Heerka dhismaha MHEC

Heerka dhismaha MHEC

Heerka dhismaha MHEC Methyl HydroxyethylCellulosewaa budo cad oo aan ur lahayn, aan dhadhan lahayn, oo aan sun ahayn oo lagu milmi karo biyo qabow si loo sameeyo xal hufan oo fiiqan. Waxay leedahay astaamaha dhumucda, isku xidhka, kala firdhinta, emulsification, sameynta filimka, joojinta, nuugista, jelitaanka, dhaqdhaqaaqa dusha sare, haynta qoyaanka iyo colloid ilaalin ah. Maadaama xalka biyaha uu leeyahay shaqo firfircoon oo dusha sare ah, waxaa loo isticmaali karaa sidii wakiil ilaalin colloidal ah, emulsifier iyo firdhiye. Xalka biyaha ee MHEC methyl Hydroxyethylcellulose ee heerka dhismaha wuxuu leeyahay hydrophilicity wanaagsan waana wakiil haynta biyaha oo hufan. Hydroxyethyl methyl cellulose wuxuu ka kooban yahay kooxo hydroxyethyl ah, sidaas darteed wuxuu leeyahay awood wanaagsan oo ka hortagga caaryada, xasilloonida viscosity wanaagsan iyo ka hortagga caariyaysiga inta lagu jiro kaydinta muddada dheer.

Sifooyinka jirka iyo kiimikada:

Muuqaalka: MHEC waa budo cad ama ku dhawaad ​​​​cad oo fiiqan ama granular ah; ur la'aan.

Milmida: MHEC waxay ku milmi kartaa biyo qabow iyo biyo kulul, qaabka L wuxuu ku milmi karaa oo keliya biyo qabow, MHEC kuma milmi karo inta badan dareerayaasha dabiiciga ah. Ka dib daaweynta dusha sare, MHEC waxay ku faaftaa biyo qabow iyada oo aan la isku darin, waxayna si tartiib ah u milmi kartaa, laakiin si dhakhso ah ayaa loo milmi karaa iyadoo la hagaajinayo qiimaha PH ee 8~10.

Xasiloonida PH: Dheef-dhalashada wax yar ayay iska beddeshaa inta u dhaxaysa 2 ~ 12, dheef-dhalashadana way hoos u dhacdaa marka laga reebo xadkan.

Heerka Guduudan: Heerka Gudubka 40 ee shabaq ≥99% Heerka Gudubka 80 ee shabaq 100%.

Cufnaanta muuqata: 0.30-0.60g/cm3.

Darajooyinka Badeecadaha

Codsiga 

MHEC methyl Hydroxyethyl cellulose oo ah nooca dhismaha waxaa loo isticmaali karaa sidii kolloid ilaalin ah, emulsifier iyo firdhiye sababtoo ah shaqadiisa firfircoon ee dusha sare ee xalka biyaha. Tusaalooyinka isticmaalkeeda waa kuwan soo socda:

1. Saamaynta methylhydroxyethylcellulose ay ku leedahay waxqabadka sibidhka. MHEC methylHydroxyethylcellulose heerka dhismaha waa budo cad oo aan ur lahayn, dhadhan lahayn, oo aan sun ahayn oo lagu milmi karo biyo qabow si loo sameeyo xal hufan oo fiiqan. Waxay leedahay astaamaha dhumucda, isku xidhka, kala firdhinta, emulsification, sameynta filimka, joojinta, nuugista, jelitaanka, dhaqdhaqaaqa dusha sare, haynta qoyaanka iyo colloid ilaalin ah. Maadaama xalka biyaha uu leeyahay shaqo firfircoon oo dusha sare ah, waxaa loo isticmaali karaa sidii colloid ilaalin ah, emulsifier iyo kala firdhiye. Xalka biyaha ee MHEC methyl Hydroxyethyl cellulose heerka dhismaha wuxuu leeyahay hydrophilicity wanaagsan waana wakiil haynta biyaha oo hufan.
2. Diyaari rinji gargaar leh oo dabacsanaan sare leh, kaas oo laga sameeyay qaybaha soo socda iyadoo loo eegayo miisaanka alaabta ceeriin: 150-200g oo biyo ah oo la miiray; 60-70g oo ah emulsion acrylic saafi ah; 550-650g oo ah kaalshiyam culus; 70-90g oo talc ah; 30-40g oo ah xal biyood oo methyl cellulose ah; 10-20g oo ah xal biyood oo lignocellulose ah; 4-6g oo ah qalabka sameeya filimada; 1.5-2.5g oo ah jeermis dile fungicides ah; 1.8-2.2g oo ah kala firdhiye; 1.8-2.2g oo ah wakiilka qoynta; Dhumuceeye 3.5-4.5g; ethylene glycol 9-11g; Xal biyood oo MHEC heerka dhismaha ah waxa laga sameeyay 2-4% MHEC heerka dhismaha ah oo lagu milmay biyaha;Faybarka cellulosexalka biyaha waxaa laga sameeyay 1 -3%Faybarka cellulosewaxaa lagu sameeyaa iyadoo lagu milmo biyo.

Sida loo soo saaroHeerka dhismaha MHEC?

