U ka khetha phofo ea polymer e ka sebelisoang hape joang?

U ka khetha phofo ea polymer e ka sebelisoang hape joang?

Ha ho na tsela e sebetsang ntle le ho kenya sehlahisoa tekong.

Khetho ea phofo e nepahetseng ea latex e ka sebelisoang e lokela ho nahana ka lintlha tse latelang:

1. Mocheso oa phetoho ea khalase ea phofo ea polymer e ka sebelisoang hape.

Mocheso oa phetoho ea khalase ke hore polymer e bonts'a elasticity;ka tlas'a mocheso ona, polima e bontša brittleness.Mocheso oa phetoho ea khalase ea phofo e akaretsang ea latex ke -15±5℃, 'me phofo ea latex ea baetsi ba kamehla ha e le hantle ha e na index ena.Bothata.Mocheso oa phetoho ea khalase ke pontšo e ka sehloohong ea thepa ea 'mele ea phofo ea latex e redispersible.Bakeng sa sehlahisoa se itseng, khetho e utloahalang ea mocheso oa phetoho ea khalase ea phofo ea latex e redispersible e thusa ho ntlafatsa ho feto-fetoha ha sehlahisoa le ho qoba mathata a kang ho senya.

2. Mocheso o fokolang oa ho etsa filimi

Ka mor'a hore phofo ea latex e redispersible e kopane le metsi 'me e khutlisetsoe emulsified, e na le thepa e tšoanang le emulsion ea pele, ke hore, filimi e tla thehoa ka mor'a hore metsi a fetohe mouoane.Filimi ena e na le maemo a phahameng a fetohang le ho khomarela hantle ho li-substrates tse fapaneng.E fapaneng Mocheso o fokolang oa ho etsa filimi oa phofo ea latex e hlahisoang ke moetsi e tla ba e fapaneng ka tsela e itseng.Lenane la bahlahisi ba bang ke 0°C, mme lenane la bahlahisi ba bang ke 5°C. Ha feela mocheso o etsang filimi oa phofo ea latex o nang le boleng bo botle o pakeng tsa 0 le 5°C pakeng tsa.

3. Redissolvability.

Pole ea latex e ka tlase e qhalakanhang ha e qhibilihe ka mokhoa o itseng kapa ha e khone ho qhibiliha ka metsing a batang kapa metsing a alkaline.

4. Theko.

Lintho tse tiileng tsa emulsion ke hoo e ka bang 53%, ho bolelang hore hoo e ka bang lithane tse 1,9 tsa emulsion li phekoloa ka tonne e le 'ngoe ea phofo ea rabara.

Haeba ho baloa metsi a 2%, joale lithane tse 1.7 tsa emulsion li sebelisoa ho etsa tonne e le 'ngoe ea phofo ea rabara, hammoho le 10% ea molora,

Ho nka lithane tse ka bang 1.5 tsa emulsion ho hlahisa tone e le 'ngoe ea phofo ea rabara.

5. Tharollo ea metsi ea phofo ea latex

E le hore a leke viscosity eaphofshoana ea polima e ka qhaloang hape, bareki ba bang ba ne ba qhala phofo ea latex ka metsing ’me ba e sisinya ka letsoho ho e leka, ’me ba fumana hore ha ho na ho khomarela, ba nahana hore hase phofo ea sebele ea latex.

Ha e le hantle, phofo ea morao-rao ea latex ka boeona ha e khomarele, ke phofo e entsoeng ka mor'a hore emulsion ea polymer e omisitsoe.

Ha redispersible latex phofo e tsoakane le metsi 'me e boetse e emulsified, e na le thepa e tšoanang le emulsion ea pele, ke hore, filimi e entsoeng ka mor'a hore metsi a fetohe mouoane e na le maemo a phahameng a ho feto-fetoha ha maemo' me e na le ho khomarela hantle haholo ho substrates tse sa tšoaneng.

E ka boela ea ntlafatsa ho boloka metsi a thepa, ho thibela seretse sa samente hore se se ke sa thatafala ka potlako, se omme le ho phunyeha;eketsa polasetiki ea seretse le ho ntlafatsa mosebetsi oa kaho.Phasano, thepa ea ho etsa lifilimi, ho tenyetseha (ho kenyeletsoa teko ea ho hula, hore na matla a pele a tšoaneleha) ka kakaretso, liphetho tsa liteko li tla fumaneha kamora matsatsi a 10.