Puncture-resistant two-way stretching nylon film of three-layer structure and preparation method thereof
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A technology of biaxially stretched nylon and three-layer structure, which is applied in the field of nylon film packaging to meet quality assurance requirements, high barrier performance and puncture resistance.
Active Publication Date: 2018-09-11
厦门长塑实业有限公司
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Problems solved by technology
However, ordinary nylon film is difficult to meet this requirement
Therefore, the puncture resistance of the exist
Method used
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Embodiment 1
[0034] A three-layer puncture-resistant biaxially stretched nylon film, in terms of mass percentage, the upper surface layer 1 is composed of 10% copolymerized nylon PA6 / 66, 89.5% PA6, 0.2% silicon dioxide and 0.3% oleic acid amide; the core layer is composed of Composed of 100% copolymerized nylon PA6 / 66; the lower surface layer 2 is composed of 10% copolymerized nylon PA6 / 66, 89.5% PA6, 0.2% talcum powder, and 0.3% oleic acid amide.
[0035] The sample was prepared according to the aforementioned preparation method, and the total thickness of the obtained film was 15 μm, and the thickness of the core layer was 3 μm.
Embodiment 2
[0037] A three-layer puncture-resistant biaxially oriented nylon film, the upper surface layer 1 is composed of 20% copolymerized nylon PA66 / 6, 79.5% PA6, 0.2% silica, 0.3% oleic acid amide; the core layer is composed of 100% copolymerized nylon Composed of PA66 / 6; the lower surface layer 2 is composed of 20% copolymerized nylon PA66 / 6, 79.5% PA6, 0.2% talc, and 0.3% oleic acid amide.
[0038] The sample was prepared according to the aforementioned preparation method, and the total thickness of the obtained film was 15 μm, and the thickness of the core layer was 5 μm.
Embodiment 3
[0040] A three-layer puncture-resistant biaxially oriented nylon film, in terms of mass percentage, the upper surface layer 1 is composed of 30% copolymerized nylon PA1010 / 6, 69.5% PA6, 0.2% silicon dioxide, and 0.3% oleic acid amide; the core layer It is composed of 80% copolymerized nylon PA1010 / 6, 20% copolymerized nylon PA6 / 66; the lower surface layer 2 is composed of 30% copolymerized nylon PA54, 69.5% PA6, 0.2% talcum powder, and 0.3% oleic acid amide.
[0041] The sample was prepared according to the aforementioned preparation method, and the total thickness of the obtained film was 15 μm, and the thickness of the core layer was 2 μm.
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Abstract
The invention relates to a puncture-resistant two-way stretching nylon film of a three-layer structure and a preparation method thereof. The puncture-resistant two-way stretching nylon film of the three-layer structure consists of an upper surface layer 1, a core layer and a lower surface layer 2, wherein the raw material formula of the upper surface layer 1 comprises the following materials in percentage by mass: 10 to 30 percent of copolymerized nylon, 68.4 to 89.8 percent of nylon resin, 0.1 to 0.8 percent of anti-bonding agents and 0.1 to 0.8 percent of slipping agents; the raw material formula of the core layer is prepared from 100 percent of additives in percentage by mass; the raw material formula of the lower surface layer 2 comprises the following materials in percentage by mass:10 to 30 percent of copolymerized nylon, 68.4 to 89.8 percent of nylon resin, 0.1 to 0.8 percent of anti-bonding agents and 0.1 to 0.8 percent of slipping agents. The invention also provides the preparation method of the puncture-resistant two-way stretching nylon film of the three-layer structure. The film prepared by using the method has the characteristics of excellent puncture-resistant performance and the like, and is particularly suitable for being used as packages of commodities with edges and corners such as sharp bones and fishbone, heavy objects and the like.
Description
technical field [0001] The invention relates to the field of nylon film packaging, in particular to a puncture-resistant biaxially stretched nylon film with a three-layer structure and a preparation method thereof. Background technique [0002] Biaxially oriented nylon film has the advantages of high tensile strength, high barrier properties, excellent puncture resistance and chemical solvent resistance, and is widely used in many industries such as food packaging, electronic packaging, and pharmaceutical packaging. [0003] In recent years, with the development of the economy, the requirements for packaging of commodities have become higher and higher. Many irregularly shaped and angular products, such as foods containing sharp objects such as bones and fish bones, and electronic printed circuit boards, etc., often occur at the edges and corners of ordinary nylon composite films due to the stretching of the nylon layer during the vacuum packaging process. Damaged, which af...
Claims
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Application Information
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