RDP no ka putty pā pā

Hoʻopili houPolimer pauda RDP/VAE, He mea hoʻomaloʻo hoʻomaloʻo emulsion kūikawā i hana ʻia me ka ethylene a me ka vinyl acetate copolymer, ma muli o kona hiki ke hoʻopaʻa kiʻekiʻe a me nā ʻano ʻokoʻa like ʻole, e like me: ke kūpaʻa wai, ke kūkulu ʻana a me ka insulation wela, no laila, he ākea loa o nā noi.

he aha ke kuleana o RDPhiki ke pāʻani i lokoputty pā?

1, hoʻomaikaʻi i ka adhesion a me ka mechanical waiwai oputty pā. Hoʻopili houPolimer pauda RDP/VAEi ka hui 'ana me ka wai hiki ke ho'opuehu koke 'ia i loko o ka emulsion, a loa'a nā waiwai like me ka emulsion mua, 'o ia ho'i, hiki i ka wai evaporation ke hana i kahi ki'i'oni'oni, he ki'eki'e ka ma'alahi o kēia ki'i, ke kū'ē ki'eki'e a me ka ho'opili ki'eki'e i nā mea like'ole.

2, hoʻomaikaʻi i ka cohesion oputty pā, ke kū'ē alkali maika'i, ke kū'ē kū'ē, ho'onui i ka ikaika flexural.

3, hoʻomaikaʻi i ka wai kūpaʻa a me ka permeability oputty pā.

4, hoʻomaikaʻi i ka mālama ʻana i ka waiputty pā, hoʻonui i ka manawa wehe.

5, hoʻomaikaʻi i ka hopena hopena a hoʻonui i ka lōʻihi oputty pā.

In putty pāhikiʻO ka pauka polymer hiki ke hoʻokuʻu ʻiahe mea hoʻohui koʻikoʻi, ma ka ʻōlelo maʻamau, hiki ke hoʻohui ʻia ka putty pā i loko a i ʻole. Akā ma ka pā o wahoputty pāpono e hoohui i ka hoopuehu opolimer pauda, hiki i ka hoopuehu opolimer paudama kaputty pāhe paʻakikī maikaʻi a me ka ikaika hope, e pale i ka hiki ʻana mai o ka pauka hope a me nā pilikia ʻē aʻe.

Nīnau pinepine nā mea kūʻai aku e pili anaputty pā, e like meputty pāmaʻalahi ka wehe ʻana i ka pauda, ​​ka pauda koʻikoʻi, a i ʻole ka ikaika liʻiliʻi a pēlā aku. Hana nā mea a pauputty pāPono e hoʻohui i ka cellulose ether, ʻaʻole nui nā mea hoʻohana e hoʻohui i ka redispersiblepolimer pauda. No ka mea e hoʻonui i ke kumukūʻai oputty pā, No laila i mea e mālama ai i ke kumukūʻai, nui nā mea kūʻai aku ʻaʻole e hoʻohui, ʻo ia ke kumu e maʻalahi ai ka putty i ka pauka i ka pilikia koʻikoʻi kī!

Celluloseeterahiki ke komo i ka makū ke hoʻonui ʻia e ka wai. ʻO ka hana nui o ka cellulose ka mālama ʻana i ka wai, akā e mālieRDPpauda ma hope o ka manawa lōʻihi. ʻO kēia ʻano putty he ʻoluʻolu, kiʻekiʻe ka nui o ka lawe ʻana i ka wai, maʻalahi ka pauka, ʻaʻohe ikaika, ʻaʻohe elasticity. No ka hoʻomaikaʻi ʻana i ka putty ma luna o nā pilikia hiki ke hoʻoponopono i ke ʻano putty, ka hoʻohui kūpono o kekahi i hoʻopuehu ʻiapolimer paudae hoʻomaikaʻi i ka ikaika hope o kaputty pā.

Putty i ke kaʻina hana inā hiki iā ʻoe ke hoʻohui i lawaRehoopuehuible polimer pauda, a i ʻole e hoʻohana i ka putty haʻahaʻa haʻahaʻapolimer pauda, he aha ka hopenae pāpaʻi pāloaa ?

putty pāhiki i lokoʻO ka pauka polimer hiki ke wehe hou ʻia RDP/VAEe hoʻohui i ka liʻiliʻi, ʻo ka hana pololei loa ʻo ka putty layer loose, surface flour, poor leveling, he paʻakikī ke hana i kahi kiʻiʻoniʻoni. Pili kēia pā i ka ʻili, ʻōhū, ʻili, haki a me nā mea ʻē aʻe. Ina ka haahaaputty pākoho ʻia, e hoʻopuka ka pā i nā kinoea ʻino, e like me ka formaldehyde a ʻike ʻia nā pōʻino kino kanaka ʻē aʻe.

No laila, ke kumu o ke kūlana kiʻekiʻeputty pāʻO ka hana ʻana ke koho i kahi hydroxypropyl methyl cellulose maikaʻiHPMCa hiki ke wehe hou iapolimer pauda RDPa me nā mea hoʻohui huahana ʻē aʻe e hana i nā huahana ʻōmaʻomaʻo.