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High-adhesion hot melt adhesive for aluminum-plastic panel and preparation method thereof

A technology for hot melt adhesives and aluminum-plastic panels, applied in the directions of polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problem of reducing bonding strength, no flame retardancy and low bonding strength And other issues

Inactive Publication Date: 2021-05-18
HUANGSHAN BANNER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the modification method commonly used in the market is to modify general-purpose plastic polyolefins with polar substances with unsaturated groups such as maleic anhydride, so that polyolefins maintain the original good compatibility with polymers on the one hand. On the other hand, the modification of functional groups such as acid and ester can greatly increase the polarity of polyolefin materials, which can make the materials have good bonding effect with metals after modification, but this kind with maleic anhydride Modified general-purpose plastic polyolefin does not have flame retardancy. In order to solve this problem, flame retardants are often added to the material, but the flame retardants will reduce the bonding strength. In actual outdoor use, the bonding strength will decrease with the use time. lower

Method used

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Examples

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preparation example Construction

[0051] In some preferred embodiments, the preparation method of the high-adhesive hot melt adhesive comprises the following steps:

[0052] Step 1: Put the maleic anhydride grafted polyethylene, polyethylene resin, ethylene-octene copolymer, flame retardant, non-alkaline metal oxide auxiliary flame retardant, antioxidant, ultraviolet absorber, and antibacterial agent into the Mix in a high-speed mixer.

[0053] Step 2: Melt and extrude the mixture obtained in Step 1 in a twin-screw extruder and pelletize to obtain the flame-retardant hot-melt adhesive.

[0054] In some preferred embodiments, the maleic anhydride-grafted polyethylene in Step 1 is the maleic anhydride-grafted polyethylene that has been treated in a vacuum oven at 100°C for 2 hours or more.

[0055] During the reaction process of polyethylene melt-grafting maleic anhydride, it is generally believed that maleic anhydride will not undergo homopolymerization, so there are grafted anhydrides and a small amount of fr...

Embodiment 1

[0059] This embodiment provides a method for preparing a high-adhesive hot-melt adhesive for aluminum-plastic panels. The raw materials for preparing the high-adhesive hot-melt adhesive include: 20 parts of maleic anhydride grafted polyethylene, polyethylene 30 parts of resin, 5-10 parts of ethylene-octene copolymer, 10 parts of flame retardant, 6 parts of non-alkaline metal oxide auxiliary flame retardant, 0.5 part of antioxidant, 0.1 part of ultraviolet absorber, 0.1 part of antibacterial agent, The preparation method of the high-adhesive hot-melt adhesive comprises the following steps:

[0060] Step 1: Put the maleic anhydride grafted polyethylene, polyethylene resin, ethylene-octene copolymer, flame retardant, non-alkaline metal oxide auxiliary flame retardant, antioxidant, ultraviolet absorber, and antibacterial agent into the Mix in a high-speed mixer.

[0061] Step 2: Melt and extrude the mixture obtained in Step 1 in a twin-screw extruder and pelletize to obtain the f...

Embodiment 2

[0071] This embodiment provides a method for preparing a high-adhesive hot-melt adhesive for aluminum-plastic panels. The raw materials for preparing the high-adhesive hot-melt adhesive include: 20 parts of maleic anhydride grafted polyethylene, polyethylene 30 parts of resin, 5-10 parts of ethylene-octene copolymer, 10 parts of flame retardant, 6 parts of non-alkaline metal oxide auxiliary flame retardant, 0.5 part of antioxidant, 0.1 part of ultraviolet absorber, 0.1 part of antibacterial agent, The preparation method of the high-adhesive hot-melt adhesive comprises the following steps:

[0072] Step 1: Put the maleic anhydride grafted polyethylene, polyethylene resin, ethylene-octene copolymer, flame retardant, non-alkaline metal oxide auxiliary flame retardant, antioxidant, ultraviolet absorber, and antibacterial agent into the Mix in a high-speed mixer.

[0073] Step 2: Melt and extrude the mixture obtained in Step 1 in a twin-screw extruder and pelletize to obtain the f...

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Abstract

The invention relates to the technical field of adhesives, in particular to a high-adhesion hot melt adhesive for an aluminum-plastic panel and a preparation method thereof. The high-adhesion hot melt adhesive is prepared from the following raw materials in parts by weight: 10 to 25 parts of maleic anhydride grafted polyethylene, 15 to 35 parts of polyethylene resin, 5 to 10 parts of ethylene-octylene copolymer, 5 to 10 parts of flame retardant, 5 to 10 parts of non-alkaline metal oxide flame retardant aid, 0.1 to 2 parts of antioxidant, 0.1 to 1 part of ultraviolet absorbent and 0.1 to 1 part of antibacterial agent. According to the high-adhesion hot melt adhesive for the aluminum-plastic panel and the preparation method thereof, the high-adhesion hot melt adhesive for the aluminum-plastic panel has high flame retardance under the condition of high adhesion strength through specific raw materials, proportions and a preparation process, excellent adhesion durability can be kept in the actual outdoor use process, and the high-adhesion hot melt adhesive has ultra-long service life.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a high-adhesive hot melt adhesive for aluminum-plastic panels and a preparation method thereof. Background technique [0002] Aluminum-plastic composite panel (hereinafter referred to as aluminum-plastic panel) refers to a multi-layer composite panel with plastic as the core layer (usually polyethylene material) and aluminum on both sides. The plastic core and aluminum are bonded by hot-melt adhesive film. The surface of the product is covered with a decorative and protective coating or film as the decorative surface of the product. Aluminum-plastic panels are widely used because of their light weight and high strength. [0003] At present, the modification method commonly used in the market is to modify general-purpose plastic polyolefins with polar substances with unsaturated groups such as maleic anhydride, so that polyolefins maintain the original good compatibility with po...

Claims

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Application Information

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IPC IPC(8): C09J123/06C09J151/06C09J123/08C09J11/04C09J11/08C09J11/06
CPCC09J123/06C09J11/04C09J11/08C09J11/06C08K2003/2255C08K2003/387C08L2201/02C08L2205/035C08L51/06C08L23/0815C08L25/18C08K3/24C08K3/22C08K3/38C08K5/523C08K13/02
Inventor 郑德宝
Owner HUANGSHAN BANNER TECH
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