gd, Tb) for use in food contact materials [PDF]
EFSA 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
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