Uvod u hidroksipropil metil celulozu HPMC

Hidroksipropil metilceluloza (HPMC), čiji je kineski naziv hidroksipropil metilceluloza, je polusintetika, nejonski eter celuloze dobijen hemijskom modifikacijom prirodne celuloze. Ovaj bijeli prah može formirati prozirnu viskoznu otopinu nakon rastvaranja u vodi. Ima odlično zgušnjavanje, zadržavanje vode, stabilnost i svojstva stvaranja filma. To je nezamjenjiv multifunkcionalni aditiv u mnogim poljima kao što je građevinarstvo.

Karakteristike i prednosti hidroksipropil metil celuloze HPMC

Odlična rastvorljivost u vodi: Može se brzo otopiti u hladnoj vodi kako bi se formirala bistra i stabilna otopina.

Efikasno zgušnjavanje i sposobnost zadržavanja vode: Povećajte viskozitet materijala, efikasno smanjuju isparavanje vode, i poboljšati radnu efikasnost.

Dobra stabilnost: Ima dobru stabilnost na kiseline, alkalije, i soli, i pogodan je za širok raspon pH vrijednosti.

Filmotvorni i zaštitni efekti: Nakon sušenja, formira čvrst i proziran film koji štiti podlogu i sprečava prodiranje vode i isparavanje.

Netoksičan i neiritantan: Ima dobru biokompatibilnost i pogodan je za područja medicine i hrane.

Prilagodljivost: Promjenom stepena supstitucije i molekularne težine, njegove performanse se mogu prilagoditi kako bi zadovoljile različite zahtjeve primjene.

Specifikacije HPMC hidroksipropil metil celuloze

Hidroksipropil metil celuloza (HPMC) Zahtjevi

Izgled i fizička vrsta

HPMC appears as a white or somewhat off-white, slobodno teče prah. It has no noticeable odor and feels smooth to the touch. The powder does not clump under normal storage space problems.

Rastvorljivost

HPMC liquifies easily in chilly water to create a clear, gusti rastvor. Ne otapa se u vrućoj vodi, alkohol, or most organic solvents. When mixed with cool water, it swells initially and afterwards gradually liquifies without developing swellings if effectively spread.

Viskoznost

Thickness varies based on grade. Usual viscosity arrays include 5 mPa · s do 100,000 mPa · s at a 2% fokus i 20 °C. Each set is tested to guarantee it meets the stated thickness variety. Higher viscosity qualities give thicker remedies and far better film-forming capability.

Alternative Levels

HPMC contains 2 crucial substituents: methoxy and hydroxypropoxy groups. Common methoxy web content ranges from 19% to 30%. Hydroxypropoxy content generally falls in between 4% i 12%. These worths figure out how the item behaves in various applications.

pH vrijednost

A 2% liquid solution of HPMC has a pH in between 5.0 i 8.0. This neutral-to-slightly-alkaline variety makes it suitable with many other active ingredients made use of in building, farmaceutski proizvodi, i hranu.

Sadržaj vlage

The dampness degree in HPMC is maintained below 5% po težini. Low dampness makes sure good flowability and long service life when stored in a completely dry area.

Sadržaj pepela

After incineration, the residue (pepeo) stays listed below 5%. This suggests high pureness and marginal not natural impurities.

Fragment Dimension

Most HPMC powders travel through a 40-mesh filter. Great grades might go through an 80-mesh or 100-mesh screen for smoother dispersion in sensitive applications.

Imajte na umu: All specs undergo variant based on production standards and customer requirements. Constantly describe the certification of analysis for the specific batch being used.

Primjena HPMC hidroksipropil metil celuloze

Primjena hidroksipropil metil celuloze (HPMC)

Građevinski materijali

HPMC plays an essential duty in modern-day structure products. Dodaje se malterima na bazi cementa, ljepila za pločice, i samorazlivajuće smjese. The substance boosts workability by making the mix much easier to spread out. It likewise aids maintain water, which permits concrete to heal effectively. Bez dovoljno zadržavanja vode, the end product may fracture or shed toughness. HPMC also stops drooping when products are used on vertical surface areas.

