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Ultrahigh wear-resistant BOPP (Biaxially-oriented Polypropylene) film and preparation method thereof

An ultra-high, ethylene technology, applied in the direction of chemical instruments and methods, flat products, and other household appliances, can solve the problems of easy aggregation of inorganic nano-scale substances, affecting the optical properties of the film, and defects in the appearance of the film, so as to maintain the design effect , enhance the desire to buy, the effect of low friction coefficient

Pending Publication Date: 2022-05-10
HAINAN SHINER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing wear-resistant smoke film mainly achieves the purpose of improving the wear resistance of the film through the addition of polymer silicone smooth masterbatch and inorganic nano-materials. The disadvantages are: 1. The wear resistance is poor, and the general wear resistance index is greater than 0.5 %; 2. The added nano-scale substances are inorganic substances, which will affect the optical properties (gloss and haze) of the film, the amount is not well controlled, and the film may even produce appearance defects (crystal points); 3. Inorganic nano-scale substances Agglomeration is easy to occur, and there are defects on the appearance of the film

Method used

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  • Ultrahigh wear-resistant BOPP (Biaxially-oriented Polypropylene) film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] The thickness of the upper layer is 0.6 μm, and it is prepared from the following raw materials by weight: 76% ethylene-propylene binary copolymer heat-sealing functional masterbatch, 12% silicone polymer, 10% polydimethylsiloxane, 2% Anti-blocking agent; the thickness of the middle layer is 16.6 μm, and it is prepared from the following raw materials by weight: 78% homopolypropylene, 20% petroleum resin, 2% antistatic agent; the thickness of the lower layer is 0.8 μm, made of the following raw materials by weight Formulated as: 93% ethylene-propylene-butadiene terpolymer, 5% polydimethylsiloxane, 2% antiblocking agent. The total thickness is 18 μm.

[0095] The manufacturing method of the above-mentioned ultra-high wear-resistant BOPP film is as follows:

[0096] (1) Ingredients

[0097] The upper, middle and lower layers are mixed according to the above-mentioned weight ratio of raw materials, and the mixing can be done manually or by equipment.

[0098] (2) Extrus...

Embodiment 2

[0109] The thickness of the upper layer is 0.5 μm, and it is prepared from the following raw materials by weight: 74% ethylene-propylene binary copolymer heat-sealing functional masterbatch, 14% silicone polymer, 10% polydimethylsiloxane, 2 % anti-blocking agent; the thickness of the middle layer is 20.7μm, which is made up of the following raw materials by weight: 73% homopolypropylene, 15% petroleum resin, 2% antistatic agent; the thickness of the lower layer is 0.8μm, made of the following weight ratios The raw materials are formulated into: 98% ethylene-propylene-butadiene terpolymer, 2% anti-blocking agent. The total thickness is 22 μm.

[0110] The manufacturing method of the above-mentioned ultra-high wear-resistant BOPP film is as follows:

[0111] (1) Ingredients

[0112] The upper, middle and lower layers are mixed according to the above-mentioned weight ratio of raw materials, and the mixing can be done manually or by equipment.

[0113] (2) Extrusion

[0114] T...

Embodiment 3

[0124] The thickness of the upper layer is 0.7 μm, and it is prepared from the following raw materials by weight: 78% ethylene-propylene binary copolymer heat-sealing functional masterbatch, 10% silicone polymer, 10% polydimethylsiloxane, 2% Anti-blocking agent; the thickness of the middle layer is 38.5μm, which is made up of the following raw materials by weight: 67% homopolypropylene, 30% petroleum resin, 3% antistatic agent; the thickness of the lower layer is 0.8μm, made of the following raw materials by weight Formulated as: 96% ethylene-propylene-butadiene terpolymer, 2% polydimethylsiloxane, 2% antiblocking agent. The total thickness is 40 μm.

[0125] The manufacturing method of the above-mentioned ultra-high wear-resistant BOPP film is as follows:

[0126] (1) Ingredients

[0127] The upper, middle and lower layers are mixed according to the above-mentioned weight ratio of raw materials, and the mixing can be done manually or by equipment.

[0128] (2) Extrusion

[...

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Abstract

The invention provides an ultrahigh wear-resistant BOPP (biaxially-oriented polypropylene) film. The ultrahigh wear-resistant BOPP film consists of an upper layer, a middle layer and a lower layer in sequence from top to bottom, the upper layer is formed by blending and extruding an ethylene-propylene-butadiene terpolymer or ethylene-propylene biopolymer heat-sealing functional master batch, polydimethylsiloxane, a silicone high polymer material and an anti-blocking agent; the middle layer is formed by blending and extruding homo-polypropylene and an antistatic agent, or homo-polypropylene, petroleum resin and an antistatic agent; and the lower layer is formed by blending and extruding an ethylene-propylene-butadiene terpolymer or ethylene-propylene biopolymer heat-sealing functional master batch, polydimethylsiloxane and an anti-blocking agent. According to the invention, the assistant with a high-symmetry flexible molecular chain structure is added to the surface layer of the BOPP smoke film, so that the shear force during friction of the surface of the smoke film is reduced, the lubricating effect is improved, the surface tension is reduced, the lower friction coefficient is realized, the wear resistance of the film is improved, and the wear resistance is less than or equal to 0.2%.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to an ultra-high wear-resistant BOPP film and a preparation method thereof. Background technique [0002] The traditional cigarette film products have poor scratch resistance, and the dynamic friction between the cigarette packaging process and the machine is prone to scratches. Friction during picking will produce scratches. At the point of sale, these scratches will cause adverse visual reactions, especially for high-end cigarettes, which will seriously affect the aesthetics of the original design and reduce consumers' desire to buy. In order to make up for the technical shortcomings of BOPP's wear resistance and better display the packaging design of cigarettes in consumer terminals, some cigarette manufacturers are forced to add plastic bags in the carton to isolate the friction between the cigarette and the corrugated paper or use it on each cigarette. PE bags are u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L83/04C08L23/12C08L57/02C08J5/18B29D7/01B29C48/18B29C48/92B29C48/08B29C55/14B32B27/32B32B27/08
CPCC08J5/18B29D7/01B29C48/18B29C48/92B29C48/08B29C55/143B32B27/325B32B27/08C08J2323/16C08J2483/04C08J2323/12C08J2457/02B29C2948/92704B29C55/14B32B27/32C08L23/12C08L23/16C08L57/02C08L83/04
Inventor 王俊峰黎坛杜秀亮邢青涛
Owner HAINAN SHINER IND
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