1 Intangiriro
Kuva amarangi atagaragara, sodium alginate (SA) niyo yabaye paste nyamukuru yo gucapa irangi ryoroshye kumyenda y'ipamba.
Gukoresha ubwoko butatu bwaselile ethersCMC, HEC na HECMC byateguwe mu gice cya 3 nka paste yumwimerere, byashyizwe mubikorwa byo gucapa irangi.
indabyo.Ibintu shingiro hamwe nicapiro ryimiterere ya paste eshatu barageragejwe kandi ugereranije na SA, hanyuma fibre eshatu zirageragezwa.
Gucapa ibintu bya vitamine ethers.
Igice cyubushakashatsi
Ibikoresho byo gupima nibiyobyabwenge
Ibikoresho bito n'ibiyobyabwenge bikoreshwa mugupimisha.Muri byo, imyenda yo gusiga irangi irangi yagiye isuzugura no gutunganya, nibindi.
Urukurikirane rwabanje gutunganywa neza ubudodo bworoshye, ubucucike 60 / 10cm × 50 / 10cm, kuboha ubudodo 21tex × 21tex.
Gutegura icapiro rya paste hamwe namabara
Gutegura icapiro
Kuri paste enye zumwimerere za SA, CMC, HEC na HECMC, ukurikije igipimo cyibintu bitandukanye bitandukanye, mubihe bitangaje.
Noneho, shyiramo buhoro buhoro ayo mazi mumazi, komeza ukangure mugihe runaka, kugeza paste yumwimerere ari imwe kandi ibonerana, reka guhagarika, hanyuma ubishyire ku ziko.
Mu kirahure, reka uhagarare ijoro ryose.
Gutegura icapiro
Banza ushongeshe urea n'umunyu urwanya irangi S hamwe n'amazi make, hanyuma ushyiremo amarangi adasanzwe ashonga mumazi, ubushyuhe hanyuma ubyereke mumazi ashyushye
Nyuma yo gukurura mugihe runaka, ongeramo ibinyobwa bisize irangi kuri paste yumwimerere hanyuma ubireke neza.Ongeraho gushonga kugeza utangiye gucapa
Sodium nziza bicarbonate.Amata ya paste yamabara ni: irangi ryirangi 3%, paste yumwimerere 80% (ibirimo 3%), sodium bicarbonate 3%,
Umunyu urwanya kwanduza S ni 2%, urea ni 5%, hanyuma amazi yongerwa 100%.
uburyo bwo gucapa
Imyenda y'ipamba reaction yo gusiga irangi: gutegura paste yo gucapa → icapiro rya magnetiki (ku cyumba cy'ubushyuhe n'umuvuduko, gucapa inshuro 3) → gukama (105 ℃, 10min) → guhumeka (105 ± 2 ℃, 10min) → gukaraba amazi akonje → ashyushye Gukaraba n'amazi (80 ℃) → guteka isabune (isabune ya 3g / L,
100 ℃, 10min) → gukaraba amazi ashyushye (80 ℃) → gukaraba amazi akonje → gukama (60 ℃).
Ikizamini cyibanze cyibizamini bya paste yumwimerere
Kwandika ikizamini
Hateguwe paste enye zumwimerere za SA, CMC, HEC na HECMC zirimo ibintu bikomeye bitandukanye, na Brookfield DV-Ⅱ
Ubukonje bwa buri paste burimo ibintu bitandukanye bikomeye byageragejwe na viscometer, kandi ihinduka ryumurongo wibicucu hamwe nibitekerezo byari igipimo cyo gushiraho paste.
umurongo.
Rheologiya no Gucapa Indangantego
Rheologiya: MCR301 izenguruka rheometero yakoreshejwe mu gupima ubwiza (η) bwa paste yumwimerere ku bipimo bitandukanye.
Guhindura umurongo wikigereranyo cyikigero ni rheologiya.
Icapa ryerekana ububobere: Icapa ryerekana ububobere bwerekanwa na PVI, PVI = η60 / η6, aho η60 na η6 biri
Ubukonje bwa paste yumwimerere bupimwe na viscometer ya Brookfield DV-II kumuvuduko umwe wa rotor ya 60r / min na 6r / min.
ikizamini cyo gufata amazi
Gupima 25g ya paste yumwimerere muri 80mL ya beaker, hanyuma wongereho buhoro buhoro 25mL yamazi yatoboye mugihe ukurura kugirango uvange.