Pharmaceuticals

U medicini, HPMC acts as a secure and reliable ingredient. It is typically used in tablets as a binder or covering representative. The product manages how quickly a medication dissolves in the body. This guarantees the medication works at the right time and area. HPMC is also located in eye declines. Tamo, it functions as a lubricant to alleviate dry skin and irritability. Since it is non-toxic and biocompatible, it fulfills strict health criteria.

Food Market

HPMC is authorized for usage in numerous foodstuff. Djeluje kao zgušnjivač, stabilizator, ili emulgator. Možete ga pronaći u umacima, baked items, i niske masnoće. It provides foods a smooth structure without changing their preference. HPMC likewise helps keep active ingredients combined equally, so items stay regular from set to set.

Personal Treatment and Cosmetics

Several lotions, šamponi, and creams contain HPMC. It offers these items a rich, creamy feeling. The compound additionally assists put on hold particles like exfoliants or pigments. This maintains the formula secure in time. Povrh toga, HPMC develops a light film on the skin or hair, which adds moisture and defense.

Various other Utilizes

Izvan ovih lokacija, HPMC appears in paints, ljepila, i poljoprivredne hemikalije. It improves efficiency by improving thickness, prilog, and shelf life. Its adaptability makes it a trusted additive throughout numerous sectors.

Profil kompanije

Mi smo globalni lider u lakom betonu i naprednim rješenjima od pjene. Globalno poznat po svojoj posvećenosti istraživanju, inovacija, i primenjenu ekspertizu, nudimo konstruirana rješenja pjene od početka 2012. godine.

Možemo isporučiti visokokvalitetne dodatke za beton i proizvode povezane s pjenastim betonom širom svijeta.

Kompanija ima stručno tehničko odjeljenje i odjel za nadzor kvaliteta, dobro opremljenu laboratoriju, i opremljen naprednom opremom za testiranje i servisnim centrom nakon prodaje.

Ako ste zainteresovani, slobodno nas kontaktirajte.

Plaćanje

T/T, Western Union, Paypal, Kreditna kartica itd.

Isporuka

Zrakom, morem, ekspresno, po zahtevu kupaca.

5 Najčešća pitanja o HPMC hidroksipropil metil celulozi

Često postavljana pitanja o hidroksipropil metil celulozi (HPMC)

Za šta se koristi HPMC?

HPMC je uobičajen aditiv u mnogim proizvodima. Djeluje kao zgušnjivač, vezivo, i sredstvo za zadržavanje vode. Naći ćete ga u građevinskim materijalima poput ljepila za pločice i žbuke. Koristi se i u farmaciji, hrana, i kozmetiku jer je sigurna i stabilna.

Da li je HPMC siguran za ljudsku upotrebu?

Da, HPMC se smatra bezbednim. Regulatorne agencije poput FDA i EFSA odobrile su ga za upotrebu u hrani i lijekovima. Prolazi kroz tijelo a da se ne apsorbira, so it does not cause harm when used as directed.

Kako HPMC poboljšava građevinske materijale?

HPMC pomaže da se voda duže zadrži u mješavinama na bazi cementa. Ovo radnicima daje više vremena za rad s materijalom prije nego što stvrdne. Takođe čini mešavinu glatkijom i lepljivom, which improves adhesion and reduces cracking.

Can HPMC be mixed with other chemicals?

HPMC mixes well with most common ingredients used in its target industries. Međutim, strong acids or high salt concentrations may reduce its effectiveness. Always test a small batch first if you plan to combine it with new substances.

What affects the performance of HPMC?

Temperatura, pH level, and mixing method all affect how well HPMC works. High temperatures can weaken its thickening power. The ideal pH range is between 3 i 11. Make sure to add HPMC slowly while stirring to avoid lumps and ensure even distribution.