Ziziphi iinkcazo zefiber, i-cellulose, kunye ne-cellulose ether kwaye yintoni umahluko?

Umgubo wePutty uqulunqwe ikakhulu ngezinto ezenza ifilim (izinto zokubopha), izihluzi, ii-agent zokugcina amanzi, i-thickeners, i-defoamers, njl njl. Izinto eziqhelekileyo zeekhemikhali ze-organic ekrwada kwi-putty powder ziquka: i-cellulose, isitashi se-pregelatinized, isitashi se-ether, i-polyvinyl alcohol, i-disperible latex powder, njl.

Ifayibha:

IFayibha (US: Ifayibha; IsiNgesi: Ifayibha) ibhekisa kwinto eyenziwe yimicu eqhubekayo okanye engaqhubekiyo. Njengefayibha yezityalo, iinwele zezilwanyana, ifayibha yesilika, ifayibha yokwenziwa, njl.

ISelulosi:

I-Cellulose yi-macromolecular polysaccharide eyenziwe yi-glucose kwaye iyona nxalenye yesakhiwo seendonga zeeseli zesityalo. Kwiqondo lobushushu begumbi, iselulosi ayinyibiliki emanzini okanye kwizinyibilikisi eziqhelekileyo eziphilayo. Umxholo we-cellulose wekotoni usondele kwi-100%, okwenza kube ngumthombo wendalo ococekileyo we-cellulose. Ngokhuni ngokubanzi, i-cellulose i-akhawunti ye-40-50%, kwaye kukho i-10-30% ye-hemicellulose kunye ne-20-30% ye-lignin.

Umahluko phakathi kweselulosi (ekunene) kunye nesitatshi (ekhohlo):

Ngokuqhelekileyo, zombini isitashi kunye ne-cellulose yi-macromolecular polysaccharides, kwaye i-molecular formula ingabonakaliswa njenge (C6H10O5) n. Ubunzima bemolekyuli ye-cellulose bukhulu kunobo besitatshi, kwaye i-cellulose inokubola ukuze ivelise isitashi. I-cellulose yi-D-glucose kunye ne-β-1,4 glycoside I-polysaccharides ye-Macromolecular eyakhiwe ngamabhondi, ngelixa isitashi senziwa yi-α-1,4 glycosidic bonds. I-Cellulose ngokuqhelekileyo ayinayo i-branched, kodwa isitashi sifakwe kwi-1,6 glycosidic bonds. I-cellulose ayinyibiliki kakuhle emanzini, ngelixa isitashi sinyibilika emanzini ashushu. I-Cellulose ayinamvakalelo kwi-amylase kwaye ayijiki luhlaza okwesibhakabhaka xa isesichengeni se-iodine.

I-Cellulose Ether:

Igama lesiNgesi likai-cellulose etheryi-cellulose ether, eyikhompawundi yepolymer enesakhiwo se-ether esenziwe ngeselulosi. Yimveliso yokusabela kweekhemikhali zeselulosi (isityalo) kunye ne-etherification agent. Ngokutsho kokuhlelwa kweekhemikhali ze-substituent emva kwe-etherification, inokwahlulwa ibe yi-anionic, i-cationic kunye ne-nonionic ethers. Ngokuxhomekeke kwi-etherification agent esetyenzisiweyo, kukho i-methyl cellulose, i-hydroxyethyl methyl cellulose, i-carboxymethyl cellulose, i-ethyl cellulose, i-benzyl cellulose, i-hydroxyethyl cellulose, i-hydroxypropyl methyl cellulose, i-cyanoethyl cellulose, i-benzyl cyanoethyl cellulose, i-carboxyl cellulose, i-carboxyyl cellulose, i-carboxyyl cellulose. Kwishishini lokwakha, i-cellulose ether ikwabizwa ngokuba yi-cellulose, eligama elingaqhelekanga, kwaye ibizwa ngokuba yi-cellulose (okanye i-ether) ngokuchanekileyo.

Indlela yokuJiya yeCellulose Ether Thickener:

I-Cellulose ether thickeners zi-non-ionic thickeners ezijiyayo ubukhulu becala ngokufakwa kwe-hydration kunye nokuphonswa phakathi kweemolekyuli.

Ikhonkco le-polymer ye-cellulose ether kulula ukwenza ibhondi ye-hydrogen ngamanzi emanzini, kwaye ibhondi ye-hydrogen yenza ukuba ibe ne-hydration ephezulu kunye ne-inter-molecular entanglement.

Xa ii-cellulose etheri-thickener yongezwa kwipeyinti ye-latex, ithatha inani elikhulu lamanzi, ibangela ukuba umthamo wayo ukhule kakhulu, unciphisa indawo yamahhala yee-pigments, iifayili kunye neengqungquthela ze-latex;

Ngelo xesha, i-cellulose ether ye-molecular chain chain idibene ukuze yenze i-network network structure, kunye ne-pigments, i-fillers kunye ne-latex particles zijikelezwe phakathi kwe-mesh kwaye azikwazi ukuhamba ngokukhululekile.

Ngaphantsi kwezi ziphumo zimbini, i-viscosity yenkqubo iphuculwe! Siphumelele isiphumo sokutyeba ebesifuna!