He aha i taea ai te whakamahi whānuitia i te silicone wai i roto i ngā mara maha?

1.Whakaurunga o te rapa silicone wai me te whakakoi tāpiri

Ko te rapa silicone wai me te tāpiritanga o te whakakoi he mea hanga mai i te vinyl polysiloxane hei pūmua taketake, polysiloxane me te hononga Si-H hei kaihoko hononga whakawhiti, i te aroaro o te whakakorikori konukawata, i te pāmahana rūma, i te whakamahana rānei i raro i te whakakoi hononga whakawhiti o tētahi momo rauemi silicone. He rerekē i te rapa silicone wai kua whakakōkīhia, kāore te tukanga whakakoi silicone wai e whakaputa hua taha, he iti te whakahekenga, he hohonu te whakakoi, ā, kāore he waikura o te rauemi pa. He painga ōna ko te whānuitanga pāmahana whānui, he ātete matū pai me te ātete huarere, ā, ka taea te piri ngāwari ki ngā mata rerekē. Nō reira, ki te whakaritea ki te silicone wai kua whakakōkīhia, he tere ake te whanaketanga o te whakakoi silicone wai. I tēnei wā, kua nui haere te whakamahinga i roto i ngā taputapu hiko, mīhini, hanga, hauora, motuka me ētahi atu mara.

2. Ngā Wāhanga Matua

Pūmua Turanga

Ko ngā vinyl raina e rua e whai ake nei kei roto ko te polysiloxane, e whakamahia ana hei pūmua turanga mō te tāpiri i te silicone wai. He whānui te tohatoha o tō rātou taumaha ngota, mai i ngā mano ki te 100,000-200,000. Ko te pūmua turanga e whakamahia whānuitia ana mō te silicone wai tāpiri ko te α,ω -divinylpolydimethylsiloxane. I kitea ko te taumaha ngota me te ihirangi vinyl o ngā pūmua taketake ka taea te whakarerekē i ngā āhuatanga o te silicone wai.

kaihoko hononga-whakawhiti

Ko te kaihoko honohono e whakamahia ana mō te tāpiri i te silicone wai whakarewa ko te polysiloxane waro kei roto neke atu i te 3 ngā here Si-H i roto i te ngota, pērā i te methyl-hydropolysiloxane rārangi kei roto te rōpū Si-H, te mowhiti methyl-hydropolysiloxane me te kapia MQ kei roto te rōpū Si-H. Ko ngā mea e whakamahia whānuitia ana ko te methylhydropolysiloxane rārangi o te hanganga e whai ake nei. I kitea ka taea te whakarerekē i ngā āhuatanga hangarau o te silica gel mā te whakarerekē i te ihirangi hauwai, te hanganga rānei o te kaihoko honohono. I kitea ko te ihirangi hauwai o te kaihoko honohono he rite ki te kaha kume me te pakeke o te silica gel. I whiwhi a Gu Zhuojiang me ētahi atu i te hinu silicone kei roto te hauwai me te hanganga rerekē, te taumaha ngota rerekē me te ihirangi hauwai rerekē mā te whakarerekē i te tukanga hanga me te tātai, ā, i whakamahia hei kaihoko honohono hei hanga me te tāpiri i te silicone wai.

whakakorikori

Hei whakapai ake i te whai huatanga o ngā whakaterenga, i whakaritea ngā matatini platinum-vinyl siloxane, ngā matatini platinum-alkyne me ngā matatini platinum kua whakarerekētia e te hauota. Haunga te momo whakaterenga, ka pāngia hoki te mahi e te nui o ngā hua silicone wai. I kitea ko te whakanui ake i te kukū o te whakaterenga platinum ka taea te whakatairanga i te tauhohenga hononga-whiti i waenga i ngā rōpū methyl me te aukati i te pirau o te mekameka matua.

E ai ki te kōrero i runga ake nei, ko te tikanga whakamomona o te silicone wai tāpiri tuku iho ko te tauhohenga hydrosilylation i waenga i te vinyl turanga kei roto te polymer me te here hydrosilylation kei roto te polymer. Ko te tikanga, me whakamahi te pokepokea pakari mō te hanga i te hua whakamutunga mō te hanga silicone wai tuku iho, engari he ngoikoretanga tēnei hangarau hanga tuku iho, arā, he utu nui, he roa te wā, me ērā atu. He maha ngā wā kāore e pā ngā hua ki ngā hua hiko. I kitea e ngā kairangahau ka taea te whakarite i tētahi raupapa o ngā silica me ngā āhuatanga pai ake mā roto i ngā tikanga whakamaroke hou mā te whakamahi i te mercaptan – te tāpiritanga hononga takirua o ngā silica wai. Ko ōna āhuatanga miihini pai rawa atu, te pumau wera me te tuku māramatanga ka taea te whakamahi i roto i ngā mara hou ake. I runga i te tauhohenga hononga mercapto-ene i waenga i te polysiloxane mahi mercaptan peka me te polysiloxane vinyl kua mutu me te taumaha ngota rerekē, i whakaritea ngā elastomers silicone me te pakeke whakarerekē me ngā āhuatanga miihini. Ko ngā elastomers tā e whakaatu ana i te taumira tā teitei me ngā āhuatanga miihini pai rawa atu. Ka taea e te roa o te wehenga o ngā elastomers silicone te eke ki te 1400%, he nui ake tēnei i ngā elastomers UV-curing kua pūrongohia, ā, he teitei ake anō hoki i ngā elastomers silicone-curing wera tino totoro. Kātahi ka whakamahia ngā elastomers silicone tino totoro ki ngā hydrogels kua pania ki ngā nanotubes waro hei whakarite i ngā taputapu hiko totoro. He whānui ngā tono a te silicone ka taea te tā me te tukatuka i roto i ngā karetao ngohengohe, ngā actuators ngāwari, ngā implants hauora me ētahi atu mara.