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Polyethylene glycol terephthalate antibacterial composite material and preparation technology thereof

A technology of polyethylene terephthalate and composite material, which is applied in the field of polyethylene terephthalate antibacterial composite material and its preparation technology, can solve the problem of limiting the use range of PET and failing to achieve product packaging requirements, poor antibacterial effect of PET, etc., to achieve the effect of low manufacturing cost, low processing cost and good antibacterial effect

Inactive Publication Date: 2013-01-23
广州信联智通实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used as packaging materials for mineral water, beer, and juice drinks, PET often fails to meet product packaging requirements due to its poor antibacterial effect, thus limiting the use of PET as packaging materials.

Method used

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  • Polyethylene glycol terephthalate antibacterial composite material and preparation technology thereof

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Effect test

Embodiment 1

[0024] The polyethylene terephthalate antibacterial composite material of the present embodiment is made from the raw material of following parts by weight: polyethylene terephthalate 62Kg, chitosan 25Kg, silver series inorganic antibacterial agent HN -300 is 10Kg, stearic acid is 2Kg, and antioxidant 1010 is 1Kg.

[0025] Its preparation process comprises the following steps:

[0026] (1) Weigh the raw materials according to the above ratio of parts by weight, then place them in a high-speed mixer and mix them for 10 minutes;

[0027] (2) Melt and extrude the mixed raw materials in step (1) in a co-rotating parallel twin-screw extruder, and granulate. The processing parameters are as follows: the temperature of the first zone is 235°C, the temperature of the second zone is 255°C, and the temperature of the third zone is 260°C ℃, the temperature in the fourth zone is 265 ℃, the temperature in the fifth zone is 270 ℃, the temperature in the sixth zone is 275 ℃, the temperature...

Embodiment 2

[0031] The polyethylene terephthalate antibacterial composite material of the present embodiment is made from the raw material of following parts by weight: polyethylene terephthalate 67Kg, chitosan 20Kg, silver series inorganic antibacterial agent HN -300 is 10Kg, stearic acid is 2Kg, and antioxidant 1010 is 1Kg.

[0032] Its preparation process comprises the following steps:

[0033] (1) Weigh the raw materials according to the above weight ratio, then place them in a high-speed mixer and mix them for 10 minutes;

[0034] (2) The raw materials mixed in step (1) are melted and extruded in the parallel twin-screw extruder, and granulated. The processing parameters are as follows: the temperature of the first zone is 235°C, the temperature of the second zone is 255°C, and the temperature of the third zone 260°C, 265°C in zone 4, 270°C in zone 5, 275°C in zone 6, 260°C in zone 7, 260°C in zone 8, 260°C in zone 9, 255°C melt temperature, 265°C head temperature , residence time ...

Embodiment 3

[0038] The polyethylene terephthalate antibacterial composite material of the present embodiment is made from the raw material of following parts by weight: polyethylene terephthalate 72Kg, chitosan 15Kg, silver series inorganic antibacterial agent HN -300 is 10Kg, polyethylene wax is 2Kg, antioxidant 168 is 1Kg.

[0039] Its preparation process comprises the following steps:

[0040] (1) Weigh the raw materials according to the above weight ratio, then place them in a high-speed mixer and mix them for 10 minutes;

[0041] (2) Melt and extrude the mixed raw materials in step (1) in a co-rotating parallel twin-screw extruder, and granulate. The processing parameters are as follows: the temperature of the first zone is 235°C, the temperature of the second zone is 255°C, and the temperature of the third zone is 260°C ℃, the temperature in the fourth zone is 265 ℃, the temperature in the fifth zone is 270 ℃, the temperature in the sixth zone is 275 ℃, the temperature in the seven...

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Abstract

The invention provides a polyethylene glycol terephthalate antibacterial composite material and a preparation technology of the polyethylene glycol terephthalate antibacterial composite material. The composite material comprises the following components by weight: 62 to 72 parts of polyethylene glycol terephthalate, 15 to 25 parts of natural organic antibacterial agent, 5 to 15 parts of inorganic antibacterial agent, 1 to 3 parts of lubricant, and 0.5 to 1.5 parts of antioxidant. The invention also provides a preparation technology of the polyethylene glycol terephthalate antibacterial composite material. The polyethylene glycol terephthalate antibacterial composite material provided by the invention has a high antibacterial effect, is easy to process, and low in cost, can be used for manufacturing mineral water bottle, beer bottle and fruit drink bottle and the like; and the polyethylene glycol terephthalate antibacterial composite material is simple in preparation technology and suitable for industrial production.

Description

technical field [0001] The invention relates to a polyester composite material and a preparation process thereof, in particular to a polyethylene terephthalate antibacterial composite material and a preparation process thereof. Background technique [0002] Polyethylene terephthalate, referred to as PET, not only has excellent wear resistance, heat resistance, chemical resistance and good mechanical properties, but also has good transparency, gloss and appearance properties. . Because PET has the above advantages, it can be widely used in the field of food packaging. However, when used as packaging materials for mineral water, beer, and juice drinks, PET often fails to meet product packaging requirements due to its poor antibacterial effect, thereby limiting the scope of use of PET as packaging materials. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a polyethylene terephthalate antibacterial composite materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L5/08B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29C48/04B29C48/40
Inventor 曾小斌
Owner 广州信联智通实业股份有限公司
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