Bivanze neza.Fata impapuro ziyungurura zifite uburebure × ubugari bwa 10cm × 1cm, hanyuma ushire akamenyetso kamwe k'urupapuro rwunguruzo hamwe n'umurongo wapimye, hanyuma ushyiremo impera yanditswemo muri paste, kugirango umurongo wikigereranyo uhure nubuso bwa paste, na igihe gitangiye nyuma yo gushungura impapuro zinjijwe, kandi byandikwa kumpapuro zungurura nyuma yiminota 30.
Uburebure bwamazi azamuka.
Ikizamini cyo guhuza imiti
Kugirango icapwe risize irangi, gerageza guhuza paste yumwimerere nandi marangi yongewe mumacapiro,
Nukuvuga ko guhuza hagati ya paste yumwimerere nibice bitatu (urea, sodium bicarbonate na anti-staining umunyu S), intambwe yihariye yikizamini niyi ikurikira:
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Agaciro ka viscosity gaciro gakoreshwa nkibisobanuro bya viscosity.
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Umuti wa Urea (igice kinini), 3% birwanya umunyu S igisubizo (igice kinini) hamwe na 6% sodium bicarbonate yumuti (igice kinini)
25mL yongewe kuri 50g ya paste yumwimerere ikurikiranye, ikangurwa neza igashyirwa mugihe runaka, hanyuma igapima ubwiza bwa paste yumwimerere.Hanyuma, ibipimo bizapimwa
Indangagaciro za viscosity zagereranijwe nuburinganire bujyanye, hamwe nijanisha ryimpinduka zijimye za paste yumwimerere mbere na nyuma yo kongeramo irangi nibikoresho bya chimique byabazwe.
Ikizamini gihamye
Bika paste yumwimerere mubushyuhe bwicyumba (25 ° C) munsi yumuvuduko usanzwe muminsi itandatu, upime ubwiza bwa paste yumwimerere burimunsi mubihe bimwe, hanyuma ubare ubwiza bwa paste yumwimerere nyuma yiminsi 6 ugereranije nubwiza bwapimwe kuri umunsi wambere ukoresheje formula 4- (1).Urwego rwo gutatanya rwa buri paste yumwimerere rusuzumwa nimpamyabumenyi yatanzwe nkurutonde
Ububiko butajegajega, ntoya itatanye, nibyiza kubika ububiko bwa paste yumwimerere.
Ikizamini cyo kunyerera
Banza wumishe umwenda w'ipamba kugirango ucapwe muburemere burigihe, upime kandi wandike nka mA;hanyuma wumishe umwenda wipamba nyuma yo gucapura kuburemere burigihe, gupima no kubyandika
ni mB;amaherezo, igitambaro cyanditseho ipamba nyuma yo guhumeka, isabune no gukaraba byumye kugeza kuburemere burigihe, bipimwa kandi byandikwa nka mC
Ikizamini cy'amaboko
Ubwa mbere, imyenda y'ipamba mbere na nyuma yo kuyicapura ikopororwa nkuko bisabwa, hanyuma igikoresho cya fabrometero gikoreshwa mugupima ubwiza bwimyenda.
Ibyiyumvo byamaboko yimyenda mbere na nyuma yo gucapwa byasuzumwe byimazeyo ugereranije amaboko atatu yiyumvamo ibiranga ubworoherane, gukomera no koroshya.
Ikizamini cyihuta cyibara ryimyenda yacapwe
(1) Kwihuta kwamabara kugirango ugerageze
Ikizamini ukurikije GB / T 3920-2008 “Kwihuta kw'ibara kugirango ukoreshe ibara ryihuta ry'imyenda”.
(2) Ikizamini cyihuta cyo gukaraba
Ikizamini ukurikije GB / T 3921.3-2008 “Kwihuta kwamabara kumasabune yimyenda yipimisha”.
Umwimerere wandike ibintu bikomeye /%
CMC
HEC
HEMCC
SA
Guhinduranya umurongo wubwiza bwubwoko bune bwa paste yumwimerere hamwe nibintu bikomeye
ni sodium alginate (SA), carboxymethyl selulose (CMC), hydroxyethyl selulose (HEC) na
Viscosity curve yubwoko bune bwa paste yumwimerere ya hydroxyethyl carboxymethyl selulose (HECMC) nkigikorwa cyibirimo bikomeye.
, ubwiza bwa paste enye zumwimerere bwiyongereye hamwe no kwiyongera kwibintu bikomeye, ariko imitunganyirize ya paste yibintu bine byumwimerere ntabwo byari bimwe, muri byo SA
Umutungo wa paste wa CMC na HECMC nibyiza, kandi imitungo ya paste ya HEC niyo mbi cyane.
Imikorere ya rheologiya yimirongo ine yumwimerere yapimwe na MCR301 izenguruka rheometero.
