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Color master batch for membranes and preparation method of color master batch

A color masterbatch and masterbatch technology, applied in the field of color masterbatch, can solve problems such as reducing the quality of film products and affecting film production, and achieve the effects of maintaining light stability, inhibiting light energy damage, and improving the casting and embossing process.

Inactive Publication Date: 2019-10-08
GUANGDONG ANDELI NEW MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a kind of color masterbatch for film, aiming to solve the technical problem that the existing color masterbatch is added with slip agent or anti-opening agent, etc., which affects the production of film and reduces the quality of film product.

Method used

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  • Color master batch for membranes and preparation method of color master batch

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preparation example Construction

[0036] The present invention also proposes a preparation method of color masterbatch for film, comprising the following steps:

[0037] Dust removal: use compressed air to remove dust from raw materials;

[0038] Mixing: high-speed shear mixing of dust-removed raw materials by high-speed mixer;

[0039] Extrusion molding: use a twin-screw extruder to melt and plasticize the mixed raw materials, and extrude them to form strips;

[0040] Cooling and cutting: After cooling the strips, they are pelletized to obtain masterbatches;

[0041] Screening: put the color masterbatch into a vibrating sieve, retain the color masterbatch with a particle size range of 2-10mm, and obtain the color masterbatch for the film.

[0042] Specifically, the dust removal treatment in the technical solution of the present invention is mainly to prevent the raw materials of the color masterbatch from containing dust impurities, which will pollute the quality of the finished product of the color masterbat...

Embodiment 1

[0050] Dust removal: Weigh 80% of titanium dioxide, 1% of hindered amine light stabilizer, 0.5% of aluminum-titanium composite coupling agent, 0.5% of ultraviolet light absorber and 18% of low-density polyethylene, and compress the above raw materials The air is dedusted;

[0051] Mixing: Use a high-speed mixer to perform high-speed shear mixing on the dust-removed raw materials at a speed of 440rpm;

[0052] Extrusion molding: use the twin-screw extruder to melt and plasticize the mixed raw materials. The temperature of each heating section of the twin-screw extruder is: 125°C in the conveying section, 150°C in the melting section, 170°C in the mixing section, and 170°C in the exhaust section. 190°C, 195°C in the homogenization section and 190°C in the discharge section, the die head temperature of the twin-screw extruder is 190°C, and the raw materials are melted and plasticized to form a melt;

[0053] Cooling and cutting: After cooling the material strips, dry them. The d...

Embodiment 2

[0056] Dust removal: Weigh 70% of titanium dioxide, 0.3% of hindered amine light stabilizer, 1% of aluminum-titanium composite coupling agent, 0.1% of ultraviolet light absorber and 28.6% of low-density polyethylene, and compress the above raw materials The air is dedusted;

[0057] Mixing: Use a high-speed mixer to perform high-speed shear mixing on the dust-removed raw materials at a speed of 725rpm;

[0058] Extrusion molding: use the twin-screw extruder to melt and plasticize the mixed raw materials. The temperature of each heating section of the twin-screw extruder is: 120°C in the conveying section, 160°C in the melting section, 175°C in the mixing section, and 175°C in the exhaust section. 180°C, 200°C in the homogenization section and 195°C in the discharge section, the die head temperature of the twin-screw extruder is 200°C, and the raw materials are melted and plasticized to form a melt;

[0059] Cooling and cutting: After cooling the strips, they are dried, the dr...

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Abstract

The invention discloses a color master batch for membranes and a preparation method of the color master batch. The color master batch comprises the following components in percentage by weight: 70-80%of titanium dioxide, 0.3-1% of an anti-aging agent, 0.5-1% of a coupling agent, 0.1-0.5% of a light stabilizer and the balance of low density polyethylene. Due to adoption of the titanium dioxide asa pigment, the color master batch has high whiteness and nontransparency. Due to addition of the anti-aging agent, the color master batch is prevented from a rapid aging phenomenon when being used inmembranes. Due to addition of the light stabilizer, the light stability of a product can be maintained, and the color master batch can be prevented from a light oxidation reaction. Due to addition ofthe coupling agent, the aging resistance of the color master batch can be further improved. Due to addition of the low density polyethylene, the titanium dioxide can be wetted and dispersed. The raw materials of the color master batch do not comprise micromolecular easily separated substances such as a slipping agent or a plastic lubricant, so that the color master batch can be prevented from a phenomenon of poor product quality when being applied to membranes, and is capable of well meeting curtain coating embossing processes of membranes, and in addition, a dispersant is not used in the color master batch.

Description

technical field [0001] The invention relates to the technical field of color masterbatch, in particular to a color masterbatch for film and a preparation method thereof. Background technique [0002] Masterbatch is an aggregate formed by adding pigments and other additives based on carrier resin. It has the advantages of good coloring effect, easy measurement and transportation, and no dust pollution. Therefore, it is widely used in biomedicine, industry and agriculture. And other fields, it is also widely used in thin film. [0003] At present, the color masterbatch added to the film mostly uses a dispersant to disperse polyolefin and pigments. The molecular weight of the dispersant is small. The commonly used dispersant is polyethylene wax, etc., which can promote the mixing of titanium dioxide and polyethylene resin, but After the dispersant is added to the film raw material, it will be partially separated out in the subsequent film processing process, which will affect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K5/55C08K3/22C08J3/22C08J5/18B29B9/06
CPCB29B9/06C08J3/226C08J5/18C08J2323/06C08J2423/06C08K5/55C08K13/02C08K2003/2241
Inventor 王毅刚王丹旭蚁树雄邱育渠袁胜
Owner GUANGDONG ANDELI NEW MATERIALS CO LTD
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