Menene rabon cellulose na HPMC Hydroxypropyl methyl da siminti?
Turmi mai hana ruwa shiga injiniya, halayensa sun dogara ne akan nauyin kayan da aka yi: Siminti 30-340, foda tubalin ginin injiniya 40-50, zare mai lignin 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, foda silicon carbide 40-45, foda calcium hydroxide 10-20, foda corundum mai launin ruwan kasa 10-12, busasshen foda na babban birni 30-35, ƙasan birnin Datong 40-45, aluminum sulfate 4-6, sitacin tushe na carboxymethyl 20-24, kayan da aka gyara nanotechnology foda carbon 4-6, ruwa 600-650; Turmi mai hana ruwa shiga injiniyan wannan samfurin yana da ƙarfi mai hana zafi shiga, kyakkyawan juriya ga wuta, haɗin gwiwa mai ƙarfi tare da bango, ƙarfin matsi, aikin tensile, kyakkyawan juriya ga tsufa, kyakkyawan kariya ga muhalli, kyakkyawan juriya ga danshi, juriya ga fashewa, hana faɗuwa. A yau za mu yi magana game da danko na maganin ruwa na hydroxypropyl methyl cellulose duk a cikin waɗanne fannoni ne? Bari mu yi nazarinsa a zahiri.
1. Nauyin kwayoyin halitta, zafin ruwan da ke cikinsa, saurin yankewa da kuma hanyar gwaji ta amfani da cellulose ether; 2. Mafi girman zafin canjin gilashi, mafi girman nauyin kwayoyin halitta, haka nan kuma dankowar maganin ya fi girma; 3. Mafi girman abun ciki na cellulose ether, haka nan kuma dankowar maganin, don haka a cikin aiwatar da aikace-aikacen ya kamata mu kula da adadin da ya dace na hadewa, hana hadewa ya yi yawa, kuma ya shafi halayen turmi na siminti da siminti kai tsaye; 4. Kamar yawancin maganin, dankowar zai kuma ragu tare da karuwar zafin jiki, tare da mafi girman abun ciki na cellulose ether, mafi girman illar zafin jiki; Bugu da ƙari, ainihin tasirin kauri kuma ya bambanta dangane da adadin ruwan da ake amfani da shi don simintin epoxy.
Dankowar ruwan da ke cikin ruwa na Hydroxypropyl methyl cellulose shima zai iya zama babbar hanyar haɗi don yin tsokaci kan halayen cellulose ether, yayin da yawan dankowar ruwan da ke cikin ruwa ya fi yawa, kauri na kayan siminti na epoxy ya fi kyau, a bayan farantin, amma idan dankowar ta yi yawa, za ta cutar da albarkatun simintin epoxy nan take da kuma iya aiwatar da ita. Dangane da wasu turmi masu daidaita kansu tare da yawan ruwa, za a ƙayyade dankowar cellulose ether ya zama ƙasa.
Maganin ruwa na cellulose ether jiki ne mai kama da pseudoplastic, mu a matakin ƙarshe na gano ƙimar yankewa ya fi girma, ɗanko ya fi ƙanƙanta.
Saboda haka, a taƙaice dai: haɗin turmi na siminti zai ragu ta hanyar ƙarfin waje, wanda ke da amfani ga ginin injiniya a baya, amma maganin ruwa mai ɗauke da cellulose ether idan akwai ƙarancin ƙimar taro, zai faru da halayen ruwa mara Newtonian, akasin haka, lokacin da aka ƙara ƙimar taro, maganin ruwa zai faru da halayen ruwa mai kama da na pseudoplastic.
Rike ruwa daga hydroxypropyl methyl cellulose yana ɗaya daga cikin mahimman halayen hydroxypropyl methyl cellulose. Yawan fitar da ruwa a cikin turmi da samfuran da aka yi da siminti yana shafar zafin iskar gas, zafin jiki da kuma matsin lamba. Saboda haka, a cikin yanayi daban-daban, tare da hydroxypropyl methyl cellulose, adadin ingancin ruwa iri ɗaya yana da wasu bambance-bambance.
