ʻO ka pauka Putty ka nui o nā mea hana kiʻiʻoniʻoni (mea hoʻopaʻa paʻa), nā mea hoʻopihapiha, nā mea mālama wai, nā mānoanoa, defoamers, a me nā mea ʻē aʻe.
Uila:
ʻO ka Fiber (US: Fiber; English: Fiber) pili i kahi mea i haku ʻia me nā fila hoʻomau a ʻoki ʻole paha. E like me ka mea kanu fiber, ka lauoho holoholona, ka silk fiber, ka synthetic fiber, etc.
Cellulose:
ʻO ka Cellulose kahi polysaccharide macromolecular i haku ʻia me ka glucose a ʻo ia ka mea nui i kūkulu ʻia o nā paia o nā mea kanu. Ma ka lumi wela, ʻaʻole hiki ke hoʻoheheʻe ʻia ka cellulose i ka wai a i ʻole i nā mea hoʻoheheʻe kūlohelohe maʻamau. ʻO ka cellulose maʻiʻo o ka pulupulu kokoke i 100%, e hoʻolilo iā ia i kumu maoli maoli o cellulose. I ka lāʻau maʻamau, helu ʻia ka cellulose no 40-50%, a aia he 10-30% hemicellulose a me 20-30% lignin.
ʻO ka ʻokoʻa ma waena o ka cellulose ('ākau) a me ka starch (hema):
ʻO ka ʻōlelo maʻamau, 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 o ka cellulose ma mua o ka starch, a hiki ke hoʻoheheʻe ʻia ka cellulose e hana i ka starch. ʻO ka cellulose ka D-glucose a me ka β-1,4 glycoside Macromolecular polysaccharides i haku ʻia me nā mea paʻa, ʻoiai ka starch i hana ʻia e nā paʻa α-1,4 glycosidic. ʻAʻole lālā ʻo Cellulose, akā hoʻopili ʻia ka starch e 1,6 mau mea paʻa glycosidic. ʻAʻole hiki ke hoʻoheheʻe ʻia ka cellulose i ka wai, ʻoiai ʻo ka starch i ka wai wela. ʻAʻole ʻike ʻia ka cellulose i ka amylase a ʻaʻole i ʻulaʻula ke ʻike ʻia i ka iodine.
Cellulose Etera:
ʻO ka inoa Pelekane ocellulose eterahe cellulose ether, he hui polymer me ka hale etera i hana ʻia me ka cellulose. ʻO ia ka huahana o ka hopena kemika o cellulose (mea kanu) me ka etherification agent. E like me ka hoʻokaʻawale ʻana o ke kinona o ka substituent ma hope o ka etherification, hiki ke hoʻokaʻawale ʻia i nā ethers anionic, cationic a me nonionic. Ma muli o ka etherification agent 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, ka hale hana carboxymethyl cellulose, methyl cellulose, etc. Ua kapa ʻia ʻo cellulose ether he cellulose, he inoa maʻamau, a ua kapa ʻia ʻo cellulose (a i ʻole ether) pololei.
Mechanism Mānoanoa o Cellulose Ether Thickener:
ʻO nā mea mānoanoa cellulose eter he mau mānoanoa non-ionic e mānoanoa nui ma ka hydration a me ka hoʻopili ʻana ma waena o nā mole.
He maʻalahi ke kaulahao polymer o cellulose ether e hana i ka paʻa hydrogen me ka wai i loko o ka wai, a ʻo ka paʻa hydrogen e loaʻa ai ka hydration kiʻekiʻe a me ka hoʻopili ʻana i waena o ka molecular.
I ka manawa ecellulose eteraHoʻohui ʻia ka mānoanoa i ka pena latex, hoʻomoʻa ia i ka nui o ka wai, e hoʻonui nui ai i kāna leo ponoʻī, e hōʻemi ana i ka wahi manuahi no nā puaʻa, nā mea hoʻopihapiha a me nā ʻāpana latex;
I ka manawa like, ua hoʻopili ʻia nā kaulahao molecular cellulose ether e hana i kahi ʻano pūnaewele ʻekolu-dimensional, a ua hoʻopuni ʻia nā puaʻa, 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, hoʻomaikaʻi ʻia ka viscosity o ka ʻōnaehana! Loaʻa i ka hopena mānoanoa a mākou e pono ai!
Ka manawa hoʻouna: Apr-28-2024