ʻO ke kī o ka noiʻi ʻana a me ka hana ʻana o ka silicone rubber ma Kina - dimethyldiethoxysilane

Pākuʻi wela vulcanized silicone rubber

Ua hoʻomaka ʻo Kina i ka noiʻi ʻana a me ka hana ʻana i ka rubber maka o ka wela vulcanized (ʻike pū ʻia ʻo ia ka heat cured) silicone rubber i ka hopena o nā makahiki 1950.ʻAʻole i lohi loa i ka honua i hoʻomaka ai ʻo Kina e ʻimi i ka lāʻau silicone.Ma muli o ka hana hoʻomohala e pono ai ka nui o nā hydrolysates maʻemaʻe kiʻekiʻe o dimethyldichlorosilane (mai kahi octamethylcyclotetrasiloxane (D4, a i ʻole DMC) i loaʻa; ma mua, ma muli o ka nele o ka nui o ka methylchlorosilane, paʻakikī ke kiʻi i kahi helu nui. o ka dimethyldichlorosilane maʻemaʻe, a ʻaʻole lawa ka hoʻāʻo ʻana i ka hana kumu kumu o ka octamethylcyclotetrasiloxane silicone maka, aia kekahi pono no nā catalysts kūpono i ka polymerization wehe apo, ʻo ia nā pilikia nui i ka wā mua o ka hoʻomohala ʻana. paʻakikī loa ka hana ʻana o ka methylchlorosilane, no laila ua uku nui nā limahana ʻenehana o nā ʻāpana kūpono ma Kina i ka hana nui a ua hoʻolimalima i ka manawa.

Ua hōʻike ʻo Yang Dahai, Shenyang Chemical Research Institute, a me nā mea ʻē aʻe i nā laʻana o ka silicone rubber i hoʻomākaukau ʻia mai ka dimethyldichlorosilane i hana ponoʻī a hiki i ka makahiki 10 o ka lā aupuni.ʻO Lin Yi lāua ʻo Jiang Yingyan, nā mea noiʻi o ka Institute of chemistry, Chinese Academy of Science, ua hana pū kekahi i ka hoʻomohala ʻana i ka methyl silicone rubber i ke kakahiaka nui.I ka makahiki 1960, ua hoʻomohala hou nā ʻāpana i ka lāʻau silicone.

Ma hope wale nō o ka kūleʻa o ka synthesis pololei o ka methylchlorosilane i loko o ka moena i hoʻoulu ʻia, hiki ke loaʻa nā mea maka no ka synthesis o ka lāʻau silicone maka.No ka mea ʻo ke koi ʻana o ka silicone rubber ka wikiwiki loa, no laila aia nā ʻāpana ma Shanghai a me Kina ʻĀkau e hoʻomaka e hoʻomohala i ka silicone rubber.No ka laʻana, ke noiʻi nei ʻo Shanghai Chemical Research Institute ma Shanghai i ka synthesis o ka methyl chlorosilane monomer a me ka ʻimi ʻana a me ka hoʻāʻo ʻana o ka silicone rubber;ʻO ka mea kanu kemika ʻo Shanghai Xincheng a me ka mea kanu resin Shanghai e noʻonoʻo i ka synthesis o ka silicone rubber mai ka hiʻohiʻona o ka hana.

Ma ke kūkulu ʻākau, ʻo ka Research Institute of Jihua hui, kahi kahua ʻoihana kemika ma Kina, ke hana nui nei i ka noiʻi a me ka hoʻomohala ʻana i ka lāʻau synthetic.Ma hope mai, ua hoʻonui ka noiʻi noiʻi i ka noiʻi a me ka hoʻomohala ʻana o ka silicone rubber i alakaʻi ʻia e Zhu BAOYING.Aia kekahi mau papa hana hoʻolālā a me nā mea kanu hana ma ka hui ʻo Jihua, nona kahi kūlana hui maikaʻi hoʻokahi e hoʻomohala i kahi papa hana piha mai ka methyl chlorosilane monomer a hiki i ka synthetic silicone rubber.

