1 Hoolauna
Mai ka hiki ʻana mai o nā mea hoʻoheheʻe reactive, ʻo ka sodium alginate (SA) ka mea paʻi nui no ka paʻi ʻana i ka wai hoʻonaninani ma nā lole pulupulu.
Ke hoʻohana nei i nā ʻano ʻekolu ocellulose ethersUa hoʻomākaukau ʻia ʻo CMC, HEC a me HECMC ma ka Mokuna 3 ma ke ʻano he paʻi kumu, ua hoʻohana ʻia lākou i ka paʻi ʻana i ka wai hoʻonaninani.
pua.Ua ho'āʻo a hoʻohālikelike ʻia nā waiwai kumu a me ka paʻi ʻana o nā pāpaʻi ʻekolu me SA, a ua hoʻāʻo ʻia nā fibers ʻekolu.
ʻO nā waiwai paʻi o nā huaora eter.
2 Mahele hoʻokolohua
Nā mea ho'āʻo a me nā lāʻau lapaʻau
ʻO nā mea maka a me nā lāʻau lapaʻau i hoʻohana ʻia i ka hoʻāʻo.Ma waena o lākou, ua hoʻomaʻemaʻe a hoʻomaʻemaʻe nā lole paʻi reactive, etc.
He moʻo o ka ulana pulupulu maʻemaʻe maʻemaʻe i hoʻomaʻamaʻa mua ʻia, ka nui 60/10cm×50/10cm, ulana ulana 21tex×21tex.
Hoʻomākaukau i ka paʻi paʻi a me ka paʻi kala
Ka hoʻomākaukau ʻana i ka paʻi paʻi
No nā pāpaʻi kumu ʻehā o SA, CMC, HEC a me HECMC, e like me ka ratio o nā ʻike paʻa like ʻole, ma lalo o nā kūlana hoʻoulu.
A laila, e hoʻohui mālie i ka paʻi i loko o ka wai, e hoʻomau i ka hoʻoulu ʻana no kekahi manawa, a hiki i ka like ʻana o ka paʻi kumu mua a ʻike maopopo, hoʻōki i ka hoʻoulu ʻana, a kau ma luna o ke kapuahi.
I loko o ke aniani, e kū i ka pō.
Ka hoʻomākaukau ʻana i ka paʻi paʻi
E hoʻoheheʻe mua i ka urea a me ka paʻakai anti-dyeing S me ka liʻiliʻi o ka wai, a laila e hoʻohui i nā mea pena i hoʻoheheʻe ʻia i ka wai, wela a hoʻoulu i loko o kahi ʻauʻau wai mehana.
Ma hope o ka hoʻoulu ʻana no kekahi manawa, e hoʻohui i ka waiʻona kānana i kānana i ka paʻi kumu a hoʻoulu like.Hoʻohui i ka dissolve a hoʻomaka ʻoe e paʻi
ʻO ka sodium bicarbonate maikaʻi.ʻO ke ʻano o ka paʻi kala ʻo: 3% ka wai hoʻohālikelike, ka paʻi kumu 80% (maʻiʻo paʻa 3%), ka sodium bicarbonate 3%,
ʻO ka paʻakai anti-contamination S he 2%, he 5% ka urea, a hoʻohui ʻia ka wai i 100%.
kaʻina hana paʻi
ʻO ke kaʻina hana paʻi ʻana o ka lole pulupulu: hoʻomākaukau i ka paʻi paʻi → paʻi pahu magnetic (ma ka lumi wela a me ke kaomi, paʻi 3 mau manawa) → hoʻomaloʻo (105 ℃, 10min) → ka mahu (105 ± 2 ℃, 10min) → holoi wai anuanu → wela Holoi me ka wai (80 ℃) → ka paila kopa (kopa kopa 3g/L,
100℃, 10min) → holoi wai wela (80℃) → holoi wai anuanu → maloʻo (60℃).
Ho'āʻo hana kumu o ka paʻi kumu
ʻO ka hoʻāʻo pākēkē
ʻEhā mau pāpaʻi mua o SA, CMC, HEC a me HECMC me nā mea paʻa like ʻole i hoʻomākaukau ʻia, a me Brookfield DV-Ⅱ
Ua hoʻāʻo ʻia ka viscosity o kēlā me kēia pāpaʻi me nā mea paʻa like ʻole e kahi viscometer, a ʻo ka ʻeke hoʻololi o ka viscosity me ka hoʻopaʻa ʻana ʻo ia ka wikiwiki o ka hoʻokumu ʻana o ka paʻi.
kāʻei.
