Preparation method of degradable strapping tape material

A technology for tape materials and preparation steps, which is applied in the field of preparation of degradable cable ties, can solve the problems of difficult control of degradation cycle and poor heat resistance, and achieve the effects of easy control of degradation cycle, chemical corrosion resistance and good adhesion.

Inactive Publication Date: 2019-07-23
NOTTING CHANGZHOU PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that the degradation period of polylactic acid is difficult to control when it is used as a cable tie material, and its heat resistance is poor, a method for preparing a degradable cable tie material is provided

Method used

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  • Preparation method of degradable strapping tape material

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Experimental program
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Effect test

Embodiment 1

[0027] Dry polylactic acid in an oven at 40°C to constant weight and cool to room temperature to obtain dry polylactic acid. Place the dry polylactic acid in ST / RI pulsed atmospheric pressure plasma equipment and place it horizontally at the lower end to block The surface of the medium, the electrode material is copper-nickel composite material, the electrode area is 25cm×25cm, the plate spacing is 2mm, the two electrodes are embedded in the glass barrier medium with a thickness of 2mm, and the plasma treatment is performed at a discharge power of 50W for 3 minutes. Modified polylactic acid; according to the mass ratio of 1:5, mix the modified polylactic acid and the acrylic acid aqueous solution with a mass fraction of 50%, and stir for 10 minutes at a stirring speed of 200r / min to obtain a dispersion, and filter to obtain a filter residue. Mix the filter residue and deionized water at a ratio of 1:10, stir at 80°C for 2 hours to obtain a mixed material, add a 10% sodium hydro...

Embodiment 2

[0029] Dry polylactic acid in an oven at 43°C to constant weight, and cool to room temperature to obtain dry polylactic acid. Place the dry polylactic acid in ST / RI pulsed atmospheric pressure plasma equipment and place it horizontally at the lower end to block The surface of the medium, the electrode material is copper-nickel composite material, the electrode area is 25cm×25cm, the plate spacing is 4mm, the two electrodes are embedded in the glass barrier medium with a thickness of 2mm, and the plasma treatment is performed at a discharge power of 55W for 4min. Modified polylactic acid; according to the mass ratio of 1:5, the modified polylactic acid and the mass fraction of 50% acrylic acid aqueous solution were mixed, stirred at a stirring speed of 250r / min for 13min, and the dispersion liquid was obtained, and the filter residue was obtained by filtering. Mix the filter residue and deionized water at 1:10, stir at 90°C for 3 hours to obtain the mixed material, add 10% sodiu...

Embodiment 3

[0031] Dry polylactic acid in an oven at 45°C to constant weight, and cool to room temperature to obtain dry polylactic acid. Place the dry polylactic acid in ST / RI pulsed atmospheric pressure plasma equipment and place it horizontally at the lower end to block The surface of the medium, the electrode material is copper-nickel composite material, the electrode area is 25cm×25cm, the plate spacing is 6mm, the two electrodes are embedded in the glass barrier medium with a thickness of 2mm, and the plasma treatment is performed at a discharge power of 60W for 5min. Modified polylactic acid; according to the mass ratio of 1:5, mix the modified polylactic acid and the acrylic acid aqueous solution with a mass fraction of 50%, and stir for 15 minutes at a stirring speed of 300r / min to obtain a dispersion, and filter to obtain a filter residue. Mix the filter residue and deionized water at a ratio of 1:10, stir for 4 hours at a temperature of 100°C to obtain a mixed material, add a 10...

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Abstract

The invention relates to a preparation method of a degradable strapping tape material and belongs to the technical field of packaging materials. Polylactic acid is treated by argon plasma and graftedwith acrylic acid, and a high polymer material surface is subjected to plasma treatment to be modified; the plasma initiates surface grafting, the surface of polylactic acid can be hydrophilic and keeps hydrophilic for a longer time, thus, biological compatibility of the prepared strapping tape material is improved, and the degradation cycle of the prepared strapping tape material is easy to control; polypropylene is subjected to plasma treatment by plasma polymerization, and a thin film is formed on the surface of a graft copolymer and has good heat stability, good cohesiveness with the material, high strength, uniform and complete film surface and chemical corrosion resistance; polylactic acid is an aliphatic polyester high polymer material which is completely degradable and environmentally friendly, is prepared by polymerization of lactic acid obtained by cereal fermentation and can be completely decomposed under the actions of microorganisms, water, acid, alkali and the like afterbeing discarded.

Description

technical field [0001] The invention relates to a preparation method of a degradable cable tie material, which belongs to the technical field of packaging materials. Background technique [0002] Cable ties, also known as packing belts, are made of polyethylene, polypropylene resin, cold-rolled strip steel, nylon and polyester as raw materials, and are made by extrusion and unidirectional stretching. In addition to being used for sealing and bundling of corrugated boxes, hot-rolled steel coils and cold-rolled steel coils, it can also be used for bundling glass, pipes, materials, fruits, etc. PET strapping is currently the most popular strapping in the world. Since 2002, China's demand for PET strapping has grown at a rate of 500% per year, and it has been widely used in wood, paper, steel, aluminum ingots, and steel pipes. , profiles, glass, building materials, ceramics, electrical appliances, metal products, tobacco, chemical fibers, cotton belts and other industries. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/08C08L23/28C08L91/06C08L7/00C08J3/28C08F283/02C08F220/06
CPCC08F283/02C08J3/28C08J2351/08C08J2367/04C08J2423/12C08L51/08C08L2201/06C08L2201/08C08L2205/035C08L23/286C08L91/06C08L7/00C08F220/06
Inventor 龙仕君
Owner NOTTING CHANGZHOU PRECISION MACHINERY
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