ʻO ka ʻokoʻa ma waena o ka pauka polymer dispersible a me ka pauka resin

I nā makahiki i hala iho nei, ua ʻike ʻia ka nui o ka pauka resin rubber, ka pauka rubber wai-pale kiʻekiʻe a me nā pauka rubber haʻahaʻa loa ma ka mākeke e pani i ka emulsion VAE kuʻuna (vinyl acetate-ethylene copolymer), kahi i hoʻomaloʻo ʻia a hana hou ʻia. ʻO ka pauka latex dispersible, a laila he aha ka ʻokoʻa ma waena o ka pauka resin rubber a me ka pauka latex redispersible, hiki i ka pauka resin rubber ke pani i ka pauka latex redispersible? E alakaʻi ʻo Yongqiang Mortar Technology Center iā ʻoe e kālailai pōkole i ka ʻokoʻa ma waena o nā mea ʻelua no kāu kuhikuhi:

1. Pauka latex hiki ke hoʻoheheʻe hou ʻia

I kēia manawa, ʻo nā pauka polymer dispersible i hoʻohana nui ʻia ma ka honua: vinyl acetate a me ka pauka ethylene copolymer rubber (VAC/E), ethylene a me vinyl chloride a me vinyl laurate terpolymer rubber powder (E/VC/VL), acetic acid Vinyl ester a me ethylene a me ka pauka rubber vinyl ester terpolymer acid kiʻekiʻe (VAC/E/VeoVa), ʻo kēia mau pauka polymer dispersible ʻekolu e noho aliʻi ana ma ka mākeke holoʻokoʻa, ʻoiai ka vinyl acetate a me ka pauka rubber ethylene copolymer VAC/E/VeoVa E, he kūlana alakaʻi ma ke kahua honua a hōʻike i nā ʻano loea o nā pauka polymer dispersible. ʻO ia nō ka hopena loea maikaʻi loa ma ke ʻano o ka ʻike loea me nā polymers i hoʻopili ʻia i ka hoʻololi ʻana i ka mortar:

1. ʻO ia kekahi o nā polymers i hoʻohana nui ʻia ma ka honua;
2. Loaʻa ka ʻike noi nui loa ma ke kahua kūkulu;
3. Hiki iā ia ke hoʻokō i nā waiwai rheological e pono ai ka mortar (ʻo ia hoʻi ka hana e pono ai);
4. ʻO ka resin polymer me nā monomers ʻē aʻe he mau ʻano o nā hui haʻahaʻa haʻahaʻa haʻahaʻa (VOC) a me nā kinoea hoʻonāukiuki haʻahaʻa;
5. Loaʻa iā ia nā ʻano o ke kūpaʻa UV maikaʻi loa, ke kūpaʻa wela maikaʻi a me ke kūpaʻa lōʻihi;
6. Loaʻa iā ia ke kūpaʻa saponification kiʻekiʻe;
7. Loaʻa iā ia ka laulā ākea o ka mahana hoʻololi aniani (Tg);
8. Loaʻa iā ia ka hoʻopili piha maikaʻi, ka maʻalahi a me nā waiwai mechanical;
9. Loaʻa ka ʻike lōʻihi loa i ka hana kemika i ka hana ʻana i nā huahana maikaʻi paʻa a me ka ʻike i ka mālama ʻana i ka paʻa o ka mālama ʻana;
10. He maʻalahi ke hui pū me ke colloid pale (polyvinyl alcohol) me ka hana kiʻekiʻe.

2. Pauka resin

ʻO ka hapa nui o nā pauka laholio "resin" ma ka mākeke aia ka mea kemika DBP. Hiki iā ʻoe ke nānā i ka pōʻino o kēia mea kemika, ka mea e hoʻopilikia ai i ka hana moekolohe kāne. He nui ka nui o ia mau pauka laholio i hōʻiliʻili ʻia i loko o nā hale kūʻai a me nā keʻena hoʻokolohua, a he leʻaleʻa lākou i kekahi ʻano. ʻO ka mākeke ʻo Beijing, ka mea i kaulana no kāna hana ʻana i ka "pauka laholio", ua puka mai i kēia manawa kahi ʻano "pauka laholio" i hoʻomoʻa ʻia i loko o nā mea hoʻoheheʻe me nā inoa like ʻole: pauka hoʻopili wai ikaika kiʻekiʻe, pauka hoʻopili resin, a pēlā aku. Nā hiʻohiʻona maʻamau:
1. ʻAʻole maikaʻi ka hoʻopuehu ʻana, manaʻo kekahi ua pulu, manaʻo kekahi ua flocculent (pono ia he mea porous e like me ka sepiolite), a he keʻokeʻo kekahi a maloʻo iki akā pilau nō naʻe;
2. ʻAla ʻawaʻawa loa;
3. Ua hoʻohui ʻia kekahi mau kala, a ʻo nā kala o kēia manawa he keʻokeʻo, melemele, hina, ʻeleʻele, ʻulaʻula, a pēlā aku;
4. He liʻiliʻi loa ka nui o ka hoʻohui ʻana, a ʻo ka nui o ka hoʻohui no hoʻokahi tona he 5 ~ 12 kg;
5. He mea kupaianaha ka ikaika mua. ʻAʻohe ikaika o ka sima no ʻekolu lā, a hiki iā ia ke hōʻino i ka papa insulation a hoʻopili iā ia.
6. Ua ʻōlelo ʻia hiki ke hoʻohana ʻia ka papa XPS me ka ʻole o ka mea hoʻopili.

