A kind of preparation method of ultra-tough bio-based polyurethane composite material

A composite material and bio-based technology, which is applied in the field of preparation of super-tough bio-based polyurethane composite materials, can solve the problems that restrict the development of polyurethane polymer material industry, achieve good biodegradability, reduce environmental protection costs, and broaden the effect of raw material sources

Active Publication Date: 2022-04-15
GUIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the existence of the above problems, the development of the polyurethane polymer material industry has been greatly restricted.

Method used

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  • A kind of preparation method of ultra-tough bio-based polyurethane composite material
  • A kind of preparation method of ultra-tough bio-based polyurethane composite material
  • A kind of preparation method of ultra-tough bio-based polyurethane composite material

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Embodiment 1

[0030] Example 1. A preparation method of a super-tough bio-based polyurethane composite material, carried out according to the following steps:

[0031] a. Raw material preparation: modify the purified waste oil with peracetic acid and ethylene glycol in sequence to obtain alcoholized oil;

[0032] The purification of waste oil is as follows: the recovered waste oil is sequentially suction filtered, pickled, washed with water, alkali washed, salt washed and activated carbon to remove water;

[0033] The modification of the purified waste oil is as follows: use excessive peroxyacetic acid and ethylene glycol to modify under catalyst conditions; wherein, the catalyst is: the weight accounts for 1% to 10% of the weight of the purified waste oil (most preferably 5%) aluminum chloride; modification conditions are: nitrogen atmosphere, temperature 80-90°C (optimally 85°C), modification time 1-5h (optimally 2h). The modified oil needs to be purified after each modification.

[00...

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Abstract

The invention discloses a preparation method of a super-tough bio-based polyurethane composite material. Carry out according to the following steps: a. modify the purified waste oil with peracetic acid and ethylene glycol in turn to obtain alcoholized oil; b. fully dissolve the toughening agent in a volatile organic solvent to obtain a toughening agent solution; c. Mix alcoholized oil and silicone, place in an oil bath for magnetic stirring, then add toughening agent solution until the organic solvent is completely volatilized, then add crosslinking agent to continue the reaction; after the reaction is completed, the product is solidified to obtain the product. The present invention breaks through the limitation of the traditional single modification on the performance improvement of the polyurethane material, overcomes the pollution of the product by the solvent, the difficulty of material degradation, etc., and realizes the improvement of multiple properties of the polyurethane material. At the same time, by regulating the internal mosaic structure of the polyurethane composite material, A "green" super-tough polyurethane composite material with excellent comprehensive performance is prepared, and a method for preparing a composite material that is environmentally friendly, multifunctional and easy for industrial production is provided.

Description

technical field [0001] The invention relates to the technical fields of coating materials, thermoplastic elastomers and porous materials, in particular to a preparation method of a super-tough bio-based polyurethane composite material. Background technique [0002] As the most widely used polymer material at present, polyurethane can be used in coatings, foams, adhesives, sealants, thermoplastic elastomers, slow-release fertilizers and other fields. At present, the raw materials for polyurethane production mainly come from petroleum resources, and with the depletion of petroleum resources, the cost of raw materials for polyurethane production is gradually increasing, coupled with increasingly severe environmental problems, which further push up the environmental protection cost of petroleum processing, making the final product costs are getting higher and higher. Due to the existence of the above problems, the development of the polyurethane polymer material industry has be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/61C08G18/36C08G18/28C09D175/06
CPCC08G18/6662C08G18/61C08G18/4277C08G18/36C08G18/289C09D175/06
Inventor 熊玉竹王倩罗惠元李宜航
Owner GUIZHOU UNIV
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