(I) Ma'anarepoxy guduro
Epoxy resin yana nufin tsarin sarkar polymer ya ƙunshi rukunin epoxy biyu ko fiye a cikin mahaɗan polymer, na cikin resin thermosetting, resin wakilin shine bisphenol A nau'in epoxy resin.
(II) Halayen resin epoxy (yawanci ake kira bisphenol A irin resin epoxy)
1. ƙimar aikace-aikacen resin epoxy na mutum ɗaya yana da ƙasa sosai, yana buƙatar amfani da shi tare da wakili na warkewa don samun ƙimar aiki.
2. High bonding ƙarfi: da bonding ƙarfi na epoxy guduro m ne a sahun gaba na roba adhesives.
3. Curing shrinkage ne karami, a cikin m epoxy guduro m shrinkage shi ne mafi karami, wanda kuma shi ne epoxy guduro m curing m high daya daga cikin dalilan.
4. Kyakkyawan juriya na sinadarai: ƙungiyar ether, zobe na benzene da ƙungiyar aliphatic hydroxyl a cikin tsarin warkewa ba a sauƙaƙe ta hanyar acid da alkali. A cikin ruwan teku, man fetur, kerosene, 10% H2SO4, 10% HCl, 10% HAc, 10% NH3, 10% H3PO4 da 30% Na2CO3 za a iya amfani da su tsawon shekaru biyu; kuma a cikin 50% H2SO4 da 10% HNO3 nutsewa a dakin da zafin jiki na rabin shekara; 10% NaOH (100 ℃) nutsewa na wata ɗaya, aikin ya kasance baya canzawa.
5. Kyakkyawan rufin lantarki mai kyau: raguwar ƙarfin lantarki na resin epoxy zai iya zama mafi girma fiye da 35kv / mm 6. Kyakkyawan tsarin aiki, girman girman samfurin, juriya mai kyau da ƙarancin ruwa. Bisphenol A-type epoxy resin abũbuwan amfãni suna da kyau, amma kuma yana da rashin amfaninsa: ①. Dankowar aiki, wanda da alama ba ta da daɗi a cikin ginin ②. Kayan da aka warke yana da karye, elongation yana karami. ③. Ƙarfin kwasfa. ④. Rashin juriya ga injina da girgiza zafi.
(III) aikace-aikace da ci gaban naepoxy guduro
1. The ci gaban tarihi na epoxy guduro: epoxy guduro aka nema ga Swiss lamban kira ta P.Castam a 1938, farkon epoxy m ciba ne ɓullo da a 1946, da epoxy shafi aka ɓullo da SOCreentee na Amurka a 1949, da kuma masana'antu samar da epoxy guduro da aka fara a 1958.
2. Aikace-aikace na epoxy guduro: ① Rufi masana'antu: epoxy guduro a cikin shafi masana'antu na bukatar mafi girma adadin ruwa na tushen coatings, foda coatings da high m coatings ne mafi yadu amfani. Ana iya amfani dashi ko'ina a cikin kwantena na bututu, motoci, jiragen ruwa, sararin samaniya, kayan lantarki, kayan wasan yara, sana'a da sauran masana'antu. ② masana'antar lantarki da na lantarki: Ana iya amfani da mannen resin epoxy don kayan rufewa na lantarki, kamar su masu gyara, masu canza wuta, tukunyar tukunya; rufewa da kariya na kayan lantarki; kayayyakin lantarki, rufi da haɗin gwiwa; rufewa da haɗin batura; capacitors, resistors, inductors, saman alkyabbar. ③ Kayan ado na zinari, sana'a, masana'antar kayan wasanni: ana iya amfani da su don alamomi, kayan ado, alamun kasuwanci, kayan aiki, raket, kamun kifi, kayan wasanni, sana'a da sauran kayayyaki. ④ Optoelectronic masana'antu: ana iya amfani da shi don encapsulation, cikawa da haɗin kai na diodes masu haske (LED), bututun dijital, tubes pixel, nunin lantarki, hasken LED da sauran samfuran. ⑤ Masana'antar Ginawa: Hakanan za'a yi amfani da shi sosai a hanya, gada, shimfidar ƙasa, tsarin ƙarfe, gini, rufin bango, madatsar ruwa, aikin injiniya, gyaran kayan al'adu da sauran masana'antu. ⑥ Adhesives, sealants da composites filin: kamar iska turbine ruwan wukake, handicrafts, tukwane, gilashin da sauran nau'i na bonding tsakanin abubuwa, carbon fiber takardar hadaddun, microelectronic kayan sealing da sauransu.
