Sealant na-ezo aka na ihe mkpuchi nke na-eme ka ọdịdị nke elu mkpuchi ahụ na-eme ka ọ ghara ịdị mfe, ma nwee ụfọdụ nrapado.
Ọ bụ nrapado eji mejupụta oghere nhazi maka akara. Ọ nwere ọrụ nke mgbochi mmiri, mmiri na-adịghị, mgbochi vibration, mkpuchi ụda na mkpuchi okpomọkụ. Ọtụtụ mgbe, a na-eji ihe viscous kpọrọ nkụ ma ọ bụ nke na-adịghị akpọnwụ akpọnwụ, dị ka asphalt, resin eke ma ọ bụ resin sịntetik, roba eke ma ọ bụ roba sịntetik dị ka ihe ndabere, a na-agbakwunye ihe nrụnye inert dị ka talc, ụrọ, carbon ojii, titanium dioxide na asbestos. Plasticizers, solvents, ọgwụgwọ mmadụ, accelerators, wdg. Ọ nwere ike kewaa atọ edemede: na-agbanwe sealant, mmiri mmiri sealing gasket na akara putty. A na-eji ya eme ihe n'ọtụtụ ebe na akara nke ihe owuwu, ụgbọ njem, ngwá electronic na akụkụ.
E nwere ọtụtụ ụdị ihe mkpuchi: Silicone sealants, polyurethane sealants, polysulfide sealants, acrylic sealants, anaerobic sealants, epoxy sealants, butyl sealants, neoprene sealants, PVC sealants, asphalt sealants.
Ihe ndị bụ isi nke sealant
(1) Ọdịdị: Ọdịdị nke sealant na-ekpebikarị site na mgbasa nke ihe nkpuchi na isi. Ihe ndochi bụ ntụ ntụ siri ike. Mgbe a chụsasịrị ya site na kneader, grinder na igwe mbara ala, ọ nwere ike ịgbasa ya n'otu n'otu na rọba isi iji mepụta mma dị mma. A na-anabata obere ego nke nra ma ọ bụ ájá dị na nkịtị. Ọ bụrụ na ndochi adịghị agbasasị nke ọma, ọtụtụ irighiri irighiri ihe ga-apụta. Na mgbakwunye na mgbasa nke fillers, ihe ndị ọzọ ga-emetụtakwa ọdịdị nke ngwaahịa ahụ, dị ka ngwakọta nke adịghị ọcha, crusting, wdg. A na-ewere ikpe ndị a dị ka ihe siri ike n'ile anya.
(2) Isi ike
(3) Ike nkwụsị
(4) elongation
(5) Module tensile na ikike mbugharị
(6) Adhesion na mkpụrụ
(7) Extrusion: Nke a bụ arụmọrụ nke ihe nrụpụta ihe eji egosi ihe isi ike nke mkpuchi mgbe ejiri ya. Gluo tozuru oke agaghị enwe ike ịpụpụ ya nke ọma, ọ ga-esikwa ike ịrapara mgbe ejiri ya. Otú ọ dị, ọ bụrụ na gluu na-eme ka ọ dị gịrịgịrị nanị na-atụle extrudability, ọ ga-emetụta thixotropy nke sealant. Enwere ike tụọ extrudability site na usoro akọwapụtara na ọkọlọtọ mba.
(8) Thixotropy: Nke a bụ ihe ọzọ na-arụ ọrụ ihe owuwu nke sealant. Thixotropy bụ ihe na-abụghị nke fluidity, nke pụtara na sealant nwere ike ịgbanwe ọdịdị ya naanị n'okpuru nrụgide ụfọdụ, ma nwee ike ịnọgide na-enwe ọdịdị ya mgbe ọ na-enweghị ike mpụga. udi na-enweghị eru. Mkpebi nke sag akọwapụtara site na ọkọlọtọ mba bụ ikpe nke thixotropy nke sealant.
Oge nzipu: Nov-04-2022