Wet Strength Paper Production by Urea Formaldehyde Resin
نویسندگان
چکیده
منابع مشابه
Structure formation in urea-formaldehyde resin synthesis
The structure formation in acid promoted polycondensation and particularly in alkaline post-treatment with urea was studied by 13C NMR spectroscopy in the three-step synthesis of ureaformaldehyde resins. Trishydroxymethyl urea was identified as the constituent of the mixture of hydroxylmethylated urea derivatives obtained in alkaline conditions. The formation of methylenes linked to secondary o...
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there are adequate sources for wood adhesives, but scarcity of oil resources can affect the cost and future availability of oil based resins. for avoiding of this process, seeking for feasibility of replacement of these oil feedstocks is necessary. in present work, thermal behavior of urea formaldehyde resin modified by furfural was investigated. the thermo-gravimetry was used for this purpose,...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1957
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.11.47