(IV) Halayenepoxy resin m
1. epoxy guduro m dogara ne a kan epoxy guduro halaye na reprocessing ko gyaggyarawa, sabõda haka, ta yi sigogi a layi tare da takamaiman bukatun, yawanci epoxy guduro m kuma bukatar a yi curing wakili tare da domin yin amfani da, da kuma bukatar da za a gauraye uniformly domin ya zama cikakken warkewa, kullum epoxy guduro m da aka sani da A manne ko curing wakili da aka sani da A manne ko curing wakili.
2. nuna babban halaye na epoxy guduro m kafin curing ne: launi, danko, takamaiman nauyi, rabo, gel lokaci, samuwa lokaci, curing lokaci, thixotropy (tasha kwarara), taurin, surface tashin hankali da sauransu. Danko (Viscosity): shine juriya na juriya na ciki na colloid a cikin magudanar ruwa, ana ƙaddara ƙimarsa ta nau'in abu, zazzabi, maida hankali da sauran dalilai.
Gel lokaci: curing na manne shine tsarin canzawa daga ruwa zuwa ƙarfafawa, daga farkon amsawar manne zuwa yanayin mahimmanci na gel yana kula da lokaci mai ƙarfi don lokacin gel, wanda aka ƙaddara ta hanyar haɗuwa da adadin epoxy resin manne, zafin jiki da sauran dalilai.
Thixotropy: Wannan halayyar tana nufin colloid shãfe da waje sojojin (girgiza, motsawa, vibration, ultrasonic taguwar ruwa, da dai sauransu), tare da waje karfi daga lokacin farin ciki zuwa bakin ciki, lokacin da waje dalilai don dakatar da rawar da colloid mayar da asali a lokacin da daidaito na sabon abu.
Tauri: yana nufin juriya na kayan zuwa dakarun waje irin su embossing da scratching. Dangane da hanyoyin gwaji daban-daban Shore (Shore) taurin, Brinell (Brinell) taurin, Rockwell (Rockwell) taurin, Mohs (Mohs) taurin, Barcol (Barcol) taurin, Vickers (Vichers) taurin da sauransu. Ƙimar nau'in gwajin taurin wuya da nau'in gwaji mai alaƙa da mai gwada tauri da aka saba amfani da shi, Tsarin gwajin ƙarfin ƙarfi na Shore yana da sauƙi, dacewa da gwajin samarwa, Za'a iya raba ma'aunin taurin bakin teku zuwa nau'in A, nau'in C, nau'in D, nau'in A don auna colloid mai laushi, nau'in C da D-nau'in don auna Semi-hard da hard colloid.
Tashin hankali: jan hankalin kwayoyin halitta a cikin ruwa ta yadda kwayoyin da ke saman ciki suna da karfi, wannan karfi yana sa ruwa ya zama mai yiwuwa don rage girmansa da kuma samuwar layi daya zuwa saman karfi, wanda aka sani da tashin hankali. Ko kuma jujjuyawar juna tsakanin sassa biyu maƙwabta na saman ruwan kowane tsawon raka'a, bayyanar ƙarfin kwayoyin halitta ne. Naúrar tashin hankali shine N/m. Girman tashin hankali na saman yana da alaƙa da yanayi, tsabta da zafin jiki na ruwa.
