Alcohol-soluble polyurethane two-component adhesive

A polyurethane and two-component technology, applied in polyurea/polyurethane adhesives, adhesive types, adhesives, etc., can solve problems such as adhesives containing toxic substances, insufficient surface tension of composite films, and toxic operations , to achieve good anti-slip performance, short manufacturing process, and reduce toxic pollution

Inactive Publication Date: 2010-06-16
李银松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because there are many types of adhesives on the market, there are many disadvantages, such as the adhesive contains toxic substances, the manufacturing cost is high, the use is unsafe, the environment is polluted and the operation is poisonous; Relatively sensitive, the surface tension of the composite film is not enough, and the transparency is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention is described in further detail below:

[0029] An alcohol-soluble polyurethane two-component adhesive, including a main agent and a curing agent, the main agent is in the following weight ratio:

[0030] Manufacture of prepolymers

[0031] (a) Polyether polyol 45

[0032] (b) Pure MDI 21

[0033] (c) n-Hexane 1.2

[0034] Synthetic formulation

[0035] (i) Isopropanol 3.5

[0036] (ii) Acetone 5

[0037] (iii) Diethylenetriamine 4

[0038] (iv) Ethanol 33

[0039] Described curing agent raw material is mainly made by the mixture of epoxy resin, coupling agent, ethyl acetate, and its preparation process is:

[0040] (1) Preparation of prepolymer. Add polyether 210, pure MDI, and n-hexane to the reactor in proportion, slowly raise the temperature to 80-90°C, maintain the reaction for 1.5 hours, then continue to heat up to 96-105°C, react for 4 hours, and take samples to measure the NCO value (at 3.0 ~3.5% is acceptable), coo...

Embodiment 2

[0049] Embodiment 2 of the present invention is described in further detail below:

[0050] An alcohol-soluble polyurethane two-component adhesive, including a main agent and a curing agent, the main agent is in the following weight ratio:

[0051] Manufacture of prepolymers

[0052] (a) Polyether polyol 55

[0053] (b) Pure MDI 35

[0054] (c) n-Hexane 1.4

[0055] Synthetic formulation

[0056] (i) Isopropanol 7

[0057] (ii) Acetone 6

[0058] (iii) Diethylenetriamine 5

[0059] (iv) Ethanol 35

[0060] Described curing agent raw material is mainly made by the mixture of epoxy resin, coupling agent, ethyl acetate, and its preparation process is:

[0061] (1) Preparation of prepolymer. Add polyether 210, pure MDI, and n-hexane to the reactor in proportion, slowly raise the temperature to 80-90°C, maintain the reaction for 1.5 hours, then continue to heat up to 96-105°C, react for 4 hours, and take samples to measure the NCO value (at 3.0 ~3.5% is acceptable), coole...

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PUM

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Abstract

The invention belongs to the refined chemical field, and relates to an adhesive, in particular to alcohol-soluble polyurethane two-component adhesive and a preparation method thereof. The alcohol-soluble polyurethane two-component adhesive comprises main agents and curing agents, and is characterized in that the weight ratio of the main agents and firming agents is 6-8: 1, the curing agents are prepared from the mixture of epoxide resin, coupling agents and ethyl acetate, and the main agents are prepared by mixing performed polymer and Schiff base. The invention has the characteristics of short technical process for manufacturing products, low decrement, easy operation and reliable product quality.

Description

technical field [0001] The invention belongs to the field of fine chemicals and relates to an adhesive, in particular to an alcohol-soluble polyurethane two-component adhesive and a preparation method. Background technique [0002] Because there are many types of adhesives on the market, there are many disadvantages, such as the adhesive contains toxic substances, the manufacturing cost is high, the use is unsafe, the environment is polluted and the operation is poisonous; Relatively sensitive, the surface tension of the composite film is not enough, and the transparency is not good. How to solve the shortage of existing adhesives on the market, provide an adhesive that can be used in any climate environment, has low production cost, has no pollution to end products, is beneficial to environmental protection, and has a scientific and reasonable production process that is easy for industrial production. Agent, exactly the problem that the inventor will solve. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/12
Inventor 李银松
Owner 李银松
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