A kind of cerium-phosphorus complex flame retardant, cerium-phosphorus complex flame retardant polycarbonate composite material and their preparation method

A technology of flame-retardant polycarbonate and composite materials, applied in chemical instruments and methods, compounds of group 5/15 elements of the periodic table, organic chemistry, etc., can solve the problem of discounting the practical performance and application fields of polymer materials, and destroying polymerization The physical and mechanical properties of the material, increasing the workload of compound selection and addition, etc., to achieve the effect of inhibiting the formation of molten droplets and the overflow of toxic fumes, the preparation and processing methods are simple and easy, and the effect of avoiding secondary fires and secondary injuries
CN110591150BActive Publication Date: 2021-05-07NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
Publication Date
2021-05-07

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Abstract

The invention relates to a cerium-phosphorus complex flame retardant, a cerium-phosphorus complex flame-retardant polycarbonate composite material and a preparation method thereof, belonging to the technical field of polymer materials. The cerium-phosphorus complex flame retardant of the present invention comprises cerium nitrate hydrate and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO); the preparation method comprises: dissolving DOPO in In DMF, solution A is prepared, cerium nitrate hydrate is dissolved in deionized water to prepare solution B; solution B is added to solution A, and then hydrothermal reaction and dehydration treatment are performed. The cerium-phosphorus complex flame-retardant polycarbonate composite material of the present invention comprises 1-20wt% cerium-phosphorus complex and 80-99wt% polycarbonate; the preparation method comprises: separately cerium-phosphorus complex and polycarbonate Dry, premix and then melt blend. The flame retardant of the cerium-phosphorus complex of the invention has good dispersibility, can realize the flame retardant effect by utilizing the condensed phase mechanism and the gas phase mechanism at the same time, has a simple preparation method for the composite material, and has good flame retardant performance.
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Description

Technical field

[0001] The present invention belongs to the technical field of polymer materials, and more particularly to a cerium-phosphorus compound flame retardant, a cerium-phosphorus compound flame retardant polycarbonate composite material and the preparation method of the two.Background technique

[0002] Bisphenol A-type polycarbonate (PC) is the most widely used commodity engineering plastic in a carbonate polymer, high transparency, better thermal stability, excellent mechanical properties, dimensional stability, and fatigue resistance. , Weather resistance and electrical characteristics. The PC itself has a certain flame retardant ability, and once it encounters high temperature or open fire in processing, molding, transportation, use, etc., it will thermally oxidize degradation or violent burning, and will release the use of rich poisonous fumes, destroy the use of materials. Performance and appearance, the fire caused by this type of article also causes a lot of casualties, ...

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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