- Email: [email protected]
Atactic polypropylene — Filler Masterbatch Technique
18,
Vol.
TECHNICAL ATACTIC POLYPROPYLENE FILLER MASTERBATCH TECHNIQUE
2
NOTES
Polymer
Processing,
1988, 2,
(Jan.),
155
The self-conducting polymers that are available at preserlt do not as yet have adequate stability and it is necessary to develop filled electrically conductive plastics to overcome this An electrically conductive network of f’i llcr particles problem. in the polymer matrix is essential f’or a proper functioning of’ these new materials. The physical conditions and problems involved in the formation of’ such a network arc discussed in the way in which the conduct.ive this article, particularly filler particles are distributed and also the contacting of Basic propositions f’or a these particles with one another. solution of these problems are indicated.
ELECTRICALLY CONDUCTIVE PLASTICS
Kunststoffe,
INFLUENCE
Page
This paper reports the basic idea of an APP-I,‘iller Masterbatch Technique developed in China, and used widely in the plastics industry of China. The rheological aspects of th’s technique are presented. Systemat?.c observations on the rheological behaviour and the norphology 01’ a series of’ f’illcd and blended polymers fabricated by APP-[‘MB Tech. are made, including dif’ferent conbinations of various APP treated particles (calcium carbonate, sponites, red mud, wood f’lour , etc. ) and polymers (PP, PVC ) rubbers 1. It is shown that filler particles arc well bonded to the atactic polypropylc7e in the f’l I led and blended sys terns, and this improves the processing propertj es. The viscosity for all the filled polymer systems mentioned -is not sensitive to the filler concentration. Intern.
THE
No. 5,
OF
FILLERS ON THE MECHANICAL PROPERTIES OF SMC MATERIALS
1988, 3,
(Jan.),
53-58
On account of its multicomponent struct.ure, a sheet moulding It is not only the compound is a highly heterogeneous material. but also the SMC properties which arc processing parameters, Investigacomposition. very largely governed by the material tions into the material behaviou:. under tension, impact and shock as well as into the vibration resist.:nce using hysteresis show that of the formulation components investimeasurements in part Ocular it is the fillers and their content, partigated, to the resin matrix which cle size distribution and adhesl.on on the micromcchanical dom~?;e. exert a doninating influence the Limit of nul.tiple crackThese parameters especially affect ing as an evaluation limit with relevance to practical use. Kunststoffe,
1988, 78,
(#Jan. ),
59-65
Cont./...... ADDITIVES FOR POLYMERS
o1988
Elsevier Science Publishers
B.V., Amsterdam.l89/$0.00
+ 2.20
Vol.
TECHNICAL ATACTIC POLYPROPYLENE FILLER MASTERBATCH TECHNIQUE
2
NOTES
Polymer
Processing,
1988, 2,
(Jan.),
155
The self-conducting polymers that are available at preserlt do not as yet have adequate stability and it is necessary to develop filled electrically conductive plastics to overcome this An electrically conductive network of f’i llcr particles problem. in the polymer matrix is essential f’or a proper functioning of’ these new materials. The physical conditions and problems involved in the formation of’ such a network arc discussed in the way in which the conduct.ive this article, particularly filler particles are distributed and also the contacting of Basic propositions f’or a these particles with one another. solution of these problems are indicated.
ELECTRICALLY CONDUCTIVE PLASTICS
Kunststoffe,
INFLUENCE
Page
This paper reports the basic idea of an APP-I,‘iller Masterbatch Technique developed in China, and used widely in the plastics industry of China. The rheological aspects of th’s technique are presented. Systemat?.c observations on the rheological behaviour and the norphology 01’ a series of’ f’illcd and blended polymers fabricated by APP-[‘MB Tech. are made, including dif’ferent conbinations of various APP treated particles (calcium carbonate, sponites, red mud, wood f’lour , etc. ) and polymers (PP, PVC ) rubbers 1. It is shown that filler particles arc well bonded to the atactic polypropylc7e in the f’l I led and blended sys terns, and this improves the processing propertj es. The viscosity for all the filled polymer systems mentioned -is not sensitive to the filler concentration. Intern.
THE
No. 5,
OF
FILLERS ON THE MECHANICAL PROPERTIES OF SMC MATERIALS
1988, 3,
(Jan.),
53-58
On account of its multicomponent struct.ure, a sheet moulding It is not only the compound is a highly heterogeneous material. but also the SMC properties which arc processing parameters, Investigacomposition. very largely governed by the material tions into the material behaviou:. under tension, impact and shock as well as into the vibration resist.:nce using hysteresis show that of the formulation components investimeasurements in part Ocular it is the fillers and their content, partigated, to the resin matrix which cle size distribution and adhesl.on on the micromcchanical dom~?;e. exert a doninating influence the Limit of nul.tiple crackThese parameters especially affect ing as an evaluation limit with relevance to practical use. Kunststoffe,
1988, 78,
(#Jan. ),
59-65
Cont./...... ADDITIVES FOR POLYMERS
o1988
Elsevier Science Publishers
B.V., Amsterdam.l89/$0.00
+ 2.20