Isetyenziselwa ntoni iPVA Powder?

I-Polyvinyl alcohol (PVA) powder, ekwabizwa ngokuba yi-PVA resin, yipolymer eguquguqukayo efumana izicelo kuwo wonke amashishini ahlukeneyo ngenxa yeempawu zayo ezizodwa.Nazi ezinye iindlela eziqhelekileyo zokusetyenziswa komgubo wePVA:

1. Izicelo zokuncamathelisa:

I-PVA powder isetyenziswe ngokubanzi njengento ephambili ekuqulunqweni kwe-adhesives kunye ne-glues.Xa inyibilika emanzini, i-PVA yenza isisombululo esicacileyo, esingenambala esincamathelayo esinamandla okudibanisa okugqwesileyo kunye nokunamathela kwiintlobo ezahlukeneyo ze-substrates ezifana nomthi, iphepha, i-textiles, kunye nezixhobo ze-porous.I-PVA yokuncamathelisa isetyenziswa ngokuqhelekileyo ekwenzeni umthi, ukupakishwa kwephepha, ukudibanisa iincwadi kunye nezinye izicelo zokudibanisa.

2. Ubungakanani beLaphu kunye nokuQeda:

Kushishino lwamalaphu, umgubo wePVA usetyenziswa njengearhente yokulinganisa ukunika ukuqina, amandla, kunye nokugudiseka kwimisonto kunye namalaphu.Ukwenziwa kwemilinganiselo esekwe kwiPVA kusetyenziswa kwimisonto yokuluka phambi kokuluka ukuphucula ukusebenza kakuhle kokuluka, ukunciphisa ukuqhawuka komsonto, kunye nokuphucula umgangatho welaphu.Ukongeza, i-PVA inokusetyenziswa njenge-arhente yokugqiba ukongeza ukuxhathisa imibimbi, ukubuyiswa kwe-crease, kunye neempawu zokukhulula umhlaba kwiimpahla ezigqityiweyo.

3. Ukugqunywa kwePhepha kunye nokuPakisha:

I-PVA powder isetyenziswa kwishishini lephepha ukwenza izicelo zokugquma ukunyusa umgangatho wemveliso yephepha kunye ne-paperboard.Iingubo ezisekelwe kwi-PVA zibonelela ngokuprintwa okuphuculweyo, ukunamathela kwe-inki, kunye neempawu zokuthintela, okwenza ukuba zilungele ukuprintwa kwekhwalithi ephezulu kunye nezicelo zokupakisha.Ukongeza, iingubo ze-PVA zinokwandisa amandla, ukuqina, kunye nokuxhathisa ukufuma kwemveliso yephepha, ukuphucula ukuqina kunye nokusebenza kwazo.

4. Izinto zokwakha:

Kwicandelo lokwakha, i-PVA powder ifakwe kwizinto ezahlukeneyo zokwakha zokubambelela kunye nokuqinisa iipropati.I-PVA-based dispersions isetyenziswa ngokuqhelekileyo njenge-agent edibeneyo kwiimveliso ze-cementitious ezifana ne-tile adhesives, i-joint compounds, kunye ne-plaster formulations.I-PVA inokongezwa kwimixube yesamente ukuphucula ukusebenza, ukunamathela, kunye nokumelana nokuqhekeka kumdaka kunye nokusetyenziswa kwekhonkrithi.

5. Iifilimu zePolymer kunye nokuPakisha:

I-PVA powder iqeshwe kwimveliso yeefilimu ze-polymer kunye nezinto zokupakisha ngenxa yeempawu zayo zokwenza ifilimu kunye nokusebenza komqobo.Iifilimu ze-PVA zibonisa ukucaca okugqwesileyo, ukuguquguquka, kunye nokuxhathisa ukufuma, kubenza bafanelekele ukusetyenziswa okufana nokupakishwa kokutya, iifilimu zezolimo, kunye neengubo ezizodwa.Iifilimu ezisekelwe kwi-PVA nazo zinokusetyenziswa njengezinto zokupakisha ezinyibilikayo emanzini kwiimveliso zedosi enye kunye neengxowa zokucoca.

6. Iimveliso zokuKhathalela umntu:

I-PVA powder isetyenziswa ekuqulunqeni ukhathalelo lomntu kunye neemveliso zokuthambisa kwifilimu yayo yokwenza ifilimu kunye neempawu zokuqina.Uqulunqo olusekwe kwi-PVA lufumaneka kwiimveliso ezinjengeejeli zesitayile seenwele, izitshizi zeenwele, iimaski zobuso, kunye neekhrimu zokhathalelo lwesikhumba.I-PVA inceda ekuphuculeni ukuthungwa, ukuzinza, kunye nokusebenza kwezi mveliso, ukuphucula ukuthandwa kwabathengi kunye nokusebenza kakuhle.

Isiphelo:

Ukuqukumbela, i-PVA powder yipolymer eguquguqukayo enoluhlu olubanzi lwezicelo kuwo wonke amashishini.Ukusuka kwizinto zokuncamathelisa kunye nezalukiweyo ukuya kwiingubo zephepha kunye nemathiriyeli yokwakha, i-PVA idlala indima ebalulekileyo ekwandiseni ukusebenza kwemveliso, ukuqina, kunye nokusebenza.Iimpawu zayo zokubambelela, amandla okwenza ifilimu, kunye nokuhambelana nezinye izinto zenza i-PVA powder ibe yinto exabisekileyo yokongeza kwiinkqubo ezahlukeneyo zokuvelisa, igalelo ekuphuhliseni iimveliso ezintsha kunye nekhwalithi ephezulu kumacandelo ahlukeneyo emarike.