Nylon film

A technology of nylon film and nylon resin, which is applied in the field of nylon film, can solve the problems of complex synthesis process and certain pollution, and achieve high gas barrier properties, excellent tensile strength and puncture strength, and wide industrial application prospects

Active Publication Date: 2013-06-12
CATHAY R&D CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current resin chips for the production of nylon films are basically made of petroleum derivatives as raw materials. For example, the two varieties of nylon 6 and nylon 66 with the largest market share in the nylon market, their raw materials caprolactam and adipic acid are obtained through benzene hom

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 , the preparation of nylon 56

[0043]The 50-liter enamel salt-forming kettle was vacuumed and filled with nitrogen to replace the air three times, and protected with nitrogen, 30kg of pure water was added to the salt-forming kettle, and then 12.46kg of pentamethylenediamine (purchased from Shandong Kaisai, containing ASTM D6866 standard organic carbon from renewable sources, gas phase normalization method purity 99.56%), start stirring, add 17.64kg of adipic acid (purchased from Liaoning Petrochemical), and then add 6g of antioxidant H10 (Bruggolen H10 German Brug Gehman Company) to prepare nylon saline solution.

[0044] Replace the air in a 100-liter polymerization kettle (K / SY166-2007 type) with nitrogen, and transfer the nylon salt solution to the polymerization kettle. The temperature of the oil bath rises to 230°C. After the pressure in the kettle rises to 1.73Mpa, start to vent. When the temperature in the kettle reaches 265°C, vacuumize to -0.06Mpa ...

Embodiment 2

[0045] Example 2 , the preparation of nylon 56

[0046] Operate in the same manner as in Example 1 except that the amount of pentamethylenediamine added in the adjustment example 1 is 12.54kg. Nylon 56 was prepared with a reduced viscosity of 160ml / g.

Embodiment 3

[0047] Example 3 , the preparation of nylon 56

[0048] Operate in the same manner as in Example 1 except that the amount of pentamethylenediamine added in the adjustment example 1 is 12.68kg. Nylon 56 was prepared with a reduced viscosity of 200ml / g.

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Abstract

The invention discloses a nylon film. The nylon film comprises a nylon resin which is prepared from pentamethylene diamine and aliphatic dibasic acid used as raw materials, wherein at least one of the pentamethylene diamine and the aliphatic dibasic acid is prepared through a biological method. The biaxially-oriented nylon film manufactured by the invention has a thickness of 8-12mu m, has high gas barrier property, excellent tensile strength and puncture strength and high flexibility and tear resistance, has excellent property of resisting oil and various greases, can be used for high-temperature cooking bags, chilled meat vacuum packages, fresh meat packaging bags, cheese flavor food packaging bags and packaging cover materials, can be prepared into a multi-layer film by being compounded with PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene) and other resins, and has wide industrial application prospects.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular, the invention relates to a nylon film. Background technique [0002] Biaxially stretched nylon film has various excellent physical and chemical properties that many other films do not have, such as: high gas barrier and good oil barrier performance, which can block various gases, including oxidizing gases such as oxygen, from penetrating into the film And the unique smell of the items in the packaging bag leaks out of the film, preventing the items in the packaging bag from being oxidized and degraded or changing the taste, and preventing the oil in the packaging bag from seeping out to pollute other items and the environment. Foods packaged with BOPA film have a longer shelf life than other products. The resin film is more than doubled in length. Stretch nylon film also has good puncture resistance and a wide range of temperature resistance, especially suitable for froz...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08G69/26C08G69/34
Inventor 钱明娟邓伟刘驰詹益辉郑毅秦兵兵李乃强
Owner CATHAY R&D CENT CO LTD
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