Takaitaccen Bayani:Wannan takarda ta bincika tasirin da dokar cellulose ether akan manyan kaddarorin manne na tayal ta hanyar gwaje-gwajen orthogonal. Babban fannoni na inganta shi suna da wasu mahimmancin tunani don daidaita wasu kaddarorin manne na tayal.
A zamanin yau, samarwa, sarrafawa da amfani da cellulose ether a ƙasata suna kan gaba a duniya. Ci gaba da haɓaka da amfani da cellulose ether shine mabuɗin haɓaka sabbin kayan gini a ƙasata. Tare da ci gaba da haɓaka manne na tayal da ci gaba da ingantawa da haɓaka aikinsu, an ƙara wa zaɓin nau'ikan aikace-aikacen turmi a cikin sabbin kasuwar kayan gini. Duk da haka, yadda ake ƙara inganta babban aikin manne na tayal ya zama ci gaban kasuwar manne na tayal. sabuwar alkibla.
1. Gwada kayan aiki
Siminti: An yi amfani da simintin PO 42.5 na yau da kullun na Portland wanda Changchun Yatai ya samar a wannan gwajin.
Yashi mai girman ma'adini: An yi amfani da raga mai girman 50-100 a wannan gwajin, wanda aka samar a Dalin, Inner Mongolia.
Foda mai sake juyawa: An yi amfani da SWF-04 a wannan gwajin, wanda Shanxi Sanwei ya samar.
Zaren itace: Kayan gini na Changchun Huihuang ne ke samar da zaren da aka yi amfani da shi a wannan gwajin.
Cellulose ether: Wannan gwajin yana amfani da methyl cellulose ether mai danko na 40,000, wanda Shandong Ruitai ya samar.
2. Hanyar gwaji da nazarin sakamako
Hanyar gwajin ƙarfin haɗin gwiwa tana nufin daidaitaccen JC/T547-2005. Girman kayan gwajin shine 40mm x 40mm x 160mm. Bayan an yi shi, a bar shi ya tsaya na tsawon kwana 1 sannan a cire aikin. An warke a cikin akwatin danshi mai ɗorewa na tsawon kwanaki 27, an haɗa kan zane da tubalin gwajin da resin epoxy, sannan a sanya shi a cikin akwatin zafin jiki da danshi mai ɗorewa a zafin jiki na (23±2)°C da ɗanɗanon dangi na (50±5)%. 1d, Duba samfurin don tsagewa kafin gwajin. Shigar da kayan aikin a cikin injin gwajin lantarki na duniya don tabbatar da cewa haɗin da ke tsakanin kayan aiki da injin gwaji bai lanƙwasa ba, ja samfurin a gudun (250±50) N/s, kuma rubuta bayanan gwajin. Adadin siminti da aka yi amfani da shi a wannan gwajin shine 400g, jimlar nauyin sauran kayan shine 600g, rabon haɗa ruwa da ruwa an daidaita shi a 0.42, kuma an ɗauki ƙirar orthogonal (maki 3, matakai 3), kuma abubuwan sune abun da ke cikin cellulose ether, abun da ke cikin foda roba da rabon siminti da yashi, bisa ga ƙwarewar bincike da ta gabata don tantance takamaiman adadin kowane abu.
2.1 Sakamakon gwaji da nazari
Gabaɗaya, manne-manne na tayal suna rasa ƙarfin haɗin gwiwa bayan nutsewa cikin ruwa.
Daga sakamakon gwajin da aka samu ta hanyar gwajin orthogonal, za a iya gano cewa ƙara yawan cellulose ether da foda roba na iya inganta ƙarfin haɗin gwiwa na manne tayal zuwa wani mataki, kuma rage rabon turmi da yashi na iya rage ƙarfin haɗin gwiwa, amma sakamakon gwajin 2 da aka samu ta hanyar gwajin orthogonal ba zai iya nuna tasirin abubuwan uku a kan ƙarfin haɗin gwiwa na manne tayal na yumbu ba bayan jiƙa a cikin ruwa da haɗin gwiwa bayan mintuna 20 na bushewa. Saboda haka, tattauna ƙimar haɗin gwiwa na raguwar ƙarfin haɗin gwiwa bayan nutsewa cikin ruwa zai iya nuna tasirin abubuwan uku a kansa. Darajar haɗin gwiwa na raguwar ƙarfi ana ƙaddara ta hanyar ƙarfin haɗin gwiwa na asali da ƙarfin haɗin gwiwa bayan nutsewa cikin ruwa. An ƙididdige rabon bambancin ƙarfin haɗin gwiwa da ƙarfin haɗin gwiwa na asali.
