Ubuchule bemvelaphi
Umgubo webhurabha ophinda udityaniswe yipowder emhlophe eqinileyo ecutshungulwa ngokutshiza nokomisa ilatex ekhethekileyo. Isetyenziswa kakhulu njengesongezelelo esibalulekileyo kwi "mortar exutywe amawaka" kunye nezinye izongezo zemortar ezixutywe ngamanzi kwizixhobo zokwakha zobunjineli bokugquma udonga lwangaphandle. . Umgubo welatex ophinda usetyenziswe rhoqo yi-copolymer ye-vinyl acetate, engumgubo omhlophe onokutyibilika ngokukhululekileyo kwaye ungasasazeka kakuhle emanzini ukuze wenze i-emulsion ezinzileyo enokusebenza okufanayo nelatex yokuqala. Njengezinto eziyimfuneko kwimveliso zemortar ezixutywe ngamanzi, umgubo welatex ophinda udityaniswe ngamanzi udlala indima ebalulekileyo kwimortar exutywe ngamanzi. Ingaphucula amandla ebond kunye nokuhlangana kwezinto. Iphucula amandla okugoba elastiki kunye namandla e-flexural ezinto. Iphucula ukumelana nokuqandisa kwento. Iphucula ukumelana nemozulu, ukuqina, ukumelana nokuguguleka kwezinto. Iphucula i-hydrophobicity yezinto kwaye inciphise ukufunxwa kwamanzi. Iphucula ukusebenza kakuhle kwaye inciphise ukushwabana kwezinto. Ingathintela ngempumelelo ukuqhekeka. (I) Iphucula amandla ebond kunye nokuhlangana
Kwiimveliso zesamente eyomileyo, kuyimfuneko kakhulu ukongeza umgubo werabha ophinda uqhekeke. Kucacile kakhulu ukuphucula amandla okubopha kunye nokuhlangana kwezinto. Oku kungenxa yokungena kwamasuntswana epolymer kwi-pores kunye ne-capillaries ye-matrix yesamente, kunye nesiphumo samandla amahle okubambisana emva kokufuma ngesamente. Ngenxa yokunamathela okuhle kwe-polymer resin ngokwayo, inokuphucula ukunamathela kweemveliso zesamente kwi-substrates, ngakumbi ukunamathela kwe-inorganic binders ezifana nesamente kwi-organic substrates ezifana nomthi, i-fiber, i-PWC, kunye ne-PS. Ukuphuculwa kokusebenza kakubi kunesiphumo esicacileyo ngakumbi.
Ukuphucula ukugoba kunye nokumelana nokuxinana
Kwi-skeleton eqinileyo eyenziwe emva kokuba i-samente mortar imanziswe ngamanzi, ifilimu ye-polymer iyanwebeka kwaye iqinile, kwaye isebenza njenge-joint eshukumayo phakathi kwamasuntswana e-samente mortar, enokumelana nemithwalo ephezulu yokuguquguquka kwaye inciphise uxinzelelo. Ukumelana okuphuculweyo kokuxinana nokugoba
Phucula ukuxhathisa impembelelo
Umgubo welatex ophinda uqhekeke yi-thermoplastic resin. Ifilimu ethambileyo egqunywe phezu kwamasuntswana e-mortar inokufunxa impembelelo yamandla angaphandle kwaye iphumle ngaphandle kokuqhekeka, ngaloo ndlela iphucula ukumelana nempembelelo ye-mortar.
Ukuphucula ukungoyiki kwamanzi kunye nokunciphisa ukufunxwa kwamanzi
Ukongeza umgubo welatex ophinda uqhekeke kunokuphucula ulwakhiwo lwesamente. I-polymer yayo yenza inethiwekhi engenakuguqulwa ngexesha lenkqubo yokufunxa isamente, ivale i-capillary kwijeli yesamente, ivale ukufunxwa kwamanzi, ithintele ukungena kwamanzi, kwaye iphucule ukungakwazi ukungena kwamanzi.
Phucula ukumelana nokuguguleka kunye nokuqina
Ukongeza umgubo webhurabha we-휘 ophinda uqhekeke kunokunyusa uxinano phakathi kwamasuntswana e-samente mortar kunye nefilimu ye-polymer. Ukuphuculwa kwamandla adibeneyo kuphucula amandla e-mortar okumelana noxinzelelo lokucheba, kunciphisa izinga lokuguguleka, kuphucula ukumelana nokuguguleka, kwaye kwandisa ubomi benkonzo ye-mortar.
