iindaba

1. Umgaqo

Xa i-resin esekwe emanzini igqunywe phezu komphezulu we-substrate, inxalenye ye-arhente yokumanzisa isezantsi kwengubo, edibana nomphezulu oza kumanziswa, icandelo le-lipophilic lifunxwa kumphezulu oqinileyo, kwaye iqela le-hydrophilic lidlulela ngaphandle emanzini. Uqhagamshelwano phakathi kwamanzi kunye ne-substrate luba luqhagamshelwano phakathi kwamanzi kunye neqela le-hydrophilic le-arhente yokumanzisa, okwenza isakhiwo sesandwich kunye ne-arhente yokumanzisa njengomaleko ophakathi. Yenza kube lula ukusasaza isigaba samanzi, ukuze kufezekiswe injongo yokumanzisa. Enye inxalenye ye-arhente yokumanzisa esekwe emanzini ikhona kumphezulu wolwelo, iqela layo le-hydrophilic lidlulela kumanzi olwelo, kwaye iqela le-hydrophobic livezwa emoyeni ukuze lenze umaleko we-monomolecular, onciphisa uxinzelelo lomphezulu wengubo kwaye ukhuthaze ukumanzisa ngcono kwengubo.

2. Amava athile ekusebenziseni izinto zokumanzisa ezisekelwe emanzini

Kwimveliso yokwenyani, xa kujongwa amandla okumanzisa e-resin, kufuneka kuqwalaselwe kungekuphela nje ubukhulu boxinzelelo lwayo lomphezulu oluzinzileyo, kodwa nobukhulu boxinzelelo lwomphezulu oluguquguqukayo, kuba kwinkqubo yokugquma i-resin, phantsi kwesenzo soxinzelelo, ngeli xesha. Uxinzelelo lwomphezulu oluguquguqukayo luphantsi, kokukhona ukumanzisa kubhetele. Ngeli xesha, i-arhente yokumanzisa ikhawuleza yenza umaleko we-monomolecular kumphezulu wogquma, oko kukuthi, ukwakheka ngokukhawuleza komaleko we-molecular oriented, kokukhona ivumela ukumanzisa. I-arhente yokumanzisa equlethe i-fluorine inciphisa uxinzelelo lomphezulu oluzinzileyo, kwaye i-arhente yokumanzisa esekwe kwi-silicone inokunciphisa uxinzelelo lomphezulu oluguquguqukayo kakuhle. Ke ngoko, kwinkqubo yokusetyenziswa okusebenzayo, kubaluleke kakhulu ukukhetha i-arhente yokumanzisa efanelekileyo ngokwemeko yokwenyani.

3. Indima yabasasazi abasebenzisa amanzi

Umsebenzi wezinto ezisasaza amanzi kukusebenzisa izinto ezimanzisa nezokusasaza ukunciphisa ixesha namandla afunekayo ukugqiba inkqubo yokusasazeka, ukuzinzisa ukusasazeka kwemibala esasazekileyo, ukuguqula iipropati zomphezulu weenxalenye zemibala, kunye nokulungisa ukuhamba kweenxalenye zemibala. Oku kuboniswe ngokukodwa kwezi nkalo zilandelayo:

1. Phucula i-gloss kwaye wonyuse isiphumo sokulinganisa. I-gloss ixhomekeke kakhulu ekusasazekeni kokukhanya kumphezulu wengubo (oko kukuthi, inqanaba elithile lokuthamba. Ewe, kuyimfuneko ukumisela ukuba ithamba ngokwaneleyo ngesixhobo sokuvavanya, kungekuphela nje inani kunye nemilo yee-particles eziphambili, kodwa kunye nokudibana kwazo. indlela), xa ubungakanani bee-particle bungaphantsi kwe-1/2 yokukhanya kwesiganeko (eli xabiso aliqinisekanga), liya kubonakala njengokukhanya okujijekileyo, kwaye i-gloss ayizukwanda. Ngokufanayo, amandla okugubungela axhomekeke ekusasazekeni ukuze anike amandla okugubungela ayintloko akayi kwanda (ngaphandle kokuba i-Carbon black ifunxa ukukhanya, libale ngee-pigments eziphilayo). Qaphela: Ukukhanya kwesiganeko kubhekisa kuluhlu lokukhanya okubonakalayo kwaye i-leveling ayilungile; kodwa nikela ingqalelo ekunciphiseni inani lee-particles eziphambili, okunciphisa i-viscosity yesakhiwo, kodwa ukwanda komphezulu othile kuya kunciphisa inani le-resin zasimahla. Nokuba kukho i-balance point ayilungile. Kodwa ngokubanzi, i-leveling ye-powder coatings ayilungile kangangoko.

2. Nqanda umbala odadayo ekudubuleni.

3. Phucula amandla okufaka imibala Qaphela ukuba amandla okufaka imibala akaphezulu kangangoko kwinkqubo yokwenza imibala ijike ngokuzenzekelayo.

4. Nciphisa i-viscosity kwaye wonyuse umthwalo we-pigment.

5. Ukunciphisa ukutyibilika kwe-flocculation kunje, kodwa okukhona isuntswana lincinci, kokukhona amandla omphezulu ephezulu, kwaye

Kufuneka i-dispersant enamandla aphezulu okufunxa, kodwa i-dispersant enamandla aphezulu okufunxa inokubangela iziphumo ezimbi ekusebenzeni kwefilimu yokugquma.

6. Isizathu sokwandisa uzinzo lokugcina izinto sifana nesichazwe apha ngasentla. Xa uzinzo lwe-dispersant lunganele, uzinzo lokugcina izinto luya kuba lubi (ewe, akukho ngxaki kumfanekiso wakho).

7. Yandisa uphuhliso lombala, yandisa ukugcwala kombala, yandisa ukucaca (ii-pigments eziphilayo) okanye amandla okufihla (ii-pigments ezingaphiliyo).