Redispersible polymer hupfuipfu yakanyunguduka yakanyungudutswa yemvura, inonyanyozivikanwa ndeye ethylene-vinyl acetate copolymer, uye inoshandisa polyvinyl doro sechidziviriro colloid. Naizvozvo, redispersible polymer poda yakakurumbira mumusika weindasitiri yekuvaka. Asi kuvakwa kweiyo redispersible polymer poda haigutsi nekuda kwesarudzo isina kufanira. Saka zvakakosha kuti usarudze upfu hwepolymer hwakakodzera, nzira yekuziva nekusarudza iyo inodhindwazve polima polima?

Nzira yekuziva zvakare dispersible polymer poda

1. Sanganisa redispersible polymer powder nemvura muchiyero che1: 5, fambisa zvakafanana uye rega imire kwemaminitsi mashanu, wozocherechedza sediment pazasi. Kazhinji, iyo shoma sediment, zviri nani kunaka kweRDP.

2. Sanganisaredispersible polymer podanemvura muchiyero che1: 2, funganisa zvakaenzana, rega kumira kwemaminitsi maviri, uye wozovhenganisa zvakaenzana, dururira mhinduro pagirazi rakachena, isa girazi mumumvuri une mhepo, mushure mekuoma zvakakwana, svuura coating pa. girazi uye tarisa iyo polymer firimu. Iyo yakanyanya kujeka iyo iri nani, zviri nani mhando yeredispersible polymer poda iri. Dhonza firimu zvine mwero. Izvo zviri nani iyo elasticity, zviri nani kunaka. Cheka firimu kuita zvidimbu. Yakanga yakanyoroveswa mumvura, uye yakacherechedzwa mushure mezuva 1, iyo isinganyanyi kunyungudika, zviri nani kunaka.

3. Tora huwandu hwakakodzera hwepolymer hupfu hwekuyera, uise mumudziyo wesimbi mushure mekuyera, kupisa kusvika ku500 ℃, uipise pakupisa kwe500 ℃, uye wozoyera mushure mekutonhora. Kureruka kurema, kunowedzera kunaka.

4. Glue test nekatoni bhodhi kana veneer. Tora zvimedu zvidiki zviviri zvekatoni bhodhi kana bhodhi rakatetepa rehukuru hwakaenzana, uye isa glue kune chinongedzo chemuenzaniso. Mushure memaminitsi makumi matatu ekumanikidza chinhu, chibudise kunze kuti chiongororwe. Kana ichigona kusungirirwa zvakasimba uye iyo interface iri 100% yakaparadzwa, yakanaka mhando yeRDP. Kana iyo interface inogona kungoparadzwa zvishoma, zvinoreva kuti simba rekunamatira reRDP harina kunyatsonaka uye mhando haina kukodzera. Kana iyo interface iri yakasimba uye isina kukuvadzwa, zvinoreva kuti yakaderera uye yekunyepedzera.

Nzira yekusarudza redispersible polymer poda

1. Iyo tembiricha yegirazi yekuchinja (TG) yehupfu hwepolymer inodhindwa. Iyo tembiricha yekuchinja kwegirazi chiratidzo chakakosha chehunhu hweRDP. Kune chimwe chigadzirwa, sarudzo inonzwisisika yegirazi yekuchinja tembiricha (TG) yeRDP inobatsira kusimudzira kuchinjika kwechigadzirwa uye kudzivirira matambudziko akadai sekuputika.

2. Re-solubility.

3. Minimum film forming tembiricha (MFFT). Mushureredispersible polymer podainosanganiswa nemvura uye zvakare emulsified, ine zvinhu zvakafanana kune emulsion yepakutanga, ndiko kuti, firimu ichaumbwa mushure mokunge mvura ichibuda. Iyo firimu ine yakakwirira kuchinjika uye yakanakisa kunamatira kune akasiyana substrates.

Iri pamusoro ndiyo nzira yekuziva inodispersible polymer hupfu uye kusarudza redispersible polymer hupfu. Vanhu vari muindasitiri yekuvaka vanoziva RDP seKuvaka Kuvaka Kemikari kukosha. Hunhu hwepolymer poda hunoenderana zvakananga nemhando uye kufambira mberi kwekuvaka. Zvakakosha kusarudza yakakodzera redispersible polymer poda.