(I) Ingcamango yeepoxy resin
I-epoxy resin ibhekisela kwi-polymer chain structure iqulethe amaqela amabini okanye ngaphezulu epoxy kwiikhompawundi ze-polymer, yeye-resin thermosetting, i-resin emele i-bisphenol A uhlobo lwe-epoxy resin.
(II) Iimpawu ze-epoxy resins (ezidla ngokubizwa ngokuba yi-bisphenol A uhlobo lwe-epoxy resins)
1. Ixabiso lesicelo se-epoxy resin nganye liphantsi kakhulu, kufuneka lisetyenziswe ngokubambisana ne-arhente yokunyanga ukuba ibe nexabiso elisebenzayo.
2. Amandla aphezulu okudibanisa: amandla okudibanisa i-epoxy resin adhesive iphambili kwi-adhesives synthetic.
3. Ukunyanga ukushwabana kuncinci, kwi-adhesive epoxy resin adhesive shrinkage yeyona incinci, ekwayi-epoxy resin adhesive adhesive adhesive adhesive high one of the reasons.
4. Ukumelana neekhemikhali ezilungileyo: iqela le-ether, i-benzene ring kunye neqela le-aliphatic hydroxyl kwinkqubo yonyango ayikhukuliswa lula yi-asidi kunye ne-alkali. Emanzini olwandle, i-petroleum, i-kerosene, i-10% H2SO4, i-10% HCl, i-10% HAc, i-10% NH3, i-10% ye-H3PO4 kunye ne-30% ye-Na2CO3 ingasetyenziselwa iminyaka emibini; kunye ne-50% ye-H2SO4 kunye ne-10% ye-HNO3 yokucwiliswa kwiqondo lokushisa lokushisa kwisiqingatha sonyaka; I-10% ye-NaOH (100 ℃) yokuntywiliselwa kwinyanga enye, ukusebenza kuhlala kungatshintshi.
5. I-insulation yombane egqwesileyo: i-voltage yokuphuka ye-epoxy resin ingaba mkhulu kune-35kv / mm 6. Ukusebenza kakuhle kwenkqubo, ukuzinza kobungakanani bemveliso, ukuchasana okulungileyo kunye nokufunxa kwamanzi aphantsi. Iinzuzo ze-bisphenol A-type epoxy resin zilungile, kodwa zikwanazo nezingeloncedo: ①. Ukusebenza kwe-viscosity, ebonakala ngathi yinto engathandekiyo kulwakhiwo ②. Imathiriyeli enyangisiweyo i-brittle, ubude buncinci. ③. Amandla amaxolo aphantsi. ④. Ukuchasana kakubi kumatshini kunye ne-thermal shock.
(III) ukusetyenziswa kunye nophuhlisoepoxy resin
1. Imbali yophuhliso lwe-epoxy resin: i-epoxy resin yasetyenziswa kwi-patent yaseSwitzerland yi-P.Castam ngo-1938, i-adhesive epoxy yokuqala yaphuhliswa nguCiba ngo-1946, kwaye i-epoxy coating yaveliswa yi-SOCreentee yase-USA ngo-1949, kunye Ukuveliswa kwemveliso ye-epoxy resin kwaqalwa ngo-1958.
2. Ukusetyenziswa kwe-epoxy resin: ① Umzi-mveliso wokugquma: i-epoxy resin kumzi-mveliso wokugquma ifuna elona xabiso likhulu lokwaleka osekwe emanzini, umgubo wokugquma kunye nokwaleka okuqinileyo okuphakamileyo zisetyenziswa kakhulu. Ingasetyenziswa ngokubanzi kwizikhongozeli zemibhobho, iimoto, iinqanawa, i-aerospace, i-electronics, iithoyi, ubugcisa kunye namanye amashishini. ② Ishishini lombane kunye nele-elektroniki: i-epoxy resin encamathelayo inokusetyenziselwa izinto zokugquma umbane, ezifana nezilungisi, iziguquli, ukutywina imbiza; ukutywinwa kunye nokukhuselwa kwamalungu e-elektroniki; iimveliso ze-electromechanical, ukugquma kunye nokudibanisa; ukutywinwa kunye nokudibanisa iibhetri; capacitors, resistors, inductors, umphezulu wengubo. ③ Ubucwebe begolide, ubugcisa, imveliso yezemidlalo: ingasetyenziselwa imiqondiso, ubucwebe, iimpawu zorhwebo, ihardware, iirakethi, iintambo zokuloba, izinto zemidlalo, ubugcisa kunye nezinye iimveliso. ④ Imboni ye-Optoelectronic: ingasetyenziselwa i-encapsulation, ukuzaliswa kunye nokudibanisa ii-diode ezikhupha ukukhanya (i-LED), iityhubhu zedijithali, iityhubhu ze-pixel, iziboniso ze-elektroniki, ukukhanya kwe-LED kunye nezinye iimveliso. ⑤Ishishini lokwakha: liya kusetyenziswa ngokubanzi kwindlela, ibhulorho, umgangatho, ulwakhiwo lwentsimbi, ulwakhiwo, ukwambathisa eludongeni, idama, ulwakhiwo lobunjineli, ukulungiswa kwezinto zenkcubeko kunye namanye amashishini. ⑥ Izinto zokuncamathelisa, izitywini kunye neendawo ezidityanisiweyo: ezinje ngeencakuba zeijini yomoya, imisebenzi yezandla, iiseramikhi, iglasi kunye nolunye uhlobo lwendibaniselwano phakathi kwezinto, indibaniselwano yeshiti yekhabhoni, ukutywinwa kwemathiriyeli ye-microelectronic njalo njalo.
