water treatment equipment suppliers
Links
- While HPMC itself is generally considered safe for use in pharmaceutical products, there are several factors that manufacturers must consider to ensure its safety during manufacturing processes. These include
- The first step in the manufacturing process is the selection of raw materials. The raw materials used in the production of redispersible polymer powder typically include polymers such as vinyl acetate, acrylic esters, and ethylene. These polymers are chosen based on their properties and intended applications of the final product.
- In the food industry, HPMC finds use as a stabilizer, emulsifier, and thickener
- Hydroxyethyl cellulose (HEC), a versatile and widely used polymer, is derived from cellulose through an ethoxylation process. It finds application in various industries, including construction, cosmetics, pharmaceuticals, and food, due to its unique rheological properties, particularly its viscosity. The viscosity of HEC is a critical factor that influences its performance and functionality in these applications.
- One of the most common applications of HPMC is in the construction industry. It is widely used as a thickener and water-retaining agent in cement-based products such as mortars, plasters, and grouts. HPMC improves workability, adhesion, and open time of these products, making them easier to handle and more durable. Due to its water retention properties, HPMC helps prevent cracking and shrinkage in cementitious materials.
- In the pharmaceutical industry, HEC is commonly used as a thickening agent in liquid oral medications and as a sustained-release agent in drug delivery systems. Its inert nature makes it suitable for use in formulations that require stability and biocompatibility.
The Joint FAO/WHO Expert Committee on Food Additives (JECFA, 1990) assessed the compound together with six other cellulose derivatives and allocated a group acceptable daily intake (ADI) of ‘not specified’. The Scientific Committee for Food (SCF, 1994, 1999) who assessed five closely related cellulose derivatives, also allocated a group ADI of ‘not specified’. The most recent evaluation of cellulose and cellulose derivatives, including HPMC for their use as food additives was done in 2018 by the EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) (EFSA ANS Panel, 2018), which concluded that there was no need to set a numerical ADI.
Einsatz von HPMC


HPMC



hpmc que es.
Seit 1998 gibt es auch pflanzliche Kapseln auf dem Markt. Mit HPMC steht den Verbrauchern ein völlig unbedenkliches, pflanzliches Produkt zur Verfügung, sodass auch Veganer oder Vegetarier und Menschen, die aufgrund ihrer Religion auf Gelatine verzichten,eine Alternative zu Gelatine-Kapseln haben.
HPMC-Kapseln halten hohen Temperaturen sowie hoher Luftfeuchtigkeit stand und besitzen einen geringen Eigenfeuchtigkeitsgehalt. Dadurch sind die Kapselhüllen zur Aufbewahrung von feuchtigkeitsempfindlichen Zutaten geeignet. Sie schützen somit ihren Inhalt vor allen Arten von Schwankungen wie beispielsweise Temperaturschwankungen und Feuchtigkeit. HPMC-Kapseln sind somit