Powder Sulphonated Naphthalene Formaldehyde HRWR for Concrete Superplasticizer

Powder Sulphonated Naphthalene Formaldehyde HRWR for Concrete Superplasticizer 

Sodium Naphthalene Sulfonate Supplier CAS 9084-06-4 Product Description:

SODIUM NAPHTHALENE SULFONATE POWDER can be used together with other concrete admixtures such as retarders, accelerators and air-entrains. It is compatible with most of the known brands, but we recommend to carry-out compatibility test under local conditions before using. The different admixtures should not be premixed but added separately to concrete.

Chemical uses:

1. The concrete strength and slump in substantially the same, can reduce the amount of cement 10-25%.
2. In the same water-cement ratio, the concrete initial slump raise more than 10cm water reduction rate of 15-25%.
3. The concrete has a significant early strength, the reinforcing effect, the strength of improved rate of 20-60%.
4. To improve the workability of concrete, improve the physical and mechanical properties of concrete.
5. Good adaptability to various cement, and other various types of concrete admixtures compatibility is good.
6. Is particularly suitable for use in the following concrete projects: flowing concrete, plastic concrete, steam curing concrete, impervious concrete, waterproof concrete, nature conservation precast concrete, reinforced and prestressed concrete, high strength ultra-high strength concrete .
7. When the loss of a large concrete slump, slump loss of nearly half an hour to 40%.High water reducing rate (15% ~ 25%), not bleed air, small influence on the setting time, and cement adaptability is relatively good, can be used with other complex admixture of, the price is relatively cheap.

Our company can provide a variety of specifications Sodium naphthalene Sulphonate formaldehyde condensatio, waiting for you to choose, you are welcome to visit the factory and discuss cooperation.

About Us:

Our company's technical team uses industrial naphthalene, sulfuric acid and formaldehyde as raw materials, through sulfonation, hydrolysis, condensation and neutralization, to obtain a naphthalene-based superplasticizer. The content of raw naphthalene, sulfuric acid species, ratio, reaction time, reaction The effect of temperature, acidity, and feeding method on the performance of naphthalene-based superplasticizers.

The results show that the best synthesis conditions are: naphthalene purity ≥95%, sulfuric acid content i>98%, sulfonation temperature 160～165℃, sulfonate Conversion time 2h, sulfonated acidity 32%, sulfuric acid is added dropwise, hydrolysis temperature 110℃, hydrolysis time 0.5h, acidity control during condensation 26%, condensation temperature 105-110℃, condensation time 2.5～3.0h, using lime milk Neutralize to pH=7-9.

When the content of naphthalene-based superplasticizer is 1%, it will compare with other similar products in the net slurry fluidity, compressive strength, water reduction rate, bleeding rate, and slump with time Comparing losses and other aspects, achieved better results, reduced product costs, and improved product performance