1. Nhanganyaya
Kubva pakatanga dhayi reactive, sodium alginate (SA) ndiyo yave iri paste yekudhinda dhayi pamachira edonje.
Kushandisa mhando nhatu dzecellulose ethersCMC, HEC uye HECMC dzakagadzirirwa muChitsauko 3 sepakutanga paste, dzakaiswa kune reactive dhayi kudhinda zvichiteerana.
ruva.Izvo zvakakosha zvivakwa uye zvimiro zvekudhinda zveatatu mapesiti akaedzwa uye akaenzaniswa neSA, uye mafibhi matatu akaedzwa.
Kudhinda zvinhu zvevhitamini ethers.
2 Chikamu chekuedza
Kuedza zvinhu uye zvinodhaka
Raw materials nemishonga inoshandiswa mukuedzwa.Pakati pavo, machira ekudhinda dhayi anochinja anga achidhiza nekunatsa, nezvimwe.
Mutsara we pre-yakagadzirwa pure donje plain weave, density 60/10cm×50/10cm, shinda inoruka 21tex×21tex.
Kugadzirira kwekudhinda paste uye ruvara rwemavara
Kugadzirira kudhinda paste
Kune mana ekutanga paste eSA, CMC, HEC uye HECMC, maererano nereshiyo yezvakasiyana zvakasimba zvemukati, pasi pezvinhu zvinokurudzira.
Zvadaro, zvishoma nezvishoma wedzera paste mumvura, ramba uchikurudzira kwekanguva, kusvikira paste yepakutanga yave yakafanana uye yakajeka, rega kubvongodza, uye uiise pachitofu.
Mugirazi, regai kumira usiku hwose.
Kugadzirira kudhinda paste
Kutanga nyungudutsa urea uye anti-dyeing munyu S nemvura shoma, wobva wawedzera madhayi akanyungudutswa mumvura, kupisa uye kumutsa mumvura inodziya yekugeza.
Mushure mekukuchidzira kwenguva yakati, wedzerai doro rakasefa kudhayi rekutanga uye kurunga zvakaenzana.Wedzera dissolve kusvika watanga kudhinda
Yakanaka sodium bicarbonate.Iyo fomula yekunamira kwemavara ndeye: reactive dhayi 3%, yepakutanga paste 80% (yakasimba yemukati 3%), sodium bicarbonate 3%,
Anti-kusvibiswa munyu S i2%, urea i5%, uye pakupedzisira mvura inowedzerwa ku100%.
kudhinda maitiro
Machira edonje anochinja dhayi kudhinda: kugadzirira kudhinda namira → magineti kudhinda (pakamuri tembiricha uye kudzvanywa, kudhinda katatu) → kuomesa (105℃, 10min) → kupisa (105±2℃, 10min) → kugeza mvura inotonhora → inopisa Kugeza nemvura (80 ℃)→ sipo kufashaira (Sipo flakes 3g/L,
100℃, 10min) → kugeza nemvura inopisa (80℃) → kugeza nemvura inotonhora → kuomesa (60℃).
Basic performance test yepakutanga paste
Paste rate bvunzo
Mapepa mana ekutanga eSA, CMC, HEC uye HECMC ane akasiyana akasimba emukati akagadzirwa, uye Brookfield DV-Ⅱ
Iyo viscosity yepaste yega yega ine zvakasiyana yakasimba yemukati yakaedzwa ne viscometer, uye shanduko curve yeviscosity neconcentration yaive iyo paste yekuumba mwero wepaste.
curve.
Rheology uye Printing Viscosity Index
Rheology: MCR301 rotational rheometer yakashandiswa kuyera viscosity (η) yepakutanga paste pamhando dzakasiyana dzeshear.
Shanduko curve yeshear rate ndiyo rheological curve.
Kudhinda viscosity index: Iyo yekudhinda viscosity index inoratidzwa nePVI, PVI = η60/η6, uko η60 uye η6 zvichiteerana.
Iyo viscosity yepakutanga paste yakayerwa neBrookfield DV-II viscometer pane imwecheteyo rotor kumhanya kwe60r/min uye 6r/min.
bvunzo yekuchengeta mvura
Yeresa 25g yepaste yekutanga mubeaker ye80mL, uye zvishoma nezvishoma wobva wawedzera 25mL yemvura yakasanganiswa uchikurudzira kugadzira musanganiswa.
Inosanganiswa zvakaenzana.Tora bepa resefa yehuwandu hurefu × hupamhi hwe10cm × 1cm, womaka imwe mugumo webepa resefa ine mutsetse wechiyero, wobva waisa magumo akaiswa mukati menamira, kuti mutsara wechiyero uenderane nepamusoro pepasi, uye iyo nguva inotangwa mushure mekuiswa kwesefa bepa, uye inonyorwa pabepa resefa mushure memaminitsi makumi matatu.
