I-cellulose ether yeyona nto yongeziweyo yegypsum etyatyekiweyo ekhanyayo, edlala indima ebalulekileyo kwigypsum etyatyekiweyo ekhanyayo. Ilungelo alinabungozi kwisiseko seemveliso ze-cellulose ether HPMC, zinokungena ngokukhawuleza kuzo zonke iintlobo zeemveliso zegypsum kwaye aziyi kuvelisa iqoqo, i-porosity yokutyabeka igypsum emva kokunyanga ngaphandle kwempembelelo embi, ukuze kuqinisekiswe ukusebenza kokuphefumla kokutyabeka igypsum. , intshukumo yokuhlehla kodwa ayinayo impembelelo kwi-crystals ye-gypsum yakhula, kunye namandla afanelekileyo e-viscous emanzi ukuqinisekisa ukukwazi ukubopha izinto eziphathekayo, kwindawo yesiseko Ukuphucula kakhulu ukusebenza kokwakhiwa kweemveliso zegypsum, okwenza kube lula ukusabalalisa ngaphandle kokunamathela kwizixhobo.
Njengoko nonke nisazi, kwiminyaka yakutshanje, kunye nophuhliso lwelizwe kunye nohlengahlengiso lwemigaqo-nkqubo, ukuphuhliswa kwezinto zokwakha ezikhuselweyo zokusingqongileyo kuye kwaba yindawo eshushu, njengoko izinto zokutyabeka zangaphakathi zezixhobo ezintsha, ukubethelwa kwe-gypsum kuya kugxininiswa ngakumbi, i-gypsum yokutyabeka. ukubuyisela udaka lwesamente yezinto ezintsha zokugcina amandla, ukhuseleko lokusingqongileyo, uqoqosho, zombini amandla e-samente, kwaye xa kuthelekiswa nesamente yokukhusela okusingqongileyo okunempilo, ixesha elide, amandla okuncamathelayo mkhulu, akulula ukuba ngumgubo, aqhekeki, angenanto. igubu, hayi ukuwisa umgubo kunye nezinye iingenelo, kulula ukuyisebenzisa, ukonga iindleko, ukukhanya ukutyabeka gypsum ikakhulu isekelwe kwisakhiwo udaka umgubo njengento engundoqo, ukukhanyisa perlite okanye amaso iglasi njengoko aggregate, yongeza iintlobo ngeentlobo izinto ezintsha udaka.
Iselulosi ether Inezi ncedo zilandelayo:
Okokuqala, lungelelanisa ukufuma komoya, xa ukufuma kwangaphandle kuphezulu kunomswakama ohambelanayo we-plaster plaster, ngenxa yokuba uxinzelelo lomphunga wangaphandle uphezulu kunoxinzelelo lomphunga ohluthayo, ukukhuthaza ukusebenza kwangaphakathi kwe-adsorption yamanzi, ukulibazisa ukunyuka kwamanzi. ukufuma; Xa ubumanzi bangaphandle bungaphantsi kunobumanzi obuhambelanayo be-gypsum etyatyekiweyo, uxinzelelo lomphunga wangaphandle lungaphantsi kunoxinzelelo lwalo lomphunga ogcweleyo, obangela ukuphuphuma kweemolekyuli zamanzi zangaphakathi. Ngoko ke, inokudlala indima yokulungelelanisa nokulawula ukufuma.
Okwesibini, ukubuyiswa komlilo okusebenzayo. Ubunzima be-molecular ye-dihydrous gypsum yi-172, kunye ne-molecular weight of water yi-18. Xa indlu ye-100m2 idibana nomlilo, xa iqondo lokushisa lifikelela kwi-110 ℃ okanye ngaphezulu, i-dihydrous gypsum iya kukhulula ngokukhawuleza amanzi e-crystal kwi-gypsum ye-semihydrous kwaye emva koko itshintshe ngakumbi. kwigypsum engenamanzi, enokukhulula i-560kg yamanzi. Amanzi anokufunxa ubushushu obuninzi kwinkqubo yokuphuma komphunga. Inokuthintela ngokufanelekileyo ukunyuka ngokukhawuleza kweqondo lokushisa kwegumbi kunye nokuphucula amathuba okubaleka.