Gabaɗaya, yawan danko na hydroxypropyl methyl cellulose, mafi kyawun tasirin riƙe ruwa zai yi, amma illar da danko ke yi wa riƙe ruwa zai ragu bayan danko ya wuce 100,000 Mpa. s. Idan danko na HYDROXYpropyl methyl cellulose ya wuce 100,000, ana iya inganta yawan riƙe ruwa sosai ta hanyar ƙara yawan hydroxypropyl methyl cellulose.
A cikin cikakken tsarin gini, ana iya daidaita tasirin riƙe ruwa na slurry ta hanyar daidaita adadin hydroxypropyl methyl cellulose. Samfuran jerin cellulose na Hydroxypropyl methyl na iya magance matsalar riƙe ruwa yadda ya kamata a ƙarƙashin yanayin zafi mai ci gaba. A cikin yanayin zafi mai ci gaba, musamman a wuraren zafi da ban sha'awa da kuma gina chromatography a gefen rana, ana buƙatar HYDROXYpropyl methyl cellulose mai inganci don haɓaka riƙe ruwa na slurry.
Ingancin hydroxypropyl methyl cellulose, yana da kyakkyawan daidaito, ƙungiyoyin aiki na tertiary butyl da hydroxypropyl oxygen tare da tsarin haɗin gwiwa na fiber molecular sarkar, yana iya haɓaka ƙungiyar methyl aldehyde da oxygen, da ingancin ruwa na nau'in dijital covalent bonds na iya, zama ruwa da ruwa na watsawa, sannan kuma ya sarrafa yanayin zafi mai yawa wanda ya haifar da ƙafewar ruwa, riƙe ruwa mai yawa.
Ingancin hydroxypropyl methyl cellulose na iya dacewa da ƙasa mai laushi da kasuwanci a cikin samfuran turmi da filastik gauraye, kuma duk ƙwayoyin da ke da tauri suna danshi, sanyi, kuma suna samar da wani Layer na fim, danshi a cikin matsakaici na dogon lokaci yana fitowa a hankali daga tushe, tare da fara haɗakar mahaɗan halitta na amsawar ruwa, sannan ya tabbatar da daidaiton ƙarfin matsi da ƙarfin tururi. Saboda haka, a cikin tsarin ginin bazara mai zafi mai ƙarfi, don isa ga tasirin ruwa, ya kamata ya kasance daidai da girke-girke na wani adadin da ingancin samfuran hydroxypropyl methyl cellulose, in ba haka ba, zai nuna gundura da sauri kuma yana haifar da ƙarancin ruwa, rage ƙarfin matsi, tsagewa, popped halaye kamar metope babu komai da shakku, kuma tare da haɗin gwiwar wahalar ginin ma'aikata. Yayin da zafin jiki ke raguwa, ana iya rage adadin hydroxypropyl methyl cellulose a hankali kuma ana iya cimma tasirin riƙe ruwa iri ɗaya.
Idan ba a ƙara cellulose ether ba, tsarin chromatography na sabon turmi na siminti zai bushe da sauri, yana sa siminti ba zai iya samun ruwa ta hanyar da ta dace ba, wanda hakan zai sa turmi na siminti ba zai yi tauri ba kuma ya sami mannewa mafi kyau. A lokaci guda, ƙara cellulose ether yana sa turmi na siminti ya sami kyakkyawan sassauci da sassauci, kuma yana inganta ƙarfin matse turmi na siminti.
1, girman barbashi na hydroxypropyl methyl cellulose
Girman barbashi na cellulose ether yana cutar da narkewar sa. Mafi ƙarancin cellulose ether shine, saurin ruɓewar sa a cikin ruwa da kuma girman halayen riƙe ruwa. Saboda haka, ya kamata a haɗa girman barbashi na cellulose ether a cikin binciken ɗaya daga cikin halayensa. Gabaɗaya, girman barbashi na cellulose ether na raga 80 bisa ga.
