Application of Polyether Polyol in Polyurethane (PU)

//Application of Polyether Polyol in Polyurethane (PU)

Polyurethane (PU) is a kind of organic polymer material with multiple carbamate chains. It was reacted by polyisocyanate and polyol. Because there are multiple carbamate (urethane for short) groups in the PU molecular structure. It was also called polyurethane. Polyurethane (PU) has been widely used in rigid foam, soft foam, elastomer, coating, adhesive, sealant, and other products. Polyurethane (PU) has different applications in different industries. Polyurethane (PU) has a variety of polyether and different properties, which determines the wide prospect of polyether polyurethane.

Polyether Polyurethane Classification

Polyether polyol is the main raw material of PU. The consumption of polyether used in PU is more than 80%. Polyether polyurethane can be classified polyether polyol (PPG), polymeric polyol (POP), polytetramethyl ether ethylene glycol (PTMEG, also called polytetrahydrofuran polyol) according to the initiator. According to the number of active hydrogen atoms in the initiator, the polyether polyols with different function can be obtained. Polyether polyurethane also can be divided into soft foam polyether, rigid foam polyether and elastomer with polyether according to Performance of polyether products.

Polyether Polyurethane Applications

There are many kinds of polyether polyols for polyurethane (PU). PU materials with different performance can be obtained with the reaction between different initiators and olefin polymerization. By modifying the PU raw materials or changing the catalyst, polyether performance can be modified. These initiators include diethyl alcohol, ternary alcohol, tetrahydrofuran and aromatic polyether polyols, etc.

Polyether Polyurethane Development

With the application of Polyurethane (PU), as one of PU raw materials, polyether polyol has already attracted worldwide attention. More and more PU advantages had been shown. The demand is also grown. The demand of polyether polyol is mainly used in PU rigid foam, soft foam, and molding foam products. The production of polyether polyol is mainly in the hands of BASF, BAYER, DOW Chemical and Shell Chemical. The PU industry is fast growing in Asia, and China is the fastest in Asia.

In recent years, foreign companies have invested rapidly in China, and domestic manufacturers have been developing rapidly in the polyurethane. China will be the fastest growing country in the Asian polyurethane market. At present, several major polyurethane manufacturers in China already have a lot of products comparable to that of large foreign polyurethane manufacturers.

Polyetheramine T Series

Product Name T-5000 T-3000 T-403
Apperance Colorless to pale yellow transparent liquid
Molecular Weight 5000 3000 440
Color (Pt-Co/APHA) ≤50 ≤60 ≤50
Primary Amine ≥97% ≥97% ≥90%
Amine Value 0.50-0.57 0.90-0.98 6.10-6.80
Water Content ≤25% ≤25% ≤25%

Polyetheramine D Series

Product Name D-2000 D-400 D-230
Apperance Colorless to pale yellow transparent liquid
Molecular Weight 2000 400 230
Color (Pt-Co/APHA) ≤25 ≤50 ≤25
Primary Amine ≥97% ≥97% ≥97%
Amine Value 0.95-1.05 mmol/g 4.10-4.70 mmol/g 8.10-8.70 mmol/g
Water Content ≤0.25% ≤0.25% ≤0.25%

Polyether Polyurethane Market Demand

At present, China polyether polyol is dominated by soft foam and rigid foam market. In 2017, China’s soft foam polyether polyol consumption is about 1 million. China’s auto production has been growing rapidly in recent years, and the demand for soft PU foam applied to cars will grow rapidly as the production of cars increases. In the next few years, the building insulation technology of hard foam will become the fastest consumption area in the PU industry.

Polyurethane material has penetrated into many areas. As one of its raw materials, polyether polyol has been widely valued by people. The development of new products has become an urgent problem for manufacturers. Especially the synthesis of environment-friendly polyurethane. Therefore, polyether polyols have good development.

IRO Coating Additive Co,.Ltd, founded in 2009, is a company specializing in coating additives. As a China coating additives manufacturer, the quality of polyurethane (PU) products has been confirmed by many clients.  For more details, click here.

2017-12-29T06:31:48+00:00 December 29th, 2017|
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