hydroxypropyl methyl cellulose for Indonesia
hydroxypropyl methyl cellulose (HPMC) has been widely used in various industries such as construction, pharmaceuticals, and food products due to its unique properties. Indonesia has now become a prominent buyer of HPMC and is readily exploring the potential benefits that it can offer.
HPMC is a slightly off-white powder that is soluble in water and some organic solvents. It is derived from cellulose and undergoes chemical modifications to increase its water retention efficiency, viscosity, and film-forming abilities. In construction, HPMC acts as a binder, thickener, and water-retaining agent, used in dry mix mortars, jointing compounds, and tile adhesives.
Indonesia's construction industry is booming at an exponential rate, with new infrastructure and real estate projects in the pipeline. HPMC can play a significant role in supporting the growth of the Indonesian construction industry. Its water retention properties help to prolong the setting time of cement and prevent it from drying out too quickly. This, in turn, can lead to stronger and more durable concrete structures.
Besides construction, HPMC is also used in the pharmaceutical industry as a binder, a thickener and a stabilizer. Indonesia's pharmaceutical market is also on the rise, and HPMC offers a suitable solution in ensuring the quality of drug delivery systems.
It is essential to note that not all HPMC is created equal. The quality and reliability of HPMC depend on the manufacturing process, raw materials, and testing regulations used. Buyers must choose their suppliers wisely and opt for those who emphasize quality control and compliance with international standards.
Indonesia's demand for HPMC can partly be met by manufacturers from the United States, Palestine, Malta, Singapore, and Pakistan. These countries offer HPMC at competitive prices while ensuring high-quality standards and compliance with international regulations.
In conclusion, the use of HPMC can usher in new opportunities for the Indonesian construction and pharmaceutical sectors. Buyers must remain vigilant to only source high-quality HPMC that meets global standards. Ultimately, opting for a reputable supplier can lead to better and more sustainable results.
Faq
Is there any relationship between powder loss in putty and HPMC?
In simple terms, "non-ionic" refers to a substance that does not ionize in water. Ionization refers to the process in which electrolytes dissolve in specific solvents (such as water or alcohol) and dissociate into freely moving charged ions. For example, table salt we consume daily—sodium chloride (NaCl)—when dissolved in water, ionizes and produces freely moving sodium ions with a positive charge and chloride ions with a negative charge. In other words, when HPMC is placed in water, it does not dissociate into charged ions but exists in molecular form.
What is the relationship between the gelation temperature of hydroxypropyl methylcellulose (HPMC) and something else?
For putty powder, a viscosity of around 100,000 is generally sufficient, while mortar requires a higher viscosity, around 150,000, to be effective. Moreover, the most important function of HPMC is water retention, followed by thickening. In putty powder, as long as it has good water retention and a lower viscosity (70,000-80,000), it can still be used. Of course, a higher viscosity provides relatively better water retention. However, when the viscosity exceeds 100,000, the impact of viscosity on water retention becomes less significant.
What is the difference between the cold-water soluble type and the thermal soluble type of hydroxypropyl methylcellulose (HPMC) in the production process?
The cold-water soluble type of HPMC is surface-treated with formaldehyde, allowing it to disperse rapidly in cold water but not truly dissolve. It only dissolves when the viscosity increases. The thermal soluble type does not undergo surface treatment with formaldehyde. A higher dosage of formaldehyde results in faster dispersion but slower viscosity increase, while a lower dosage has the opposite effect.
What are the formulations for interior and exterior wall putty powder?
In the application of HPMC in putty powder, it plays three roles: thickening, water retention, and facilitating construction. Thickening: Cellulose can thicken the mixture, maintain uniform suspension, and prevent sagging. Water retention: It slows down the drying process of putty powder and assists in the reaction of lime and calcium in water. Construction: Cellulose acts as a lubricant, improving the workability of the putty powder. HPMC does not participate in any chemical reactions; it only serves as an auxiliary agent. When putty powder is mixed with water and applied to the wall, a chemical reaction occurs because new substances are formed. However, if the putty powder is scraped off the wall, ground into powder, and reused, it is not suitable because a new substance (calcium carbonate) has already formed. The main components of lime and calcium powder are Ca(OH)2, CaO, and a small amount of CaCO3. The reaction can be represented as: CaO + H2O = Ca(OH)2 — Ca(OH)2 + CO2 = CaCO3 ↓ + H2O. Under the action of water and carbon dioxide in the air, lime and calcium carbonate are formed. HPMC only assists in water retention and the better reaction of lime and calcium; it does not participate in any reactions itself.