Hydroxypropyl Methyl Cellulose Hot Sale

Hydroxypropyl methylcellulose (HPMC) is a nonionic cellulose ether with many excellent properties, which makes it widely used in many fields.

1. Construction industry

Cement mortar and concrete additives

In construction projects, HPMC is widely used as an additive for cement mortar and concrete. It can significantly improve the working performance of cement mortar and concrete. When added to cement mortar, HPMC can increase the water retention of the mortar and prevent the water from evaporating too quickly. This helps to improve the adhesion of the mortar, so that the mortar can better adhere to the building surface such as the wall during the application process, and reduce hollowing and cracking. In concrete, HPMC can improve the workability of concrete, making it easier to mix, transport and pour, and help reduce the occurrence of shrinkage cracks during the hardening of concrete.

For example, when building brick walls, using cement mortar with HPMC added can make the bond between bricks stronger and improve the overall strength and stability of the wall. In the concrete pouring of high-rise buildings, the addition of HPMC can ensure that the concrete can still maintain good performance under complex construction environments (such as high temperature, long-distance transportation, etc.).

Application in putty powder and latex paint

In putty powder, HPMC is a key ingredient. It can increase the adhesion, water retention and flexibility of putty powder. Putty powder with good water retention is not easy to dry too quickly after construction, which can provide sufficient operation time for construction workers. At the same time, good adhesion ensures that putty powder can be firmly attached to the wall base, while flexibility helps prevent cracks in the putty layer during the drying process or when subjected to slight external force.

In latex paint, HPMC is mainly used to adjust the rheological properties of latex paint. It can make latex paint have appropriate viscosity, prevent pigment sedimentation, and enable latex paint to flow better during the painting process to obtain a uniform coating. This helps to improve the hiding power and decorative effect of latex paint, making the wall color more uniform and beautiful.

2. Pharmaceutical industry

Drug preparations

HPMC is widely used in drug preparations in the pharmaceutical field. As a pharmaceutical excipient, it can be used to prepare tablets, capsules, etc. In tablets, HPMC can be used as a binder to bond drug powders together to form tablets, and can control the release rate of drugs. For example, for some preparations that require slow release of drugs, HPMC can delay the release of drugs by forming a gel barrier, so that the drugs can continue to work in the body and improve the efficacy of the drugs.

In capsules, HPMC can be used to prepare the shell of the capsule. It has good film-forming properties and biocompatibility, can wrap the drug, protect the drug from the external environment (such as humidity, light, etc.), and can dissolve or disintegrate in the gastrointestinal tract in a predetermined manner to release the drug.

Ophthalmic drugs

In terms of ophthalmic drugs, HPMC has unique application value. Due to its good hydrophilicity and viscosity, HPMC can be used to prepare eye drops or eye ointments. In eye drops, HPMC can increase the viscosity of eye drops, prolong the residence time of drugs on the ocular surface, and improve the bioavailability of drugs. This is very important for the treatment of eye diseases (such as glaucoma, dry eye, etc.), because it can make the drug better contact with the eye tissue and play a therapeutic role.