Cardanol polyether polyol and use thereof

A technology of cardanol polyether and polyol, applied in the field of polyether polyol, can solve problems such as refreshing records, and achieve the effects of good water resistance and good dimensional stability

Inactive Publication Date: 2012-09-12
常熟耐素生物材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to its many advantages, polyurethane has developed extremely rapidly. As an important component of polyurethane, polyether polyol has also been developed. Many of them are prepared by reacting polyols or organic amines with propylene oxide and ethylene oxide as initiators. Polyether pol

Method used

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  • Cardanol polyether polyol and use thereof
  • Cardanol polyether polyol and use thereof
  • Cardanol polyether polyol and use thereof

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Embodiment Construction

[0022] The properties of the polyether polyol of the present invention will be specifically described below in conjunction with the mass ratio of raw materials used in the synthesis process of the polyether polyol of the present invention.

[0023] Its synthesis process is:

[0024] 1. Add 50%-99% cardanol, 100-150 kg and 45-106 kg of diethanolamine or a mixture of diethanolamine and monoethanolamine to the heat preservation and pressurized reaction kettle, purging with nitrogen, sealing, heating and stirring until 85 -145°C.

[0025] 2. Add 10-30 kg of 55% (weight) formaldehyde solution dropwise into the reactor through a pressurized tank. The feeding speed is subject to the temperature of the reactor being controlled at 85-145°C. The entire feeding process takes 10-150 minutes , after the feeding is completed, continue to keep warm for half an hour to 3 hours, and the temperature is controlled at 120-145°C.

[0026] 3. Vacuum at 102-123°C, reduce the moisture to 0.30%-0.50...

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Abstract

The invention relates to cardanol polyether polyol and a use thereof. The cardanol polyether polyol comprises cardanol aminal-based polyethylene oxide/propylene oxide polyether polyol and has a hydroxyl value of 220 to 550 and viscosity less than 4500CPS. The cardanol polyether polyol is environmentally friendly. Compared with other phenol-based Mannich polyols, the cardanol polyether polyol has specific physical and chemical properties, and can be used for preparation of polyurethane foam materials such as flame-retardant materials, energy-absorbing semi-rigid foam materials, high-resilience foam materials, polyurethane coatings and other polyurethane elastomeric materials.

Description

technical field [0001] The invention relates to a polyether polyol, in particular to a cardanol polyether polyol and its application. Background technique [0002] Due to its many advantages, polyurethane has developed extremely rapidly. As an important component of polyurethane, polyether polyol has also been developed. Many of them are prepared by reacting polyols or organic amines with propylene oxide and ethylene oxide as initiators. Polyether polyols have been well developed, but traditional polyether polyols are basically derived from petrochemical derivatives and their reactions. With the increasing demand for non-renewable resources such as petroleum and The resource itself is depleted, and the price of oil continues to set new records. At the same time, as people's awareness of renewable resources gradually increases, some vegetable oils derived from natural sources are more and more paid attention to as substitutes for petroleum derivatives. [0003] As a natural...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08G18/48C08J9/08C09D5/08C09D175/08
Inventor 邵新明
Owner 常熟耐素生物材料科技有限公司
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