Ko te paura Putty te nuinga o nga matū hanga kiriata (matea here), whakakiia, wai pupuri wai, thickeners, defoamers, me etahi atu.
muka:
Ko te muka (US: Fiber; English: Fiber) e tohu ana ki tetahi matū i hanga mai i nga kakawaea mau tonu, korekore ranei. Pērā i te muka tipu, makawe kararehe, muka hiraka, muka waihanga, etc.
Cellulose:
Ko te Cellulose he polysaccharide macromolecular i titoa mai i te hukahuka me te waahanga hanga matua o nga pakitara tipu tipu. I te pāmahana rūma, karekau te cellulose e rewa ki te wai, ki roto ranei i nga whakarewa pararopi noa. Ko te ihirangi cellulose o te miro he tata ki te 100%, ka waiho hei puna tino parakore o te cellulose. I te nuinga o te rakau, ko te cellulose te 40-50%, a he 10-30% hemicellulose me te 20-30% lignin.
Te rerekētanga i waenga i te cellulose (matau) me te māngaro (mauī):
Ko te tikanga, ko te mangaro me te cellulose he polysaccharides macromolecular, a ka taea te whakaatu i te tauira ngota hei (C6H10O5) n. He nui ake te taumaha ngota ngota o te cellulose i to te maaka, ka taea te pirau te cellulose ki te whakaputa maaka. Ko te Cellulose he D-glucose me te β-1,4 glycoside Macromolecular polysaccharides i tito mai i nga here, i te mea ko te maaka ka hangaia e te α-1,4 glycosidic here. Ko te Cellulose i te nuinga o te waa kaore i te manga, engari ka peka te maaka e 1,6 nga here glycosidic. Ko te Cellulose he ngoikore te wairewa i roto i te wai, ko te maaka ka memeha ki te wai wera. Ko te Cellulose he koretake ki te amylase, karekau e puru ina pa ana ki te iodine.
Etera Cellulose:
Ko te ingoa pakeha oether celluloseko te cellulose ether, he pūhui polymer me te hanganga ether i hangaia ki te cellulose. Ko te hua o te tauhohenga matū o te cellulose (tipu) me te kaihoko whakaea. E ai ki te whakarōpūtanga hanganga matū o te whakakapinga i muri i te etherification, ka taea te wehewehe ki nga ethers anionic, cationic me te nonionic. I runga i te kaihoko etherification e whakamahia ana, he methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, te ahumahi cellulose in carboxymethyl cellulose me te etcylphenyllose. Ko te cellulose ether ka kiia ko te cellulose, he ingoa koretake, a ka tika te kiia ko te cellulose (he ether ranei).
Tikanga Whakamatotoru o te Whakamatotoru Etera Cellulose:
Ko nga katote eter cellulose he katote-kore e whakapakeke ana na roto i te whakamaaramatanga me te urunga i waenga i nga ngota ngota.
Ko te mekameka polymer o te cellulose ether he ngawari ki te hanga i te here hauwai ki te wai i roto i te wai, a na te here hauwai e nui ai te wai me te weriweri i waenga i nga ngota.
Ina teether celluloseka taapirihia te whakamaarata ki te peita taherapa, ka mimiti i te wai nui, ka nui ake te rahi o tana ake rōrahi, ka whakaiti i te waahi koreutu mo nga poaka, whakakii me nga matūriki taherapa;
I te wa ano, ko nga mekameka ngota ether cellulose e hono ana ki te hanga i te hanganga whatunga e toru-ahu, a ko nga poaka, nga whakakii me nga matūriki latex e karapotia ana i waenganui o te mata, kaore e taea te rere noa.
I raro i enei paanga e rua, ka pai ake te pokey o te punaha! Kua tutuki i a maatau te whakamaaramatanga!
Te wa tuku: Apr-28-2024