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RDP Re-Dispersible Polymer Powder
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RDP Re-Dispersible Polymer Powder

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RDP Re-Dispersible Polymer Powder

Re-Dispersible Polymer Powder RDP | Re-Dispersible Polymer Powder RDP supplier | Re-Dispersible Polymer Powder RDP factory

RDP is a kind of powder binder made by spray drying special emulsion(high polymer). Funahai RDP is green environmental protection,building energy saving, high quality and multi-purpose powder building materials.


   

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Product Detail:

Funahai redispersible polymer powder (RDP) can rapidly disperse to form emulsion after contact with water and has the same properties as the initial emulsion, i.e., it can form a film after water evaporates, and this film has high elasticity, high weather resistance and high adhesion to various substrates. The addition of Funahai RDP enhances the wetting and water retention properties of the mortar.
Redispersible polymer powder, also known as VAE Chemical or RDP Chemical, is a powder binder made from a special emulsion (high molecular polymer) spray-dried. The VAE/RDP powder can be quickly dispersed to form an emulsion after solving into water, and has the same properties as the initial emulsion, that is, a film can be formed after the water evaporates. This film has high flexibility, high weather resistance and good adhesion to various material, is an essential functional additive for dry-mix mortar.
Effect of VAE Chemical:
Improve the performance of the mortar, increase the strength of the mortar, increase the bonding strength of the mortar with various substrates, and increase the flexibility and deformability of the mortar, and compressive strength, flexural strength, abrasion resistance, toughness, adhesion and water retention capacity and workability.
As a leadingRDP& VAE Chemical supplier, Funahai adopts advanced production technology and equipment from Germany, has 18 production lines, with a product quality rate of 100%, daily output can be up to 200 tons at now.
Moreover, we have a strong technical organization with the capabilities to maximize the benefits of cellulose ethers in your application. We offer technical assistance to our customers in products analysis, formulation optimization etc. We also provide high performance VAE chemical and construction grade HPMC for sale with low cost price. Welcome to contact us for detailed information!

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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