Synthesis of Urea Formaldehyde Resin 발표자료 [A+]

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"Synthesis of Urea Formaldehyde Resin 발표자료 [A+]"에 대한 내용입니다.

목차

1. 실험 목적
2. 실험 방법
3. 실험 원리
4. 실험 결과
5. 고찰
6. 참고문헌

본문내용

실험 방법

Urea-formaldehyde 수지의 합성 방법
(1) 35% Formaldehyde 0.024 mol 을 둥근 플라스크에 투입, aqueous ammonia를 이용하여 pH가 7.5 ~ 8.5로 조절한다.(2) 반응기를 65 °C 로 승온 시킨 후 1시간 동안 교반 및 가열을 실시한다.(3) (2)의 혼합물을 교반시키면서 urea 0.02 mol 을 첨가하고, 1시간동안 100 °C가 되도록 천천히 승온을 실시한다.

참고 자료

G.A. Ormondroyd, in Wood Composites, 2015
J.A. Brydson, in Plastics Materials (Seventh Edition), 1999
KSV Krishna Rao1, K Madhusudana Rao2, PV Nagendra Kumar1, and Il-Doo Chung3*, "Novel Chitosan-based pH Sensitive Micro-networks for the Controlled Release of 5-Fluorouracil," Iranian Polymer Journal 19 no.4 (2010): 265-276.
Abd Ghani Aizat1, Bawon Paiman1*, Seng Hua Lee2 and Ashaari Zaidon1,2, "Physico-Mechanical Properties and Formaldehyde Emission of Rubberwood Particleboard Made With UF Resin Admixed With Ammonium and Aluminium-Based Hardeners," Pertanika J. Sci. & Technol. 27 no.1 (2019): 473-488.
"IR Spectrum Table & Chart," merck , n.d. 수정, 2022.11.2 접속, https://www.sigmaaldrich.com/KR/ko/technical-documents/technical-article/analytical-chemistry/photometry-and-reflectometry/ir-spectrum-table.
Ayodele A, Abdullahi I, Benson A. Concise Chemistry of Urea Formaldehyde Resins and Formaldehyde Emission1(2): 2020. IOIC. MS.ID.000507.
Ana Antunes, Nádia Paiva, João Ferra, Jorge Martins, Luísa Carvalho, Ana Barros-Timmons, Fernão D. Magalhães, Highly flexible glycol-urea-formaldehyde resins, European Polymer Journal, Volume 105, 2018, Pages 167-176
Impact of the Synthesis Procedure on Urea-Formaldehyde Resins Prepared by Alkaline–Acid Process Carolina Gonçalves, João Pereira, Nádia Paiva, João Ferra, Jorge Martins, Fernão Magalhães, Ana Barros-Timmons, and Luísa Carvalho Industrial & Engineering Chemistry Research 2019 58 (14), 5665-5676
Sun, Q. & Hse, Chung-Yun & Shupe, Todd. (2014). Effect of Different Catalysts on Urea-Formaldehyde Resin Synthesis. Journal of Applied Polymer Science. 131.
Li, Taohong, Jiankun Liang, Ming Cao, Xiaoshen Guo, Xiao-guang Xie and Guan-ben Du. “Re‐elucidation of the acid‐catalyzed urea–formaldehyde reactions: A theoretical and 13C‐NMR study.” Journal of Applied Polymer Science 133 (2016):
Zhigang Wu, Hong Lei, Guanben Du, Ming Cao, Xuedong Xi & Jiankun Liang (2016). Urea–formaldehyde resin prepared with concentrated formaldehyde, Journal of Adhesion Science and Technology, 30:24, 2655-2666
Kumar, Anuj, Arun Gupta and Korada Viswanatha Sharma. “Thermal and mechanical properties of urea-formaldehyde (UF) resin combined with multiwalled carbon nanotubes (MWCNT) as nanofiller and fiberboards prepared by UF-MWCNT.” Holzforschung 69 (2014): 199 - 205.
Bhandari, Netra Lal, Babu Raj Dhungana, Ralf Lach, Sven Henning and Rameshwar Adhikari. “Synthesis and Characterization of Urea–Formaldehyde Eco-Friendly Composite Based On Natural Fibers.” Journal of Institute of Science and Technology (2019): n. pag.
Popović, Mlađan & Miljkovic, Jovan & Budinski-Simendic, Jaroslava & Pavličević, J. & Ristić, Ivan. (2011). Curing characteristics of low emission urea-formaldehyde adhesive in the presence of wood. Wood research. 56. 589-600.