Patinofunga nezvezvivakwa zvematombo, tinofungidzira chimwe chinhu chinomira pamuedzo wenguva, chichitsungirira mamiriro okunze kwemakumi emakore, kunyange mazana emakore. Zvakadaro, kusimba kwedombo kunotsamira zvakanyanya pane chinonamira chinoribata pamwe chete pasinei nekusimba kwaro. Kazhinji sarudzo yakasarudzwa yebwe rekubatanidza ndeye epoxy resin, inosanozivikanwa nokuda kwesimba rayo guru rokunamira. Zvakadaro, zvinhu zvezvakatipoteredza, kusiyanisa kwetembiricha, uye mwenje weUV zvese zvinogona kukonzera kunyange zvinhu zvakaomarara kukwegura uye kupera simba. Tichifunga nezvemamiriro ekuchembera aya, saka, epoxy resin inobata sei mukushandiswa kwematombo? Iri bepa rinoferefeta chinongedzo chinonakidza pakati peepoxy resin nekuchembera, saka kubudisa pachena simba chairo reinamira iyi sezvo wachi inoramba ichimhanya.
Epoxy Resin uye Kuchembera: The Basics
Epoxy resin inoshandiswa zvakanyanya mukubatanidza matombo nekuda kwesimba rayo rekubatana, makemikari kuramba, uye kusimba. Epoxy resin inogadzira hukama hwakasimba, hunogara kwenguva refu nekubatanidzwa kwekemikari nedombo kusiyana neakajairwa simende-based adhesives. Epoxy resin iri kuchembera, zvakadaro, sezvakangoita chero chinhu. Chimiro chayo chemakemikari chinoshandurwa zvishoma nezvishoma nezvinhu zvinosanganisira kuratidzwa kweUV, shanduko yekushisa, uye hunyoro; saka, kuchinja kwemavara, kutsemuka, uye kupera simba nekufamba kwenguva zvinogona kuitika.
Kuchembera mu epoxy resin kunowanzoitika nenzira ye oxidation uye kuora kwepolymer. UV kuratidzwa kunoshandura chimiro chemolecular ye resin, iyo inokonzera oxidation; kusiyana kwekushisa kunokonzera kuti resin iwedzere uye kuderera, saka inoderedza zvisungo mukati. Kufanotaura kusimba kwenguva refu kwezvivakwa zvematombo zvakasungwa ne epoxy resin zvinoenderana nekuziva kuti inokura sei.
Zvinhu Zvikuru Zvinokurudzira Epoxy Resin Kuchembera
1.UV Exposure
Kana yakafumurwa kune UV mwenje, epoxy resin inowanzoita yero uye kushatisa kwepasi. Nekuti UV mwaranzi inopwanya macheni epolymer eresin, inova isina brittle uye inoda kupaza. Kunyangwe ivo vachingodzikira, kwete kumira zvachose, mhedzisiro yekuchembera kweUV, UV stabilizers inogona kuwedzerwa kune epoxy formulations.
2.Temperature Fluctuations
Kuchinja kwetembiricha kunoitawo basa guru mukukwegura. Heated Epoxy inowedzera; yakatonhorera Epoxy zvibvumirano. Micro-kutsemuka muresin kunobva mukunetesa chisungo chinokonzerwa nekudzokororwa kutenderera kwekuwedzera uye kuderera. Nepo tembiricha yakaderera inogona kuita kuti resin iite brittle, saka ichidzikisa kushanduka kwayo, tembiricha yepamusoro inogona kukurumidzira kuparara kwepolymer.
3.unyoro uye humidity
Kunyorova kunokanganisawo kuchembera kwe epoxy. Mune mamwe magadzirirwo, hunyoro hurefu hunogona kukonzera kunyura kwemvura, saka kukanganisa chimiro chemakemikari. Mamorekuru emvura anogona kugadzira madiki madiki pakati peepoxy nedombo, pamwe zvichikonzera delamination nekufamba kwenguva. Mamwe epoxy resins, zvakadaro, akagadzirirwa kuti arambe achidzivirira mvura, saka achipa hupenyu hurefu huri nani munzvimbo ine hunyoro.
4.Chemical Exposure
Mune zvimwe zviitiko, nzvimbo dzematombo dzakasungwa dzinoratidzwa kumakemikari, kungave kubva kune vanochenesa kana zvinosvibisa zvakatipoteredza. Aya makomisheni anogona kukanganisa iyo epoxy resin, saka ichideredza simba rayo rechisungo. Asidhi kana yakakosha mhinduro inogona kukurumidzira kuparara kweresin, nekudaro mumamiriro ezvinhu apo kuratidzwa kwekemikari kungangove, zvinokurudzirwa kushandisa chaiwo epoxy formulations nekuvandudzwa kwemakemikari kuramba.
