๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Synthesis and properties of magnets/polyethylene composites

โœ Scribed by Xinpei Cao; Yingwu Luo; Linxian Feng


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
110 KB
Volume
74
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

โœฆ Synopsis


Polyethylene-based magnetic composites have been prepared by ethylene polymerization on the surface of NdFeB magnets, which is previously activated by ball milling with catalyst components. The level of magnets has been controlled by catalyst preparation and polymerization parameters such as Al/Ti ratio and polymerization temperature. The coertivity and the residual magnetizability were investigated. It was found that the magnetic properties of magnet powders are largely retained. In addition, in contrast to composites prepared by melt mixing, the adhesion force between magnets and polymer matrix is improved significantly and better mechanical properties are expected.


๐Ÿ“œ SIMILAR VOLUMES


Synthesis and electricalโ€“magnetic proper
โœ Meixiang Wan; Junchao Li ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 159 KB ๐Ÿ‘ 2 views

Composites of polyaniline (PANI) with both conducting and ferromagnetic feature were synthesized by an improved method proposed by the authors. The electrical and ferromagnetic properties of the composites were measured as a function of the concentration of KOH solution used during polymerization. T

Composition-dependent properties of poly
โœ E. G. Privalko; A. V. Pedosenko; V. P. Privalko; R. Walter; K. Friedrich ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 153 KB ๐Ÿ‘ 1 views

Injection-molding and blow-molding grades of high-density polyethylene composites containing up to 30 vol. % of calcinated Kaolin were characterized by measurements of melting temperatures (T m ), heats of fusion (โŒฌH m ) and room-temperature densities. Both T m and the degree of crystallinity of a p

Study of thermophysical and mechanical p
โœ ล tefan Barta; Jozef Bielek; Peter Dieลกka ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 124 KB ๐Ÿ‘ 1 views

Starting from the formulae for effective parameters of the particulate composite derived within the average field approximation, the formula for the percolation threshold is derived. The maximum value of the percolation threshold is 1 3 in the case of the isotropic granules of globular shape. Furthe

Composition-dependent properties of poly
โœ V. P. Privalko; D. I. Sukhorukov; E. G. Privalko; R. Walter; K. Friedrich; F. J. ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 167 KB ๐Ÿ‘ 1 views

Injection-molded samples of high-density polyethylene (HDPE) differing in the orientation pattern (with respect to the melt flow direction) and in filler content (untreated and surface-treated kaolin, respectively) were characterized by wide-angle X-ray scattering, microhardness, and stretching calo

Morphology of polyethyleneโ€“carbon black
โœ G. Beaucage; S. Rane; D. W. Schaefer; G. Long; D. Fischer ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 291 KB

Carbon black is a common polymer additive that is used for reinforcement and for its ability to enhance physical properties, such as conductivity. This article pertains to an X-ray scattering (SAXS) study of a conductive grade of carbon black and carbon black-polymer composites. The scattering patte