(IV) Iimpawu zei-epoxy resin adhesive
1. i-epoxy resin encamathelayo isekelwe kwiimpawu ze-epoxy resin zokuphinda zisetyenziswe okanye ukuguqulwa, ukuze iiparameters zayo zokusebenza zihambelane neemfuno ezithile, ngokuqhelekileyo i-epoxy resin adhesive nayo ifuna ukuba ne-agent ephilisayo ukuze isetyenziswe, kwaye kufuneka ibe. ixutywe ngokulinganayo ukuze unyangeke ngokupheleleyo, iglu ngokubanzi epoxy resin encamathelayo eyaziwa ngokuba yiglu A okanye eyona arhente iphambili, iarhente yokunyanga eyaziwa ngokuba yiglu B okanye ukunyanga. i-agent (i-hardener).
2. ukubonakalisa iimpawu eziphambili ze-epoxy resin adhesive ngaphambi kokunyanga zi: umbala, i-viscosity, ubunzima obuthile, umlinganiselo, ixesha le-gel, ixesha elikhoyo, ixesha lokunyanga, i-thixotropy (i-stop flow), ukuqina, ukuxinwa kwendawo kunye nokunye. I-Viscosity (i-Viscosity): ukuchasana kwangaphakathi kwe-frictional ye-colloid ekuhambeni, ixabiso layo lichongwa luhlobo lwezinto, ubushushu, ukugxila kunye nezinye izinto.
Ixesha leGel: ukunyangwa kweglue yinkqubo yokuguqulwa ukusuka kulwelo ukuya ekuqinisweni, ukususela ekuqaleni kokusabela kweglu ukuya kwimeko ebalulekileyo yejeli idla ixesha eliqinileyo kwixesha lejeli, elichongwa ngumlinganiselo wokuxuba we-epoxy resin. iglu, ubushushu kunye nezinye izinto.
Thixotropy: Olu phawu lubhekiselele kwi-colloid echukunyiswe ngamandla angaphandle (ukungcangcazela, ukuvuselela, ukungcangcazela, amaza e-ultrasonic, njl. Ukuhambelana kwesiganeko.
Ukuqina: ibhekisela ekuchaseni izinto eziphathekayo kumandla angaphandle afana ne-embossing kunye nokukrwela. Ngokweendlela zovavanyo ezahlukeneyo Ukuqina kweShore (Shore), Brinell (Brinell) hardness, Rockwell (Rockwell) hardness, Mohs (Mohs) ukuqina, Barcol (Barcol) ubulukhuni, Vickers (Vichers) ubulukhuni njalo njalo. Ixabiso lobunzima kunye nohlobo lokuvavanya ubulukhuni olunxulumene nomvavanyi wobulukhuni obusetyenziswa ngokuqhelekileyo, isakhiwo somvavanyi wobulukhuni be-Shore silula, silungele ukuhlolwa kwemveliso, Umhloli wobulukhuni be-Shore unokwahlulwa ube ngu-A uhlobo, uhlobo lwe-C, uhlobo lwe-D, uhlobo lwe-A lokulinganisa i-soft. i-colloid, i-C kunye no-D-uhlobo lomlinganiselo we-semi-hard kunye ne-colloid eqinile.
Uxinzelelo lwangaphezulu: Umtsalane weemolekyuli ngaphakathi kolwelo ukuze iialekyuli eziphezu komhlaba amandla angaphakathi, lo mandla wenza ulwelo kangangoko kunokwenzeka ukunciphisa indawo yawo yomhlaba kunye nokwakheka kokuhambelana nomphezulu wamandla, owaziwa ngokuba umphezulu woxinzelelo. Okanye ukutsalana phakathi kweendawo ezimbini ezijongeneyo zomphezulu wolwelo ngobude beyunithi, kukubonakalisa amandla emolekyuli. Iyunithi yoxinzelelo lomphezulu yi-N/m. Ubungakanani boxinzelelo lomphezulu bunxulumene nendalo, ubunyulu kunye nobushushu bolwelo.