Kureba kunokwira mwando.
4 Chemical Compatibility Test
Nezve reactive dhayi kudhinda, edza kuenderana kweyekutanga paste uye mamwe madhayi akawedzerwa mukudhinda paste,
Kureva, kugarisana pakati pekutanga paste uye zvinhu zvitatu (urea, sodium bicarbonate uye anti-staining munyu S), iwo chaiwo matanho ekuyedza ndeaya anotevera:
(1) Pakuedzwa kwereferensi viscosity yepakutanga paste, wedzera 25mL yemvura yakasvibiswa kusvika ku50g yepakutanga kudhinda paste, fambisa zvakaenzana, uye wozoyera viscosity.
Iyo yakawanikwa viscosity kukosha inoshandiswa sereferensi viscosity.
(2) Kuti uedze viscosity yepaste yepakutanga mushure mekuwedzera zvinhu zvakasiyana-siyana (urea, sodium bicarbonate uye anti-staining salt S), isa yakagadzirwa 15%
Mushonga weUrea (chikamu chehuwandu), 3% anti-staining salt S solution (chikamu chiduku) uye 6% sodium bicarbonate solution (chikamu chehuwandu)
25mL yakawedzerwa kune 50g yepakutanga paste zvakateerana, yakasimudzwa zvakaenzana uye yakaiswa kweimwe nguva yenguva, uye ndokuyera viscosity yepakutanga paste.Pakupedzisira, viscosity ichayerwa
Iwo maviscosity values akafananidzwa neinowirirana referensi viscosity, uye iyo muzana yekushanduka kweviscosity yepakutanga paste isati yasvika uye mushure mekuwedzera dhayi yega yega uye makemikari zvinhu zvakaverengerwa.
Kuchengetedza Kugadzikana Muedzo
Chengetedza paste yepakutanga patembiricha yekamuri (25°C) pasi pekumanikidzwa kwakajairwa kwemazuva matanhatu, pima viscosity yenamira yepakutanga zuva rega rega pasi pemamiriro akafanana, uye verenga viscosity yepaste yekutanga mushure memazuva matanhatu kana ichienzaniswa nekuyerwa kweviscosity. zuva rekutanga neformula 4-(1).Dispersion degree yega yega paste yepakutanga inoongororwa nedispersion degree seindex
Kugadzikana kwekuchengetedza, kudiki kupararira, zviri nani kuchengetedza kugadzikana kwepaste yepakutanga.
Slipping rate test
Kutanga kuomesa jira rekotoni kuti ridhindwe kune uremu hunogara huripo, uremu uye unyore iyo se mA;wobva waomesa jira rekotoni mushure mekudhinda kune uremu hunogara huripo, uremedze uye unyore
iri mB;Pakupedzisira, jira redonje rakadhindwa mushure mekupisa, sipo uye kugeza rinoomeswa kuti rirambe richirema, rinoyerwa uye rakanyorwa semC.
Muedzo wemaoko
Kutanga, machira ekotoni asati uye mushure mekudhinda anotorwa sezvinodiwa, uye ipapo phabrometer jira rejira rekushandisa rinoshandiswa kuyera ruoko rwemicheka.
Manzwiro emaoko ejira risati radhindwa uye mushure mekudhindwa kwakaongororwa zvakadzama nekuenzanisa matatu emaoko ekunzwa maitiro ekutsvedzerera, kuoma uye kupfava.
Rudzi rwekutsanya bvunzo dzemachira akadhindwa
(1) Kumhanya kwemavara kusvika pakukwesha bvunzo
Edza zvinoenderana neGB/T 3920-2008 "Kutsanya kwemavara pakukwesha kuitira bvunzo dzekumhanya kwemavara emachira".
(2) Muedzo wekutsanya kwemavara kukuwacha
Edza zvinoenderana neGB/T 3921.3-2008 "Kutsanya kwemavara kune sipo yemachira kukurumidza bvunzo".
Nama yekutanga yakasimba zvemukati/%
CMC
HEC
HEMCC
SA
Variation curve ye viscosity yemhando ina dzepakutanga paste ine yakasimba yemukati
sodium alginate (SA), carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC) uye
Viscosity macurves emhando ina dzepakutanga paste yehydroxyethyl carboxymethyl cellulose (HECMC) sebasa rezvakasimba zvemukati.
, iyo viscosity yezvinyorwa zvina zvepakutanga zvakawedzera nekuwedzera kwezvinyorwa zvakasimba, asi maitiro ekugadzira-paste ezvinyorwa zvina zvepakutanga zvakanga zvisina kufanana, pakati peiyo SA.
Iyo yekumisa pfuma yeCMC neHECMC ndiyo yakanakisa, uye yekumisa pfuma yeHEC ndiyo yakaipisisa.
