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Application of Polyethylene Oxide (PEO) (I)
Release Date：2018-4-12 Source：xiashundong Views：865
The application of PEO, after years of research and development, has been quite mature in some departments, but it is still in research and development in many fields.
(1) Binder
PEO is a very low-toxicity water-soluble resin. The 1-5% by weight PEO solution is very viscous and has a strong gelling property. It is used medically for this feature of PEO aqueous solutions. The filling material adhesive structure agent fills in between the filling material and the gum and has no strange odor, and can also play the role of denture fixation.
If PEO is mixed with some phenolic compounds, a transparent, highly viscous complex will be obtained. This complex is ideal for bonding PTFE and polyethylene.
(2) Detergents
Generally neutral liquid cleaning agent suitable for washing dishes such as tableware and chopsticks, containing 45% of water, about 10% of C12-C15 fatty acids, a little spice and 0.1-0.5% of molecular weight of 6 × 105 PEO. The purpose of adding PEO to the detergent is to make the detergent thick and feel smooth, which mainly utilizes the viscosity and lubricity of the low concentration aqueous solution of PEO resin.
(3) Inks, paints, coatings
The quality of the ink will directly affect the quality of the printed matter. Adding 0.1-0.15% by weight of water-containing ink to a PEO resin with a molecular weight of 1x106-3.5x106 will greatly improve the performance of the ink, and the color and uniformity Significantly improved. This is mainly due to the addition of PEO resin, which acts as thickening and lubrication.
In addition, these properties of PEO resins are also commonly used in paints and coatings. After the addition of PEO resin to paints and coatings, the effect of the use of PEO resin is significantly improved, and no gradation of unevenness occurs.
(4) Ceramic Molding
The ceramic molding is the key to the ceramic industry. When molding, the clay is first mixed evenly, and then added to the fixed mold. The clay is mixed with water only. After molding, it is easy to crack, fall, affect the quality of the ceramic products, plus In the case of clay slabs, the incorporation of some water-soluble PEO resins in the clay mix will greatly improve, because PEO resin low-concentration solutions are lubricious and sticky, making the clays evenly mixed, conducive to moulding, and also in water. After being volatilized, it will not crack or break, which can greatly increase the output and quality of ceramic products. The molecular weight of PEO required for ceramic molding is 4×105-3.5×106.
(5) Packaging film
Films made of PEO resin are good packaging materials. For example, as the inner packaging of cigarettes, in the United States to control the concentration of smoke in the air when smoking, in the production of cigarettes, a porous paper covered with a PEO resin film, under appropriate conditions Can be slowly degraded, used as a molecular weight of this film PEO resin to achieve 1.5 × 106-6.0 × 106.
The PEO film can also be used to wrap pre-weighed pesticides, pigments, fertilizers, detergents, pesticides, etc. When the water is put into the water, the film dissolves quickly and the wrapper is released to prevent the user from touching poisons or dangerous goods. And prevent secondary pollution.
(6) Artificial mucus material
PEO resin has a strong water absorption, and generally can absorb 5 to 100 times its own weight of water into a gel-like material. Due to this property, it can be widely used in medicine, such as: patients used for dressing to deal with the scald accident, skin or eye damage. Because these patients are extremely vulnerable to infections and need moisture from drugs and moisture, they use about 106 PEO resins.
(7) Papermaking
Japan produces about 1,500 tons of PEO resin, of which more than 90% of the resin is used as an additive for papermaking. In the papermaking industry, a large amount of PEO with a molecular weight of about 5-6×10 6 is used, and about 0.5 kg of resin is added per ton of pulp. By using its viscosity, it reduces the movement rate of fibers. At the same time, PEO has a lubricating effect on cellulose and enables the fibers to be evenly distributed to achieve the requirements for the production of ultra-thin and special-purpose papers [9], enabling the pulp to be read at a low defect resolution. Paper is possible. Adding a small amount of PEO will make the paper with higher strength and better uniformity. At the same time, it will also reduce energy consumption, reduce the loss of fine fibers, and increase the speed of the machine. Due to the non-ionic nature of PEO, the use of PEO does not affect the addition of other additives. At present, it is widely used in the production of high-grade toilet paper, cigarette paper, cork raw paper, electrolytic capacitor paper, invoice paper and tea low-filter paper.
PEO resin is very helpful in removing the bentonite component and dehydration in the pulp. The use of a PEO solution with a molecular weight of 4×10 6 and a concentration of 0.01% can reduce the bentonite content in the pulp from 16% to 2%. The dehydration speed has increased significantly.