3. ebonisa iimpawu zei-epoxy resin adhesiveemva kokunyanga ezona mpawu ziphambili zezi: ukuxhathisa, amandla ombane, ukufunxwa kwamanzi, amandla acinezelayo, ukomelela (ukuqina), ukomelela kokucheba, ukomelela kwexolo, amandla empembelelo, ubushushu bokutshintsha kobushushu, ubushushu beglasi yokutshintsha, uxinzelelo lwangaphakathi, ukunganyangeki kweekhemikhali, ukwandiswa, ukushwabana komlinganiso. , conductivity thermal, conductivity zombane, weathering, ukumelana ukuguga, njalo njalo.
Ukuchasa: Chaza iimpawu zokumelana nezinto ngokuqhelekileyo kunye nokumelana nomphezulu okanye ukumelana nomthamo. Ukumelana nomphezulu ngumgangatho ofanayo phakathi kwee-electrode ezimbini ezilinganisa ixabiso lokumelana, iyunithi yi-Ω. Ubume be-electrode kunye nexabiso lokumelana lingabalwa ngokudibanisa i-resistivity yomhlaba kwindawo nganye yeyunithi. Ukuchasana nomthamo, okwabizwa ngokuba yi-volume resistivity, i-coefficient yokumelana nomthamo, ibhekiselele kwixabiso lokumelana nobukhulu bezinto eziphathekayo, luphawu olubalulekileyo lokubonisa iimpawu zombane ze-dielectric okanye izinto zokugquma. Isalathiso esibalulekileyo sokubonisa iimpawu zombane ze-dielectric okanye izinto zokukhusela. I-1cm2 ukuxhathisa kwe-dielectric ukuvuza kwangoku, iyunithi yi-Ω-m okanye Ω-cm. Ubukhulu be-resistiveivity, ngcono iimpawu zokugquma.
Ubungqina bombane: ekwaziwa njengamandla ombane wokuxhathisa (amandla okufakwa kwe-insulation), okukhona uphezulu amandla ombane ongeziweyo kwiziphelo zecolloid, kokukhona intlawulo engaphakathi kwesixhobo iphantsi kwamandla ombane, kokukhona kunokwenzeka ukwenza i-ioni yokungqubana, okukhokelela ekubeni ukuqhekeka kwe-colloid. Yenza ukuphuka kwe-insulator yeyona ndlela iphantsi yombane ibizwa ngokuba yinto yombane wokuphuka. Yenza i-1 mm engqindilili yokuqhekeka kwemathiriyeli yokugquma, kufuneka udibanise i-voltage kilovolts ebizwa ngokuba yi-insulating material insulation ukumelana namandla ombane, ekubhekiswa kuwo njenge-voltage yokumelana, iyunithi yile: Kv/mm. insulating material insulation kunye nobushushu banobudlelwane obusondeleyo. Ukuphakama kweqondo lokushisa, kubi kakhulu ukusebenza kwe-insulation ye-insulating material. Ukuze kuqinisekiswe amandla okugquma, into nganye yokugquma inobushushu obuphezulu obuvumelekileyo obuvumelekileyo, kulo bushushu bungezantsi, bunokusetyenziswa ngokukhuselekileyo ixesha elide, ngaphezu kolu bushushu luya kuguga ngokukhawuleza.
Ukufunxwa kwamanzi: Ngumlinganiselo wendlela into efunxa ngayo amanzi. Ibhekisa kunyuko lwepesenti yobunzima bento entywiliselwa emanzini kangangexesha elithile kubushushu obuthile.
Tensile strength: Amandla e-tensile lolona xinzelelo luphezulu xa ijeli isoluliwe ukuba iqhawuke. Ikwabizwa ngokuba yi-tensile force, amandla okuqina, amandla okuqina, amandla okuqina. Iyunithi yiMPa.
Amandla okucheba: ekwaziwa ngokuba namandla okucheba, ibhekisa kwindawo yokudibanisa iyunithi inokumelana nomthwalo omkhulu ohambelana nendawo yokudibanisa, iyunithi esetyenziswa ngokuqhelekileyo yeMPa.
Amandla e-Peel: ekwaziwa ngokuba namandla e-peel, ngumthwalo omkhulu womonakalo kwiyunithi yobubanzi obunokumelana, ngumlinganiselo womgca womthamo wamandla, iyunithi yi-kN / m.
