Twin screw extrusion technology
How does extrusion work? Extrusion processing aims to physico-chemically transform continuously viscous polymeric media and produce high quality structured products thanks to the accurate control …
Typical Properties of Fluoropolymers
Property Method No. Units PTFE FEP PFA ETFE ECTFE PCTFE PVDF Specific Gravity D792 – 2.17 2.15 2.15 1.74 1.7 1.7 1.78 Melting Point …
Fluoropolymers Properties
Properties Fluoropolymers are produced from alkenes in which one or more hydrogen atoms have been replaced by fluorine. The most important members are polytetrafluoroethylene (PTFE), …
Properties of PTFE and Some Other Insulating Materials
PTFE (Polytetrafluoroethylene) Teflon ® The combination of chemical and physical properties of PTFE is a consequence of its true fluorocarbon structure. This unusual structure leads …
Polymer Compounding
In a majority of instances, the polymer formed in the reaction is modified to fabricate a particular product, or to suit the needs of a …
Polymer Productction
Thermosets. Facilities that produce/formulate thermoset polymers typically describe the initial reaction phase as “condensation” polymerization. During the reaction, a condensate is formed when unreacted and …
Rotational moulding,Powder injection moulding and thixomoulding
Rotational moulding In rotationalmoulding,a chargeof plastic powderis placed in one half of a metal mould.The mouldhalves are thenclamped together and heated while the mould rotates …
Polymer Trends and Challenges
The polymerindustry experiencedexponentialgrowth during the latter half of the 20th century. There are about 50 resin producers around the world , the well known big …
Injection Moulding Process – Injection Moulding Machines
Injection moulding is a two step cyclical process: (a) melt generation by a rotating screw, and (b) filling of the mouldwith molten polymer by the …
Polymer Screw Extrusion
Most polymeric materials are extruded at least twice in their lifetime, rst through a pelletising die after the reactor and then for nal …
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