Mavuto odziwika bwino komanso njira zozindikiritsira ufa wa latex wopangidwanso

Ndi chitukuko chachangu cha msika zoweta mphamvu yopulumutsa mphamvu, ochulukirachulukira R&D ndi kupanga makampani alowa mu R&D ndi kupanga redispersible polima ufa mankhwala, ndipo owerenga ndi mochuluka malo kusankha, koma nthawi yomweyo, khalidwe la redispersible polima ufa wakhala wosagwirizana. , nsomba zosakaniza ndi zinjoka. Pofuna kuchepetsa ndalama, opanga ena amanyalanyaza miyezo yapamwamba, yonyansa ngati yabwino, ndipo ena amagwiritsa ntchito ufa wamba wa utomoni ngati ufa wa latex wogawanika kuti ugulitse pamitengo yotsika poyerekezera ndi ufa wa latex wopangidwanso, womwe sumangosokoneza msika komanso amanyenga ogula. Koma muzachuma chamsika komwe olimba amapulumuka, khalidwe ndilo gwero lachitukuko chokhazikika, ndipo palibe chovala chachinyengo chomwe chingabise. Mwachidule: khalidwe ndilo mtengo wamtengo wapatali, mtundu ndi chizindikiro cha khalidwe, ndipo msika ndiye muyeso womaliza.

◆Choyamba, tiyeni tifufuze mavuto omwe amadziwika bwino a redispersible latex powder, komanso njira zofala ndi zovulaza za opanga osakhulupirika kuti achepetse ndalama:

◆ Momwe mungasiyanitsire kapena kuzindikira ubwino wa ufa wa latex wopangidwanso? Kuti mupeze njira, yambani ndi kusanthula:

1. Kusanthula kwa zizindikiro zopanga

Zizindikiro ndizo maziko a kuyeza khalidwe la redispersible latex ufa. Mlozera wokhazikika ndi chiwonetsero cha manambala a magwiridwe antchito a ufa wa polima wopangidwanso. Ngati mndandanda wa ufa wa polima wopangidwanso umaposa kapena ukalephera kukwaniritsa muyezo, udzakhala ndi zotsatira zachindunji pakuchita kwake. Zifukwa zazikulu za zisonyezo zachilendo ndizovuta zopanga, monga ukadaulo wopanga m'mbuyo, zida zakale kapena zokalamba, kugwiritsa ntchito zida zotsika mtengo komanso zotsika mtengo, komanso kuyang'anira fakitale mosasamala kwa zinthu zomalizidwa. Kuonjezera apo, opanga ena ali ndi mwayi kuti achepetse ndalama, mosasamala kanthu za khalidwe, komanso zopanda pake. Choncho, m'pofunika kusankha katswiri wodalirika komanso wodalirika wopanga nthawi zonse.

2. Kusanthula kachitidwe koyambira

1. Redispersibility: latex ufa ndi redispersibility wabwino akhoza kusungunuka m'madzi kupanga khola emulsion, ndi tinthu kukula kugawa ndi ofanana ndi emulsion choyambirira. Ufa wa mphira wokhala ndi redispersibility wosauka, womwe sungathe kusinthidwa mofanana, ndipo ukhoza kukhala ndi ma polima osasinthika.

2. Kupanga mafilimu a ufa wa rabara: Mafilimu opanga mafilimu ndi maziko a zinthu zosintha matope monga kumamatira. Kusapanga bwino kwamakanema kumachitika chifukwa cha kuchuluka kwa zinthu zakuthupi kapena zosayenera. Ufa wabwino wopangidwanso wa latex umakhala ndi mawonekedwe abwino opangira filimu kutentha kwachipinda, ndipo iwo omwe ali ndi mawonekedwe osapanga mafilimu pa kutentha kwachipinda nthawi zambiri amakhala ndi zovuta zamtundu wa polima kapena phulusa.

3. Madzi osakanizidwa ndi filimuyi: Redispersible latex ufa uli ndi zinthu zabwino zopanga mafilimu komanso zimakhala ndi madzi abwino. Ufa wa latex wosakanizidwa ndi madzi nthawi zambiri amakhala ndi ma polima osungunuka m'madzi.

3. Kusanthula zotsatira za ntchito

Zimatsimikiziridwa molingana ndi mulingo woyenera:

1. Mphamvu zowuma zomangira ndi mphamvu zomangira madzi: chomangiracho sichili chabwino, ndipo pali mavuto amtundu wa polima kapena phulusa.

2. Kusinthasintha ndi kukana kukhudzidwa: Kusinthasintha sikuli bwino, pali mavuto apamwamba mu polima, ndipo kusinthasintha kumachepa panthawi yogwiritsira ntchito, yomwe ingakhale ndi mapulasitiki.

3. Hydrophobic ndi non-hydrophobic: Pamwamba pake ndi hydrophobic kwambiri, yomwe ingachepetse kugwira ntchito ndi kugwirizanitsa mphamvu ya matope.

4. Kuyenda ndi rheology: Rheology si yabwino, ndipo pali mavuto apamwamba mu ma polima kapena zowonjezera.

5. Kutulutsa thovu ndi kutulutsa thovu: Khalidwe losazolowereka la thovu, mavuto amtundu wa ma polima, phulusa kapena zowonjezera.

◆ Njira zingapo zosavuta zodziwira ufa wa latex wopangidwanso:

1. Maonekedwe njira: kuphimba pang'ono redispersible latex ufa woonda ndi wogawana pamwamba pa mbale woyera galasi ndi ndodo galasi, ikani galasi mbale pa pepala loyera, ndi zooneka fufuzani maonekedwe a particles, zinthu zakunja ndi coagulation .

2. Njira yosungunulira: Tengani ufa pang'ono wa latex ufa ndi kuuyika m'madzi nthawi 5, yambitsani kaye kenako dikirani kwa mphindi zisanu kuti muwone. M'malo mwake, chinthu chocheperako chomwe chimatsikira pansi, chimakhala bwino kwambiri ndi ufa wa latex wopangidwanso.

3. Njira ya Phulusa: Tengani ufa wina wa latex wotayikanso, muyeze, muuike m’chidebe chachitsulo, utenthetseni mpaka madigiri pafupifupi 600, uwotche pa kutentha kwakukulu kwa mphindi pafupifupi 30, uziziziritse mpaka kutentha kwa chipinda, ndi kuyeza. kachiwiri. Zabwino kwa kulemera kopepuka.

4. Njira yopangira mafilimu: Tengani ufa wochuluka wa latex wonyezimira, muyike mumadzi nthawi 2, gwedezani mofanana, muyime kwa mphindi ziwiri, gwedezani kachiwiri, choyamba kutsanulira yankho pa galasi lathyathyathya, kenako galasi Ikani. mumthunzi wodutsa mpweya. Mukatha kuyanika, zindikirani kuti mawonekedwe ake owonekera bwino ndi abwino.