Hydroxyethyl cellulose HEC

Product Description

Hydroxyethyl cellulose HEC
use: 1, pharmaceutical 2, latex paint, polymer 3, oil drilling 4, daily chemical,5.construction

Description: tasteless, odorless, non-toxic white or light yellow powder particles flow easily; non-ionic water-soluble polymer

Product properties: a thickening, binding, emulsification, dispersion, stability, and to maintain moisture to form a film and provide protective colloid effect, soluble in cold water and hot water, can provide a wider range of solution viscosity; is a high concentration of electrolyte solution thickener; water capacity than twice as methyl cellulose, has a good flow of regulatory. 

Application:

It is widely used paint, coating,oil drilling, building and construction, Adhesives and sealants,Pottery and

porcelain ,Advanced ceramics,Metal castings and foundry,paper,Pharmaceutical industry textile,

Cosmetic and Personal Care.

1. Pharmaceutical  : 

 In the pharmaceutical preparation, the products are generally used as a thickener, protective glue, adhesives, stabilizer and preparation of emulsion, gel, ointment, lotion, eye clear agent suppository and tablets of the additives, can also be used as a pro-Hydrogel, reinforcing materials, preparation of sustained release formulation framework. Such as for long-term three nitroglycerin tablets, codeine controlled release oral dosage form double celebrations. such as procainamide sustained release tablets can be used for foods as a stabilizer.

1) Excipient for ocular drug delivery systems, drug release in the eye play a prominent role;

2) Release oral formulations to give a good performance. As Hydroxyethyl Cellulose is the largest and dissolution of hydrophilic polymer differ with other cellulose, Hydroxyethyl Cellulose matrix containing the drug showed drug diffusion and matrix erosion of the synchronization framework, with Easy to obtain zero order release potential. Common

medium viscosity Hydroxyethyl Cellulose;

3)For delay-based drug delivery systems. As a non-ionic properties of hydroxyethyl cellulose, has nothing to do with the PH value of the release, you can make the release of drug at the scheduled time and can quickly take effect;

4)Line materials for biological adhesion,etc.

Technical specification

 2.

Application Guide for the coatings industry:

High thickening effect

 Hydroxyethyl Cellulose as latex paints, especially high-PVA coating, providing excellent coating properties. Paint a thick paste, it will not produce flocculation.
 Hydroxyethyl Cellulose has a higher thickening effect. can reduce the amount of formula to improve the economy, while improving the performance of paint abrasion.

Excellent rheological properties

 Hydroxyethyl Cellulose aqueous solution of non-newtonian system, the performance of their solution have called thixotropy.
In the stationary state, the product is completely dissolved, the best coating system to maintain shape and cans thickening state. 

In the dump state, the system to maintain moderate viscosity, making the product has excellent liquidity, and does not splash.
Brushing and roller coating, the product is easy to spread in the substrate. Facilitate the construction. At the same time, have a good anti-splash.
 Finally, when the paint coating is completed, the viscosity immediately resume, paint immediate sag resistance.

Dispersion and solubility

 Hydroxyethyl Cellulose are dissolved after a delay in processing, in the case of dry powder added, can effectively prevent caking. Ensure that HEC powder fully dispersed, began to hydration.
 After proper surface treatment of Headcel Hydroxyethyl Cellulose, a good adjustment of the dissolution rate and viscosity of the product increased speed.

Storage stability

Hydroxyethyl Cellulose has good mildew performance, provide sufficient time for the paint store. Effective prevention and treatment of pigments and filler sedimentation.

3.

Coating industry recommend the use of various grades of  Hydroxyethyl Cellulose:

Remark: S —> Surface treatment, SE —> Enzyme resistance

Application Guide for the cosmetics industry:

 Cosmetics level  Hydroxyethyl Cellulose has good mildew performance, thickening and rheology modification system function, good water retention, film formation, to give the final product full of visual effects and all the necessary application performance .
 Hydroxyethyl Cellulose through the production process of fine extract, to minimize the residual solvent and residual on ignition.
 After surface treatment of Hydroxyethyl Cellulose with cold water soluble, dry powder can be used directly to water. Good dispersion of the product in water to avoid the product knot groups, dissolved uneven happen. Final solution uniform, continuous and full.Hydroxyethyl Cellulose thickening effect in addition to providing the necessary and rheological properties, but also has good color acceptance.

4

Cosmetics industry uses grade Hydroxyethyl Cellulose:

Remark: CMT —> cosmetic grade

Oil industry Application Guide:

Applicated in cementing and oil drilling industries

Hydroxyethyl Cellulose thickening agent can be used as oil well workover fluid and cementing agent. Help to provide clarification of the low fixed content solution, thus greatly reducing the structural damage to the wells.The use of Hydroxyethyl Cellulose thickening fluid easily acids, enzymes or oxidants decomposition, greatly improving the ability to recover hydrocarbons.
 Fluid in the well, Hydroxyethyl Cellulose is used as proppant carrier. These liquids can be easily through the process of cracking.
Hydroxyethyl Cellulose configuration using drilling fluid, based on its low solids content, can effectively increase drilling stability. These properties can be used to inhibit the fluid medium to high hardness of the rock and heavy shale or shale drilling.
 Reinforcement in the cement operations,  Hydroxyethyl Cellulose slurry can reduce the hydraulic friction, the loss of rock to minimize water loss.

Oil industry use grade Hydroxyethyl Cellulose: