ʻO ka hiʻohiʻona hiʻohiʻona o ka paʻi ʻana i ke keʻokeʻo elastic keʻokeʻo ʻo ia ka hōʻike waho o kona ʻano a me ka maikaʻi, ʻo ia hoʻi ke kūlana hiʻohiʻona, ka maikaʻi a me ka wai o ka paʻi ʻana i ke kāpili keʻokeʻo elastic.ʻO ke ʻano o ka paʻi maikaʻi ʻana i ke kolu keʻokeʻo elastic e pono ke ʻano wai like, keʻokeʻo keʻokeʻo semi-paste, palupalu a kaulike, maikaʻi ka wai, a me ka ʻālohilohi.Eia nō naʻe, ʻoi aku ka maikaʻi ʻole o ka paʻi ʻana i ka elastic keʻokeʻo keʻokeʻo pinepine i hoʻopaʻa ʻia i ka solidification, ka wai maikaʻi ʻole, flocculation a me ka hoʻokaʻawale ʻana o ka wai, ka nui o ka viscosity, a me ke kino e like me ka paʻi ʻana i ka wā o ka mālama ʻana, e pili pono ana i kona ʻano, kala, uhi i ka mana, ka wai kūpaʻa, pae, Opacity, ʻōlinolino, hua kala a me nā waiwai ʻē aʻe.
Nui nā mea e pili ana i ka maikaʻi o ka paʻi ʻana i ke kolu keʻokeʻo elastic: nā mea maka e like me ka resin (adhesive) wetting and dispersing agent, thickener, filler a me kāna ʻano hana a me ke kaʻina hana.
Nā kumu e pili ana i ka maikaʻi o ke ʻano o ka paʻi ʻana i ka Elastic White Mucilage
1. ʻO ka momona ka mea hana kiʻiʻoniʻoni o ka paʻi ʻana i ke kāpili keʻokeʻo elastic.I ka wā o ka hopena polymerization kemika o ka resin, ka mahana, ka manawa, ka wikiwiki o ka hopena, ka mālama ʻana i ka wela, ka wikiwiki o ka hoʻoulu ʻana a me ka hoʻohui ʻana i nā mea hoʻohui e hoʻopau i ka hopena kemika a me ke koena. , ka hopena i ka delamination o ka paʻi ʻana i ke kolu keʻokeʻo elastic, ka ʻala ikaika, ka hoʻopili maikaʻi ʻole, ka pale ʻana i ka pūnaewele a me nā mea paʻa ʻole.No laila, pono e loaʻa i ka resin ke kūpaʻa kemika maikaʻi, ke kūpaʻa o ka mālama ʻana, ka elasticity maikaʻi, ka adhesion ikaika, ka palupalu a me nā ʻano lāʻau ʻole.
2. E noʻonoʻo ana mai ka wikiwiki o ka sedimentation (Kāwai Stokes)
V=218r2(P-P1)/η
Ma ke kumu: V-holo wikiwiki, ㎝/s;r-pākuʻi radius, ㎝;
P-pigment particle density, g/cm3;P1-wai nui, g/cm3
η-wai nui ʻāpana, 0.1pa.s
ʻO ka wikiwiki o ka sedimentation o ka mea hoʻopihapiha he pilina lehulehu me ka maikaʻi wili, ʻo ia hoʻi, ʻoi aku ka maikaʻi o ka wili ʻana, e hoʻonui ʻia ka wikiwiki sedimentation o ka mea hoʻopiha.ʻO ka paʻi ʻana i ke kāpili keʻokeʻo elastic e hoʻokaʻawale i ka wai a kahe i nā papa i ka manawa pōkole.No laila ʻo ka fineness maʻamau i loko o 15-20μm.Eia naʻe, hoʻopaneʻe wale nā ʻāpana puaʻa ʻoi aku ka maikaʻi a ʻaʻole pale i ka hoʻopaʻa ʻana.ʻO ka paʻi ʻana i ke kāpili keʻokeʻo elastic he wai ʻeleʻele me ka wai non-Newtonian, a pono e ana ʻia kona viscosity me kahi viscometer rotational.
