Pressureless sintering of polycarbonate powder compacted at ambient temperature.: An article from: Polymer Engineering and Science
Book Details
Author(s)Linda W. Vick, Ronald G. Kander
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00098M268
ISBN-13978B00098M267
AvailabilityAvailable for download now
Sales Rank10,135,717
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on December 1, 1998. The length of the article is 5357 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Solid-state processing of polymer powders through compaction and sintering has potential advantages over conventional polymer processing methods. However, pressureless sintering of compacted polymer powders has often been unsuccessful. In a previous paper (2), room temperature compaction of polycarbonate powder was studied to better understand the fundamental mechanisms that control polymer compaction. This paper focuses on the pressureless sintering of room temperature compacted polycarbonate powder. Thermomechanical analysis was used to characterize the dependence of dimensional recovery on time, temperature, and compaction pressure for compacts formed from both aged and unaged polycarbonate. It was found that all polycarbonate compacts exhibited irreversible expansion when heated to relatively low temperatures ([approximately] 50 [degrees]C), with large-scale expansion occurring near its glass transition temperature. It was concluded that irreversible expansion of polymer compacts is driven by entropic factors. Therefore, parameters that affect the degree of particle deformation during compaction also affect the degree of dimensional recovery that occurs during pressureless sintering.
Citation Details
Title: Pressureless sintering of polycarbonate powder compacted at ambient temperature.
Author: Linda W. Vick
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: 38 Issue: 12 Page: 1985(1)
Distributed by Thomson Gale
From the author: Solid-state processing of polymer powders through compaction and sintering has potential advantages over conventional polymer processing methods. However, pressureless sintering of compacted polymer powders has often been unsuccessful. In a previous paper (2), room temperature compaction of polycarbonate powder was studied to better understand the fundamental mechanisms that control polymer compaction. This paper focuses on the pressureless sintering of room temperature compacted polycarbonate powder. Thermomechanical analysis was used to characterize the dependence of dimensional recovery on time, temperature, and compaction pressure for compacts formed from both aged and unaged polycarbonate. It was found that all polycarbonate compacts exhibited irreversible expansion when heated to relatively low temperatures ([approximately] 50 [degrees]C), with large-scale expansion occurring near its glass transition temperature. It was concluded that irreversible expansion of polymer compacts is driven by entropic factors. Therefore, parameters that affect the degree of particle deformation during compaction also affect the degree of dimensional recovery that occurs during pressureless sintering.
Citation Details
Title: Pressureless sintering of polycarbonate powder compacted at ambient temperature.
Author: Linda W. Vick
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: 38 Issue: 12 Page: 1985(1)
Distributed by Thomson Gale
