Production method of bio-based solvent-free polyurethane

A solvent-free polyurethane and production method technology, which is applied in the field of polyurethane production, can solve problems such as reduced production efficiency and impact on production needs, and achieve the effects of improving quality, increasing reaction speed, and improving the degree of fineness

Pending Publication Date: 2020-05-12
福建成杰高分子材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the performance of polyurethane products can be adjusted in a wide range, strong adaptability, biological aging resistance, and moderate price. The production efficiency of bio-based polyurethane is reduced, which affects normal production needs.

Method used

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Embodiment Construction

[0017] The technical solutions in the content of the present invention will be clearly and completely described below in conjunction with the content of the present invention. Obviously, the described content is only a part of the content of the present invention, not the entire content. Based on the contents of the present invention, all other contents obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] The invention provides a production method of bio-based solvent-free polyurethane, comprising the following steps:

[0019] S1: Add bio-based polymer, polycaprolactone, amino acid diisocyanate, processing agent, auxiliary agent and auxiliary materials into the reaction kettle, stir evenly to obtain a mixture;

[0020] S2: Test the obtained mixture, filter and package it after passing the test, and store it separately according to the quantity.

[0021] Specifically, the viscosity of...

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PUM

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Abstract

The invention discloses a production method of bio-based solvent-free polyurethane. The method comprises the following steps: S1, adding a bio-based polymer, polycaprolactone, amino acid diisocyanate,a processing agent, an auxiliary agent and an auxiliary material into a reaction kettle, and uniformly stirring to obtain a mixture; and S2, detecting the obtained mixture, carrying out filtering packaging the qualified product after inspection, and carrying out sub-packaging storage by weight, wherein the viscosity of the bio-based polymer is less than 3000 mPa.S, the bio-based raw material hasthe content of greater than 60%, is prepared by mixing any one or more than two of Sovermol1092, Sovermol810 and Sovermol760 according to any ratio, and does not contain a solvent, the amino acid diisocyanate is lysine diisocyanate or L-lysine diisocyanate and is a degradable non-toxic material, and the processing agent comprises a cross-linking agent and a chain extender. According to the production method of the bio-based solvent-free polyurethane, the reaction effect and the efficiency can be improved, and the overall quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of polyurethane production, and in particular relates to a production method of bio-based solvent-free polyurethane. Background technique [0002] Polyurethane is the abbreviation of polyurethane, and its English name is polyurethane, which is a kind of polymer material. Polyurethane is a new organic polymer material, known as "the fifth largest plastic", and is widely used in many fields of national economy because of its excellent performance. Polyurethane is a polymer material. It is widely used in daily life, such as paints and coatings in furniture, refrigerators and freezers in household appliances, roof waterproof insulation and interior and exterior wall coatings in the construction industry. It can also be made into various polyurethane materials such as polyurethane soles, polyurethane fibers, polyurethane sealants, etc. Generally speaking, polyurethane products have a wide adjustable range of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/78C08G18/66C08G18/42C08G18/40
CPCC08G18/78C08G18/4277C08G18/40C08G18/6644C08G18/6655C08G18/6633
Inventor 黄小平戴启彬黄明珠张嘉栋
Owner 福建成杰高分子材料有限公司
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