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HEMC (Hydroxyethyl methyl cellulose)
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HEMC (Hydroxyethyl methyl cellulose)

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HEMC (Hydroxyethyl methyl cellulose)

HEMC products Supplier |HEMC Factory |Hydroxyethyl methyl cellulose

HEMC products Supplier | HEMC Factory |Hydroxyethyl methyl cellulose |MHEC/ HEMC powder has good compatibility with most inorganic salts and a wide range of gum and resin. Used as cement, gypsum, lime gelling agent, water retention agent, etc


   


Product Detail:

HEMC Hydroxyethyl methyl cellulose is mainly used in interior and exterior wall putty powder, tile adhesive, tile jointing agent, dry powder interface agent, interior and exterior wall insulation mortar, self-leveling mortar, repair mortar, decorative mortar, waterproof mortar, etc.
MHEC powder uses
1. The synthesis of latex and the formulation of water-based coatings
In the components of emulsion coatings, MHEC (Hydroxyethyl methyl cellulose) from FUNAHAI serves several important functions. It prevents the gelation of pigments, aids in pigment dispersion, stabilizes the latex, and can increase the viscosity of the components. MHEC powder exhibits good compatibility with other materials in the formulation, such as pigments, additives, fillers, and salts. Coatings thickened with Hydroxyethyl methyl cellulose exhibit good rheological properties at various shear rates and possess pseudoplasticity. They can be applied using various methods such as brushing, rolling, or spraying. These coatings are easy to work with, as they are less prone to dripping, running, splattering, and have good leveling properties.
2. Oil drilling
In the context of oil drilling and extraction, high-viscosity MHEC powder is primarily used as a thickening agent in drilling and completion fluids. Low-viscosity MHEC is used as a fluid loss reducer. MHEC powder serves as a thickening agent in various drilling, completion, cementing, and fracturing fluids, ensuring that mud has good flowability and stability. In drilling, it can enhance the mud's ability to carry rock cuttings and prolong the life of the drilling bit. In low-solids drilling and completion fluids, MHEC's excellent water loss control properties help prevent significant water infiltration into the wellbore, improving wellbore stability.
3. Construction
Hydroxyethyl methyl cellulose MHEC can be used in construction products such as concrete mixes, freshly mixed mortar, gypsum plaster, or other mortars to provide water retention during their construction process before setting and hardening. In addition to improving the water retention properties of construction products, MHEC thickener can also extend the workability and open time of plaster or mortar. It helps reduce issues like skinning, slumping, and sagging.
4. Cosmetics and Detergents
HEMC (Hydroxyethyl methyl cellulose) is an effective binder, thickener, stabilizer, and dispersant used in various hair care products such as shampoos, hair sprays, conditioners, and cosmetics. In these products, it helps improve the texture, consistency, and stability of formulations.
In addition, water soluble MHEC CAS9032-42-2 is also utilized as an anti-redeposition agent in detergent powders. This means it helps prevent dirt and soil particles from reattaching to fabrics during the washing process, thus aiding in the overall cleaning efficiency of laundry detergents.
5. Macromolecule polymerization
MHEC (Hydroxyethyl methyl cellulose) serves as a dispersing, emulsifying, suspending, and stabilizing agent in the polymerization or copolymerization components of synthetic resins. It can be used to protect colloids in these processes. Its key characteristics include strong dispersion capabilities, resulting in products with thin "skins" on particles, fine particle size, uniform particle shape, a loose structure, good flowability, high transparency, and ease of processing.
6. Other
Cellulose thickener MHEC is used in pesticide emulsion and suspension formulations as a thickening agent for spray emulsions or suspensions. MHEC powder is also employed in various other applications, including cleaning agents, polishing compounds, electroplating inks, insecticides, fire-resistant pencil materials, ceramics, cushion padding, tobacco products, welding fluxes, and cable filling compounds, where it serves as a water-resistant powder to prevent moisture infiltration into cables.
Considering to buy hydroxyethylcellulose from reliable manufacturer?
For the preparation of aqueous solutions containing MHEC, the following recommended procedure should be followed:
1. Begin by agitating water thoroughly to ensure uniformity in the solution. Gradually introduce MHEC into the agitated water to prevent the formation of lumps.
2. Continue adding MHEC powder until it is completely incorporated into the water, making sure to complete this step before any notable increase in solution viscosity occurs.
3. Maintain continuous agitation until all the added MHEC powder is fully dissolved. To facilitate the dissolution of Hydroxyethyl methyl cellulose MHEC, consider employing one of the following methods:
a. Wet Hydroxyethyl methyl cellulose MHEC with a water-compatible alcohol before introducing it into the water.
b. Blend MHEC with another powdered substance that is either immiscible with water or exhibits low solubility in water.

