HEC na agba Latex

1. Isi Nkọwa nke HEC

Haịdroxyethyl Cellulose (HEC)bụ polima na-agbaze na mmiri nke na-abụghị ionic, nke a na-emepụta site na iji cellulose na-emeghachi omume na ethylene oxide mgbe alkalization gasịrị. Dịka ihe na-agbaze na mmiri nke ọma, HEC na-arụ ọrụ a na-apụghị ịgbanwe agbanwe na agba latex. Ihe nnọchi hydroxyethyl dị na nhazi molekul ya na-enye ya mmiri dị mma na-agbaze na nkwụsi ike kemịkalụ, na-eme ka ọ bụrụ otu n'ime ihe na-agbaze cellulose ether nke a na-ejikarị eme ihe na ụlọ ọrụ agba nke dabere na mmiri.

2. Isi ihe dị na agba HEC na latex

Ọrụ dị oke mma nke ime ka ọkpụrụkpụ sie ike

Ihe kachasị pụta ìhè nke HEC bụ ikike ya dị oke mma nke ime ka ọ sie ike:

Arụmọrụ dị elu nke na-eme ka ọkpụrụkpụ sie ike: obere ego mgbakwunye (na-abụkarị 0.2%-1.0% nke usoro niile) nwere ike ime ka viscosity nke sistemụ ahụ dịkwuo elu nke ukwuu.

Njirimara mmiri mmiri Pseudoplastic: oke viscosity mgbe ọ kwụsiri ike, viscosity na-ebelata n'oge ihe owuwu, nke na-eme ka nchekwa kwụsie ike kamakwa ọ na-eme ka nhicha dị mfe

Nhazi Viscosity: Ngwaahịa HEC nwere oke molekul dị iche iche nwere ike inye oke viscosity site na puku kwuru puku ruo ọtụtụ iri puku mPa.

Nhazi arụmọrụ rheological dị mma

HEC nwere ike imeziwanye ihe onwunwe nke agba latex nke ọma:

Mgbochi ịda ada: na-egbochi agba ịda ada mgbe etinyere ya n'elu elu kwụ ọtọ

Ọsọ dị mma na ịdị ire ụtọ: nwere ike ịtọlite ​​​​na akpaghị aka mgbe asachara ahịhịa, na-ebelata akara ahịhịa

Njide mmiri dị obere: na-egbu oge ịfụ mmiri ma na-agbatị oge mmeghe

Ndakọrịta na nkwụsi ike dị mma

Sistemụ agba HEC na latex na-egosi:

Mgbanwe pH sara mbara: arụmọrụ kwụsiri ike na oke pH nke 2-12

Ezigbo nnabata electrolyte: ihe nnu dị na sistemụ anaghị emetụta ya

Nchekwa dị mma: ọ dịghị mfe ịtọpụ ma ọ bụ mee ka ọ dịgide n'oge nchekwa ogologo oge

Njirimara nchedo gburugburu ebe obibi na nchekwa

Dịka ihe mgbakwunye akwụkwọ ndụ akwụkwọ ndụ, HEC nwere njirimara ndị a:

Anaghị egbu egbu ma ọ bụ na-adịghị emerụ ahụ: anaghị enwe APEO, formaldehyde na ihe ndị ọzọ na-emerụ ahụ

A pụrụ imebi emebi: enwere ike ire ere site na nje ndị dị ndụ, ọ na-adịghịkwa emebi gburugburu ebe obibi

Àgwà VOC dị ala: na-emezu ihe achọrọ maka mmepe nke mkpuchi na-adịghị ize ndụ gburugburu ebe obibi

3. Ọrụ nke HEC na agba latex

Mee ka usoro mgbasa sie ike

HEC na-eme ka agba na ihe ndị na-ejupụta ihe sie ike site na usoro ndị a:

Mee ka viscosity nke usoro na-aga n'ihu dịkwuo elu ma belata ọnụego sedimentation nke ihe ndị ahụ

Mepụta usoro netwọk atọ iji gbochie nchịkọta ihe dị iche iche

Mepụta mmetụta mgbochi steric site na iji ihe ndị na-egbu egbu latex

Meziwanye arụmọrụ owuwu

HEC na-eme ka arụmọrụ owuwu nke agba latex dịkwuo mma:

Hazie viscosity ka agba ahụ wee dị mfe ịtụgharị, ịcha ahịhịa ma ọ bụ fesa.

Jikwaa arụmọrụ ịgbasa ihe ma belata mfu owuwu

Gbatịa oge mmiri mmiri maka nhazi nkwonkwo dị mfe

Meziwanye mma nke ihe nkiri agba ahụ

HEC na-enyere aka ịmepụta ihe nkiri agba dị elu:

Kwalite nkesa agba n'otu ụzọ ma melite ike izochi

Belata mkpụkọ na mgbawa n'oge nkụcha

Mee ka njupụta nke ihe nkiri agba dịkwuo mma ma melite iguzogide scrub

4. Uru ntụnyere nke HEC na ihe ndị ọzọ na-eme ka ihe sie ike

Ma e jiri ya tụnyere ihe ndị na-eme ka ihe dị arọ nke na-adịghị n'ime ahụ ghara ịdị ike

Ma e jiri ya tụnyere bentonite, magnesium aluminum silicate, wdg.:

Arụmọrụ dị elu nke na-eme ka ọkpụrụkpụ sie ike

Anaghị emetụta ihe nkiri agba ahụ nke ọma

Anaghị akpata mgbanwe na pH nke sistemụ ahụ

Ma e jiri ya tụnyere ihe ndị na-eme ka ihe dị arọ nke sịntetik dị ike

Ma e jiri ya tụnyere polyurethanes (HEUR) na acrylics (HASE):

Ọnụ ahịa asọmpi ka mma

Mgbanwe usoro anaghị emetụta ya nke ukwuu

Nchekwa ka mma

Ma e jiri ya tụnyere ndị ọzọ cellulose ethers

Ma e jiri ya tụnyere methyl cellulose (MC) na hydroxypropyl methyl cellulose (HPMC):

Ọ ka mma ịgbaze, enweghị oke okpomọkụ jel

Mgbochi ebu ka mma

Ndakọrịta ka mma na emulsions

5. Njirimara ojiji nke HEC na agba latex pụrụ iche

Na agba latex na-egbuke egbuke

Nye viscosity nhazi dị mma n'enweghị mmetụta na-egbuke egbuke

Belata oke nkewa mmiri nke sistemu PVC dị elu

Nyere ntụ ntụ aluminom na agba ndị ọzọ na-emetụta aka ịhazi

Na agba latex na-agbanwe agbanwe

Mee ka ihe na-emegiderịta onwe ya dị n'etiti ikelata na mgbochi ịla n'iyi

Gbochie mmiri mmiri n'oge mkpuchi siri ike

Nọgide na-arụ ọrụ nlọghachi nke mkpuchi ahụ

Na agba latex na-arụ ọrụ

Anaghị emetụta mkpuchi nje bacteria = Mmetụta na arụmọrụ nke ihe ndị na-arụ ọrụ

Nye arụmọrụ nkwusioru kwesịrị ekwesị maka mkpuchi mkpuchi okpomọkụ

Jikọta ihe nchekwa iji mee ka ndụ nchekwa dị na ite ahụ dịkwuo ogologo oge.

6. Ihe ndị a ga-eme iji gbochie HEC

Usoro mgbaze: A ga-eji usoro mgbasa ozi kwesịrị ekwesị iji gbochie njikọta. A na-atụ aro ka ị gwakọta ya na ntụ akọrọ ma ọ bụ kwadebe tupu gel mbụ

Oge mgbakwunye: A na-etinyekarị ya n'ọkwa ngwakọta agba iji zere kọntaktị kpọmkwem na ụfọdụ ihe na-agbasa

Nhọrọ ndakọrịta: A na-ejikarị ya na ụdị ihe ndị ọzọ na-eme ka ihe sie ike iji nweta mmetụta synergistic

Ọnọdụ nchekwa: A ga-emechi ya ma chekwaa ya n'ebe kpọrọ nkụ iji gbochie mmiri ịmịkọrọ na ịchịkọta ya

7. Usoro mmepe n'ọdịnihu

Site na mmepe nke teknụzụ agba latex, ngwaahịa HEC na-emepụta ihe ọhụrụ mgbe niile:

HEC ntụ dị ala na-ebelata mmetụta na ihe nkiri agba

HEC ozugbo na-eme ka usoro mmepụta dị mfe

HEC ejiri mee ihe n'elu elu na-eme ka arụmọrụ mgbasa dịkwuo mma

Ejikọtara ya na nanotechnology iji mepụta ngwaahịa dị iche iche na-arụ ọrụ nke ọma

HECỌ na-arụ ọrụ dị mkpa n'ọhịa agba latex yana njirimara arụmọrụ pụrụ iche ya. Mmetụta ya dị mma nke na-eme ka ọ sie ike, arụmọrụ owuwu dị mma na njirimara nchekwa kwụsiri ike na-eme ka ọ bụrụ otu n'ime ihe ndị na-eme ka ọ dị arọ maka ndị na-emepụta agba dabere na mmiri. Site na mmụba siri ike nke ihe achọrọ maka nchekwa gburugburu ebe obibi na mmepe na-aga n'ihu nke teknụzụ mkpuchi, atụmanya itinye HEC na agba latex ga-abawanye ụba.