Ko te tukanga whakapūpū o ngā etera cellulose he maha ngā taahiraa o te tango i te cellulose mai i te rauemi mata, ā, muri iho ka whakarerekētia hei etera cellulose. He maha ngā whakamahinga o ngā etera cellulose, ā, he maha ngā whakamahinga i roto i ngā momo ahumahi, tae atu ki ngā rongoā, te kai, ngā kakahu me te hanga. He mea nui te tukanga whakapūpū hei whiwhi i te cellulose kounga teitei, te rauemi mata mō te hanga i ngā etera cellulose. Anei tētahi whakamārama taipitopito mō te tukanga whakapūpū o te etera cellulose:
1. Kōwhiringa rauemi mata:
Ka tīmata te tukanga hanga penupenu mā te whiriwhiri i ngā rauemi mata kei roto te cellulose. Ko ngā pūtake noa ko te rakau, te miro, me ētahi atu muka tipu. Ko te whiriwhiri i ngā rauemi mata e whakawhirinaki ana ki ngā āhuatanga pēnei i te wātea o te cellulose ether, te utu me ngā āhuatanga e hiahiatia ana.
2. Tikanga hanga penupenu:
He maha ngā tikanga mō te penupenu cellulose, tae atu ki te penupenu matū me te penupenu ā-ringa.
3. Te whakapūpū matū:
Te hanga penupenu kraft: Ko te mahi he rongoā i ngā maramara rakau ki te ranunga o te hauwai konutai me te whanariki konutai. Ka whakarewahia e tēnei tukanga te lignin, ka waiho ko ngā muka cellulosic.
Te whakapūkara whanariki: Te whakamahi i te waikawa whanariki, te bisulfite rānei hei wawahi i te lignin i roto i te rauemi kai.
Te whakapūpū i te whakarewa waro: Te whakamahi i ngā whakarewa waro pēnei i te etanoru, te methanol rānei hei whakarewa i te lignin me te wehe i ngā muka cellulose.
4. Te whakapūpū ā-ringa:
Te huri i te rakau mā te kōhatu: Ko te huri i te rakau i waenga i ngā kōhatu hei wehe i ngā muka mā te mīhini.
Te Whakapūpū Ā-Mīhini a te Kaiwhakapaipai: Ka whakamahia te kaha ā-mīhini hei wehe i ngā muka mā te whakapūpū i ngā maramara rakau.
5. Te whakama:
I muri i te whakapūpūtanga, ka whakamā te cellulose hei tango i ngā poke me te tae. Ka taea te whakamahi i te chlorine, te chlorine dioxide, te hauwai peroxide, te hāora rānei i te wā whakamā.
5.. Te whakarerekētanga o te cellulose:
I muri i te purenga, ka whakarerekētia te cellulose hei whakaputa i ngā ether cellulose. Ko ngā tikanga noa ko te etherification, te esterification me ētahi atu tauhohenga matū hei whakarerekē i ngā āhuatanga ā-tinana me te matū o te cellulose.
6. Te tukanga whakapūmau:
Te Whakapūngao: Te rongoā i te cellulose ki te kawakore (te nuinga o te wā he hauwai konutai) hei whakaputa i te cellulose kawakore.
Te tāpiri i ngā kaihoko etherifying: Ka tauhohe te cellulose kawakore ki ngā kaihoko etherifying (pērā i ngā alkyl halides, i ngā alkylene oxides rānei) hei whakauru i ngā rōpū ether ki roto i te hanganga cellulose.
Whakakore: Whakakorea te ranunga tauhohenga hei whakamutu i te tauhohenga, hei whiwhi hoki i te hua cellulose ether e hiahiatia ana.
7. Te horoi me te whakamaroke:
Ka horoia te hua cellulose ether hei tango i ngā hua taha me ngā poke. I muri i te horoinga, ka whakamarokehia te rauemi kia eke ki te nui o te makuku e hiahiatia ana.
8. Te huri me te tātari:
Ka taea te huri i ngā etera cellulose maroke kia whiwhi ai i ngā rahi matūriki motuhake. Ka whakamahia te tātari hei wehe i ngā matūriki o te rahi e hiahiatia ana.
8. Te whakahaere kounga:
Ka whakatinanahia ngā mahi whakahaere kounga hei whakarite kia tutuki ngā etera cellulose i ngā paerewa kua tohua. Kei roto i tēnei ko te whakamātautau i te matotoru, te nui o te whakakapinga, te nui o te makuku me ētahi atu tawhā e tika ana.
9. Te tākai me te tuku:
Ka tākaihia te hua cellulose ether whakamutunga, ka tohatohahia ki ngā momo ahumahi. Mā te tākai tika ka mau tonu te kounga o te hua i te wā e rongoatia ana, e kawehia ana hoki.
He raupapa uaua o ngā mahi te tukanga penupenu o te cellulose ether, e uru ana ki te whiriwhiri rauemi mata, te tikanga penupenu, te whakama, te whakarerekētanga cellulose, te whakaeneene, te horoi, te whakamaroke, te huri me te whakahaere kounga. He mea nui ia mahi hei whakatau i te kounga me ngā āhuatanga o te cellulose ether i hangaia, kia pai ai mō te whānuitanga o ngā tono. Kei te whakapai tonu ngā whanaketanga hangarau me te arotau i ēnei mahi hei whakanui ake i te whai huatanga me te pumau o te hanga cellulose ether.
Wā tuku: Hanuere-15-2024