Yintoni ukwakheka kweekhemikhali zomgubo welatex ophinda uhlakazwe?

I-redispersible polymer powders (RDP) yimixube eyinkimbinkimbi yeepolymers kunye nezongezo ezisetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi kwimveliso yodaka oluxubileyo.Ezi powders zidlala indima ebalulekileyo ekuphuculeni ukusebenza kunye neempawu zezixhobo zokwakha ezahlukeneyo ezifana ne-tile adhesives, i-grouts, i-self-leveling compounds kunye ne-cementitious plasters.

Amalungu aphambili:

Isiseko sepolymer:

I-Ethylene vinyl acetate (EVA): I-copolymer ye-EVA isetyenziswa ngokuqhelekileyo kwi-RDP ngenxa yeempawu zayo ezibalaseleyo zokwenza ifilimu, ukunamathela, kunye nokuguquguquka.Umxholo we-vinyl acetate kwi-copolymer unokutshintshwa ukuze utshintshe iimpawu zepolymer.

I-Vinyl Acetate vs. Ethylene Carbonate: Ngokuxhomekeke kwiimfuno ezithile zesicelo, abavelisi banokusebenzisa i-ethylene carbonate endaweni ye-vinyl acetate.I-ethylene carbonate iye yaphucula ukumelana namanzi kunye nokubambelela kwiimeko ezimanzi.

I-Acrylics: I-Acrylic polymers, kuquka i-acrylics ecocekileyo okanye i-copolymers, isetyenziselwa ukuxhathisa imozulu, ukuqina, kunye nokuguquguquka.Baziwa ngokubonelela ngokunamathela ngokugqwesileyo kwiintlobo ezahlukeneyo ze-substrates.

I-colloid ekhuselayo:

I-Hydroxypropyl methylcellulose (HPMC): I-HPMC yi-colloid ekhuselayo esetyenziswa ngokuqhelekileyo kwi-RDP.Iphucula i-dispersibility ye-polymer particles kunye nokwandisa iipropati ezipheleleyo zomgubo.

I-Polyvinyl alcohol (PVA): I-PVA yenye i-colloid ekhuselayo encedisa ukuzinza kunye nokusabalalisa iinqununu ze-polymer.Ikwadlala indima ekulawuleni i-viscosity ye powder.

Iplastiki:

I-Dibutyl Phthalate (DBP): I-DBP ngumzekelo we-plasticizer ehlala yongezwa kwi-RDP ukuphucula ukuguquguquka kunye nokusebenza.Inceda ukuthoba iqondo lobushushu beglasi yepolymer, iyenze ilastiki ngakumbi.

isigcwalisi:

I-Calcium Carbonate: Iifayili ezifana ne-calcium carbonate zinokudibaniswa ukuze kuphuculwe ubuninzi beepowder kunye nokubonelela ngendlela engabizi kakhulu yokulungelelanisa iimpawu ezifana nokuthungwa, i-porosity kunye ne-opacity.

Izinza kunye ne-antioxidants:

Izinzisi: Ezi zisetyenziselwa ukuthintela ukuthotywa kwepolymer ngexesha lokugcinwa kunye nokucubungula.

I-Antioxidants: I-Antioxidants ikhusela i-polymer ekuthotyweni kwe-oxidative, iqinisekisa ubomi obude be-RDP.

Imisebenzi yecandelo ngalinye:

Isiseko sePolymer: Ibonelela ngeempawu zokwenza ifilimu, ukunamathela, ukuguquguquka kunye namandla omatshini kwimveliso yokugqibela.

I-colloid ekhuselayo: Ukuphucula ukuchithwa kwakhona, ukuzinza kunye nokusabalalisa amaqhekeza e-polymer.

I-Plasticizer: Iphucula ukuguquguquka kunye nokuqhubekeka.

Izigcwalisi: Lungisa iipropathi ezifana nokuthungwa, i-porosity, kunye ne-opacity.

I-Stabilizers kunye ne-antioxidants: Thintela ukuthotywa kwepolymer ngexesha lokugcinwa kunye nokusebenza.

ukuququmbela:

Redispersible polymer powder (RDP) yinto eguquguqukayo kwaye ibalulekileyo kwizinto zokwakha zanamhlanje.Ukubunjwa kwayo kweekhemikhali, kubandakanywa iipolymers ezifana ne-EVA okanye i-acrylic resins, i-colloids yokukhusela, i-plasticizers, i-fillers, i-stabilizers kunye ne-antioxidants, iqulunqwe ngokucophelela ukuhlangabezana neemfuno ezithile zesicelo ngasinye.Ukudibanisa la macandelo kunceda ukuphucula i-powder redispersibility, amandla ebhondi, ukuguquguquka kunye nokusebenza ngokubanzi kwimixube eyomileyo yodaka.