Polyurea wani nau'in polymer ne na kwayoyin halitta wanda shine amsawar isocyanate tare da amine da aka ƙare polyether resin, yana samar da fili mai kama da filastik ko roba wanda ba shi da kullun.
Polyurea yana buƙatar horo na musamman da kayan aiki don aikace-aikacen filin, ko ana amfani dashi azaman mai cika haɗin gwiwa ko azaman filin da ake amfani da shi.Shundi yana da shirin ci gaba nahorar da dan kwangilaa wurin.Akwai ƙwararrun masu nema a China.
Kamar yadda aka saba,ShundiAna iya amfani da polyurea don ƙunsar kowane abu wanda za'a iya fitarwa kai tsaye zuwa tsarin magudanar ruwa na yau da kullun.Ana iya amfani dashi akan kowane siminti, ƙarfe, itace, fiberglass, saman yumbu.
Shundi polyureas sun fara haɓaka halayensu na zahiri a cikin mintuna na aikace-aikacen.Polyurea warkewa zai iya tsayayya da zafin jiki daga -40 ℃ zuwa 120 ℃, Yayin da polyurea yana da babban gilashin canji da zafi na yanayin zafi, zai ƙone lokacin da aka fallasa shi zuwa harshen wuta kai tsaye.Zai mutu da kansa lokacin da aka cire harshen wuta.Amma muna kuma da polyurea mai hana gobara don buƙatu na musamman kamar hanyoyin jirgin karkashin kasa da hanyoyin zirga-zirga.
Polyurea na iya zama mai wuya ko taushi dangane da takamaiman tsari da kuma abin da aka yi niyya.Ƙimar Durometer na iya zuwa daga Shore A 30 (mai laushi sosai) zuwa Shore D 80 (mai wuyar gaske).
A zahiri akwai nau'ikan nau'ikan tsarin polyurea aliphatic guda biyu a halin yanzu akan kasuwa.Ɗayan shine tsarin da aka fesa babban matsa lamba / zafin jiki na yau da kullun kuma ɗayan shine abin da aka sani da tsarin nau'in "polyaspartic polyurea".Wannan tsarin polyaspartic ya bambanta da cewa yana amfani da ɓangaren resin na tushen ester kuma yana da tsawon rayuwar tukunya.Ana iya amfani da shi da hannu ta amfani da rollers;goge;rake ko ma masu feshi marasa iska.Tsarin aspartic ba babban rufin gini bane na al'ada na tsarin polyurea "zafi mai zafi".Dole ne a sarrafa tsarin polyurea na kamshi na yau da kullun ta hanyar matsa lamba mai ƙarfi, dumbin fanfuna masu dumbin yawa kuma a fesa ta wani nau'in feshin bindiga.Wannan gaskiya ne kuma ga nau'in aliphatic na irin wannan tsarin, babban bambanci shine kwanciyar hankali na launi na tsarin aliphatic.
Kowane samfur akan gidan yanar gizon mu yana da sigogin Juriya na Chemical ƙarƙashin Takardun Takardun.
Ɗaya daga cikin dawakan aikin mu idan ya zo ga tsananin bayyanar sinadarai shine SWD959Bugu da ƙari, idan kuna da takamaiman sinadari da kuke hulɗa da su (ko takamaiman aikace-aikacen), jin daɗin yin hakantuntube mudon haka za mu iya taimaka muku sanin mafi kyawun tsarin don bukatun ku.
Muna da danshi magani urethane shafi da m polyaspartic shafi wanda da high yi na sinadaran juriya ga kaushi, acid ko wasu kaushi.Yana iya tsayayya da 50% H2SO4da 15% HCL.
Ya dogara da tsari, kodayake a cikin musamman na Shundi, polyurea ba zai ragu ba bayan ya warke.
Duk da haka, wannan tambaya ce mai kyau don yin wa duk wanda kuka zaɓa don siyan kayan daga gare ta - shin kayanku sun ragu ko a'a?
Muna da cikakkiyar samfurin don irin wannan aikace-aikacen, SWD9005, An gwada wannan samfurin sosai a cikin masana'antar ma'adinai, kuma ya ci gaba da yin sama da tsammanin.
Don aikace-aikacen nutsewa / ƙarfe, ku tuna cewa PUA (polyureas) da epoxy ba iri ɗaya bane.Dukkansu cikakkun bayanai ne na fasaha / nau'in samfur.Tsarin PUA suna aiki da kyau don nutsewa, amma dole ne a tsara su yadda yakamata don wannan aikace-aikacen.
Yayin da tsarin epoxy ya fi tsauri sosai, tsarin PUA yana da sassaucin ra'ayi da ƙarancin ƙima don tsarin da aka tsara yadda ya kamata.PUA kuma abu ne mai saurin dawowa zuwa sabis gabaɗaya - polyurea yana warkarwa cikin sa'o'i idan aka kwatanta da kwanaki (ko wasu lokuta makonni) don epoxies.Duk da haka, babban batu tare da irin wannan nau'in aiki da ƙananan ƙarfe shine cewa shirye-shiryen saman yana da mahimmanci.Dole ne a yi wannan daidai / gaba ɗaya.Wannan shine inda yawancin suka sami matsala yayin ƙoƙarin waɗannan ayyukan.
Duba muAikace-aikacelokuta shafukandon bayanan martaba akan wannan da sauran nau'ikan aikace-aikacen.
Gabaɗaya, fenti mai kyau 100% acrylic latex gidan fenti yana aiki da kyau akan fesa polyurea.Yawancin lokaci yana da kyau a rufe polyurea (ba da jimawa ba) a cikin sa'o'i 24 na aikace-aikacen.Wannan yana inganta mafi kyawun mannewa.Polyaspartic UV topcoat an bada shawarar yin amfani da polyurea don ingantacciyar rigakafin tsufa da juriya na yanayi.