Supramolecular structure phenolphtalein or its analog-inserted UV blocking material and preparation method thereof

A technology of molecular structure and UV blocking, applied in the direction of building insulation materials, building components, building structures, etc., can solve the problems of performance degradation, viscosity increase, softening point increase, etc., to improve the absorption strength and anti-ultraviolet aging ability , The effect of enhanced absorption
CN104497358AActive Publication Date: 2015-04-08BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2015-04-08

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Abstract

The invention discloses a supramolecular structure phenolphtalein or its analog-inserted UV blocking material and a preparation method thereof. The preparation method comprises that nitrate-inserted magnesium-aluminum hydrotalcite is used as a precursor, and phenolphtalein or its analog is inserted between layers of the nitrate-inserted magnesium-aluminum hydrotalcite precursor by an ion exchange method so that the phenolphtalein or its analog-inserted magnesium-aluminum hydrotalcite with a good crystal structure and excellent performances is assembled. The supramolecular structure phenolphtalein or its analog-inserted UV blocking material has a 220-400nm band UV blocking rate higher than 95%, has excellent UV blocking performances, widens a UV blocking agent use range, can be used as additives of polymers such as asphalt, plastic and rubber, greatly improves UV-caused ageing resistance and prolongs a service life.
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Description

Technical field:

[0001] The invention belongs to the technical field of inorganic functional materials, and in particular relates to a supramolecular structure phenolphthalein or its analog intercalated ultraviolet blocking material and a preparation method thereof. Background technique:

[0002] Environmental pollution has brought about a substantial increase in ultraviolet rays. The photochemical and biological effects produced by ultraviolet rays are very significant, causing asphalt and other polymer materials to age, resulting in reduced performance, increased viscosity, and increased softening point. Therefore, it is necessary to Research on high-efficiency anti-UV additives. The English name of phenolphthalein is phenolphthalein, abbreviated as PPN. It has good UV blocking performance in the 220-310nm band, and its appearance is pure white powder. It is insoluble in water at room temperature and soluble in NaOH solution. It is a commonly used solution pH indicator. ...

Claims

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