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OPS (oriented polystyrene) heat shrinking film and preparation method thereof

A heat-shrinkable film and polystyrene technology, applied in the field of polymer materials, can solve the problems of low strength and toughness, high parameter indicators can not be taken into account, etc., to achieve the effect of good transparency, excellent transparency and toughness, and uniform shrinkage

Active Publication Date: 2014-01-01
JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the currently prepared OPS heat shrinkable film makes up for some defects of the traditional process as a whole, the performance of the obtained OPS product still needs to be improved. Good transparency often has low strength and toughness, and various high parameter indicators cannot be taken into account.

Method used

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  • OPS (oriented polystyrene) heat shrinking film and preparation method thereof
  • OPS (oriented polystyrene) heat shrinking film and preparation method thereof
  • OPS (oriented polystyrene) heat shrinking film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] The OPS heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 80 parts of ordinary polystyrene, 1 part of HANKINS NCP-2, 2 parts of ethylene bisstearamide, 1 part of DBP, 2 parts of PS-802 share.

[0021] Weigh the above-mentioned raw materials in parts by weight; add ordinary polystyrene, HANKINS NCP-2, ethylene bisstearamide, DBP, PS-802 into the reactor at 75°C and stir at 150rpm for 10 minutes; The temperature is raised to 290°C, the pressure is lowered to below 90pa, and the polymer melt is obtained by reacting for 2 hours under these conditions, and then the prepared polymer melt is extruded, pelletized, and dried to obtain OPS polyester chips; the above OPS polyester Slice melt extrusion, die casting, casting sheet winding, biaxial stretching, cooling and shaping, thickness measurement, winding, slitting and rewinding, packaging, and finished products. The melt extrusion temperature is 285° C., the biaxia...

Embodiment 2

[0024] The OPS heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 90 parts of ordinary polystyrene, 5 parts of HANKINS NCP-2, 5 parts of zinc stearate, 3 parts of DBP, and 5 parts of PS-802.

[0025] Weigh the above raw materials in parts by weight; add ordinary polystyrene, HANKINS NCP-2, zinc stearate, DBP, PS-802 into the reactor at 85°C and stir at 200rpm for 20min; raise the temperature in the reactor to As high as 300°C, the pressure drops below 90pa, react under this condition for 3 hours to obtain a polymer melt, then extrude the prepared polymer melt, cut into pellets, and dry to obtain OPS polyester chips; melt the above OPS polyester chips Extrusion, die casting, casting sheet winding, biaxial stretching, cooling and setting, thickness measurement, winding, slitting and rewinding, packaging, and finished products. The melt extrusion temperature is 290° C., the biaxial stretching temperature is 117° C., and...

Embodiment 3

[0028] The OPS heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 85 parts of ordinary polystyrene, 3 parts of HANKINS NCP-2, 3 parts of high melting point paraffin or butyl stearate, 2 parts of DBP, PS -802 3 copies.

[0029] Weigh the above raw materials in parts by weight; add ordinary polystyrene, HANKINS NCP-2, high melting point paraffin, DBP, PS-802 into the reactor at 80°C and stir at 175rpm for 15min; raise the temperature in the reactor To 295°C, the pressure drops below 90pa, react under this condition for 2.5h to obtain a polymer melt, then extrude the prepared polymer melt, cut into pellets, and dry to obtain OPS polyester chips; melt the above OPS polyester chips Extrusion, die casting, casting sheet winding, biaxial stretching, cooling and setting, thickness measurement, winding, slitting and rewinding, packaging, and finished products. The melt extrusion temperature is 286°C, the biaxial stretching t...

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Abstract

The invention discloses an OPS heat shrinking film which is mainly prepared by raw materials in parts by weight as follows: 80-90 parts of polystyrene, 1-5 parts of auxiliary, 2-5 parts of a lubricating agent, 1-3 parts of a plasticizer and 2-5 parts of an antioxidant. The invention further discloses a preparation method of the OPS heat shrinking film. The OPS heat shrinking film is good in transparency, uniform in shrinkage and environment-friendly, and through controlling of processing parameters of preparation, the OPS heat shrinking film with a high shrinking rate higher than 80% is obtained finally; and further, by virtue of good transparency, good toughness and recoverability, the OPS heat shrinking film is very suitable for external packing of the fields of food, electron, machinery and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an OPS heat-shrinkable film and a preparation method thereof. Background technique [0002] OPS (Oriented Polystyrene) heat-shrinkable film is a new type of OPS heat-shrinkable film packaging material that meets environmental protection requirements. OPS heat-shrinkable film has high strength, high rigidity, stable shape, and good gloss and transparency. It is easy to process, easy to color, good printing performance, and has extremely high printing resolution. It is a material improvement for trademarks that are constantly pursuing exquisite printing. Due to the high shrinkage rate and strength of OPS film, it can be closely attached to containers of various shapes, so it can not only print exquisite patterns, but also meet the use of various novel packaging containers with different shapes. This non-toxic, odorless, grease-resistant, and food-hygienic fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K5/098C08K5/20C08K5/12C08K5/101
Inventor 王向东
Owner JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD