Mica foda wani ma'adinai ne maras ƙarfe wanda ya ƙunshi abubuwa da yawa, galibi SiO2, tare da abun ciki gabaɗaya a kusa da 49% da abun ciki na Al2O3 a kusa da 30%.Mica foda yana da kyau elasticity da tauri.Yana da kyau kwarai ƙari tare da halaye irin su rufi, high zafin jiki juriya, acid da alkali juriya, lalata juriya, da kuma karfi adhesion.Ana amfani da shi sosai a masana'antu kamar kayan lantarki, na'urorin walda, roba, robobi, yin takarda, fenti, fenti, pigments, yumbu, kayan kwalliya, sabbin kayan gini, da sauransu, tare da aikace-aikace masu faɗi sosai.Tare da ci gaba da ci gaban kimiyya da fasaha, mutane sun buɗe ƙarin sabbin filayen aikace-aikacen.Mica foda wani tsari ne na silicate wanda ya ƙunshi yadudduka biyu na silica tetrahedra sandwiched tare da Layer na aluminum oxide octahedra guda ɗaya, yana samar da silica Layer.Gabaɗaya, yana iya rarraba cikin zanen gado na bakin ciki sosai, tare da kauri har zuwa 1 μ A ƙasa m (a zahiri, ana iya yanke shi zuwa 0.001) μm) , tare da diamita mafi girma zuwa kauri rabo;Tsarin sinadarai na mica foda crystal shine: K0.5-1 (Al, Fe, Mg) 2 (SiAl) 4O10 (OH) 2 ▪ NH2O, babban sinadaran sinadaran: SiO2: 43.13-49.04%, Al2O3: 27.93-37.44% , K2O+Na2O: 9-11%, H2O: 4.13-6.12%.

Mica foda na cikin lu'ulu'u ne na monoclinic, waɗanda ke cikin nau'in sikeli kuma suna da siliki mai haske (muscovite yana da gilashin gilashi).Tubalan masu tsabta sune launin toka, fure mai launin shuɗi, fari, da dai sauransu, tare da diamita zuwa kauri na> 80, takamaiman nauyi na 2.6-2.7, taurin 2-3, babban elasticity, sassauci, juriya mai kyau da juriya. ;Ƙunƙarar da ke jure zafi, mai wuyar narkewa a cikin maganin acid-tushe, da kwanciyar hankali na sinadarai.Bayanan gwaji: modulus na roba 1505-2134MPa, juriya mai zafi 500-600 ℃, thermal conductivity 0.419-0.670W.(mK), rufin lantarki 200kv / mm, juriya na radiation 5 × 1014 thermal neutron / cm irradiance.

Bugu da kari, sinadari, tsari, da tsarin foda na mica sun yi kama da na kaolin, kuma yana da wasu halaye na ma'adinan yumbu, kamar tarwatsawa mai kyau da dakatarwa a cikin kafofin watsa labarai masu ruwa da ruwa da abubuwan kaushi na halitta, farar launi, barbashi masu kyau. da mannewa.Saboda haka, mica foda yana da halaye masu yawa na ma'adinan mica da yumbu.

Ganewar mica foda yana da sauqi qwarai.Dangane da gogewa, gabaɗaya akwai hanyoyin da za a bi don bitar ku kawai:

1, The whiteness na mica foda ne ba high, game da 75. Na sau da yawa samun tambayoyi daga abokan ciniki, furtawa cewa whiteness na mica foda ne a kusa da 90. A karkashin al'ada yanayi, da fari na mica foda ne kullum ba high, kawai a kusa da 75. Idan doped tare da wasu filler kamar calcium carbonate, talc foda, da dai sauransu, da fari za a inganta sosai.

2. Mica foda yana da m tsarin.Ɗauki beaker, ƙara 100ml na ruwa mai tsabta, da kuma motsawa tare da sandar gilashi don ganin cewa dakatar da mica foda yana da kyau sosai;Sauran filaye sun haɗa da foda mai haske, foda talc, calcium carbonate da sauran samfuran, amma aikin dakatarwar su bai yi kyau ba kamar mica foda.

3. Ki shafa dan kadan daga cikin sa zuwa wuyan hannu, wanda ke da tasirin lu'u-lu'u kadan.Mica foda, musamman sericite foda, yana da wani sakamako na pearlescent kuma ana amfani dashi sosai a masana'antu irin su kayan shafawa, sutura, robobi, roba, da sauransu.

Babban aikace-aikace na mica foda a cikin sutura.