Ukwandisa: ibhekisela kwi-colloid kwi-tensile force phantsi kwesenzo sobude bokunyuka kubude bokuqala bepesenti.
Ubushushu bokutshintsha ubushushu: ibhekisa kumlinganiselo wokuxhathisa ubushushu bezinto eziphilisayo, ngumzekelo wezinto eziphilisayo ontywiliselwe kuhlobo lwesiphakathi sokudlulisa ubushushu be-isothermal esilungele ukuhanjiswa kobushushu, kumthwalo ojingayo wokugoba wohlobo lomqadi oluxhaswa ngokulula, ukulinganisa umfuziselo wokugoba ukufikelela kwixabiso elichaziweyo lobushushu, oko kukuthi, iqondo lobushushu eliguquguqukayo, ekubhekiswa kulo njengeqondo lobushushu eliguquguqukayo, okanye i-HDT.
Ubushushu benguqu yeglasi: ibhekisa kwizinto eziphilisiweyo ukusuka kwifom yeglasi ukuya kwi-amorphous okanye i-elastic ephezulu okanye i-fluid state transition (okanye isichasi senguquko) yoluhlu lobushushu elimxinwa lendawo ephakathi, eyaziwa njengeqondo lobushushu leglasi, elidla ngokubonakaliswa Tg, luphawu lokumelana nobushushu.
Umxhesho wokuncipha: ichazwa njengepesenti yomlinganiselo we-shrinkage ukuya kubukhulu ngaphambi kokunciphisa, kwaye i-shrinkage ngumahluko phakathi kobukhulu ngaphambi nangemva kokunciphisa.
Uxinzelelo lwangaphakathi: ibhekisela ekungabikho kwamandla angaphandle, i-colloid (izinto eziphathekayo) ngenxa yobukho beziphene, utshintsho lweqondo lokushisa, i-solvents, kunye nezinye izizathu zoxinzelelo lwangaphakathi.
Ukumelana nemichiza: ibhekiselele kwisakhono sokuxhathisa i-asidi, i-alkali, ityuwa, i-solvents kunye nezinye iikhemikhali.
Ukumelana nedangatye: ibhekisa kwisakhono semathiriyeli ukuxhathisa ukutsha xa idibana nedangatye okanye ukuthintela ukuqhubeka kokutsha xa ukude nedangatye.
Ukumelana nemozulu: ibhekiselele ekuvelweni kwezinto ezibonakalayo elangeni, ubushushu nengqele, umoya nemvula kunye nezinye iimeko zemozulu.
Ukuguga: ukunyanga i-colloid ekuqhubeni, ekugcinweni nasekusetyenzisweni kwenkqubo, ngenxa yezinto zangaphandle (ubushushu, ukukhanya, ioksijini, amanzi, imitha, amandla oomatshini kunye nemidiya yekhemikhali, njl. I-polymer imathiriyeli enqamlezayo, iyaqhekeka, incangathi, ukuqhekeka kombala, ukugqabhuka okurhabaxa, ukuchakwa komphezulu, ukugqabhuka kwe-delamination, ukusebenza kokuwohloka kancinci kweempawu zoomatshini zelahleko yelahleko. of the ayinakusetyenziswa, le nto ibizwa ngokuba kukuguga. Isenzeko solu tshintsho kubizwa ngokuba kukwaluphala.
I-Dielectric rhoqo: ekwabizwa ngokuba yi-capacitance rate, i-induced rate (Imvume). Kubhekiswa "kwiyunithi yeyunithi" nganye yento, kwiyunithi nganye ye "gradient enokwenzeka" inokugcina "amandla ombane" (Electrostatic Energy) ye-Imalini. Xa i-colloid "permeability" inkulu (oko kukuthi, umgangatho umbi kakhulu), kwaye ezimbini zisondele kumsebenzi wangoku wocingo, kunzima ukufikelela kwisiphumo sokugquma okupheleleyo, ngamanye amazwi, kunokwenzeka ukuba kuvelise iqondo elithile. ukuvuza. Ngoko ke, i-dielectric constant of the insulating material ngokubanzi, incinci ingcono. I-dielectric constant of water yi-70, ukufuma okuncinci kakhulu, kuya kubangela utshintsho olubalulekileyo.
4. uninzi lwei-epoxy resin adhesivei-adhesive-setting adhesive, inezi mpawu zilandelayo eziphambili: ukuphakama kweqondo lokushisa ngokukhawuleza ukunyanga; isixa esixutyiweyo kokukhona sikhawuleza ukunyanga; inkqubo yokunyanga ineexothermic phenomenon.
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