Kusiyana pakati pa utoto wa Epoxy ndi Polyurethane

Utoto wa Pansi wa Epoxy vs. Utoto wa Pansi wa Polyurethane: Kusanthula Mozama kwa Kusiyana Kwawo ndi Kusankha Woyenera

Kuyenda m'mafakitale amakono, m'masitolo akuluakulu, ndi m'magalaji apansi panthaka, nthawi zambiri sitimaponda simenti wamba koma pa utoto wapadera wosalala, wonyezimira, komanso wamitundu yosiyanasiyana. Izi ndi zotsatira za utoto wa pansi. Pakati pa zosankha zambiri,utoto wa epoxy ndi polyurethane pansikulamulira msika. Nkhaniyi ifufuza mosamala kusiyana pakati pa ziwirizi pankhani ya mtundu wawo, magwiridwe antchito awo, ndi zochitika zomwe zingagwiritsidwe ntchito.

1. Kusiyana Kwakukulu: Kumvetsetsa Mtundu Wawo wa Mankhwala
Kuti tisiyanitse bwino zinthu ziwirizi, choyamba tiyenera kufufuza kapangidwe kake ka mankhwala.

Utoto wa Pansi wa Epoxy:
Utoto wa pansi wa epoxy umapangidwa makamaka ndi epoxy resin ndi chotsukira. Zinthu ziwirizi zikasakanizidwa, njira ya mankhwala yotchedwa cross-linking imachitika. Njira imeneyi ili ngati kulukira maunyolo ang'onoang'ono ambirimbiri a molekyulu mwamphamvu mu netiweki yolimba ya magawo atatu. Filimu yopaka utoto yomwe imachokera imadziwika ndi kuuma kwake kwakukulu, kumamatira mwamphamvu, komanso kukana kwambiri mankhwala.

Taganizirani za filimu yopaka utoto pansi ya epoxy ngati chida cholemera chomwe asilikali akale ankavala. Chida ichi ndi champhamvu kwambiri, chimalimbana bwino ndi kusweka ndi mankhwala owononga, chimateteza nthaka mwamphamvu. Komabe, vuto lake ndi lofanana ndi la chida cholemera: chimakhala cholimba kwambiri ndipo sichisinthasintha. Pamene nthaka yapansi imasweka chifukwa cha kusinthasintha kwa kutentha kapena kukhazikika pang'ono, "chida cholemera" ichi sichingathe kufutukuka kapena kuchepetsedwa nacho, ndipo chikhoza kusweka nacho.

Utoto wa pansi wa polyurethane:
Kapangidwe ka utoto wa pansi pa polyurethane ndi kosiyana, makamaka kamene kali ndi isocyanate ndi resin. Kachitidwe kake kamapangitsa kuti utoto ukhale ndi mawonekedwe apadera: umakhala wolimba mokwanira komanso umakhala wotanuka komanso wolimba. Opanga amatha kusintha kapangidwe kake, monga kukanda mtanda, kuti alamulire "kufewa" kwake ndi "kuuma kwake."

Motero, utoto wa pansi wa polyurethane uli ngati vest yapamwamba kwambiri, yosaboola. Mosiyana ndi "zida zolemera" za epoxy, siwolimba chabe; m'malo mwake, umaphatikiza kulimba ndi kusinthasintha. Ukakhudzidwa ndi chinthu cholemera, umayamwa mphamvu kudzera mu kusintha kwa micro-deformation, kuteteza ming'alu. Umasinthasinthanso bwino ku kusintha kochepa komwe kumachitika pansi.

Mwachidule, kusiyana kwakukulu ndi uku:pansi pa epoxyndi dongosolo "lolimba", lolimba komanso losalimba ngati galasi;pansi pa polyurethanendi dongosolo "lolimba", lolimba komanso lolimba ngati rabala.

2. Kuyerekeza Magwiridwe Abwino: Chilichonse Chili ndi Ubwino Wake

Kutengera mitundu yosiyanasiyana ya mankhwala yomwe yatchulidwa pamwambapa, zonse ziwiri zikuwonetsa ubwino wawo pakugwira ntchito kwenikweni.

