Hanyar don Ƙaddamar Ƙarfin Gel na Cellulose Ether

Don auna ƙarfincellulose ether gel, labarin ya gabatar da cewa ko da yake cellulose ether gel da jelly-like profile control agents suna da nau'o'in gelation daban-daban, za su iya amfani da kamanni a cikin bayyanar, wato, ba za su iya gudana ba bayan gelation A cikin ƙananan ƙananan ƙananan, hanyar lura da aka saba amfani da su. Ana amfani da hanyar juyawa da hanyar samun nasara don ƙididdige ƙarfin jelly don kimanta ƙarfin cellulose ether gel, kuma an ƙara sabon hanyar samun nasarar matsa lamba. An yi amfani da waɗannan hanyoyin guda huɗu don ƙayyade ƙarfin gel ether cellulose ta hanyar gwaje-gwaje. Sakamakon ya nuna cewa hanyar kallo kawai za ta iya kimanta ƙarfin cellulose ether kawai, hanyar juyawa ba ta dace da kimanta ƙarfin cellulose ether ba, hanyar vacuum na iya kimanta ƙarfin ether na cellulose kawai tare da ƙarfin da ke ƙasa 0.1 MPa, kuma Sabuwar ƙara tabbataccen matsa lamba Wannan hanya na iya ƙididdige ƙimar ƙarfin cellulose ether gel.

Mabuɗin kalmomi: jelly; cellulose ether gel; ƙarfi; hanya

0.Gabatarwa

Abubuwan sarrafa bayanan martaba na tushen jelly na polymer ana amfani da su sosai a cikin toshe ruwan mai da sarrafa bayanan martaba. Duk da haka, a cikin 'yan shekarun nan, da zafin jiki-m da thermally reversible gel cellulose ether plugging da kuma kula da tsarin ya zama a hankali a cikin bincike hotspot for ruwa toshe da kuma bayanin kula da profile a cikin nauyi man tafki. . Ƙarfin gel na ether cellulose yana ɗaya daga cikin mahimman alamomi don haɓakawa, amma babu daidaitattun daidaitattun hanyar gwajin ƙarfinsa. Hanyoyin da aka saba amfani da su don kimanta ƙarfin jelly, irin su hanyar kallo - hanyar kai tsaye da tattalin arziki don gwada ƙarfin jelly, yi amfani da teburin lambar ƙarfin jelly don yin hukunci da matakin ƙarfin gel da za a auna; Hanyar juyawa - kayan aikin da aka saba amfani da su sune Brookfield viscometer da rheometer, zazzabi na samfurin gwajin viscometer na Brookfield yana iyakance tsakanin 90°C; hanyar warwarewar nasara - lokacin da ake amfani da iska don karya ta gel, matsakaicin karatun ma'aunin matsa lamba yana wakiltar ƙarfin gel. Tsarin gelling na jelly shine don ƙara wakili mai haɗawa zuwa maganin polymer. Ana haɗa wakili mai haɗin giciye da sarkar polymer ta hanyar haɗin gwiwar sinadarai don samar da tsarin cibiyar sadarwa na sararin samaniya, kuma tsarin ruwa yana nannade shi, don haka tsarin gaba ɗaya ya rasa ruwa, sa'an nan kuma ya canza Ga jelly, wannan tsari ba zai iya jurewa ba. canjin sinadarai ne. Tsarin gel na cellulose ether shine cewa a ƙananan zafin jiki, macromolecules na cellulose ether suna kewaye da ƙananan kwayoyin ruwa ta hanyar haɗin hydrogen don samar da maganin ruwa. Yayin da yanayin zafi na bayani ya tashi, an lalata haɗin hydrogen, da kuma manyan kwayoyin halitta na cellulose ether Yanayin da kwayoyin halitta ke haɗuwa ta hanyar hulɗar ƙungiyoyin hydrophobic don samar da gel shine canjin jiki. Ko da yake tsarin gelation na biyu ya bambanta, bayyanar yana da irin wannan yanayi, wato, yanayin da ba shi da motsi a cikin sararin samaniya mai girma uku. Ko hanyar kimanta ƙarfin jelly ya dace don kimanta ƙarfin cellulose ether gel yana buƙatar bincike da tabbatarwa na gwaji. A cikin wannan takarda, ana amfani da hanyoyin gargajiya guda uku don kimanta ƙarfin cellulose ether gels: hanyar kallo, hanyar juyawa da hanyar vacuum mai nasara, kuma an kafa hanyar samun nasara mai kyau akan wannan tushe.

