Introduktion til Hydroxypropyl Methyl Cellulose HPMC 400 4000 6000 40000 60000 80000 100000 150000 200000

Hydroxypropylmethylcellulose (HPMC), hvis kinesiske navn er hydroxypropylmethylcellulose, er en semisyntetisk, ikke-ionisk celluloseether opnået ved kemisk modificering af naturlig cellulose. Dette hvide pulver kan danne en gennemsigtig viskøs opløsning efter opløsning i vand. Den har fremragende fortykkelse, vandophobning, stabilitet og filmdannende egenskaber. Det er et uundværligt multifunktionelt additiv inden for mange områder, såsom byggeri.

Karakteristika og fordele ved Hydroxypropyl Methyl Cellulose HPMC 400 4000 6000 40000 60000 80000 100000 150000 200000

Fremragende vandopløselighed: Det kan hurtigt opløses i koldt vand for at danne en klar og stabil opløsning.

Effektiv fortykkelse og vandretentionsevne: Forøg materialets viskositet, reducerer effektivt vandfordampningen, og forbedre arbejdseffektiviteten.

God stabilitet: Det har god stabilitet over for syrer, alkalier, og salte, og er velegnet til en lang række pH-værdier.

Filmdannende og beskyttende effekter: Efter tørring, det danner en sej og gennemsigtig film for at beskytte underlaget og forhindre vandindtrængning og fordampning.

Ikke-giftig og ikke-irriterende: Det har god biokompatibilitet og er velegnet til medicin og fødevarer.

Justerbarhed: Ved at ændre graden af ​​substitution og molekylvægt, dens ydeevne kan justeres for at opfylde forskellige applikationskrav.

Specifikationer for Hydroxypropyl Methyl Cellulose HPMC 400 4000 6000 40000 60000 80000 100000 150000 200000

Hydroxypropylmethylcellulose (HPMC)– Produktspecifikationer

Oversigt

Hydroxypropylmethylcellulose (HPMC) is a white or beige powder. It dissolves in cold water to form a clear, viskøs mulighed. HPMC is extensively used in building, lægemidler, mad, and cosmetics due to its excellent thickening, bindende, filmdannende, and water-retention buildings.

Viskositetsgrader

HPMC is available in several viscosity grades. Each grade is named by its approximate thickness in millipascal-seconds (mPa · s) at a 2% koncentration i vand kl 20 °C. Common qualities consist of:
HPMC 400, HPMC 4000, HPMC 6000, HPMC 40000, HPMC 60000, HPMC 80000, HPMC 100000, HPMC 150000, og HPMC 200000.

Lower-viscosity qualities like HPMC 400 og 4000 are excellent for applications needing simple circulation and quick dissolution. Tool qualities such as HPMC 6000 til 60000 offer well balanced performance for floor tile adhesives and plasters. High-viscosity types like HPMC 80000 ved 200000 supply strong water retention and enlarging, suitable for self-leveling compounds and specialized mortars.

hemmelige boliger

– Udseende : Fritflydende pulver, white to beige
– pH (2% valgmulighed) : 4.0– 8.0.
– Fugt webindhold : ≤ 5%.
– Aske webindhold : ≤ 5%.
– Gel temperatur : 58– 64 °C.
– Alternative : Methoxyl 19– 30%, Hydroxypropyl 4– 12%.

Opbevaringsplads & Håndtering

Køb HPMC på en fantastisk måde, helt tørt sted langt fra fugt. Keep containers firmly closed. Prevent exposure to high moisture to prevent clumping. Usage common industrial health practices when managing the powder.

Anvendelser af Hydroxypropyl Methyl Cellulose HPMC 400 4000 6000 40000 60000 80000 100000 150000 200000

Anvendelser af hydroxypropylmethylcellulose (HPMC)

Versatile Grades for Diverse Demands

Hydroxypropylmethylcellulose, eller HPMC, can be found in many viscosity qualities– som f.eks 400, 4000, 6000, 40000, 60000, 80000, 100000, 150000, og 200000. Each grade serves a specific purpose based upon its thickness and efficiency in water.

Low-viscosity qualities like HPMC 400 and HPMC 4000 mix easily into liquids. They function well in floor tile adhesives, selvnivellerende forbindelser, og tørblandede mørtler. These grades help regulate water retention so seal collections appropriately.

Medium grades such as HPMC 6000 and HPMC 40000 are common in outside insulation systems and plaster. They offer great workability and quit drooping on vertical surface areas. Home builders depend on them for smooth application and strong attachment.

High-viscosity types– consisting of HPMC 60000 , 80000 , 100000 , 150000 , og 200000 — are thick and steady. They are utilized where long open time and high water retention issue the majority of. Instances consist of thick-bed renders, reparationsservicemørtler, and specialized grouts. These grades keep the mix wet much longer, which helps healing in hot or dry conditions.

Effektivitet, du kan stole på

HPMC boosts consistency across all construction products. It avoids separation of ingredients and makes mixing less complicated. The item likewise minimizes dust during handling and boosts pumpability.

In addition to construction, some HPMC qualities sustain pharmaceutical and food usages. Yet in structure applications, the focus stays on stamina, bearbejdelighed, and dependability.

Different projects require various thickness. Selecting the appropriate HPMC grade makes sure much better results– whether you’re laying floor tiles, finish walls, or fixing concrete. Constantly match the quality to your mix style and job conditions.

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5 Ofte stillede spørgsmål om Hydroxypropyl Methyl Cellulose HPMC 400 4000 6000 40000 60000 80000 100000 150000 200000

Frequently Asked Questions About HPMC Grades

What is HPMC and why are there so many grades?

HPMC står for Hydroxypropyl Methyl Cellulose. It is a water-soluble polymer made from plant cellulose. Different grades—like 400, 4000, 6000, up to 200000—refer to viscosity levels. Higher numbers mean thicker solutions when mixed with water. Each grade suits specific uses based on how thick or thin the final product needs to be.

Which HPMC grade works best in construction materials?

Grades such as 40000, 60000, og 100000 are common in tile adhesives, gengiver, og plastre. They give good workability, vandophobning, og åben tid. Lower grades like 400 eller 6000 are too thin for these jobs. High-viscosity HPMC helps keep water in the mix so cement can cure properly.

Can I use high-viscosity HPMC in food or pharmaceuticals?

Ja, men kun hvis den opfylder fødevarekvalitets- eller pharma-standarder. Viscosity matters less than purity here. Grades like 400 eller 4000 are often used in tablets or sauces because they dissolve quickly and feel smooth. Always check the product’s certification before using it in consumables.

How does viscosity affect performance?

Viscosity controls thickness and flow. Lavviskositet HPMC (f.eks., 400–6000) spreads easily and mixes fast. High-viscosity types (f.eks., 150000–200000) create gels that hold shape and slow down water loss. Pick the right viscosity based on whether you need fluidity or stability.

Er HPMC sikker at håndtere?

HPMC er ikke-giftigt og biologisk nedbrydeligt. Det irriterer ikke huden ved normal brug. Stadig, wear gloves and a mask when handling fine powders to avoid breathing dust. Store it in a dry place—it absorbs moisture from the air and may clump.