東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

The physico-chemical investigation o...

Huo, Shanshan.

FindBook

Google Book

Amazon

博客來

The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites./
作者:	Huo, Shanshan.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2012,
面頁冊數:	127 p.
附註:	Source: Dissertations Abstracts International, Volume: 74-02, Section: B.
Contained By:	Dissertations Abstracts International74-02B.
標題:	Physical chemistry. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3517725
ISBN:	9781267482372

The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites.
Huo, Shanshan.

The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites. - Ann Arbor : ProQuest Dissertations & Theses, 2012 - 127 p.

Source: Dissertations Abstracts International, Volume: 74-02, Section: B.

Thesis (Ph.D.)--North Dakota State University, 2012.

Bast fibers are one of most widely used types of cellulosic natural fibers. Flax fibers, a specific type of bast fiber, have historically been used as reinforcements in composites because they offer competitive advantages, including environmental and economic benefits, over mineral-based reinforcing materials. However, the poor interfacial properties due to the hydrophilicity of flax fibers and the hydrophobicity of most polymer matrices reduce the mechanical performance of flax thermoset composites. On the other hand, the structure of flax fiber is more complex than synthetic fibers, which causes most of traditional mechanical tests from the transverse direction to evaluate the interfacial properties of flax composites are not valid. In this study, the physical and chemical properties of flax fibers, vinyl ester resin and their composites are investigated. A comprehensive understanding of flax fiber, vinyl ester systems and their composites has been established. Surface modifications to the flax fiber and chemical manipulations on vinyl ester systems have been studied to improve the interfacial properties of flax/vinyl ester biocomposites. A new chemical manipulation method for vinyl ester system has been invented. The specific interlaminar shear strength of alkaline treated flax/VE with 1.5% AR shows approximately 149% increase than untreated flax/VE composites. NaOH/Ethanol treated flax/VE with AR shows 33% higher in specific flexural modulus and 73% better in specific flexural strength than untreated flax/VE composites. In addition, AR modified alkaline treated flax composites performs approximately 75% better in specific tensile modulus and 201% higher in specific tensile strength than untreated flax/VE composites. Flax/VE composite with high elastic modulus, which is higher than their theoretically predicted elastic modulus, was achieved. The effects of thermal properties of flax fibers and vinyl ester resin systems on the interfacial properties of their biocomposites were also studied. The theory of modifying the thermal properties of flax and vinyl ester to improve the interfacial adhesion has been proved by the study of the thermal residual stresses in their composites by XRD techniques.

ISBN: 9781267482372Subjects--Topical Terms:

1981412
Physical chemistry.
Subjects--Index Terms:

Biocomposites

The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites.
LDR:03466nmm a2200385 4500 001 2284462
005 20211123073027.5
008 220723s2012 ||||||||||||||||| ||eng d
020 $a 9781267482372
035 $a (MiAaPQ)AAI3517725
035 $a (MiAaPQ)ndsu:10073
035 $a AAI3517725
040 $a MiAaPQ $c MiAaPQ
100 1 $a Huo, Shanshan. $3 3563630
245 1 4 $a The physico-chemical investigation of interfacial properties in natural fiber/vinyl ester biocomposites.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2012
300 $a 127 p.
500 $a Source: Dissertations Abstracts International, Volume: 74-02, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Ulven, Chad A.
502 $a Thesis (Ph.D.)--North Dakota State University, 2012.
520 $a Bast fibers are one of most widely used types of cellulosic natural fibers. Flax fibers, a specific type of bast fiber, have historically been used as reinforcements in composites because they offer competitive advantages, including environmental and economic benefits, over mineral-based reinforcing materials. However, the poor interfacial properties due to the hydrophilicity of flax fibers and the hydrophobicity of most polymer matrices reduce the mechanical performance of flax thermoset composites. On the other hand, the structure of flax fiber is more complex than synthetic fibers, which causes most of traditional mechanical tests from the transverse direction to evaluate the interfacial properties of flax composites are not valid. In this study, the physical and chemical properties of flax fibers, vinyl ester resin and their composites are investigated. A comprehensive understanding of flax fiber, vinyl ester systems and their composites has been established. Surface modifications to the flax fiber and chemical manipulations on vinyl ester systems have been studied to improve the interfacial properties of flax/vinyl ester biocomposites. A new chemical manipulation method for vinyl ester system has been invented. The specific interlaminar shear strength of alkaline treated flax/VE with 1.5% AR shows approximately 149% increase than untreated flax/VE composites. NaOH/Ethanol treated flax/VE with AR shows 33% higher in specific flexural modulus and 73% better in specific flexural strength than untreated flax/VE composites. In addition, AR modified alkaline treated flax composites performs approximately 75% better in specific tensile modulus and 201% higher in specific tensile strength than untreated flax/VE composites. Flax/VE composite with high elastic modulus, which is higher than their theoretically predicted elastic modulus, was achieved. The effects of thermal properties of flax fibers and vinyl ester resin systems on the interfacial properties of their biocomposites were also studied. The theory of modifying the thermal properties of flax and vinyl ester to improve the interfacial adhesion has been proved by the study of the thermal residual stresses in their composites by XRD techniques.
590 $a School code: 0157.
650 4 $a Physical chemistry. $3 1981412
650 4 $a Mechanical engineering. $3 649730
653 $a Biocomposites
653 $a Fiber/vinyl esters
653 $a Interface/interphase
653 $a Natural fiber
653 $a Resin manipulation
653 $a Suface treatments
690 $a 0494
690 $a 0548
710 2 $a North Dakota State University. $b Mechanical Engineering. $3 2095309
773 0 $t Dissertations Abstracts International $g 74-02B.
790 $a 0157
791 $a Ph.D.
792 $a 2012
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3517725