3. ʻO ka mana o ka paʻi ʻana i nā mea hoʻohui keʻokeʻo elastic
Hiki ke hoʻopuehu like i nā mea hoʻopiha like ʻole i ka pulu a me ka dispersing agent i ka paʻi ʻana i nā mucilage keʻokeʻo elastic.Hoʻokomo ʻia ka ʻupena wehe i loko o kāna ʻano hana e hoʻokuʻu i nā ʻāpana hoʻopiha me ka ʻole o ka sedimentation, e hōʻemi pono i ka viscosity o ka slurry, a pale i ka paʻi ʻana i ka mucilage keʻokeʻo elastic mai ka flocculating.a me ka waiho ʻana o ka ua;ʻO ka hoʻohui ʻana o ka pae hoʻohaʻahaʻa e hōʻemi i ke kaohi ʻana ma waena o nā kaulahao macromolecular, hoʻemi i ka friction o nā mea a hoʻemi i ka viscosity.ʻOi aku ka koʻikoʻi o ka mānoanoa i ka hoʻoponopono ʻana i ke ʻano hiʻohiʻona o ka paʻi ʻana i ke kolu keʻokeʻo elastic.
4. ʻO ka mana o ka paʻi ʻana i ke kaʻina hana elastic white glue
ʻO ka wikiwiki nui o ka mea hoʻonāukiuki e hoʻoneʻe i ka resin e ka shear kiʻekiʻe, a ʻo ka hoʻohui hewa ʻole o nā mea hoʻohui e like me nā dispersants, nā mea kahe, a me nā mānoanoa e alakaʻi pū ai i ka demulsification o ka paʻi elastic keʻokeʻo keʻokeʻo a me ka hoʻokumu ʻana o nā ʻāpana gel.E mālama i ka manawa, ka mahana a me ka maikaʻi o ka huahana o ke kaʻina hana.
ʻO ke ʻano hoʻomalu maikaʻi o ke ʻano o ka paʻi ʻana i ka Elastic White Glue
1. E koho i ka resin i kūpono i nā koi hoʻolālā formula
ʻO Resin ka mea nui loa o ka paʻi ʻana i ke ʻano hoʻopili keʻokeʻo elastic.Loaʻa i nā resins ʻokoʻa ka hāʻawi ʻana i ka nui o ka nui, ke kūpaʻa ion kemika, ke kūpaʻa mechanical, ka wai-i-ʻaila, ka aila-i-wai a me ka hydrophilicity, he hopena nui i ka helehelena.No laila, i ke koho ʻana i kahi resin, pono e noʻonoʻo pono i nā ʻano o ka resin ponoʻī, ʻoi aku ka hoʻohālikelike ʻana o ka resin, i mea e hoʻonohonoho ai i ke koho ʻana o nā mea hoʻopihapiha a me nā mea hoʻohui i ke kaʻina hana.
