Igodo nke nyocha na mmepụta nke silicone roba na China - dimethyldiethoxysilane

Ihe bụ isi na-ekpo ọkụ vulcanized rọba silicone

China malitere ime nyocha na rụpụta rọba raw nke okpomọkụ vulcanized (nke a makwaara dị ka okpomọkụ gwọọ) rọba silicone na ngwụcha afọ 1950.Ọ bụghị akaha n'ụwa ka China malitere inyocha rọba silicone.N'ihi ọrụ mmepe chọrọ ọnụ ọgụgụ dị ukwuu nke hydrolysates dị elu nke dimethyldichlorosilane (nke sitere na octamethylcyclotetrasiloxane (D4, ma ọ bụ DMC) nwetara; na mbụ, n'ihi enweghị ọnụ ọgụgụ buru ibu nke methylchlorosilane, ọ na-esiri ike ịnweta ọnụ ọgụgụ buru ibu. nke dị ọcha dimethyldichlorosilane, na ọ dịghị ezu iji na-anwale na-emepụta ihe bụ isi akụrụngwa nke raw silicone roba octamethylcyclotetrasiloxane. mmepụta nke methylchlorosilane nke ụlọ ọrụ mmepụta ihe siri ike, yabụ ndị ọrụ nka nke ngalaba dị mkpa na China akwụwo ụgwọ ọrụ dị ukwuu ma nọrọ ọtụtụ oge.

Yang Dahai, Shenyang Chemical Research Institute, wdg weputara ihe atụ nke rọba silicone nke a kwadebere site na dimethyldichlorosilane nke emere onwe ya na ncheta nke iri nke ụbọchị mba.Lin Yi na Jiang Yingyan, ndị nchọpụta nke Institute of chemistry, Chinese Academy of Sciences, mekwara mmepe nke methyl silicone roba n'oge.N'afọ ndị 1960, ọtụtụ nkeji mepụtara roba silicone.

Naanị mgbe ihe ịga nke ọma nke njikọ kpọmkwem nke methylchlorosilane na akwa akwa akwa, enwere ike ịnweta akụrụngwa maka njikọ nke roba silicone raw.N'ihi na ọchịchọ nke silicone rubber dị ngwa ngwa, ya mere enwere nkeji na Shanghai na North China ịmalite ịmepụta rọba silicone.Dịka ọmụmaatụ, Shanghai Chemical Research Institute na Shanghai na-amụ njikọ nke methyl chlorosilane monomer na nyocha na ule nke silicone roba;Shanghai Xincheng chemical osisi na Shanghai resin osisi tụlee njikọ nke silicone roba si n'ọnọdụ nke mmepụta.

N'ebe ugwu, ụlọ ọrụ nyocha nke ụlọ ọrụ Jihua, ụlọ ọrụ ụlọ ọrụ kemịkalụ na China, na-etinye aka na nyocha na mmepe nke rọba sịntetik.Ka oge na-aga, ụlọ ọrụ nyocha ahụ mụbara nyocha na mmepe nke rọba silicone nke Zhu BAOYING na-edu.E nwekwara ụlọ ọrụ imewe na ụlọ ọrụ mmepụta ihe na ụlọ ọrụ Jihua, nke nwere ọnọdụ imekọ ihe ọnụ dị mma iji mepụta usoro zuru ezu site na methyl chlorosilane monomer na roba silicone sịntetik.

N'afọ 1958, a kwagara akụkụ organosilicon nke Shenyang Chemical Research Institute gaa na ụlọ ọrụ nyocha nke Chemical Chemical Beijing.Na mmalite 1960s, Shenyang Chemical Research Institute hibere ụlọ ọrụ nyocha organosilicon nke Zhang Erci na ye Qingxuan na-eduzi iji mepụta organosilicon monomer na silicone roba.Dị ka echiche nke Ụlọ Ọrụ nke Abụọ nke Ministry of Chemical Industry, Shenyang Chemical Research Institute so na mmepe nke silicone roba na Research Institute of Jilin chemical ụlọ ọrụ.N'ihi na njikọ nke silicone roba nwekwara mkpa vinyl mgbanaka, otú Shenyang Chemical Research Institute maka njikọ nke methylhydrodichlorosilane na ndị ọzọ na-akwado organosilicon monomers.

Nke mbụ ogbe mmepụta nke silicone rọba na Shanghai bụ "circuitous ụzọ"

