Hydroxyethythythythyth celluse na polymen?

Hydroxyethythythythythyth Cellulose (HEC) N'ezie polymen. In order to fully understand this, we need to explore the basic concepts of polymers, the structure of cellulose and its derivatives, the synthesis and properties of hydroxyethyl cellulose, and its applications.

1. Ihe nkiti nke polymers

Polymers bụ ogige macromecular na-etolite site na ọnụ ọgụgụ buru ibu nke ugboro ugboro nkeji (a na-akpọ monomers) nke ejikọtara site na nke kemịkal. Ndị a monomers na-etolite akụkụ dị ogologo site na mmeghachi omume nke polymerization, na-enye polymers pụrụ iche akụrụngwa na kemịkal. Dabere na isi mmalite ha, enwere ike kee polymers banye polymers eke na polymers sịntetik. Pol polymers gụnyere cellose, protein, na roba eke; polymers na-agụnye polyethylene, polystyrene, na polyvinyly chloride.

2. Cellulose na nhazi ya

Cellulose bụ ogige polymer kachasị ukwuu na okike, nke a na-ahụ na mgbidi osisi. Cellulose bụ polysiccharide mejupụtara β-d-glucose kekọtara site na β (1 →) Glycosidigic agbụ, nke nwere nnukwu kristal na steepụ dị elu. N'ihi nkeji glucose ya ugboro ugboro, akwara onwe ya bụ polyman.

3. Synshesis na usoro nke hydroxyethythythyth cellulose

Hydroxyethythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythyth nke cellose, nke a na-enweta site na iwebata hydroxyethyl (-ch₂chuh yinye akwara cellular. Specifically, cellulose reacts with ethyl chloroacetate or ethyl chloroacetate solution under alkaline conditions to produce hydroxyethyl cellulose.

Ọkpụkpụ, Hydroxyethyth Cellulose ka na-ejigide ogologo ntachi nke celluse, ya bụ, a na-enwe nnukwu akụrụ nke ọnụ ọgụgụ dị ukwuu nke glucose. Agbanyeghị, a na-eji otu hydroxyyl dochie otu hydroxyethyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyl, na mgbanaka a na-eme ka cellulose nwee solsistics dị iche na nke cellose. N'agbanyeghị mmeghe nke ndị nnọchianya, hydroxyethythyth cellulose ka dị elu molecular ibu dị elu, na usoro ya nwere nkeji ugboro ugboro, yabụ, ọ na-ezute nkọwa nke polymen.

4. Njirimara nke Hydroxyethyth Cellulose

Dị ka polymer, hydroxyethyth cellulose nwere ụfọdụ ihe ọkụkụ na-ahụkarị dịka ndị a:

Ibu oke molecular: Ibu ihe omimi nke celdroxyethyth cellulose na-abụkarị n'etiti puku kwuru puku na nde polons, nke na-egosi njirimara polot.

Ngwongwo ngwọta: hydroxyethythy cellulose nwere ike ịmalite ngwọta viodal na mmiri oyi na mmiri ọkụ. Viscosity nke ihe ngwọta ya metụtara oke molecular na ogo nke dochie. Ihe onwunwe a dị ezigbo mkpa n'ọtụtụ ngwa.

Thermosensitity: viscosity nke hydroxyethythythyth sellulose na-agbanwe agbanwe na ọnọdụ okpomọkụ, na-egosi ihu igwe, nke bụ ihe a na-ahụkarị nke polymer.

Ike na-akpụ akpụ na ihe nkiri: N'ihi njedebe na mmekọrịta nke otu polymer na-eme ihe, hydroxyethtyy cellulose nwere ike ịkpụzi ihe owuwu network na ihe ngwọta ahụ, na-enye ya ezigbo ndị na-eme ihe nkiri.

V. App nke hydroxyethythyth Cellulose

N'ihi akụrụngwa polymer ya pụrụ iche, a na-eji cellosethyth celloseths na ọtụtụ ubi. Ihe ndị a bụ ụfọdụ ngwa ndị a na-ahụkarị:

Ihe eji eme ihe: Dika ihe ditite ciment, hydroxyethyth cellulose nwere ike ime ka mmiri di iche na mmiri ciment slurry ma melite oru owuwu.

Coanings na eserese: na mkpuchi dị ka nke na-acha uhie uhie, sie ike na ihe nkiri na-eme ihe nkiri iji melite adhesion na ịdị nkọ nke mkpuchi.

Adhesive: Ngwongwo nke ezigbo ya na-eme ka ọ bụrụ ihe dị mkpa na nhazi adresive.

Industrylọ ọrụ na-egwu: A na-eji HEC na mkpuchi akwụkwọ na nhazi iji meziwanye ịdị mma dị elu na akụrụngwa na-ebipụta akwụkwọ.

Ihe ịchọ mma: HEC na-eji ọtụtụ ebe na mmanụ esi nri, akwa eze na ngwaahịa nlekọta anụ ahụ.

Ngwa ndị a na-eji uru polymer Njirimara nke celloxyethyth cellulose, dị ka ihe nkiri na nkwụsi ike, na-egosipụta arụmọrụ ya na mkpa dị ka polymen.

Hydroxyethythythythyth Cellulose bụ polymer nwetara site na ngbanwe kemịkal nke cellulose. Ihe owuwu ya nwere otutu ihe omumu di iche iche, nke ka na-edozi njirimara nke oke molecular dị elu na nhazi hydroxyethyl. Hydroxyethyth Cellulose ngosipụta Njirimara Njirimara dị ka vismity dị elu, ihe ngwọta plastimity na ikike ịgha mkpụrụ, na-ejikwa n'ọtụtụ ụlọ ọrụ mmepụta ihe. Ya mere, enwere ike ikwu nke ọma na hydroxyethyth cellulose bụ polymen dị mkpa.