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High-concentration white master batch for polyvinylidene fluoride (PVDF) films and production method thereof

A polyvinylidene fluoride and polyvinylidene fluoride resin technology, applied in the field of high-concentration white masterbatch, can solve the problems of poor film forming, weak covering power, poor dispersibility, etc., and achieve good film forming, strong covering power, pigment high concentration effect

Inactive Publication Date: 2014-09-24
SHANGHAI HUAYI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is that in the prior art, polyvinylidene fluoride (PVDF) film white masterbatch pigment concentration is lower, dispersibility is poorer, hiding power is weaker and fluidity under the condition of high-concentration pigment proportioning, To solve the problem of poor film-forming properties, provide a new high-concentration white masterbatch for polyvinylidene fluoride films

Method used

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  • High-concentration white master batch for polyvinylidene fluoride (PVDF) films and production method thereof
  • High-concentration white master batch for polyvinylidene fluoride (PVDF) films and production method thereof
  • High-concentration white master batch for polyvinylidene fluoride (PVDF) films and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Preparation of 100 kg polyvinylidene fluoride (PVDF) film with high concentration white masterbatch

[0017] 1. The weight of each component is:

[0018]

[0019] 2. Preparation method

[0020] Add the above-mentioned components into the multi-dimensional motion mixer at one time, mix for 15 minutes, and then send the mixed materials into the twin-screw extruder with vacuum exhaust function, and the screw speed of the extruder is 90r / min, barrel and die temperature 60-220 ℃, vacuum exhaust vacuum gauge pressure -0.05MPa under the conditions of mastication, extrusion, cooling, drying and pelletizing to obtain a 30% color concentration that can be applied to direct film formation. High-concentration white masterbatch for polyvinylidene fluoride (PVDF) film with 1% thermal weight loss greater than 330°C.

[0021] 3. Film-forming property verification

[0022] The high-concentration white masterbatch for polyvinylidene fluoride (PVDF) film prepared above is directly ...

Embodiment 2

[0025] Preparation of 100 kg polyvinylidene fluoride (PVDF) film with high concentration white masterbatch

[0026] 1. The weight of each component is:

[0027]

[0028] 2. Preparation method

[0029] Add the pigment coating agent and polymer dispersant to the stirring mixer and mix evenly, then put them into the automatic feeder with weighing scale, and add the pigment titanium dioxide, pigment zinc oxide and barium sulfate mixture and PVDF resin respectively Put them into their own automatic feeders with weighing scales, set the automatic feeding linkage rate according to the weight ratio of the appeal formula, and feed them into the twin-screw extrusion granulator with vacuum exhaust function. The speed is 200r / min, the barrel and die temperature is 60-220℃, and the vacuum exhaust vacuum gauge pressure is -0.05MPa. Under the conditions of plasticizing, extrusion, cooling, drying and pelletizing, 75% color concentration and 1% thermal weight loss can be obtained. High-c...

Embodiment 3

[0034] Preparation of 100 kg polyvinylidene fluoride (PVDF) film with high concentration white masterbatch

[0035] 1. The weight of each component is:

[0036]

[0037] 2. Preparation method

[0038] Add the pigment coating agent and polymer dispersant to the stirring mixer and mix evenly, then put them into the automatic feeder with weighing scale, and add the pigment titanium dioxide, pigment zinc oxide and barium sulfate mixture and PVDF resin respectively Put them into their own automatic feeders with weighing scales, set the automatic feeding linkage rate according to the weight ratio of the appeal formula, and feed them into the twin-screw extrusion granulator with vacuum exhaust function. The speed is 50r / min, the barrel and die temperature is 60-220°C, and the vacuum exhaust vacuum gauge pressure is 0MPa. Under the conditions of plasticizing, extrusion, cooling, drying and pelletizing, 80% color concentration and 1% heat loss are greater than 330. ℃ high concentr...

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Abstract

The invention relates to a high-concentration white master batch for polyvinylidene fluoride (PVDF) films and a production method thereof, and mainly solves the problems of lower pigment concentration, poor dispersity and lower covering power in the white master batch for PVDF films, and the problems of poor flowability and poor film-forming property under high-concentration pigment proportioning conditions in the prior art. The high-concentration white master batch for PVDF films comprises the following components in percentage by weight: 30-80% of white pigment, 5-35% of dispersing agent, 0.1-5% of pigment organic coating agent and 5-52% of PVDF resin. The technical scheme well solves the problems, and the production method can be used for producing the high-concentration white master batch for PVDF films.

Description

technical field [0001] The invention relates to a high-concentration white masterbatch for polyvinylidene fluoride film and a production method thereof. Background technique [0002] Due to the hydrophobic properties of the fluorine-containing plastic polyvinylidene fluoride (PVDF) material itself, it is difficult for inorganic pigments such as titanium dioxide to be well compatible with and dispersed in it, so only a few foreign companies in the market have the production and sales of polyvinylidene fluoride (PVDF). Vinyl fluoride (PVDF) white masterbatch, the white pigment concentration is generally within 30%, and the price is expensive. However, the 25-micron single-layer polyvinylidene fluoride (PVDF) film used in the field of solar cell composite backsheet film in the new energy industry needs to add more than 15% of white pigments to ensure the effective covering of the film; In the manufacture of high-quality multi-layer co-extruded polyvinylidene fluoride (PVDF) fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08K3/22C08K3/30C08K3/34C08J3/22B29C47/92B29C48/92
CPCB29B7/7461B29B9/12B29C47/0071B29B7/46B29B9/06B29C47/92B29B7/72B29C47/0021B29C2947/92647B29C48/08B29C48/14B29C48/40B29C48/92B29C2948/92514B29C2948/9259B29C2948/92647B29C2948/92704B29C2948/92895
Inventor 陈朝泉郑昀顾建华吴梓新张怡揭元萍张春雷
Owner SHANGHAI HUAYI GRP CO
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