摘要:

Phase separation spinning, a method originally reported by Zwick [1], has been used to produce porous polypropylene fibers by spinning a solution of polypropylene in naphthalene and subsequently extracting the naphthalene with diethyl ether. In phase separation spinning, a hot solution is spun into cool air where the temperature drops below the solubility limit so that the polymer precipitates during spinning. If a relatively nonvolatile solvent in the proper concentration range is used, two continuous phases are formed. Extraction of the nonvolatile solvent produces continuous voids to form a porous fiber.

ISSN:0360-2559    

DOI:10.1080/03602558008069996

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

摘要:

A. Importance of Surface Properties

ISSN:0360-2559    

DOI:10.1080/03602558008069997

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

摘要:

In the United States economy, intermediate petrochemicals rarely find direct consumer use; rather, they serve as raw materials for the manufacture of synthetic fibers, plastics, and resins; synthetic rubber, and thousands of other products. The demand for these end products drives the growth of the intermediate chemicals industry and shapes future technology. It is clear that petrochemical technology assessment requires both an understanding of the technology and of the function the technology is to serve in the economy.

ISSN:0360-2559    

DOI:10.1080/03602558008069998

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

摘要:

Containers to protect food against the ravages of the environment have been used for centuries. Many such containers exclude oxygen efficiently to protect flavor, color, odor, texture, and human health. Food processors and sellers alike often want to convey longer shelf-lives to their products to smooth out the supply/demand balance, to allow wider distribution from larger plants, and to permit advantageous use of resources including the foods themselves. These longer shelf-lives must exceed the likely inventory time to consumption. Coupled with this interest in barrier containers is the need for minimum containment per unit of product packaged. Minimum containment includes both volume and weight to provide for efficient use of space and shipping.

ISSN:0360-2559    

DOI:10.1080/03602558008069999

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

摘要:

Although the high optical clarity exhibited by a high nitrile plastic is desirable for packaging of food and beverages, exposure of the high nitrile molded articles to water at elevated temperatures causes the plastic to become hazy and the optical clarity is substantially reduced. Containers used for food and beverage packaging are sometimes exposed to water at elevated temperatures. For example, the containers are washed with hot water preparatory to being filled with product and are also exposed to water at elevated temperatures if pasteurization or sterilization of the packaged product is required after the container is filled.

ISSN:0360-2559    

DOI:10.1080/03602558008070000

出版商:Taylor & Francis Group    

年代:1980

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:10.1080/03602558008069995

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor