Polyethylene Oxide, PEO

PEO-Polyethylene Oxide

What is Polyethylene Oxide

Polyethylene Oxide(PEO) is a nonionic water-soluble thermoplastic resin with properities that include excellent coagulation,binding effect, thickening, and friction reduction.

Polyethylene Oxide(PEO) is obtained through the heterogeneous polymerzation of ethylene oxide(CH2CH2O)N, which in turn creates poly(ethylene oxide) or PEO.

Polyethylene Oxide(PEO) is a high-polymer polyethylene oxide with high molecular weights ranging from 150,000 to 10 million, which is created from the polymerzation of ethylene oxide.

Polyethylene Oxide(PEO) can be used in a wide range of applications, can meet specific formulation and processing requirements.

General Specification

Items	Specification
Chemical Name	Polyethylene Oxide Powder
Appearance	White Powder
PH value, 25℃，1%	7-9
Mesh 20,	100%
Mesh 40	≥90%
Dry loss,105℃， wt%	≤1.5%
Ash content,wt%	≤0.5%
Epoxypropane,mg/kg	0.5max
Antioxidant,mg/kg	0.15max
MW,D	15,000-6,000,000
Pb content, mg/kg	≤0.03
MI (g/min)	40

Various Molecular Weight(MW) of Polyethylene Oxide Powder

Model	Approximate Molecular Weight	Viscosity of solution at 25℃ and given concentration, Brookfield RVF
Model	Approximate Molecular Weight	WT%	mPa.s(cp)
PEO P10	100,000	5	12-100
PEO P30	300,000	5	400-1,000
PEO P40	400,000	5	2,000-5,000
PEO P60	600,000	5	5,000-9,000
PEO P90	900,000	5	9,000-18,000
PEO P100	1,000,000	2	400-800
PEO P200	2,000,000	2	2,000-4,000
PEO P400	4,000,000	1	1,500-4,500
PEO P600	6,000,000	1	4,500-8,000

General Properties

1. Water-soluble thermoplastic resin,so PEO can be used for extrusion molding, foundry molding, and calendaring molding.

2. Also soluble in various organic solvents, can forms associated molecules with chemical compounds with high polarity such as urea, acrylic resin, and phenoi resin.

3. Non-ionic.

4. When dissolved, the solution show high viscosity even at low density, making PEO an effective thickener.

5. Products with high-molecular weights are viscoelastic,so their aqueous solutions can reduce spattering and misting, and have dispersing and coagulation properties.

6. Can’t be broken down by bacteria.Films of PEO are flexible, tough and resistant to most oils and greases.

7. Aqueous solution reduces friction resistance.

Function including as follows,

1. Film Former-

Resistant to oil and greases; Compatible with other resins and plasticizing agents.

2. Wet Tack- Sticky wet adhesives; Non-tacky when dry.

3. High Binding Efficiency--Outstanding binder for inks, pigments, ceramics, metal powders, fillers and more; Burns off clean at low temperatures

4. Cross-linkable-- Can form highly water-retentive gels by irradiation without initiators or co-agents.

5. Flocculant--Adheres onto colloidal materials;Efficiently separates fines from aqueous systems.

6. Viscoelasticity--Reduces splattering; Controls drift and misting when sprayed;Pituitous.

7. Lubricity-Super ability the lubricity,reduce the most friction.

8. Thermoplasticity--Readily extruded, calendared, injection-molded or cast; Heat-sealable and orientable.

9. Froms Novel Complexes--Associates with polar compounds such as phenolic resins, mineral acid, urea,etc.

10. Sulubility in Organic Solvents--Thickens ketons, alcohos, esters and some hydrocarbons; Not generally soluble in glycols, diols and aliphatic ethers.

11. Low Toxicity--Pooly absorbed and non-irritant

12. Drag Reduction-- Concerves energy by reducing turbulent friction for fluids

13. Thickening--Large range of viscosities that can be customized; Compatile from pH 2 to 13; Non-ionic and pseudoplastic.

