BROWSE

Related Researcher

Author's Photo

Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication
  • Touch Screen Panel(TSP) new materials and process new materials and process
  • Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

ITEM VIEW & DOWNLOAD

아크릴계 응집제 라텍스의 합성 및 이를 이용한 NBR 라텍스의 고형분 향상

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
아크릴계 응집제 라텍스의 합성 및 이를 이용한 NBR 라텍스의 고형분 향상
Author
Park, Lee SoonCho, Kyo DongJang, KillsooLee, Chang HeeChang, Jin GyuPark, Jong Woo
Issue Date
2000-12
Publisher
Korean Society of Industrial Engineering Chemistry
Citation
JOURNAL OF THE KOREAN INDUSTRIAL AND ENGINEERING CHEMISTRY, v.11, no.8, pp.867 - 871
Abstract
고형분 함량이 높고 안정성이 우수한 NBR 라텍스를 얻기 위하여 아크릴계 응집제 라텍스(agglomeration latex)를 합성하였다. 응집제 라텍스는 산성 단량체인 methacrylic acild와 ethylacrylate를 seeded emulsion 중합법으로 합성하였다. 응집제 라텍스의 합성에 있어서 유화제의 양이 감소할수록 그리고 potassium persulfatd 개시제의 양이 증가할수록 입자경은 증가하였으며 KCl, K2CO3와 같은 eletrolyte의 첨가에 의해서도 입자경이 증가하였다. 응집제 라텍스로 응집된 NBR base latex는 bimodal 입자경 분포를 나타내었으며 농축 과정에서도 입자경의 증가가 관찰되었다. 또한 응집제 라텍스를 사용하지 않을 경우, NBR base latex는 고형분을 45 wt%이상 향상시킬 수 없었으나, 아크릴계 응집제 라텍스로 응집된 NBR latex는 고형분 54 wt%까지 안정한 상태를 유지하였다. In order to increase the solid content of NBR latex while maintaining latex stability, an acrylate type agglomeration lattices were synthesized. Seeded emulsion polymerization was used to get agglomeration latices. As the amount of emulsifier increased and that of potassium persulfate initiator decreased, the particle size of agglomerating latices increased. The addition of electrolytes, such as KCl and K2CO3, also increased the particle size of agglomeration latex. NBR latex after agglomeration process exhibited increased of particle sizes with bimodal distribution. While NBR base latex itself could be concentrated up to 45 wt% solid content, the NBR latex with added agglomeration latex could be concentrated up to 54 wt% without loosing latex stability.
URI
Go to Link
ISSN
1225-0112
Appears in Collections:
MSE_Journal Papers
Files in This Item:
아크릴계 응집제 라텍스의 합성 및 이를 이용한 NBR 라텍스의 고형분 향상.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU