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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.


Papers
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Patent
17 Mar 2005
TL;DR: In this article, the authors define a mixture of polyolefins and interpolymers, which can be either homopolymers or interpolymer blends, to be used to make flexible molded articles.
Abstract: Polymer blends comprises 1) at least one ethylene/α-olefin interpolymer and 2) at least one polyolefin, or at least one styrenic block copolymer, or a combination thereof. Such polyolefins include, but are not limited to, high melt strength high density polyethylene and high melt strength polypropylene. The ethylene/α-olefin interpolymers are random block copolymers comprising at least a hard block and at least a soft block. The polyolefins can be homopolymers or interpolymers. The resulting polymer blends can be used to make flexible molded articles.

121 citations

Journal ArticleDOI
03 Mar 2008-Polymer
TL;DR: In this article, the effect of organoclay on the morphology, rheology and mechanical properties of high-density polyethylene (HDPE) and polyamide 6 (PA6) blends was investigated by means of wide-angle X-ray diffractometry, transmission and scanning electron microscopy and quantitative extraction experiments.

121 citations

Journal ArticleDOI
TL;DR: In this paper, the steady-state morphology of an immiscible polymer blend in shear flow has been investigated by optical microscopy techniques, and it has been shown that the average drop size in steady state conditions is a decreasing function of the applied shear rate, and does not depend on blend composition.
Abstract: The steady-state morphology of an immiscible polymer blend in shear flow has been investigated by optical microscopy techniques. The blend is composed by poly-isobutylene (PIB) and poly-dimethylsiloxane (PDMS) of comparable viscosity. Experiments were performed by means of a home-made transparent parallel plate device. The two plates can be independently counterrotated, so that sheared droplets of the dispersed phase can be kept fixed with respect to the microscope point of view, and observed for long times. The distribution of drops and their average size were measured directly during flow at different shear rates and for different blend compositions. It was found that the average drop size in steady-state conditions is a decreasing function of the applied shear rate, and does not depend on blend composition for volume fractions up to 10%. Experiments have proved that, in the shear rate range which could be investigated, the stationary morphology is controlled only by coalescence phenomena, droplet breakup playing no role in determining the size of the dispersed phase. More generally, it has been shown that the steady-state morphology is a function not only of the physical parameters of the blend and of the shear rate, but also of the initial conditions applied to the blend. The steady-state results reported in this paper constitute the first direct experimental confirmation of theoretical models which describe the mechanisms of shear-induced drop coalescence.

121 citations

Journal ArticleDOI
TL;DR: In this paper, a mixture of chitosan with two cellulose ethers-hydroxypropylmethylcellulose and methylcelluloses-was cast from acetic acid solutions, and it was shown that although weak hydrogen bonding exists between the polymer functional groups the blends are not fully miscible in a dry state.

121 citations

Journal ArticleDOI
TL;DR: The MPC polymer could serve as a doubly functional polymeric additive, that is, to generate a protein-adsorption-resistant characteristic and to render the membrane hydrophilic.

121 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202383
2022167
2021411
2020451
2019427
2018439