Usoro ọgwụgwọ nrapado

Usoro ọgwụgwọ nrapado

Usoro ọgwụgwọ:

A na-eme ọgwụgwọ adhesives site na usoro anụ ahụ, dị ka evaporation nke ihe mgbaze, emulsion coagulation na gbazee jụrụ oyi, na ụzọ kemịkal.

• (1) Nrapado na-ekpo ọkụ na-ekpo ọkụ: polymer gbazere na-agbaze site na jụrụ oyi mgbe ọ na-agbanye elu ka a ga-ejikọta ya.

(2) Ngwọta ngwọta: Ka ihe mgbaze na-ekpochapụ na ntinye ihe ngwọta na-abawanye, ọ na-eji nwayọọ nwayọọ na-esiwanye ike ma nwee ike ụfọdụ.

(3) Emulsion nrapado: Dị ka mmiri na emulsion ji nwayọọ nwayọọ banye n'ime porous adherend na evaporates, na emulsion ịta na-aga n'ihu na-abawanye, na n'ikpeazụ n'ihi mmetụta nke elu esemokwu, na polymer colloidal particles condense. Mgbe ọnọdụ okpomọkụ dị elu, emulsion na-agbanye n'ime ihe nkiri ntanye na-aga n'ihu, ebe mgbe okpomọkụ ikuku dị ala na obere ihe nkiri na-emepụta okpomọkụ (MFT), a na-emepụta ihe nkiri nrapado na-acha ọcha na-akwụsị. Emulsion adhesives bụ tumadi polyvinyl acetate na copolymers ya na acrylic acid copolymers.

(4) Thermosetting adhesives The multifunctional monomers ma ọ bụ prepolymers nke thermosetting resins na-enweta polymerization mmeghachi omume. Ka ịdị arọ molekụla na-abawanye, ụdọ molekụla ahụ na-agbanwe wee gafee-njikọ, na-akpụ gel na-adịghị edozi ahụ ma ọ bụ isi ike. Ịgbatị oge ọgwụgwọ na ịba ụba okpomọkụ ọgwụgwọ n'ime ebe dị iche iche abụghị otu, na iweda okpomọkụ ọgwụgwọ na-esiri ike ịkwụ ụgwọ site na ịgbatị oge ahụ. N'ihi na ụfọdụ mmeghachi omume kemịkal kwesịrị ime n'etiti nrapado na elu nke adherend, nke a chọrọ oke okpomọkụ zuru oke iji gaa n'ihu.

Nrụgide ọgwụgwọ:

Ọ bara uru ka nrapado na-abanye n'ime ya kpamkpam; ọ bara uru maka iwepụ obere molekụla volatiles na-emepụta site na nrapado ọgwụgwọ mmeghachi omume; ọ bara uru maka iwepụ ihe mgbaze na-agbanwe agbanwe nke fọdụrụ na oyi akwa nrapado; ọ bara uru maka ịchịkwa oke nke oyi akwa nrapado; adhesives nwere viscosity dị elu na-enwekarị akwa nrapado ka ukwuu, na ngbanwe nke nrụgide ọgwụgwọ na-achịkwa oke oke nke akwa akwa akwa.

Mgbe etinyere gluu, hapụ ya ka ọ nọdụ ala nwa oge, nke a na-akpọ pre-curing. Mgbe viscosity nke gluu na-abawanye, tinye nrụgide iji hụ na ịdị n'otu nke ọkpụrụkpụ nke akwa gluu.

Ngwọta okpomọkụ:

Ọ bụrụ na ọgwụgwọ ọgwụgwọ dị oke ala, obe - njikọ njupụta nke oyi akwa nrapado dị oke ala, na mmeghachi omume ọgwụgwọ ezughị oke; ma ọ bụrụ na okpomọkụ na-agwọ ọrịa dị oke elu, ọ dị mfe ime ka gluu na-efunahụ ma ọ bụ mee ka oyi akwa nrapado na-agbaji, na-eme ka mbelata ike njikọ. Igwe kpo oku na-eme ka mgbasa nke ụmụ irighiri ihe dị n'etiti nrapado na akụkụ ndị jikọtara ọnụ, nke nwere ike inye aka ịmepụta njikọ kemịkal.

(1) Usoro kpo oku ozugbo n'ime oven: Jiri ngwaọrụ na-afụ ikuku iji hụ na ebufe okpomọkụ otu.

(2) Usoro kpo oku nke mpụga: A na-ebufe ọkụ ngwa ngwa n'ime akwa mkpuchi ahụ, na-ebelata oge ọgwụgwọ. Usoro ikpo ọkụ nke Ultrasonic: Ọ dị mma maka ọgwụgwọ okpomọkụ nke viscoelastic adhesives na ihe mgbaze - adhesives efu, mana ọ bụghị maka ikpo ọkụ na-ekpo ọkụ.