Ko te Hydroxypropyl methylcellulose, e mōhiotia ana ko te HPMC, he ether cellulose kore-ionic i tangohia mai i te miro kua parakoretia, he rauemi polymer tūturu, mā roto i te raupapa o ngā tukanga matū. He paura mā, he paura kōwhai paku rānei, he ngāwari ki te wairewa i roto i te wai. Me kōrero tātou mō te tikanga whakarewa o te hydroxypropyl methylcellulose.
1. Ko te Hydroxypropyl methylcellulose te nuinga o te wā e whakamahia ana hei tāpiri mō te paura putty, te moata me te kāpia. Ina tāpirihia ki te moata sima, ka taea te whakamahi hei mea pupuri wai me te aukati hei whakanui ake i te kaha o te papu; ina tāpirihia ki te paura putty me te kāpia, ka taea te whakamahi hei here. Hei whakapai ake i te kaha o te horapa me te whakaroa i te wā mahi, ka tangohia e mātou te Qingquan Cellulose hei tauira hei whakamārama i te tikanga whakarewa o te hydroxypropyl methylcellulose.
2. Ka whakaohokia te hydroxypropyl methylcellulose noa, ka whakamararatia ki te wai wera, kātahi ka tāpirihia ki te wai matao, ka whakaohokia, ka whakamatao kia memeha;
Hei tauira: tangohia te 1/5-1/3 o te nui o te wai wera e hiahiatia ana, whakaohokia kia pupuhi rawa te hua, kātahi ka tāpirihia te toenga o te wai wera, he wai matao, he wai hukapapa rānei, ka whakaohokia kia tae ki te pāmahana e tika ana (10°C) kia memeha rawa.
3. Tikanga whakamakuku whakarewa waro:
Horahia te hydroxypropyl methylcellulose ki roto i tētahi whakarewa waro, whakamakuku rānei ki tētahi whakarewa waro, kātahi ka tāpirihia, ka tāpirihia rānei he wai matao kia pai ai te rewa. Ko te whakarewa waro ka taea te ethanol, te ethylene glycol, me ētahi atu.
4. Mena ka puta he whakakotahitanga, he takai rānei i te wā e whakarewahia ana, nā te mea kāore i te rawaka te whakaoho, nā te mea rānei kua tāpirihia tika te tauira noa ki te wai matao. I tēnei wā, whakaohokia kia tere.
5. Mena ka puta he mirumiru i te wā e whakarewahia ana, ka taea te waiho mō ngā haora 2-12 (ko te wā motuhake e whakawhirinaki ana ki te matotoru o te wairewa) ka taea rānei te tango mā te mimiti, te pēhi, me ētahi atu, te tāpiri rānei i te nui e tika ana o te kaihoko whakakore huka.
Ngā Whakatūpato
Kua wehea te hydroxypropyl methylcellulose ki ngā momo memeha puhoi me ngā momo memeha tere. Ka taea te memeha tika i te hydroxypropyl methylcellulose tere ki te wai matao.
Te wā tuku: Hui-tanguru-06-2024