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I-Dimethyldiethoxysilane iba yisihluthulelo sokwenziwa kwe-silicone resin

I-silicone ingilazi ye-resin kanye ne-adhesive ye-silicone ye-mica ephikisana nokushisa okuphezulu.

U-Huo Changshun no-Chen Rufeng abavela e-Chenguang Chemical Research Institute, uMnyango Wezimboni zamakhemikhali, njll. bakha inhlaka yengilazi ye-silicone kanye ne-adhesive ye-mica eshisa kakhulu e-China.Ngasekupheleni kwawo-1970, i-cts-103 silicone resin, eyaziwa ngokuthi "i-silicone glass resin", yathuthukiswa ngempumelelo yi-hydropolycondensation ye-methyltriethoxysilane phambi kwe-acid catalyst.I-resin yayisetshenziswa ekwelapheni iphepha elithuthukisiwe, ukuvikela ukumbozwa kwendawo yensimbi, kanye nokubopha i-mica sheet noma i-mica powder ekuqaleni.Ngo-1980, i-Sanhua, Xue Zhiqing kanye no-Li Yansheng, abakhiqizi be-resin e-Shanghai, ngokulandelana, basebenzisa inhlaka eqinile yokushintshanisa i-cation njengesisusa se-asidi yesikhashana.Ama-silicone ama-silicone angafihli futhi angagugi we-sar-1 ne-sar-2 ahlanganiswa ngokungeza inani elincane le-dimethyldiethoxysilane ku-monomethyltriethoxysilane eyinhloko.Ayikho i-asidi ye-inorganic esele ku-resin, ngakho-ke ukusebenza kokugcina komkhiqizo kuzinzile kakhulu, futhi akukho simende esitholakala ngonyaka olandelayo.Ngenxa yokwethulwa kwenani elincane lezinto zokusetshenziswa ezingasebenzi, imikhiqizo ye-sar-2 iqinile, iphakathi futhi ithambile, inohlu olubanzi lwezinhlelo zokusebenza.Ingasetshenziswa kabanzi engilazini, ipulasitiki, insimbi nezinye izinto, ikakhulukazi ukuvikela amapulasitiki asobala njenge-polycarbonate, i-polystyrene ne-PVC, kanye nokuvikela umswakama nokuvikela ukuvikela izakhi ze-elekthronikhi, okuzokwakhiwa ngokushesha okukhulu- ukukhiqizwa kwesikali.

Kusukela ngo-1980 kuya ku-1982, u-Qi hongqiu, u-Li Yan no-Cui Zuoming base-Chenguang Chemical Research Institute, futhi kusukela ngo-1981 kuya ku-1983, u-Xu Zhihong no-Xue Zhiqing base-Shanghai resin factory basebenzisa i-methyltrichlorosilane njengezinto zokusetshenziswa eziyinhloko ukulungisa ingcina ye-mica eqinile ye-silicone ukumelana nokushisa okuphezulu.Amabanga omkhiqizo ngu-mr-30 kanye no-sar-8 ngokulandelanayo.Ngaphezu kokumelana nokushisa okuphezulu, ukufakwa kukagesi, umswakama-ubufakazi, ubufakazi bamanzi kanye nezinye izakhiwo zemikhiqizo ye-organosilicon evamile, imikhiqizo ibuye ibe nezakhiwo eziphezulu zokunamathela kanye ne-flame retardant.Isetshenziselwa kakhulu ukukhiqiza ibhodi likamama le-powder elingavimbeli izinga lokushisa eliphezulu, i-electronic tube insulation, izinga lokushisa eliphakeme elingamelana ne-powder cloud motherboard ukuze lisekelwe, ibhodi le-mica lokuvula ukufakwa kwangaphakathi komshini wokushisela kagesi, njll. Imibala ehlukahlukene ekwazi ukumelana nokushisa nayo ingangezwa njengezingubo ezingenantuthu kanye nezokunqanda ukubola, futhi zingasetshenziswa njengenhlanganisela yokubumba engashi noma i-ceramic molding resin eyakhiwe ngengilazi ye-fiber composite laminate ne-silica.I-China inothile ngezinsiza ze-mica powder, ezingathuthukiswa zibe uchungechunge lwemikhiqizo yebhodi le-mica ekwazi ukumelana nokushisa okuphezulu.

