High-strength polypropylene packaging film

Abstract

The utility model provides a high-strength polypropylene packaging film, which comprises a packaging film body, the packaging film body comprises a polypropylene layer, a first functional layer and a second functional layer, the first functional layer comprises a nano-filler layer and a glass fiber layer, the second functional layer comprises a carbon fiber layer and a polymer blend layer, and the polymer blend layer is arranged between the nano-filler layer and the glass fiber layer. By arranging the first functional layer comprising the nano-filler layer and the glass fiber layer, the nano-filler layer can form uniform nano-scale dispersion in a polypropylene matrix, so that the mechanical properties, such as strength and toughness, of the material can be improved, and the dispersion effect helps to block crack propagation, so that the durability of polypropylene is improved, and the service life of the polypropylene is prolonged; meanwhile, the barrier property of the material can be improved, penetration of gas and moisture is effectively reduced, the tensile strength and rigidity of polypropylene can be remarkably enhanced through the glass fiber layer, the packaging film body is firmer, and the polypropylene added with the glass fiber has good heat stability and size stability.

Description

Technical Field

[0001] The utility model relates to a high-strength polypropylene packaging film, belonging to the technical field of packaging films. Background Art

[0002] Packaging film mainly refers to the film used for packaging articles, usually including polyethylene film, biaxially oriented polyester (BOPET), BOPP film and CPP film, etc. It is mainly used for the packaging of food, medicine and textiles. It has puncture resistance and super strength and high performance. It is used to wrap the goods stacked on the pallet to make the packaging more stable and tidy and has super waterproof effect. It is widely used in foreign trade export, papermaking, hardware, plastic chemicals, building materials, food, medicine and other industries.

[0003] The existing packaging film may have insufficient strength during use. If the strength of the packaging film is poor, the film may be easily broken or damaged during the logistics process, thereby exposing the goods inside to the external environment, increasing the risk of contamination or damage. In addition, the weak packaging film may not be able to effectively bear the weight of the goods, resulting in packaging failure, affecting the overall quality and sales value of the product;

[0004] Therefore, a high-strength polypropylene packaging film is proposed. Utility Model Content

[0005] In view of this, the utility model provides a high-strength polypropylene packaging film to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: it includes a packaging film body, the packaging film body includes a polypropylene layer, a first functional layer and a second functional layer, the first functional layer includes a nanofiller layer and a glass fiber layer, and the second functional layer includes a carbon fiber layer and a polymer blend layer.

[0007] Further preferably, the first functional layer is arranged on the outside of the polypropylene layer, and the second functional layer is arranged on the outside of the first functional layer.

[0008] Further preferably, the nanofiller layer is arranged on the outside of the polypropylene layer, and the glass fiber layer is arranged on the outside of the nanofiller layer.

[0009] Further preferably, the carbon fiber layer is disposed on the outside of the glass fiber layer, and the polymer blend layer is disposed on the outside of the carbon fiber layer.

[0010] Further preferably, the nanofiller layer and the glass fiber layer have the same thickness, and are both 1 mm to 2 mm.

[0011] Further preferably, the carbon fiber layer and the polymer blend layer have the same thickness, and are both 1 mm-2 mm.

[0012] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0013] By setting a first functional layer including a nanofiller layer and a glass fiber layer, wherein the nanofiller layer can form a uniform nano-scale dispersion in the polypropylene matrix, this helps to improve the mechanical properties of the material, such as strength and toughness. This dispersion helps to block the propagation of cracks, thereby improving the durability and life of polypropylene. At the same time, it can also improve the barrier properties of the material and effectively reduce the penetration of gas and moisture. The glass fiber layer can significantly enhance the tensile strength and stiffness of polypropylene, making the packaging film body stronger. The polypropylene with added glass fiber also has good thermal stability and dimensional stability. In addition, it can also improve the wear resistance and durability of the product. Setting The second functional layer includes a carbon fiber layer and a polymer blend layer, wherein the carbon fiber layer greatly improves the strength and rigidity of polypropylene, and is also widely used in fields requiring weight reduction due to its lightweight characteristics. Carbon fiber reinforced polypropylene has excellent fatigue resistance and shock resistance, and is particularly suitable for packaging applications with large dynamic loads. The polymer blend layer can improve the toughness and impact resistance of polypropylene by blending with other polymers such as polyethylene. This blending method can improve the overall performance of the packaging film without sacrificing transparency. The blend can also optimize processing performance and cost-effectiveness by adjusting the formula to adapt to different application requirements.

