Preparation method of hot-melt reaction type adhesive for composite material

A composite material, reactive technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, adhesives, etc., can solve the problems of poor environmental protection performance of materials, poor operating environment, and wide variety, and achieve excellent weather resistance, The effect of good handling stability and high compound fastness

Inactive Publication Date: 2010-06-09
BEIJING COMENS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are problems in adhesives for composite materials, mainly due to the poor environmental performance of materials, and the mixing and matching of two components is required in the p...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 of the present invention provides a method for preparing an adhesive for hot-melt reactive composite materials. The prepared adhesive has high initial adhesion fastness and stable performance, and is suitable for various composite substrates to prepare environmentally friendly composite materials. , the preparation method specifically includes:

[0018] Preparation of polyester polyol:

[0019] a. Esterification:

[0020] 10-20 parts by mass of dimethyl terephthalate, 25-35 parts by mass of ethylene glycol, 15-30 parts by mass of adipic acid, 5-10 parts by mass of sebacic acid, 25-35 parts by mass of Add 1,4-butanediol into the polyester synthesis kettle, heat up to 210-240°C, react for 6-8 hours, and the esterification is completed;

[0021] In the above-mentioned esterification step, keep the distillate of the distillate of the polyester synthesis tank at 1 to 3 parts by mass / hour; after the esterification reaction is completed, take a sample to measure...

Embodiment 2

[0032] This embodiment 2 provides a preparation method of an adhesive for hot-melt reactive composite materials. The prepared adhesive has high initial adhesion fastness and stable performance, and is suitable for various composite substrates to prepare hot-melt reactive environmental protection adhesives. Composite material, the preparation method specifically includes:

[0033] (1) Preparation of polyester polyol:

[0034] Get each raw material according to the following ratio:

[0035] Raw material ratio (parts by mass)

[0036] Dimethyl terephthalate 15

[0037] Ethylene glycol 25

[0038] Adipic acid 26

[0039] Sebacic acid 6

[0040] 1,4 Butanediol 28

[0041] The preparation method of polyester polyol:

[0042] a. Primary esterification:

[0043] 15 mass parts of dimethyl terephthalate, 25 mass parts of ethylene glycol, 6 mass parts of adipic acid, 6 mass parts of sebacic acid, 28 mass parts of 1,4 butanediol were added to In the polyester synthesis kettle, he...

Embodiment 3

[0058] Embodiment 2 of the present invention provides a method for preparing an adhesive for hot-melt reactive composite materials. The prepared adhesive has high initial adhesion fastness and stable performance, and is suitable for various composite substrates to prepare hot-melt reactive adhesives. The environmentally friendly composite material, the preparation method specifically includes:

[0059] (1) Preparation of polyester polyol:

[0060] Get each raw material by following mass ratio:

[0061] Raw material ratio (parts by mass)

[0062] Dimethyl terephthalate 20

[0063] Ethylene glycol 30

[0064] Adipic acid 15

[0065] Sebacic acid 10

[0066] 1,4 Butanediol 25

[0067] The method for preparing polyester polyol in this example is basically the same as the method for preparing polyester polyol given in Example 2. Please refer to Example 2, and will not repeat the description here.

[0068] (2) Compounding:

[0069] Get each raw material according to the foll...

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Abstract

The invention discloses a preparation method of a hot-melt reaction type adhesive for a composite material, belonging to the field of adhesive preparation. The method comprises the following steps of: preparing polyester polyol: esterifying and poly-condensing dimethyl terephthalate, glycol, hexane diacid, decanedioic acid and 1,4-butanediol under a certain condition to obtain polyester polyol; and mixing the prepared polyester polyol and polyether glycol, heating and formulating the prepared polyester polyol and polyether glycol by using MDI (diphenyl-methane-diisocyanate), tackifying resin and organosilicon coupling agent in proportion to obtain the hot-melt reaction type adhesive. Through the structural design of polyester segmer and the introduction of a polyether glycol segmer unit, the produced adhesive has very high combined strength and wide technical applicability for various composite base materials; and various composite materials can be produced through the adhesive. The composite materials made of the adhesive have excellent weather-resistant performance and excellent outdoor applicability.

Description

technical field [0001] The invention relates to the field of preparation of adhesives, in particular to a method for preparing adhesives for hot-melt reaction type composite materials. Background technique [0002] At present, through the use of adhesives to combine substances with different properties, it becomes a new type of composite material with unique properties and low cost, which is generally called hot-melt reactive composite material. In this type of composite materials, the inner layer materials mainly come from wood fiber composite materials, PVC extrusion materials and aluminum alloy materials, and the range of plastic substrates composited with them is quite wide, mainly plastic resin films, such as various thicknesses, various Various colors of composite polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc. This type of composite profile has the advantages of environmental protection, excellent processing performance and low cost. This type ...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J175/06
Inventor 冯祎沈峰
Owner BEIJING COMENS NEW MATERIALS
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