Pankhani ya zokongoletsera zomangamanga, mwala wachilengedwe umakondedwa chifukwa cha mtengo wake wokongoletsa komanso wokhazikika. Zofooka za Stone, kuphatikizapo pores ndi ming'alu, komabe zimalepheretsa kugwiritsidwa ntchito kwake kwakukulu ndi chitetezo. Chifukwa chake, ukadaulo wolumikizana ndi zomangamanga wakhala njira yayikulu yowonjezerera chitetezo komanso kugwiritsa ntchito bwino mwala. Kufunika kwa structural kugwirizana mwala zachilengedwe zidzakambidwa m'nkhani ino pamodzi ndi ntchito ndi ubwino wa epoxy utomoni zomatira mu zokongoletsera mwala. Tidzawunika zomwe zili, kugwiritsa ntchito ndi kusinthidwa kwa epoxy resin mumwala wouma wolendewera ndikuyembekezera chitukuko chake chamtsogolo pakukongoletsa kamangidwe. Kudziwa mozama zomwe zili mkatizi zitithandiza kugwiritsa ntchito bwino zomatira za epoxy resin kuti tipatse gawo lomanga njira zokongoletsa mwala zokongola kwambiri, zotetezeka komanso zokometsera zachilengedwe.
Kufunika kolumikizana ndi mwala wachilengedwe
Kukongola kwa mwala wachilengedwe kumatamandidwa kwambiri, chifukwa cha mawonekedwe ake osavuta komanso achilengedwe komanso mtundu wake, amapereka zokongoletsera zomangamanga mawonekedwe okongola komanso apadera. Kuchepa kwa mphamvu kwamwala wachilengedwe kumabwera chifukwa cha zolakwika zake zomwe zimachitika nthawi zonse, ngakhale, kuphatikiza pores, ming'alu, maenje, ndi zina zambiri. Kulumikizana kwamapangidwe kwakhala kofunikira kwambiri kutsimikizira kugwiritsa ntchito mwala mokwanira. Ukadaulo wolumikizana ndi zomangamanga sikuti umangopanga zolakwika za miyala, komanso amathetsa mavuto monga kusamata kokwanira komwe kungayambike chifukwa chogwiritsa ntchito matope a simenti, kotero kuti mwalawo ukhoza kumangirizidwa mwamphamvu ku magawo monga mafelemu achitsulo. Kuphatikizanso kopindulitsa pakugwiritsa ntchito kukongoletsa khoma lamiyala ndikumangirira kumapangidwe, makamaka pakumanga makoma a facade ndi makatani. Imakulitsa kukhulupirika ndi mawonekedwe a nyumbayo ndipo imathandizira luso la zomangamanga kuti lipite patsogolo.
Kugwiritsa ntchito zomatira za epoxy resin polumikizira mwala
Zomatira za epoxy resin zimagwiritsidwa ntchito kwambiri pakukongoletsa ndi kukonzanso mwala chifukwa chakuchita bwino kwambiri. Mapangidwe a maselo a epoxy resin amakhala ndi magulu ambiri, kuphatikiza magulu a epoxy ndi hydroxyl, omwe amamupatsa luso lomatira komanso luso losinthira zinthu. Epoxy resin's colloid shrinkage rate ndi yotsika pambuyo powonjezera wochiritsa, motero imatha kukhalabe yolimba, kukana nyengo, komanso bata. Kuphatikiza apo, utomoni wa epoxy sumapanganso zinthu zina panthawi yochiritsa, motero zimalepheretsa kuyipitsa kwa miyala yachiwiri. Choncho, ndi koyenera kumanga m'malo angapo, kuphatikizapo kunja, m'nyumba, ndi ntchito zina zosiyanasiyana.
Ubwino wa zomatira za epoxy resin
1. Mphamvu yolumikizana bwino kwambiri: magulu a epoxy, magulu a hydroxyl ndi magulu ena amatha kupanga mphamvu zolimba za intermolecular ndi zipangizo monga miyala ndi zitsulo;
2. Kuchepa kochepa: Kutsika kwa colloid panthawi yochiritsa ndi 2% ~ 3% yokha, ndipo chodzazacho chikhoza kuchepetsedwa;
3.Dimensional bata: Kapangidwe kake kamakhala kokhazikika pambuyo polumikizana, mawonekedwe ake ndiabwino, ndipo sikophweka kupunduka;
4.Kukana kwanyengo: Ikhoza kupirira mphamvu zachilengedwe monga mphepo, zivomezi, ndi kusintha kwa kutentha;
5.Kusinthasintha kwamphamvu: Ndizoyenera kumanga m'malo osiyanasiyana popanda kutentha kwakukulu;
6.Popanda kuipitsa: Zosungunulira zowononga sizimawuka panthawi yakuchiritsa kapena kuipitsa kulikonse komwe kumapangidwira mwala;
7. Zogwiritsidwa ntchito kwambiri: Zogulitsa mumitundu ingapo zitha kupangidwa potengera zosowa zamwala.
Zoyipa za zomatira za epoxy resin
1. Kuwonongeka kwakukulu: Utoto wa epoxy wosasinthika umachotsedwa mosavuta pambuyo polimba;
2.Nthawi yochepa yomanga: Zomatira za epoxy resin ziyenera kumalizidwa mkati mwa nthawi, zomwe sizikugwirizana ndi ntchito zovuta;
3.Nkhawa zachitetezo: Zinthu zina za epoxy resin zitha kupangitsa kusakhazikika; chifukwa chake, munthu ayenera kusamala kwambiri zachitetezo chachitetezo.