3. nuna halaye naepoxy resin mbayan warkewa manyan fasalulluka sune: juriya, ƙarfin lantarki, shayar ruwa, ƙarfin matsawa, ƙarfi (tensile) ƙarfin ƙarfi, ƙarfin ƙarfi, ƙarfin kwasfa, ƙarfin tasiri, yanayin zafin zafi, yanayin canjin gilashi, damuwa na ciki, juriya na sinadarai, elongation, ƙaƙƙarfan ƙima, haɓakar thermal, ƙarancin wutar lantarki, yanayin yanayi, juriya na tsufa, da sauransu.
Juriya: Bayyana halayen juriya na kayan yawanci tare da juriya ko juriya na girma. Juriyar saman ƙasa ɗaya ce kawai tsakanin na'urori biyu masu auna ƙimar juriya, naúrar ita ce Ω. Za'a iya ƙididdige siffar sifar lantarki da ƙimar juriya ta hanyar haɗa ƙarfin juriya ta kowane yanki na yanki. Juriya na ƙara, wanda kuma aka sani da ƙarfin juriya, ƙarfin juriya na ƙara, yana nufin ƙimar juriya ta kauri na kayan, alama ce mai mahimmanci don siffata kaddarorin lantarki na dielectric ko insulating kayan. Yana da mahimmancin ma'auni don siffanta kaddarorin lantarki na dielectric ko insulating kayan. 1cm2 juriya dielectric zuwa yayyo halin yanzu, naúrar shine Ω-m ko Ω-cm. mafi girma da resistivity, mafi kyawun insulating Properties.
Tabbacin ƙarfin lantarki: wanda kuma aka sani da ƙarfin ƙarfin juriya (ƙarfin rufi), mafi girman ƙarfin da aka ƙara zuwa ƙarshen colloid, mafi girman cajin da ke cikin kayan yana ƙarƙashin ƙarfin wutar lantarki, mafi kusantar ionize hadarin, wanda ya haifar da rushewar colloid. Yi insulator rushewar mafi ƙarancin ƙarfin lantarki ana kiransa abin da ke lalata wutar lantarki. Make 1 mm lokacin farin ciki insulating abu rushewar, bukatar ƙara ƙarfin lantarki kilovolts da ake kira insulating abu rufi jure ƙarfin lantarki, ake magana a kai a matsayin jure irin ƙarfin lantarki, naúrar ne: Kv/mm. Insulating kayan rufi da zafin jiki suna da kusanci. Mafi girman zafin jiki, mafi muni da aikin rufewa na kayan haɓakawa. Don tabbatar da ƙarfin rufewa, kowane abu mai rufewa yana da madaidaicin matsakaicin matsakaicin zafin aiki, a cikin wannan zafin jiki da ke ƙasa, ana iya amfani da shi cikin aminci na dogon lokaci, fiye da wannan zafin jiki zai tsufa da sauri.
Ruwan sha: Ma'auni ne na gwargwadon abin da abu ke sha ruwa. Yana nufin karuwar yawan adadin abin da aka nutsar a cikin ruwa na wani lokaci a wani yanayin zafi.
Ƙarfin ƙarfi: Ƙarfin ƙwanƙwasa shine matsakaicin matsakaici lokacin da aka shimfiɗa gel don karya. Har ila yau, an san shi da ƙarfi mai ƙarfi, ƙarfin ƙarfi, ƙarfin ƙarfi, ƙarfin ƙarfi. Naúrar ita ce MPa.
Ƙarfin ƙarfi: wanda kuma aka sani da ƙarfin ƙarfi, yana nufin yankin haɗin gwiwa na naúrar zai iya jure matsakaicin nauyin nauyi daidai da yankin haɗin gwiwa, naúrar MPa da aka saba amfani da ita.
Ƙarfin kwasfa: wanda kuma aka sani da ƙarfin kwasfa, shine matsakaicin nauyin lalacewa ta kowace naúrar nisa zai iya jurewa, shine ma'auni na layin ƙarfin ƙarfin, sashin shine kN / m.
