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Showing posts from December, 2017

Polyurethane in People's Life

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Polyurethane is widely used in people's life. The rigid PU foam is a product with excellent insulation performance. It has been widely used in domestic appliances and construction. PU elastomer is used for roller, conveyor belt, hose, auto parts, sole, synthetic leather, wire and cable and medical artificial viscera. Soft PU foam is used for vehicles, bedroom, clothing liner, etc. Coatings are used for advanced vehicles, furniture, wood and metal protection, reservoir DAMS and building anti-permeability materials, and fabric coatings. The adhesive has good adhesion to metal, glass, ceramics, leather, fiber and so on. In addition, polyurethane can also be made into an emulsion, magnetic material and so on. PU is produced by polyether polyol as raw material and is called polyether polyurethane. Polyurethane has a variety of polyether and different properties, which determines the broad development background of polyether polyurethane.

The development trend of organophosphorus flame retardants

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Organophosphorus flame retardant is widely used because of its wide variety and good performance. But it also has disadvantages. Organic phosphorus flame retardants are mostly liquid, it has the volatile, smoke, toxicity and poor thermal stability. So the trends are: 1. To develop the high molecular weight of a high polymer and oligomer organophosphorus flame retardants to reduce volatility and increase thermal stability. 2. Multi-functional organic phosphorus flame retardants, such as a plasticizer or crosslinking agent. That can resist vibration, anti-static, waterproof, and reduce toxicity. 3, To develop the multifunctional flame retardants, such as flame retardants containing halogen, phosphorus, and nitrogen of three elements of two or three kinds. Due to the synergistic effect of the molecular, it can improve the flame retardants performance. IRO Coating Additive Co,.Ltd mainly manufactures four flame retardants. They are TCEP , diethyl ethylphosphonate , DMMP , and

20 Types of Flame Retardants

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  1.  Sb 2 O 3 : high purity ≥99.8%, size 0.4-1.1um, whiteness 98.(additive flame retardant co-agent)   2. TBC: bromine content ≥64.5%, melting point 100-110℃.(additive non-toxic flame retardant)   3. MCA: content ≥99%, decomposition temperature 440-450℃.(reaction non-toxic flame retardant)   4. TBP: content ≥98.5%, melting point ≥92℃.(reaction flame retardant)   5. ATP, APW, APZ: for production of expansive flame retardant coatings, heavy anti-corrosion coatings.(additive non-toxic flame retardant)   6. TBBA: bromine content ≥58.5%, melting point 180℃.(additive reaction flame retardant)   7. TBPA.(additive flame retardant)   8. PBDPO: bromine content 62-70.(additive flame retardant)   9. DBDPO: bromine content 82-83%, melting point 300-310℃.(additive flame retardant agent)   10. TCP.(additive flame retardant)   11. TCPP .(additive flame retardant)   12. TDCP.(additive flame retardant)   13. TCEP .(additive flame retardant)   14. TPP.(additive flame retardant)  

Alkyl Polyglucoside Is New Surfactant

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Alkyl polyglucoside (APG) is a new generation of non-ionic surfactant that is being developed internationally. It is synthesized by carbohydrate and natural fatty alcohols under the action of acidic catalysts. Sugar units are hydrophilic and alkyl is oil-friendly. Alkyl polyglucoside are mixtures of monoside, diglycosides, and triglycosides, and the molecular structure is as follows: Alkyl polyglucoside is characterized by all the raw materials for biodegradable natural resources. It is safe and non-toxic. The sugar monomer and alkyl ether bond are easy to degrade and environmentally friendly. Alkyl polyglucoside is good for decontamination, solubility, compatibility, mild skin and chemical stability. It has the characteristics of non-ionic surfactants and anionic surfactants. And the synergistic effect is obvious when used with other kinds of surfactants. The raw materials are renewable resources, which are not affected by the production of coal and oil, but also can so