Ntchito ya epoxy resin zomatira mumwala wowuma wolendewera
Kuyambira ku zomatira za epoxy resin idakonzedwa bwino koyamba ku Germany Chemical Viwanda Company mu 1934, pang'onopang'ono yakhala ikugwiritsidwa ntchito kwambiri pantchito yomanga. Poyambirira poyang'ana pa zomangamanga zonyowa za simenti, njira yonyowayo imapangitsa "kusintha kwa pathological" pamiyala, motero idasinthika kukhala njira youma yopachikika. Cholimba komanso chokhazikika, zomatira za epoxy resin zomwe zimagwiritsidwa ntchito mu njira yowuma yolendewera zimatha kupanga mwala wosasunthika ndi matope a simenti, kuchepetsa kwambiri mavuto oyeretsa ndi kugwa chifukwa cha matope a simenti. Zotsatirazi zimasiyanitsa njira yopachika youma:
1. High unsembe khalidwe: Njira yolendewera youma imagwiritsa ntchito zigawo zachitsulo kuti zithandizire ndikupanga dongosolo lolimba;
2.Kuthamanga kwachangu: Njira yolendewera youma sifunikira matope a simenti ndipo imatha kumaliza mwachangu ndikumanga;
3.Kuthamanga kwamphamvu kwa mphepo ndi kukana zivomezi: M'nyumba zazitali, mawonekedwe owuma olendewera sangagwe chifukwa cha kugwedezeka kwa nyumba kapena kukakamiza kwa mphepo;
4.Kukonza kosavuta: Njira youma yolendewera ndi modularized, yomwe ndi yabwino kukonzanso pambuyo pake ndikusintha.
Kupanga ndi kusinthidwa kwa zomatira za epoxy resin
Zomatira za epoxy resin nthawi zambiri zimakhala ndi epoxy resin ndi machiritso. Ma diluent, fillers, toughening agents, ndi zina zotere amaphatikizidwanso kuti apititse patsogolo magwiridwe antchito ndikupanga zomatira zosinthidwa za epoxy resin kuti ziwonjezere kugwira ntchito kwake. Pakati pa zosintha zomwe zimagwiritsidwa ntchito nthawi zambiri ndi ma silane coupling agents, toughening agents, ndi zina zotero. Pogwiritsa ntchito njira zosinthira izi, kusinthasintha kwa colloid ndi kulimba kwake kungathe kukulitsidwa mokwanira kuti akwaniritse zofuna zambiri zokongoletsa miyala. Makamaka muzogwiritsa ntchito ngati makoma akunja ndi makoma a nsalu zotchinga, zomatira zosinthidwa za epoxy resin zimapereka ntchito yabwino pakukongoletsa mwala ndipo zimatha kupereka chithandizo chodalirika kwanthawi yayitali.
Kukula kwamtsogolo kwa zomatira za epoxy resin muzokongoletsa zomangamanga
Zomatira za epoxy resin zipereka chidwi kwambiri pazomwe zikuchitika m'tsogolomu pazokongoletsa zomangamanga pakumanga bwino, kukongoletsa bwino komanso kuteteza chilengedwe:
1. Chitetezo cha chilengedwe: kuchepetsa kugwiritsa ntchito mankhwala owopsa ndikukweza magwiridwe antchito a zomatira za epoxy poteteza chilengedwe;
2.Kusinthasintha: kupititsa patsogolo kusinthasintha ndi kuchepetsa brittleness kupyolera mu kusintha kwa maselo ndi kusintha;
3.Kuthandizira Kumanga: kupanga zinthu za epoxy resin zomwe ndizosavuta kugwiritsa ntchito komanso kuphweka ntchito yomanga;
4.Kulimbitsa mphamvu ya nyengo: kuyankha kusiyanasiyana kwakusintha kwanyengo ndikuwongolera kukana kwanyengo kwanthawi yayitali kwa zomatira za epoxy.
Kumangirira kwamwala kumadalira kwambiri zomatira za epoxy resin. Kuchita kwake kolumikizana bwino komanso kusinthasintha kwalimbikitsa chitukuko cha ukadaulo wopachika mwala, ndikuwongolera kukongola ndi zomangamanga zanyumba. Sayansi yazinthu idzatsegula mwayi wambiri wogwiritsa ntchito zomatira za epoxy resin pakukongoletsa mwala, kotero kupereka mayankho ochulukirapo omangira gawo lomanga.