Rheology and Printing Viscosity Index
Rheology: Ua ho'ohana 'ia ka rheometer rotational MCR301 no ke ana 'ana i ka viscosity (η) o ka pa'i kumu ma nā pālākiō ako like 'ole.
ʻO ka pihi hoʻololi o ka shear rate ka rheological curve.
Paʻi viscosity index: ʻO ka paʻi viscosity index i hōʻike ʻia e PVI, PVI = η60/η6, kahi o η60 a me η6 i kēlā me kēia.
ʻO ka viscosity o ka pāpaʻi kumu i ana ʻia e ka Brookfield DV-II viscometer ma ka wikiwiki rotor like o 60r/min a me 6r/min.
hoʻāʻo paʻa wai
E kaupaona i 25g o ka paʻi kumu i loko o ka beaker 80mL, a hoʻohui mālie i 25mL o ka wai i hoʻoheheʻe ʻia me ka hoʻoulu ʻana e hana i ka hui.
Ua hui like.E lawe i pepa kānana quantitative me ka lōʻihi × laula o 10cm × 1cm, a e kaha i kekahi kihi o ka pepa kānana me ka laina unahi, a laila e hoʻokomo i ka hopena i kaha ʻia i loko o ka paʻi, i kū like ka laina unahi me ka ʻili paʻi, a hoʻomaka ka manawa ma hope o ka hoʻokomo ʻana i ka pepa kānana, a hoʻopaʻa ʻia ma ka pepa kānana ma hope o 30 mau minuke.
ʻO ke kiʻekiʻe e piʻi ai ka wai.
4 Ke ho'āʻo hoʻohālikelike kemika
No ka paʻi ʻana i ka wai hoʻoluʻu, e hoʻāʻo i ka hoʻohālikelike ʻana o ka paʻi kumu a me nā mea pena ʻē aʻe i hoʻohui ʻia i ka paʻi paʻi,
ʻO ia hoʻi, ka hoʻohālikelike ʻana ma waena o ka pāpaʻi kumu a me nā ʻāpana ʻekolu (urea, sodium bicarbonate a me ka paʻakai anti-staining S), ʻo nā ʻanuʻu hoʻāʻo kikoʻī penei:
(1) No ka hoʻāʻo ʻana i ka viscosity kuhikuhi o ka paʻi kumu, e hoʻohui i 25mL o ka wai i hoʻoheheʻe ʻia i 50g o ka paʻi paʻi kumu, e hoʻoulu like, a laila e ana i ka viscosity.
Hoʻohana ʻia ka waiwai viscosity e like me ka viscosity kuhikuhi.
(2) No ka hoʻāʻo ʻana i ka viscosity o ka paʻi kumu ma hope o ka hoʻohui ʻana i nā mea like ʻole (urea, sodium bicarbonate a me ka paʻakai anti-staining S), kau i ka 15% i hoʻomākaukau ʻia.
ʻO ka wai Urea (haʻina nui), 3% ka paʻakai pale pale S solution (haʻina nui) a me 6% solution sodium bicarbonate (haʻina nui)
Hoʻohui ʻia ʻo 25mL i 50g o ka paʻi kumu, hoʻoulu ʻia a waiho ʻia no kekahi manawa, a laila ana i ka viscosity o ka paʻi kumu.ʻO ka hope, e ana ʻia ka viscosity
Hoʻohālikelike ʻia nā waiwai viscosity me ka viscosity kuhikuhi pili, a ua helu ʻia ka pākēneka o ka hoʻololi viscosity o ka paʻi kumu ma mua a ma hope o ka hoʻohui ʻana i kēlā me kēia dye a me nā mea kemika.
Ho'āʻo Paʻa Paʻa
E mālama i ka paila kumu ma ka lumi wela (25°C) ma lalo o ke kaomi maʻamau no nā lā ʻeono, e ana i ka viscosity o ka paʻi kumu i kēlā me kēia lā ma lalo o nā kūlana like, a e helu i ka viscosity o ka paʻi kumu ma hope o 6 mau lā e hoʻohālikelike ʻia me ka viscosity i ana ʻia ma ka lā mua ma ka helu 4-(1).ʻIke ʻia ka degere dispersion o kēlā me kēia pāpaʻi kumu e ka dispersion degere ma ke ʻano he kuhikuhi
ʻO ka paʻa o ka mālama ʻana, ʻoi aku ka liʻiliʻi o ka hoʻopuehu ʻana, ʻoi aku ka maikaʻi o ka mālama ʻana o ka paʻi kumu.
