Polyether polyol (polyether for short) is an organic polymer, which is prepared by the addition of starting agent (compound containing active hydrogen group) and ethylene oxide (EO), propylene oxide (PO), ethylene oxide butane (BO) in the presence of catalyst. The maximum yield of polyether is to use glycerol (glycerin) as the starting agent and epoxide (generally PO and EO are used), by changing the feeding mode of PO and EO (mixed or separate), dosage ratio, feeding order and other conditions, to produce a variety of general polyether polyols.
Chinese name: polyether polyols
Foreign name: Polyether polyol
CASNO. : 9003-11-6
Subject: Polymer Chemistry
Type: Polymer
Main functional groups: hydroxyl group, alkoxy group
Boiling point >200 ℃(lit.)
Flash point >230 °F
Refractive index n20/D 1.466
Pressure of vapor
Vapor density >1 (vs air)
Product Purpose
1, detergent or defoaming agent
L61, L64, F68 for the preparation of low foaming, high detergency synthetic detergent; L61, L81 used as defoaming agent in papermaking or fermentation industry; F68 is used as an antifoaming agent during blood circulation in the artificial heart-lung machine to prevent air from entering.
2. Excipient and emulsifier
Polyether has low toxicity and is often used as drug excipients and emulsifiers. It is often used in mouth, nasal sprays, eye and ear drops, and shampoos.
3. Wetting agent
Polyethers are effective wetting agents that can be used in acid baths for dyeing fabrics, photographic development and electroplating, and in sugar factories using F68, more sugar can be obtained due to the increased permeability of water.
4. Antistatic agent
Polyethers are useful antistatic agents, and L44 provides long-lasting electrostatic protection against synthetic fibers.
5. Dispersing agent
Polyether is used as a dispersant in emulsion coatings. F68 acts as an emulsifier when the vinyl acetate emulsion is polymerized. L62, L64 can be used as pesticide emulsifier, coolant and lubricant in metal cutting and grinding. It is used as a lubricant when rubber is vulcanized.
6. Demulsifier
Polyether can be used as demulsifier of crude oil, L64, F68 can effectively prevent the formation of hard scale in oil pipelines, and used for secondary oil recovery.
7, paper additives
Polyether can be used as paper additive, F68 can effectively improve the quality of coated paper; Also used as a bleaching aid.
8. Preparation and application
Polyether polyol series products are mainly used to prepare rigid polyurethane foam plastics, which are widely used in refrigerators, freezers, refrigerated vehicles, heat insulation boards, pipe insulation and other fields. The obtained product has low thermal conductivity and good dimensional stability, which is also an important raw material for the preparation of composite polyethers. The production of polyether polyols is mainly used in polyurethane foam plastics in the polyurethane industry, and the main varieties are polypropylene oxide polyols and polytetrahydrofuran ether polyols.
Packing Specification
YC SERIES polyethers for rigid foams and elastoids, coatings and adhesives are packed in 55 gallon standard iron drums.
Samples: divided into 500-1000ml plastic bottles
Original packaging: 200kg/ barrel (NET200kg)
Loose water: customized by user
Protective Measures
Store polyether in a cool, dry and ventilated place. Prevent rain, sun; Avoid rain, exposure and collision during transportation.
1, in addition to the addition of food and other things, almost no toxicity, no irritation to the skin, even if directly into the eyes is soap degree of irritation, no damage to the cornea.
2. Precautions in use
(1) Do not contact directly with air because of moisture absorption.
(2) Avoid open fire, should avoid heating in the air for a long time, especially the insulation materials and clothing infiltrated by polyether polyols tend to catch fire naturally, should be paid attention to.
(3) When adhering to the skin, wash with plenty of water, and wash eyes with water for more than 15 minutes when entering the eyes.
(4) In case of overflow, remove it with sawdust, yellow sand, cloth and other permeable substances, and flush it away with a lot of water.
3, fire extinguishing, with foam, powder, carbon dioxide, water spray, a lot of water, etc.
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Company Introduction
Shandong DESENLAI Chemical Co., Ltd. was established in July 2011, headquartered in Tianqiao District, Jinan City, Shandong Province.
With more than ten years of fine chemical business foundation, DSL Chemical is committed to building the most valuable chemical trading company in the whole industrial chain in China. With advanced marketing concept combined with modern management mode, the company provides customers with quality products and services and comprehensive "all-around" solutions.
The company adheres to the goal of green and sustainable development, and has long been committed to the operation of various fine chemical products, involving lithium new energy, biodegradable materials and other green energy fields. Such as NMP, butyrate, BDO, adipic acid, glycol and so on.
