If the molecular mass of tetrafluoroethylene is 120,000, its degree of polymerization is 120,000 / 100 = 1,200. References "Chemistry: Textbook"; Raymond Chang; 2007Cite This Article MLA Fox, Oxana. "How To Calculate The Degree Of Polymerization" sciencing.com, https://www.sciencing.com/...
1. Macromolecular structure (macromolecular flexibility, polymer polymerization): Fiber breakage depends on the relative slippage of macromolecules and the breakage of molecular chains.The smaller the average degree of polymerization of the macromolecules, the smaller the binding force of the macromolecules,...
(1) To calculate the pre-stretch rate (piston seal) or pre-compression rate (piston rod seal) and section shrinkage; (2) Pay attention to the compatibility between the seal and the sealed liquid, and take into account the swelling of the seal; (3) The thermal expansion of the seal shou...
Converting units can be difficult, so when doing so it is important to remember to write down your computations step by step and to label all units. Joules (J) and calories, the derivative units of kilojoules (kJ) and kilocalories (kcal), are both used to measure energy. Keep in mind ...
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Weld metal supports to the bottom of the water heater, so it will stand on its own. The water heater must be stable so the lower vent can open and close. Cut a hole halfway up the water heater, using the propane torch. Make it slightly larger than the copper pipe diameter, so you...
Furthermore, through the HRR curve generated by cone calorimetry is possible to calculate the slope of the FIGRA (fire-growth rate) line, extending from the origin to the earliest, highest peak, providing an estimation of both the spread rate and the size of the fire, thus estimating the co...
Each sample was measured before the test. Only samples with dimensions that met the criteria of 2 mm ± 0.01 mm were tested (6 specimens were rejected). The exact measurements of each specimen were entered into the equation to calculate the flexural strength value. The test end was marked ...