Phucula uzinzo lokuqandisa nokunyibilikisa izinto kwaye uthintele ngokufanelekileyo ukuqhekeka kwezinto
Umgubo we-latex ophinda uqhekeke, isiphumo seplastiki se-resin yayo ye-thermoplastic sinokoyisa umonakalo obangelwe kukwanda kobushushu kunye nokuxinana kwezinto zesamente ezibangelwa kukutshintsha kotshintsho lobushushu. Ukoyisa iziphene zesamente elula, njengokuncipha okukhulu okomileyo kunye nokuqhekeka okulula, kunokwenza izinto zibe bhetyebhetye ngakumbi, ngaloo ndlela kuphuculwe uzinzo lwexesha elide lwezixhobo. Nangona kunjalo, kukho iingxaki ezithile kwinkqubo yokuvelisa umgubo we-latex ophinda uqhekeke kubugcisa bangaphambili, okubangela ukuba amasuntswana e-latex angalingani kwaye alungile ngokwaneleyo, kwaye ukuhlangana kudla ngokuvela ngexesha lokuveliswa, ukuthuthwa kunye nokugcinwa. Ngaloo ndlela kuchaphazela isiphumo sokusetyenziswa kwayo.
Le nkqubo inokufezekiswa ngezi zisombululo zobugcisa zilandelayo: inkqubo yokuvelisa umgubo we-latex ophinda usasazwe umva, ezi zinto zilandelayo zenziwe ngokwepesenti yobunzima obuqhotyoshelweyo be-polymer emulsion 72-85%; i-colloid ekhuselayo 4-9%; i-arhente yokukhulula 11-15%; izongezo ezisebenzayo 0-5%; iveliswe yile nkqubo ilandelayo.
a, ukulungiswa kwe-colloid ekhuselayo: kwi-kettle yokusabela, umgubo we-colloid okhuselayo wobungakanani bokuxutywa awuxutywanga namanzi kwaye ufudunyezwe ukuze uguqulwe ube yiglu, kwaye kongezwa i-defoamer, ifudunyezwe kwaye igcinwe ifudumele ukwenza i-colloid ekhuselayo ebonakalayo, ukuze i-viscosity ifikelele kwi-2500as, iqine Umxholo ufikelela kwi-19.5-20.5%.
b. Ukulungiswa kokusasazwa: beka i-colloid ekhuselayo elungisiweyo kwiketile yokulungiselela, uze wongeze i-polymer emulsion yesixa sokudibanisa, udibanise ngokulinganayo, uze wongeze i-defoamer uze wongeze amanzi ukuze ulungise i-viscosity ibe yi-70-200Mas, kwaye umxholo oqinileyo ufikelela kwi-39%-42%, ufudumale uye kwi-50-55°
C, yokusetyenziswa;
C, ukomisa nge-cloud spray: vula inqaba yokomisa nge-cloud spray, xa ubushushu bokungena kwe-feed phezulu kwinqaba yokomisa nge-spray cloud cloud bufudunyezwa ukuya kuthi ga kwi-140-150 DEG C, ukusasazwa okulungisiweyo kuhanjiswa kwindawo yokomisa nge-feed phezulu kwinqaba yokomisa nge-screw pump. Kwi-feed port, ulwelo lokusasazwa lufakwa kwi-micro-droplets enobubanzi be-droplet ye-10-100 microns nge-high-speed centrifugal atomization disc kwi-feed port. Kwangaxeshanye, ama-micro-droplets afudunyezwa ngokukhawuleza ngokuhamba komoya obushushu obuphezulu, kwaye kwangaxeshanye, i-release agent yongezwa kwi-high-temperature airflow. , xa ama-micro-droplets efudunyezwa ukuvelisa i-viscosity, i-release agent inamathela kwi-micro-droplets ngexesha, kwaye emva koko amanzi kuma-micro-droplets akhutshwa ngokukhawuleza abe ngumoya obushushu obuphezulu ukuze enze umxube wegesi oqinileyo;
