摘要:

Medical devices like catheters, hemodialyzers, oxygenators, heart valves, and blood vessel prostheses are frequently used in man as a consequence of natural and accidental causes of deterioration of his body. The formation of thrombi on the surfaces of artificial materials occurs upon contact with blood. Progress made over the last 25 years in the area of blood-biomaterial compatibility has been impressive. However, we still do not have a satisfactory thromboresistant material to replace a coronary artery.

ISSN:0360-2559    

DOI:10.1080/03602558708071937

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

The high modulus aramid organic fibers were first introduced commercially in the seventies by Du Pont. Initially referred to as Fiber B and PRD-49, these fibers are now produced and sold by Du Pont under the trade name Kevlar. These fibers belong to a type known under the generic title of aramid fibers defined as “fibers in which the fiber-forming substance is a long-chain synthetic polyamide in which at least 85% of the amide linkages are attached directly to two aromatic rings” [1]. They were developed as high modulus, high-strength fibers whose properties can be varied depending on the spinning and drawing conditions and are presently available as Kevlar and Kevlar-29, both formerly Fiber B, and Kevlar-49, formerly PRD-49, as continuous-filament fiber or fabric. All of them are characterized by their high tensile strength and high modulus compared with other organic fibers (Table 1 [1]).

ISSN:0360-2559    

DOI:10.1080/03602558708071938

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

A. Multiphase Polymeric Materials

ISSN:0360-2559    

DOI:10.1080/03602558708071939

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

The field of performance plastics is showing remarkable vitality and growth, even though the participants find the price to be high in terms of technical and sales support required, together with high capital investment for plants.

ISSN:0360-2559    

DOI:10.1080/03602558708071940

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

The use of computer-aided engineering (CAE) technologies for analyzing critical plastic parts has increased tremendously within the plastic industry and Xerox. During the last three years, significant advancements have been made in both polymer melt flow analysis (Moldflow, FA, TM Series) and heat transfer analysis (Polycool, Moldcool) programs to aid in the design of plastic parts and molds. (Moldflow is a registered trademark of Moldflow Australia Pty. Ltd., FA, and TM are a registered trademark of Plastics and Computer Co. Polycool is a registered trademark of General Electric Co. Moldcool is a registered trademark of AEC Corp.) These computer simulation techniques optimize material flow, processing, and cooling parameters as well as providing the ability to balance multicavity tools. However, the utilization of these simulation techniques may be both time consuming and expensive. This paper describes a step-by-step procedure for selecting plastic parts for CAE analysis.

ISSN:0360-2559    

DOI:10.1080/03602558708071941

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0360-2559    

DOI:10.1080/03602558708071936

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor