Fojusi lori awọn ethers Cellulose

Awọn alaye ti redispersible emulsion lulú

Awọn alaye ti redispersible emulsion lulú

Redispersible Emulsion Powder (RDP), ti a tun mọ ni erupẹ polima redispersible, jẹ ṣiṣan-ọfẹ, lulú funfun ti a gba nipasẹ sokiri gbigbe ohun emulsion ti vinyl acetate-ethylene copolymer tabi awọn polima miiran. O jẹ aropọ wapọ ti a lo ninu awọn ohun elo ikole lati mu awọn ohun-ini dara si bii ifaramọ, irọrun, iṣẹ ṣiṣe, ati resistance omi. Eyi ni awọn alaye ti lulú emulsion redispersible:

Àkópọ̀:

  • Ipilẹ Polymer: Ipilẹ akọkọ ti RDP jẹ polima sintetiki, deede vinyl acetate-ethylene (VAE) copolymer. Awọn polima miiran bii vinyl acetate-vinyl versatate (VA/VeoVa) copolymers, ethylene-vinyl chloride (EVC) copolymers, ati awọn polima akiriliki le tun ṣee lo da lori awọn ohun-ini ti o fẹ.
  • Awọn Colloid Idaabobo: RDP le ni awọn colloid aabo gẹgẹbi awọn ethers cellulose (fun apẹẹrẹ, hydroxypropyl methylcellulose), ọti polyvinyl (PVA), tabi sitashi lati mu iduroṣinṣin ati isọdọtun dara si.

Ilana iṣelọpọ:

  1. Emulsion Formation: Awọn polima ti wa ni tuka ninu omi pẹlú pẹlu miiran additives bi aabo colloid, plasticizers, ati dispersing òjíṣẹ lati fẹlẹfẹlẹ kan ti idurosinsin emulsion.
  2. Gbigbe Sokiri: Emulsion ti wa ni atomized ati fun sokiri sinu iyẹwu gbigbẹ nibiti afẹfẹ gbigbona ti gbe omi kuro, nlọ sile awọn patikulu to lagbara ti polima. Awọn patikulu ti o gbẹ ti sokiri ni a gba ati tito lẹtọ lati gba pinpin iwọn patiku ti o fẹ.
  3. Itọju lẹhin-Itọju: Awọn patikulu ti o gbẹ le gba awọn ilana itọju lẹhin-itọju bii iyipada oju-aye, granulation, tabi idapọpọ pẹlu awọn afikun miiran lati mu awọn ohun-ini pọ si bii redispersibility, ṣiṣan ṣiṣan, ati ibamu pẹlu awọn paati miiran ni awọn agbekalẹ.

Awọn ohun-ini:

  • Redispersibility: RDP ṣe afihan isọdọtun ti o dara julọ ninu omi, ṣiṣe awọn pipinka iduroṣinṣin ti o jọra si emulsion atilẹba lori isọdọtun. Ohun-ini yii ṣe idaniloju pinpin iṣọkan ati iṣẹ ṣiṣe deede ni awọn ohun elo ikole.
  • Ipilẹ Fiimu: Awọn patikulu RDP le ṣajọpọ ati ṣe awọn fiimu polymer lemọlemọ lori gbigbẹ, pese ifaramọ, irọrun, ati agbara si awọn ohun elo ikole gẹgẹbi awọn amọ, adhesives, ati awọn grouts.
  • Idaduro Omi: RDP nmu idaduro omi ni awọn ọna ẹrọ cementitious, idinku pipadanu omi nigba eto ati imularada ati imudarasi iṣẹ-ṣiṣe, adhesion, ati agbara ipari.
  • Irọrun ati Crack Resistance: Fiimu polymer ti a ṣe nipasẹ RDP n funni ni irọrun ati ijakadi si awọn ohun elo ikole, idinku eewu ti fifọ ati delamination.
  • Ibamu: RDP ni ibamu pẹlu ọpọlọpọ awọn binders cementitious, fillers, aggregates, and additives lo ninu awọn iṣelọpọ ikole, gbigba fun awọn ohun elo ti o wapọ ati awọn agbekalẹ.

Awọn ohun elo:

  • Tile Adhesives ati Grouts: RDP ṣe ilọsiwaju ifaramọ, irọrun, ati idena omi ni awọn adhesives tile ati awọn grouts, ni idaniloju awọn fifi sori ẹrọ ti o tọ ati pipẹ.
  • Idabobo ita ati Awọn ọna Ipari (EIFS): RDP ṣe imudara irọrun, resistance oju ojo, ati idena ijakadi ti awọn aṣọ EIFS, pese aabo ati ẹwa ẹwa si awọn odi ita.
  • Awọn idapọ ti ara ẹni: RDP ṣe ilọsiwaju ṣiṣan, ipele, ati ipari dada ni awọn agbo ogun ti ara ẹni, ti o mu ki awọn ilẹ ti o dan ati ipele.
  • Awọn Mortars Tunṣe ati Awọn Atunse: RDP ṣe alekun ifaramọ, agbara, ati idena kiraki ni awọn amọ titunṣe ati awọn imupadabọ, mimu-pada sipo ati okunkun awọn ẹya nja ti o bajẹ.

Redispersible Emulsion Powder (RDP) ṣe ipa pataki ni imudara iṣẹ ati agbara ti awọn ohun elo ikole, idasi si didara ati gigun ti awọn iṣẹ akanṣe ile. Iyipada rẹ, ibaramu, ati imunadoko jẹ ki o jẹ aropo ti o niyelori ni ọpọlọpọ awọn ohun elo ikole.


Akoko ifiweranṣẹ: Kínní-16-2024
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