Advantages and Features

MHEC powder properties

1. High thickening efficiency and wide range of viscosity grades, to get any desired thickening efficiency.
2. Good compatibility with most inorganic salts and a wide range of gum and resin.
3. Anti-biodegradable MHEC powder products have excellent stability, to ensure a nice shelf life for paint.
4. Good protective colloid activity, to prevent coagulation of solid particles in the coating.
5. Less insoluble matter, clear and transparent aqueous solution.
6. Small viscosity fluctuation.
7. High purity, low moisture content, low ash content.
Anti- biodegradation performance
The use of an excellent MHEC thickener with anti-biodegradable properties minimizes viscosity loss.
The solution properties l
MHEC chemical hydration time counts from the initial wetting to a moment when the solution starts to become viscous. Hydration time could be varied to meet a special requirement. MHEC hydration time, apparently affected by the pH value.Typically ranges from 4 to 25 minutes.
The solution properties ll
In the actual conditions of industrial applications, shear rate is an important factor to consider when the amount of Hydroxyethyl methyl cellulose MHEC required to achieve a certain viscosity. Generallyspeaking, the higher the shear rate, the lower the viscosity.
The solution properties lll
The most important property of Hydroxyethyl methyl cellulose powder is that it acts as a thickener, in creasing the viscosity of the liquid,and its thickening depends on its concentration (shown below). In addition, the effect of different viscosity grade on the thickening property can alsobe clearly seen, under the other constant parameters, the viscosity of HEMC cellulose increases with the increase of viscosity grade.

Packaging and Shipping:

Packaging and storage: 25 kg/bag
Note: The product is packaged in polypropylene woven bags, each with a net weight of 25kg.
When storing, place in a ventilated and dry place indoors, pay attention to moisture.
Pay attention to rain and sun protection during transportation.
Quantity/20GP: 12 tons with pallets, 14 tons without pallets.
Quantity/40HQ: 24 tons with pallets, 28 tons without pallets.
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
  • HPMC Packaging
    HPMC Packaging,Hydroxypropyl Methyl Cellulose Packaging
FAQ:
  • Regarding the relationship between viscosity and temperature in HPMC (HPMC viscosity), what should be noted in practical applications?

    The viscosity of HPMC is inversely proportional to temperature, meaning that viscosity increases as temperature decreases. When we refer to the viscosity of a certain product, it generally refers to the measurement result of its 2% water solution at 20 degrees Celsius. In practical applications, in regions with large temperature differences between summer and winter, it is advisable to use relatively lower viscosity during winter for better construction. Otherwise, at low temperatures, the viscosity of the cellulose increases, resulting in a heavier feel during application. Medium viscosity: 75,000-100,000 (mainly used for putty) Reason: Good water retention. High viscosity: 150,000-200,000 (mainly used for polystyrene particle insulation mortar powder and foamed glass bead insulation mortar) Reason: High viscosity, reduces mortar dusting and sagging, improves construction. However, in general, higher viscosity provides better water retention. Therefore, many dry mortar manufacturers consider using medium-viscosity cellulose (75,000-100,000) instead of low-viscosity cellulose (20,000-40,000) to reduce the dosage and costs.

  • What are the differences between HPMC and MC?