Binciken bayanan gwajin ya nuna cewa ta hanyar ƙara yawan sinadarin cellulose ether da foda na roba, ƙarfin haɗin gwiwa bayan nutsewa cikin ruwa zai iya ɗan inganta. Ƙarfin haɗin gwiwa na 0.3% ya fi na 0.1% girma da 16.0%, kuma ci gaban ya fi bayyana lokacin da aka ƙara yawan foda na roba; Lokacin da adadin ya kai 3%, ƙarfin haɗin gwiwa yana ƙaruwa da 46.5%; ta hanyar rage rabon turmi da yashi, ƙarfin haɗin gwiwa na nutsewa cikin ruwa zai iya raguwa sosai. Ƙarfin haɗin gwiwa ya ragu da 61.2%. Ana iya gani a zahiri daga Hoto na 1 cewa lokacin da adadin foda na roba ya ƙaru daga 3% zuwa 5%, ƙimar haɗin gwiwa na raguwar ƙarfin haɗin gwiwa yana ƙaruwa da 23.4%; adadin cellulose ether yana ƙaruwa daga 0.1% zuwa A cikin tsarin 0.3%, ƙimar haɗin gwiwa na raguwar ƙarfin haɗin gwiwa ya ƙaru da 7.6%; yayin da ƙimar ƙarfin haɗin gwiwa ta ƙaru da kashi 12.7% lokacin da rabon turmi da yashi ya kasance 1:2 idan aka kwatanta da 1:1. Bayan kwatantawa a cikin hoton, za a iya gano cewa cikin sauƙi daga cikin abubuwa uku, adadin foda na roba da rabon turmi da yashi suna da tasiri mafi bayyana akan ƙarfin haɗin gwiwa na nutsewa cikin ruwa.
A cewar JC/T 547-2005, lokacin bushewar manne na tayal ya fi ko kuma daidai yake da minti 20. Ƙara yawan sinadarin cellulose ether na iya sa ƙarfin haɗin gwiwa ya ƙaru a hankali bayan an yi amfani da shi na minti 20, kuma yawan sinadarin cellulose ether shine 0.2%, 0.3%, idan aka kwatanta da adadin 0.1%. Ƙarfin haɗin gwiwa ya ƙaru da kashi 48.1% da 59.6% bi da bi; ƙara yawan foda na roba kuma zai iya sa ƙarfin haɗin gwiwa ya ƙaru a hankali bayan an yi amfani da shi na tsawon ruwan sama 20, adadin foda na roba shine 4%, 5%% idan aka kwatanta da kashi 3%, ƙarfin haɗin gwiwa ya ƙaru da kashi 19.0% da 41.4% bi da bi; rage rabon turmi da yashi, ƙarfin haɗin gwiwa bayan mintuna 20 na iska ya ragu a hankali, kuma rabon turmi da yashi shine 1:2 Idan aka kwatanta da rabon turmi na 1:1, ƙarfin haɗin gwiwa ya ragu da kashi 47.4%. Idan aka yi la'akari da ƙimar rage ƙarfin haɗinsa, za a iya nuna tasirin abubuwa daban-daban a sarari, ta hanyar abubuwa uku, za a iya gano a sarari cewa ƙimar raguwar ƙarfin haɗin gwiwa bayan mintuna 20 na bushewa, bayan mintuna 20 na bushewa, tasirin rabon turmi akan ƙarfin haɗin gwiwa ba shi da mahimmanci kamar da, amma tasirin abun cikin cellulose ether ya fi bayyana a wannan lokacin. Tare da ƙaruwar abun cikin cellulose ether, ƙimar ƙarfinsa ta ragu a hankali kuma lanƙwasa tana da laushi. Ana iya ganin cewa cellulose ether yana da kyakkyawan tasiri akan inganta ƙarfin haɗin gwiwa na manne tayal bayan mintuna 20 na bushewa.
2.2 Ƙayyade tsari
Ta hanyar gwaje-gwajen da ke sama, an sami taƙaitaccen bayani game da sakamakon ƙirar gwajin orthogonal.
Za a iya zaɓar rukuni na haɗakar A3 B1 C2 tare da kyakkyawan aiki daga taƙaitaccen sakamakon ƙira na gwajin orthogonal, wato, abun da ke cikin cellulose ether da foda roba shine 0.3% da 3%, bi da bi, kuma rabon turmi da yashi shine 1:1.5.
3. Kammalawa
(1) Ƙara yawan cellulose ether da foda roba na iya ƙara ƙarfin haɗin tayal ɗin zuwa wani mataki, yayin da rage rabon turmi da yashi, ƙarfin haɗin tayal ɗin yana raguwa, da kuma rabon turmi da yashi. Tasirin adadin cellulose ether akan ƙarfin haɗin tayal ɗin tayal ɗin tayal ɗin tayal ɗin bayan nutsewa cikin ruwa ya fi mahimmanci fiye da tasirin adadin cellulose ether akan sa;
(2) Adadin cellulose ether yana da tasiri mafi girma akan ƙarfin haɗin gwiwa na manne tayal bayan mintuna 20 na bushewa, yana nuna cewa ta hanyar daidaita adadin cellulose ether, manne tayal ɗin zai iya inganta sosai bayan mintuna 20 na bushewa. Bayan ƙarfin haɗin gwiwa;
(3) Idan adadin foda na roba ya kai kashi 3%, adadin cellulose ether shine 0.3%, kuma rabon turmi da yashi shine 1:1.5, aikin manne tayal ya fi kyau, wanda shine mafi kyau a cikin wannan gwajin. Haɗin matakin mai kyau.
Lokacin Saƙo: Fabrairu-23-2023