Hot melt glue for aluminum-plastic composite panel and preparation method of hot melt glue

A technology of aluminum-plastic composite panels and hot-melt adhesives, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve the problems of low bonding strength of hot-melt adhesives, cracking of aluminum and plastic Poor aging performance and other problems, to achieve the effect of protecting the environment and human health, reducing the use of toxic and harmful solvents, and low price

Inactive Publication Date: 2013-03-27
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the PE hot melt adhesive for aluminum-plastic composite panels used by domestic aluminum-plastic panel manufacturers is a related product of DuPont in the United States, and the price is high.
The hot melt adhesive produced by domestic enterprises is prone to cracking between the aluminum plate and the plastic plate during use. The main problem is that the bonding strength of the hot melt adhesive is not high and the aging resistance is poor.

Method used

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  • Hot melt glue for aluminum-plastic composite panel and preparation method of hot melt glue
  • Hot melt glue for aluminum-plastic composite panel and preparation method of hot melt glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) After mixing 50 parts of HDPE and 50 parts of LDPE evenly, irradiate for 6 minutes under a radiation source measured at 0.5 kGy for modification;

[0035] (2) Dissolve 0.04 parts of BPO, 0.12 parts of DCP and 5 parts of maleic anhydride in 20 parts of acetone, then mix with 0.4 parts of liquid paraffin, 0.6 parts of AA and 0.3 parts of MA;

[0036] (3) Weigh 10 parts of EVA, 10 parts of antioxidant 1010, 0.5 parts of CPL and 1.0 parts of DMF and mix well;

[0037] (4) Spray the solution in step ② on the surface of the polyethylene obtained in step ①, then continue to add the mixture in ③, fully stir and mix evenly in a high-speed mixer;

[0038] (5) Open the mouth in a fume hood to completely volatilize the solvent, and then use a twin-screw extruder to extrude and granulate to obtain the hot melt adhesive for aluminum-plastic composite panels of the present invention.

[0039] The shear strength is 6.87MPa, the peel strength is 5.53N / mm, the grafting rate is 14.5%...

Embodiment 2

[0041] Adopt the same method as embodiment 1, wherein:

[0042] (1) 70 parts of HDPE and 30 parts of LDPE were irradiated for 2 minutes under a radiation source measured at 1.5kGy for modification;

[0043] (2) Dissolve 0.01 part of BPO, 0.03 part of DCP and 1 part of maleic anhydride in 10 parts of chloroform, mix well with 0.2 part of liquid paraffin, 0.1 part of AA and 0.2 part of BAM;

[0044] (3) 8 parts of EVA, 5 parts of antioxidant 264, 0.25 parts of CPL and 0.25 parts of DMAC are fully mixed evenly;

[0045] (4) and (5) The same method as in Example 1.

[0046] The shear strength is 5.45MPa, the peel strength is 4.83N / mm, the grafting rate is 10.3%, and the softening temperature is 90°C.

Embodiment 3

[0048] Adopt the same method as embodiment 1, wherein:

[0049] (1) 80 parts of HDPE and 20 parts of LDPE are irradiated for 3 minutes under a 1.0kGy irradiation source for modification;

[0050] (2) Dissolve 0.02 parts of BPO, 0.06 parts of DCP and 3 parts of maleic anhydride in 15 parts of benzene, mix well with 0.3 parts of liquid paraffin, 0.3 parts of AA and 0.3 parts of 2-EHAM;

[0051] (3) 9 parts of EVA, 7 parts of antioxidant 1076, 0.40 parts of DMF and 0.40 parts of DMAC are fully mixed;

[0052] (4) and (5) The same method as in Example 1.

[0053] The shear strength is 4.63MPa, the peel strength is 4.43N / mm, the grafting rate is 12.7%, and the softening temperature is 92°C.

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Abstract

The invention discloses hot melt glue for aluminum-plastic composite panel and a preparation method of the hot met glue. The hot melt glue is prepared by adopting the following raw materials in parts by weight: 100 parts of irradiation-modified polyethylene, 1-5 parts of maleic anhydride, 8-10 parts of ethylene vinyl acetate, 0.3-0.9 part of common modifier, 0.2-0.4 part of liquid paraffin, 0.04-0.16 part of an initiator, 10-20 parts of a solvent, 0.5-1.5 part of a cross-linking inhibitor and 5-10 parts of an antioxidant. According to the preparation method, the simplicity and the high efficiency are realized, the cost is low, the using amount of the poisonous and harmful solvent is reduced, the environment and the human health are protected, and the using range of the hot melt glue is enlarged.

Description

technical field [0001] The invention relates to a hot-melt adhesive for an aluminum-plastic composite board and a preparation method thereof. Background technique [0002] Aluminum-plastic composite panel, English name: aluminum plastic composite panel, referred to as aluminum-plastic panel, refers to a three-layer composite panel with plastic as the core layer and aluminum on both sides, and the surface of the product is covered with a decorative and protective coating. Or film as the decorative surface of the product. Since the aluminum-plastic composite panel was introduced to China from South Korea and Taiwan in the late 1980s and early 1990s, it has attracted people's attention and favor for its economical, colorful, simple construction, and good processing performance. [0003] The aluminum-plastic panel is composed of two materials with completely different properties. It not only retains the main characteristics of the original constituent materials metal aluminum a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/06C09J123/08C08F255/00C08F222/06C08F220/06C08F220/14C08F220/18C08F2/46
Inventor 王继虎温绍国宋诗高
Owner SHANGHAI UNIV OF ENG SCI
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