ʻIke kumu o ka pauka polymer dispersible

1. manaʻo kumu

ʻO ka pauka polymer hiki ke hoʻokuʻu ʻiaʻO ia ka mea hoʻohui nui no ka pauka maloʻo i hoʻohui ʻia i hoʻohui ʻia e like me ka cement-based a i ʻole gypsum-based.

ʻO ka pauka latex redispersible he emulsion polymer i hoʻomaloʻo ʻia a hoʻohui ʻia mai ka 2um mua e hana i nā ʻāpana spherical o 80 ~ 120um. No ka mea, ua uhi ʻia nā ʻili o nā ʻāpana me ka pauka inorganic, paʻakikī paʻakikī, loaʻa iā mākou nā pauka polymer maloʻo. Maʻalahi loa lākou e ninini a ʻeke no ka mālama ʻana i nā hale kūʻai. Ke hoʻohui ʻia ka pauka me ka wai, ka sima a i ʻole ka gypsum-based mortar, hiki ke hoʻokaʻawale ʻia, a ʻo nā ʻāpana kumu (2um) i loko e hana hou i loko o kahi mokuʻāina e like me ka latex kumu, no laila ua kapa ʻia ka pauka latex redispersible.

Loaʻa iā ia ka redispersibility maikaʻi, hoʻopuehu hou i kahi emulsion ma ka hoʻopili ʻana me ka wai, a loaʻa iā ia nā waiwai kemika like me ka emulsion kumu. Ma ka hoʻohui ʻana i ka pauka polymer dispersible i ka lepo sima a i ʻole gypsum-based dry powder ready-mixed mortar, hiki ke hoʻomaikaʻi ʻia nā ʻano waiwai like ʻole, e like me:

E hoʻomaikaʻi i ka pili a me ka hui ʻana o ka mortar;

E ho'ēmi i ka wai o ka mea a me ka elastic modulus o ka mea;

ʻO ka ikaika flexural, ka hopena o ka hopena, ka pale abrasion a me ka lōʻihi o nā mea hoʻoikaika;

E hoʻomaikaʻi i ka hana hana o nā mea, etc.

2. Nā ʻano o nā pauka polymer dispersible

I kēia manawa, hiki ke hoʻokaʻawale ʻia nā noi nui i ka mākeke i ka latex disperse:

Vinyl acetate a me ka ethylene copolymer rubber pauka (Vac/E), ethylene a me vinyl chloride a me ka vinyl laurate ternary copolymer rubber pauka (E/Vc/VL), vinyl acetate a me ka ethylene a me ka momona momona kiʻekiʻe vinyl ester terpolymerization Rubber pauka (Vac/E/ VeoVa), vinyl acetate a me ka momona momona kiʻekiʻe vinyl ester copolymer rubber pauka (Vac/VeoVa), acrylate a me styrene copolymer rubber pauka (A/S), vinyl acetate a me ka acrylate a ʻoi aku ka momona momona Vinyl ester terpolymer rubber pauka (Vac/A/ VeoVa), vinyl acetate homopolymer rubber powder (PVac), styrene a me butadiene copolymer rubber powder (SBR), etc.

3. ʻO ka hui ʻana o ka pauka polymer dispersible

ʻO nā pauka polymer dispersible he mau pauka keʻokeʻo, akā he mau kala ʻē aʻe kekahi. Aia i loko o ia mau mea:

ʻO ka resin polymer: Aia ia ma ka ʻāpana kumu o nā ʻāpana pauka rubber, a ʻo ia hoʻi ka mea nui o ka pauka polymer redispersible.

Hoʻohui (i loko): me ka resin, hana ia i ka hana o ka hoʻololi ʻana i ka resin.

Nā mea hoʻohui (waho): Hoʻohui ʻia nā mea hou aku e hoʻonui i ka hana o ka pauka polymer dispersible.

ʻO ka colloid pale: kahi papa o nā mea hydrophilic i kāwili ʻia ma ka ʻili o nā ʻāpana pauka latex redispersible, ʻo ka colloid pale o ka pauka latex redispersible he polyvinyl alcohol.

Anti-caking agent: ka mea hoʻopiha mineral maikaʻi, hoʻohana nui ʻia e pale i ka pauka lāʻau mai ka caking i ka wā o ka mālama ʻana a me ka lawe ʻana a me ka hoʻomaʻamaʻa ʻana i ka kahe o ka pauka lāʻau (ka hoʻolei ʻana mai nā ʻeke pepa a i ʻole nā ​​pahu pahu).

4. ʻO ke kuleana o ka pauka polymer dispersible i ka mortar

Hoʻopuehu ʻia ka pauka latex redispersible i loko o kahi kiʻiʻoniʻoni a hana ma ke ʻano he mea hoʻoikaika e like me ka lua;

Hoʻopili ʻia ka colloid pale e ka ʻōnaehana mortar (ʻaʻole ia e luku ʻia e ka wai ma hope o ka hoʻokumu ʻia ʻana o ke kiʻiʻoniʻoni, a i ʻole "ka hoʻopuehu lua";

Hoʻolaha ʻia ka resin polymer kiʻiʻoniʻoni i loko o ka ʻōnaehana mortar ma ke ʻano he mea hoʻoikaika, ma laila e hoʻonui ai i ka cohesion o ka mortar;

5. ʻO ke kuleana o ka pauka polymer dispersible i ka mortar pulu:

Hoʻonui i ka hana kūkulu;

Hoʻonui i nā waiwai kahe;

E hoʻonui i ka thixotropy a me ka sag kū'ē;

hoʻomaikaʻi i ka pilina;