Kedu ka esi eme ụdị agba agba abụọ melamine ntụ ntụ?

Ebumnuche nke ihe a mepụtara ugbu a bụ iji nye usoro maka imeziwanye arụmọrụ nhazi na ndụ ngwaahịa nkemelamine ịkpụzi ntụ ntụngwaahịa, ịchekwa ihe onwunwe, ịbawanye agba nke ngwaahịa a kpụrụ akpụ, na imeziwanye ụdị ngwaahịa a kpụrụ akpụ.

Usoro nkwadebe na-agụnye nkwadebe A, nkwadebe B na nkwadebe ngwaahịa emechara.

A akụrụngwa nkwadebe nzọụkwụ

1. Mmeghachi omume: Na reactor, a na-eme resin formaldehyde ka ọ bụrụ 38% formaldehyde ngwọta na nha, na pH uru na-agbanwe na 8.5 na reactor, mgbe ahụ, a na-agbakwunye melamine n'ụzọ kwesịrị ekwesị iji meghachi omume.Kpoo ọkụ na 90 ° C ruo ebe njedebe;

2. Ịgwakọta: Mgbe jụrụ oyi ruo 70 Celsius, tinye reactant n'ime kneader, na tinye osisi pulp fiber na pigmenti A dị ka igwakorita ruru.

3. ihicha: Mgbe igwakorita, banye oven maka ihicha.Igwe ọkụ ahụ na-ejide eriri ikuku na-ekpo ọkụ na-ekpo ọkụ, nke akpọnwụwo n'ikuku na-ekpo ọkụ na 85 Celsius, na mmiri na-achịkwa n'okpuru 3.5% iji nweta ihe akọrọ.

4. Ngwunye bọọlụ: zipu ihe ndị a mịrị amị na igwe igwe, gbakwunye mmanu, onye na-agwọ ọrịa, titanium dioxide na pigmenti ihe mgbakwunye na nha, ma mezue densification na agba dabara site na igwe igwe bọọlụ na awa 9;

Nzọụkwụ nkwadebe nke components B

Agba nke akụrụngwa B dị iche na akụrụngwa A, mana usoro nkwadebe bụ otu.

Nkwadebe ngwaahịa emechaala: ngwakọta ngwakọta A na akụrụngwa Bmelamine ntụ ntụ, wee tinye ha n'ime akpa akwụkwọ ejiri ihe nkiri kpuchie ya.Ekwesịrị ịchekwa ntụ ntụ emechara na gburugburu 25 Celsius C.