Results 211 to 220 of about 143,451 (263)

Attrition of high-density polyethylenes

Powder Technology, 1987
Abstract An annular shear cell has been deployed to explore the influence of polymer structure on bulk attrition for various grades of high-density polyethylene, these grades differing in molecular weight and degree of chain branching. Decreased bulk attrition of coarse material was found, provided that the molecular weight was high.
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Polyethylene, Linear High Density

2009
Abstract Preparative Techniques Type of polymerization: Coordination polymerization Typical Comonomers 1-alkenes, vinyl acetate, methacrylates, acrylates, methacrylic acid, acrylic ...
Rufina G Alamo, Leo Mandelkern
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Charge storage and transport in high density polyethylene and low density polyethylene

9th International Symposium on Electrets (ISE 9) Proceedings, 2002
High density polyethylene (HDPE) and low density polyethylene (LDPE) are widely used as dielectrics and insulating materials. In this paper, the influence of heat treatment during and after corona charging on charge storage stability and the transportation of detrapping charges in the bulk of HDPE and LDPE were investigated by isothermal surface ...
null Jian Jiang, null Zhongfu Xia, null Hongyan Zhang, null Zhenzhong Wang   +3 more
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Modification of recycled high‐density polyethylene by low‐density and linear‐low‐density polyethylenes

Polymer Engineering & Science, 2003
AbstractThe present study investigated mixed polyolefin compositions with the major component being a post‐consumer, milk bottle grade high‐density polyethylene (HDPE) for use in large‐scale injection moldings. Both rheological and mechanical properties of the developed blends are benchmarked against those shown by a currently used HDPE injection ...
N. Kukaleva, G. P. Simon, E. Kosior
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Granulomatosis of bone from high density polyethylene

Injury, 1982
Granulomatous reaction by bone to high density polyethylene can occur if the rate of wear and the volume of the resulting wear products is abnormally great. The phenomenon was found in 6 of 11 patients who had had a Monk soft-top prosthesis inserted more than two years before.
R T, Austin, P J, Stoney
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Stabilization of high‐density polyethylene

Journal of Applied Polymer Science, 1968
AbstractSeveral types of antioxidants are evaluated in high‐density polyethylene for color and physical property stabilization during processing and thermal aging. A wide variety of evaluation tests are used and discussed. Heat‐ and light‐induced oxidation mechanisms are reviewed.
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Crystallization of high-density polyethylene-linear low-density polyethylene blend

Journal of Applied Polymer Science, 1998
The crystallization studies revealed that the high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) formed strong cocrystalline mass when they were melt blended in a single screw extruder. The progress of crystallization was observed through a small-angle light scattering instrument, scanning electron microscope, and differential
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On the cocrystallization phenomenon in blends of high density polyethylene and low density polyethylene

Polymer Bulletin, 1997
A large increase in the crystallization temperature of low density polyethylene (LDPE) when blended with high density polyethylene (HDPE) is reported. Such behavior is observed for quenched LDPE rich blends when the low melting component is cooled from 119°C under controlled conditions in the differential scanning calorimeter.
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Crystallinity of Linear Low Density Polyethylene and of Blends with High Density Polyethylene

British Polymer Journal, 1986
AbstractBlends of linear low density and high density polyethylene are examined by x‐ray diffraction and differential scanning calorimetry in order to characterise the crystalline morphology and to investigate the compatibility of the polymers. The polymers are found to form a co‐crystalline phase under a variety of conditions, and can thus be regarded
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Ultra Low Density Polyethylene Blends with High Density Polyethylene

Journal of Polymer Engineering, 1992
B.K. Kim, K.J. Kim, S.J. Park, H.M. Jeong   +3 more
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