Ma o nā laʻana i loaʻa a hiki i kēia manawa, hiki ke hoʻoholo ʻia he resin ia e hoʻokumu ʻia ana i ka solvent i hoʻopili ʻia e nā mea porous māmā, akā makemake ka mea hoʻolako e pale aku i ka huaʻōlelo "solvent" me ka manaʻo, no laila ua kapa ʻia ʻo ia he "rubber powder"

hemahema:

1. He pilikia nui ka pale ʻana o ka mea hoʻoheheʻe i ka wā. I ka lā, e hoʻoheheʻe koke ia. Inā ʻaʻole i ka lā, e pala koke ka pilina pili ma muli o ke kūkulu ʻana o ka lua;
2. Ke kūpaʻa ʻana i ka wā ʻelemakule, ʻaʻole kūpaʻa ka mea hoʻoheheʻe i ka mahana, ʻike nā mea a pau i kēia;
3. ʻOiai ʻo ke ʻano hoʻopili ʻana e hoʻoheheʻe i ka pilina o ka papa insulation, ma ke ʻano ʻē, hoʻopau pū ia i ka pilina hoʻopili. Inā he pilikia ma ke kahua ma hope, e make ka hopena;
4. ʻAʻohe hiʻohiʻona no ka hoʻohana ʻana ma waho. Me ka ʻike makua o ka ʻoihana kemika kumu ma waho, ʻaʻole hiki ke ʻike ʻole i kēia mea.

hōʻuluʻulu manaʻo:

Pauka polymer hoʻoheheʻe ʻia:

1. ʻO ka huahana pauka latex redispersible he pauka redispersible wai-soluble, ʻo ia ka copolymer o ka ethylene a me ka vinyl acetate, a hoʻohana i ka polyvinyl alcohol ma ke ʻano he colloid pale.
2. Loaʻa i ka pauka latex redispersible VAE nā waiwai hana kiʻiʻoniʻoni, 50% ka hopena wai e hana i kahi emulsion, a hana ia i kahi kiʻiʻoniʻoni e like me ka plastic ma hope o ke kau ʻia ʻana ma ke aniani no 24 mau hola.
3. Loaʻa i ke kiʻiʻoniʻoni i hana ʻia kekahi ʻano maʻalahi a me ke kūpaʻa wai. Hiki ke hōʻea i nā kūlana aupuni.
4. Loaʻa i ka pauka latex redispersible ka hana kiʻekiʻe: loaʻa iā ia ka hiki ke hoʻopili kiʻekiʻe, ka hana kū hoʻokahi a me ka hana wai ʻole maikaʻi loa, ka ikaika hoʻopili maikaʻi, hāʻawi i ka mortar me ke kūpaʻa alkali maikaʻi loa, a hiki ke hoʻomaikaʻi i ka hoʻopili a me ka ikaika flexural o ka mortar. , plasticity, pale ʻaʻahu a me ke kūkulu ʻana, ʻoi aku ka ikaika o ka maʻalahi i ka mortar anti-cracking.

Pauka resin:

1. ʻO ka pauka laholio Resin kahi ʻano hoʻololi hou no ka laholio, resin, polymer macromolecular, pauka laholio lepo a me nā mea ʻē aʻe.
2. He kūpaʻa maʻamau ka pauka resin rubber, kū'ē i ka abrasion, hoʻopuehu maikaʻi ʻole, manaʻo kekahi he flocculent (pono ia he mea porous e like me ka sepiolite), a he pauka keʻokeʻo (akā he ʻala ʻawaʻawa e like me ke kerosene).
3. He mea ʻino kekahi mau pauka resin i ka papa, a ʻaʻole kūpono ka pale wai.
4. ʻOi aku ka haʻahaʻa o ke kūpaʻa ʻana o ka pauka resin rubber i ka wā a me ka wai ma mua o ka pauka latex. He pilikia nui ke kūpaʻa ʻana i ka wā. I ka lā, e hoʻoheheʻe koke ia. ʻOiai inā ʻaʻole i ka lā, ʻo ka pilina pili, ʻoiai he kūkulu lua ia, e palaho wikiwiki hoʻi.
5. ʻAʻohe hiki ke hoʻoheheʻe ʻia ka pauka laholio resin, ʻaʻole hoʻi e loli. Wahi a ke kūlana nānā o ka mortar insulation waho no nā paia waho, ʻo ka helu luku wale nō o ka papa polystyrene e kū nei i ke kūlana. ʻAʻole i kū nā ʻōkuhi ʻē aʻe i ke kūlana.
6. Hiki ke hoʻohana ʻia ka pauka resin no ka hoʻopili ʻana i nā papa polystyrene, ʻaʻole no ka hoʻopili ʻana i nā momi vitrified a me nā papa pale ahi.