ʻO ka hoʻāʻo paheʻe
E hoʻomaloʻo mua i ka lole pulupulu e paʻi ʻia i ke kaumaha mau, kaupaona a hoʻopaʻa ʻia ma ke ʻano he mA;a laila hoʻomaloʻo i ka lole pulupulu ma hope o ka paʻi ʻana i ke kaumaha mau, kaupaona a hoʻopaʻa ʻia
he mB;ʻO ka hope, maloʻo ka lole pulupulu i paʻi ʻia ma hope o ka mahu ʻana, ke kopa a me ka holoi ʻana i ke kaumaha mau, kaupaona ʻia a kākau ʻia ma ke ʻano he mC
Hoao lima
ʻO ka mea mua, hoʻohana ʻia nā lole pulupulu ma mua a ma hope o ka paʻi ʻana e like me ka mea e pono ai, a laila hoʻohana ʻia ke ʻano mea kani phabrometer e ana i ka lima lima o nā lole.
ʻO ka manaʻo lima o ka lole ma mua a ma hope o ka paʻi ʻana ua loiloi piha ʻia ma ka hoʻohālikelike ʻana i nā ʻano manaʻo lima ʻekolu o ka maʻalahi, ʻoʻoleʻa a me ka palupalu.
Ka ho'āʻo wikiwiki kala o nā lole paʻi
(1) ʻO ka wikiwiki o ka waihoʻoluʻu i ka hoʻāʻo ʻana
E ho'āʻo e like me GB/T 3920-2008 "Ka wikiwiki o ka waihoʻoluʻu i ka hamo ʻana no ka hoʻāʻo ʻana i ka wikiwiki o nā lole".
(2) Ho'āʻo wikiwiki kala i ka holoi ʻana
E ho'āʻo e like me GB/T 3921.3-2008 "Ka wikiwiki o ka waihoʻoluʻu i ke kopa ʻana i ka hoʻāʻo wikiwiki ʻana o ka waihoʻoluʻu".
maʻiʻo paʻa paʻa kumu/%
CMC
HEC
HEMCC
SA
ʻAi ʻokoʻa o ka viscosity o ʻehā ʻano pāpaʻi kumu me ka maʻiʻo paʻa
ʻO ka sodium alginate (SA), carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC) a me
ʻEhā ʻano pāpaʻi kumu o hydroxyethyl carboxymethyl cellulose (HECMC) ma ke ʻano he hana o ka ʻike paʻa.
, ua hoʻonui ka viscosity o nā pāpaʻi kumu ʻehā me ka piʻi ʻana o ka mea paʻa paʻa, akā ʻaʻole i like nā ʻano o ka paʻi ʻana o nā pāpaʻi kumu ʻehā, ma waena o SA.
ʻO ka waiwai paʻi o CMC a me HECMC ka mea maikaʻi loa, a ʻo ka waiwai hoʻopili o HEC ka mea ʻino loa.
Ua ana ʻia nā ʻāpana hana rheological o nā pāpaʻi kumu ʻehā e MCR301 rotational rheometer.
- ʻO ka pihi viscosity ma ke ʻano he hana o ka shear rate.Ua hoʻonui ʻia nā viscosities o nā pāpaʻi kumu ʻehā me ka nui o ka shear rate.
hoʻonui a emi iho, SA, CMC, HEC a me HECMC nā wai pseudoplastic āpau.Papa 4.3 Nā waiwai PVI o nā pāpaʻi maka
ʻAno paʻi maka SA CMC HEC HECMC
Waiwai PVI 0.813 0.526 0.621 0.726
Hiki ke ʻike ʻia mai ka Papa 4.3 ka nui o ka viscosity index paʻi o SA a me HECMC a ʻoi aku ka liʻiliʻi o ka viscosity structural, ʻo ia hoʻi, ka paʻi kumu mua.
Ma lalo o ka hana haʻahaʻa haʻahaʻa haʻahaʻa, liʻiliʻi ka loli viscosity, a paʻakikī ke hoʻokō i nā koi o ka pale rotary a me ka paʻi papa;ʻoiai ʻo HEC a me CMC
ʻO 0.526 wale nō ka helu viscosity paʻi ʻana o CMC, a ʻoi aku ka nui o kona viscosity, ʻo ia hoʻi, ʻoi aku ka haʻahaʻa o ka paʻi paʻi kumu.