    MC stands for methyl cellulose, which is a cellulose ether made from purified cotton through alkali treatment using chloromethane as the etherification agent, followed by a series of reactions. The degree of substitution is generally 1.6-2.0, and different degrees of substitution result in different solubilities. It belongs to non-ionic cellulose ethers. 1. Methyl cellulose's water retention depends on the amount added, viscosity, particle size, and dissolution rate. Generally, a higher amount, smaller particle size, and higher viscosity result in better water retention. Among these cellulose ethers, methyl cellulose and hydroxypropyl methyl cellulose have higher water retention. 2. Methyl cellulose is soluble in cold water but has difficulty dissolving in hot water. Its aqueous solution is stable within the pH range of 3-12. It has good compatibility with starch, guar gum, and many surfactants. Gelation occurs when the temperature reaches the gelation temperature. 3. Temperature variation significantly affects the water retention of methyl cellulose. Generally, higher temperatures result in poorer water retention. If the temperature of the mortar exceeds 40°C, the water retention of methyl cellulose decreases significantly, which adversely affects the workability of the mortar. 4. Methyl cellulose has a noticeable impact on the workability and adhesion of mortar. "Adhesion" refers to the adhesion force between the worker's application tool and the wall substrate, i.e., the shear resistance of the mortar. A higher adhesion leads to higher shear resistance, requiring more force from the worker during application and resulting in poorer workability. Among cellulose ether products, methyl cellulose has a moderate level of adhesion. HPMC stands for Hydroxypropyl Methyl Cellulose. It is a non-ionic cellulose ether derived from refined cotton through alkalization, using epichlorohydrin and chloromethane as etherification agents in a series of reactions. The degree of substitution is generally between 1.2 and 2.0. Its properties vary with the ratio of methoxy content to hydroxypropyl content. (1) Hydroxypropyl Methyl Cellulose is soluble in cold water, but it can be difficult to dissolve in hot water. However, its gelation temperature in hot water is significantly higher than that of methyl cellulose. Its solubility in cold water is greatly improved compared to methyl cellulose. (2) The viscosity of Hydroxypropyl Methyl Cellulose depends on its molecular weight, with higher molecular weight leading to higher viscosity. Temperature also affects its viscosity, with viscosity decreasing as temperature rises. However, its viscosity is less affected by temperature compared to methyl cellulose. Its solution is stable when stored at room temperature. (3) Hydroxypropyl Methyl Cellulose exhibits stability in acids and alkalis, and its aqueous solution is highly stable within the pH range of 2 to 12. It is minimally affected by sodium hydroxide and lime water, although alkalis can accelerate its dissolution and slightly increase its viscosity. It demonstrates stability in general salts, but at higher salt concentrations, the viscosity of Hydroxypropyl Methyl Cellulose solution tends to increase. (4) The water retention capacity of Hydroxypropyl Methyl Cellulose depends on factors such as the dosage and viscosity, and at the same dosage, its water retention rate is higher than that of methyl cellulose. (5) Hydroxypropyl Methyl Cellulose can be mixed with water-soluble high molecular weight compounds to form homogeneous solutions with higher viscosity. Examples include polyvinyl alcohol, starch ethers, and plant gums. (6) Hydroxypropyl Methyl Cellulose exhibits higher adhesion in mortar construction compared to methyl cellulose. (7) Hydroxypropyl Methyl Cellulose has better resistance to enzymatic degradation compared to methyl cellulose, and its solution is less likely to undergo enzymatic degradation.

  • What are the other names for Hydroxypropyl Methyl Cellulose (HPMC)?

    Hydroxypropyl Methyl Cellulose, in English: Hydroxypropyl Methyl Cellulose, also known as HPMC or MHPC. Other names: Hydroxypropyl Methyl Cellulose; Cellulose Hydroxypropyl Methyl Ether; Hypromellose; Cellulose, 2-hydroxypropylmethyl Cellulose ether; Cellulose hydroxypropyl methyl ether; Hyprolose.

  • How to choose the appropriate hydroxypropyl methylcellulose (HPMC) for different applications?

    For putty applications, a lower viscosity of 100,000 is sufficient, and good water retention is important. For mortar applications, higher viscosity of 150,000 is preferred. For adhesive applications, a high-viscosity, quick-dissolving product is required.

  • Is HPMC safe?

    HPMC is approved by the FDA, aka Food and Drug Administration as a direct and indirect food additive, and an acceptable daily intake has been established. In addition to this, HPMC is used in home and personal care.

  • Why do we need HPMC in building materials?

    HPMC provides strong bond strength and slip resistance when laying tiles. The HPMC in the plaster paste also results in a smooth and even surface without cracks. In self-levelling operations, labour is greatly reduced, improving manoeuvrability and efficiency.

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