Hydroxyethyl Cellulose (HEC) is a common and widely used non-ionic water-soluble polymer. It is a white or light yellow powder prepared by chemical reaction of natural cellulose. Hydroxyethyl Cellulose is a multifunctional water-soluble polymer material. Its main function is to thicken, bind and retain water, thereby improving the performance and use effect of various liquid or paste products.

1. The main function of hydroxyethyl cellulose

The core function of HEC is to use its unique physical and chemical properties to change the characteristics of the liquid, which is mainly reflected in the following aspects:

(1).Thickener
This is the most important function of HEC. When it is dissolved in water, its molecular chains will stretch and entangle with each other to form a three-dimensional network structure, thereby increasing the viscosity of the liquid.
In paint, adding HEC can prevent pigment precipitation and make the brush feel smoother and non-drip; in shampoo and shower gel, it can make the product thicker and improve the use experience.

(2). Binder
HEC has excellent bonding properties and can help bind solid particles together.
In the construction industry, it is added to cement mortar and gypsum putty to enhance the bonding strength and workability of the material; in ceramic production, it is also used to bond ceramic bodies.

(3). Protective Colloid
HEC can form a protective film in the liquid to prevent particles from agglomerating and settling, maintaining the stability and uniformity of the system.
In latex paint, it can stabilize latex particles and prevent them from agglomerating; in some medicines or cosmetics, it is also used to stabilize emulsions and suspensions.

(4). Water Retainer
HEC has excellent water retention capacity and can effectively slow down water evaporation.
In building mortar and putty powder, HEC can prolong the setting time and allow cement to fully hydrate, thereby improving the strength and bonding strength of the material. In agriculture, it is also used in some sprays to prevent rapid evaporation of water and improve the efficacy of the medicine.

2. Common application areas of hydroxyethyl cellulose

HEC is widely used in many industries due to its non-toxic, stable and good thickening effect:
Coatings and paints: As a thickener, dispersant and stabilizer, it significantly improves the rheological properties of coatings.
Building materials: As a water-retaining agent and thickener, used in cement mortar, putty powder, tile adhesive, etc.
Petroleum industry: As a thickener and fluid control agent in drilling fluid.
Pharmaceutical and food industries: Used as a thickener, stabilizer or film-forming agent in some medicines, eye drops and foods.

3. Storage of hydroxyethyl cellulose

The storage environment of hydroxyethyl cellulose (HEC) requires special attention to ensure its stable performance and service life. Proper storage can prevent it from getting damp, agglomerating, and deteriorating, ensuring that it performs as it should when used.

(1). Storage environment requirements
Dry and cool: HEC is a water-soluble polymer that is very easy to absorb moisture. Therefore, it must be stored in a dry and cool environment, away from direct sunlight and high temperature. Ventilation: Good ventilation can help control the humidity of the environment and prevent moisture accumulation. Moisture-proof and rain-proof: The storage place should be moisture-proof and rain-proof. If HEC is damp, it will not only clump, but also affect its dispersion and solubility in water, resulting in the appearance of "fish eyes" (i.e., particles that are not completely dissolved) when used. Keep away from heat and fire sources: Although HEC itself is not flammable, it should be stored away from high temperatures or places with open flames to prevent accidents.

(2). Packaging and container requirements 
Sealed packaging: HEC is usually packaged in multi-layer paper bags or composite bags. After opening, the bag should be resealed immediately to prevent moisture from entering the air. Original packaging storage: It is best to store it in the original packaging bag. If it needs to be transferred to another container, make sure the container is clean, dry and well sealed. 

(3). Other precautions 
Avoid heavy pressure: HEC packaging bags should not be stacked too high to prevent the bottom packaging bag from being damaged due to pressure and causing moisture. Maintain Cleanliness: Keep storage areas clean to prevent dust and other impurities from entering packaging and contaminating the product.
First-in, First-out Principle: Prolonged storage may affect product performance. We recommend using inventory according to the first-in, first-out principle to ensure optimal product condition.
Clear Labeling: Ensure packaging labels, such as the product name, batch number, and production date, are clearly visible for easier inventory management.