國立虎尾科技大學 |

Characterization of Particleboard Panels Manufactured from Eastern Redcedar Using Nano Particle Added Modified Starch as Binder.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Characterization of Particleboard Panels Manufactured from Eastern Redcedar Using Nano Particle Added Modified Starch as Binder./
作者:	Chotikhun, Aujchariya.
面頁冊數:	1 online resource (183 pages)
附註:	Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
Contained By:	Dissertation Abstracts International79-04B(E).
標題:	Wood sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9780355390407

Characterization of Particleboard Panels Manufactured from Eastern Redcedar Using Nano Particle Added Modified Starch as Binder.
Chotikhun, Aujchariya.

Characterization of Particleboard Panels Manufactured from Eastern Redcedar Using Nano Particle Added Modified Starch as Binder. - 1 online resource (183 pages)

Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

The objectives of this study were to manufacture experimental particleboards and evaluate their properties. The composite panels were manufactured from Eastern redcedar using modified starch as a green binder and adding nano SiO2 particles as a reinforcement material. Characteristics of nine different types of panel having three target density levels of 0.60, 0.70, and 0.80 g/cm3 and three target nanoparticle ratios of 0%, 1%, and 3% of 15% modified starch content (w/w) were evaluated. Mechanical properties of panels, namely modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond strength (IB) were tested. Water absorption (WA), thickness swelling (TS), surface roughness (SR), scanning electron microscopy (SEM), and formaldehyde emission of the samples were considered as their physical properties. The termite resistance of specimens was also studied to evaluate in the form of choice and no-choice bioassays. Based on finding in this work, the overall of mechanical properties of samples met the American National Standards Particleboard ANSI A208.1-2012. The bending strength values of samples increased with increasing their density levels. The highest bending strength values were found those made with 1% of nanoparticle. The IB values of samples decreased when their nanoparticle contents were increased from 1 to 3%. The samples showed poor dimensional stability characteristics and they increased with increasing density level as well nanoparticle content. Surface roughness values of samples had average of Ra, Rz, and Rmax as 7.81, 51.15, and 73.70 microm, respectively. The formaldehyde emission of samples resulted in a very low emission of 0.07 ppm. No significant differences between choice and no-choice termite resistance with adding nanoparticle in different contents of samples was found. The weight loss values for the choice tests were available to foraging termites, radiata pine sustained 87.65% weight loss compared with 9.92-14.07% weight loss for panel samples. In no-choice feeding tests, panel samples sustained less feeding damage compared with radiata pine sapwood and overall survival rate was less than 2%, compared with more than 87% in radiata pine control samples as a result of 12 weeks. In the light of this study, it appears that such experimental panels made from Eastern redcedar could have a potential to be considered as an environmentally friendly value-added product without having substantial adverse influence on their properties.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355390407Subjects--Topical Terms:

1179683
Wood sciences.
Index Terms--Genre/Form:

554714
Electronic books.

Characterization of Particleboard Panels Manufactured from Eastern Redcedar Using Nano Particle Added Modified Starch as Binder.
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500 $a Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
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504 $a Includes bibliographical references
520 $a The objectives of this study were to manufacture experimental particleboards and evaluate their properties. The composite panels were manufactured from Eastern redcedar using modified starch as a green binder and adding nano SiO2 particles as a reinforcement material. Characteristics of nine different types of panel having three target density levels of 0.60, 0.70, and 0.80 g/cm3 and three target nanoparticle ratios of 0%, 1%, and 3% of 15% modified starch content (w/w) were evaluated. Mechanical properties of panels, namely modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond strength (IB) were tested. Water absorption (WA), thickness swelling (TS), surface roughness (SR), scanning electron microscopy (SEM), and formaldehyde emission of the samples were considered as their physical properties. The termite resistance of specimens was also studied to evaluate in the form of choice and no-choice bioassays. Based on finding in this work, the overall of mechanical properties of samples met the American National Standards Particleboard ANSI A208.1-2012. The bending strength values of samples increased with increasing their density levels. The highest bending strength values were found those made with 1% of nanoparticle. The IB values of samples decreased when their nanoparticle contents were increased from 1 to 3%. The samples showed poor dimensional stability characteristics and they increased with increasing density level as well nanoparticle content. Surface roughness values of samples had average of Ra, Rz, and Rmax as 7.81, 51.15, and 73.70 microm, respectively. The formaldehyde emission of samples resulted in a very low emission of 0.07 ppm. No significant differences between choice and no-choice termite resistance with adding nanoparticle in different contents of samples was found. The weight loss values for the choice tests were available to foraging termites, radiata pine sustained 87.65% weight loss compared with 9.92-14.07% weight loss for panel samples. In no-choice feeding tests, panel samples sustained less feeding damage compared with radiata pine sapwood and overall survival rate was less than 2%, compared with more than 87% in radiata pine control samples as a result of 12 weeks. In the light of this study, it appears that such experimental panels made from Eastern redcedar could have a potential to be considered as an environmentally friendly value-added product without having substantial adverse influence on their properties.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Wood sciences. $3 1179683
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655 7 $a Electronic books. $2 local $3 554714
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710 2 $a Oklahoma State University. $b Natural Resources and Ecology Management. $3 1179714
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