Hydroxyethyl methyl cellulose (HEMC) yog dab tsi?

Hydroxyethyl methyl cellulose (HEMC) yog dab tsi?

 Hydroxyethyl methylcellulose(HEMC) tseem hu ua methylhydroxyethyl cellulose (MHEC). Nws yog ib qho dawb, greyish dawb, los yog yellowish dawb particle. Nws yog ib qho uas tsis yog ionic cellulose ether tau los ntawm kev ntxiv ethylene oxide rau methyl cellulose. Nws yog tsim los ntawm ntuj tsim dua tshiab polymers xws li ntoo sis plawv hniav los yog paj rwb, thiab HEMC yuav siv tau raws li ib tug high-efficiency dej retaining tus neeg saib xyuas, nplaum thiab zaj duab xis ua tus neeg saib xyuas, stabilizer, thiab lwm yam. Nws yog dav siv nyob rau hauv ntau yam kev siv, xws li roj. drilling, kev tsim kho thiab kev tsim kho, xim thiab txheej, tshuaj, thiab lwm yam.HEMCtuaj yeem hloov kho raws li cov neeg siv khoom xav tau, thiab tom qab hloov kho, nws tseem muaj kev tiv thaiv zoo rau sagging thiab kev ua haujlwm zoo. Xav sivHEMCrau kev lag luam? Thov hu rau tus neeg muag khoom ntseeg tau ntawmhydroxyethyl methyl cellulosekom tau txais kev lag luam zoo.

Cov yam ntxwv ntawm HEMC

HEMCmuaj ntau yam haujlwm. Lawv suav nrog:

1. Kev tshwm sim

 HEMCtuaj yeem yog dawb, lub teeb daj, daj dawb, lossis grey dawb.

2. Solubility

HEMCyog soluble hauv dej (txias los yog kub). Txawm tiasHEMCyog insoluble nyob rau hauv feem ntau cov organic solvents, nws yog soluble nyob rau hauv binary organic solvents thiab organic solvent dej systems.

Nws siab concentration nyob ntawm viscosity, thiab nws solubility txawv nrog viscosity. Qhov qis dua qhov viscosity, ntau dua solubility, thiab vice versa.

3. Kev ruaj ntseg ntawm pH

 HEMCNws ruaj khov nyob rau hauv thaj tsam ntawm 3.0-11.0 thiab nws cov viscosity yuav luag tsis cuam tshuam, tab sis ntau tshaj qhov no yuav txo nws cov viscosity.

4. Metabolism

 HEMCNws yog ib qho khoom siv tsis zoo uas tau siv dav hauv cov zaub mov thiab tshuaj vim nws tsis muaj peev xwm ua rau cov metabolism.

5. Kev ua haujlwm saum npoo av

Vim nws qhov chaw ua haujlwm ntawm cov dej hauv cov kua dej, nws tuaj yeem siv los ua cov khoom tawg, tiv thaiv, thiab emulsifier.

6. Cov kab mob fungal

Nyob rau hauv lub sij hawm ntev cia,HEMCmuaj zoo viscosity stability, yog li ntawd nws muaj zoo pwm kuj.

Nws lub peev xwm los tiv thaiv pwm yog siab dua li ntawm hydroxyethyl cellulose.

7. Kev tuav dej

 HEMCdhau los ua tus neeg saib xyuas dej zoo vim nws cov viscosity siab hauv cov tshuaj aqueous.

Nws lub peev xwm tuav dej ntau dua li ntawm methyl cellulose.

8. Cov ntsiab lus tshauv

Txoj kev npaj ntawmHEMCsiv cov dej kub ntxuav, ua rau cov hmoov tshauv tsawg heev.

9. Thermal conductive nplaum

Thaum lubHEMCcov tshuaj yog rhuab mus rau ib tug tej yam kub, nws transparency txo, tsim sediment thiab gel, tab sis yog hais tias nws yog txias, nws yuav rov qab mus rau lub qub lub xeev ntawm cov tshuaj.

Kev siv ntawmHEMC

 Hydroxyethylmethylcellulosetuaj yeem siv raws li:

Ø Adhesive Ø Tiv thaiv colloid Ø Thickener Ø Zaj duab xis ua tus neeg saib xyuas Emulsifier Lubricant Ø Tus neeg saib xyuas ncua

Muaj kev siv ntawmHEMC

 HEMCyog dav siv hauv kev lag luam hauv qab no:

· Aggregation · Ceramics · Cosmetic · Kev Tsim Kho · Khoom noj khoom haus thiab dej haus · Tshuaj · Xim thiab Txheej · Ink thiab roj drilling

Raws li tau hais ua ntej,hydroxyethyl methylcellulose (HEMC) yog derivative ntawm methylcellulose. Nws yog non-ionic cellulose ether ua los ntawm high-purity paj rwb raw cov ntaub ntawv.HEMC's dej tuav thiab thickening muaj peev xwm ua rau nws haum rau dej-raws li latex xim, inks thiab petroleum drilling, tsev cov ntaub ntawv, thiab lwm yam. Vim nws dav siv nyob rau hauv ntau yam kev siv, tau txaisHEMClos ntawm cov neeg lag luam paub zoo ntawm hydroxyethyl methyl cellulose tuaj yeem xyuas kom koj tau txais cov khoom tsim nyog rau kev siv tus kheej lossis kev lag luam.