WebMar 30, 2024 · Δ S con and Δ S ori are the flow-induced change in the conformation and orientation entropy of polymer melt, respectively; Δ H f l is the enthalpy change of polymer melt; Δ H f c is the enthalpy difference between different final crystal states, taking two crystal forms like flow-induced orthorhombic and hexagonal phases of PE as an example ... WebSurface-Induced Polymer Crystallization and the Resultant Structures and Morphologies. Li, Huihui. ; Yan, Shouke. Publication: Macromolecules. Pub Date: February 2011.
Transparent semi‐crystalline polymeric materials and their ...
WebFeb 4, 2024 · In case of mixing induced crystallization processes such as antisolvent and reactive crystallization, particles often are generated by primary nucleation due to concentration heterogeneities introduced by the mixing process. ... Continuous direct nucleation and crystallization on surface of polymer film process line scheme. Section 1: … WebApr 15, 2024 · Stress-induced instability of perovskite layers is a critical hurdle for commercialization of perovskite solar cells. Here, the authors introduce a long-alkyl-chain anionic surfactant additive to ... framed staircase
Polymer Morphology : Principles, Characterization, and Processing
Webissues do not favor formation of an infinitely large crystal in polymers, which are characterized, by the formation of finite sized crystals. The exact nature and morphology of these crystals however, has been one of the most heavily debated topics in polymer science. 2.3 Crystallization in polymers: structure, models & relationships WebApr 11, 2024 · The authors propose that the results of such studies must be combined with surface bead-shape induced stress concentration factors to obtain the combined, “effective” Z-strength. WebLamellar crystal-dominated (LCD) surfaces hold great superiority and broad prospects in polymer surface engineering. The key to this is avoiding the formation of an amorphous phase in the interlamellar region. Here we give a first report of achieving LCD surfaces of polyethylene films via melt stretching-induced free surface crystallization. blake shelton i don\u0027t care acoustic version