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Biaxially oriented polypropylene high-modulus film master batch and production process thereof

A biaxially oriented, polypropylene technology, applied in the field of masterbatch for biaxially oriented polypropylene high-modulus film, can solve the problems of increasing secondary production process, easy thermal and oxygen aging and discoloration, increasing production cost, etc., to save Production process, the effect of reducing the high temperature friction coefficient and improving the stiffness

Inactive Publication Date: 2015-06-03
SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stiffening masterbatch produced by this method can maintain high transparency in a short period of time, but it is prone to thermal oxygen aging and discoloration during the stretching film forming process and the later use process as a cigarette film, which affects the appearance of the product
Chinese invention patent application CN102153810A discloses a PP film stiffening agent. The PP film stiffening agent produced by this method is extruded after mixing 50% polypropylene, 49.5% C5 petroleum resin, and 0.5% antioxidant, wherein C5 Petroleum resin mainly endows the film with better thermal stability and smoothness, and has little effect on the increase of the stiffness of the film. Moreover, it is necessary to add a variety of functional additives again when stretching the film, which increases the secondary production process and increases the increased production costs

Method used

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  • Biaxially oriented polypropylene high-modulus film master batch and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 55wt% homopolypropylene (2020S produced by Formosa Plastics Ningbo, melt flow rate 3g / 10min, Vicat softening point 150°C), 40wt% C9 hydrogenated petroleum resin (R-1125 produced by Eastman, USA, Ring and ball softening point 125°C), 0.2wt% antioxidant 1010, cage polysilsesquioxane 4.8wt% put in the mixer and stir for 10min, then put the mixture into the hopper of the extruder, extrude The temperature of each section of the machine is between 170 and 210°C, and the screw speed is 150 r / min. After the melt is extruded, it is cooled and formed in the water tank, and it is drawn to the pelletizer for pelletizing and drying.

[0034] The physical and chemical properties of the prepared masterbatch are shown in Table 1.

Embodiment 2

[0036] Weigh 55wt% of polypropylene (2020S produced by Formosa Plastics Ningbo, with a melt flow rate of 3g / 10min and a Vicat softening point of 150°C), 44.3wt% of C9 hydrogenated petroleum resin (R-1125 produced by Eastman, Global softening point 125°C), 0.2wt% antioxidant 1010, 0.5wt% cage polysilsesquioxane, put them in the mixer and stir for 10 minutes, then put the mixture into the hopper of the extruder, and the extruder The temperature of each section is between 170 and 210°C, the screw speed is 150r / min, the melt is extruded and cooled in the water tank for molding, and then pulled to the pelletizer for pelletizing and drying.

[0037] The physical and chemical properties of the prepared masterbatch are shown in Table 1.

Embodiment 3

[0039]Weigh 55wt% of polypropylene (2020S produced by Formosa Plastics Ningbo, with a melt flow rate of 3g / 10min and a Vicat softening point of 150°C), 42wt% of C9 hydrogenated petroleum resin (R-1125 produced by Eastman in the United States, global softening point 125 ℃), 0.2wt% of antioxidant 1010, cage polysilsesquioxane 2.8wt% were placed in the mixer and stirred for 10 minutes, then the mixture was put into the hopper of the extruder, and each extruder The temperature of the section is between 170 and 210°C, the screw speed is 150r / min, the melt is extruded, cooled and formed in the water tank, and then pulled to the pelletizer for pelletizing and drying.

[0040] The physical and chemical properties of the prepared masterbatch are shown in Table 1.

[0041] Table 1 Physicochemical properties of booster stock

[0042]

[0043] The masterbatch prepared in the examples is added to polypropylene to prepare a BOPP film. The film has a three-layer structure. The upper surf...

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Abstract

The invention discloses biaxially oriented polypropylene high-modulus film master batch and a production process thereof. The biaxially oriented polypropylene high-modulus film master batch comprises the following components in percentage by mass: 50-60% of homo-polypropylene, 0-50% of an erectness enhancer, 0.2-1.0 of an antioxidant, 0.5-5% of cage-shaped polyhedral oligomeric silsesquioxane with a grain size of 0.5-10nm. According to the biaxially oriented polypropylene high-modulus film master batch disclosed by the invention, hydrogenated petroleum resin and the cage-shaped polyhedral oligomeric silsesquioxane cooperatively enhance the erectness, so that the erectness of the BOPP film is effectively improved; meanwhile, the BOPP film has the characteristics of low haze and high glossiness, can meet the using requirements of high-speed automatic packaging equipment, and is positive in practical significance.

Description

technical field [0001] The invention relates to a masterbatch for a biaxially stretched polypropylene high modulus film and a production process thereof. Background technique [0002] Biaxially oriented polypropylene film (BOPP) is generally a multi-layer co-extruded film, which is obtained by co-extruding polypropylene particles into a sheet, and then stretching in both vertical and horizontal directions. Biaxially oriented polypropylene film has the advantages of light weight, non-toxic, odorless, moisture-proof, high mechanical strength, good dimensional stability, good printing performance, and good transparency. It is widely used in food, candy, cigarettes, tea, juice, The packaging of milk, textiles, etc. has the reputation of "Packaging Queen". The wide application, low pollution and protection of forest natural resources make BOPP film a more popular packaging material than paper and polyvinyl chloride (PVC). Its simple and reliable manufacturing process and reason...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L57/02C08K5/134C08K5/549C08J3/22
CPCC08L23/12C08J3/226C08J5/18C08J2323/12C08J2423/12C08K2201/003C08L2201/08C08L2203/16C08L57/02C08K5/1345C08K5/549
Inventor 罗吉江符书臻
Owner SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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