The properties of the polymers (vinylacetate content, melt flow index, molecular weight, isotactic index, crystallinity, density, and frequency of branching) have been correlated with the change of the melting point under pressure (d T m/d p). It could be shown that the melting point always...
Importance of the Melting Point of Polymers Often the quality of raw polymers has to be tested before they are used for injection molding. Among other tests, the melting range is determined in order to set the recommended melting temperature. The melting temperature is the temperature the material...
Melting point of polymers under high pressure: Part I: Influence of the polymer properties The pressure dependence of the melting point of various polymers including homo- and copolymers (HDPE, LDPE, PP and ethylene vinyl acetate copolymers (EVA)... A Seeger,D Freitag,F Freidel,... - 《The...
On heating, the crystalline regions do not melt at a fixed temperature but rather over a temperature range. The melting point of crystallites depends on their size. Small crystallites melt at lower temperatures than large crystallites. Since crystallites of different size are present, polymers alw...
The Excellence Melting Point System is perfectly suited for this task: based on the melting point of a substance, samples can be tested for purity and identity at the same time. Plastics, polymers, and other synthetic products play an important role in chemical processes. The Excellence Melting...
2. The polyamide according to claim 1, which has a melting point greater than 335° C. 3. The polyamide according to claim 1, which has a melting point below 350° C. 4. The polyamide according to claim 3, which has a melting point of at most 346° C. 5. The polyamide according...
A method for granulating a flexible polyolefin resin including: melting a flexible polyolefin resin by volatilization after polymerization; cooling the resin to a temperature in a range of the melting point of the resin (Tm-D) ±50° C.; and granulating
Find out how metal melting points compare with the average stainless steel melting point to see what metal is best for your needs.
Melting Point and Dropping Point Guide, with tips & hints for better analysis of melting point & dropping point and performance verification.
Heat capacities and entropies of liquid, high‐melting‐point polymers containing phenylene groups (PEEK, PC, and PET) The heat capacity at constant pressure of liquid PEEK, poly(oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene), has been measured by scanning calo... SZD Cheng,...