d, ukupholisa kunye nokwahlukanisa: gcina ubushushu bomoya ophumayo kwindawo yomoya yokufutha yomoya kwi-79°C-81°C, kwaye umxube wegesi oqinileyo uthunyelwa ngokukhawuleza ukusuka kwindawo yomoya esezantsi kwenqaba yokomisa yomoya, uze ungeniswe kwisihluzo esikhulu sebhegi emva kokupholisa. Umgubo okwindlela yomoya uyahlulwa kwaye umgubo owahlulweyo uyahluzwa kwaye uhluzwe ukuze kufunyanwe imveliso egqityiweyo yomgubo welatex ochithwe ngokutsha. Iimpawu ezithile Yongeza inani elithile lamanzi acocekileyo ngokulingana ne-reactor ecocekileyo, nyusa ubushushu bube malunga nama-50°C, vula indlela yokuxuba, yongeza umgubo we-colloid okhuselayo ngokwe-25% yenani lamanzi ongezelelweyo kwi-reactor, kwaye inkqubo yokongeza kufuneka icothe. Yongeza ukuthintela umgubo ukuba ungahlangani emanzini. Musa ukuyongeza eludongeni olusecaleni lwe-reactor. Emva kokuba ukongeza kugqityiwe, yongeza i-defoamer elingana ne-1% yenani lilonke. Kucetyiswa ukusebenzisa i-defoamer esekelwe kwi-silicone. Gquma umngxuma wokondla kwaye ufudumale ukuya kuthi ga kwi-95°C. Xa igqunywe nge-insulation kangangeyure e-1, ulwelo olukwi-reactor kufuneka lwenziwe lube yiglu ecacileyo egobileyo, ngaphandle kwamasuntswana amhlophe, iisampulu, uvavanyo lwe-viscosity kunye nomxholo oqinileyo, odinga i-viscosity ukufikelela malunga ne-2500as, kunye nomxholo oqinileyo ukufikelela kwi-19.5 ~ 20.5%. Yongeza i-colloid yokukhusela elungisiweyo kwiketile yokuxuba, uze wongeze i-polymer emulsion ngokulinganisela, xuba i-colloid yokukhusela kunye ne-emulsion ngokulinganayo, kwaye wongeze i-defoamer ngokufanelekileyo, ngokubanzi ilingana malunga ne-0.1% yenani lilonke, kwaye i-defoamer kufuneka isetyenziswe nguwe.
Isixhobo sokufaka igwebu, uze wongeze amanzi ukuze ulungise i-viscosity ibe yi-70-200pas, kunye nomxholo oqinileyo ube yi-39%-42%. Nyusa ubushushu bube yi-5055C. Uvavanyo lokuvavanya iisampulu, lulungele ukusetyenziswa.
Amanzi akwiithontsi aza komiswa ngokukhawuleza ngumoya ohamba ngobushushu obuphezulu, uze emva koko umxube wegesi oqinileyo ukhutshwe ngokukhawuleza kwinqaba yokomisa, ugcine ubushushu bomoya ophumayo kwindawo engaphantsi yomoya wesixhobo sokomisa kwi-79 ° C -81 ° Co. Umxube wegesi oqinileyo ukhokelwa kwisixhobo sokomisa. Emva kokushiya, yongeza umoya owomileyo ongafumanga kwi-5 ° C ukuze uphole, kwaye umgubo ohambayo womoya ungeniswa kwisihluzi esikhulu sebhegi, kwaye umgubo ohambayo womoya wahlulwe ngeendlela ezimbini zokwahlulahlula isivunguvungu kunye nokwahlulahlula ukuhluza. , Umgubo owahlulweyo uyahluzwa kwaye uhluzwe ukuze kufunyanwe iziqithi ze-latex powder eziphinda zichithwe.
Thutha i-1,000 kg yolwelo olusasazekayo olunomxholo oqinileyo we-42% uye kwinqaba yokomisa ngoxinzelelo oluthile, kwaye wongeze i-51 kg yearhente yokukhulula ngokwendlela engentla ngaxeshanye, yomise ngokutshiza kwaye wahlukanise into eqinileyo kunye negesi, kwaye ufumane imveliso yomgubo we-461 kg enobunono obufanelekileyo.
Ixesha leposi: Februwari-27-2023