Redispersible polymer powder (RDP) i-copolymer ye-vinyl acetate kunye ne-ethylene eveliswa ngenkqubo yokumisa isitshizi. Isithako esibalulekileyo kwiintlobo ezahlukeneyo zezicelo zokwakha, ukubonelela ngokunamathela okungcono, ukuguquguquka kunye nokuqina kwiimveliso ezisekelwe kwi-samente. Ukwenziwa kwepolymer powders enokuphinda ihlakazwe kubandakanya amanyathelo amaninzi.
1. Ukukhetha imathiriyeli ekrwada:
I-Vinyl acetate-ethylene copolymer: Eyona nto iphambili ye-RDP yi-copolymer ye-vinyl acetate kunye ne-ethylene. Le copolymer yakhethwa ngenxa yeempawu zayo ezintle zokuncamathelisa kunye nokukwazi ukwandisa ukuguquguquka kunye nokuqina kwezixhobo zesamente.
2. I-Emulsion polymerization:
Inkqubo yokuvelisa iqala nge-emulsion polymerization, apho i-vinyl acetate kunye ne-ethylene monomers i-polymerized phambi kwabaqalisi kunye nezizinzi.
Inkqubo ye-emulsion polymerization ilawulwa ngononophelo ukufumana ubunzima obufunwayo be-molecular, ukwakheka, kunye nesakhiwo se-copolymer.
3. Ukusabela kunye ne-copolymerization:
I-acetate ye-vinyl kunye ne-ethylene monomers isabela phambi kwe-catalyst ukwenza i-copolymer.
Inkqubo ye-copolymerization ibalulekile ekufumaneni iipolymer ezineempawu ezinqwenelekayo, kubandakanya iipropathi ezilungileyo zokwenza ifilim kunye nokuphinda kuphinde kuphinde kuphinde kuphinde kuphinde kwahlulwe.
4. Tshiza ukomisa:
Emva koko i-emulsion iphantsi kwenkqubo yokumisa isitshizi. Oku kubandakanya ukutshiza i-emulsion kwigumbi elishushu, apho amanzi aphuphuma khona, eshiya ngasemva amasuntswana aqinileyo epolymer ephinda ihlakazwe.
Iimeko zokutshiza zokutshiza, ezifana neqondo lokushisa kunye nokuhamba komoya, zilawulwa ngokucophelela ukuze kuqinisekiswe ukubunjwa kwamasuntswana omgubo ocolekileyo ahamba ngokukhululekileyo.
5. Unyango lomphezulu:
Unyango lomphezulu luhlala lusetyenziselwa ukuphucula uzinzo lokugcinwa kunye nokuphinda kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kuphinde kwahlulwe umgubo wepolymer.
Izongezo ze-Hydrophobic okanye ii-colloids ezikhuselayo zihlala zisetyenziswa kunyango lomphezulu ukuthintela ukudityaniswa kwamasuntswana kunye nokwandisa ukusasazwa komgubo emanzini.
6. Ulawulo lomgangatho:
Amanyathelo okulawula umgangatho angqongqo aphunyezwa kuyo yonke inkqubo yokuvelisa. Iiparameters ezifana nokusabalalisa ubungakanani be-particle, ubuninzi bobuninzi, umxholo oseleyo we-monomer kunye nobushushu beglasi benguqu zibekwe esweni ukuqinisekisa ukuhambelana kwemveliso.
7. Ukupakishwa:
Umgubo wepolymer wokugqibela owenziwe ngokutsha upakishwe kwizikhongozeli zobungqina bokufuma ukuthintela ukufunxwa kwamanzi, okunokuthi kuchaphazele kakubi ukusebenza kwawo.
Ukusetyenziswa kweePolymer Powders eziDispersible:
I-RDP isetyenziswe kuluhlu olubanzi lwezicelo zokwakha ezibandakanya i-adhesives tile, i-self-leveling compounds, i-exterior insulation finishing systems (EIFS) kunye ne-cement mortars.
I-powder iphucula iimpawu ezifana nokuchasana kwamanzi, ukuguquguquka kunye nokubambelela, kunceda ukuphucula ukusebenza ngokubanzi kunye nokuqina kwezi zixhobo zokwakha.
ukuququmbela:
I-polymer powder e-redispersible yinto eguquguqukayo kunye nezicelo ezibalulekileyo kwishishini lokwakha. Ukuveliswa kwayo kubandakanya ukukhethwa ngokucophelela kwezinto eziluhlaza, i-emulsion polymerization, ukomisa ukutshiza, ukunyangwa kwendawo kunye nemilinganiselo engqongqo yokulawula umgangatho.
Ukwenziwa kweepolymer powders eziphinda zihlakazwe yinkqubo entsonkothileyo efuna ukuchaneka kunye nengqalelo kwiinkcukacha zokufumana imveliso ekumgangatho ophezulu eneempawu ezifunekayo kwizicelo zokwakha.
Ixesha lokuposa: Dec-18-2023