Mhedzisiro yeRDP dosage pasimba re putty bonding uye kuramba mvura

Putty chinhu chepasi chinoshandiswa zvakanyanya mumapurojekiti ekushongedza zvivakwa, uye hunhu hwayo hunokanganisa zvakananga hupenyu hwebasa uye mhedzisiro yekushongedza kwemadziro. Simba rekubatana uye kuramba mvura zviratidzo zvakakosha zvekuongorora mashandiro eputty.Upfu hwelatex hunonyungudika zvakare, sezvinhu zvakagadziriswa zve organic polymer, inoita basa guru mukuvandudza mashandiro e putty.

1. Maitiro ekushanda kweupfu hwelatex hunonyungudika zvakare

Upfu hwelatex hunosanganiswazve hupfu hunoumbwa nekupfapfaidzwa kwepolymer emulsion. Hunogona kubatanidzwazve kuti hugadzire sisitimu yekupararira kwepolymer yakagadzikana mushure mekusangana nemvura, iyo inoita basa rekuwedzera simba rekubatanidza uye kuchinjika kweputty. Mabasa ayo makuru anosanganisira:

Kuvandudza simba rekubatanidza: Upfu hwelatex hunodzokororwa hunogadzira firimu repolymer panguva yekuomesa putty, uye hunoshanda pamwe chete nezvinhu zvisina kugadzirwa zve gelling kuti huvandudze kugona kwekubatanidza pakati pechiso.

Kuwedzera kuramba mvura: Upfu hweLatex hunogadzira network inonyungudutsa mvura muchimiro cheputty, zvichideredza kupinda kwemvura uye zvinovandudza kuramba mvura.

Kuvandudza kuchinjika: Zvinogona kuderedza kuputsika kweputty, kuvandudza kugona kwayo kuchinja, uye kuderedza njodzi yekutsemuka.

2. Chidzidzo chekuedza

Zvinhu zvekuyedza

Zvinhu zvekutanga: upfu hweputty hwakavakirwa pasimende

Upfu hwelatex hunonyungudika: ethylene-vinyl acetate (EVA) copolymer latex powder

Zvimwe zvinowedzerwa: chinogocha, chinochengetedza mvura, chinozadza, nezvimwewo.

Nzira yekuedza

Maputty ane madosi akasiyana-siyana ehupfu hwelatex hunonyungudika (0%, 2%, 5%, 8%, 10%) akagadzirwa zvakateerana, uye simba rawo rekubatanidza uye kuramba mvura zvakaedzwa. Simba rekubatanidza rakaonekwa nekuyedza kwekudhonza, uye bvunzo yekudzivirira mvura yakaongororwa nechiyero chekuchengetedza simba mushure mekunyudzwa mumvura kwemaawa makumi maviri nemana.

3. Mhedzisiro nehurukuro

Mhedzisiro yeupfu hwelatex hunonyungudika pakusimbisa kubatana

Mhedzisiro yebvunzo inoratidza kuti nekuwedzera kwemuyero weRDP, simba rekubatanidza reputty rinoratidza maitiro ekutanga achiwedzera uye ozogadzikana.

Kana dosage yeRDP ikawedzera kubva pa0% kusvika pa5%, simba rekubatanidza reputty rinovandudzika zvakanyanya, nekuti firimu repolymer rinoumbwa neRDP rinowedzera simba rekubatanidza pakati pechinhu chepasi neputty.

Ramba uchiwedzera RDP kusvika pamusoro pe8%, kukura kwesimba rekubatanidza kunowanzova kwakati sandara, uye kunotodzikira zvishoma pa10%, izvo zvinogona kunge zvichikonzerwa nekuti RDP yakawandisa ichakanganisa chimiro chakasimba cheputty uye inoderedza simba reinterface.

Mhedzisiro yehupfu hwelatex hunonyungudika pakudzivirira mvura

Zvakabuda muongororo yekuramba mvura zvinoratidza kuti huwandu hweRDP hune simba guru pakuramba mvura kweputty.

Simba rekubatanidza putty isina RDP rakadzikira zvakanyanya mushure mekunyikwa mumvura, zvichiratidza kusakwanisa kupindira mumvura.

Kuwedzerwa kwehuwandu hwakakodzera hweRDP (5%-8%) kunoita kuti putty iumbe chimiro chakasimba cheorganic-inorganic composite, kunowedzera kuramba kwemvura, uye kunovandudza zvakanyanya mwero wekuchengetedza simba mushure memaawa makumi maviri nemana ekunyudzwa.

Zvisinei, kana huwandu hweRDP huchidarika 8%, kuvandudzika kwekusapindirana nemvura kunoderera, izvo zvinogona kunge zvichikonzerwa nekuti zvinhu zvakawanda zve organic zvinoderedza kugona kwe putty kurwisa hydrolysis.

Mhedziso dzinotevera dzinogona kuwanikwa kubva mukutsvagurudza kwekuyedza:

Huwandu hwakakodzera hweupfu hwelatex hunonyungudika(5%-8%) inogona kuwedzera simba rekubatanidza uye kuramba mvura kweputty.

Kushandisa zvakanyanya RDP (>8%) kunogona kukanganisa chimiro chakasimba cheputty, zvichikonzera kudzikira kana kutodzikira kwekuvandudzika kwesimba rekubatanidza uye kuramba mvura.

Chiyero chakakodzera chinofanira kugadziriswa zvichienderana nekushandiswa kweputty kuti pave nekuenzanisa kwakanakisisa pakati pekushanda kwayo nemari.