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Thin film master batch with low-precipitation and yellowing-resisting special functions and preparation method thereof

A kind of yellowing-resistant and special technology, which is applied in the field of polymer material processing and modification, can solve the problems of product deterioration, darkening, yellowing and other problems, and achieve good heat-sealing strength, improved efficiency, and good precipitation resistance. Effect

Inactive Publication Date: 2018-05-01
广东波斯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Plastic packaging materials are prone to problems such as yellowing and darkening when exposed to light or long-term high-temperature storage during use, which directly affects the appearance and image of packaging products, causing consumers to mistakenly think that the product has deteriorated or exceeded the shelf life and other adverse consequences

Method used

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  • Thin film master batch with low-precipitation and yellowing-resisting special functions and preparation method thereof
  • Thin film master batch with low-precipitation and yellowing-resisting special functions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Weighing and batching according to the following formula: 20 parts of low density polyethylene, 5 parts of POP plastic elastomer, 65 parts of titanium dioxide, 3 parts of ethylene-glycidyl methacrylate, 0.5 parts of antioxidant 1790, 0.5 parts of antioxidant 626 1 part, 1 part of UV stabilizer 944, 5 parts of molecular sieve adsorbent.

[0045] The above-mentioned components are pre-mixed uniformly with a mixer, and then mixed with a double-rotor continuous mixing equipment, extruded and granulated to obtain a film masterbatch with special functions of low precipitation and yellowing resistance. The mixing temperature is 170°C and the rotor speed is 600rpm. , the temperature of the extruder is 180° C., and the rotational speed of the main engine is 400 rpm.

[0046] The prepared low-separation and anti-yellowing film masterbatch and linear low-density polyethylene (LLDPE7042) and low-density polyethylene (LDPE 1F7B) are blown at a ratio of 15:75:10, and the blown film t...

Embodiment 2

[0048]Weighing and ingredients according to the following formula: 15 parts of low-density polyethylene, 15 parts of POP plastic elastomer, 45 parts of titanium dioxide, 3 parts of phthalocyanine blue, 5 parts of ethylene-glycidyl methacrylate, 5 parts of antioxidant 1790 , 5 parts of antioxidant 626, 9442 parts of ultraviolet light stabilizer, 5 parts of molecular sieve adsorbent.

[0049] The above-mentioned components are pre-mixed uniformly with a mixer, and then banbury-mixed with a banbury mixer and extruded and granulated with a single-screw extruder to obtain a film masterbatch with special functions of low precipitation and yellowing resistance. The temperature of the extruder is set at 160 °C, 180°C, 180°C, 180°C, the host speed is 400rpm.

[0050] The prepared low-separation and anti-yellowing film masterbatch and linear low-density polyethylene (LLDPE7042) and low-density polyethylene (LDPE 1F7B) are blown at a ratio of 15:75:10, and the blown film temperature is 1...

Embodiment 3

[0052] Weighing and batching according to the following formula: 22 parts of linear low density polyethylene, 10 parts of POP plastic elastomer, 35 parts of titanium dioxide, 2.5 parts of carbon black, 3 parts of ethylene-glycidyl methacrylate, 1 part of antioxidant 1790 , 1 part of antioxidant 627, 2.5 parts of ultraviolet light stabilizer 944, 2.5 parts of external light stabilizer 622, 0.5 part of molecular sieve adsorbent, 10 parts of calcium carbonate, and 10 parts of barium sulfate.

[0053] The above-mentioned components are pre-mixed uniformly with a mixer, and then extruded and granulated with a twin-screw extruder to obtain a film masterbatch with special functions of low precipitation and yellowing resistance. The temperature of the extruder is set at 160°C, 180°C, 180°C, 180°C, host speed 400rpm.

[0054] The prepared low-separation and anti-yellowing film masterbatch and linear low-density polyethylene (LLDPE7042) and low-density polyethylene (LDPE 1F7B) are blown...

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Abstract

The invention discloses thin film master batch with low-precipitation and yellowing-resisting special functions and a preparation method thereof and belongs to the technical field of processing and modification of high molecular materials. The thin film master batch is prepared from the following components in parts by weight: 14 to 60 parts of polyethylene, 5 to 20 parts of a POP (p-tert-octyl phenol) plastic elastomer, 1 to 75 parts of a coloring agent, 0.1 to 5 parts of an antioxidant, 0.1 to 5 parts of an ultraviolet stabilizer, 0.5 to 5 parts of a micro-pore adsorbent, 0.2 to 5 parts of ahigh molecular acid removing agent and 0 to 70 parts of a filling agent. According to the thin film master batch disclosed by the invention, middle and low molecular plasticizers including wax, stearic acid and the like are not added, and low molecular components which are possibly generated in a processing process are removed by adding the porous adsorbent, so that a colored thin film product has good precipitation-resisting performance and can adapt to high-speed heat sealing requirements, and good heat sealing strength is obtained. The thermal oxygen stability of a material is improved through adding the efficient antioxidant and the ultraviolet light ageing performance of the material is improved by adding the ultraviolet stabilizer with high molecular weight, and good yellowing-resisting performance is obtained.

Description

technical field [0001] The invention belongs to the technical field of processing and modification of polymer materials, and particularly relates to a film masterbatch with special functions of low precipitation and yellowing resistance and a preparation method thereof. The film masterbatch has the characteristics of low precipitation, yellowing resistance and coloring. Background technique [0002] Plastic materials have the advantages of low specific gravity, sealing, waterproof, and low cost, and are increasingly used in the packaging field. recent years. With the automation and high-speed development of packaging technology and the intensification of product competition, the requirements for high-speed heat-sealing performance and color stability of films are constantly increasing. [0003] The coloring and appearance of packaging products directly affect the appearance and image of the product, and have a direct impact on product sales. Products packaged with bright w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/04C08K7/26C08K3/22C08K5/3492C08K5/527C08K3/30C08K3/26C08J3/22
CPCC08J3/226C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08K5/3492C08K5/527C08K7/26C08K13/04C08K2003/2241
Inventor 阳范文黎泽顺卢俊文雷周桥刘鹏
Owner 广东波斯科技股份有限公司
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