Tsarin warkewa m

Tsarin warkewa m

Hanyar warkewa:

Ana yin maganin adhesives ta hanyoyin jiki, kamar fitar da kaushi, emulsion coagulation da narkewar sanyaya, da hanyoyin sinadarai.

• (1) Adhesive mai zafi: Narke polymer yana ƙarfafawa ta hanyar sanyaya bayan ya jika saman da za a haɗa shi.

(2) Magani m: Kamar yadda sauran ƙarfi evaporates da bayani maida hankali kara, shi a hankali ƙarfafa kuma yana da wani ƙarfi.

(3) Emulsion m: Kamar yadda ruwa a cikin emulsion sannu a hankali shiga cikin porous adherend da evaporates, da emulsion taro ci gaba da karuwa, kuma a karshe saboda sakamakon surface tashin hankali, da polymer colloidal barbashi condense. Lokacin da yanayin zafin jiki ya yi girma, emulsion yana ƙunshewa cikin fim ɗin mai ci gaba da ɗaukar hoto, yayin da lokacin da yanayin zafi ya yi ƙasa kuma mafi ƙarancin zafin jiki na fim (MFT), an kafa fim ɗin mannewa fari mai katsewa. Emulsion adhesives ne yafi polyvinyl acetate da copolymers da acrylic acid copolymers.

(4) Thermosetting adhesives The multifunctional monomers ko prepolymers na thermosetting resins sha polymerization halayen. Yayin da nauyin kwayoyin halitta ke ƙaruwa, sarƙoƙi na kwayoyin suna canzawa kuma suna ƙetare - hanyar haɗin gwiwa, suna samar da gel maras narkewa ko tushe na asali. Tsawaita lokacin warkewa da ƙara yawan zafin jiki a cikin wani kewayon ba daidai ba ne, kuma rage zafin warkewa yana da wahala a ramawa ta hanyar tsawaita lokacin. Saboda wani nau'in sinadari yana buƙatar faruwa tsakanin manne da saman abin mannewa, wannan yana buƙatar isasshen zafin jiki don ci gaba.

Matsin magani:

Yana da amfani ga mannewa don cikawa sosai a saman; yana da fa'ida don cire ƙananan ƙananan ƙwayoyin ƙwayoyin cuta da aka samar ta hanyar maganin warkewa; yana da fa'ida don cire abubuwan kaushi masu canzawa da suka rage a cikin manne; yana da amfani don sarrafa kauri na m Layer; adhesives tare da babban danko sau da yawa suna da yadudduka masu kauri, kuma daidaitawar matsin lamba yana sarrafa kewayon kauri na manne.

Bayan an shafa manne sai a bar shi ya zauna na wani lokaci, wanda ake kira pre-curing. Lokacin da danko na manne ya karu, yi matsa lamba don tabbatar da daidaiton kauri na manne.

Yanayin zafin jiki:

Idan zafin zafin jiki ya yi ƙasa da ƙasa, giciye - Yawan haɗin layin manne yayi ƙasa da ƙasa, kuma maganin warkewar bai cika ba; idan zafin jiki na warkewa ya yi yawa, yana da sauƙi don sa manne ya yi hasara ko sanya manne Layer ya karye, yana haifar da raguwar ƙarfin haɗin gwiwa. Dumama yana da amfani ga yaduwar kwayoyin halitta tsakanin manne da sassan da aka haɗa, wanda zai iya taimakawa wajen samar da haɗin gwiwar sinadaran.

(1) Hanyar dumama kai tsaye a cikin tanda: Yi amfani da na'urar busa iska don tabbatar da canja wurin zafi iri ɗaya.

(2) Hanyar dumama na waje: Ana canja zafi da sauri zuwa ciki na mannen manne, yana rage lokacin warkewa sosai. Hanyar dumama Ultrasonic: Ya dace da maganin zafi na viscoelastic adhesives da sauran ƙarfi - adhesives kyauta, amma bai dace da adhesives masu tsauri ba.