Magnelium base layer-shaped double-hydroxide ultraviolet barrier material used in anti-aging asphalt

A technology of double hydroxide and UV blocking, which is applied in the preparation of aging-resistant asphalt, and in the field of magnesium-aluminum-based double hydroxide UV-blocking materials for aging-resistant asphalt, which can solve the problems of poor UV aging resistance and improve the anti-aging UV aging performance, lower pass rate, good UV barrier effect
CN102180614BActive Publication Date: 2012-08-01BEIJING UNIV OF CHEM TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2012-08-01

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Abstract

The invention relates to a method for preparing a magnelium base layer-shaped double-hydroxide ultraviolet barrier material used in anti-aging asphalt and use thereof in preparation of anti-aging asphalt. The preparation method can control the synthesis of the grain size and laminate thickness of the magnelium base layer-shaped double-hydroxide ultra-violet barrier material. The inorganic laminate of the magnelium base layer-shaped double-hydroxide ultra-violet barrier material prepared by the method can play a physical shield role to the ultraviolet rays. Metal elements and interlayer anions on the laminate can play a chemical absorption role to the ultraviolet rays. The ultraviolet rays can reflect and refract for multistages on a laminate interface when passing the multi-stage laminates; and multi-stage absorption occurs on the laminate and interlayers, which plays a role in blocking the ultraviolet rays. Due to the multi-stage multiple chemical absorption and physical shielding effect, the material has good ultraviolet blocking effect, and remarkably improves the ultraviolet aging resistance of asphalt when the material is used for preparing the anti-aging asphalt.
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Description

Technical field:

[0001] The invention belongs to the technical field of preparation of inorganic functional materials and ultraviolet aging-resistant asphalt, in particular to a magnesium-aluminum-based layered double hydroxide ultraviolet barrier material for aging-resistant asphalt, which is applied to the preparation of aging-resistant asphalt to improve asphalt UV aging resistance. technical background:

[0002] As an important building material, asphalt is widely used in road construction, waterproofing materials and other fields. However, asphalt has poor UV aging resistance, and UV aging can easily cause damage to the molecular structure of asphalt, which in turn leads to cracks, rutting, potholes, spalling and other diseases on the asphalt pavement, which seriously affects the performance, service life and road safety of the asphalt pavement; Bitumen waterproof material becomes hard and brittle under the action of ultraviolet rays, and it is difficult to adapt to th...

Claims

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