Aikace-aikacen foda na mica a cikin sutura yana nunawa a cikin abubuwa masu zuwa:

1. Tasirin shamaki: Filaye masu kama da takarda suna samar da tsari na daidaitaccen tsari a cikin fim ɗin fenti, kuma an toshe shigar ruwa da sauran abubuwa masu lalata a cikin fim ɗin fenti da ƙarfi.Lokacin da ake amfani da foda mai inganci (diamita zuwa kauri na guntu aƙalla sau 50, zai fi dacewa fiye da sau 70), lokacin shigar ruwa da sauran abubuwa masu lalata ta cikin fim ɗin fenti gabaɗaya sau uku.Saboda gaskiyar cewa sericite foda fillers sun fi rahusa fiye da resins na musamman, suna da darajar fasaha da tattalin arziki sosai.Yin amfani da foda mai mahimmanci na sericite shine hanya mai mahimmanci don inganta inganci da aiki na suturar lalata da kuma bango na waje.A lokacin aikin rufewa, kwakwalwan kwamfuta na sericite suna fuskantar tashin hankali na sama kafin fim ɗin fenti ya ƙarfafa, ta atomatik suna samar da tsari wanda yake daidai da juna da kuma saman fuskar fenti.Wannan Layer ta tsarin tsari, tare da daidaitawarsa daidai daidai da hanyar da abubuwa masu lalata suka shiga cikin fim ɗin fenti, yana da tasiri mafi tasiri.
2. Inganta kayan aiki na jiki da na injiniya na fim din fenti: Yin amfani da foda na sericite zai iya inganta jerin kayan aikin jiki da na inji na fim din fenti.Makullin shine halayen halittar filler, wato diamita zuwa kauri rabo na filler-kamar filaye da tsayin daka zuwa diamita rabon fibrous filler.Fitar granular, kamar yashi da dutse a cikin kankare, suna taka rawar ƙarfafawa wajen ƙarfafa sandunan ƙarfe.
3. Haɓaka juriyar lalacewa na fim ɗin fenti: Taurin resin kanta yana da iyaka, kuma ƙarfin yawancin filaye shima ba shi da girma (kamar talc foda).Sabanin haka, sericite yana ɗaya daga cikin abubuwan granite, tare da ƙarfin ƙarfi da ƙarfin injin.Sabili da haka, ƙara sericite foda a matsayin mai cikawa a cikin sutura zai iya inganta haɓaka juriya.Yawancin kayan kwalliyar mota, kayan kwalliyar hanya, kayan aikin hana lalata na inji, da kayan kwalliyar bango suna amfani da foda na sericite.
4. Ayyukan haɓakawa: Sericite yana da tsayin daka sosai kuma shine kanta mafi kyawun kayan haɓakawa.Yana samar da wani hadadden tsari tare da resin siliki na kwayoyin halitta ko siliki boron resin siliki kuma yana canza shi zuwa kayan yumbu tare da kyakkyawan ƙarfin injina da aikin rufewa yayin fuskantar yanayin zafi.Sabili da haka, wayoyi da igiyoyi da aka yi da irin wannan nau'in kayan rufewa har yanzu suna kula da yanayin su na asali ko da bayan an kone su a cikin wuta.Yana da matukar mahimmanci ga ma'adinai, ramuka, gine-gine na musamman, wurare na musamman, da dai sauransu.
5. Harshen wuta: Sericite foda ne mai mahimmanci mai cike da wuta.Idan an haɗe shi da ƙwayoyin halogen na harshen wuta, za a iya shirya abin rufe wuta da mayafin wuta.
6. UV da juriya na infrared: Sericite yana da kyakkyawan aiki a cikin kariya daga ultraviolet da infrared radiation.Don haka ƙara rigar sericite foda zuwa suturar waje na iya haɓaka juriya na UV na fim ɗin fenti da jinkirta tsufa.Ana amfani da aikin garkuwar infrared ɗin sa don shirya kayan kwalliya da kayan kwalliya (kamar sutura).
7. Thermal radiation da high-zazzabi coatings: Sericite yana da kyau infrared radiation ikon, kamar a hade tare da baƙin ƙarfe oxide, wanda zai iya haifar da kyakkyawan thermal radiation effects.
8. Murfin sauti da tasirin girgizawa: Sericite na iya canza jerin abubuwan kayan aikin jiki sosai, ƙirƙirar ko canza viscoelasticity.Irin wannan nau'in kayan yana ɗaukar makamashi mai ƙarfi sosai, yana raunana raƙuman girgiza da raƙuman sauti.Bugu da kari, maimaitawa na raƙuman girgiza da raƙuman sauti tsakanin guntun mica shima yana raunana ƙarfinsu.Ana kuma amfani da foda na Sericite don shirya sautin sauti, mai hana sauti, da kuma abin rufe fuska.