Polyurea - ndichiyani? polyurea kumatira

Njira wosindikiza zokutira ndi zinthu structural akhala m'magulu awiri: zachilengedwe ndi kupanga zipangizo. Oddly zokwanira, masiku ano pali malo zakuthupi zachilengedwe yaiwisi, amene amapambana angapange amene ntchito. Komanso pakati pa nthumwi za mmalo kupanga zipangizo chikhalidwe pali woyenera njira zambiri. Zino nthandala ndi polyurea. Kodi ndi chifukwa chake anafunika - mafunso awa kwa nthawi yaitali sikugwirizana kwa omanga akatswiri, koma yosavuta layman ayenera kumvetsetsa iwo mwatsatanetsatane. Chifukwa makhalidwe wapadera wa nkhaniyi kupanga limachititsa kuchita apamwamba kutchinjiriza, m'malo ambiri zipangizo bwino za gululo.

General zokhudza polyurea

Zakuthupi ndi kupanga polima ndi matabwa ake akufanana polyurethanes, amene apanga ndi copolymerization wa diisocyanates. Ndithudi, kulowa mu gulu la elastomers ndi makhalidwe anatsimikiza wogwidwa polyurea. Kodi izo kwa maganizo a tiligwiritse ntchito? The zakuthupi angathe kupanga ❖ kuyanika olimba ndi cholimba. Mlingo wa kukanidwa anachita si mkulu Komabe, kupanga mankhwala akamaumba ayenera kuchita zina kusintha sayansi.

Mbali ina ya nkhaniyo kupanga chifukwa nucleophilicity mkulu wa amines. Izi zikutanthauza kuti kapangidwe ka mankhwala yomalizidwa saganizira chinyezi. Ndi khalidwe ili, ndi kuzindikiridwa wina wa ntchito yaikulu imene ntchito pomanga polyurea ❖ kuyanika - kumatira.

mitundu ya polyurea

Amene anganene kuti gulu lonse la ma polima kupanga ali cholukanalukana ndi nzeru zina zingapangitse zosintha kwa wina ndi mzake. Komabe, mu polyurea, pali awiri subspecies mwapadera kuti: aliphatic ndi zonunkhira mankhwala. The zosinthika woyamba ndi chidwi mu kuti angagwiritsidwe ntchito kupanga UV kugonjetsedwa ❖ kuyanika. Ie processing polyurea mu mawonekedwe a ❖ kuyanika si opunduka ndi sasiya mtundu mchikakamizo cha dzuwa.

Mtundu chachiwiri - onunkhira polyurea amene angathe kuonedwa kuti zinthu zosunthika. Choncho, ngati aliphatic abwino kwambiri ❖ kuyanika kuteteza denga chimake izi ndi abwino kwa kumatira la maziko, ndipo monga njira kuchitira pamalo yokongola m'nyumba. Komanso, polyurea kumatira ntchito lero kwa kupanga zida ndi magalimoto, komanso chilengedwe cha zotchinga kugonjetsedwa zoteteza za malo hydro ndi maofesi.

Chimodzi-chigawo ndi ziwiri zikuluzikulu

Kuti adziwe choonadi cha udani umenewu ayenera kukhala ndi mfundo za polyurea anachita. Nkhani muyezo analemba ziwiri zikuluzikulu, amene amachita mchikakamizo cha chothandizira a. Ndiyo ndondomeko solidification kumachitika kudzera mwa chigawo wothandiza. Tsopano m'pofunika kuti akonze funso la chimene ali limodzi-chigawo polyurea. Ndi chiyani icho mu ndondomeko ya kumatira zokutira? Ndi yabwino ntchito mfundozo, sikutanthauza kuthandiza munthu zimene, mwachitsanzo, crystallization ikuchitika paokha, wakupatsani kuti processing Buku.

