Ko te Hydroxyethyl Cellulose (HEC) he pūmua wai-rewa kore-ionic e whakamahia whānuitia ana i roto i ngā paninga, ngā mea whakapaipai, ngā rongoā, te kai, te hanga pepa, te keri hinu me ētahi atu mara ahumahi. He matū cellulose ether i whiwhihia mā te etherification o te cellulose, e whakakapia ai e te hydroxyethyl tetahi wāhanga o ngā rōpū hydroxyl o te cellulose. Nā ngā āhuatanga ā-tinana me te matū o te hydroxyethyl cellulose e hanga ana i tētahi o ngā wāhanga nui o ngā whakamātotoru, ngā kaihoko whakapūmau, ngā emulsifier me ngā whakaū.
Te pūmahana kohua o te hydroxyethyl cellulose
He pūhui ngota teitei te Hydroxyethyl cellulose, he nui te taumaha ngota, ā, he uaua te whakatau i tōna ira kohua motuhake pērā i ngā pūhui ngota iti. I roto i ngā mahi whaihua, kāore he ira kohua mārama o ngā rauemi ngota teitei pērā i te hydroxyethyl cellulose. Ko te take he pirau aua matū i te wā e whakamahana ana, kaua e huri tika mai i te wai ki te hau mā te huringa āhuahanga pērā i ngā matū ngota iti noa. Nō reira, kāore e tika te ariā o te "ira kohua" o te hydroxyethyl cellulose.
I te nuinga o te wā, ina werahia te hydroxyethyl cellulose i te pāmahana teitei, ka rewa tuatahi ki te wai, ki te whakarewa rauropi rānei hei hanga i te otinga colloidal, kātahi ka tīmata te pakaru o te mekameka polymer i te pāmahana teitei ake, ā, i te mutunga ka pirau i roto i te wera, ka tukuna ngā ngota iti pēnei i te wai, te hauhā waro me ētahi atu matū pupuhi me te kore e pā ki te tukanga kohua noa. Nō reira, kāore he ira kohua mārama o te hydroxyethyl cellulose, engari he pāmahana pirau, e rerekē ana i runga i tōna taumaha ngota me te taumata whakakapinga. I te nuinga o te wā, ko te pāmahana pirau wera o te hydroxyethyl cellulose he nui ake i te 200°C.
Te pumau wera o te hydroxyethyl cellulose
He pai te pumau matū o te Hydroxyethyl cellulose i te pāmahana rūma, ka taea te tu atu ki tētahi whānuitanga o ngā taiao waikawa me te kawakore, ā, he ātete wera anō hoki. Heoi, ina tino teitei te pāmahana, inā koa kāore he whakarewa, he mea whakaū rānei, ka tīmata te pakaru o ngā mekameka polymer nā te mahi a te wera. Kāore tēnei tukanga pirau wera e haere tahi me te kohua mārama, engari he pakaru haere o te mekameka me te tauhohenga maroke, ka tukuna ngā matū pupuhi, ā, ka mutu ka waiho ngā hua waro.
I roto i ngā mahi ahumahi, hei karo i te pirau i puta mai i te pāmahana teitei, kāore te hydroxyethyl cellulose e tukuna ki tētahi taiao e nui ake ana i tōna pāmahana pirau. Ahakoa i roto i ngā mahi pāmahana teitei (pērā i te whakamahinga o ngā wai keri hinu), ka whakamahia pinepinetia te hydroxyethyl cellulose me ētahi atu rauemi hei whakarei ake i tōna pumau wera.
Te whakamahinga o te hydroxyethyl cellulose
Ahakoa kāore he pūwāhi kohua mārama o te hydroxyethyl cellulose, nā tōna wairewatanga me ōna āhuatanga matotoru ka whakamahia whānuitia i roto i ngā ahumahi maha. Hei tauira:
Ahumahi paninga: ka taea te whakamahi i te hydroxyethyl cellulose hei whakamātotoru hei āwhina i te whakarite i te rheology o te paninga, te aukati i te ua me te whakapai ake i te whakataurite me te pumau o te paninga.
Ngā mea whakapaipai me ngā matū o ia rā: He wāhanga nui tēnei i roto i te maha o ngā hopi horoi, ngā hua tiaki kiri, ngā shampoo me ngā paraihe niho, ka taea ai te hoatu i te matotoru tika, te whakamakuku me te pumau ki te hua.
Ahumahi rongoā: I roto i ngā whakaritenga rongoā, ka whakamahia pinepine te hydroxyethyl cellulose ki te hanga papa me ngā paninga tuku-roa hei whakahaere i te tere tukunga o ngā rongoā.
Ahumahi kai: Hei whakamātotoru, hei whakaū me hei whakakōkī, ka whakamahia hoki te hydroxyethyl cellulose i roto i te kai, inā koa i roto i te aihikirīmi, te tiēre me ngā ranu.
Te keri hinu: I roto i te keri hinu, he wāhanga nui te hydroxyethyl cellulose o te wai keri, ka taea te whakanui ake i te matotoru o te wai, te whakau i te pakitara o te poka me te whakaiti i te ngaronga o te paru.
Hei rauemi pūmua, kāore he ira kohua mārama o te hydroxyethyl cellulose nā te mea ka pirau i ngā pāmahana teitei, kaua ki te āhua kohua noa. Ko tōna pāmahana pirau wera he nui ake i te 200°C, i runga i tōna taumaha ngota me te taumata whakakapinga. Heoi anō, he whānuitia te whakamahinga o te hydroxyethyl cellulose i roto i ngā paninga, ngā mea whakapaipai, ngā rongoā, ngā kai me te hinu nā te mea he pai ōna āhuatanga whakamātotoru, whakapūmau, whakaemulsifying me te whakapūmau. I roto i ēnei whakamahinga, ka karohia te nuinga o te wā kia kaua e pāngia e ngā pāmahana tino tiketike kia pai ai tōna mahi me tōna pumau.
Wā tuku: Oketopa-23-2024