Polyethylene Oxide CAS 68441-17-8

Polyethylene oxide has minimal toxicity and pseudoplasticity. Its solubility can be used to prepare soluble film, which has unique advantages. It can be used for agricultural seed belts. Next, the water in the soil dissolves the film and the seeds begin to germinate. In addition, cross-linked polyethylene oxide can absorb nearly 100 times its own weight of water, which is suitable for the soil roots of plants to retain water and enhance the plant’s anti-aging ability. Blending polyethylene oxide with other resins can be used to make plastic packaging. As a degradable plastic, it is a green product and is of great significance to environmental protection.

In wood pulp papermaking, it is often necessary to add fillers to make the paper white and non-reflective, but in the production process, there will be a considerable loss of fine fibers of fillers. In order to avoid this situation, 0.03 Kg/ The polyethylene oxide of t can significantly reduce the loss, and, as a flocculant, polyethylene oxide has a synergistic effect, which can improve the retention rate of fillers, pigments and fibers and increase the drainage rate. The solution of 1% to 5% concentration of polyethylene oxide is very viscous, and the viscosity disappears after drying. It can be used as an adhesive for paper-making rolls, using polyethylene oxide with a molecular weight of 400,000-500,000, which can open the paper roll without tearing the paper.

High molecular weight polyoxyethylene ether has many functions such as bonding, dispersing, flocculation and thickening, etc. It can be used in textile pulp, thickener, etc., and has been widely used in the textile industry.

Polyethylene oxide has a high viscosity and can be used in adhesives. High-molecular-weight polyethylene oxide has a strong thickening ability and can be used as a washing additive. It can increase viscosity and produce a soft and smooth feeling. It can be used in cleaning agents. In contact with the surface to be washed, the cleaning effect is improved, and the application effect of polyethylene oxide with high molecular weight and narrow molecular distribution is better.

Adding polyethylene oxide resin to synthetic strip detergent can increase lubricity and softness, the effect is very obvious, and its lubricity can exceed that of soap. Adding polyoxyethylene to liquid detergent can not only enhance foam stability, improve hand feeling, but also thicken detergent liquid. Adding polyethylene oxide resin to toothpaste, shaving products, creams, lotions and other beauty cosmetics and shampoos can increase the consistency of these products and improve their lubricity.

The flow of water in the pipe is subject to dynamic resistance, which can be converted into the pressure loss of the fluid in the pipe and the frictional resistance of the water against the pipe surface. High-molecular-weight polyethylene oxide is the most effective polymer for reducing fluid turbulent frictional resistance. Its resistance reduction rate is higher than that of polyacrylamide and guar gum. A small amount of PEO in turbulent water flow can make the internal pressure of the fluid And the impact force becomes larger, reducing the turbulence of the water flow. It has already been applied to fire-fighting water pipe systems in foreign countries, and the fast water additive VCAR of United Carbon Chemical Company has been commercialized in the 1970s.

A small amount of PEO [(30～100)×10-6] can reduce the frictional resistance of water passing through the fire pipeline by more than 80%, double the range of water, and transport about 60% more water through the general standard diameter (6.35 cm) fire hose. If this additive is used in the fire extinguishing process, it can not only improve the fire extinguishing efficiency and minimize the economic loss caused by the fire, but also ensure the personal safety of firefighters due to the increased range.

This additive is a semi-fluid thin mixture, which is PEO with a molecular weight greater than 500,000 (preferably 1 million to 12 million) and a vacuum density of (1.15 to 1.26)×103 m3/kg, and an inert carrier. Mix and add a small amount of thickener to prepare. The carrier used is a mixture of two miscible liquids or a solution of one solid dissolved in another liquid. This solution is a non-solvent for PEO, but it is easily miscible with water; the thickener does not mix with polyethylene oxide To react with the carrier, silica gel is generally used, and the dosage is 0-3.5% of the total weight of the additive.

In addition, using this characteristic of PEO, adding a small amount of this resin (about 200×10-6) into the sewage pipeline can increase the sewage flow rate by 50% to 100%, and improve the drainage capacity of the sewage pipeline. When the pipeline is seriously overloaded, adding high molecular weight PEO to the sewage system in the form of dry powder can make the sewage pipeline still competent when the load is too large.