1. Bangaren gwaji

1.1 Babban kayan gwaji da kayan aiki

Electric m zafin jiki ruwan wanka, DZKW-S-6, Beijing Yongguangming Medical Instrument Co., Ltd .; high zafin jiki da kuma high matsa lamba rheometer, MARS-III, Jamus HAAKE kamfanin; Zagaya ruwa Multi-manufa injin famfo, SHB-III, Gongyi Red Instrument Equipment Co., Ltd .; firikwensin, DP1701-EL1D1G, Baoji Best Control Technology Co., Ltd .; tsarin samun matsa lamba, Shandong Zhongshi Dashiyi Technology Co., Ltd.; tube mai launi, 100 ml, Tianjin Tianke Glass Instrument Manufacturing Co., Ltd .; babban zafin jiki resistant kwalban gilashi, 120 ml, Schott Glass Works, Jamus; high-tsarki nitrogen, Tianjin Gaochuang Baolan Gas Co., Ltd.

1.2 Samfurori na gwaji da shirye-shirye

Hydroxypropyl methylcellulose ether, 60RT400, Taian Ruitai Cellulose Co., Ltd.; Narke 2g, 3g da 4g na hydroxypropylmethylcellulose ether a cikin 50 ml ruwan zafi a 80℃, motsawa sosai kuma ƙara 25℃na 50 ml ruwan sanyi, samfuran sun narkar da gaba ɗaya don samar da mafita na ether cellulose tare da adadin 0.02g/mL, 0.03g/mL da 0.04g/mL bi da bi.

1.3 Hanyar gwaji na gwajin ƙarfin ether gel cellulose

(1) An gwada ta hanyar lura. Ƙarfin kwalabe na gilashin da aka yi amfani da su a cikin babban zafin jiki mai fadi-baki da aka yi amfani da su a cikin gwaji shine 120ml, kuma ƙarar maganin ether cellulose shine 50mL. Sanya shirye-shiryen ether na cellulose da aka shirya tare da ƙima na 0.02g/ml, 0.03g/mL da 0.04g/mL a cikin kwalban gilashin mai zafin zafin jiki, juya shi a yanayin zafi daban-daban, kuma kwatanta abubuwan da ke sama daban-daban guda uku bisa ga lambar ƙarfin gel. An gwada ƙarfin gelling na cellulose ether aqueous bayani.

(2) An gwada ta hanyar juyawa. Na'urar gwajin da aka yi amfani da ita a cikin wannan gwaji shine mai zafi da zafi mai zafi. An zaɓi maganin ruwa na cellulose ether tare da maida hankali na 2% kuma an sanya shi a cikin ganga don gwaji. Adadin dumama shine 5℃/ 10 min, ƙimar shear shine 50 s-1, kuma lokacin gwaji shine 1 min. , Yanayin dumama shine 40～110℃.

(3) An gwada shi ta hanyar vacuum. Haɗa bututun mai launi masu ɗauke da gel, kunna famfo, kuma karanta matsakaicin karatun ma'aunin matsa lamba lokacin da iska ta karye ta cikin gel. Ana sarrafa kowane samfurin sau uku don samun matsakaicin ƙimar.

(4) Gwaji ta hanyar matsi mai kyau. Dangane da ka'idar hanyar samun digiri na ci gaba, mun inganta wannan hanyar gwaji kuma mun ɗauki hanyar ingantaccen matsi mai ƙarfi. Haɗa bututun launi mai launi waɗanda ke ɗauke da gel, kuma yi amfani da tsarin siyan matsa lamba don gwada ƙarfin gel ɗin ether cellulose. Adadin gel ɗin da aka yi amfani da shi a cikin gwajin shine 50mL, ƙarfin bututu mai launi shine 100mL, diamita na ciki shine 3cm, diamita na ciki na bututun madauwari da aka saka a cikin gel shine 1cm, zurfin shigarwa shine 3cm. A hankali kunna jujjuyawar silinda na nitrogen. Lokacin da bayanan matsa lamba da aka nuna ya faɗi ba zato ba tsammani kuma da ƙarfi, ɗauki matsayi mafi girma kamar ƙimar ƙarfin da ake buƙata don karya ta gel. Ana sarrafa kowane samfurin sau uku don samun matsakaicin ƙimar.

