Polyolefin / polycarbonate alloy film for meltable asphalt packing bag and production method thereof

A polycarbonate and alloy film technology, applied in the field of asphalt packaging bags, can solve the problems of inconvenient construction, low limit temperature, and packaging bags cannot be completely mixed and melted, and achieve the effect of reducing labor intensity and lowering processing temperature

Inactive Publication Date: 2011-01-12
SICHUAN JIANYANG HUASEN FILM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the problems existing in the polymer material asphalt packaging bags of the prior art, the purpose of the present invention is to provide a polyolefin / polycarbonate alloy film and a production method thereof for producing and processing fusible asphalt packaging bags, so as to solve The polymer material asphalt packaging bag material in the prior art has a low limit temperature, and the packaging bag and asphalt cannot be completely mixed and melted, which brings great inconvenience to the construction.

Method used

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  • Polyolefin / polycarbonate alloy film for meltable asphalt packing bag and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Melt kneading: Premix the formula component raw materials determined by the polyolefin / polycarbonate alloy film embodiment for the above-mentioned meltable asphalt packaging bag, and then send the fully mixed raw materials into two parallel sets The extruder is melted and kneaded, and the temperature of the melted kneading is controlled at about 185°C;

[0044] (2) Extrusion of film blanks: After fully kneading and melting, the two parts of the melt enter the machine head in the direction of crossing each other, and the two parts of the melt are brought together in the machine head to form a double melt flow direction crossing each other. Layer-composite melt, the film embryo is extruded from the die mouth of the machine head as a cylindrical melt, and the temperature of the machine head is controlled at about 180°C;

[0045] (3) Blown film forming: The cylindrical melt film embryo extruded from the die of the machine head is blown film by the down-blown film method...

Embodiment 2

[0049] (1) Melt mixing: Premix the raw materials of the formula components determined in the polyolefin / polycarbonate alloy film embodiment for the above-mentioned meltable bitumen packaging bag, and then send the fully mixed raw materials into the double-unit extruder Carry out melt kneading, and the melt kneading temperature is controlled at about 180°C;

[0050] (2) Thin film embryo extrusion: After fully kneading and melting, the two parts of the melt enter the machine head in the direction perpendicular to each other, and the two parts of the melt are brought together in the machine head to form a double melt flow direction perpendicular to each other. Layer-composite melt, the film embryo is extruded from the die mouth of the machine head as a cylindrical melt, and the temperature of the machine head is controlled at about 175°C;

[0051] (3) Blown film forming: The cylindrical melt film embryo extruded from the die of the machine head is blown by the down-blown film met...

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Abstract

The invention discloses a polyolefin / polycarbonate alloy film for fusible asphalt packaging bags, and a production method thereof. The polyolefin / polycarbonate alloy film mainly comprises the following raw material components: polypropylene, polyethylene, polycarbonate, acrylate polymer, dicumyl peroxide, polyethylene wax and antioxidant. A production process of the polyolefin / polycarbonate alloyfilm mainly comprises the following steps of melting, mixing, extruding film blank, blowing and molding film, cooling and setting. The polyolefin / polycarbonate alloy film for the fusible asphalt packaging bags provided by the invention can bear a temperature up to 140 DEG C when the packaging bags are filled with asphalt; when the asphalt is used in construction, the asphalt together with the packaging bags is put into a heating container and stirred for about 15 minutes at a temperature between 160 and 165 DEG C, and then the packaging bags can completely melt in the asphalt without residue;and the own production and processing temperature of the film is only between 170 and 185 DEG C which is far lower than the processing temperature (210 to 250 DEG C in general) of polypropylene, polycarbonate, polyethylene and other base materials.

Description

technical field [0001] The invention relates to the technical field of asphalt packaging bags, in particular to a polymer film for meltable asphalt packaging bags and a production method thereof. technical background [0002] As one of the important products of petrochemical industry, asphalt is widely used in various fields of the national economy such as roads and engineering construction. The largest output is road petroleum asphalt. According to incomplete statistics, the annual output of asphalt in my country is 5-8 million tons, the annual import volume is more than 1 million tons, and the annual consumption is 6-9 million tons. Asphalt is packaged traditionally in iron drums. The disadvantages of using iron drums as asphalt transportation packaging are: firstly, due to the heavy weight of iron drums, it takes up a large amount of transportation space, and the cost of iron drums is relatively high, resulting in high transportation costs; secondly, in the process of u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L69/00C08L33/04C08K5/14C08K5/134C08K5/526B29C55/28
Inventor 陈泉
Owner SICHUAN JIANYANG HUASEN FILM IND
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