Application Sectors

& Molecular Recommendation

Industry	Application	Function	Molecular Weight(MW) Suggestion
Paper Industry	Binder for paper	Binder	（4,000,000-8,000,000）
	Antistatic agent for paper	Thermoplastics	（4,000,000-8,000,000）
	Retention aid	Flocculant	（1,000,000-3,000,000）
	Water clarification	Flocculant	（1,000,000-3,000,000）
Agricultural	Soil stabilization	Binder	（4,000,000-8,000,000）
	Seed belt	Thermoplastics	（4,000,000-8,000,000）
	Drift control agent	Thickener	（3,000,000-4,000,000）
	Soil amendment	Water retention	(30,000-50,000)
Daily chemical	Detergent, hand soap	Lubricant or emollient	（100,000-500,000）
	Vanishing cream, lotion，Facial mask	Lubricant or emollient	（100,000-500,000）
	Shaving cream	Lubricant or emollient	（100,000-500,000）
	toothpaste	Lubricant or emollient	（100,000-500,000）
	Menstruation matrial	Water retention	(30,000-50,000)
Textile , Dye and Paint	Dye auxiliaries	Thermoplastics	（4,000,000-8,000,000）
	Temporary textile weft	Thermoplastics	（4,000,000-8,000,000）
	Antistatic agent for fabrics	Thermoplastics	（4,000,000-8,000,000）
	Latex paint	Thickener	（3,000,000-4,000,000）
	Remove paint	Thickener	（3,000,000-4,000,000）
	Spray paint	Thickener	（3,000,000-4,000,000）
	Fiber additives on glass fiber	Slow release agent	（80,000-100,000）
	Slurry	Flocculant	(200,000-500,000)
Oil and Mining	Drilling mud	Thickener	（3,000,000-4,000,000）
	Secondary oil recovery	Thickener	（3,000,000-4,000,000）
	Cementing fluid	Thickener	（3,000,000-4,000,000）
	Remove clay, wash coal	Flocculant	（2,000,000-3,000,000）
	Removing Silica	Flocculant	（2,000,000-3,000,000）
Construction and Building	Associate complex compound	Binder	（4,000,000-8,000,000）
	Clean partition wall	Thermoplastics	（4,000,000-8,000,000）
	Paving material components	Thickener	（3,000,000-4,000,000）
	Trenching mud	Thickener	（3,000,000-4,000,000）
	Glass fiber reinforced concrete	Dispersant	（1,000,000-2,000,000）
	Asbestos	Water retention	(30,000-50,000)
Electronics and Mechanical	Battery electrode	Binder	（3,000,000-8,000,000）
	Fluorescent lamp	Binder	（3,000,000-8,000,000）
	Cleaning fluid	Thickener	（2,000,000-4,000,000）
	Metalworking lubricants	Thickener	（2,000,000-4,000,000）
	Liquid jet cutting fluid	Drag reducer	(30,000-50,000)
Medical and Food	Denture fixative	Binder	（4,000,000-8,000,000）
	Beer foam stabilizer	Thickener	（3,000,000-4,000,000）
	Zinc lotion	Dispersant	（1,000,000-2,000,000）
	Eye drops	Lubricant or emollient	（100,000-500,000）
	Rubbing alcohol	Lubricant or emollient	（100,000-500,000）
	Tablet coating and disintegration	Slow release agent	（80,000-100,000）
Ceramics , glass , metallurgy and chemical	Ceramics	Binder	（4,000,000-8,000,000）
	Hydrometallurgy	Flocculant	（2,000,000-3,000,000）
	Ethylene polymerization	Dispersant	（1,000,000-2,000,000）
	Colloid for glass	Slow release agent	（80,000-100,000）
Package	Aqueous solution packaging supplies	Thermoplastics	（4,000,000-8,000,000）
transportation	Tire lubricant	Lubricant or emollient	（100,000-500,000）
Municipal	Fire water additives	Drag reducer	(30,000-50,000)
Municipal	Additives to prevent sewage overload	Drag reducer	(30,000-50,000)

Others.................................................................................................................................................

Dissolving

Methods for Dissolving PEO in Aqueous Solution

PEO dissolves completely in water, but in order to achieve total dissolving, the PEO must first be completely dispersed.

It takes about 05-4hours to dispersing into water. To dispersing the powder with minimal shear is important to facilitate complete dissolution. If the resins are added too quickly, the will form ge;-coated agglomerates that prevent complete hydration.

There are three major techniques that ensure sufficient dispersion of PEO resin particles, but the choice depends on the final viscosity target and required volume.

1. Direct addition to water

PEO is suggested to be slowly added to water while the water is being stirred. It will takes long time.

2. Pre-dispersion in water-miscible non-solvents

Another method that can be used is to first make a slurry of PEO in water-soluble solvent medium, and then add water.

PEO is first dispersed in a water-miscible non-solvent, such as isopropyl alcohol, to separate the individual partivles from each other. Each individual particle has a chance to swell, hydrate and dissolve. This techniques avoids the typical clumping that occurs when dissolved in water alone. The use of alcohols or glycols has the added benefit of stabilizing the solution viscosity over time

Packaging and Storage

A. Standard Packing:In 20kg/barrel.

B. Standard Packing:in 15kgs carton inner PE bags.

C. Standard Packing: In 20kg/ bags inner PE bags

Big Bag or other special packages are possible on request.

Store it in a cool, dark place away from direct sunligh, rain, dew , high humidity and heat resources. The temperature in the storage area should not exceed 30℃.

If PEO powder spills onto the floor and gets wet, it will become very slippery, so need to pay attention when working around split PEO.

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