- Viscosity curve nkumurimo wigipimo cyogosha.Ubukonje bwa paste enye zumwimerere zose ziyongereye hamwe nigipimo cyogosha.
kwiyongera no kugabanuka, SA, CMC, HEC na HECMC byose ni amavuta ya pseudoplastique.Imbonerahamwe 4.3 PVI indangagaciro za paste zitandukanye
Ubwoko bubi bwanditse SA CMC HEC HECMC
PVI agaciro 0.813 0.526 0.621 0.726
Birashobora kugaragara kuva kumeza 4.3 ko icapiro ryibicuruzwa bya SA na HECMC ari binini kandi ubwiza bwimiterere ni buto, ni ukuvuga icapiro ryumwimerere
Mubikorwa byimbaraga zogosha, igipimo cyo guhinduka kwijimye ni gito, kandi biragoye kuzuza ibisabwa bya rotary ecran na ecran ya ecran;naho HEC na CMC
Icapiro ryerekana ububobere bwa CMC ni 0.526 gusa, kandi ubwiza bwimiterere yabyo ni nini cyane, ni ukuvuga, paste yumwimerere yo gucapa ifite imbaraga zo hasi.
Munsi yibikorwa, igipimo cyo guhinduka kwijimye kiringaniye, gishobora kuzuza neza ibisabwa bya rotine ya ecran na ecran ya ecran, kandi birashobora kuba byiza mugucapisha ecran hamwe numubare munini wa mesh.
Biroroshye kubona imiterere n'imirongo isobanutse.Viscosity / mPa · s
Imirongo ya rheologiya ya bane 1% ikomeye ya paste mbisi
Ubwoko bubi bwanditse SA CMC HEC HECMC
h / cm 0.33 0.36 0.41 0.39
Amazi afite ibisubizo byikizamini cya 1% SA, 1% CMC, 1% HEC na 1% HECMC paste yumwimerere.
Byagaragaye ko ubushobozi bwo gufata amazi ya SA aribwo bwiza, bukurikirwa na CMC, kandi bubi na HECMC na HEC.
Kugereranya imiti
Guhindura paste yumwimerere ya SA, CMC, HEC na HECMC
Ubwoko bubi bwanditse SA CMC HEC HECMC
Viscosity / mPa · s
Viscosity nyuma yo kongeramo urea / mPa s
Viscosity nyuma yo kongeramo umunyu urwanya S / mPa s
Viscosity nyuma yo kongeramo sodium bicarbonate / mPa s
Ibintu bine byibanze bya paste ya SA, CMC, HEC na HECMC biratandukanye ninyongera eshatu zingenzi: urea, umunyu urwanya S na
Impinduka mukongeramo sodium bicarbonate irerekanwa mumeza., hiyongereyeho ibintu bitatu byingenzi byongeweho, kuri paste yumwimerere
Igipimo cyimpinduka mubwiza buratandukanye cyane.Muri byo, kongeramo urea birashobora kongera ubwiza bwa paste yumwimerere hafi 5%, bishobora kuba
Biterwa n'ingaruka za hygroscopique na puffing ya urea;n'umunyu urwanya umwanda S nabyo bizongera gato ubwiza bwa paste yumwimerere, ariko bifite ingaruka nke;
Kwiyongera kwa sodium bicarbonate byagabanije cyane ubwiza bwa paste yumwimerere, muri byo CMC na HEC byagabanutse cyane, hamwe nubwiza bwa HECMC / mPa · s
66
Icyakabiri, guhuza SA nibyiza.
SA CMC HECMC
-15
-10
-5
05
Urea
Kurwanya umunyu S.
sodium bicarbonate
Guhuza ububiko bwa SA, CMC, HEC na HECMC hamwe nimiti itatu
Kugereranya ububiko buhamye
Gukwirakwiza ubwiza bwa buri munsi bwa paste mbisi zitandukanye
Ubwoko bubi bwanditse SA CMC HEC HECMC
Gutatana /% 8.68 8.15 8. 98 8.83
ni impamyabumenyi ya SA, CMC, HEC na HECMC munsi yubukonje bwa buri munsi bwa paste enye zumwimerere, gutatanya
Gutoya agaciro ka degre, nibyiza kubika ububiko bwa paste yumwimerere ihuye.Birashobora kugaragara kumeza ko kubika neza kwa CMC paste mbisi ari byiza
Ububiko butajegajega bwa HEC na HECMC paste mbisi birakennye, ariko itandukaniro ntabwo rifite akamaro.
Igihe cyo kohereza: Nzeri-29-2022