e707004304
ORANGE EKSTRAKLASA
Dołączył: 17 Gru 2010
Posty: 612
Przeczytał: 0 tematów
Ostrzeżeń: 0/5
Skąd: England
|
 Wysłany: Pią 19:29, 31 Gru 2010 |
|
|
,[link widoczny dla zalogowanych]
Progress amino crosslinking agent - new varieties of amino crosslinking agent (a)
The methylation degree and the degree of the relative ratio of butyl this variable, it is prepared for coating processing performance, and film properties have a significant impact. 【8 now ... 【7l qualitative comparison are summarized in Table 6. The choice of crosslinking agent depends on the desired coating species overall performance,[link widoczny dla zalogowanych], a mixture of ether-type cross-linking agent D to follow the principle of popular choice,[link widoczny dla zalogowanych], but also brought a more complex variables - A,[link widoczny dla zalogowanych], D mixed ether ratio. There will be different degrees of alkylation,[link widoczny dla zalogowanych], a simple illustration. yN'iNl / NH 'iv N / CI delete-hOH ,/\YNN N \ N <+ oH + H ... ... ④ / N \} bcOC | bC | b0C} bHMMM / N \} bcOC | bC ~ OCH3 Shanghai Coatings 15 ① ② ③ monographs and Review Volume 40 No. 6 December 2002 Table 6 alkylation degree and A / butylated ratio on coating properties ★ (I) alkyl refers to the degree of methylation. ★ (2) D / methyl ether alkylation cross-linking agent ratio refers to the whole. CH, oc \ / CH2OCI-hCH, 0CH2NYNYo, V / N \ CH3o (2CH2OCH3 Wujia oxygen (a butoxy) methylene melamine PM (B) MM ★: see
Post został pochwalony 0 razy
|
|
