Sealant: Chinhu Chinokosha muIndasitiri Yemazuva Ano uye Kuvaka

Sealant chinhu chepolymer chine yakanakisa chisungo uye chisimbiso zvivakwa, chinoshandiswa zvakanyanya mukuvaka, mota, zvemagetsi, aerospace, uye mamwe minda. Basa rayo rekutanga kuzadza mapundu, kudzivirira mvura kana gasi kubuda, uye kudzivirira kubva kune zvakatipoteredza zvinhu zvakaita semvura, UV mwaranzi, kushanduka kwekushisa, uye kemikari corrosion.

 

Zvichienderana nekuumbwa kwavo, zvisimbiso zvinonyanya kuiswa muzvikamu sesilicone sealants, polyurethane sealants, polysulfide sealants, uye acrylic sealants. Silicone sealants, nekuda kwekushomeka kwazvo kune tembiricha yakakwira uye yakaderera (-50 dhigirii kusvika 200 dhigirii), kusamira kwemamiriro ekunze, uye elasticity, ndiyo inosarudzwa zvinhu zvekuvharisa zvivakwa zvemaketeni madziro, magonhi nemahwindo. Polyurethane sealants, nekuda kwesimba rayo rakakwirira, yakanakisa abrasion kuramba, uye zvisungo zvekubatanidza, zvinowanzoshandiswa mukugadzira mota uye kuiswa chisimbiso kwemidziyo yemaindasitiri. Polysulfide sealants inobudirira mumapurojekiti ekudzivirira mvura, kunyanya munzvimbo dziri pasi pekunyudzwa kwenguva refu mumvura.

Muchikamu chekuvaka, zvisimbiso zvinoshandiswa mumaketeni emadziro majoini, kuisirwa hwindo, pasi, uye mamwe maapplication ekuona mhepo uye kusamira kwemvura kwezvivakwa uku uchiwedzera kunaka kwechivako. Muindasitiri yemotokari, zvisimbiso zvinoshandiswa kuvhara mahwindi emhepo, marambi emusoro, makamuri einjini, nedzimwe nzvimbo, kuve nechokwadi chekutyaira. Indasitiri yemagetsi inotsamira pazvisimbiso kudzivirira zvinhu zvakapfava kubva kune hunyoro neguruva, kuwedzera hupenyu hwemidziyo.

Nekukura kuri kuita ruzivo rwezvakatipoteredza,-zvinamiso zveVOC zvakaderera nemabhaibheri zvinoodegradable sealants zviri kuita tsvakiridzo nebudiriro. Mune ramangwana, kufambira mberi mune zvesainzi zvekushandisa kuchatyaira zvisimbiso pakuita kwepamusoro, hushamwari hwezvakatipoteredza, uye hungwaru hukuru hwekusangana nekuwedzera kuri kuomesera zvinodiwa zvemaindasitiri akasiyana.

Kunyange zvichiratidzika sezvisina basa, zvisimbiso chinhu chakakosha uye chakakosha muindasitiri yemazuva ano uye kuvaka, uye kufambira mberi kwetekinoroji kucharamba kuchifambisa budiriro muminda ine hukama.