Anti-aging and migration resistant plasticized polyvinyl chloride material, preparation method and application thereof

A polyvinyl chloride, migration-resistant technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of plasticizing effect, flexibility, etc., to improve heat resistance and UV resistance, small size, The effect of improving toughness

Active Publication Date: 2017-08-08
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although macromolecular polyester plasticizers can reduce the mobility of plasticizers, the effect on plasticization (such as flexibility) is significantly reduced, and the hardness of the product is significantly higher than that of polyvinyl chloride containing small molecular plasticizers.

Method used

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  • Anti-aging and migration resistant plasticized polyvinyl chloride material, preparation method and application thereof
  • Anti-aging and migration resistant plasticized polyvinyl chloride material, preparation method and application thereof
  • Anti-aging and migration resistant plasticized polyvinyl chloride material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Weigh 0.08mol of nickel chloride, 0.12mol of zinc chloride, 0.1mol of lanthanum chloride and 0.3225mol of urea and dissolve them in deionized water, then sonicate for 30min, transfer them to the autoclave, and then put React in a muffle furnace at 180°C for 12 hours. After the reaction, filter and wash to obtain LDHs powder.

[0043] (2) Weigh 4g of LDHs and 30g of ε-CL into a three-neck flask, ultrasonicate for 30min, heat up to 110°C, add catalyst stannous octoate, N 2 React under protection for 24 hours. After the reaction is over, dissolve the viscous polymer in dichloromethane, filter and wash to remove impurities, precipitate in glacial hexane, wash to remove unreacted monomers, and vacuum at 40°C. Dry for 24h to get LDHs-g-PCL.

[0044] (3) Melt blending LDHs-g-PCL and polyvinyl chloride in a torque rheometer for 15 min at a mass ratio of 20:80 to obtain modified polyvinyl chloride, wherein LDHs-g-PCL and polyvinyl chloride The mass is 30g. Set the tempera...

Embodiment 2

[0047] (1) Weigh 0.19 mol of zinc chloride, 0.1 mol of cerium chloride and 0.3045 mol of urea and dissolve them in deionized water, then sonicate for 30 minutes, transfer them to an autoclave, and then put them into a muffle furnace at 120°C After the reaction was completed for 36 hours, the LDHs powder was obtained by filtering and washing.

[0048] (2) Weigh 0.5g of LDHs and 49.5g of ε-CL into a three-neck flask, ultrasonicate for 20min, heat up to 100°C, add catalyst stannous octoate, N 2 React under protection for 20 hours. After the reaction is over, dissolve the viscous polymer in dichloromethane, filter and wash to remove impurities, precipitate in glacial hexane, wash to remove unreacted monomers, and vacuum at 30°C. Dry for 30h to get LDHs-g-PCL.

[0049] (3) LDHs-g-PCL and polyvinyl chloride were melt-blended in a torque rheometer for 45 minutes at a mass ratio of 5:95 to obtain modified polyvinyl chloride, wherein LDHs-g-PCL and polyvinyl chloride were combined Th...

Embodiment 3

[0052] (1) Weigh 0.2mol of nickel chloride, 0.21mol of cobalt chloride, 0.05mol of lanthanum chloride, 0.05mol of cerium chloride and 0.5355mol of urea and dissolve them in deionized water, then sonicate for 50min and transfer to high pressure The reaction kettle was then put into a muffle furnace at 180° C. to react for 6 hours. After the reaction was completed, it was filtered and washed to obtain LDHs powder.

[0053] (2) Weigh 6g of LDHs and 34g of ε-CL into a three-neck flask, ultrasonicate for 50min, heat up to 140°C, add catalyst stannous octoate, N 2 React under protection for 30 hours. After the reaction, dissolve the viscous polymer in dichloromethane, filter and wash to remove impurities, precipitate in glacial hexane, wash to remove unreacted monomers, and vacuum at 30°C. Dry for 30h to get LDHs-g-PCL.

[0054] (3) Melt blend LDHs-g-PCL and polyvinyl chloride at a mass ratio of 50:50 in a torque rheometer for 10 min to obtain modified polyvinyl chloride, wherein L...

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Abstract

Relating to the field of high polymer materials, the invention provides an anti-aging and migration resistant plasticized polyvinyl chloride material, a preparation method and an application thereof. The preparation method includes: making a divalent metal salt, a trivalent metal salt and a precipitant into a layered dihydroxyl metal oxide by a high temperature hydrothermal process, mixing the layered dihydroxyl metal oxide with epsilon-caprolactone to obtain a reactant, and then carrying out ring-opening polymerization reaction to obtain a modified layered dihydroxyl metal oxide; and subjecting polyvinyl chloride and the modified layered dihydroxyl metal oxide to melt blending, thus obtaining modified polyvinyl chloride. The prepared material shows the outstanding advantages of ultraviolet aging resistance, flexibility and the like, especially inorganic nanoparticles are firmly fixed in the base material, thus restricting the migration of plasticizer molecules, improving the dispersion of inorganic nanoparticles in the base material, and prolonging the service life of polyvinyl chloride material. In addition, the invention also relates to application of the anti-aging and migration resistant plasticized polyvinyl chloride material.

Description

technical field [0001] The invention relates to the field of composite materials, and in particular to an anti-aging and migration-resistant plasticized polyvinyl chloride material and its preparation method and application. Background technique [0002] Since the industrialization of polyvinyl chloride (PVC) in the 1930s, it has been widely used in various fields of production and life due to its good comprehensive properties (good physical and mechanical properties, dielectric properties and flame retardant properties, etc.) . However, polyvinyl chloride is easily degraded and aged under the action of light, heat and oxygen, resulting in deterioration of product performance, showing yellowish color, becoming brittle and hard, and greatly reducing physical properties. In order to extend the service life of polyvinyl chloride, light stabilizers and heat stabilizers must be added in practical applications to slow down the aging rate of polyvinyl chloride as much as possible....

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K9/10C08K3/22C08G63/08H01B3/44
Inventor 毛龙刘跃军姚进吴慧青刘小超陈剑洪
Owner XIAMEN UNIV OF TECH
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