Ma lalo o ka hana, ʻoi aku ka liʻiliʻi o ka loli viscosity, hiki ke hoʻokō maikaʻi i nā koi o ka pale rotary a me ka paʻi paʻi paʻa, a hiki ke kūpono no ka paʻi ʻana i ka pale me ka helu mesh kiʻekiʻe.
E maʻalahi ka loaʻa ʻana o nā mamana a me nā laina.Viscosity/mPa·s
Nā ʻāpana Rheological o ʻehā 1% paʻa paʻa maka
ʻAno paʻi maka SA CMC HEC HECMC
h/cm 0.33 0.36 0.41 0.39
ʻO nā hopena hoʻāʻo paʻa wai o 1% SA, 1% CMC, 1% HEC a me 1% HECMC paʻi kumu.
Ua ʻike ʻia ʻo ka ʻoi aku ka maikaʻi o ka paʻa wai o SA, ukali ʻia e CMC, a ʻoi aku ka maikaʻi e HECMC a me HEC.
Hoʻohālikelike Hoʻohālikelike Kemika
Hoʻololi o ka viscosity paste kumu o SA, CMC, HEC a me HECMC
ʻAno paʻi maka SA CMC HEC HECMC
Viscosity/mPa·s
Viscosity ma hope o ka hoʻohui ʻana i ka urea/mPa s
Viscosity ma hope o ka hoʻohui ʻana i ka paʻakai anti-staining S/mPa s
Viscosity ma hope o ka hoʻohui ʻana i ka sodium bicarbonate/mPa s
Hoʻololi nā viscosities paste mua ʻehā o SA, CMC, HEC a me HECMC me nā mea hoʻohui nui ʻekolu: urea, anti-staining paʻakai S a
Hōʻike ʻia nā loli i ka hoʻohui ʻana o ka sodium bicarbonate ma ka papa., ka hoʻohui ʻana o ʻekolu mau mea hoʻohui nui, i ka paʻi kumu
ʻOkoʻa loa ka nui o ka hoʻololi ʻana i ka viscosity.I waena o lākou, hiki i ka hoʻohui ʻana o ka urea ke hoʻonui i ka viscosity o ka paʻi kumu ma kahi o 5%, ʻo ia paha.
Hoʻokumu ʻia ia e ka hopena hygroscopic a puffing o ka urea;a ʻo ka paʻakai anti-staining S e hoʻonui iki i ka viscosity o ka paʻi kumu, akā liʻiliʻi ka hopena;
ʻO ka hoʻohui ʻana o ka sodium bicarbonate i hoʻemi nui i ka viscosity o ka paʻi kumu, i waena o ka CMC a me HEC i emi nui, a me ka viscosity o HECMC/mPa·s
66
ʻO ka lua, ʻoi aku ka maikaʻi o ka hoʻohālikelike ʻana o SA.
SA CMC HEC HECMC
-15
-10
-5
05
Urea
ʻO ka paʻakai hoʻopaʻapaʻa S
sodium bicarbonate
Hoʻohālikelike o SA, CMC, HEC a me HECMC stock pastes me ʻekolu mau kemika
Hoʻohālikelike i ka paʻa o ka mālama ʻana
ʻO ka hoʻopuehu ʻana o ka viscosity i kēlā me kēia lā o nā pāpaʻi maka
ʻAno paʻi maka SA CMC HEC HECMC
Hoʻopuehu/% 8.68 8.15 8. 98 8.83
ʻO ke degere hoʻopuehu o SA, CMC, HEC a me HECMC ma lalo o ka viscosity o kēlā me kēia lā o nā pastes kumu ʻehā, ka dispersion.
ʻOi aku ka liʻiliʻi o ka waiwai o ka degere, ʻoi aku ka maikaʻi o ka mālama ʻana i ka paʻa o ka paʻi kumu.Hiki ke ʻike ʻia mai ka papa ʻaina ʻoi aku ka maikaʻi o ka mālama ʻana o ka CMC raw paste
He ʻilihune ka paʻa o ka mālama ʻana o HEC a me HECMC raw paste, akā ʻaʻole nui ka ʻokoʻa.
Ka manawa hoʻouna: Sep-29-2022