Focus on Cellulose ethers

Kedu ka esi eme cellulose esters?

Kedu ka esi eme cellulose esters?

Cellulose esters bụ klas nke ihe a na-emepụta mgbe a na-eji acid ma ọ bụ mmanya meghachi omume cellulose. Ngwaahịa a na-esi na ya pụta bụ ihe na-eguzogide mmiri, okpomọkụ, na kemịkal. A na-eji esters cellulose eme ihe n'ọtụtụ ngwa dị iche iche, gụnyere mkpuchi, ihe nkpuchi, na plastik.

A na-emekarị esters cellulose site na iji acid ma ọ bụ mmanya meghachi omume cellulose. A na-emekarị mmeghachi omume n'ihu onye na-eme ihe, dị ka sulfuric acid, na okpomọkụ dị elu. Mmeghachi omume na-emepụta esters dị iche iche, dabere n'ụdị acid ma ọ bụ mmanya na-egbu egbu.

Ndị na-ahụkarị cellulose esters bụ cellulose acetate, cellulose propionate, na cellulose butyrate. A na-emepụta acetate cellulose mgbe cellulose na-emeghachi omume na acetic acid. A na-emepụta cellulose propionate mgbe cellulose na-emeghachi omume na propionic acid. A na-etolite cellulose butyrate mgbe cellulose na-emeghachi omume na butyric acid.

A pụkwara imepụta esters cellulose site na iji mmanya na-emeghachi omume cellulose. Ihe ọṅụṅụ na-egbu egbu nke a na-ejikarị eme ihe maka nzube a bụ methanol, ethanol, na isopropanol. Mmeghachi omume na-emepụta esters dị iche iche, dabere n'ụdị mmanya na-aba n'anya.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ihe esterifying, dị ka glycerol ma ọ bụ ethylene glycol. Mmeghachi omume a na-emepụta esters dị iche iche, dabere na ụdị esterifying a na-eji eme ihe.

A nwekwara ike imepụta esters cellulose site na iji cellulose na-emeghachi omume na ihe halogenating, dị ka chlorine ma ọ bụ bromine. Mmeghachi omume a na-emepụta esters dị iche iche, dabere na ụdị halogenating a na-eji eme ihe.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ihe na-eme ihe na-ekpo ọkụ, dị ka hydrogen peroxide. Mmeghachi omume a na-emepụta esters dị iche iche dị iche iche, dabere n'ụdị onye na-ahụ maka oxidizing ejiri.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ihe na-eme ihe na-emepụta ihe, dị ka amonia ma ọ bụ amine. Mmeghachi omume a na-emepụta esters dị iche iche dị iche iche, dabere na ụdị aminating a na-eji.

A nwekwara ike imepụta esters cellulose site na imeghachi cellulose na ihe na-ebelata, dị ka sodium borohydride ma ọ bụ lithium aluminom hydride. Mmeghachi omume a na-emepụta esters dị iche iche, dabere n'ụdị onye na-ebelata ihe eji eme ihe.

Enwere ike imepụta esters cellulose site na imeghachi cellulose na onye na-emekọrịta ihe, dị ka dialdehyde ma ọ bụ diisocyanate. Mmeghachi omume a na-emepụta esters dị iche iche, dabere n'ụdị onye na-emekọrịta ihe na-ejikọta ya.

Enwere ike imepụta esters cellulose site na imeghachi cellulose na onye na-eme ihe na-emepụta polymer, dị ka vinyl monomer ma ọ bụ polyester. Mmeghachi omume a na-emepụta esters dị iche iche dị iche iche, dabere n'ụdị onye na-emepụta polymerizing eji.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ihe na-agwọ ọrịa, dị ka epoxy ma ọ bụ polyurethane. Mmeghachi omume a na-emepụta esters dị iche iche, dabere na ụdị ọgwụgwọ eji eme ihe.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ihe na-emepụta plastik, dị ka phthalate ma ọ bụ polyethylene glycol. Mmeghachi omume a na-emepụta esters dị iche iche dị iche iche, dabere n'ụdị onye na-eme ihe na-emepụta plasticizing.

A nwekwara ike imepụta esters cellulose site na iji ihe na-eme ihe na-eme ka cellulose meghachi omume, dị ka nonionic ma ọ bụ anionic surfactant. Mmeghachi omume a na-emepụta esters dị iche iche, dabere na ụdị surfactant eji.

A pụkwara imepụta esters cellulose site n'imeghachite cellulose na ire ọkụ, dị ka hydrocarbon halogenated ma ọ bụ phosphorous compound. Mmeghachi omume a na-emepụta esters dị iche iche dị iche iche, dabere n'ụdị ire ọkụ ejiri.

N'ikpeazụ, a na-emepụta cellulose esters site na mmeghachi omume cellulose na acid, ihe ọṅụṅụ mmanya, onye na-emepụta ihe, onye na-ahụ maka halogenating, onye na-ahụ maka oxidizing, onye na-eri nri, onye na-ebelata ihe, onye na-ejikọta ọnụ, onye na-emepụta polymerizing, onye na-agwọ ọrịa. , onye na-eme ihe na-eme plastik, ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-egbochi ọkụ. Ụdị ester emepụtara na-adabere n'ụdị reactant eji. A na-eji esters cellulose eme ihe n'ọtụtụ ngwa dị iche iche, gụnyere mkpuchi, ihe nkpuchi, na plastik.


Oge nzipu: Feb-08-2023
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