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Hydrophilic polyvinylidene fluoride composite material and preparation method thereof

A technology of polyvinylidene fluoride and polyvinylidene fluoride resin is applied in the field of hydrophilic polyvinylidene fluoride composite material and its preparation, and achieves the effects of high porosity, improved surface roughness and enhanced strength

Inactive Publication Date: 2012-03-21
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a hydrophilic polyvinylidene fluoride composite material and its preparation method, to overcome the current hydrophilicity of polyvinylidene fluoride; to improve the antifouling and antibacterial properties of polyvinylidene fluoride; and to propose The production process of hydrophilic polyvinylidene fluoride material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Composition and content composition: polyvinylidene fluoride resin 94%, polymethyl methacrylate 5%, nano AI 2 o 3 Granules 0.5%, sodium dodecylsulfonate 0.5%, the amount of the above materials is by weight.

[0027] (2) Pretreatment of raw materials: Stir the various prepared raw materials in a stirring mixer at high speed for 3 minutes, and then stir at low speed until they are evenly mixed.

[0028] (3) Blending modification: a high-speed internal mixer with a rotational speed of 70 rpm was used for blending modification, wherein the set temperature of the internal mixer was 180° C., and internal mixing was performed for 3 minutes.

Embodiment 2

[0030] (1) Composition and content composition: 79% of polyvinylidene fluoride resin, 20% of polymethyl methacrylate, 0.5% of nano-SiO2 particles, 0.5% of polyethylene glycol, and the amount of the above materials is by weight.

[0031] (2) Pretreatment of raw materials: Stir the various prepared raw materials in a stirring mixer at high speed for 3 minutes, and then stir at low speed until they are evenly mixed.

[0032] (3) Blending modification: a high-speed internal mixer with a rotational speed of 70 rpm was used for blending modification, wherein the set temperature of the internal mixer was 190° C., and internal mixing was carried out for 3 minutes.

Embodiment 3

[0034] (1) Composition and content composition: 80% of polyvinylidene fluoride resin, 18.5% of polymethyl methacrylate, 1% of nano-SiO2 particles, 0.5% of sodium dodecylsulfonate, and the amount of the above materials is by weight.

[0035] (2) Pretreatment of raw materials: Stir the various prepared raw materials in a stirring mixer at high speed for 3 minutes, and then stir at low speed until they are evenly mixed.

[0036] (3) Blending modification: a high-speed internal mixer with a rotational speed of 70 rpm was used for blending modification, wherein the set temperature of the internal mixer was 200° C., and internal mixing was carried out for 4 minutes.

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PUM

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Abstract

The invention discloses a hydrophilic polyvinylidene fluoride composite material and a preparation method thereof. The hydrophilic polyvinylidene fluoride composite material includes, by weight, 70% to 95% of polyvinylidene fluoride resin, 5% to 30% of polymethylmethacrylate, 0.5% to 1.5% of nano particles and 0.5% to 1.5% of surfactant, and the sum of the weight percentages of the above components is 100%. By the aid of the hydrophilic polyvinylidene fluoride composite material and the preparation method, hydrophily of polyvinylidene fluoride is improved, film products produced by the polyvinylidene fluoride and disposed in water have excellent anti-fouling and anti-bacterial property. The preparation method of the hydrophilic polyvinylidene fluoride composite material adopting blending modification is simple in process, convenient in operation and easy to be industrialized.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a hydrophilic polyvinylidene fluoride composite material and a preparation method thereof. Background technique [0002] Polyvinylidene fluoride resin has the characteristics of both fluororesin and general-purpose resin. In addition to good chemical corrosion resistance, high temperature resistance, and weather resistance, it also has special properties such as piezoelectricity and electric heating. According to this polyvinylidene fluoride resin Vinyl fluoride has been widely used in many fields. [0003] In recent years, polyvinylidene fluoride membranes are often used in membrane separation technology because of their good film-forming properties and excellent membrane properties, especially in water resource utilization and environmental protection. However, the molecular structure of polyvinylidene fluoride membrane contains -C-F bond with high bond energy, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L33/12C08K3/22C08K3/36C08K3/34
Inventor 徐东徐永潘明熙
Owner SHENZHEN KEJU NEW MATERIAL
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