Difference between HPMC and MHEC

HPMC and MHEC have similar functions in construction materials. It can be used as a dispersant, water retainer, thickener and binder, mainly in the forming of cement mortars and plaster products. These substances give tile adhesives better plasticity and flexibility. Here TANGPENG, the manufacturer of MHEC, shows you how they differ.

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Production process

The raw material for the production of HPMC can be refined cotton or wood pulp, which is partly methyl cellulose and partly polyhydroxypropyl ether. The cellulose is alkalinised and then etherified with a reaction system of propylene oxide and chloromethane.

The production of MHEC is slightly different from that of HPMC. After alkalinisation of the cellulose, it is produced by replacing propylene oxide with ethylene oxide, which replaces the hydroxyl group on the glucose ring group.

Physical and chemical properties

The methoxy on HPMC chloromethane replaces the hydroxyl group on the glucose ring group. HPMC has thermal gel properties, its solution is not ionically charged, does not interact with metal salts or ionic compounds, is highly resistant to mould, has good dispersing, emulsifying, thickening, binding, water retention and glue retention properties.

Compared to HPMC, MHEC has more hydrophilic groups in its chemical structure and is therefore more stable at high temperatures and has good thermal stability. It has a higher gel temperature compared to normal HPMC cellulose ethers, making it more advantageous in high temperature use environments.

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Application places

The gel temperature of cellulose ethers determines their thermal stability in applications. the gel temperature of HPMC is usually between 60°C and 75°C, depending on the type of other manufacturers, the component content and the different production processes. Due to the nature of the MHEC molecule, it has a higher gel temperature, usually above 80°C, and is therefore more stable at high temperatures than HPMC.

MHEC has better hydrophilicity because it has more hydrophilic groups in its structure. At the same viscosity and exact dosage, MHEC retains slightly more water than HPMC in mortars.

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Difference between HPMC and MHEC

HPMC (Hydroxypropyl Methylcellulose) and MHEC (Methylhydroxyethylcellulose) are two types of cellulose derivatives used in a variety of applications. Both are polymers-based substances that are used to thicken, bind, and stabilize products. They are both widely used in the food, pharmaceutical, and cosmetic industries.

The main difference between HPMC and Mhec is the type of cellulose used to make them. HPMC is made from hydroxypropyl methylcellulose, while Mhec is made from methylhydroxyethylcellulose. HPMC is a more highly refined form of cellulose, while Mhec is a less refined form.

HPMC is a white, odorless, and tasteless powder that is soluble in cold water. It is used as a thickening agent, emulsifier, stabilizer, and suspending agent in a variety of products. It is also used to increase the viscosity of solutions and to improve the texture of products. It is often used in food products such as ice cream, sauces, and dressings.

Mhec, on the other hand, is a white, odorless, and tasteless powder that is soluble in both hot and cold water. It is used as a thickening agent, emulsifier, stabilizer, and suspending agent in a variety of products. It is also used to increase the viscosity of solutions and to improve the texture of products. It is often used in food products such as ice cream, sauces, and dressings.

In terms of performance, HPMC is generally considered to be more effective than Mhec. It is more stable and has a higher viscosity than Mhec. It is also more resistant to changes in temperature and pH. Additionally, HPMC has a longer shelf life than Mhec.

In terms of cost, HPMC is generally more expensive than Mhec. This is because HPMC is a more highly refined form of cellulose and is therefore more expensive to produce.

Overall, HPMC and Mhec are both widely used in the food, pharmaceutical, and cosmetic industries. They are both used as thickening agents, emulsifiers, stabilizers, and suspending agents in a variety of products. HPMC is generally considered to be more effective than Mhec, but it is also more expensive.

If you are looking for more details, kindly visit MHEC chemical.