DS: the substituent of HPMC is Hydroxypropyl and Methoxy. The ratio of them affects HPMC properties. The higher the hydroxypropyl content, the better the water retention effect. The lower the methoxy content, the higher the gel temperature. The DS of HPMC is 1.2-2.0. But HEC substituent is Hydroxyethyl substituent. Its DS is 1.5-2.0.
The price of RDP powder can vary depending on the manufacturer, quality, and quantity needed for a specific project. Typically, the price ranges from $1.50 to $3.00 per kilogram, but this can fluctuate based on market demand and other factors. Higher quality RDP powders are usually more expensive, but they offer superior properties and performance compared to lower quality alternatives. In the paint and coating industry, HPMC serves as a binder, improving the flow and leveling properties of paints, and reducing brush marks. It also enhances the water resistance and durability of coatings, making them more resistant to weathering.
(1)HPMC or Hydroxypropyl methylcellulose (INN name: Hypromellose), also simplified as hydroxypropyl methylcellulose (HPMC), is a kind of non-ionic cellulose mixed ether. It is a semi-synthetic, inactive, viscoelastic polymer. Hydroxypropyl methylcellulose is widely used in construction, food, medicine, and other industries.
Interactions with other ingredients:
One of the key factors propelling the market forward is the push towards green building solutions. Redispersible polymer powders enhance the properties of cement-based mixtures while reducing the overall consumption of cement, which is energy-intensive and contributes significantly to carbon emissions. This eco-friendly advantage aligns well with global sustainability initiatives, making these powders an attractive option for manufacturers and end-users alike. Several factors contribute to the growth of China's MEHPC industry. Firstly, China's robust economy and growing infrastructure sector provide a steady demand for MEHPC in construction applications. Secondly, the country's commitment to environmental protection has led to an increased demand for MEHPC in the production of environmentally friendly products. Finally, China's strategic location and well-developed transportation network make it an attractive destination for foreign investors looking to tap into the growing MEHPC market.