Method for preparing composite wood and composite wood

A composite material and polymer technology, which can be used in the field of preparing composite materials with light stability, and can solve the problems of light stability of polymer products and other problems.
CN106589574AInactive Publication Date: 2017-04-26FDC LEES CHEM IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FDC LEES CHEM IND
Publication Date
2017-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for preparing composite wood comprises the following steps: a polymer and an additive composite are mixed to form a mixture, wherein the additive composite comprises a component with a polyisocyanate group and a hindered amine component with a reaction functional group, and the reaction functional group in the hindered amine component with the reaction functional group comprises at least one of the following groups as follows: hydroxyl, a thiol group and amino; the component with the polyisocyanate group and the hindered amine component with the reaction functional group in the mixture are subjected to an addition reaction.
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Description

technical field

[0001] The invention relates to a method for preparing a composite material, in particular to a method capable of preparing a composite material with light stability. Background technique

[0002] Among polymer materials, polyolefin has better chemical resistance and mechanical properties, and has become a widely used polymer material. However, polyolefins are easily affected by light during processing or use of finished products made of polyolefins, resulting in deterioration problems such as yellowing, aging, or embrittlement.

[0003] US Patent Publication No. 6051164 discloses a method of making stable polymer articles. The method comprises the following steps: mixing a polymer material, an ortho hydroxytris-aryl triazine light absorber, and a hindered amine light stabilizer (hinderedamine light stabilizers) with a molecular weight above 500, The weight ratio of the hindered amine light stabilizer to the o-hydroxyl-triaryl triazine light absorber ranges...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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