1. Katundu wa Makina
Kulimba ndi Kukana Kutupa: Mu mayeso achikhalidwe a kuuma, pansi pa epoxy yokonzedwa bwino nthawi zambiri imakhala yabwino kwambiri. Kukana kwake kutopa kwambiri kumatsimikizira kukhazikika kwake m'nyumba zosungiramo zinthu zokhala ndi ma forklift ndi ma trailer nthawi zambiri. Komabe, kukana kutopa kwa pansi pa polyurethane sikuyenera kunyalanyazidwa, makamaka pankhani ya zinthu zakuthwa (monga nsapato zazitali ndi mawilo achitsulo). Malo ake otanuka amagwira ntchito ngati chotetezera, zomwe zimapangitsa kuti pakhale kukana kukanda bwino.
Kukana Kukhudzidwa: Ichi ndiye chizindikiro chodziwika kwambiri. Chida cholemera chomwe chimagwetsedwa kuchokera kutalika kupita pansi pa epoxy chingapangitse kuti utoto ukhale wopindika mosavuta kapena kuswa filimuyo. Pansi pa polyurethane, kugwedezekako kumafalikira bwino ndikuyamwa, ndipo pansi kumatha kubwereranso, kukhalabe momwemo. Chifukwa chake, polyurethane ndi chisankho chotetezeka m'malo monga ma eyapoti ndi malo operekera zinthu.

2. Kukana Nyengo
Kukana kwa UV: Iyi ndi vuto lodziwika bwino la pansi ya epoxy. Ngati igwiritsidwa ntchito panja kapena m'chipinda chosungira dzuwa, siikhalitsa nthawi yayitali pamwamba pake pasanayambe kuphulika, kufota, ndikutaya kuwala kwake. Kapangidwe kake ka mankhwala kamaipangitsa kuti isagonjetsedwe ndi UV. Pansi ya polyurethane (makamaka aliphatic polyurethane) imakhala yolimba mwachilengedwe ndipo imapereka kukhazikika kwa utoto kwa nthawi yayitali, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pabwalo lamasewera lakunja, madenga a padenga, ndi malo omangira nyumba.
Kukana Kutentha: Malire a kukana kutentha kwa pansi pa epoxy nthawi zambiri amakhala pafupifupi 80°C; pamwamba pa kutentha kumeneku, nthawi zambiri amafewa. Pansi pa polyurethane imakhala ndi kulekerera kutentha kwakukulu, makamaka m'malo otentha pang'ono, kusunga kusinthasintha kwake komanso kukana kusweka, zomwe zimapangitsa kuti ikhale yoyenera pansi posungiramo zinthu zozizira.

3. Kukana Mankhwala
Utoto wa epoxy wokhuthala kwambiri umapereka ubwino waukulu polimbana ndi dzimbiri kuchokera ku mankhwala monga ma acid, alkali, mchere, ndi zosungunulira, zomwe zimawapangitsa kukhala "katswiri wotsutsana ndi dzimbiri." Amagwiritsidwa ntchito kwambiri m'malo ovuta monga ma labotale a mankhwala, mafakitale opangira ma electroplating, ndi mafakitale opanga mankhwala. Pansi pa polyurethane imaperekanso kukana kwabwino kwa mankhwala, komwe kumapirira mosavuta mafuta a tsiku ndi tsiku, sopo, ndi mankhwala ofatsa. Komabe, kukana kwake ku zinthu zambiri zowononga nthawi zambiri kumakhala kochepa poyerekeza ndi pansi pa epoxy wapamwamba.

4. Chidziwitso cha Ogwiritsa Ntchito
Kukana Kumva ndi Kutsetsereka: Kutanuka kwa pansi pa polyurethane kumapereka kumveka bwino, kumachepetsa kutopa chifukwa cha ntchito yayitali. Kudzera mu kukonza, kumatha kupangidwa kukhala malo osatsetsereka nthawi zonse, kuonetsetsa kuti ndi otetezeka ngakhale m'malo ozizira (monga malo ochapira chakudya ndi malo otsetsereka). Pansi pa epoxy ndi lolimba, koma malo ake osalala ndi osavuta kuyeretsa bwino.
Mulingo wa Ukhondo: Pansi pa epoxy zonse ziwiri zimapereka chitetezo chopanda fumbi, zomwe zimakwaniritsa zofunikira zaukhondo. Komabe, pansi pa polyurethane ili ndi malo okhuthala komanso osalala, omwe amagwira ntchito ngati chophimba choteteza, zomwe zimapangitsa kuti zikhale zovuta kuti madontho (monga inki ndi madzi) alowe, zomwe zimapangitsa kuti kuyeretsa ndi kukonza tsiku ndi tsiku kukhale kosavuta. Khalidweli limapangitsa kuti lizifunidwa kwambiri m'mafakitale omwe ali ndi zofunikira kwambiri paukhondo, monga makampani opanga zakudya ndi zakumwa, komanso ma electronic integrated circuits.