Iyo rheological performance curves yeana epakutanga mapete akayerwa neMCR301 rotational rheometer.
- Viscosity curve sebasa reshear rate.Iyo viscosities yechina yepakutanga paste yakawedzera neshear rate.
kuwedzera uye kudzikira, SA, CMC, HEC uye HECMC ese ari pseudoplastic fluid.Tafura 4.3 PVI kukosha kweakasiyana mbichana paste
Raw namatidza mhando SA CMC HEC HECMC
PVI kukosha 0.813 0.526 0.621 0.726
Zvinogona kuoneka kubva Tafura 4.3 kuti kudhinda viscosity index yeSA neHECMC yakakura uye iyo structural viscosity idiki, ndiko kuti, kudhinda kwekutanga paste.
Pasi pechiito chesimba rakadzika reshear, iyo viscosity shanduko mwero idiki, uye zvakaoma kuzadzisa zvinodiwa zve rotary screen uye flat screen kudhinda;nepo HEC uye CMC
Iyo yekudhinda viscosity index yeCMC ingori 0.526, uye maitiro ayo viscosity yakakura, ndiko kuti, yekutanga kudhinda paste ine yakaderera shear simba.
Pasi pechiito, iyo viscosity shanduko mwero iri pakati nepakati, iyo inogona kuzadzisa zvirinani zvinodiwa zve rotary screen uye flat screen printing, uye inogona kuve yakakodzera kutenderera screen kudhinda ine yakakwirira mesh nhamba.
Zviri nyore kuwana mapatani akajeka uye mitsetse.Viscosity/mPa·s
Rheological curves yechina 1% solids yakasvibira paste
Raw namatidza mhando SA CMC HEC HECMC
h/cm 0.33 0.36 0.41 0.39
Mvura yekubata bvunzo mhinduro ye1% SA, 1% CMC, 1% HEC uye 1% HECMC yekutanga paste.
Zvakaonekwa kuti mvura inobata simba reSA ndiyo yakanakisisa, ichiteverwa neCMC, uye yakaipisisa neHECMC neHEC.
Chemical Compatibility Comparison
Kusiyana kweiyo yekutanga paste viscosity yeSA, CMC, HEC uye HECMC
Raw namatidza mhando SA CMC HEC HECMC
Viscosity/mPa·s
Viscosity mushure mekuwedzera urea/mPa s
Viscosity mushure mekuwedzera anti-staining munyu S/mPa s
Viscosity mushure mekuwedzera sodium bicarbonate/mPa s
Iwo mana ekutanga paste viscosities eSA, CMC, HEC uye HECMC anosiyana neatatu makuru ekuwedzera: urea, anti-staining munyu S uye
Shanduko mukuwedzera kwe sodium bicarbonate inoratidzwa mutafura., kuwedzerwa kwezvitatu zvakakosha zvinowedzera, kune yepakutanga paste
Chiyero chekuchinja mu viscosity chinosiyana zvakanyanya.Pakati pavo, kuwedzerwa kwe urea kunogona kuwedzera viscosity yepakutanga paste ne5%, iyo inogona kuva.
Inokonzerwa nehygroscopic uye puffing effect ye urea;uye iyo anti-staining munyu S ichawedzerawo zvishoma viscosity yepakutanga paste, asi ine zvishoma zvishoma;
Kuwedzerwa kwe sodium bicarbonate zvakanyanya kuderedza viscosity yepakutanga paste, pakati peiyo CMC neHEC yakaderera zvakanyanya, uye viscosity yeHECMC / mPa · s.
66
Chechipiri, kuenderana kweSA kuri nani.
SA CMC HEC HECMC
-15
-10
-5
05
Urea
Anti-staining munyu S
sodium bicarbonate
Kuenderana kweSA, CMC, HEC uye HECMC stock paste ine makemikari matatu
Kuenzanisa kwekugadzikana kwekuchengetedza
Kupararira kwezuva nezuva viscosity yeakasiyana mbishi pastes
Raw namatidza mhando SA CMC HEC HECMC
Kupararira/% 8.68 8.15 8. 98 8.83
ndiyo dispersion degree yeSA, CMC, HEC uye HECMC pasi pezuva nezuva viscosity yeasina epakutanga paste, kupararira.
Iyo diki kukosha kwedhigirii, zviri nani kuchengetedza kugadzikana kweinowirirana yepakutanga paste.Izvo zvinogona kuoneka kubva patafura kuti kuchengetedza kugadzikana kweCMC mbishi paste kwakanakisa
Kugadzikana kwekuchengetedza kweHEC uye HECMC paste yakasvibirira ishoma, asi mutsauko hauna kukosha.
Nguva yekutumira: Sep-29-2022