I ka makahiki 1958, ua hoʻoneʻe ʻia ka ʻāpana organosilicon o Shenyang Chemical Research Institute i ka Beijing Chemical Research Institute.I ka makahiki mua o 1960, ua hoʻokumu ʻo Shenyang Chemical Research Institute i kahi keʻena noiʻi organosilicon i alakaʻi ʻia e Zhang Erci a me ʻoe Qingxuan e hoʻomohala i ka monomer organosilicon a me ka rubber silicone.Wahi a nā manaʻo o ke Keʻena ʻElua o ke Kuhina o ka ʻoihana kemika, ua komo ʻo Shenyang Chemical Research Institute i ka hoʻomohala ʻana i ka silicone rubber ma ka Research Institute of Jilin chemical company.No ka mea ʻo ka synthesis o ka silicone rubber e pono ai ke apo vinyl, no laila ʻo Shenyang Chemical Research Institute no ka synthesis o methylhydrodichlorosilane a me nā monomers organosilicon kākoʻo.

ʻO ka hana mua o ka silicone rubber ma Shanghai he "circuitous tactics"

I ka makahiki 1960, ua hāʻawi ka hui plastic o Shanghai Chemical Industry Bureau i ka Xincheng chemical plant i kahi hana e hoʻomohala ai i ka lāʻau silika i makemake nui ʻia e ka ʻoihana koa.No ka mea he chloromethane ka mea kanu, he pesticide by-product o organosilicon raw material, loaʻa iā ia nā kūlana e synthesize i ka methyl chlorosilane, kahi mea maka o ka silicon rubber.ʻO ka mea kanu kemika ʻo Xincheng he mea kanu liʻiliʻi o ka lehulehu a me ka pilikino pilikino, me ʻelua mau loea ʻenekinia, ʻo Zheng Shanzhong a me Xu Mingshan.Ua ʻike lākou i ʻelua mau pilikia ʻenehana nui i ka papahana noiʻi silicone rubber, ʻo ka hoʻomaʻemaʻe ʻana i ka dimethyldichlorosilane, ʻo ka mea ʻē aʻe ke aʻo ʻana i ke kaʻina hana polymerization a me ke koho ʻana i ka catalyst.I kēlā manawa, ua pāpā ʻia nā monomer organosilicon a me nā mea waena ma Kina.I kēlā manawa, ʻaʻole i hoʻokō ʻia ka ʻenehana dimethyldichlorosilane i ka synthesis o ka monomer methylchlorosilane i loko o ka moena hoʻoulu hale, a ʻaʻole i hoʻokō ʻia ka ʻenehana distillation maikaʻi, no laila ʻaʻole hiki ke loaʻa ka nui o ka monomer dimethyldichlorosilane maʻemaʻe kiʻekiʻe e like me ka maka. mea lako silicone.No laila, hiki iā lākou ke hoʻohana wale i ka dimethyldichlorosilane me ka maʻemaʻe haʻahaʻa i hiki ke loaʻa i kēlā manawa e hoʻomākaukau ai i nā derivatives ethoxyl e ka alcoholysis.ʻO ka mamao ma waena o ka paila paila o methyltriethoxysilane (151 ° C) a me ka paila paila o dimethyldiethoxysilane (111 ° C) ma hope o ka inu ʻana i ka waiʻona he ʻano nui, a ʻo ka ʻokoʻa ʻokoʻa e like me 40 ° C, he maʻalahi ke hoʻokaʻawale, no laila. hiki ke loaʻa ka dimethyldiethoxysilane me ka maʻemaʻe kiʻekiʻe.A laila, ua hydrolyzed ka dimethyldiethoxysilane i octamethylcyclotetrasiloxane (methyld4).Ma hope o ka haʻihaʻi ʻana, ua hana ʻia ka D4 maʻemaʻe kiʻekiʻe, ka mea i hoʻoponopono i ka pilikia o ka mea maka o ka silicone rubber.Kapa lākou i ke ʻano o ka loaʻa ʻana o D4 ma o ke ala ʻole o ka alcoholysis "circuitous tactics".

I ka hoʻomaka ʻana o ka noiʻi a me ka hoʻomohala ʻana i ka silicone rubber ma Kina, ʻaʻole maopopo ka ʻike o ke kaʻina hana synthesis o ka silicone rubber ma nā ʻāina komohana.Ua ho'āʻo kekahi mau ʻāpana i nā mea hoʻohenehene wehe mua loa e like me ka sulfuric acid, ferric chloride, alumini sulfate, a me nā mea ʻē aʻe. He kaʻina hana makemake ʻole e hoʻohana i kēia catalyst open-loop.

