Redispersible polymer hmoovyog cov dej-soluble redispersible hmoov, feem ntau yog ethylene-vinyl acetate copolymer, thiab siv polyvinyl cawv raws li kev tiv thaiv colloid. Yog li ntawd, redispersible polymer hmoov yog nrov heev nyob rau hauv kev tsim kho kev lag luam kev lag luam. Tab sis kev tsim kho cov nyhuv ntawm redispersible polymer hmoov yog qhov tsis txaus siab vim qhov kev xaiv tsis tsim nyog. Yog li nws yog ib qho tseem ceeb heev uas yuav tau xaiv txoj cai redispersible polymer hmoov, yuav ua li cas txheeb xyuas thiab xaiv cov respersible polymer hmoov?

Txoj kev los txheeb xyuas cov khoom siv rov ua dua polymer hmoov

1. Sib tov redispersible polymer hmoov nrog dej nyob rau hauv ib tug ratio ntawm 1: 5, do tusyees thiab cia nws sawv ntsug rau 5 feeb, ces saib cov sediment nyob rau hauv qab txheej. Feem ntau, cov sediment tsawg dua, qhov zoo dua ntawm RDP.

2. Sib tovredispersible polymer hmoovNrog dej nyob rau hauv ib tug ratio ntawm 1: 2, do tusyees, cia sawv ntsug rau 2 feeb, thiab ces do tusyees, ncuav cov tshuaj rau ntawm ib tug ca huv si iav, muab lub khob nyob rau hauv ib tug ventilated ntxoov ntxoo, tom qab tag nrho qhuav, tev tawm lub txheej. iav thiab saib cov yeeb yaj kiab polymer. Qhov ntau pob tshab nws yog, qhov zoo dua ntawm redispersible polymer hmoov yog. Rub cov yeeb yaj kiab me ntsis. Qhov zoo ntawm elasticity, qhov zoo dua qhov zoo. Txiav cov zaj duab xis rau hauv ib daim hlab. Nws tau tsau rau hauv dej, thiab pom tom qab 1 hnub, qhov tsawg yaj, qhov zoo dua.

3. Siv cov hmoov polymer uas tsim nyog rau qhov hnyav, muab tso rau hauv lub thawv hlau tom qab hnyav, ua kom kub txog li 500 ℃, kub hnyiab ntawm 500 ℃, thiab tom qab ntawd hnyav tom qab txias. Qhov sib dua qhov hnyav, qhov zoo dua.

4. Cov kua nplaum kuaj nrog lub thawv ntawv lossis veneer. Siv ob daim me me ntawm lub thawv ntawv lossis nyias lub rooj tsav xwm sib npaug, thiab siv cov kua nplaum rau qhov sib txuas ntawm cov qauv. Tom qab 30 feeb ntawm lub siab ntawm cov khoom, coj nws tawm mus kuaj. Yog tias nws tuaj yeem ua tau ruaj khov thiab qhov cuam tshuam yog 100% rhuav tshem, nws yog qhov zoo ntawm RDP. Yog tias lub interface tsuas tuaj yeem raug rhuav tshem ib feem, nws txhais tau hais tias lub zog nplaum ntawm RDP tsis zoo heev thiab qhov zoo tsis tsim nyog. Yog hais tias lub interface tsis zoo thiab tsis puas, nws txhais tau hais tias nws yog inferior thiab cuav.

Txoj kev xaiv redispersible polymer hmoov

1. Lub iav hloov pauv kub (TG) ntawm redispersible polymer hmoov. Lub iav hloov pauv kub yog ib qho tseem ceeb qhia txog lub cev ntawm RDP. Rau ib qho khoom tshwj xeeb, kev xaiv tsim nyog ntawm cov iav hloov pauv kub (TG) ntawm RDP yog qhov zoo los txhim kho qhov yooj yim ntawm cov khoom thiab tsis txhob muaj teeb meem xws li tawg.

2. Re-solubility.

3. Yam tsawg kawg nkaus zaj duab xis tsim kub (MFFT). Tom qabredispersible polymer hmoovyog tov nrog dej thiab re-emulsified, nws muaj cov khoom zoo sib xws rau cov thawj emulsion, uas yog, ib zaj duab xis yuav raug tsim tom qab dej evaporates. Cov yeeb yaj kiab muaj qhov yooj yim thiab zoo heev adhesion rau ntau yam substrates.

Cov saum toj no yog cov txheej txheem ntawm kev txheeb xyuas redispersible polymer hmoov thiab xaiv redispersible polymer hmoov. Cov neeg nyob rau hauv kev tsim kho kev lag luam paub RDP raws li Kev Tsim Kho Cov Khoom Siv Hluav Taws Xob tseem ceeb. Qhov zoo ntawm cov hmoov polymer yog ncaj qha ntsig txog qhov zoo thiab kev txhim kho ntawm kev tsim kho. Nws yog ib qho tseem ceeb uas yuav tau xaiv qhov tsim nyog redispersible polymer hmoov.