Ko te paura putty he mea hanga nui mai i ngā matū hanga kiriata (ngā rauemi here), ngā whakakī, ngā kaihoko pupuri wai, ngā kaiwhakamātotoru, ngā kaiwhakakore pahuka, me ētahi atu. Ko ngā rauemi matū waro noa i roto i te paura putty ko: te cellulose, te māngaro kua whakakīia ki mua i te gelatin, te māngaro ether, te waipiro polyvinyl, te paura rapa marara, me ētahi atu. Kei raro nei, ka tātarihia e Polycat te mahi me te whakamahinga o ngā rauemi matū maha māu, takitahi.
muka:
Ko te muka (US: Fiber; Ingarihi: Fiber) e pā ana ki tētahi matū i hangaia mai i ngā miro tonu, kore tonu rānei. Pērā i te muka tipu, te huruhuru kararehe, te muka hiraka, te muka hangai, me ētahi atu.
Te pūtaurohi:
He polysaccharide macromolecular te cellulose he mea tito mai i te glucose, ā, koinei te wāhanga hanganga matua o ngā pakitara pūtau tipu. I te pāmahana rūma, kāore te cellulose e wairewa i roto i te wai, i roto rānei i ngā whakarewa rauropi noa. Tata ki te 100% te nui o te cellulose i roto i te miro, ā, koinei te puna tūturu parakore o te cellulose. I roto i te rakau whānui, ko te cellulose te 40-50%, ā, he 10-30% te hemicellulose me te 20-30% te lignin.
Te rerekētanga i waenga i te cellulose (matau) me te māngaro (maui):
I te nuinga o te wā, he polysaccharides macromolecular te māngaro me te cellulose, ā, ka taea te whakaatu i te tātai ngota hei (C6H10O5) n. He nui ake te taumaha ngota o te cellulose i te taumaha ngota o te māngaro, ā, ka taea te wetewete i te cellulose hei hanga māngaro. Ko te cellulose he D-glucose me te β-1,4 glycoside. Ko ngā polysaccharides macromolecular he mea hanga mai i ngā hononga, ko te māngaro ia he mea hanga mai i ngā hononga α-1,4 glycosidic. Ko te cellulose te tikanga kāore i te peka, engari ko te māngaro he peka mai i ngā hononga 1,6 glycosidic. He ngoikore te wairewa o te cellulose ki te wai, ko te māngaro ia he wairewa ki te wai wera. Kāore te cellulose e pāngia e te amylase, ā, kāore e kikorangi ina pāngia ki te iodine.
Etera Cellulose:
Ko te ingoa Ingarihi ote etera celluloseKo te cellulose ether, he pūhui polymer me te hanganga ether i hangaia mai i te cellulose. Ko te hua o te tauhohenga matū o te cellulose (tipu) me te kaihoko etherification. E ai ki te whakarōpūtanga hanganga matū o te whakakapinga i muri i te etherification, ka taea te wehewehe ki ngā ether anionic, cationic me te nonionic. I runga i te kaihoko etherification e whakamahia ana, kei reira te methyl cellulose, te hydroxyethyl methyl cellulose, te carboxymethyl cellulose, te ethyl cellulose, te benzyl cellulose, te hydroxyethyl cellulose, te hydroxypropyl methyl cellulose, te cyanoethyl cellulose, te benzyl cyanoethyl cellulose, te carboxymethyl hydroxyethyl cellulose me te phenyl cellulose, me ētahi atu. I roto i te umanga hanga, ka kiia hoki te cellulose ether ko te cellulose, he ingoa koretake, ā, ka kiia tika ko te cellulose (ether rānei).
Tikanga Whakamātotoru o te Whakamātotoru Cellulose Ether:
Ko ngā whakamātotoru cellulose ether he whakamātotoru kore-ionic e whakamātotoru ana mā te makuku me te hononga i waenga i ngā ngota.
He ngāwari te mekameka pūmua o te cellulose ether ki te hanga i te here hauwai ki te wai i roto i te wai, ā, mā te here hauwai ka nui te makuku me te hononga i waenga i ngā ngota ngota.
Ina tete etera celluloseKi te tāpirihia he whakamātotoru ki te peita rapa, ka mimitihia he nui te wai, ka nui haere te rahinga o tōna ake rōrahi, ka whakaitihia te wāhi wātea mō ngā tae, ngā whakakī me ngā matūriki rapa;
I taua wā anō, ka honoa ngā mekameka ngota ngota cellulose ether hei hanga i tētahi hanganga whatunga toru-ahu, ā, ka karapotia ngā tae, ngā whakakī me ngā matūriki rapa i waenganui o te mata, ā, kāore e taea te rere noa.
I raro i ēnei pānga e rua, ka pai ake te matotoru o te pūnaha! I tutuki te pānga matotoru i hiahiatia!
Wā tuku: 28 Paenga-whāwhā 2024