ʻO Zheng Shanzhong lāua ʻo Xu Mingshan, nā mea hoʻoheheʻe pōkole ʻelua i hoʻomaopopo i nā waiwai kūʻokoʻa, manaʻo ʻo ia ka noʻonoʻo a me ke ʻano kiʻekiʻe.ʻAʻole hiki iā ia ke hoʻomaikaʻi wale i ka maikaʻi o ka silicone rubber, akā maʻalahi hoʻi i ka hana post-processing.I kēlā manawa, ʻaʻole i hoʻohana ʻia nā ʻāina ʻē no ka hana ʻoihana.Ua hoʻoholo lākou e synthesize i ka tetramethyl ammonium hydroxide a me ka tetrabutyl phosphonium hydroxide ma o lākou iho, a hoʻohālikelike iā lākou.Ua manaʻo lākou ua ʻoi aku ka maikaʻi o ka mea mua, no laila ua hōʻoia ʻia ke kaʻina hana polymerization.A laila, ua hana ʻia he mau haneli kilokani o ke kopa silicone akaka a maʻemaʻe ma o nā mea hoʻokele ponoʻī i hoʻolālā ʻia a hana ʻia.I Iune 1961, ua hele mai ʻo Yang Guangqi, ka luna o ka ʻOihana ʻElua o ke Kuhina o ka ʻoihana kemika, i ka hale hana no ka nānā ʻana a hauʻoli loa i ka ʻike ʻana i nā huahana silicone rubber.ʻOiai ke kiʻekiʻe o ke kumukūʻai o ka lāʻau lapaʻau i hana ʻia e kēia ʻano, ʻo ka silicone rubber hiki ke hana nui ʻia e hoʻēmi i ka pono wikiwiki i kēlā manawa.

ʻO Shanghai resin factory, alakaʻi ʻia e Shanghai Chemical Industry Bureau, ua hoʻonohonoho mua i kahi moena hoʻouluulu 400mm anawaena ma Kina e hana i nā monomers methyl chlorosilane.He ʻoihana ia e hiki ke hāʻawi i nā monomer methyl chlorosilane i nā pūʻulu i kēlā manawa.Ma hope o kēlā, i mea e hoʻolōʻihi i ka hoʻomohala ʻana o ka ʻoihana silicone ma Shanghai a hoʻoponopono i ka ikaika o ka silicone, ua hui ʻo Shanghai Chemical Bureau i ka Xincheng chemical plant me Shanghai resin mea kanu, a hoʻomau i ka hoʻokō ʻana i ka hoʻāʻo ʻana o ka hana hana synthesis mau o ka silicone vulcanized kiʻekiʻe. ʻōpala.

Ua hoʻokumu ʻo Shanghai Chemical Industry Bureau i kahi papa hana kūikawā no ka ʻaila silikoni a me ka hana ʻana o ka silicone rubber ma Shanghai resin factory.Ua ho'āʻo maikaʻi ʻo Shanghai resin factory i ka ʻaila kiʻekiʻe diffusion diffusion pump, ʻelua ʻāpana lumi lumi vulcanized silicone rubber, phenyl methyl silicone oil a pēlā aku, i pāpā ʻia e nā ʻāina ʻē.Ua lilo ʻo Shanghai resin factory i hale hana piha e hiki ke hana i nā ʻano huahana silicone ma Kina.ʻOiai i ka makahiki 1992, ma muli o ka hoʻoponopono ʻana o ka hoʻolālā ʻoihana ma Shanghai, ua haʻalele ka hale hana resin o Shanghai i ka hana ʻana o ka methyl chlorosilane a me nā monomers ʻē aʻe, a kūʻai aku i nā monomers a me nā mea waena e hana i nā huahana o lalo.Eia nō naʻe, he hāʻawi indelible ʻo Shanghai resin factory i ka hoʻomohala ʻana i nā monomers organosilicon a me nā mea polymer organosilicon ma Kina.