Results 111 to 120 of about 947 (216)

Cresol Novolac/Epoxy Networks: Synthesis, Properties, and Processability

open access: yes, 2001
Void-free phenolic networks have been prepared by the reaction of phenolic novolac resins with various diepoxides. The stoichiometric ratio can be adjusted to achieve networks with good mechanical properties while maintaining excellent flame retardance.
Lin-Gibson, Sheng
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Application of Liquefied Wood for Preparing Epoxidized Novolac-type Phenol-Formaldehyde Resins and the Properties of Cured Resins

open access: yes, 2014
本研究將柳杉(Cryptomeria japonica; Japanese fir)木材以酚為溶劑,H2SO4或HCl為催化劑進行液化處理,並將酚液化柳杉及酚分別與福馬林在酸性條件下合成Novolac型PF樹脂;進一步則將此Novolac型PF樹脂與環氧氯丙烷反應製備環氧化Novolac型PF樹脂,並探討此環氧化Novolac型PF樹脂以三乙基四胺(Triethylene tetramine; TETA)、順丁烯二酸酐(Maleic anhydride; MA)、六亞甲基四胺 ...
謝漢民, Hsieh, Han-Min
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液化柳杉木材製備 Novolac/Epoxy 複合系樹脂之性質

open access: yes, 2018
本研究將柳杉(Cryptomeria japonica; Japanese cedar)木材以酚或酚/雙酚 A 為溶劑,H2SO4 為催化劑進行液化處理,並將液化柳杉及酚分別與福馬林反應合成 Novolac 型酚醛樹脂(Phenol-formaldehyde resin; PF),另以雙酚 A 與環氧氯丙烷 反 應 合 成 環 氧 樹 脂 ; 並 將 Novolac 樹 脂 與 環 氧 樹 脂 混 合 製 備 摻 合 樹 脂 (Polyblending resin),或與環氧氯丙烷反應製備環氧化 PF ...
朱建芳, Chien-Fang Chu
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Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography

open access: yes, 1999
C-13-NMR spectroscopy and gel-permeation chromatography studies were carried out on different samples of typical commercial phenol-formaldehyde novolac resins. Six random novolac resins (NLO 1-6), with decreasing ratios of phenol/formaldehyde from 1:0.75
Zakrzewska, Joanna   +3 more
core  

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