| 词条 | Polymer blend |
| 释义 |
A polymer blend, or polymer mixture, is a member of a class of materials analogous to metal alloys, in which at least two polymers are blended together to create a new material with different physical properties.[1] HistoryDuring the 1940s, '50s and '60s, the commercial development of the new monomers for production of the new polymers seemed endless. In this period, it was discovered that the development of the new techniques for the modification of the already existing polymers, would be economically viable. The first technique of modification developed was the polymerization, in other words, the joint polymerization of more than one kind of polymer. A new polymers modification process, based on a simple mechanical mixture of two polymers first appeared when Thomas Hancock got one mixture of natural rubber with gutta-percha. This process generated a new polymer class called "polymer blends". Basic conceptsPolymer blends can be broadly divided into three categories:
The use of the term polymer alloy for a polymer blend is discouraged, as the former term includes multiphase copolymers but excludes incompatible polymer blends.[3] Examples of miscible polymer blends:
Polymer blends can be used as thermoplastic elastomer See also
References1. ^{{cite book | author = Gert R. Strobl | title= The Physics of Polymers Concepts for Understanding Their Structures and Behavior| publisher=Springer-Verlag | year=1996 | isbn = 978-3-540-60768-7}} Section 3.2 Polymer Mixtures 2. ^{{GoldBookRef |title=compatible polymer blend |file=CT07581}} 3. ^{{GoldBookRef |title=polymer blend |file=P04736 }} External links
1 : Polymers |
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