[0014] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a front view of the main structure of the utility model;

[0017] Figure 2 This is a structural diagram of the packaging film body in the utility model;

[0018] Figure 3 This is the structural diagram of the first functional layer in the utility model;

[0019] Figure 4 This is a structural diagram of the second functional layer in the utility model.

[0020] Reference numerals: 1, packaging film body; 101, polypropylene layer; 102, first functional layer; 1021, nanofiller layer; 1022, glass fiber layer; 103, second functional layer; 1031, carbon fiber layer; 1032, polymer blend layer; DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1-4 As shown, the embodiment of the utility model provides a packaging film body 1, the packaging film body 1 includes a polypropylene layer 101, a first functional layer 102 and a second functional layer 103, the first functional layer 102 includes a nanofiller layer 1021 and a glass fiber layer 1022, the second functional layer 103 includes a carbon fiber layer 1031 and a polymer blend layer 1032, the first functional layer 102 is arranged on the outside of the polypropylene layer 101, the second functional layer 103 is arranged on the outside of the first functional layer 102, and the nanofiller layer 1021 includes a glass fiber layer 1022, and the second functional layer 103 includes a carbon fiber layer 1031 and a polymer blend layer 1032. Layer 1021 is arranged on the outside of the polypropylene layer 101, the glass fiber layer 1022 is arranged on the outside of the nanofiller layer 1021, the carbon fiber layer 1031 is arranged on the outside of the glass fiber layer 1022, and the polymer blend layer 1032 is arranged on the outside of the carbon fiber layer 1031. The thickness of the nanofiller layer 1021 and the glass fiber layer 1022 is consistent, and both are 1mm-2mm. The thickness of the carbon fiber layer 1031 and the polymer blend layer 1032 is consistent, and both are 1mm-2mm.

[0025] When the utility model is working: by setting the first functional layer 102 including the nano filler layer 1021 and the glass fiber layer 1022, the nano filler layer 1021 can form a uniform nano-scale dispersion in the polypropylene matrix, which helps to improve the mechanical properties of the material, such as strength and toughness. This dispersion helps to block the propagation of cracks, thereby improving the durability and life of polypropylene, and at the same time can also improve the barrier property of the material, effectively reducing the penetration of gas and moisture. The glass fiber layer 1022 can significantly enhance the tensile strength and rigidity of polypropylene, making the packaging film body 1 more solid. The polypropylene with added glass fiber also has good thermal stability and dimensional stability. In addition, it can also improve the wear resistance and Durability, a second functional layer 103 including a carbon fiber layer 1031 and a polymer blend layer 1032 is provided, wherein the carbon fiber layer 1031 greatly improves the strength and rigidity of polypropylene, and is also widely used in fields requiring weight reduction due to its lightweight characteristics, carbon fiber reinforced polypropylene has excellent fatigue resistance and shock resistance, and is particularly suitable for packaging applications with large dynamic loads, and the polymer blend layer 1032 can improve the toughness and impact resistance of polypropylene by blending with other polymers such as polyethylene, and this blending method can improve the overall performance of the packaging film without sacrificing transparency, and the blend can also optimize the processing performance and cost-effectiveness by adjusting the formula to meet different application requirements.

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-strength polypropylene packaging film, characterized in that: The packaging film comprises a packaging film body (1), wherein the packaging film body (1) comprises a polypropylene layer (101), a first functional layer (102) and a second functional layer (103), wherein the first functional layer (102) comprises a nanofiller layer (1021) and a glass fiber layer (1022), and the second functional layer (103) comprises a carbon fiber layer (1031) and a polymer blend layer (1032).

2. A high-strength polypropylene packaging film according to claim 1, characterized in that: The first functional layer (102) is arranged on the outside of the polypropylene layer (101), and the second functional layer (103) is arranged on the outside of the first functional layer (102).

3. The high-strength polypropylene packaging film according to claim 1, characterized in that: The nanofiller layer (1021) is arranged on the outside of the polypropylene layer (101), and the glass fiber layer (1022) is arranged on the outside of the nanofiller layer (1021).

4. The high-strength polypropylene packaging film according to claim 1, characterized in that: The carbon fiber layer (1031) is arranged on the outside of the glass fiber layer (1022), and the polymer blend layer (1032) is arranged on the outside of the carbon fiber layer (1031).

5. The high-strength polypropylene packaging film according to claim 1, characterized in that: The nanofiller layer (1021) and the glass fiber layer (1022) have the same thickness, both of which are 1 mm to 2 mm.

6. A high-strength polypropylene packaging film according to claim 1, characterized in that: The carbon fiber layer (1031) and the polymer blend layer (1032) have the same thickness, both of which are 1 mm to 2 mm.

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