Kuedza: Kuedza Kuchembera Kuramba kweEpoxy Resin muDombo Bonding
Miedzo yakasiyana-siyana yeepoxy-yakasungwa matombo ematombo pasi pemamiriro ezvinhu anoteedzera kwenguva refu UV mwenje, kushanduka kwetembiricha, uye unyoro zvakabatsira kuongorora epoxy kuramba kuchembera. Izvi ndizvo zvinonyanya kucherechedzwa:
1. Kusimba kwechisungo chekutanga
Epoxy resin yakaratidza kunamatira kukuru kumatombo anosanganisira granite, marble, uye limestone mumiyedzo yekutanga yekubatanidza. Ichitaridza hukuru hwekunamira hunhu hweepoxy, resin yakagadzira chisungo chakasimba chepakutanga chaibata zvakanaka munzvimbo yakaoma, yakagadzikana.
2.UV Exposure Effects
Chiratidzo chekuchembera, masampuli akaiswa kune inoenderera mberi UV mwenje kwemavhiki akati wandei akatanga kuratidza kushanduka kwepasi. Elasticity yakadzikira sezvo pamusoro pe resin yaiwedzera brittle. Kuratidzwa kweUV kunobata zvakajeka kusimba kwenguva refu kwedombo rakasungirirwa epoxy; apo matombo airamba akasungwa, chisungo chacho chakawedzera kuparara pasi pekuwedzera kunetseka.
3.Temperature Cycling
Kutevedzera shanduko dzemwaka, masampuli aipiswa uye akatonhodzwa. Mushure mekutenderera kwakawanda, iyo epoxy yakaratidza madiki-akatsemuka zvakanyanya kubva kune resin uye kuwedzera kwematombo uye kudonha. Mukushandiswa kwekunze, uko kushanduka kwekushisa kwakajairwa, mitswe iyi inogona kuvaka nekufamba kwenguva uye pakupedzisira kukanganisa kutendeseka kwechisungo.
4.Humidity uye Water Exposure
Matombo epoxy-bonded anoratidza kumwe kupera simba mukunyorova kwepamusoro uye bvunzo dzekunyudza mumvura. Kunyangwe epoxy inowanzo dzivirira mvura, kuwedzera mwando kuratidzwa kwakakonzera kushoma delamination-kunyanya kumucheto. Izvi zvakawanikwa zvinoratidza kuti kunyangwe epoxy inogona kushivirira hunyoro kune imwe nhanho, nekufamba kwenguva kugara kuratidzwa kunyoro kunogona kuderedza kushanda kwayo.
5.Chemical Resistance
Kuyedza masampula mune ese ekutanga uye acidic mhinduro kwakaratidza kuti makemikari ane hutsinye akakurumidza kukurumidzira kuchembera mu epoxy. Iyo resin yakashanduka ikatanga kupera simba, zvichiratidza kuti kunyangwe epoxy yakasimba, inogona kuparara nekukurumidza mune mamwe makemikari anogara achishandiswa muindasitiri kana kuchenesa nharaunda.
Sei Epoxy Resin Inofananidzwa Nemamwe Anonamatira
Zvichienzaniswa nezvinonamira zvechinyakare, epoxy resin inowanzopa epamusoro pekutanga kusimba simba uye kusimba. Panzvimbo dzine hunyoro hwepamusoro, semuenzaniso, simende-inonamira haina kukwana sezvo isina mvura inodzivirira epoxy. Sezvineiwo, zvinonamira zvesilicone zvinopa kuchinjika asi zvichishaya simba rekutanga uye kutakura mutoro we epoxy.
Mamwe maepoxies anogadzirwa ane UV stabilizer uye mamwe maepoxies anoomesa, ayo anowedzera kusimba, kuitira kushandiswa uko kuchembera kunopesana kwakakosha. Kunyangwe magadzirirwo aya achiwedzera hupenyu hweiyo epoxy bond, kufunga kwezvakatipoteredza uye maitiro ekugadzirisa zvichine kukosha kukuru kwekuita kwakanyanya.
Kunyangwe epoxy resin yakasimba uye inochinjika inonamira, kuramba kwayo kuchembera mukushandiswa kwematombo kunoenderana nekuratidzwa kune zvakatipoteredza zvinhu zvinosanganisira UV mwenje, shanduko yekushisa, uye unyoro. Kushandisa UV-yakagadzikana epoxy uye kuita zvinodzivirira kuchabatsira maapplication ari kunze kana akanyanya-kushushikana nharaunda kugara kwenguva refu. Zvakadaro, epoxy resin mazera uye haina kudzivirirwa kunyangwe nematanho aya. Kunzwisisa kuti sei uye nei epoxy mazera anobatsira vashandisi kuita sarudzo kuvimbisa hupenyu hwezvivakwa zvematombo. Epoxy-yakasungwa matombo ekuvaka anogona zvechokwadi kutsungirira nguva nekutarisira kwakaringana uye nekugadzirisa kwakakodzera.