Wopereka wodalirika wa zinthu zonyowetsa madzi

kufotokozera mwachidule:

Zinthu zonyowetsa madzi ndi zinthu zomwe zimachepetsa mphamvu ya madzi pamwamba, zomwe zimapangitsa kuti afalikire mosavuta. Zimagwiritsidwa ntchito kwambiri m'njira zosiyanasiyana, kuphatikizapo chakudya, zodzoladzola, kupanga mapepala, kukonza madzi, sopo, kupanga shuga, kuwiritsa, kuphimba, kusindikiza ndi kupaka utoto nsalu, kuboola ndi kuyeretsa, mafuta a hydraulic ndi mafuta odzola apamwamba, zinthu zotulutsa madzi, ndi zina zambiri.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Katundu Wathupi ndi Mankhwala

Zinthu zonyowetsa, mtundu wa polyorganosiloxane yokhala ndi kapangidwe ka unyolo wa madigiri osiyanasiyana a polymerization, imagwira ntchito ngati chinthu chonyowetsa chodabwitsa. Chimapangidwa kudzera mu hydrolysis ya dimethyldichlorosilane ndi madzi kuti chipeze mphete yoyamba ya condensation. Kenako mpheteyo imasweka, kukonzedwa kuti ipange mphete ya Chemicalbook yochepa, ndikugwirizanitsidwa ndi chinthu chothandizira polymerization. Njirayi imabweretsa mitundu yosiyanasiyana ya zinthu zonyowetsa zomwe zimakhala ndi madigiri osiyanasiyana a polymerization. Zinthu zotentha zochepa zimachotsedwa kudzera mu vacuum distillation kuti zipeze zinthu zonyowetsa zomaliza.

Kupatula kukhala mafuta onyowetsa, mafuta a silicone ali ndi zinthu zina zambiri komanso ntchito zina zambiri. Amagwiritsidwa ntchito nthawi zambiri ngati chotsukira fumbi m'mafakitale monga kukonza chakudya, kupanga zodzoladzola, ndi kupanga mapepala. Mwa kuchepetsa bwino kupangika kwa thovu, mafuta a silicone amawonjezera njira yonse yopangira. Kuphatikiza apo, amagwiritsidwa ntchito ngati chosakaniza chofunikira popanga silicone resin ndi rabara ya silicone. Zipangizozi zimagwiritsidwa ntchito kwambiri monga zomatira, zowonjezera za pulasitiki zoletsa moto, zinthu zopangira zotetezera kutentha, ndi zina zambiri.

Kusinthasintha kwa mafuta a silicone kumawonekeranso bwino chifukwa chakuti amagwiritsidwa ntchito ngati chomaliza mumakampani opanga zikopa. Zimathandiza kukulitsa mawonekedwe, kapangidwe, komanso kulimba kwa zinthu zachikopa. Kuphatikiza apo, m'magawo ena osiyanasiyana, monga kupanga sopo wapamwamba kwambiri, sikuti imangogwira ntchito ngati chonyowetsa komanso imagwiranso ntchito ngati chinthu chofunikira kwambiri popanga ndi kukhazikika.

Ubwino

(1) Kugwira ntchito kwa kukhuthala kwa mafuta ndikwabwino kwambiri mu mafuta amadzimadzi, ndipo kusintha kwa kukhuthala kwa kutentha kwakukulu kumakhala kochepa. Malo ake oundana nthawi zambiri amakhala ochepera -50 ° C, ndipo ena amakhala mpaka -70 ° C. Amasungidwa kwa nthawi yayitali kutentha kochepa. Mawonekedwe ndi kukhuthala kwa zinthu zake zamafuta sizinasinthe. Ndi mafuta oyambira omwe amaganizira kutentha kwakukulu, kutentha kochepa, ndi kutentha kwakukulu.

(2) Kukhazikika kwabwino kwambiri kwa okosijeni wa kutentha, monga kutentha kwa kutentha > 300 ° C, kutayika pang'ono kwa nthunzi (150 ° C, masiku 30, kutayika kwa nthunzi ndi 2%) yokha, mayeso a okosijeni (200 ° C, 72H), kusintha kwa kukhuthala ndi asidi pang'ono.

(3) Kuteteza magetsi bwino kwambiri, kukana kuchuluka kwa voliyumu, ndi zina zotero. Pa kutentha kwabwinobwino ～ 130 ℃, sikusintha (koma mafuta sangakhale madzi).

(4) Ndi mafuta osapsa komanso opanda thovu komanso amphamvu oletsa thovu, omwe angagwiritsidwe ntchito ngati choletsa kuzizira.

(5) Kukhazikika kwabwino kwambiri kwa kumeta, komwe kumatha kuyamwa kugwedezeka ndikuletsa kufalikira kwa kugwedezeka.