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Global HPMC market trend 2025-2030 Influence of Viscosity and Fineness of Hydroxypropyl Methyl Cellulose on Mortar Properties by Newsmapachili

The roble had hit a record low after the West imposed sweeping sanctions on Russia for its aggression in Ukraine. Russia's president recently ordered exports of Russian gas to "unfriendly" countries to be settled in robles. The speaker of Russia's upper house of parliament said Moscow was prepared and could shift supplies to markets such as Asia if Europe refused to buy Russian energy.

European countries, which pay mostly in euros, say Russia has no right to reset contracts.  The G7 rejected Russia's demand and urged companies not to agree to pay in robles, saying most contracts stipulated payment in euros or dollars. Wholesale gas prices in Europe have risen further recently on concerns about potential supply disruptions.

The Kremlin spokesman said, "According to the March 31 deadline set by Russia's president, we are developing all payment methods to get a simple, understandable, and feasible system for relevant European and international buyers,"

The markets and prices of more commodities like the HPMC would be affected because of the volatile international political situations.

Viscosity and fineness are important indicators that affect the performance of hydroxypropyl methylcellulose HPMC. Studies have shown that the water retention effect of HPMC increases with the increase of its viscosity, but after the viscosity exceeds 40000 MPa•s, the water retention increases limited with the increase of viscosity. The higher the viscosity, the larger the molecular weight of HPMC, and the corresponding decrease in solubility. It will not improve the water retention of mortar, but it will have a negative impact on strength and workability. Comprehensive consideration, it is more appropriate to use cellulose ether with a viscosity of 40000 MPa•s in the cement mortar.


As the HPMC particles gradually become finer, the water retention of the mortar is also improved to a certain extent. Fineness affects the solubility of HPMC. Coarse HPMC dissolves very slowly in water and should not be used in dry mix mortars. In dry-mix mortar, HPMC is dispersed between aggregates, fine fillers and cementitious materials such as cement, and only a fine enough powder can prevent it from caking when mixed with water. When HPMC is added with water to dissolve the agglomerates, it is difficult to re-disperse and dissolve. HPMC with coarse particle size is not only wasteful, but also reduces the local strength of the mortar. When such dry-mixed mortar is used in large-scale construction, the curing speed of the local mortar may be significantly reduced, which may cause uneven hydration of the cementitious material. of cracking. For mechanically constructed spray mortars, due to the shorter mixing time, the requirements for the fineness of HPMC are higher. Therefore, after comprehensive consideration, the particle size of cellulose ether used for cement mortar should be less than 80 μm.


It can be seen that HPMC is a high-efficiency water-retaining agent for dry-mixed mortar, which reduces the bleeding rate and stratification of the mortar, and improves the cohesion and sag resistance of the mortar. Although HPMC slightly reduces the flexural and compressive strength of mortar, it can significantly improve the tensile strength and bond strength of mortar. In addition, HPMC can effectively inhibit the formation of mortar plastic cracks and reduce the mortar plastic cracking index. The water retention of mortar increases with the increase of HPMC viscosity, and when the viscosity exceeds 40000MPa•s, the water retention does not increase significantly. The fineness of HPMC also has a certain influence on the water retention rate of the mortar. When the particles are finer, the water retention rate of the mortar increases. The particle size of HPMC usually used for cement mortar should be less than 80μm.


TRUNNANO is a concrete additives supplier with over 12 years experience in nano-building energy conservation and nanotechnology development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

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Recently, Russia's deputy prime minister said that the number of countries buying Russian oil is increasing, including Asian countries. Russia will use the "East Siberia-Pacific" pipeline system to increase exports to Asian countries and promote the diversification of oil output.  

He also said that Russian oil HPMC are expected to continue to increase in the future.

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