ʻO ka pauka Putty ka mea nui i hana ʻia me nā mea hana kiʻiʻoniʻoni (nā mea hoʻopili), nā mea hoʻopihapiha, nā mea paʻa wai, nā mea mānoanoa, nā mea hoʻohemo i ka foam, a pēlā aku. ʻO nā mea maka kemika organik maʻamau i loko o ka pauka putty e komo pū me: cellulose, starch pregelatinized, starch ether, polyvinyl alcohol, dispersible latex powder, a pēlā aku. Ma lalo nei, e kālailai ʻo Polycat i ka hana a me ka hoʻohana ʻana i nā mea maka kemika like ʻole no ʻoe pākahi.
ʻO ke olonā:
ʻO ke olonā (US: Fiber; Pelekania: Fiber) e pili ana i kahi mea i hana ʻia me nā filaments hoʻomau a hoʻomau ʻole paha. E like me ke olonā mea kanu, ka lauoho holoholona, ke olonā silika, ke olonā synthetic, a pēlā aku.
Kelulose:
He polysaccharide macromolecular ka Cellulose i haku ʻia me ka glucose a ʻo ia ke ʻano nui o nā paia o nā cell mea kanu. I ka mahana o ka lumi, ʻaʻole hiki ke hoʻoheheʻe ʻia ka cellulose i ka wai a i ʻole i nā mea hoʻoheheʻe organik maʻamau. ʻO ka nui o ka cellulose o ka pulupulu ua kokoke i ka 100%, e lilo ia i kumu kūlohelohe maʻemaʻe loa o ka cellulose. I ka lāʻau maʻamau, he 40-50% ka cellulose, a he 10-30% hemicellulose a me 20-30% lignin.
ʻO ka ʻokoʻa ma waena o ka cellulose (ʻākau) a me ka starch (hema):
Ma ke ʻano laulā, ʻo ka starch a me ka cellulose he macromolecular polysaccharides, a hiki ke hōʻike ʻia ke ʻano molekala e like me (C6H10O5) n. ʻOi aku ka nui o ke kaumaha molekala o ka cellulose ma mua o ka starch, a hiki ke hoʻokaʻawale ʻia ka cellulose e hana i ka starch. ʻO ka Cellulose he D-glucose a me β-1,4 glycoside Macromolecular polysaccharides i haku ʻia me nā pilina, ʻoiai ua hoʻokumu ʻia ka starch e nā pilina α-1,4 glycosidic. ʻAʻole lālā ka Cellulose ma ke ʻano maʻamau, akā ua lālā ka starch e nā pilina 1,6 glycosidic. ʻAʻole hiki ke hoʻoheheʻe ʻia ka Cellulose i ka wai, ʻoiai ua hiki ke hoʻoheheʻe ʻia ka starch i ka wai wela. ʻAʻole ʻike ka Cellulose i ka amylase a ʻaʻole e polū ke hōʻike ʻia i ka iodine.
ʻEtera Cellulose:
ʻO ka inoa Pelekania oʻEtera celluloseʻO ka cellulose ether, he hui polymer me ke ʻano ether i hana ʻia me ka cellulose. ʻO ia ka huahana o ka hopena kemika o ka cellulose (mea kanu) me ka mea etherification. Wahi a ka hoʻokaʻawale ʻana o ke ʻano kemika o ka substituent ma hope o ka etherification, hiki ke hoʻokaʻawale ʻia i nā anionic, cationic a me nonionic ethers. Ma muli o ka mea etherification i hoʻohana ʻia, aia nā methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxymethyl hydroxyethyl cellulose a me phenyl cellulose, a pēlā aku. I ka ʻoihana kūkulu hale, ua kapa ʻia ʻo cellulose ether he cellulose, he inoa maʻamau ʻole ia, a ua kapa pololei ʻia ʻo ia he cellulose (a i ʻole ether).
ʻAno hoʻomānoanoa o ka Cellulose Ether Thickener:
ʻO nā mea hoʻomānoanoa cellulose ether he mau mea hoʻomānoanoa non-ionic e hoʻomānoanoa nui ʻia ma o ka hydration a me ka hihia ma waena o nā molekala.
He mea maʻalahi ke kaulahao polymer o ka cellulose ether e hana i ka pilina hydrogen me ka wai i loko o ka wai, a ʻo ka pilina hydrogen e loaʻa ai ka hydration kiʻekiʻe a me ka inter-molecular entanglement.
I ka wāʻEtera celluloseHoʻohui ʻia ka mea hoʻomānoanoa i ka pena latex, hoʻopili ia i ka nui o ka wai, e hoʻonui nui ana i kona nui ponoʻī, e hōʻemi ana i kahi kūʻokoʻa no nā pigments, nā mea hoʻopihapiha a me nā ʻāpana latex;
I ka manawa like, ua hoʻopili ʻia nā kaulahao molekala cellulose ether e hana i kahi ʻano pūnaewele ʻekolu-dimensional, a ua hoʻopuni ʻia nā pigments, nā mea hoʻopihapiha a me nā ʻāpana latex i waenakonu o ka mesh a ʻaʻole hiki ke kahe manuahi.
Ma lalo o kēia mau hopena ʻelua, ua hoʻomaikaʻi ʻia ka mānoanoa o ka ʻōnaehana! Ua hoʻokō ʻia ka hopena mānoanoa a mākou i makemake ai!
Ka manawa hoʻouna: ʻApelila-28-2024