Polyol na isocyanate ruru:

Polyol nwere uru hydroxyl dị elu na nnukwu ibu molekụla, nke ga-eme ka njupụta crosslinking dịkwuo elu ma nyere aka melite njupụta ụfụfụ. Idozi index isocyanate, ya bụ, molar ratio nke isocyanate na hydrogen nọ n'ọrụ na polyol, ga-eme ka ogo nke crosslinking dịkwuo elu ma mee ka njupụta ahụ dịkwuo elu. N'ozuzu, index isocyanate dị n'etiti 1.0-1.2.

 

Nhọrọ na usoro onunu ogwu nke onye na-afụ ụfụfụ:

Ụdị na usoro ọgwụgwọ nke onye na-emepụta ụfụfụ na-emetụta kpọmkwem ọnụego mgbasawanye ikuku na njupụta afụ mgbe ọ gbasịrị ụfụfụ, wee metụta ọkpụrụkpụ nke jikọrọ ọnụ. Mbelata usoro onunu ogwu nke ihe na-afụ ụfụ anụ ahụ nwere ike ibelata porosity nke ụfụfụ ma mee ka njupụta ahụ dịkwuo elu. Dịka ọmụmaatụ, mmiri, dị ka onye na-emepụta ụfụfụ kemịkalụ, na-emeghachi omume na isocyanate iji mepụta carbon dioxide. Ịba ụba nke mmiri ga-ebelata ụfụfụ ụfụfụ, na ego mgbakwunye ya kwesịrị ịchịkwa nke ọma.

 

Ọnụọgụ ihe mkpali:

Onye na-eme ihe ga-ahụrịrị na mmeghachi omume ụfụfụ na mmeghachi omume gel na usoro ịfụfụ ahụ ruru nguzozi dị ike, ma ọ bụghị nke afụ ma ọ bụ nkwụsịtụ ga-eme. Site n'ịgbakọta ogige amine siri ike nke alkaline nke nwere mmetụta dị ike na mmeghachi omume ụfụfụ na mmetụta dị ike na mmeghachi omume gel, enwere ike ịnweta ihe na-eme ka ọ dị mma maka usoro akpụkpọ ahụ.

 

Njikwa okpomọkụ:

Okpomọkụ ebu: Ọkpụrụkpụ akpụkpọ ahụ ga-abawanye ka okpomoku ebu na-ebelata. Ịbawanye okpomọkụ nke ebu ga-eme ka ọnụ ọgụgụ mmeghachi omume dịkwuo ngwa ngwa, nke na-enye aka ịmepụta usoro dị oke ọnụ, si otú ahụ na-amụba njupụta, ma oke okpomọkụ nwere ike ime ka mmeghachi omume ahụ pụọ na nchịkwa. N'ozuzu, ebu okpomọkụ na-achịkwa na 40-80 ℃.

 

Okpomọkụ na-eto:

Ijikwa ịka nká okpomọkụ ka 30-60 ℃ na oge 30s-7min nwere ike nweta ezigbo itule n'etiti demoulding ike na mmepụta arụmọrụ nke ngwaahịa.

 

Njikwa nrụgide:

Ịbawanye nrụgide n'oge usoro ụfụfụ ahụ nwere ike igbochi mgbasawanye nke afụ, mee ka ọkpụkpụ ụfụfụ dịkwuo ọnụ, ma mee ka njupụta dị elu. Otú ọ dị, nrụgide dị ukwuu ga-eme ka ihe ndị a chọrọ maka ebu ma mee ka ọnụ ahịa dịkwuo elu.

 

Ọsọ mkpali:

Ịbawanye ọsọ na-akpali akpali nke ọma nwere ike ime ka akụrụngwa na-agwakọta nke ọma, meghachi omume nke ọma, ma nyere aka ịbawanye njupụta. Otú ọ dị, ọsọ ọsọ na-akpali akpali ga-ewebata oke ikuku, na-ebute mbelata nke njupụta, ma na-achịkwa ya na 1000-5000 rpm.

 

Ọnụọgụ njupụta:

Ọnụ ego ntụtụ nke ngwakọta mmeghachi omume nke ngwaahịa na-akpụ akpụ kwesịrị ịdị ukwuu karịa ọnụọgụ ntụtụ nke ụfụfụ efu. Dabere na usoro ngwaahịa na ihe onwunwe, ọnụọgụ na-ejupụta n'ozuzu bụ 50% -100% iji nọgide na-enwe nrụgide dị elu, nke na-eme ka mmiri na-ekpo ọkụ nke onye na-emepụta ụfụfụ na oyi akwa akpụkpọ ahụ.

 

Oge nhazi ọkwa akpụkpọ ahụ:

Mgbe a wụsara polyurethane foamed n'ime ihe nlereanya ahụ, ogologo oge a na-agbatị elu ya, ka akpụkpọ ahụ dịkwuo ukwuu. Ijikwa ezi uche na-achịkwa oge nhazi mgbe ịwụsachara bụkwa otu n'ime ụzọ iji chịkwaa oke akpụkpọ ahụ.