東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

Sustainable Manufacturing and Recycling of Thermosets and Their Composites.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Sustainable Manufacturing and Recycling of Thermosets and Their Composites./
Author:	He, Xu.
Description:	1 online resource (132 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 82-08, Section: B.
Contained By:	Dissertations Abstracts International82-08B.
Subject:	Materials science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28157657click for full text (PQDT)
ISBN:	9798557085731

Sustainable Manufacturing and Recycling of Thermosets and Their Composites.
He, Xu.

Sustainable Manufacturing and Recycling of Thermosets and Their Composites. - 1 online resource (132 pages)

Source: Dissertations Abstracts International, Volume: 82-08, Section: B.

Thesis (Ph.D.)--University of Colorado at Denver, 2020.

Includes bibliographical references

Polymers are an integral component of modern life, permeating the food and health industries and enhancing consumer safety, wellness, and convenience. With the increasing amount of polymers being used, their waste materials are reaching a significant level, leading to ever-increasing contaminations in the waterways, wildlife, and human bodies. Synthetic polymers are divided into two basic categories: thermoplastics that can be easily recycled due to their un-crosslinked networks, and thermosets with permanently crosslinked networks that are difficult to reprocessed using conventional techniques. Recently, dynamic covalent chemistry has been employed to develop the covalent adaptable network (CAN) polymers, which enable thermosets to be malleable, self-healable, and fully recyclable. When combined with the emerging advanced manufacturing techniques, CANs can not only enhance the manufacturing capabilities and material properties of polymers and their composites but also help reduce the polymer wastes to enable green and sustainable manufacturing processes. This thesis focuses on the healing and recycling capabilities of thermosetting polymers based on CANs, as well as their integration with polymer manufacturing processes to reduce wastes, enhance material properties, and enable new manufacturing techniques. First, the surface welding behavior of CANs is studied to understand how the processing temperature, time, and surface roughness will affect the welding strength. The recyclability of engineering thermosets using organic solvents is then studied, and the influences of material and processing conditions on the recycling speed and properties of recycled materials are investigated. Using the direct ink write (DIW) 3D printing method, the solvent-assisted recycling of CANs is shown to effectively enable the recyclable 3D printing of thermosets and their conductive composites for electronics applications. It also enables new manufacturing methods for thermoset composites with continuous carbon fiber. Overall, the application of CANs shows great potential to enable sustainable manufacturing and recycling methods of thermosets and their composites for a future sustainable society.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798557085731Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Food industriesIndex Terms--Genre/Form:

542853
Electronic books.

Sustainable Manufacturing and Recycling of Thermosets and Their Composites.
LDR:03903nmm a2200529K 4500 001 2353289
005 20230306113752.5
006 m o d
007 cr mn ---uuuuu
008 241011s2020 xx obm 000 0 eng d
020 $a 9798557085731
035 $a (MiAaPQ)AAI28157657
035 $a AAI28157657
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a He, Xu. $3 3693630
245 1 0 $a Sustainable Manufacturing and Recycling of Thermosets and Their Composites.
264 0 $c 2020
300 $a 1 online resource (132 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 82-08, Section: B.
500 $a Advisor: Yu, Kai.
502 $a Thesis (Ph.D.)--University of Colorado at Denver, 2020.
504 $a Includes bibliographical references
520 $a Polymers are an integral component of modern life, permeating the food and health industries and enhancing consumer safety, wellness, and convenience. With the increasing amount of polymers being used, their waste materials are reaching a significant level, leading to ever-increasing contaminations in the waterways, wildlife, and human bodies. Synthetic polymers are divided into two basic categories: thermoplastics that can be easily recycled due to their un-crosslinked networks, and thermosets with permanently crosslinked networks that are difficult to reprocessed using conventional techniques. Recently, dynamic covalent chemistry has been employed to develop the covalent adaptable network (CAN) polymers, which enable thermosets to be malleable, self-healable, and fully recyclable. When combined with the emerging advanced manufacturing techniques, CANs can not only enhance the manufacturing capabilities and material properties of polymers and their composites but also help reduce the polymer wastes to enable green and sustainable manufacturing processes. This thesis focuses on the healing and recycling capabilities of thermosetting polymers based on CANs, as well as their integration with polymer manufacturing processes to reduce wastes, enhance material properties, and enable new manufacturing techniques. First, the surface welding behavior of CANs is studied to understand how the processing temperature, time, and surface roughness will affect the welding strength. The recyclability of engineering thermosets using organic solvents is then studied, and the influences of material and processing conditions on the recycling speed and properties of recycled materials are investigated. Using the direct ink write (DIW) 3D printing method, the solvent-assisted recycling of CANs is shown to effectively enable the recyclable 3D printing of thermosets and their conductive composites for electronics applications. It also enables new manufacturing methods for thermoset composites with continuous carbon fiber. Overall, the application of CANs shows great potential to enable sustainable manufacturing and recycling methods of thermosets and their composites for a future sustainable society.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Materials science. $3 543314
650 4 $a Industrial engineering. $3 526216
650 4 $a Food science. $3 3173303
650 4 $a Polymer chemistry. $3 3173488
650 4 $a Thermodynamics. $3 517304
653 $a Food industries
653 $a Health industries
653 $a Consumer safety
653 $a Consumer wellness
653 $a Convenience
653 $a Contaminations
653 $a Waterways
653 $a Wildlife
653 $a Synthetic polymers
653 $a Covalent adaptable network (CAN) polymers
653 $a Thermosetting
653 $a 3D printing
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0794
690 $a 0495
690 $a 0474
690 $a 0338
690 $a 0546
690 $a 0359
690 $a 0348
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a University of Colorado at Denver. $b Mechanical Engineering. $3 3693631
773 0 $t Dissertations Abstracts International $g 82-08B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28157657 $z click for full text (PQDT)