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Low-temperature-resistant plastic packing tape and preparation method thereof

A technology of low temperature resistance and plastic, applied in packaging, transportation and packaging, flexible and slender components, etc., can solve the problems of not being able to pack heavy items and poor low temperature resistance of plastic packing belts, and achieve low cost, strong temperature resistance, and tensile strength powerful effect

Inactive Publication Date: 2012-10-10
ZHANGJIAGANG CHAINENG BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of poor low temperature resistance and inability to pack heavy items in the prior art plastic packing belt, and provide an improved plastic packing belt

Method used

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  • Low-temperature-resistant plastic packing tape and preparation method thereof
  • Low-temperature-resistant plastic packing tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides a low-temperature-resistant packing tape that can be used in an environment around -50°C to -30°C. The low-temperature-resistant packing tape is prepared by the following steps:

[0027] (1) Preparation of low-temperature-resistant polyester chips by screw blending: Dry 10kg PET, 20kg PBC and 1500g chain extender (GN5500) at 70°C for 4 hours and put them into a clean high-speed mixer, start the high-speed mixer, and stir for 5 Take it out after 10 minutes, and put it into the first section of the twin-screw extruder (the model is LTE-26-40), after melting and kneading, it will be pelletized underwater to obtain polyester chips, and screw extruded in the blending process The parameters of the machine are listed in Table 1.

[0028] Table 1

[0029]

[0030] (2), solid-phase thickening: put the polyester chips obtained in step (1) into a vacuum drum device, and the process control parameters are shown in Table 2.

[0031] Table 2

[0032] ...

Embodiment 2

[0035] This embodiment provides a low-temperature-resistant packing tape that can be used in an environment around -50°C to -30°C. The low-temperature-resistant packing tape is prepared by the following steps:

[0036] (1) Preparation of low-temperature-resistant polyester chips by screw blending: Dry 15kg PET, 15kg PBC and 1000g chain extender (GN5500) at 70°C for 4 hours and put them into a clean high-speed mixer, start the high-speed mixer, and stir for 5 Take it out after 10 minutes, and put it into the first section of the twin-screw extruder (the model is LTE-26-40), after melting and kneading, it will be pelletized underwater to obtain polyester chips, and screw extruded in the blending process The parameter of machine is with embodiment 1.

[0037] (2), solid-phase thickening: the polyester chips gained in step (1) are dropped into the drum device, and the process control parameters are basically the same as in Example 1. The difference is that the time for solid-phase...

Embodiment 3

[0040] This embodiment provides a low-temperature-resistant packing tape that can be used in an environment around -50°C to -30°C. The low-temperature-resistant packing tape is prepared by the following steps:

[0041] (1) Preparation of low-temperature-resistant polyester chips by screw blending: Dry 10kg PET, 20kg PBC and 1200g chain extender (GN5500) at 70°C for 4 hours and put them into a clean high-speed mixer, start the high-speed mixer, and stir for 5 Take it out after 10 minutes, and put it into the first section of the twin-screw extruder (the model is LTE-26-40), after melting and kneading, it will be pelletized underwater to obtain polyester chips, and screw extruded in the blending process The parameter of machine is with embodiment 1.

[0042] (2), solid-phase thickening: the polyester chips obtained in step (1) are dropped into a drum device, and the process control parameters are the same as in Example 1.

[0043] (3), making the polyester chips obtained in ste...

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Abstract

The invention relates to a low-temperature-resistant plastic packing tape and a preparation method of the low-temperature-resistant plastic packing tape. The low-temperature-resistant plastic packing tape comprises the following raw materials in percentage by weight: 95-99% polyester and 1-5% a chain extender, wherein the polyester composition consists of PET (polyethylene terephthalate) and PBC the weight ratio of which is 1: (1-3). the preparation method of the packing tape comprises the steps of dewetting and drying the PET and PBC, entering together with the chain extender by a high-speedmixer through a cylinder of a two-screw extruder, conducting co-mixing and extrusion and pelleting on all raw materials in the two-screw extruder, thus obtaining PET chips; conducting solid phase tackifying on the PET chips for 5-24 hours at 200-220 DEG C under vacuum degree of 15-35mmHg; and manufacturing the PET chips subjected to the step (2) into tapes with set dimensions. The plastic packingtape has excellent low temperature resistance property, can meet requirements of packing heavy objects under low-temperature environment, as well as materials in the fields of Sinkiang cotton bases and the like, and the preparation method of the packing tape is simple.

Description

technical field [0001] The invention relates to the technical field of packing tape preparation, in particular to a low-temperature resistant plastic packing tape, a resin chip used for the packing tape, and a method for preparing the plastic packing tape and the resin chip. Background technique [0002] Polyethylene terephthalate (PET) is an ideal packaging material and textile raw material commonly used by people. It is widely used in packaging, textile, sheet, decoration and other fields. It has excellent physical and mechanical properties and excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, and its creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good. However, ordinary PET is used as a heavy-duty packing belt, which has poor cold resistance. [0003] At present, there are polyethylene, polypropylene plastic strapping and steel strapping products in the...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02B65D63/10B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 赵国付
Owner ZHANGJIAGANG CHAINENG BIOLOGICAL TECH
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