Charlesby-pinner
WebJul 16, 2024 · 典型的方程有基于统计理论的Charlesby- Pinner（C-P）方程：s＋s1／2＝p0／q0＋1／q0u1D 为溶胶份数；p0和q0 为每单位剂量断链及交联密度；u1 为交联前数均 聚合度；D为辐射剂量。此方程是对辐射交联及降解的最初阐述，已被广泛接受。
Charlesby-pinner
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WebThe Charlesby-Pinner model6,7was used to estimate the cross-link density in the E-beam cured polynorbornene films. This model can be used to relate the soluble weight fraction (s) of a film, to the E-beam dose (r), as shown in s + √s = (p0/q0) + (1/q0ulr) [1] where p0 is the dislinking density [number of dislinks (scission WebMar 1, 2005 · The commonly used Charlesby-Pinner (Ch-P) method often yields non-linear plots. The same data may easily be linearized by using the virtual dose concept proposed by Charlesby and Rosiak (Ch-R).
WebDec 2, 2015 · Analysis according to the Charlesby-Pinner equation revealed increased crosslinking-to-scission ratio, G(X)/G(S), for EOC-35. Interesting was a substantial … WebEffect of electron beam irradiation on dynamic mechanical, thermal and morphological properties of LLDPE and PDMS rubber blends
WebMar 20, 2016 · 1959年他与Pinner为瑞凯（Raychem）公司申请了第一篇聚乙烯热收缩管的专利权，从而打开了这一新型功能材料的新纪元，可以说美国Raychem公司是以制造生产热缩材料起家的辐射加工工厂及联合公司，目前已发展到近8000名员工，综合开发热收缩产品规格品格达3000种 ... WebThe gel data were evaluated by using the Charlesby-Pinner equation. Kinetic analysis showed that in ..gamma.. radiolysis of more » polyethylene grafted with styrene the formation of hydrogen is somewhat retarded, the crosslinking and main chain scission are accelerated, and the disappearance of hydrogen and formation and disappearance of …
WebJul 5, 2024 · The irradiation crosslinking of PTMC with 7 wt% PETA followed the Chen–Liu–Tang equation instead of the Charlesby–Pinner equation. The incorporation of crosslinking agents improved the creep resistance and thermal stability, resulting in low permanent set values (5.5%). Furthermore, the enzymatic erosion rates of the networks …
WebMay 3, 2004 · The theory is based on the Wesslau molecular‐weight distribution function and the results are in much better agreement in the case of many polymers than are the theoretical calculations of Inokuti based on a normalized Poisson distribution equation or the theory of Charlesby—Pinner based on a random molecular‐weight distribution. coloring puppy imagesWebThe gel data were evaluated by using the Charlesby-Pinner equation. Kinetic analysis showed that in ..gamma.. radiolysis of more » polyethylene grafted with styrene the … coloring r2d2WebJul 1, 1998 · The photolysis of phenyl selenocyanate in heptane and cumene solution gave diphenyl diselenide as the main product. The photo‐cleavage of SeCN groups into phenylseleno and cyano radicals also occurred in the polymers. Photo‐crosslinking data were processed with the Charlesby‐Pinner relation. coloring pumpkins sheetsWebThe dispersity index (Mw,0/Mn,0) and Mn,0 of mNR were determined by SEC measurement (see Figure 1b) to check the applicability of the Charlesby-Pinner Equation (4) and to evaluate the crosslinking ... coloring readingWebOct 1, 2004 · The U.S. Department of Energy's Office of Scientific and Technical Information color in graph paper onlineWebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. color in graph pythonWebThe classical Charlesby-Pinner equation is reviewed and a new, general version is presented. The meaning of the virtual dose, D v a parameter characterising deviation from the most probable distribution of molecular weight of irradiated polymer is discussed. An example of application of this modified Charlesby equation for gel-sol analysis of … coloring puzzles free