2, hydroxypropyl methyl cellulose busasshe ba tare da ƙimar nauyi ba
Busasshen manic ba tare da nauyi ba, yana nufin wani zafin jiki na busasshen manic cellulose ether, asarar ingancin sinadarai ya zama kashi na asali na ingancin samfurin. Ga wani takamaiman ingancin cellulose ether a cikin busasshen ba tare da nauyi ba, ƙimar nauyi ta yi yawa, zai rage abubuwan da suka dace a cikin cellulose ether, zai cutar da ainihin tasirin amfani da kamfanonin da ke ƙasa, amma kuma yana inganta farashin siye. Yawanci busasshen cellulose ether ba tare da nauyi ba zai wuce kashi 5.0%.
3, hydroxypropyl methyl cellulose potassium thiocyanate ash
Domin wani ingancin cellulose ether a cikin toka abun ciki ya yi yawa, zai rage cellulose ether a cikin abubuwan da suka dace, zai cutar da ainihin tasirin amfani da kamfanonin da ke ƙasa, cellulose ether potassium thiocyanate ash abun ciki shine babban abin la'akari da ƙimar halayensa.
4, dankowar cellulose hydroxypropyl methyl
Rike ruwa da kuma tasirin kauri na Hydroxypropyl methyl cellulose shine mabuɗin ƙara cellulose ether na turmi na siminti a cikin ɗanko da kuma haɗa shi.
5, ƙimar PH ta hydroxypropyl methyl cellulose
Dankowar samfuran hydroxypropyl methyl cellulose yana raguwa a hankali a yanayin zafi mafi girma ko bayan ajiya na dogon lokaci, musamman ga samfuran ɗigon danko mai yawa, don haka dole ne a iyakance ƙimar pH. Gabaɗaya an tsara cewa ya kamata a yi amfani da nau'in ƙimar PH na cellulose ether a matsayin 5-9.
6. Yaɗuwar hydroxypropyl methyl cellulose
Amfani da rashin amfani da sinadarin hydroxypropyl methyl cellulose na iya shafar ainihin tasirin amfani da shi a cikin kayan gini. Babban abubuwan da ke cutar da watsa sinadarin cellulose ether sune
1) ingancin kayan aiki; (2) ainihin tasirin deashing; (3) Shirye-shiryen fasahar sarrafawa; (4) shirye-shiryen sinadarai na halitta; (5) Ainihin tasirin zhongghe.
Dangane da ainihin tasirin aikace-aikacen, watsawar cellulose ether bai kamata ya zama ƙasa da 80% ba.
7, ana zargin cewa hydroxypropyl methyl cellulose yana da zafin jiki
Cellulose na Hydroxypropyl methyla cikin sassan siminti a matsayin mabuɗin ƙara mannewa, danko da wakilin riƙe ruwa, don haka danko da zafin gel shine babban ƙimar ma'aunin hydroxypropyl methyl cellulose. Ana amfani da zafin don tantance nau'in da ƙayyadaddun ƙwayoyin cellulose ether, kuma matakin maye gurbin cellulose ether yana da alaƙa.
8. Bugu da ƙari, gishiri da ragowar za su kuma cutar da zafin manne. Idan zafin ruwan ya tashi, sinadarin fiber polymer a hankali yana rasa ruwa, kuma dankowar ruwan yana raguwa. Idan aka isa wurin mannewa, polymer ɗin ya bushe gaba ɗaya kuma mannewar ta fito. Saboda haka, zafin aiki na sassan siminti yawanci yana ƙasa da zafin manne na asali. A ƙarƙashin wannan ƙa'ida, ƙarancin zafin jiki, mafi girman dankowa, kuma mafi girman tasirin viscosification da riƙe ruwa.
Lokacin Saƙo: Afrilu-25-2024