PVC (polyvinyl chloride) heat shrinking film and preparation method thereof

A heat-shrinkable film and PVC resin technology, applied to flat products, other household appliances, applications, etc., to achieve uniform shrinkage, simple preparation method, and good transparency

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

Although the PVC heat-shrinkable film prepared at present makes up for some defects of the traditional process as a whole, the performance of the obtained PVC product

Method used

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  • PVC (polyvinyl chloride) heat shrinking film and preparation method thereof
  • PVC (polyvinyl chloride) heat shrinking film and preparation method thereof
  • PVC (polyvinyl chloride) heat shrinking film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The PVC heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 90 parts of SG-5 of Shandong Bohui, 1 part of HANKINS NCP-2, 2 parts of ethylene bisstearamide, and 1 part of adipate 2 parts, ESC-1010 antioxidant 2 parts.

[0020] Weigh the raw materials in the above parts by weight; add SG-5, HANKINS NCP-2, ethylene bisstearamide, adipate, ESC-1010 antioxidant into the reactor at 70°C and stir at 160rpm for 5min ;The temperature in the reactor is increased to 280°C, the pressure is lowered to below 90pa, and the polymer melt is obtained by reacting for 1 hour under this condition, and then the prepared polymer melt is extruded, pelletized, and dried to obtain PVC polyester chips; The above-mentioned PVC polyester chips are melt-extruded, die-cast, cast-rolled, biaxially stretched, cooled and shaped, thickness measured, rolled, slitting and rewinding, packaged, and finished. The melt extrusion temperature is 275° C...

Embodiment 2

[0024] The PVC heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 100 parts of SG-5 of Shandong Bohui, 5 parts of HANKINS NCP-2, 5 parts of glyceryl monostearate, and 3 parts of adipate parts, 5 parts of ESC-1010 antioxidant.

[0025] Weigh the above raw materials in parts by weight; add SG-5, HANKINS NCP-2, glyceryl monostearate, adipate, ESC-1010 antioxidant into the reaction kettle at 80°C and stir at 220rpm for 10min ;The temperature in the reactor is raised to 300°C, the pressure is lowered to below 90pa, and the polymer melt is obtained by reacting for 3 hours under this condition, and then the prepared polymer melt is extruded, pelletized, and dried to obtain PVC polyester chips; The above-mentioned PVC polyester chips are melt-extruded, die-cast, cast-rolled, biaxially stretched, cooled and shaped, thickness measured, rolled, slitting and rewinding, packaged, and finished. The melt extrusion temperature is 2...

Embodiment 3

[0029] The PVC heat-shrinkable film of the present invention is mainly made of the following raw materials in parts by weight: 95 parts of SG-5 from Shandong Bohui, 3 parts of HANKINS NCP-2, 3 parts of stearyl alcohol, 2 parts of adipate, ESC -1010 antioxidant 3 parts.

[0030] Weigh the above raw materials in parts by weight; add SG-5, HANKINS NCP-2, stearyl alcohol, adipate, ESC-1010 antioxidant into the reaction kettle at 75°C and stir at 195rpm for 7min; The temperature in the kettle is raised to 295°C, and the pressure drops below 90pa. Under these conditions, react for 2 hours to obtain a polymerized melt, and then extrude, pelletize and dry the prepared polymerized melt to obtain PVC polyester chips; Polyester chip melt 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 277° C., the biaxial stretching temperatu...

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Abstract

The invention discloses a PVC heat shrinking film which is prepared by raw materials in parts by weight as follows: 90-100 parts of PVC resin, 1-5 parts of an assistant, 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 PVC heat shrinkage film. The PVC heat shrinkage film obtained by adopting the preparation method has better transparency compared with a common PVC heat shrinkage film, and is uniform in shrinkage, high in shrink rate and environment-friendly; and the preparation method is simple and easy to operate, and can realize large-scale production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a PVC heat-shrinkable film and a preparation method thereof. Background technique [0002] PVC heat-shrinkable film is made of ethylene-based PVC resin mixed with more than a dozen auxiliary materials and then inflated twice. It is characterized by good transparency, easy shrinkage, high strength, shrinkage rate can be adjusted freely according to user needs, and strong operability. Although the PVC heat-shrinkable film prepared at present makes up for some defects of the traditional process as a whole, the performance of the obtained PVC product still needs to be improved. Therefore, PVC heat-shrinkable films that meet high requirements for various performance parameters need to be studied and prepared. Contents of the invention [0003] Purpose of the invention: In view of the above problems, the first purpose of the present invention is to provide a...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/20C08K5/103C08K5/09C08K5/11B29C47/92B29C55/12B29D7/01B29C48/92
CPCB29C48/022B29C48/08B29C48/92B29C2948/92152B29C2948/92428
Inventor 王向东
Owner JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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