Na 1960, plastic ụlọ ọrụ nke Shanghai Chemical Industry Bureau nyere Xincheng chemical osisi ọrụ ịzụlite silicon roba ngwa ngwa mkpa site agha ụlọ ọrụ.N'ihi na osisi ahụ nwere chloromethane, ngwaahịa pesticide sitere na organosilicon akụrụngwa, ọ nwere ọnọdụ iji synthesize methyl chlorosilane, ihe akụrụngwa nke silicon roba.Osisi kemịkalụ Xincheng bụ obere ụlọ ọrụ na-arụkọ ọrụ ọnụ nke ọha na eze, yana naanị ndị ọrụ injinia abụọ, Zheng Shanzhong na Xu Mingshan.Ha chọpụtara isi okwu abụọ dị mkpa na ọrụ nyocha silicone roba, otu bụ ịdị ọcha nke dimethyldichlorosilane, nke ọzọ bụ ọmụmụ nke usoro polymerization na nhọrọ nke ihe mkpali.N'oge ahụ, organosilicon monomers na intermediates amachibidoro na igbochi na China.N'oge ahụ, ọdịnaya nke dimethyldichlorosilane na njikọ nke methylchlorosilane monomer na anụ ụlọ kpaliri bed bụ ala, na oru oma distillation technology e mejuputa atumatu ma, n'ihi ya, ọ gaghị ekwe omume inweta a ọnụ ọgụgụ buru ibu nke elu-ọcha dimethyldichlorosilane monomer dị ka raw. ihe nke silicone roba.Ya mere, ha nwere ike iji naanị dimethyldichlorosilane nwere ịdị ọcha dị ala nke enwere ike nweta n'oge ahụ iji dozie ihe ndị na-emepụta ethoxyl site na alcoholysis.The anya n'etiti esi ebe nke methyltriethoxysilane (151 Celsius C) na esi n'ókè nke dimethyldiethoxysilane (111 Celsius C) mgbe alcoholization dịtụ ukwuu, na esi n'ókè dị iche dị ka 40 Celsius C, nke dị mfe ikewapụ, ya mere. Enwere ike nweta dimethyldiethoxysilane na ịdị ọcha dị elu.Mgbe ahụ, a gbanwere dimethyldiethoxysilane hydrolyzed na octamethylcyclotetrasiloxane (methyld4).Mgbe nkewa gasịrị, a na-emepụta D4 dị ọcha, nke edozi nsogbu nke akụrụngwa nke silicone roba.Ha na-akpọ usoro nke inweta D4 site n'ụzọ na-apụtachaghị ìhè nke mmanya na-egbu egbu "ụzọ aghụghọ".

N'oge mmalite nke nyocha na mmepe nke silicone roba na China, enweghi nghọta nke usoro nhazi nke silicone roba na mba ndị dị n'ebe ọdịda anyanwụ.Ụfọdụ nkeji gbalịrị dịtụ oge ochie mgbanaka oghere mmeghe catalysts dị ka sulfuric acid, ferric chloride, aluminum sulfate, wdg. Mgbe ahụ, ihe mmapụta catalyst ẹdude ke otu narị puku kwuru puku molekul arọ raw silica jel na-asa na distilled mmiri na okpukpu abụọ ala, ya mere, ọ bụ usoro na-adịghị mma nke ukwuu iji nke a na-emepe oghere.

Zheng Shanzhong na Xu Mingshan, ihe abụọ na-eme nwa oge na-aghọta ihe ndị pụrụ iche, chere na ọ nwere ezi uche na ọdịdị dị elu.Ọ bụghị naanị na ọ ga-eme ka mma nke silicone rubber dị mma, kamakwa ọ na-eme ka ọrụ nhazi post-processing dị mfe.N'oge ahụ, e jibeghị mba ọzọ mee ihe maka mmepụta ụlọ ọrụ mmepụta ihe.Ha kpebiri imepụta tetramethyl ammonium hydroxide na tetrabutyl phosphonium hydroxide n'onwe ha, ma tụnyere ha.Ha chere na nke mbụ nwere afọ ojuju karị, ya mere a kwadoro usoro polymerization.Mgbe ahụ, a na-emepụta ọtụtụ narị kilogịg nke rọba silicone doro anya na nke doro anya site na ngwa ndị ejiri aka ha rụọ ma rụpụta ya.Na June 1961, Yang Guangqi, onye isi ụlọ ọrụ nke abụọ nke Ministry of Chemical Industry, bịara na ụlọ ọrụ mmepụta ihe maka nyocha ma nwee obi ụtọ ịhụ ngwaahịa rọba silicone ruru eru.Ọ bụ ezie na ọnụ ahịa rọba nke usoro a na-emepụta dị oke ọnụ, rọba silicone nke nwere ike imepụta oke na-ebelata mkpa dị ngwa n'oge ahụ.

Ụlọ ọrụ resin Shanghai, nke Shanghai Chemical Industry Bureau na-eduzi, buru ụzọ guzobe akwa akwa 400mm na-akpali akpali na China iji mepụta methyl chlorosilane monomers.Ọ bụ ụlọ ọrụ nwere ike inye methyl chlorosilane monomers na batches n'oge ahụ.Mgbe ahụ, iji mee ngwangwa mmepe nke silicone ụlọ ọrụ na Shanghai na mezie ike nke silicone, Shanghai Chemical Bureau merged Xincheng chemical osisi na Shanghai resin osisi, na aka iso na-ebu ule nke na-aga n'ihu njikọ usoro ngwaọrụ nke elu okpomọkụ vulcanized silicone. rọba.

Ụlọ ọrụ mmepụta ihe nke Shanghai ewepụtala ogbako pụrụ iche maka mmepụta mmanụ silicone na mmepụta roba na ụlọ ọrụ resin Shanghai.Shanghai resin factory ka ọma ikpe-emepụta elu agụụ mgbasa mgbapụta mmanụ, abụọ-component ụlọ okpomọkụ vulcanized silicone roba, phenyl methyl silicone mmanụ na na, nke na-amachibidoro site mba ọzọ.Ụlọ ọrụ resin Shanghai aghọwo ụlọ ọrụ zuru oke nke nwere ike ịmepụta ọtụtụ ụdị ngwaahịa silicone na China.Ọ bụ ezie na na 1992, n'ihi mgbanwe nke ulo oru okirikiri nhọrọ ukwuu na Shanghai, Shanghai resin factory kwụsịrị mmepụta nke methyl chlorosilane na ndị ọzọ monomers, na kama zụrụ monomers na intermediates na-emepụta downstream ngwaahịa.Otú ọ dị, ụlọ ọrụ resin Shanghai nwere ihe na-adịghị emebi emebi na mmepe nke organosilicon monomers na organosilicon polymer ihe na China.