Kua noho ko ngā hiri silicone hei whiringa tuatahi mā ngā tohunga me ngā kaihanga DIY ina tae mai ki te hiri i ngā momo mata. He tino pai ngā āhuatanga piri me te maha o ngā whakamahinga o ngā hiri silicone, ā, he roa te mau mō ngā momo whakamahinga. I roto i ngā momo hiri silicone e hokona ana i te mākete, ko ngā hiri silicone alkoxy me ngā hiri silicone acetoxy ētahi momo rongonui e rua. I roto i tēnei purongo, ka tirohia e mātou ngā āhuatanga o ēnei hiri, ō rātou painga me ō rātou ngoikoretanga, ā, ka āwhina i a koe ki te whakatau i te kōwhiringa pai rawa atu mō ō hiahia.
1. Ngā rerekētanga hanganga:
Tuatahi, me tūhura tātou i te rerekētanga hanganga i waenga i te alkoxy me te acetoxy. Ko te rōpū alkoxy he mea hanga mai i te rōpū alkyl (R-) e herea ana ki te ngota hāora (-O-). Ko te tikanga, he huinga o te rōpū alkyl me te hāora.
I tētahi atu āhuatanga, i ahu mai te acetoxy i te waikawa acetic. Kei roto ko te rōpū acetyl (CH3CO-) e herea ana ki te ngota hāora (-O-). Nō reira, ka taea te kī ko te acetoxy he rōpū alkyl kua whakakapia ki te hāora i roto i te wāhanga acetyl.
Nā te rerekētanga o te hanganga ka rerekē ngā āhuatanga matū me te tauhohenga i waenga i ngā rōpū alkoxy me ngā rōpū acetoxy. Hei rōpū mahi aliphatic, he āhua nucleophilic te alkoxy, ā, i ētahi wā ka mahi hei rōpū wehe. Ko te nuinga o tēnei whanonga e whakawhirinaki ana ki te tuakiri me ngā whakakapinga o te rōpū alkyl e piri ana ki te ngota hāora. Nā te mea he koretake ngā rōpū alkoxy, me whai electrophile kaha, he catalyst rānei hei tīmata i te tauhohenga.
He rerekē, he rerekē te tauhohenga o ngā rōpū acetoxy nā te noho mai o ngā rōpū acetyl. Ka whai wāhi te wāhanga acetyl me tōna waro pai wāhanga ki te āhua electrophilic o te rōpū acetoxy. Nō reira, ka whai wāhi kaha te rōpū acetoxy ki te tauhohenga acetylation, ka whakawhiti i te wāhanga acetyl ki ētahi atu ngota. He whānui ngā tauhohenga acetylation i roto i te hanganga o ngā rongoā, ngā hua taiao me ngā momo matū waro.
2. Ngā hiri silicone Alkoxy: Te tuku i ngā āheinga hou
Ko ngā hiri silicone Alkoxy he hiri motuhake i hangaia i runga i te hangarau whakamaroke alkoxy. E mōhiotia ana ēnei hiri mō ō rātou āhuatanga piri pai ki ngā momo papa, tae atu ki te karāhe, te uku, me ētahi kirihou. Ko tō rātou kaha ki te tu atungā pāmahana teiteimeātete ki te hihi UVkoinei te kōwhiringa tuatahi mō ngā mahi o waho. Hei tāpiri, he tino pai ngā hiri silicone alkoxylatedātete ki te huarere, kia roa ai ngā hua. Nā te meate iti o te modulusme te tino ngāwari, ka taea e rātou te whakauru i ngā nekehanga hononga, kia pai ai mō ngā tono hihiri. Ko tētahi painga nui o ngā hiri silicone alkoxylated ko tā rātouiti te kakarai te wā e whakamaroke ana, e māmā ake ai te whakamahi i ngā wāhi kati.
3. Ngā Hiri Hiraka Acetoxy: Kua Whakamātauria, kua Whakamātauria
Ko ngā hiri silicone acetoxy, i tētahi atu taha, e whakawhirinaki ana ki te hangarau whakamaroke acetoxy. Kua whakamahia whānuitia ēnei hiri mō ngā tekau tau, ā, e mōhiotia ana mō ō rātou āhuatanga hiri maha. Ka hanga hononga kaha ki ngā rauemi hanga tino noa, tae atu ki te karāhe, te konganuku me te uku. Ko ngā āhuatanga o ngā hiri silicone acetoxy kote tere o te whakamarokeā, he tino paiātete ki te makukuMā te tere o te whakaora ka tere, ka māmā hoki ngā mahi. Heoi, kia mōhio koe, ka puta he haunga rite ki te winika i ngā hiri silicone acetoxy i a rātou e whakamaroke ana, nō reira he mea nui te hauhautanga tika.
4. Kōwhiria te hiri silicone tika
He mea nui te mārama ki ngā āhuatanga ahurei o ia momo hiri silicone hei whakatau whai whakaaro. Me whai whakaaro ki ngā āhuatanga pēnei i te kaha o te here, te kaha ki te here, te wā e ora ai, te ngāwari, te haunga me ngā whakaritenga kaupapa motuhake. Ki te mea he mea nui te ātete ki ngā hihi UV, te pāmahana tino nui me te huarere o waho, he pai ake ngā hiri silicone alkoxylated. He tere te ora o ngā hiri silicone acetoxy, ā, he kōwhiringa pai mō ngā kaupapa e hiahia ana ki te wā huri tere me te hononga tīmatanga kaha. Waihoki, he mea tika kia mōhio kei te wātea ngā momo hiri e rua i roto i ngā tae maha, e whakarato ana i ngā kōwhiringa ataahua mō ngā tono e hiahia ana ki te whakaotinga ataahua.
Whakamutunga
Ka tukuna ngātahitia ngā painga ahurei o ngā hiri silicone alkoxy me acetoxy i runga i ngā whakaritenga kaupapa motuhake. Ko te whakatau whakamutunga ka whakawhirinaki ki ngā āhuatanga piri, te wā e maroke ai, te ngāwari, te kakara me ngā āhuatanga taiao. I runga i ngā mōhiohio e whakaaturia ana i roto i tēnei purongo, ka taea e koe te whiriwhiri māia i te hiri silicone e pai ana mō ō hiahia.
Wā tuku: Hurae-26-2023