Preparation method of binding agent applied to environment-friendly aluminum structure composite material

A composite material, environmentally friendly technology, applied in the direction of adhesive types, polyether adhesives, polyurea/polyurethane adhesives, etc., can solve the problems of irritating gas volatilization, poor applicability, high cost, and achieve The effect of high compound fastness, excellent applicability and excellent weather resistance

Inactive Publication Date: 2012-12-12
NANTONG GAOMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are problems with adhesives for composite materials, mainly because the environmental performance and impact strength of the composite materials obtained after bonding are poor. Due to the poor environmental performance of epoxy adhesives, toxic and irritating gases volatilize during the operation process. , the product has poor civil performance, poor applicability, and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The first embodiment provides a method for preparing an adhesive for an environment-friendly aluminum structure composite material. The prepared adhesive has excellent compounding properties and stable operation performance, and is suitable for compounding various aluminum substrates to prepare an environment-friendly compound material. The preparation method specifically includes:

[0018] To prepare polyester polyester:

[0019] a. Esterification:

[0020] 10-20 parts by mass of dimethyl terephthalate, 25-35 parts by mass of ethylene glycol, 20-40 parts by mass of adipic acid, and 25-35 parts by mass of 1,4-butanediol are added to the polymer. In the ester synthesis kettle, the temperature is raised to 210 to 240° C., and the reaction is performed for 6 to 8 hours, and the esterification is completed; in this esterification step, the distillate of the polyester synthesis kettle is kept stable at 1 to 3 parts by mass / After the esterification reaction is completed, s...

Embodiment 2

[0031] The second embodiment provides a method for preparing an adhesive for an environmentally friendly aluminum structure composite material. The prepared adhesive can be used for compounding various aluminum substrates to prepare an environmentally friendly composite material. The preparation method specifically includes:

[0032] (1) Preparation of polyester polyol:

[0033] Take each raw material according to the following proportions:

[0034] Raw material ratio (mass parts)

[0035] Dimethyl terephthalate 15

[0036] Glycol 20

[0037] Adipic acid 40

[0038] 1,4 Butanediol 25

[0039] To prepare polyester polyols:

[0040] a. Esterification:

[0041] 15 parts by mass of dimethyl terephthalate, 20 parts by mass of ethylene glycol, 40 parts by mass of adipic acid, and 25 parts by mass of 1,4 butanediol were added to the polyester synthesis kettle, and the temperature was raised to 220 ℃, react for 8 hours to complete the esterification; during the esterification p...

Embodiment 3

[0058] The third embodiment provides a preparation method of an adhesive for an environmentally friendly aluminum structure composite material. The prepared adhesive can be used for compounding various aluminum substrates to prepare an environmentally friendly composite material. The preparation method specifically includes:

[0059] (1) Preparation of polyester polyol:

[0060] Take the raw materials according to the following mass ratios:

[0061] Raw material ratio (mass parts)

[0062] Dimethyl terephthalate 20

[0063] Glycol 30

[0064] Adipic acid 25

[0065] 1,4 Butanediol 25

[0066] The method for preparing the polyester polyol in this embodiment is basically the same as the method for preparing the polyester polyol given in the second embodiment, and reference may be made to the second embodiment, which will not be repeated here. The esterification step for preparing polyester polyol is completed, and the acid value of the sampled product is measured to be 15 m...

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Abstract

The invention discloses a preparation method of a binding agent applied to an environment-friendly aluminum structure composite material and belongs to the field of binding agent preparation.The method comprises the following steps: esterifying dimethyl terephthalate, ethylene glycol, hexanedioic acid, 1,4 butanediol under certain conditions, then carrying out condensation polymerization on the raw materials to obtain polyester polyol; mixing the obtained polyester polyol with polyether glycol, then formulating the mixture by inorganic filler, tackified resin and organosilicon coupling agent according to proportion, thus obtaining an environment-friendly aluminum structure composite material compound binding agent.In the preparation method, through the design of the structure of polyesterchain segment, introduction of polyether glycol chain segment unit and adjustment of proportioning of different inorganic fillers, the prepared binding agent is endowed with extremely high aluminum base material strength and fine operability; in addition, with the binding agent adopted, various compound materials containing aluminum base materials can be produced.The aluminum honeycomb compound product made from the binding agent of the invention features high mechanical property, no discharge of toxic and irritant gas and excellent weather resistance.

Description

technical field [0001] The invention relates to the field of preparation of adhesives, in particular to a preparation method of an adhesive for environment-friendly aluminum structure composite materials. Background technique [0002] Currently, aluminum-containing substrates are composited together through aluminum structural adhesives, making it a new low-cost composite material with unique properties. A typical product of the composite material is an aluminum honeycomb panel, which has the advantages of light weight and less than 1 / 3 of the weight of an aluminum veneer. Because aluminum honeycomb panel has the advantages of good toughness and high strength, it can be used for heavy plate design, cheap maintenance, and has good sound insulation and heat insulation performance. This aluminum honeycomb composite material is mainly used in the construction and decoration industries, and can have excellent properties of high wind pressure resistance, shock absorption, sound i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J171/02C09J167/02C09J175/08C09J175/06
Inventor 冯祎沈峰
Owner NANTONG GAOMENG NEW MATERIAL
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