Pure vegetable oil based polyalcohol and preparation method thereof

An oil-based polyol and pure plant technology, which is applied in the field of pure vegetable oil-based polyol and its preparation, can solve problems that have not been seen yet, and achieve the effects of simple preparation method, rich source of raw materials, and wide application range

Inactive Publication Date: 2013-05-22
SHANGHAI MEDICINES & HEALTH PROD IMPORT & EXPORT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Pure vegetable oil based polyalcohol and preparation method thereof
  • Pure vegetable oil based polyalcohol and preparation method thereof
  • Pure vegetable oil based polyalcohol and preparation method thereof

Examples

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Embodiment 1

[0054]

[0055] The above-mentioned components are fed, and under the protection of nitrogen, the temperature is raised to 240°C for 7 hours (about 110 g of water). Turn off the nitrogen, vacuum, heat up to 260°C and react for 4 hours (about 85 grams of water and some oily substances are produced). After cooling, about 2130g of product is obtained. The hydroxyl value of the product is about 260mgKOH / g.

Embodiment 2

[0057]

[0058] The above components (except the epoxy soybean oil) are charged, and the temperature is raised to 250°C for 9 hours under the protection of nitrogen (about 410 grams of water output). Cool slightly, turn off the nitrogen, vacuumize, add epoxy soybean oil, and heat up to 220°C for 3 hours. After cooling, about 2400g of product is obtained. The hydroxyl value of the product is about 460mgKOH / g.

Embodiment 3

[0060] Epoxy Linseed Oil 1600g

[0061] Tetraglycerol 532g

[0062] KOH 1.3g

[0063] Feed the above components, under the protection of nitrogen, heat up to 220°C for 3 hours (turn off the nitrogen, vacuum, heat up to 230°C and react for 3 hours (about 13 grams of water and oily substances). Cool and get The product is about 2120g. The hydroxyl value of the product is about 230mgKOH / g.

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Abstract

The invention relates a pure vegetable oil based polyalcohol and a preparation method thereof. The vegetable oil based polyalcohol is characterized in that the hydroxyl value is 200 mgKOH/g-700 mgKOH/g; the vegetable oil based polyalcohol mainly is prepared from the materials consisting of vegetable oil, glycerol, fatty acid or corresponding derivatives. The materials are reacted under the protection of inert gases, reacted under vacuum and cooled to obtain the pure vegetable oil based polyalcohol product. According to the pure vegetable oil based polyalcohol and the preparation method disclosed by the invention, the performance characteristics of each structural unit in the vegetable oil are sufficiently utilized, so that the prepared pure vegetable oil based polyalcohol not only has the characteristics of the pure vegetable oil base, but also can be widely applied to the preparation of polyurethane materials.

Description

Technical field [0001] The invention relates to a pure vegetable oil-based polyol and a preparation method thereof. Background technique [0002] Polyurethane material has excellent performance, wide range of applications, and a wide range of products. It is widely used in the production of a variety of materials, such as foam, plastics, fibers, adhesives and sealants, etc. Specific application areas include refrigerators, cold storage, building insulation, furniture, clothing, automobiles, coatings, chemical fibers, plastics, adhesives and other industries. [0003] However, in the process of producing polyurethane, because traditional polyether polyols are restricted by the limitation of petroleum resources, non-renewability and greater ecological pollution, vegetable oil polyols with environmental protection and resource renewability characteristics It is getting more and more attention and application. [0004] In October 2005, the "Polyurethane Technology Seminar and Trade Pro...

Claims

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Application Information

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IPC IPC(8): C08G18/67C08G18/36
Inventor 蒋震伟严万春汤小群蒋伟萍
Owner SHANGHAI MEDICINES & HEALTH PROD IMPORT & EXPORT CO LTD
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