ʻO ka defoamer hanauna ʻekolu he defoamer silicone i hoʻokumu ʻia ma ka polydimethylsiloxane (PDMS, dimethyl silicone oil). I kēia manawa, ua kau nui ʻia ka noiʻi a me ka hoʻohana ʻana o kēia hanauna o nā defoamers ma Kina. Hana ʻia ka PDMS me ke kaulahao oxygen silicon a me nā hui organik ʻē aʻe, a ʻaʻole hiki ke hoʻonohonoho pono ʻia ma luna o ka ʻili wai huʻa, i pahū ai nā pehu. He waiwai defoaming maikaʻi ko PDMS viscosity haʻahaʻa a he waiwai defoaming maikaʻi ko PDMS viscosity kiʻekiʻe.
Nā pōmaikaʻi o ka silicone defoamer
He maikaʻi kona inertia kemika a he paʻakikī ke hana me nā mea ʻē aʻe. Hiki ke hoʻohana ʻia i loko o nā hopena waikawa, alkali a me ka paʻakai.
ʻO ka inertia physiological maikaʻi, hiki ke hoʻohana ʻia i nā ʻoihana meaʻai a me nā lāʻau lapaʻau, a ʻaʻohe haumia i ke kaiapuni.
He kūpaʻa maikaʻi kona a me ka haʻalulu haʻahaʻa, a hiki ke hoʻohana ʻia i kahi ākea o ka mahana.
Haʻahaʻa ka mānoanoa (viscosity) a pālahalaha koke ma ka pilina kinoea-wai.
ʻO ka ʻilikai haʻahaʻa e like me 1.5-20 Mn / M (76 Mn / m no ka wai).
ʻAʻole maʻalahi ka hoʻoheheʻe ʻia e ka surfactant i loko o ka ʻōnaehana foaming.
Haʻahaʻa ka nui, haʻahaʻa ka mānoanoa a me ka haʻahaʻa o ka lapalapa ʻana.
Nā hemahema o ka silicone defoamer
1. He paʻakikī ke hoʻopuehu i loko o ka ʻōnaehana wai.
2. No ka mea he mea hoʻoheheʻe ʻia i ka ʻaila, ua hoʻemi ʻia ka hopena defoaming i loko o ka ʻōnaehana ʻaila.
3. Ke kūpaʻa wela kiʻekiʻe maikaʻi ʻole.
4. Ke kūpaʻa maikaʻi ʻole i ka alkalinity ikaika.
Kumukūʻai kiʻekiʻe:ʻO PDMS kahi emulsion wai i loko o ka ʻaila (O/W) i hana ʻia me ka silicone grease, emulsifier, thickener, a me nā mea ʻē aʻe, kahi i hoʻoheheʻe ʻia e ka wai. Hoʻemi koke ka ʻili o ka ʻili a he hopena anti-foaming ikaika a me nā hopena anti-foaming. Ua māhelehele ʻia i ʻekolu mau ʻano: ʻaila silicone, ʻaila silicone + polyether i hoʻololi ʻia a me ka ʻaila silicone i hoʻololi ʻia o ka polyether.
Ua hōʻike ʻia e:ʻO ka ʻilikai haʻahaʻa, ka hana ʻilikai kiʻekiʻe a me ka mana defoaming ikaika.
Ka nui o ka lāʻau:Hiki iā ia ke kāohi a uhaʻi i nā pehu no ka hapa nui o nā pāpaho pehu.Loaʻa iā ia ke kūpaʻa wela maikaʻi a hiki ke hoʻohana ʻia i kahi ākea o ka mahana.Hoʻokaʻawale ʻia me ka polyether a he hopena synergistic.Hoʻohana nui ʻia no ka defoaming i loko o ka detergent, papermaking, pulp, sugar making, electroplating, chemical fertilizer, additives, wastewater treatment and other procedures production. I loko o ka ʻoihana petroleum, hoʻohana nui ʻia no ka desulfurization o ke kinoea kūlohelohe e hoʻolalelale i ka hoʻokaʻawale ʻana o ka ʻaila-kinoea; Hoʻohana pū ʻia e kāohi a kāohi paha i nā pehu i loko o nā mea hana e like me ka hoʻomaloʻo ʻana o ka ethylene glycol, ka unuhi ʻana o ka hydrocarbon aromatic, ka hana ʻana o ka asphalt a me ka lubricating oil dewaxing. I loko o ka ʻoihana textile, hoʻohana ʻia no ka defoaming i ka dyeing, scouring, sizing and other procedures; Hoʻohana ʻia i loko o ke kaʻina hana o ka emulsion chemical a me ka defoaming i ka ʻoihana; Hoʻohana ʻia no ka defoaming i nā ʻano hana like ʻole, fermentation a me distillation i ka ʻoihana meaʻai.
Ka manawa hoʻouna: Mei-05-2022