Topic
Polymer blend
About: Polymer blend is a research topic. Over the lifetime, 18474 publications have been published within this topic receiving 437183 citations. The topic is also known as: polymer mixture & Polymerblend 或者 Polyblend.
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TL;DR: In this paper, the structural changes of silk fibroin by the addition of chitosan were investigated by IR spectroscopy, and it was found that the tensile strength and initial tensile modulus of blend films were greatly enhanced with increasing the chitoshan content.
Abstract: Silk fibroin/chitosan blend films were prepared by the solvent casting method. Miscibility between silk fibroin and chitosan was examined by dynamic mechanical thermal analysis. Structural changes of silk fibroin by the addition of chitosan were investigated by IR spectroscopy. The conformational transition of silk fibroin from random coil form to β-sheet structure induced by blending with chitosan resulted in the increase of crystallinity and density of the blend films. The blend film containing 30 wt % chitosan exhibited a maximum increase in crystallinity and density. It was found that the tensile strength and initial tensile modulus of blend films were greatly enhanced with increasing the chitosan content and showed a maximum value at the composition of 30 wt % chitosan. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 2571–2575, 1999
108 citations
TL;DR: In this paper, the effect of OMMT on polyamide 6 (PA6)/maleated styrene-ethylene/butylene-styrene (mSEBS) was investigated.
108 citations
TL;DR: Self-nucleation (SN) as discussed by the authors is a special nucleation process triggered by self-seeds or selfnuclei that are generated in a given polymeric material by specific thermal protocols or by inducing chain orientation in the molten or partially molten state.
Abstract: Self-nucleation (SN) is a special nucleation process triggered by self-seeds or self-nuclei that are generated in a given polymeric material by specific thermal protocols or by inducing chain orientation in the molten or partially molten state. SN increases the nucleation density of polymers by several orders of magnitude, producing significant modifications to their morphology and overall crystallization kinetics. In fact, SN can be used as a tool for investigating the overall isothermal crystallization kinetics of slow-crystallizing materials by accelerating the primary nucleation stage in a previous SN step. Additionally, SN can facilitate the formation of one particular crystalline phase in polymorphic materials. The SN behavior of a given polymer is influenced by its molecular weight, molecular topology, and chemical structure, among other intrinsic and extrinsic characteristics. This review paper focuses on the applications of DSC-based SN techniques to study the nucleation, crystallization, and morphology of different types of polymers, blends, copolymers, and nanocomposites.
107 citations
TL;DR: In this paper, a pH-sensitive hydrogel system with potential ability to immobilize and absorb proteins was developed with electron beam (EB) irradiation at room temperature, and the FTIR spectroscopic, mechanical property, swelling behavior, and surface property of the hydrogell membrane were measured.
107 citations