3. Kapangidwe ndi Maonekedwe: Tsatanetsatane Ndi Wofunika
Masitepe Omanga:
Zonsezi zimafuna mphamvu, kusalala, komanso kuuma kwa pansi. Pansi pa epoxy ndi posankha kwambiri kutentha ndi chinyezi panthawi yomanga. Kutentha kochepa kwambiri kapena chinyezi chambiri kumatha kusokoneza njira yokonzera, zomwe zimapangitsa kuti pakhale mavuto monga filimu yoyera, kumamatira, komanso kutha kwa ming'alu. Pansi pa polyurethane imapereka kusinthasintha kwakukulu komanso kupirira kutentha ndi chinyezi.
Zotsatira Zowoneka:
Pansi pa epoxy pakhoza kupanga kapangidwe kolemera komanso kolemera kokhala ndi mawonekedwe ofanana ndi galasi komanso mawonekedwe amphamvu a mafakitale. Pansi pa polyurethane nthawi zambiri pamafunika utoto wochepa, zomwe zimapangitsa kuti kapangidwe kake kakhale kofewa, kofanana bwino, komanso mtundu wofewa komanso wokhalitsa. Pansi pa polyurethane terrazzo yomwe yatchuka posachedwapa imatha kupanga mawonekedwe okongola kwambiri ofanana ndi miyala yachilengedwe, ndipo imagwiritsidwa ntchito m'masitolo akuluakulu, m'malo owonetsera zinthu, ndi m'malo ena, kuphatikiza kukongola ndi magwiridwe antchito.

4. Kodi Mungasankhe Bwanji?
Ntchito zomwe zimagwiritsidwa ntchito popanga utoto wa epoxy pansi ndi mongaMalo osiyanasiyana a mafakitale amkati, monga mafakitale olemera, malo okonzera magalimoto, malo osungiramo katundu, malo oimika magalimoto pansi pa nthaka, ndi mafakitale okonzera zinthu zamagetsi. Malo amenewa amatetezedwa ku kuwala kwa UV ndipo amafunika kupanikizika kwambiri, kukwawa, komanso kukana mankhwala.

Ntchito zomwe zimagwiritsidwa ntchito popanga utoto wa pansi pa polyurethane ndi mongamalo akunja (malo osewerera, malo otsetsereka), malo amkati omwe kutentha kumasinthasintha (kusungirako kozizira), malo okhala ndi ukhondo wambiri komanso zofunikira kuti zisaterereke (mafakitale azakudya, mafakitale opanga mankhwala, makhitchini azipatala, makonde a masukulu), ndi malo omwe amafunika kugwedezeka ndi kuchepetsa phokoso (malo ochitira masewera olimbitsa thupi, malaibulale).

Zokhudza Mtengo
Kutengera mtengo wa zipangizo, pansi pa polyurethane nthawi zambiri imakhala yokwera kuposa pansi pa epoxy. Komabe, popanga chisankho, ndikofunikira kuganizira za "ndalama zonse zogulira moyo". Pa ntchito zakunja, kusankha pansi pa epoxy kuti musunge ndalama kungayambitse kusweka ndi kusweka m'chaka chimodzi kapena ziwiri zokha, zomwe zimapangitsa kuti pakhale kukonzanso, zomwe zimapangitsa kuti ndalama zonse zikhale zokwera. Mosiyana ndi zimenezi, m'malo okhazikika amakampani amkati, pansi pa epoxy mosakayikira ndiye njira yotsika mtengo kwambiri.

5. Kuphatikiza Mwanzeru: Dongosolo Lophatikizana Lomwe Limathandizira Mphamvu ndi Kulipira Zofooka
Njira yodziwika kwambiri pakugwiritsa ntchito zinthu zenizeni ndi"Epoxy base + polyurethane topcoat"dongosolo lophatikizana. Pansi pa epoxy ndi gawo loyambira, pogwiritsa ntchito mphamvu zake, kumatira, komanso mtengo wotsika poyika maziko; polyurethane imagwiritsidwa ntchito ngati topcoat, pogwiritsa ntchito kukana nyengo, kukana kuvala, komanso mawonekedwe okongola ngati gawo lakunja loteteza. Njira yophatikizana iyi nthawi zambiri imabweretsa zotsatira zabwino kwambiri zomwe sizingatheke ndi chinthu chimodzi.

Chidule
Ngati mukufuna kuteteza pansi yokhazikika, yopanda UV mkati mwa mafakitale yokhala ndi mphamvu zambiri komanso yolimbana ndi mankhwala, pansi pa epoxy ndi chisankho chodalirika komanso chotsika mtengo.
Ngati pansi panu padzakumana ndi nyengo, kusinthasintha kwa kutentha, kapena ngati mukufuna kusinthasintha kwakukulu, kukana kutsetsereka, komanso ukhondo, pansi pa polyurethane ndi njira yabwino kwambiri yogwiritsira ntchito nthawi yayitali.