Umhla wokuPoswa:17,Jul,2023

Iingxaki eziqhelekileyo zokwakhiwa kwesithuba sodonga lwangaphakathi lwe-putty powder luhlanjululwa kwaye lube mhlophe. Ukuze uqonde izizathu zokukrazulwa komgubo wangaphakathi wodonga lwe-putty, kufuneka uqale uqonde ukwakheka kwezinto ezisisiseko kunye nomgaqo wokuphilisa wodonga lwangaphakathi lwe-putty powder. Emva koko, ngokusekwe ekomeni, ukufunxwa kwamanzi, ubushushu, kunye nokoma kwemozulu eludongeni ngexesha lokwakhiwa kwe-putty, chonga ezona zizathu ziphambili zokukrazulwa kodonga lwangaphakathi lwe-putty powder kwaye usebenzise iindlela ezihambelanayo ukusombulula ingxaki ye-putty powder peeling.

一、 Ukwakhiwa kwezinto ezisisiseko zodonga lwangaphakathi lweputty powder:

Awona macandelo asisiseko odongeni olungaphakathi lwe-putty powder lubandakanya: izinto ezibophelelayo ezingaphiliyo (i-calcium engwevu), izihluzi (umgubo onzima we-calcium, umgubo we-talcum, njl.), kunye nezongezo ze-polymer (HPMC, i-polyvinyl alcohol, i-rubber powder, njl.). Phakathi kwazo, udonga lwangaphakathi lwe-putty powder ngokubanzi alufaki isamente emhlophe okanye yongeza kuphela isamente emhlophe. I-latex powder enokuphinda isetyenziswe inesiphumo esincinci kwidosi ephantsi, ngoko ke ayisetyenziswa kakhulu ngaphakathi eludongeni lwe-putty powder ngenxa yemicimbi yeendleko okanye ayifane isetyenziswe.

Ke ngenxa yomba ngefomula yodonga lwangaphakathi lwe-putty powder ngokwayo:

1. Izinto ezidibanisayo ezingenayo i-inorganic, ezifana nokongezwa okuphantsi kwe-gray calcium kunye nomgangatho ophantsi we-gray calcium;

2. Ukongezwa kwamacandelo e-bonding kwii-polymer additives eziphantsi kakhulu okanye ezingahambelani nemigangatho yomgangatho kunokubangela ukuba i-putty powder yangaphakathi ziwe.

二、 Indlela yokunyanga yodonga lwangaphakathi lweputty powder:

Ukunyangwa kweputty eludongeni lwangaphakathi kuxhomekeke kwimpembelelo ye-synergistic ye-lime calcium powder, i-HPMC kunye nezinye izongezo zepolymer phantsi kweemeko zokumanzisa ukuqinisa, ukwenza ifilimu, kunye nokuzinzisa inkqubo yokunyanga.

Umgaqo wokuqina we-gray calcium powder:

Ukomisa kunye nokuqina: Ngethuba lenkqubo yokukrazula, ubuninzi bamanzi buphuma buphuma kwi-powder ye-calcium egrey, yenze inethiwekhi enkulu yeepores ezifanayo kwi-slurry. Amanzi akhululekileyo asele kwi-pores, ngenxa yokuxinana kwamanzi, avelisa uxinzelelo lwe-capillary, okwenza i-gray calcium powder particles idibene ngakumbi, ngaloo ndlela ifumana amandla. Xa i-slurry isomile ngakumbi, esi siphumo sisomelezwa. Ukuqina kwe-Crystallization: Iincinci ze-colloidal ezihlakazekileyo kakhulu kwi-slurry zihlukaniswe ngumaleko wokusabalalisa phakathi kweengqungquthela. Njengoko umxholo wamanzi uyancipha ngokuthe ngcembe, i-diffusion layer iyancipha ngokuthe ngcembe, kwaye ngoko ke amasuntswana e-colloidal anamathela omnye komnye phantsi kwesenzo samandla eemolekyuli, enza inethiwekhi yendawo yezakhiwo ezidibeneyo, ngaloo ndlela zifumana amandla. Ukuqina kwekhabhoni: I-slurry ifunxa igesi ye-CO2 emoyeni, yenze i-calcium carbonate eneneni enganyibilikiyo emanzini. Le nkqubo ibizwa ngokuba yi-carbonation of slurry. Iimpendulo ezidibeneyo zezi zilandelayo:

Ca(OH)2+CO2+H2O→CaCO3+(n+1)H2O

I-calcium carbonate crystals eveliswayo idibene kunye okanye kunye ne-calcium hydroxide particles, eyenza inethiwekhi ye-crystal edibeneyo edibeneyo, ngaloo ndlela iphucula amandla e-slurry. Ukongeza, ngenxa yokwanda kancinane komthamo oqinileyo we-calcium carbonate xa kuthelekiswa ne-calcium hydroxide, udaka oluluqilima olungwevu lwe-calcium luthande ukomelela ngakumbi. 3, Emva kokuba umgubo weputty ugalelwe eludongeni, amanzi kwiputty alahleka ikakhulu ngeendlela ezintathu:

Umphunga wamanzi kumphezulu weputty xa icalcium engwevu kunye nesamente emhlophe zisabela kumgubo ofunxayo weputty kumphezulu wodonga olusisiseko. 3. Impembelelo yezinto zokwakha kwi-powder shed of the putty powder:

Izizathu zokulahlekelwa ngumgubo obangelwa kukwakhiwa zibandakanya: iimeko zokugcinwa kakubi ezibangela ukuba i-putty yome ngokukhawuleza kwaye ingabi namandla okwaneleyo; Udonga olusisiseko lome kakhulu, lubangela ukuba i-putty ilahlekelwe ngamanzi ngokukhawuleza; Ubukhulu obugqithisileyo be-putty kwibhetshi enye.