แจ้งเอกสารไม่ครบถ้วน, ไม่ตรงกับชื่อเรื่อง หรือมีข้อผิดพลาดเกี่ยวกับเอกสาร ติดต่อที่นี่ ==>
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
Suphitcha Phanyawong.. Melamine microcapsules containing sappan dyepolypropylene blend. Master's Degree(Materials and Production Engineering (International Program)). King Mongkut's University of Technology North Bangkok. Central Library. : King Mongkut's University of Technology North Bangkok, 2015.
Melamine microcapsules containing sappan dyepolypropylene blend
Name: Suphitcha Phanyawong.
keyword:
Melamine-formaldehyde.
LCSH:
Polypropylene.
LCSH:
Melamine.
LCSH:
Microencapsulation.
Abstract:
Natural dyes have been increasingly attracted in many applications because they are environmental friendly and cost effective. Sappan dye is a natural dye and derived from the extraction of brazilwood which is abundant in Thailand. Note that sappan dye is used for food additives, cosmetics and also textile dyeing. However, it was recognized earlier that the natural dyes cannot withstand under applying to a high temperature. To improve the thermal property of sappan dye, the dye loaded melamine-formaldehyde microcapsules were prepared by encapsulation method. The aim of this work was to study the effect of percent sappan dye in microcapsules. The appearance, color, morphology, particle size, and thermal property of these microcapsules were investigated. The microcapsules were verified as containing the sappan dye within 30 percent of loading capacity and the particle size was approximately 1 μm with low of polydispersity index (PDI). It was found that an increase of sappan dye led to decrease the particle size of sappan dye microcapsules. According to the thermal analysis result, the obtained the melamine-formaldehyde resin could serve as an efficient shell to protect sappan dye. Besides, various quantities of sappan dye microcapsules in polypropylene/microcapsules blend was produced by co-rotating twin screw extruder. The influence of sappan dye microcapsules on the compatibility between the microcapsules and polypropylene matrix was observed using scanning electron microscope. In addition, the tensile modulus of polypropylene blended with 5 wt percent sappan dye microcapsules increased by 18 percent compared to the neat polypropylene. Furthermore, all polypropylene/microcapsules blend presented an improvement of thermal stability in comparison to the polypropylene blended with pure sappan dye. Therefore, it was found that the sappan dye microcapsules can be further applied as the colorant in plastic and textile industry
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Name: Suchart Siengchin
Role:
Thesis advisor.
Email :
suchart.s@tggs.kmutnb.ac.th
Name: Udom Asawapirom
Role:
Thesis advisor.
Created:
2015
Modified:
2021-02-22
Issued:
2021-02-22
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Engineering
Level: Master's Degree
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.022273 วินาที
Suphitcha Phanyawong.
| Title | Contributor | Type |
|---|---|---|
| Melamine microcapsules containing sappan dyepolypropylene blend
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Suphitcha Phanyawong. | Suchart Siengchin Udom Asawapirom | วิทยานิพนธ์/Thesis |
Suchart Siengchin
Udom Asawapirom
| Title | Creator | Type and Date Create |
|---|---|---|
| Melamine microcapsules containing sappan dyepolypropylene blend
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Suchart Siengchin;Udom Asawapirom | Suphitcha Phanyawong. | วิทยานิพนธ์/Thesis |