Poly Anioniccellulose (PAC)

Poly Anioniccellulose (PAC)

Polyanionic cellulose is a water-soluble cellulose ether derivative obtained by chemically modifying natural cellulose. It is an important water-soluble cellulose ether, usually in the form of its sodium salt, and is widely used in oil drilling, especially in salt water wells and offshore oil drilling.

It is a white to light yellow powder or particle, odorless, non-toxic, hygroscopic, easily soluble in cold and hot water.

Good compatibility: It is compatible with other cellulose ethers, water-soluble glues, softeners, resins, etc.; when the substitution degree of PAC exceeds 1.2, it gradually shows oil solubility.

Good solubility: It can be quickly dissolved in cold water and hot water with a simple stirring device; hot water dissolves faster; instant PAC can be fully dissolved within a few minutes, greatly improving the convenience of use and production efficiency.

Good stability: PAC aqueous solution is light-stable and has a longer shelf life; it has strong anti-bacterial and mildew resistance and does not ferment.

Extremely low usage: Due to the high substitution degree and high stability of PAC itself, its usage is only equivalent to 30%-60% of carboxymethyl cellulose (CMC) under the same use environment, which reduces the cost of use of enterprises to a certain extent. It has a high cost-effectiveness advantage; at the same time, it saves the consumption of raw materials and has high economic and social benefits.

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  01

  Oil Drilling Field

  It is an important drilling fluid additive, which can be used as a fluid loss reducer, thickener, etc. It can effectively control the fluid loss of mud, increase the viscosity and shear force of mud, ensure the stability of the well wall during drilling, and prevent the well wall from collapsing. It is particularly suitable for deep wells, high-temperature wells, salt water wells and offshore oil drilling.

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  02

  Papermaking Industry

   It can be used for pigment coating, pulp addition, surface sizing and other processes. It can control and adjust the rheology of the coating and the dispersibility of the pigment, increase the solid content of the coating,and increase the stiffness and smoothness of the paper, control curling, and improve the surface strength of the paper.

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  03

  Daily Chemical Industry

  It is used as a thickener in toothpaste to make the toothpaste have a suitable consistency and stability, which is easy to extrude and use; it is used as a hydrosol in cosmetics to play the role of thickening, emulsification, stabilization, etc., and improve the texture and use effect of cosmetics.

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  04

  Textile Industry

  It can be used as a sizing agent for light yarns to replace starch in the textile industry. It can improve the strength and bendability of the size film, improve the bonding between fibers, ensure the uniformity of sizing, and thus improve the efficiency of weaving. It can also be used as a finishing agent for textiles to bring about durable changes in fabrics.

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  05

  Coatings

  It can be used as an anti-settling agent, emulsifier, dispersant, leveling agent, and adhesive in coatings. It can evenly distribute the solid content of the coating in the solvent, so that the coating will not be stratified for a long time.

1.Raw material preparation: The main raw material is refined cotton, and a small part uses wood pulp as raw material. The moisture content of refined cotton and wood pulp is 8%, and all participate in the reaction.

2.Acid and alkali preparation section: Add 95% alcohol, add solid chloroacetic acid under stirring, and prepare a 57% solution; add the weighed refined cotton and the measured liquid alkali into the alkalizer at the same time, and evenly infiltrate into the cellulose for 60 minutes. The alkali is excessive in this process, and the pH is 12.

3.Etherification process: The alkalized material is fed into the etherification machine, and the temperature is raised in the etherification machine for about 90 minutes. After the reaction is completed, the temperature is lowered to 40-45 degrees, and the material is fed into the washing tank for washing.

4.Washing process: first, the prepared alcohol is pumped into the washing tank, and then the material is discharged from the etherification machine into the washing tank, the pH value is measured, and then hydrochloric acid is added for neutralization, pH=7, and after stirring for a certain period of time (20 minutes), it is pumped into the centrifuge through a screw pump for solid-liquid separation. The solid cellulose continues to recover alcohol in the next process, and the liquid part enters the waste wine tank and is pumped into the distillation tower for alcohol purification.

5.Rake and dry section: The cellulose solid material from the centrifuge has a moisture content of 45%. It enters the air stripper through vacuuming, rake and heating to recover the alcohol, and then enters the drying and crushing process to finally obtain the product.

Este produto é embalado em sacos de papel multicamadas revestidos com polietileno. Peso líquido: 25 kg.

Sacos vazios podem ser reciclados ou incinerados. Embalagens fechadas podem ser armazenadas por vários anos. Embalagens abertas podem afetar o teor de umidade do produto devido à umidade do ar. Armazene em local fresco e seco, longe da luz solar. Evite armazenar sob pressão.

Para obter informações sobre manuseio, envio e armazenamento do produto, consulte a FISPQ.