Putty foda ne yafi hada da fim-forming abubuwa (bonding kayan), fillers, ruwa-retaining jamiái, thickeners, defoamers, da dai sauransu Common Organic sinadaran albarkatun kasa a putty foda yafi hada da: cellulose, pregelatinized sitaci, sitaci ether, polyvinyl barasa, dispersible latex foda, da dai sauransu Below, Polycat zai bincikar da daban-daban sinadaran da raw kayan da mu.
Fiber:
Fiber (US: Fiber; Turanci: Fiber) yana nufin wani abu da ya ƙunshi filaye masu ci gaba ko katsewa. Kamar su fiber na shuka, gashin dabba, fiber siliki, fiber na roba, da dai sauransu.
Cellulose:
Cellulose shine polysaccharide macromolecular wanda ya ƙunshi glucose kuma shine babban tsarin tsarin ganuwar tantanin halitta. A cikin zafin jiki, cellulose ba ya narkewa a cikin ruwa ko a cikin kaushi na gama gari. Abun da ke cikin cellulose na auduga yana kusa da 100%, yana mai da shi mafi kyawun asalin halitta na cellulose. A cikin itace gabaɗaya, cellulose yana da 40-50%, kuma akwai 10-30% hemicellulose da 20-30% lignin.
Bambanci tsakanin cellulose (dama) da sitaci (hagu):
Gabaɗaya magana, duka sitaci da cellulose su ne macromolecular polysaccharides, kuma ana iya bayyana ma'anar kwayoyin kamar (C6H10O5) n. Nauyin kwayoyin halitta na cellulose ya fi na sitaci girma, kuma cellulose na iya bazuwa don samar da sitaci. Cellulose shine D-glucose da β-1,4 glycoside macromolecular polysaccharides wanda ya ƙunshi shaidu, yayin da sitaci ya kasance ta hanyar α-1,4 glycosidic bonds. Cellulose gabaɗaya baya reshe, amma sitaci yana reshe ta 1,6 glycosidic bonds. Cellulose baya narkewa a cikin ruwa, yayin da sitaci ke narkewa a cikin ruwan zafi. Cellulose ba shi da hankali ga amylase kuma baya juya shuɗi lokacin da aka fallasa shi da aidin.
Cellulose Ether:
Sunan Ingilishi nacellulose ethershine ether cellulose, wanda shine fili na polymer tare da tsarin ether wanda aka yi da cellulose. Yana da samfurin sinadarai na cellulose (shuka) tare da wakili na etherification. Dangane da tsarin tsarin sinadarai na maye gurbin bayan etherification, ana iya raba shi zuwa anionic, cationic da nonionic ethers. Dangane da etherification wakili amfani, akwai methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxymethyl hydroxyethyl cellulose da kuma cellulose masana'antu, carboxymethyl hydroxyethyl cellulose da sauransu. ether kuma ana kiransa cellulose, wanda shine sunan da ba daidai ba, kuma ana kiransa cellulose (ko ether) daidai.
Tsarin Kauri na Cellulose Ether Thickener:
Sellulose ether thickeners ne wadanda ba na ionic thickeners cewa kauri yafi ta hydration da entanglement tsakanin kwayoyin.
Sarkar polymer na cellulose ether yana da sauƙi don samar da haɗin hydrogen tare da ruwa a cikin ruwa, kuma haɗin gwiwar hydrogen ya sa ya sami babban hydration da haɗuwa tsakanin kwayoyin halitta.
Lokacin dacellulose etheran ƙara thickener zuwa fenti na latex, yana ɗaukar ruwa mai yawa, yana haifar da girman kansa don fadadawa sosai, yana rage sararin samaniya don pigments, fillers da latex particles;
A lokaci guda kuma, sarƙoƙi na ether cellulose suna haɗuwa don samar da tsarin cibiyar sadarwa mai girma uku, kuma pigments, fillers da latex barbashi suna kewaye a tsakiyar raga kuma ba za su iya gudana kyauta ba.
A ƙarƙashin waɗannan tasirin guda biyu, an inganta danko na tsarin! Cimma tasirin thickening da muke bukata!
Lokacin aikawa: Afrilu-28-2024