Polyethylene effects

A textured metallocene polyethylene foam sheet suitable for use in a floor covering is made using a highly coactivated azodicarbonamide package which blows the metallocene polyethylene effectively. The preferred coactivators are zinc oxide and urea. The textured surface of metallocene polyethylene foam is formed by a chemical embossing process which utilises a liquid triazole having an alkyl moiety as a foam-expansion inhibitor. The triazole is dissolved in a non-polar solvent to form the foam inhibitor. The preferred inhibitor is a hydrocarbon which may be halogenated. 

Yahagi, K., K. Shinohara, and K. Mori y ray induced conductivity in polyethylene, effect of pre-irradiation and crystallinity. Rep. Prog. Polymer Phys., Japan 7, 313 (1964). 

They are well known as compounds which are photoohemically very reactive. The excited singlet and triplet states are the photochemically reactive states,and they also can participate in energy transfer reactions (2,3i10,11). Some of these compoxmds such as anthracene,phenanthrene,pyrene added to polyethylene effect the photodegradation of polymer (118,... 

E) radation of Chlorinated Polyethylene Effect of Cross-Linking on Dehydrochlorination... 

Water is often a major impurity in deuterated solvents, especially in polar solvents. For example, commercial acetone- contains 150-250 ppm of water even immediately after opening the bottle. The water content in acetone-sample tube with a plastic cap increases lOOppm/day in the chemical laboratory. When the sample in the NMR tube is kept in an effectively air-conditioned room (NMR laboratory), the water uptake rate decreases to 40ppm/day. Sealing with Parafilm is not effective in reducing the rate of water uptake. Sealing with shrinkable tube made of polyethylene effectively decreases the rate to ca. lOppm/day, even in the chemical laboratory. When the tube with plastic cap is... 

L. Cerrada. Thermo and photo-oxidation of functionalized metallocene high density polyethylene Effect of hydrophilic groups , Polym. Degad. Stab., Ill, 78-88 (2015)... 

Fig. 8. Low density polyethylene. Effect of draw ratio on temperature variation of tan 0 for samples from cold drawn. sheet. (Adapted from Stachurski and Ward. i...

Sha Sharif, A., Mohammadi, N., Ghaffarian, S. R. Model prediction of the ESCR of semicrys-talline polyethylene Effects of melt cooling rate. J. Appl. Polym. Sci. 112 (2009) 3249-3256. 

Sun, X. Shen, H. Xie, B. Yang, W. Yang, M., Fracture Behavior of Bimodal Polyethylene Effect of Molecular Weight Distribution Characteristics. Polymer 2011,52, 564-570. 

C. S. R. Freire, A. J. D. Silvestre, C. P. Neto, A. Gandini, L. Martin, and I. Mondragon, Composites based on acylated cellulose fibers and low-density polyethylene Effect of the fiber content, degree of substitution and fatty acid chain length on final properties. Compos. Sci. Technol. 68(15-16), 3358-3364 (2008). 

Hays, D. A., Contact electrification between mercury and polyethylene effect of surface oxidation, /. Chem. Phys., 61,1455,1974. 

Capaccio, G. and Ward, I.M. (1973) Properties of ultra-high modulus linear polyethylenes. Nature Phys. Sci., 243, 143 (1974) Preparation of Ultrahigh Modulus Linear Polyethylenes - Effect of Molecular-weight and Molecular-weight Distribution on Drawing Behavior and Mechanical-properties. Polymer, 15,223. 

Epacher E, Tolv6th J, Krdhnke C, Pukanszky B. Processing stability of high density polyethylene effect of adsorbed and dissolved oxygen. Polymer 2000 41 8401-8. 

Nazhat SN, Joseph R, Wang M et al (2000) Dynamic mechanical characterization of hydroxyapatite reinforced polyethylene effect of particle size. J Mater Sci Mater Med 11 621-628... 

Nakae M, Uehara H, Kanamoto T, Zachariades AE, Porter RS. Structure Development upon Melt Drawing of Ultrahigh Molecular Weight Polyethylene Effect of Prior Thermal History. Macromolecules 2000 33 2632. 

Wernle J, Gilbert XL. Microscale and nanoscale surface strain mapping of single asperity wear in ultra high molecular weight polyethylene effects of materials, load, and asperity geometry. J Biomed Mater Res 2008. In Press. 

Ghosh, R, Dev, D., Chakrabarti, A. Reactive melt processing of polyethylene Effect of peroxide action on polymer structure, melt rheology and relaxation behavior. Polymer (1997) 38, pp. 6175-6180... 

Wood-Adams, P, Costeux, S. Thermorheological behavior of polyethylene Effects of micro-structure and long chain branching. Macromol (2001) 34, pp. 6281-6290... 

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