2. Sakamakon gwaji da tattaunawa

2.1 Yin amfani da hanyar lura don gwada ƙarfin gel na ether cellulose

A sakamakon yin la'akari da ƙarfin gel na cellulose ether ta hanyar lura, ɗaukar maganin ether cellulose tare da ƙaddamar da 0.02 g / ml a matsayin misali, ana iya sanin cewa ƙarfin ƙarfin shine A lokacin da zafin jiki ya kasance 65.°C, kuma ƙarfin yana fara ƙaruwa yayin da zafin jiki ya ƙaru, lokacin da zafin jiki ya kai 75℃, yana gabatar da yanayin gel, ƙarfin ƙarfin yana canzawa daga B zuwa D, kuma lokacin da zafin jiki ya tashi zuwa 120℃, Ƙarfin ƙarfin ya zama F. Ana iya ganin cewa sakamakon kimantawa na wannan hanyar kimantawa kawai yana nuna ƙarfin ƙarfin gel, amma ba zai iya amfani da bayanan don bayyana takamaiman ƙarfin gel ba, wato, yana da inganci amma ba. adadi. Amfanin wannan hanya shine cewa aikin yana da sauƙi kuma mai hankali, kuma gel tare da ƙarfin da ake buƙata za a iya yin la'akari da rahusa ta wannan hanya.

2.2 Aiwatar da hanyar juyawa don gwada ƙarfin gel na ether cellulose

Lokacin da maganin ya zafi zuwa 80°C, danko na maganin shine 61mPa·s, to danko yana ƙaruwa da sauri, kuma ya kai matsakaicin ƙimar 46 790 mPa·s ku 100°C, sannan ƙarfin yana raguwa. Wannan bai dace da abin da aka gani a baya ba cewa dankon hydroxypropyl methylcellulose ether aqueous bayani ya fara karuwa a 65.°C, kuma gels suna bayyana a kusan 75°C kuma ƙarfin yana ci gaba da ƙaruwa. Dalilin wannan sabon abu shine cewa gel ya karye saboda juyawa na rotor lokacin gwada ƙarfin gel na ether cellulose, yana haifar da bayanan da ba daidai ba na ƙarfin gel a yanayin zafi na gaba. Saboda haka, wannan hanya ba ta dace da kimanta ƙarfin cellulose ether gels ba.

2.3 Aiwatar da hanyar vacuum mai nasara don gwada ƙarfin gel na ether cellulose

Sakamakon gwaji na cellulose ether gel ƙarfi an kimanta ta hanyar vacuum mai nasara. Wannan hanyar ba ta haɗa da jujjuyawar rotor ba, don haka za a iya guje wa matsalar ɓarkewar ƙwayar cuta da kuma karyewar da ke haifar da jujjuyawar rotor. Daga sakamakon gwaje-gwaje na sama, ana iya ganin cewa wannan hanya na iya gwada ƙarfin gel. Lokacin da zafin jiki ya kai 100°C, ƙarfin gel ɗin ether cellulose tare da maida hankali na 4% ya fi 0.1 MPa (matsakaicin digiri), kuma ba za a iya auna ƙarfin fiye da 0.1 MPa ba. Ƙarfin gel, wato, iyakar iyakar ƙarfin gel ɗin da aka gwada ta wannan hanya shine 0.1 MPa. A cikin wannan gwaji, ƙarfin cellulose ether gel ya fi 0.1 MPa, don haka wannan hanya ba ta dace da kimanta ƙarfin cellulose ether gel ba.

2.4 Yin amfani da hanyar matsi mai kyau don gwada ƙarfin gel na ether cellulose

An yi amfani da hanyar matsa lamba mai kyau don kimanta sakamakon gwaji na cellulose ether gel ƙarfi. Ana iya ganin cewa wannan hanya na iya gwada ƙididdiga na gel tare da ƙarfin sama da 0.1 MPa. Tsarin sayan bayanan da aka yi amfani da shi a cikin gwajin ya sa sakamakon gwajin ya fi daidai fiye da bayanan karatun wucin gadi a cikin hanyar digiri.

3. Kammalawa

Ƙarfin gel na ether cellulose ya nuna haɓakar haɓaka gaba ɗaya tare da karuwar zafin jiki. Hanyar jujjuyawar da kuma hanyar vacuum mai nasara ba su dace da ƙayyadaddun ƙarfin cellulose ether gel ba. Hanyar kallo kawai za ta iya auna ƙarfin cellulose ether gel kawai, kuma sabuwar hanyar matsa lamba mai kyau na iya gwada ƙarfin cellulose ether gel.