Zingaoneke yosavuta kugwiritsa ntchito Kankhani-chigawo nyimbo Ayenela mu malo oyamba, akukankha kwambiri wovuta bicomponent analogue. Komabe, mwa mawu a mphamvu ya zinthu zayamba kusintha kwina. Chimodzi-chigawo nyimbo ayenera kugwiritsidwa ntchito ngati chitetezo wothandiza koma udindo processing magawo ochiritsira polyurea iyenera kugwiritsidwa ntchito. Ndi manja ake ndipo ingagwiritsidwe ntchito ziwiri zikuluzikulu, chinthu chachikulu - kugwiritsa ntchito zipangizo zina zapadera kwa cholinga ichi.

kumatira luso urea

Pali njira zingapo zimene mtundu wa kumatira umagwiritsidwa ntchito. Izi processing mabeseni pamalo, akusindikiza maziko ndi madenga a chitetezo madzi. Nthawi zambiri, ❖ kuyanika umagwiritsidwa ndi sputtering ndi woonda wosanjikiza njira. Kusiyana njira mwina chifukwa zofunika za katundu pa chivundikiro, zochitika kunja, ndi mlingo wa guluu wolimba kwambiri. D. Kachiwiri, kumatira polyurea akhoza anachita ntchito nyimbo limodzi kapena awiri chigawo. Pokambirana ndi zinthu monga maziko ndi nyumba pa denga, ndi zofunika kugwiritsa ntchito yachiwiri mtundu njira, kuyambira makhalidwe usanati mphamvu. Zochepa kugonjetsedwa ndi makhalidwe thupi kumatira angagwiritsidwe ntchito ngati ❖ kuyanika wothandiza zozitetezera.

Buku processing

Monga tanenera kale, chifukwa palokha processing yabwino chimodzi chigawo zikuchokera. Patsogolo chuma ntchito ayenera kuchepetsedwa ndi polyurea madzi. Komabe, dilution ndi zizichitidwa yekha pansi zinthu kukhuthala otsika. Nthawi zina ndi okwanira akuyambitsa njira yothetsera mtundu pachilichonse. Nthawi zambiri, Buku ntchito polyurea sikutanthauza okhudzidwa chida chapadera kapena zigawo zina wothandiza. Lifunika ntchito ndi wodzigudubuza kapena burashi. Koma ntchito ndi pamalo zitsulo, izo m'pofunika kugwiritsa ntchito phunziroli. Amagwiritsidwanso ntchito pa matenda a kali galasi. Nditamaliza kumatira ayenera kudikira tsiku lina kuphimba anapeza kuuma chokwanira.

Processing zipangizo zina zapadera

omanga Professional kukonzekera ndi polyurea kutsitsi ntchito zipangizo zina zapadera. Makamaka kwa zosowa zikuphatikizapo mayunitsi kwa kupopera kosatayana zokutira zitsulo zokutira. Childs, zida izi, ntchito pa kuthamanga ndi wokhoza kusunga khumi ndi zikulumikizana maphikidwe kwa polyurea. The zitsanzo atsopano zida kutsatira polyurea anapereka mayunitsi zinchito kwa Kupenda ankachitira mlingo pamwamba zizindikiro kusakaniza mamita otaya ndi zipangizo zina kuti tizikonda ergonomics zida.

ntchito zina

Kuphatikiza kuuma ndi kukana kwa chinyezi anachititsa ambiri polyurea. Kumene, poyamba pa zonse izo ntchito yomanga ndi ntchito kumaliza. Koma ubwino wa chuma ayesedwa ndi shipbuilding makampani, masitolo kukonza galimoto, mabungwe ang'onoang'ono utumiki umene zikugwira luso thandizo la nyumba zosiyanasiyana, milatho ndi akasinja. Palinso ubwino nkhaniyi monga insulator kuchokera. Kuti timvetse chuma ichi M'pofunikanso kukumbukira yankho la funso limeneli, polyurea - icho chiri. Izi koposa zonse, mofulumira atakhala polima, amene amathandiza chisindikizo ogwira ndi mphamvu. Ndiko kuti, ngati ndondomeko monga mwa lokutidwa wosanjikiza pamwamba kuwamaliza, ndiye milatho ozizira zitha kuiwala.

Pomaliza

Monga zipangizo zamakono zonse zamakono, polyurea patsogolo mwa njira ya kudzipatula mtengo kupikisana. Izi ndi nkhani mtengo, koma zotsatira zake ndi ofunika. Chinthu china n'chakuti ntchito payekha ayenera kugwiritsidwa ntchito pamanja kutsatira polyurea monga kugula zipangizo zodula kapena zapamwamba adzapanga kosathandiza ntchito njira imeneyi. Mosiyana, mu nkhani ya zochitika zikuluzikulu popanda wapadera kutchinjiriza napyliteley kuchita. N'zimene njira kupereka ❖ kuyanika yunifolomu, ndipo adzapulumutsa pa mtengo. Tiyeneranso adzanyamula kukumbukira kuti opanga polyurea osiyana, motero, ndipo ntchito za mtundu makamaka zingasiyane.