Thewax soo saarHabka loo isticmaalo MHEC methyl hydroxyethyl cellulose heerka dhismaha ayaa ah in suuf la safeeyey loo isticmaalo sidii walxo ceeriin ah iyo ethylene oxide loo isticmaalo sidii wakiil etherifying si loo diyaariyo MHEC heerka dhismaha. Qalabka ceeriin ee loogu talagalay diyaarinta MHEC heerka dhismaha waxaa lagu diyaariyaa qaybo miisaan ahaan: 700-800 qaybood oo ah isku darka toluene iyo isopropanol sida dareeraha, 30-40 qaybood oo biyo ah, 70-80 qaybood oo sodium hydroxide ah, 80-85 qaybood oo suuf la safeeyey ah, giraan 20-28 qaybood oo oxythane ah, 80-90 qaybood oo methyl chloride ah, 16-19 qaybood oo glacial acetic acid ah; tallaabooyinka gaarka ah waa sida soo socota:

Tallaabada ugu horreysa, ku dar isku darka toluene iyo isopropanol, biyo, iyo sodium hydroxide digsiga falcelinta, heerkulka kor u qaad ilaa 60-80°C, oo hayso 20-40 daqiiqo;

Tallaabada labaad, alkalization: qabooji agabka kor ku xusan ilaa 30-50°C, ku dar suuf la safeeyey, ku buufi isku darka toluene iyo isopropanol, u daadgureyso ilaa 0.006Mpa, ku buuxi nitrogen 3 beddel, oo samee alkali ka dib beddelka. Shuruudaha alkalization waa sida soo socota: waqtiga alkalization waa 2 saacadood, heerkulka alkalization-kuna waa 30°C.-50℃;

Tallaabada saddexaad, etherification: ka dib alkalization, fal-galiyaha ayaa loo daadgureeyay 0.05～0.07MPa, ethylene oxide iyo methyl chloride ayaa lagu daraa oo la hayaa 30 darajo.～50 daqiiqo; marxaladda koowaad ee etherification: 40～60℃, 1.0～2.0 Saacadood, cadaadiska waxaa la xakameeyaa inta u dhaxaysa 0.15-0.3Mpa; marxaladda labaad ee etherification: 60～90℃, 2.0～2.5 saacadood, cadaadiska waxaa la xakameeyaa inta u dhaxaysa 0.4-0.8Mpa;

Tallaabada afraad, dhexdhexaadin: ku dar aashitada glacial acetic acid ee la cabbiray ka hor inta aan la gelin dareeraha, ku cadaadi walaxda etherified si loo dhexdhexaadiyo, heerkulka kor u qaad ilaa 75～80℃ si loo kala furfuro biyaha, heerkulku wuxuu gaari doonaa 102℃, qiimaha pH-na wuxuu noqon doonaa 68. Marka la dhammeeyo kala furfurka biyaha; ku buuxi digsiga kala furfurka biyaha tuubada oo lagu daweeyay qalabka dib u soo celinta osmosis 90℃.～100℃;

Tallaabada shanaad, dhaqidda centrifugal: agabka tallaabada afraad waxaa centrifuge-ka ku shubaya boolal jiif ah, agabka la kala saarayna waxaa loo wareejinayaa digsi lagu dhaqo oo lagu shubay biyo kulul ka hor si loogu dhaqo agabka;

Tallaabada lixaad, qalajinta centrifugal: walxaha la dhaqay waxaa loo qaadaa qalajiyaha iyada oo loo marayo centrifuge boolal ah oo toosan, walxaha waxaa lagu qalajiyaa heerkul ah 150-170°C, walxaha la qalajiyeyna waa la burburiyaa oo la baakadeeyaa.

Marka la barbar dhigo tiknoolajiyada wax soo saarka ee cellulose ether ee hadda jirta, hadda jirtahabka wax soo saarkaWaxay isticmaashaa ethylene oxide oo ah wakiilka etherifying si ay u diyaariso MHEC methyl hydroxyethyl cellulose oo ah heerka dhismaha, maadaama ay ka kooban tahay kooxo hydroxyethyl ah, waxay leedahay awood antifungal oo wanaagsan. Xasillooni wanaagsan iyo iska caabin caariyaysi inta lagu jiro kaydinta muddada dheer. Waxay beddeli kartaa ethers-ka kale ee cellulose.

Bheerka uilding MHECwaa cellulose ether derivatives,Cellulose ether waa walax kiimiko ah oo polymer ah oo leh isticmaalyo badan oo laga sameeyay polymer cellulose dabiici ah iyada oo loo marayo daaweyn kiimiko ah. Tan iyo markii cellulose nitrate iyo cellulose acetate la sameeyay qarnigii 19-aad, farmashiistayaashu waxay soo saareen taxane badan oo ah noocyada cellulose ee cellulose ethers. Goobaha cusub ee codsiyada ayaa si joogto ah loo ogaanayaa waxaana ku lug leh qaybo badan oo warshadeed. Badeecadaha Cellulose ether sida sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl hydroxyethyl cellulose (MHEC) Iyo methyl hydroxypropyl cellulose (MHPC) iyo cellulose ethers kale waxaa loo yaqaan "industrial monosodium glutamate" MHEC-na heerka dhismaha ayaa si weyn loogu isticmaalay dhejiska taayilada, hoobiye qalalan, sibidhka iyo gypsum plasters iwm.

Baakadaha:

Bacaha warqadda ah ee 25kg oo gudaha ku jira oo leh bacaha PE.

20'FCL: 12Tan oo leh palletized, 13.5Tan oo aan lahayn palletized.

40'FCL: 24Tan oo leh palletized, 28Tan oo aan lahayn palletized.