He mea nui te mahi a ngā tāpiringa ki te whakapai ake i te mahi hanga moata maroke-ranu. E whai ake nei ka tātarihia, ka whakatauritehia hoki ngā āhuatanga taketake o te paura rapa me te cellulose, ā, ka tātarihia hoki te mahi a ngā hua moata maroke-ranu mā te whakamahi i ngā tāpiringa.
Paura rapa ka taea te whakamarara anō
Paura rapa ka taea te whakamarara anōKa tukatukahia mā te whakamaroke rehu i te whakamomona polymer motuhake. Ko te paura rapa maroke he matūriki porowhita o te 80 ~ 100mm te rahi kua huihuia. Ka wairewa ēnei matūriki ki te wai, ā, ka hanga he marara pumau he nui ake i ngā matūriki whakamomona taketake, ka hanga he kiriata i muri i te maroke me te whakamaroke.
Mā ngā momo whakarerekētanga rerekē ka rerekē ngā āhuatanga o te paura rapa ka taea te whakamarara anō, pērā i te ātete ki te wai, te ātete ki te kawakore, te ātete ki te huarere me te ngāwari. Ka taea e te paura rapa e whakamahia ana i roto i te moata te whakapai ake i te ātete ki te pānga, te roa, te ātete ki te kakahu, te ngāwari o te hanga, te kaha piri me te piripono, te ātete ki te huarere, te ātete ki te huka-rewa, te ātete ki te wai, te kaha piko me te kaha piko o te moata.
Etera cellulose
Ko te cellulose ether he kupu whānui mō te raupapa o ngā hua i puta mai i te tauhohenga o te cellulose alkali me te kaihoko etherifying i raro i ētahi tikanga. Ka whakakapia te cellulose alkali ki ngā kaihoko etherifying rerekē hei whiwhi i ngā cellulose ether rerekē. E ai ki ngā āhuatanga ionization o ngā whakakapinga, ka taea te wehewehe i ngā cellulose ether ki ngā wāhanga e rua: ionic (pēnei i te carboxymethyl cellulose) me te kore-ionic (pēnei i te methyl cellulose). E ai ki te momo whakakapinga, ka taea te wehewehe i te cellulose ether ki te monoether (pēnei i te methyl cellulose) me te ether whakauru (pēnei i te hydroxypropyl methyl cellulose). E ai ki ngā rerekētanga o te wairewatanga, ka taea te wehewehe ki te wairewa-wai (pēnei i te hydroxyethyl cellulose) me te wairewa-whakarewa waro (pēnei i te ethyl cellulose), me ētahi atu. Ko te moata maroke-ranu he cellulose wairewa-wai te nuinga, ā, ko te cellulose wairewa-wai ka wehea ki te momo tere me te momo wairewa whakaroa kua tukatukahia ki te mata.
Ko te tikanga mahi a te cellulose ether i roto i te moata penei:
(1) I muri i tete etera celluloseI roto i te moata ka rewa ki te wai, ka whakaritehia te tohatoha whai hua me te ōrite o te rauemi sima i roto i te pūnaha nā te mahi o te mata, ā, ka "takai" te cellulose ether, hei colloid tiaki, i ngā matūriki totoka, ā, ka hangaia he paparanga kiriata hinu ki tōna mata o waho, ka pai ake te pumau o te pūnaha moata, ā, ka whakapai ake hoki i te rere o te moata i te wā e whakaranua ana me te maeneene o te hanganga.
(2) Nā tōna ake hanganga ngota, ka kore e ngawari te ngaro o te wai i roto i te moata e te wai cellulose ether, ā, ka tukuna mārire i roto i te wā roa, ka pai te pupuri wai me te ngāwari o te mahi a te moata.
muka rakau
He mea hanga te muka rakau i ngā tipu hei rauemi mata matua, ā, he maha ngā hangarau e tukatukahia ana, ā, he rerekē tōna mahi i tērā o te cellulose ether. Ko ngā āhuatanga matua ko:
(1) Kāore e rewa i roto i te wai me ngā whakarewa, ā, kāore hoki e rewa i roto i ngā otinga waikawa ngoikore me ngā otinga turanga ngoikore
(2) Ki te whakamahia ki te moata, ka taupatupatu ki roto i tētahi hanganga toru-ahu i roto i te āhua tūmau, ka whakanui ake i te ātete thixotropy me te totoro o te moata, ā, ka whakapai ake i te āheinga hanga.
(3) Nā te hanganga toru-ahu o te muka rakau, he āhuatanga tōna ki te "maukati-wai" i roto i te moata whakaranu, ā, e kore e ngāwari te mimiti, te tango rānei i te wai i roto i te moata. Engari kāore i te nui te pupuri wai o te cellulose ether.
(4) Ko te pānga pai o te muka rakau ki te "kawe wai" i roto i te moata, ka rite tonu te makuku o te mata me te roto o te moata, ā, ka whakaitihia ngā kapiti i puta mai i te whakahekenga koretake.
(5) Ka taea e te muka rakau te whakaiti i te ahotea whakarerekētanga o te moata kua whakapakeketia, me te whakaiti i te mimiti me te ngatata o te moata.
Wā tuku: Paenga-whāwhā-25-2024