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A transparent permanent antistatic transparent polyvinylidene fluoride composition and its preparation method

A polyvinylidene fluoride and antistatic technology, which is applied in the field of permanent antistatic transparent polyvinylidene fluoride composition and its preparation, can solve the problems of large influence on mechanical properties and optical transparency, large addition amount, etc., and facilitate automation Ease of control, added metering, impact mitigation

Active Publication Date: 2016-03-30
ZHEJIANG JAVA SPECIALTY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional antistatic processing technology filled with conductive materials has a great impact on the chemical properties, mechanical properties and optical transparency of polyvinylidene fluoride due to the large amount of addition. Therefore, it is of great significance to study how to prepare antistatic transparent polyvinylidene fluoride products.

Method used

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  • A transparent permanent antistatic transparent polyvinylidene fluoride composition and its preparation method
  • A transparent permanent antistatic transparent polyvinylidene fluoride composition and its preparation method
  • A transparent permanent antistatic transparent polyvinylidene fluoride composition and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0031] Add 193g of polyvinylidene fluoride, 3g of other additives, 4g of 1-butyl-3-methylimidazole hexafluorophosphate into the Hacker rheometer at 190°C for banburying for 15 minutes at a speed of 50 revolutions per minute, and then extrude through a twin screw It is extruded out of the machine, cut into pellets, dried and packaged. The temperature of each zone of the twin-screw extruder is set at 160℃-190℃. The prepared composition was hot-pressed at 190°C, and its antistatic properties, mechanical properties and light transmittance were measured and analyzed by DSC, TEM and FTIR. The analysis results are shown in the attached drawings.

Embodiment example 2

[0033] Add 189g of polyvinylidene fluoride, 3g of other additives, and 8g of 1-butyl-3-methylimidazole hexafluorophosphate to the Hacker rheometer at 190°C for banburying for 15 minutes at a speed of 50 revolutions per minute, and then extrude through a twin screw It is extruded out of the machine, cut into pellets, dried and packaged. The temperature of each zone of the twin-screw extruder is set at 160℃-190℃. The prepared composition was hot-pressed at 190°C, and its antistatic properties, mechanical properties and light transmittance were measured and analyzed by DSC, TEM and FTIR. The analysis results are shown in the attached drawings.

Embodiment example 3

[0035] Add 177g of polyvinylidene fluoride, 3g of other additives, and 20g of 1-butyl-3-methylimidazole hexafluorophosphate to the Hacker rheometer at 190°C for banburying for 15 minutes at a speed of 50 revolutions per minute, and then extrude through a twin screw It is extruded out of the machine, cut into pellets, dried and packaged. The temperature of each zone of the twin-screw extruder is set at 160℃-190℃. The prepared composition was hot-pressed at 190°C, and its antistatic properties, mechanical properties and light transmittance were measured and analyzed by DSC, TEM and FTIR. The analysis results are shown in the attached drawings.

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Abstract

The present invention relates to a permanent antistatic polyvinylidene fluoride (PVDF) composition and a preparation method thereof. The composition comprises the following components, by weight, 68-99.4% of polyvinylidene fluoride, 0.5-30% of an ionic liquid antistatic agent, and 0.1-2% of other additives. During preparation, polycarbonate, a fluorine-substituted polyolefin additive and an ionic liquid are added to a banbury mixer to carry out melting blending at a temperature of 170-200 DEG C until mixing is uniform, the mixed material processed from the process is subjected to melting extrusion through a twin-screw extruder, and then granulation and drying are performed, wherein extrusion temperatures of various regions of the twin-screw extruder are maintained at a temperature of 160-190 DEG C. The composition has the following advantages that: 1, the product has good transparency and excellent antistatic property, and the antistatic property of the material is less affected by air humidity, and the resulting antistatic property is permanent, 2, the process is simple, processing is convenient, the use amounts of the ionic liquid antistatic agent and other additives are less, and the obtained PVDF composition has excellent mechanical properties, and 3, environmental protection requirements are met, the raw materials have characteristics of no toxicity and no harm, and no toxic element exists with chemical analysis.

Description

Technical field [0001] The invention relates to a permanent antistatic polyvinylidene fluoride composition and a preparation method, in particular to a permanent antistatic transparent polyvinylidene fluoride composition with good transparency, excellent antistatic performance, and meeting environmental protection requirements without the presence of toxic elements and The preparation method. Background technique [0002] PVDF is a crystalline polymer with a glass transition temperature of -39°C, a crystalline melting point of about 170°C, and a thermal decomposition temperature above 316°C. It has excellent mechanical properties, good impact resistance, abrasion resistance and chemical stability. At room temperature, PVDF is not corroded by acids, alkalis, strong oxidants and halogens. It is very stable to organic solvents such as aliphatic hydrocarbons, aromatic hydrocarbons, alcohols and aldehydes. It is used in hydrochloric acid, nitric acid, sulfuric acid and dilute and conc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08K5/3445
Inventor 徐力群周华群
Owner ZHEJIANG JAVA SPECIALTY CHEM CO LTD