2. Hoʻohui maikaʻi me ka dispersant a me ka mea hoʻohālikelike
ʻO nā mea hoʻokalakupua a me nā mea hoʻopuehu i hana ʻia e nā mea hana like ʻole he mau waiwai HLB like ʻole.ʻO ka mea maʻamau, ʻo nā mea hoʻopuehu a me nā mea hoʻohālikelike (wai-wai) me nā waiwai HLB nui aʻe e hoʻemi i ka viscosity o ka ʻōnaehana;me ka piʻi ʻana o nā waiwai HLB, ʻo nā ʻano like ʻole o ka dispersing a me ka hoʻohaʻahaʻa ʻana e hoʻemi i ka viscosity o ka ʻōnaehana a hoʻopilikia i ka resin A ʻoi aku ka nui.Na ka hydrophilic dispersing and leveling agent e hoʻomaikaʻi i ka mālama ʻana i ka paʻa o ka paʻi ʻana i ke kolu keʻokeʻo elastic, a ʻo ka hydrophobic dispersing a me leveling agent e hoʻomaikaʻi i ke kūpaʻa scrub o ka paʻi elastic keʻokeʻo keʻokeʻo ma hope o ka hoʻokumu ʻana i ke kiʻiʻoniʻoni.No laila, ʻo ka hui pū ʻana o ka hydrophilic a me ka hydrophobic dispersing a me nā mea hoʻohālikelike e hiki ke hoʻomaikaʻi maikaʻi i ka mālama ʻana i ka paʻi ʻana i ke kala keʻokeʻo elastic.Inā hoʻohui ʻia ka mea hoʻopuehu a me ka pae hoʻohālikelike, e hoʻomaikaʻi ʻia kona hydrophilicity a me ka wai, akā e hoʻemi ʻia ka wikiwiki o ka holoi ʻana a e hōʻemi ʻia kona kūpaʻa wai.Inā liʻiliʻi ka dispersing a me ka hoʻohui ʻia ʻana o ka mea hoʻohui, e hoʻopilikia pololei ia i ka maikaʻi o kona helehelena, no laila pono e hoʻomalu ʻia ma waena o 3% -5%.
3. Ke koho kūpono o nā mānoanoa e hoʻomaikaʻi i ka hana o ka paʻi ʻana i ke kāpili keʻokeʻo elastic
I kēia manawa, ʻo nā mea mānoanoa i hoʻohana mau ʻia i ka paʻi ʻana i ke kolu keʻokeʻo elastic me: polyacrylic acid, cellulose ether, alkali-soluble acrylic, a me non-ionic associative polyurethane.
Cellulosic thickeners (ʻoi loa me ka hydroxypropyl methyl cellulose, hydroxyethyl cellulose, a me ka hydroxypropyl cellulose) i kiʻekiʻe thickening pono a me ka maikai paʻa, akā, ilihune leveling a maʻalahi ke kumu punaewele ma ka pale paʻi , a loaʻa kekahi hopena i ka gloss o ka slurry.ʻOi aku ke kumukūʻai o nā mea mānoanoa polyurethane a ʻaʻole i hoʻohana ʻia i ka paʻi ʻana i ke kāpili keʻokeʻo elastic.ʻO ka polyacrylic acid thickeners he mau waiwai pae maikaʻi, ʻaʻole maʻalahi ka hana ʻana i nā hōʻailona pūnaewele, ʻaʻole e hoʻopilikia i ka ʻōlinolino o ka slurry, maikaʻi ke kūpaʻa wai a me ke kūpaʻa biological, a loaʻa ka pilina maikaʻi, no laila ua hoʻokumu ʻia nā loulou molekala ma waena o nā ʻāpana, e hopena i ka Resin. -Filler-resin e hoʻokumu i kahi ʻōnaehana pūnaewele, e hāʻawi ana i ka wikiwiki a me ke kiʻekiʻe o ka shear speed, e hana ana i ka paʻi elastic keʻokeʻo keʻokeʻo i ʻoi aku ka maikaʻi o ka rheology, a me ke ʻano o ka waiū keʻokeʻo semi-paste.
4. E hoʻohana i ke kaʻina hana kūpono
Pono e hoʻoheheʻe ʻia ka mānoanoa me ka wai ma mua o ka hoʻohui ʻana.Pono e hoʻohui mua ʻia ka resin, a pono e mālama ʻia ka mea hoʻouluulu ma ka wikiwiki haʻahaʻa e pale aku ai i ka demulsification resin ma muli o ka ʻohi nui ʻana.I ka wā o ke kaʻina hana, pono e ʻike ʻia ka viscosity o ka slurry i kēlā me kēia manawa, a ʻo ka wikiwiki o ka hoʻoulu ʻana a me ka mahana o ka slurry i ka wā o ka hana ʻana.A ma mua o ka hoʻoponopono ʻana i ka slurry, e hoʻohui i ka nui o ka surfactant e pale i nā ʻāpana resin mai ka demulsification.
Ka manawa hoʻouna: Mar-04-2023