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I-Jiangxi Huahao igxile ekukhiqizeni i-dimethyldiethoxysilane

I-Sar-8 kanye ne-sar-9 yemboni ye-resin yase-Shanghai basebenzisa eyabo indlela yesici senqubo: i-hydrolyze ne-alcoalysis organosilicon monomers kanye nokugxilisa ingqondo kanye ne-polycondensate ngesikhathi esifanayo.I-Sar-8 ne-sar-9 yafakwa ekukhiqizweni ngo-1983, futhi umphumela usufinyelele cishe amathani ayinkulungwane.Impahla yokusetshenziswa eyinhloko yomkhiqizo i-methyltrichlorosilane, ngakho-ke noma ngabe i-mr-30 noma i-sar-8 noma i-sar-9 ikhiqizwa, inani lokusetshenziswa kwe-methyltrichlorosilane lingathuthukiswa kakhulu.

Amapulasitiki okubumba we-Organosilicon

Ngawo-1960, imboni yezindiza yaseShayina yayidinga ngokuphuthumayo uhlobo lwepulasitiki yesikhunta ye-arc engamelana ne-arc engamelana nogesi oqinile wamanje kanye nophezulu wokwenza amaswishi amancane.I-Beijing Research Institute yemboni yamakhemikhali ithuthukise ngempumelelo i-silicone resin e-hydrolyzed ngokuqondile isuka ku-methyltrichlorosilane futhi yenziwa ipulasitiki engamelana ne-arc ene-asbestos filler, esixazulule isidingo esiphuthumayo semboni yezokundiza.Izinto zadluliselwa e-Shanghai resin factory ukuze zikhiqize.Kodwa-ke, abasebenzisi basaludinga lolu hlobo lwezinto, ngakho-ke kufanele bacele usizo e-Chenguang Chemical Research Institute, eyathuthela esifundazweni sase-Sichuan.Ukuze kuhlangatshezwane nezidingo eziphuthumayo zabasebenzisi, u-Wu Shengquan et al.I-Institute isebenzise umzila we-hydrolysis condensation osuka ku-methyltriethoxysilane njengento yokuqala ukulungisa inhlaka ye-silicone yokubumba amapulasitiki asebenza ngendlela egculisayo, ukuze kuxazululwe izidingo eziphuthumayo zabasebenzisi.

I-Silicone resin sealing material

Ngasekupheleni kwawo-1960, ngokuthuthukiswa kwemboni ye-elekthronikhi yaseShayina, kuyadingeka ukusebenzisa izinto zokuvala i-silicone ezine-insulation kagesi enhle kakhulu, ukumelana nokushisa okuphezulu, umswakama-umswakama nokungashisi ukupakisha ama-diode amakhulu namancane amancane, ama-triode, ama-resistors, ama-capacitor, amasekhethi adidiyelwe nezinye izinto zikagesi.E-China, uZhang Xinghua, yena Jigang, et al.WeSikhungo Sekhemikhali yeChinese Academy of Sciences, kanye noZhang Jikai, Li Yansheng, et al.Of Shanghai resin ifektri baqale wahlanganyela ukuthuthukiswa resin ezinjalo.Bakha imikhiqizo ehlukahlukene ukuze bavale igebe lasekhaya.

I-silicone resin eguquliwe yokugqoka

I-silicone evamile ngokuvamile yakhiwa i-polymethylsiloxane ne-polyphenylsiloxane.Ukuhambisana kwe-silicone resin equkethe i-phenyl ne-organic resin kungcono kunaleyo ye-methyl silicone resin.Ukumelana nokushisa nokumelana namanzi kwezingubo ezijwayelekile kungathuthukiswa ngokwethula i-phenyl silicone kubo.Embonini yokugqoka, i-siloxane equkethe i-coating ephezulu yokusebenza ingalungiswa ngokuxuba noma i-copolymerization ye-phenyl equkethe i-silicone resin.Ekuqaleni kwawo-1960, ifekthri kapende yaseTianjin kanye nemboni ye-resin yaseShanghai yathuthukisa ngempumelelo ukunamathela kwe-silicone modified synthetic resin.Izinhlobonhlobo zezinto ezinhle zenziwe, njenge-silicone modified epoxy resin enokumelana okuhle nokushisa nokunamathela.


Isikhathi sokuthumela: Sep-24-2022