(1) Binder
PEO is a very low-toxicity water-soluble resin. The 1-5% by weight PEO solution is very viscous and has a strong gelling property. It is used medically for this feature of PEO aqueous solutions. The filling material adhesive structure agent fills in between the filling material and the gum and has no strange odor, and can also play the role of denture fixation.
If PEO is mixed with some phenolic compounds, a transparent, highly viscous complex will be obtained. This complex is ideal for bonding PTFE and polyethylene.
(2) Detergents
Generally neutral liquid cleaning agent suitable for washing dishes such as tableware and chopsticks, containing 45% of water, about 10% of C12-C15 fatty acids, a little spice and 0.1-0.5% of molecular weight of 6 × 105 PEO. The purpose of adding PEO to the detergent is to make the detergent thick and feel smooth, which mainly utilizes the viscosity and lubricity of the low concentration aqueous solution of PEO resin.
(3) Inks, paints, coatings
The quality of the ink will directly affect the quality of the printed matter. Adding 0.1-0.15% by weight of water-containing ink to a PEO resin with a molecular weight of 1x106-3.5x106 will greatly improve the performance of the ink, and the color and uniformity Significantly improved. This is mainly due to the addition of PEO resin, which acts as thickening and lubrication.
In addition, these properties of PEO resins are also commonly used in paints and coatings. After the addition of PEO resin to paints and coatings, the effect of the use of PEO resin is significantly improved, and no gradation of unevenness occurs.
(4) Ceramic Molding
The ceramic molding is the key to the ceramic industry. When molding, the clay is first mixed evenly, and then added to the fixed mold. The clay is mixed with water only. After molding, it is easy to crack, fall, affect the quality of the ceramic products, plus In the case of clay slabs, the incorporation of some water-soluble PEO resins in the clay mix will greatly improve, because PEO resin low-concentration solutions are lubricious and sticky, making the clays evenly mixed, conducive to moulding, and also in water. After being volatilized, it will not crack or break, which can greatly increase the output and quality of ceramic products. The molecular weight of PEO required for ceramic molding is 4×105-3.5×106.
(5) Packaging film
Films made of PEO resin are good packaging materials. For example, as the inner packaging of cigarettes, in the United States to control the concentration of smoke in the air when smoking, in the production of cigarettes, a porous paper covered with a PEO resin film, under appropriate conditions Can be slowly degraded, used as a molecular weight of this film PEO resin to achieve 1.5 × 106-6.0 × 106.
The PEO film can also be used to wrap pre-weighed pesticides, pigments, fertilizers, detergents, pesticides, etc. When the water is put into the water, the film dissolves quickly and the wrapper is released to prevent the user from touching poisons or dangerous goods. And prevent secondary pollution.
(6) Artificial mucus material
PEO resin has a strong water absorption, and generally can absorb 5 to 100 times its own weight of water into a gel-like material. Due to this property, it can be widely used in medicine, such as: patients used for dressing to deal with the scald accident, skin or eye damage. Because these patients are extremely vulnerable to infections and need moisture from drugs and moisture, they use about 106 PEO resins.
(7) Papermaking
Japan produces about 1,500 tons of PEO resin, of which more than 90% of the resin is used as an additive for papermaking. In the papermaking industry, a large amount of PEO with a molecular weight of about 5-6×10 6 is used, and about 0.5 kg of resin is added per ton of pulp. By using its viscosity, it reduces the movement rate of fibers. At the same time, PEO has a lubricating effect on cellulose and enables the fibers to be evenly distributed to achieve the requirements for the production of ultra-thin and special-purpose papers [9], enabling the pulp to be read at a low defect resolution. Paper is possible. Adding a small amount of PEO will make the paper with higher strength and better uniformity. At the same time, it will also reduce energy consumption, reduce the loss of fine fibers, and increase the speed of the machine. Due to the non-ionic nature of PEO, the use of PEO does not affect the addition of other additives. At present, it is widely used in the production of high-grade toilet paper, cigarette paper, cork raw paper, electrolytic capacitor paper, invoice paper and tea low-filter paper.
PEO resin is very helpful in removing the bentonite component and dehydration in the pulp. The use of a PEO solution with a molecular weight of 4×10 6 and a concentration of 0.01% can reduce the bentonite content in the pulp from 16% to 2%. The dehydration speed has increased significantly.