He aha nā ʻāpana o ka pauka emulsion redispersible
Hoʻokumu pinepine ʻia ka Redispersible Emulsion Powder (RDP) i kekahi mau mea nui, e lawelawe ana kēlā me kēia i kahi kumu kikoʻī i ka hoʻokumu ʻana. ʻOiai hiki ke ʻokoʻa ka haku mele ma muli o ka mea hana a me ka noi i manaʻo ʻia, ʻo nā mea nui o RDP maʻamau e komo pū:
- Polymer Base: ʻO ka mea nui o RDP he polymer synthetic, ka mea i hana i ka iwi kuamoʻo o ka pauka. ʻO ka polymer maʻamau i hoʻohana ʻia ma RDP he vinyl acetate-ethylene (VAE) copolymer. Hiki ke hoʻohana ʻia nā polymers ʻē aʻe e like me vinyl acetate-vinyl versatate (VA/VeoVa), copolymers ethylene-vinyl chloride (EVC), a me nā polymers acrylic ma muli o nā waiwai i makemake ʻia.
- Nā Colloid Paleʻa: Loaʻa paha i ka RDP nā colloids pale e like me cellulose ethers (e laʻa, hydroxypropyl methylcellulose), polyvinyl alcohol (PVA), a i ʻole starch. Kōkua kēia mau colloid i ka hoʻopaʻa ʻana i ka emulsion i ka wā o ka hana ʻana a me ka mālama ʻana, e pale ana i ka coagulation a i ʻole sedimentation o nā ʻāpana polymer.
- Plasticizers: Hoʻohui ʻia nā Plasticizers i RDP formulations e hoʻomaikaʻi i ka maʻalahi, ka hana, a me ka pili. ʻO nā mea plasticizer maʻamau i hoʻohana ʻia ma RDP me nā glycol ethers, polyethylene glycols (PEGs), a me ka glycerol. Kōkua kēia mau mea hoʻohui i ka hoʻokō ʻana i nā hiʻohiʻona o ka RDP i nā noi like ʻole.
- Nā Agena Hoʻolaha: Hoʻohana ʻia nā mea hoʻolaha e hōʻoia i ka hoʻopuehu like ʻana a me ka redispersibility o nā ʻāpana RDP i ka wai. Hoʻonui kēia mau mea hana i ka pulupulu a me ka hoʻopuehu ʻana o ka pauka i loko o nā ʻōnaehana wai, e ʻae ai i ka hoʻohui maʻalahi i loko o nā ʻano hana a hoʻomaikaʻi i ka paʻa o nā dispersions hopena.
- Nā mea hoʻopiha a me nā mea hoʻohui: Loaʻa i nā formulations RDP nā mea hoʻopihapiha a me nā mea hoʻohui e like me ka calcium carbonate, silica, kaolin, a i ʻole titanium dioxide. Kōkua kēia mau mea hoʻohui i ka hoʻomaikaʻi ʻana i ka hana, ke ʻano, a me ke ʻano o RDP i nā noi kikoʻī. Hiki iā lākou ke lawelawe ma ke ʻano he extenders a i ʻole nā mea hoʻohui hana e hoʻonui ai i nā waiwai e like me ka opacity, durability, a i ʻole rheology.
- Nā Mea Hana Kūleʻa: Hiki ke hoʻohui ʻia nā mea hana o ka Surface a i ʻole nā surfactant i nā hoʻopuka RDP e hoʻomaikaʻi ai i ka pulupulu, hoʻopuehu, a me ka hoʻohālikelike ʻana me nā mea ʻē aʻe i loko o nā ʻano. Kōkua kēia mau mea hana i ka hoʻohaʻahaʻa ʻana i ka ʻili o ka ʻili a me ka hoʻoikaika ʻana i ka pilina ma waena o nā ʻāpana RDP a me nā mea a puni, e hōʻoia i ka hoʻopuehu like ʻana a me ka hana maikaʻi i nā noi.
- Nā Agena Anti-foaming: Hiki ke hoʻokomo ʻia nā mea kūʻē anti-foaming i loko o nā hana RDP e pale ai i ka hoʻokumu ʻana i ka ʻūhā i ka wā o ka hana ʻana a i ʻole ke noi ʻana. Kōkua kēia mau mea hana i ka hōʻemi ʻana i ka hoʻopaʻa ʻana o ka ea a hoʻomaikaʻi i ke kūpaʻa a me ka paʻa ʻana o ka hoʻopuehu ʻana o RDP, ʻoi aku ka nui o nā kaʻina hui hui kiʻekiʻe.
- Nā mea hoʻohui ʻē aʻe: Ma muli o nā koi kikoʻī a me nā pae hoʻokō o ka hoʻokumu ʻana o RDP, hiki ke hoʻokomo ʻia nā mea hoʻohui ʻē aʻe e like me nā cross-linking agents, stabilizers, antioxidants, a me nā kala. Kōkua kēia mau mea hoʻohui i ka hoʻopili ʻana i nā waiwai a me ka hana o RDP no nā noi kikoʻī a me nā pono mea hoʻohana hope.
ʻO nā ʻāpana o ka pauka emulsion redispersible e hana synergistically e hāʻawi i nā waiwai i makemake ʻia e like me ka adhesion, ka maʻalahi, ka pale ʻana i ka wai, a me ka hana i nā mea hana a me nā noi. He mea koʻikoʻi ke koho ʻana a me ka hoʻokumu ʻana i kēia mau ʻāpana no ka hoʻokō ʻana i ka hana maikaʻi loa a me ka maikaʻi i nā huahana RDP.
Ka manawa hoʻouna: Feb-16-2024