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Why is cellulose ether being widely used in pharmaceutical excipients?
Pharmaceutical excipients are excipients and additives used in the production of medicines and prescriptions, and are an important part of pharmaceutical preparations. As a natural polymer derived material, cellulose ether is biodegradable, non-toxic, and cheap, such as sodium carboxymethyl cellu...Read more -
Do you know about hydroxypropyl methylcellulose plant soft capsules and its colloid mill?
At present, the mature raw materials of plant capsules are mainly hydroxypropyl methylcellulose (HPMC) and pullulan, and hydroxypropyl starch is also used as raw materials. Since the beginning of the 2010s, HPMC has been applied in the Chinese plant capsule manufacturing industry, and based on it...Read more -
Do you know the performance of hydroxypropyl methylcellulose?
Hydroxypropyl methylcellulose is a kind of non-ionic cellulose mixed ether. Unlike ionic methyl carboxymethyl cellulose mixed ether, it does not react with heavy metals. Due to the different ratios of methoxyl content and hydroxypropyl content in hydroxypropyl methylcellulose and different viscos...Read more -
How does the smell of hydroxypropyl methylcellulose affect the quality?
What are the effects of odor size on hydroxypropyl methylcellulose: Synthesis of hydroxypropyl methylcellulose: Treat refined cotton cellulose with lye at 35-40°C for half an hour, press, crush the cellulose, and age properly at 35°C, so that the average degree of polymerization of the obtained a...Read more -
What are the benefits of using hydroxypropyl methylcellulose as a hollow capsule?
This product is 2-hydroxypropyl ether methyl cellulose, which is a semi-synthetic product. It can be produced by two methods: (1) After treating cotton linters or wood pulp fibers with caustic soda, they are mixed with chloromethane and epoxy Propane reacts, refined and pulverized to get it; (2) ...Read more -
Which plant-derived materials are suitable for the production of hollow hard capsules?
In the century-old history of capsules, gelatin has always maintained its position as the mainstream capsule material due to its wide range of sources, stable physical and chemical properties, and excellent processing performance. With the increase of people’s preference for capsules, hollo...Read more -
How is Hypromellose (HPMC) used in extended-release matrix tablets?
In the pharmaceutical industry, hypromellose (HPMC, METHOCEL™) can be used as filler, binder, tablet coating polymer and key excipient to control drug release. Hypromellose has been used in tablets for more than 60 years and is a key excipient widely used in hydrophilic gel matrix tablets. Many p...Read more -
What is the application of hydroxypropyl methylcellulose ether in machine blasting mortar?
The mechanized construction of mortar has been tried and promoted for many years in China, but no substantial progress has been made. In addition to people’s skepticism about the subversive changes that mechanized construction will bring to traditional construction methods, the main reason ...Read more -
What effect does cellulose ether have on cement-based materials?
1. Heat of hydration According to the release curve of the heat of hydration over time, the hydration process of cement is usually divided into five stages, namely, the initial hydration period (0~15min), the induction period (15min~4h), the acceleration and setting period (4h~8h ), deceleration ...Read more -
How about hydroxypropyl methylcellulose 400 viscosity as self-leveling mortar?
Self-leveling mortar is a dry-mixed powder material composed of a variety of active ingredients, which can be used after mixing with water on site. After a little spreading with a scraper, a high flat base surface can be obtained. The hardening speed is fast, and you can walk on it within 24 hour...Read more -
Do you understand the important role of cellulose ether in ready-mixed mortar?
In ready-mixed mortar, the addition amount of cellulose ether is very low, but it can significantly improve the performance of wet mortar, and it is a main additive that affects the construction performance of mortar. Reasonable selection of cellulose ethers of different varieties, different visc...Read more -
What factors affect the thickening of cellulose ether?
The thickening effect of cellulose ether depends on: the degree of polymerization of cellulose ether, solution concentration, shear rate, temperature and other conditions. The gelling property of the solution is unique to alkyl cellulose and its modified derivatives. The gelation properties are r...Read more
