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Astaamaha midabada kala firdhisan:

Si ka duwan noocyo kale oo badan oo midabyo ah, midabada kala firdhiyaa aad bay biyuhu u milmi karaan marka loo eego midabada kale sida dheeha aashitada. Sidaa darteed, midabada kala firdhisan ayaa inta badan loo isticmaalaa dheehidda xalalka qubeyska.Tamol NNwaxay si fiican u shaqeysaa marka habka rinjiyeynta lagu fuliyo heerkul sare. Gaar ahaan, xalalka ku dhow 120°C ilaa 130°C waxay siinayaan waxqabad wanaagsan si loo kala firdhiyo dheeha, taasoo ka dhigaysa mid si siman u qaybsan oo indhaha soo jiidanaya, halkaTamol NNwaxa laga yaabaa inay keento midab aan sinnayn oo midabkiisu yar yahay heerkulka hoose.

 

Waa maxay isticmaalka midabada kala firdhiyey?Tamol NN

Sababo la xiriira sifooyinkooda kiimikaad iyo hab-dhaqanka kor lagu faahfaahiyay, midabada kala firdhiyaa ayaa caadi ahaan loo isticmaalaa in lagu dheehdo fiilooyinka synthetic, sida polyester, naylon, acrylic, iyo acetate. Noocyo badan oo polyester-ka ah waa hydrophobic oo aan lahayn sifooyin ionic ah, taas oo ka dhigaysa ku dhawaad ​​aan suurtagal ahayn in lagu midabeeyo wax aan ahayn dheeha kala firdhiso.

Intaa waxaa dheer, fiilooyinka polyester-ka kuma balaadhiyaan heerkulka caadiga ah xitaa marka la geliyo qubeyska dheeha, taas oo adkeyneysa in unugyada dheeha ay la falgalaan walxaha. Xataa heerkulka barta karkarinta (100°C), midabaynta polyesterka ayaa leh dhibaatooyin.

 

Sidaa darteed, marka midabaynta polyesterka, midabada kala firdhiso ayaa loo isticmaalaa dheehidda xalalka qubeyska heerkulka 20 ilaa 30 darajo ka sarreeya barta karkaraya ee xalalka dheeha. Midabaynta kala firdhiso waxaa loo yaqaanaa inay ilaashadaan daacadnimadooda molecular heerkulka sare ee looga baahan yahay midabaynta polyesterka. Isla sababtaas awgeed midabada kala firdhisan ayaa loo isticmaalaa in lagu rinjiyeeyo polyester-ka, sidoo kale waxaa loo isticmaalaa in lagu rinjiyeeyo walxaha kale ee aan-ionic-ka ahayn. Xaqiiqda ah in midabada kala firdhiyo aysan lahayn cationic ama anionic malaha waa hantida ugu badan ee la kala saari karo ee midabada kala firdhisan.

 

Midabada kala firdhiso waxa kale oo loo isticmaali karaa resins iyo balaastigga ujeeddooyin midabaynta dusha iyo guud ahaan.

https://www.zjzgchem.com/dispersing-agent-nno-product/

Waqtiga boostada: Meey-30-2022