Tsawaitawa: yana nufin colloid a cikin ƙarfin ƙwanƙwasa a ƙarƙashin aikin tsayin haɓaka a cikin ainihin tsawon kashi.
Zafin karkatar da zafi: yana nufin ma'auni na juriya na zafi na kayan warkewa, samfurin kayan warkewa ne wanda aka nutsar da shi a cikin nau'in matsakaicin matsakaici na isothermal mai dacewa don canja wurin zafi, a cikin madaidaicin nauyin nau'in katako mai goyan baya, auna samfurin lanƙwasawa nakasar don isa ƙayyadaddun ƙimar zafin jiki, wato, yanayin zafin zafi, wanda ake magana da shi azaman zafin jiki, ko rage zafi HDT.
Gilashin canjin yanayi: yana nufin kayan da aka warkar da su daga nau'in gilashin zuwa amorphous ko na roba sosai ko canjin yanayin ruwa (ko akasin canjin) na kunkuntar zafin jiki na matsakaicin matsakaici, wanda aka sani da zafin jiki na gilashi, yawanci ana nunawa a cikin Tg, alama ce ta juriya mai zafi.
Rabon ragewa: an ayyana shi a matsayin kaso na rabon raguwa zuwa girman kafin raguwa, kuma raguwa shine bambanci tsakanin girman kafin da bayan raguwa.
Damuwar ciki: yana nufin rashin ƙarfi na waje, colloid (kayan abu) saboda kasancewar lahani, canje-canjen zafin jiki, kaushi, da sauran dalilai na damuwa na ciki.
Juriya na sinadaran: yana nufin iya tsayayya da acid, alkalis, gishiri, kaushi da sauran sinadarai.
Juriya na harshen wuta: yana nufin iyawar abu don tsayayya da konewa lokacin da ake hulɗa da harshen wuta ko don hana ci gaba da konewa lokacin da yake nesa da harshen wuta.
Juriya yanayi: yana nufin bayyanar kayan abu zuwa hasken rana, zafi da sanyi, iska da ruwan sama da sauran yanayin yanayi.
tsufa: curing colloid a cikin aiki, ajiya da kuma amfani da tsari, saboda waje dalilai (zafi, haske, oxygen, ruwa, haskoki, inji sojojin da kuma sinadaran kafofin watsa labarai, da dai sauransu.), jerin jiki ko sinadaran canje-canje, sabõda haka, da polymer abu crosslinking gaggautsa, fatattaka m, discoloration fatattaka, m blistering, surface chalking, delaterimination flaking, da yi na inji ba zai iya zama asara Properties na graduration. amfani da shi, ana kiran wannan al'amari tsufa. Lamarin wannan canjin ana kiransa tsufa.
Dielectric akai-akai: wanda kuma aka sani da ƙimar ƙarfin aiki, ƙimar jawo (Izinin). Yana nufin kowane "ƙarar raka'a" na abu, a cikin kowace naúrar "m gradient" zai iya ajiye "makamashi na lantarki" (Electrostatic Energy) na Nawa. Lokacin da colloid "permeability" ya fi girma (wato, mafi muni da inganci), kuma biyu kusa da aikin waya na yanzu, da wuya a kai ga sakamakon cikakken rufi, a wasu kalmomi, mafi kusantar samar da wani mataki na leaka. Saboda haka, dielectric akai-akai na insulating abu a general, da karami mafi kyau. Dielectric akai-akai na ruwa shine 70, danshi kadan, zai haifar da canje-canje masu mahimmanci.
4. Mafi yawansuepoxy resin mmanne ne mai saita zafi, yana da abubuwa masu zuwa: mafi girman zafin jiki yana saurin warkewa; gauraye adadin da mafi sauri da magani; Tsarin warkewa yana da sabon abu na exothermic.
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