Okwesithathu, ukukhuselwa kokusingqongileyo okuluhlaza. I-Gypsum emva konyango olungenabungozi, aluqukethe izinto ezingcolileyo ezinyibilikayo, ukusetyenziswa kwezixhobo zejeli ze-inorganic, izongezo ziyimveliso yokukhusela indalo, eyenziwe nge-plaster light gypsum ayikhululi i-formaldehyde kunye nezinye izinto ezinobungozi, ukukhuselwa kokusingqongileyo okuluhlaza, ukhuseleko kunye nokuphumla.
Okwesine, ukugquma ubushushu, ukonga amandla, ukufunxa isandi, ukuxhathisa impembelelo. I-thermal conductivity ye-plastering plaster yi-0.17W / (MK), ngoko ke i-thermal conductivity ye-plastering plaster yi-20% yodaka lwesamente oluqhelekileyo, olunomphumo othile wokufakelwa kwe-thermal kwaye unokunciphisa ukusetyenziswa kwamandla kwezakhiwo. I-Plastering gesso ikwinkqubo ye-condense, ingaphakathi livelisa umsantsa omncinci, kuba oku kunokunciphisa uxinzelelo lwesandi, kunokuthintela amandla omsindo ukuba asebenze kwakhona, anokuguqula amandla esandi kumandla obushushu, abe nokusebenza kakuhle kokufakwa kwesandi. Ngenxa yesakhiwo se-porous emva kwe-condensation, inokuthatha ngokufanelekileyo amandla empembelelo, ngoko ayiyi kuqhekeka kwaye siwe xa iphantsi kwempembelelo.
Ukutyabeka igypsum nge-cellulose ether inezi mpawu zilandelayo:
I-1, ulwakhiwo olugqwesileyo: ukukrazula lula, okugudileyo, kunokuba ngumbumba, kunye neplastiki.
2, phucula izinga lokugquma i-plaster mortar: xa kuthelekiswa ne-ether ye-cellulose efanayo, izinga lokugquma liye landa kakhulu.
I-3, intsebenzo egqwesileyo yokulwa ne-droop: umaleko oshinyeneyo ukhuhla ulwakhiwo olunye aluhambeli lujinga, ngaphezulu kwamaxesha amabini (ngaphezu kwe-3cm) ukukhuhla akuthontsi, iplastikhi egqwesileyo.
I-4, izinga eliphezulu lokugcinwa kwamanzi: ukwandisa ixesha lokusebenza kwesiseko se-gypsum, ukuphucula ukuxhathisa kwemozulu kwisiseko se-gypsum, ukwandisa amandla okubambisana kwesiseko se-gypsum kunye nesiseko, ukusebenza kakuhle kokubambisana okumanzi, ukunciphisa uthuthu lomhlaba.
I-5, ukuhambelana okuqinileyo: okufanelekileyo kuzo zonke iintlobo zesiseko se-gypsum, ukunciphisa ixesha lokuguga kwe-gypsum, ukunciphisa izinga lokunciphisa ukomisa, udonga alulula ukukhupha idramu, ukuqhekeka.
I-6, intsimi yesicelo kunye nenani: i-gypsum ephantsi ye-plaster elula, i-dosage ecetyiswayo ye-0.18% - 0.25%.
I-gypsum ye-gypsum kunye ne-ether ye-cellulose yenziwe ngomgangatho ophezulu we-cotton esulungekileyo ngokuphendula kwe-etherification, i-ether ye-cellulose engekho i-ionic, iipropati ezizinzileyo zomzimba, aziyi kuvelisa ukusabela kweekhemikhali kunye nezinye izinto eziluhlaza kwaye zivelise izinto ezinobungozi, ezihambelana nokusingqongileyo, akukho mpembelelo kwimpilo yabantu, kwi-gypsum yokutyabeka luhlobo lwezongezo zokonga amandla aluhlaza, i-KIMA ibisoloko ingumbono wokhuselo lokusingqongileyo kunye nokugcinwa kwamandla kwimveliso yenkampani kunye nolawulo, sikhuthaza uphuhliso oluzinzileyo, ekuphenduleni umnxeba wesizwe, iintaba eziluhlaza ziyigolide nesilivere. iintaba, i-KIMA iya kusebenzisa iimveliso ezingcono ze-cellulose ether ukunceda ihlabathi ukudala ukhuseleko lokusingqongileyo lwangaphakathi kwizinto zokutyabeka eludongeni.
Ixesha lokuposa: Feb-18-2022