Processability of Particulate Filled Plastics

Experimental Values for the Elastic Constants of a Particulate-Filled Glassy Polymer

Young's modu lus and Poisso n's ratio have been measured simultaneously on a seri es of parti c ula te composites containing vo lume fractions of fill er up to 0.50. The co mposites consisted of small glass spheres im bedded in a ri gid e poxy polyme r matrix. The measured va lues were com pared with theOl·etica l values ca lc ulated from c urrent theories. A recentl y generalized and simplifie...

Biodegradability of Plastics

Plastic is a broad name given to different polymers with high molecular weight, which can be degraded by various processes. However, considering their abundance in the environment and their specificity in attacking plastics, biodegradation of plastics by microorganisms and enzymes seems to be the most effective process. When plastics are used as substrates for microorganisms, evaluation of thei...

Processing of plastics

An overview is given of the processing of plastic materials from the handling of polymers in the pellet and powder form to manufacturing of a plastic fabricated product. Various types of equipment used and melt processing ranges of various polymer formulations to make the myriad of plastic products that are commercially available are discussed.

Consumer hazards of plastics.

The modern consumer is exposed to a wide variety of plastic and rubber products in his day to day life: at home, work, school, shopping, recreation and play, and transport. A large variety of toxic sequellae have resulted from untoward exposures by many different routes: oral, dermal, inhalation, and parenteral. Toxic change may result from the plastic itself, migration of unbound components an...

Medical applications of plastics.