Kodi matanthauzo a fiber, cellulose, ndi cellulose ether ndi chiyani ndipo pali kusiyana kotani?

Putty ufa makamaka wapangidwa ndi filimu kupanga zinthu (chomangira zipangizo), fillers, madzi posungira wothandizira, thickeners, defoamers, etc. Common organic mankhwala zopangira putty ufa makamaka monga: mapadi, pregelatinized wowuma, wowuma efa, polyvinyl mowa, dispersible latex ufa, etc.

CHIKWANGWANI:

Fiber (US: Fiber; English: Fiber) amatanthauza chinthu chopangidwa ndi ulusi wopitirira kapena wosapitirira. Monga ulusi wazomera, tsitsi lanyama, ulusi wa silika, ulusi wopangira, etc.

Ma cellulose:

Cellulose ndi macromolecular polysaccharide wopangidwa ndi shuga ndipo ndiye gawo lalikulu la makoma a cell cell. Kutentha kwachipinda, mapadi sasungunuka m'madzi kapena m'madzi osungunulira. Ma cellulose omwe ali mu thonje amakhala pafupi ndi 100%, zomwe zimapangitsa kukhala gwero lachilengedwe la cellulose. Mwambiri nkhuni, mapadi amawerengera 40-50%, ndipo pali 10-30% hemicellulose ndi 20-30% lignin.

Kusiyana pakati pa cellulose (kumanja) ndi wowuma (kumanzere):

Nthawi zambiri, wowuma ndi cellulose ndi macromolecular polysaccharides, ndipo mawonekedwe a maselo amatha kufotokozedwa ngati (C6H10O5) n. Maselo a cellulose amalemera kwambiri kuposa wowuma, ndipo mapadi amatha kuwola kuti apange wowuma. Cellulose ndi D-glucose ndi β-1,4 glycoside Macromolecular polysaccharides yopangidwa ndi zomangira, pamene wowuma amapangidwa ndi α-1,4 glycosidic bond. Ma cellulose nthawi zambiri alibe nthambi, koma wowuma amakhala ndi nthambi za 1,6 glycosidic bond. Ma cellulose sasungunuka bwino m'madzi, pomwe wowuma amasungunuka m'madzi otentha. Ma cellulose samva kumva kwa amylase ndipo satembenukira buluu akakumana ndi ayodini.

Selulosi Ether:

Dzina lachingerezi lacellulose etherndi cellulose ether, yomwe ndi polima pawiri yokhala ndi ether yopangidwa ndi cellulose. Ndiwopangidwa ndi zomwe zimachitika pama cellulose (zomera) ndi etherification wothandizira. Malinga ndi kapangidwe ka mankhwala kagawo ka m'malo pambuyo pa etherification, imatha kugawidwa mu anionic, cationic ndi nonionic ethers. Kutengera ndi etherification agent yomwe imagwiritsidwa ntchito, pali methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxyyl cellulose, phenothil cellulose, carboxyyl cellulose, carboxyyl cellulose. M'makampani omanga, cellulose ether imatchedwanso cellulose, lomwe ndi dzina losakhazikika, ndipo limatchedwa cellulose (kapena ether) molondola.

Njira Zokulitsira Ma cellulose Ether Thickener:

Ma cellulose ether thickeners ndi okhuthala omwe si a ayoni omwe amakhuthala makamaka chifukwa cha hydration ndi kupindika pakati pa mamolekyu.

Unyolo wa polima wa cellulose ether ndi wosavuta kupanga chomangira cha haidrojeni ndi madzi m'madzi, ndipo chomangira cha haidrojeni chimapangitsa kuti ikhale ndi ma hydration apamwamba komanso kupindika kwapakati-maselo.

Pamene acellulose etherthickener imawonjezeredwa ku utoto wa latex, imatenga madzi ambiri, kuchititsa kuti voliyumu yake ichuluke kwambiri, kuchepetsa malo omasuka a pigments, fillers ndi latex particles;

Panthawi imodzimodziyo, maunyolo a cellulose ether molekyulu amalumikizana kuti apange maukonde amitundu itatu, ndipo ma pigment, fillers ndi latex particles akuzunguliridwa pakati pa mauna ndipo sangathe kuyenda momasuka.

Pansi pa zotsatirazi ziwirizi, kukhuthala kwa dongosolo kumapangidwa bwino! Takwaniritsa makulidwe omwe timafunikira!