Upfu hwelatex hunosanganiswa nemvura hunoshandiswa pakugadzira emulsion uye polymer binder yakagadzirwa nekupfapfaidza ne vinyl acetate-ethylene copolymer sechinhu chikuru chekugadzira. Kana chikamu chemvura chapera, zvidimbu zve polymer zvinoumba firimu re polymer ne agglomeration, iyo inoshanda se binder. Kana upfu hwelatex hunosanganiswa nemvura hukashandiswa pamwe chete nemaminerari asina kugadzirwa akadai se simende, hunogona kugadzirisa dhaka. Mabasa makuru eupfu hwelatex hunosanganiswa nemvura ndeaya anotevera.
(1) Kuvandudza simba rekubatana, simba rekudhonza uye simba rekukotama.
Upfu hwelatex hunodzokororwa hunogona kuvandudza simba remabond emortar. Kana huwandu hwakawedzerwa, ndipo panokwidzwa simba guru. Simba guru remabond rinogona kudzivirira kudonha kusvika pamwero wakati, uye panguva imwe chete, kushushikana kunokonzerwa nekushanduka kuri nyore kuparadzira nekuburitsa, saka simba remabond rakakosha zvikuru pakuvandudza kuramba kutsemuka. Zvidzidzo zvakaratidza kuti kushanda pamwe chete kwe cellulose ether nepolymer powder kunobatsira kuvandudza simba remabond emortar yesimende.
(2) Deredza kusimba kwesimbi yesimbi, kuitira kuti simende inoputsika ive nekuchinjika kwakati.
Modulus ye elastic ye redispersible latex powder yakaderera, 0.001-10GPa; nepo elastic modulus ye cement mortar yakakwira, 10-30GPa, saka elastic modulus ye cement mortar ichaderera nekuwedzera polymer powder. Zvisinei, mhando nehuwandu hwe polymer powder zvinewo simba pa modulus ye elasticity. Kazhinji, sezvo chiyero che polymer kune simende chichiwedzera, modulus ye elasticity inoderera uye deformability inowedzera.
(3) Kuvandudza kusimba kwemvura, kusimba kwealkali, kusimba kwekukuvara uye kusimba kwekukuvara.
Chimiro che network membrane chakagadzirwa ne polymer chinovhara maburi nemaburi ari mumota yesimende, chinoderedza maburi emuviri wakaoma, uye nokudaro chinovandudza kusapinda kwemvura, kuramba mvura uye kuramba chando kwemota yesimende. Izvi zvinowedzera nekuwedzera kwehuwandu hwe polymer-simende. Kuvandudzika kwekuramba kwekupfeka kwakabatana nerudzi rwe polymer powder uye chiyero che polymer nesimende. Kazhinji, kuramba kwekupfeka kunovandudza sezvo chiyero che polymer nesimende chichiwedzera.
(4) Kuvandudza kuyerera uye kushanda zvakanaka kwedhaka.
(5) Kuvandudza kuchengetwa kwemvura mudhaka uye kuderedza kupwa kwemvura.
Musanganiswa wepolymer unoumbwa nekunyungudutsa upfu hwepolymer hunonyungudika mumvura unoparadzirwa mudura, uye firimu reorganic rinogara richigadzirwa mudura mushure mekuoma. Firimu iri reorganic rinogona kudzivirira kufamba kwemvura, nokudaro richideredza kurasikirwa kwemvura mudura uye richitamba basa mukuchengetedza mvura.
(6) Deredza kutsemuka kwechinhu
Kureba uye kusimba kwesimbi yesimbi yakagadziriswa yepolymer zviri nani pane simbi yesimbi yakagadziriswa yesimbi. Kushanda kwayo kwakapetwa kaviri kupfuura simbi yesimbi yakagadziriswa yesimbi yakarongwa; kusimba kwayo kunowedzera nekuwedzera kwehuwandu hwesimbi yesimbi yepolymer. Nekuwedzera kwehuwandu hwehupfu hwepolymer hwakawedzerwa, polymer inogona kudzivirira kana kunonoka kukura kwematombo, uye panguva imwe chete ine simba rakanaka rekupararira kwesimba.
Nguva yekutumira: Chikumi-20-2023