Wear-resistant BOPP (Biaxially-oriented Polypropylene) heat-sealing film and preparation method thereof

A film and raw material technology, applied in the field of BOPP heat-sealing film and its preparation, can solve the problems of increasing film surface haze, film surface hardness without essential improvement, and affecting packaging appearance, etc., to reduce friction coefficient, improve wear resistance, improve The effect of abrasion resistance

Active Publication Date: 2022-03-11
FSPG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods of improving the surface wear resistance of BOPP films have certain effects, but the added organic fillers (inorganic particles) are dispersed on the surface of the copolymerized PP in the form of "sea islands", and the surface hardness of the film has not been substantially improved, and some inorganic particles will also be due to The hardness is significantly higher than that of polypropylene, which will additionally cause abrasion between the film and the film during winding, significantly increase the haze on the film surface, and affect the appearance of the package

Method used

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  • Wear-resistant BOPP (Biaxially-oriented Polypropylene) heat-sealing film and preparation method thereof
  • Wear-resistant BOPP (Biaxially-oriented Polypropylene) heat-sealing film and preparation method thereof
  • Wear-resistant BOPP (Biaxially-oriented Polypropylene) heat-sealing film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Embodiment 1: the preparation of the BOPP heat-sealing film of abrasion resistance

[0063] A scratch-resistant BOPP heat-sealing film, from top to bottom, sequentially includes an outer layer, a core layer, and an inner layer; the thickness of the outer layer is 1 μm, the thickness of the core layer is 18 μm, and the thickness of the inner layer is 1 μm.

[0064] The raw material components for preparing the outer layer, in parts by weight, include 92 parts of carrier (propylene-ethylene-butylene copolymer), 2.5 parts of single-end carboxylated polypropylene wax, 5 parts of double-ended hydroxyl polydimethylsiloxane Part, 0.5 part of organic spherical anti-sticking agent (PMMA microsphere);

[0065] Prepare the raw material components of the inner surface layer, in parts by weight, including 3 parts of ultra-high molecular weight silicone slip agent (MB-01 of Maitu High-tech Materials Co., Ltd.), terpolymerized polypropylene (propylene-ethylene-butylene ethylene copol...

Embodiment 2

[0071] Embodiment 2: the preparation of the BOPP heat-sealing film of abrasion resistance

[0072] The difference between embodiment 2 and embodiment 1 is only that the fusion temperature of the twin-screw granulator in step (1) is 230°C, the die head temperature of the twin-screw granulator is 230°C, and the rest of the raw material components and preparation process are the same as Example 1 is the same.

Embodiment 3

[0073] Embodiment 3: the preparation of the BOPP heat-sealing film of abrasion resistance

[0074] The difference between embodiment 3 and embodiment 1 is only that the fusion temperature of the twin-screw granulator in step (1) is 250°C, the die head temperature of the twin-screw granulator is 250°C, and the rest of the raw material components and preparation process are the same as Example 1 is the same.

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Abstract

The invention belongs to the field of plastic films, and discloses a wear-resistant BOPP (biaxially-oriented polypropylene) heat-sealing film and a preparation method thereof. The BOPP heat-sealing film sequentially comprises an outer surface layer, a core layer and an inner surface layer from top to bottom, the outer surface layer is prepared from the following raw material components: a carrier, single-terminal carboxyl polyolefin wax, double-terminal hydroxyl polysiloxane and an organic spherical anti-sticking agent; the raw material component for preparing the inner surface layer comprises a silicone slipping agent. The single-terminal carboxyl polyolefin wax is used for modifying the double-terminal hydroxyl polyoxane to form a block copolymer, so that the compatibility and the dispersing performance of the double-terminal hydroxyl polyoxane in a carrier are improved, and the wear resistance and the scratch resistance of the BOPP film are greatly improved. The silicone slipping agent in the inner surface layer can obviously reduce the friction coefficient of the surface of the inner surface layer, so that the wear resistance of the BOPP film is improved.

Description

technical field [0001] The invention belongs to the field of plastic films, in particular to a scratch-resistant BOPP heat-sealing film and a preparation method thereof. Background technique [0002] BOPP film is a polymer polypropylene melt that is first made into a sheet or a thick film through a long and narrow machine head, and then in a special stretching machine, at a certain temperature and a set speed, simultaneously or step by step in a vertical A film made by stretching in two directions (longitudinal and transverse) and undergoing appropriate cooling or heat treatment or special processing. BOPP film is widely used in the packaging of various items. It has an excellent effect of blocking water, and is beautiful and practical. However, BOPP film is mainly made of high-molecular polypropylene, and its surface hardness is low. It is easy to rub against other objects during production or transportation, causing the surface of BOPP film to be worn or scratched, which ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/18B65D65/40B29D7/01
CPCB32B27/32B32B27/08B32B27/18B65D65/40B29D7/01B32B2250/242B32B2307/558B32B2307/554B32B2307/584B32B2307/412B32B2307/746B32B2553/00
Inventor何庆东连万轩
OwnerFSPG HI TECH