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Special binder of reflecting material and production thereof

A technology of reflective materials and adhesives, applied in the direction of adhesive types, polyurea/polyurethane adhesives, adhesives, etc., can solve the problems of yellowing and poor initial adhesion of products, and achieve excellent reflective effect. , low cost, excellent adhesion and aging resistance

Inactive Publication Date: 2007-09-19
NANTONG GAOMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adhesives made of polyether polyurethane generally have poor initial adhesion, and in addition, they often use aromatic isocyanates, which makes the product prone to yellowing under sunlight conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] Select the following ingredients and their weight percentages to make A component and B component respectively, and then make adhesive.

[0033] raw material

Proportion

Polyethylene isophthalate-neopentyl glycol ester diol

Isophorone diisocyanate

ethyl acetate

γ-(Methacryloyloxy)propyltrimethoxysilane

Alkane (KH560)

stannous octoate

2-(2'-Hydroxy-3',5'-bis(α,α-dimethylbenzyl

Base) phenyl) benzotriazole (UV234)

35％

9％

55％

0.99％

0.06％

0.04％

[0034] A component preparation process:

[0035] Add polyethylene isophthalate-neopentyl glycol ester diol, isophorone diisocyanate (IPDI), and ethyl acetate in proportion to the reaction kettle, heat up to 80±5°C for 1 hour, cool down to At 60°C, add stannous octoate, naturally raise the temperature to 75°C and continue to react for 1 hour, drop to room temperature and take a sample to test the viscosity is 4500mPa.s, the solid content is 5...

example 2

[0041] Select the following ingredients and their weight percentages to make A component and B component respectively, and then make adhesive.

[0042] raw material

Proportion

Poly(Neopentyl Glycol Adipate)-1,6 Hexylene Glycol Ester Di

Alcohol

Terexylylene diisocyanate (XDI)

acetone

Vinyl tri-tert-butylperoxysilane

(KH590)

Triethylamine

2-Hydroxy-4-n-octyloxybenzophenone

(UV531)

32％

15％

52％

0.98％

0.01％

0.01％

[0043] A component preparation process:

[0044] Add polyneopentyl adipate-1,6-hexanediol ester diol, XDI, and acetone into the reaction kettle in proportion, and raise the temperature to 80±5° C. for 1 hour. The temperature was lowered to 60°C, triethylamine was added, and the temperature was naturally raised to 75°C to continue the reaction for 1 hour. The viscosity is 4000mPa·s and the solid content is 53% when the temperature is lowered and the sample is tested. Aft...

example 3

[0050] This example is an application example.

[0051] The product of example 1 and 2 is applied to the safety reflective vest. Specific usage method:

[0052] Firstly, the glass beads are pressed on the polyethylene film under the condition of 120°C, and the aluminum layer is sprayed with a thickness of 2 μm;

[0053] Then apply this adhesive on the designated part of the safety reflective vest with a coating thickness of 15μm, and dry the solvent thoroughly at 80°C;

[0054] Finally, the polyethylene film pressed with aluminized glass beads is attached to the reflective police uniform, aged at 65°C for 24 hours, and the polyethylene film is peeled off.

[0055] Effect:

[0056]1. Washing test:

[0057] operate

[0058] 2. Reflectivity test:

[0059] Number of experiments

[0060] 3. Sun yellowing test:

[0061] Coat the prepared adhesive on the surface of the polyester film, place it in the sun and observe the change of the adhesive film.

[0062...

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Abstract

A special binder for reflecting material and its production are disclosed. It is characterized by taking polyester polylol, solvent, isocyanate, coupler, catalyst and antiager as raw materials to prepare A component, taking isocyanate, low-molecular polylol and solvent as raw materials to prepare B component, and mixing A with B to obtain the binder. It achieves low cost, simple process, excellent binding and ageing-resistant performances.

Description

technical field [0001] The invention belongs to the technical field of polymer adhesives, and more specifically relates to an adhesive specially used for reflective materials. Background technique [0002] Traffic signs play an important role in traffic management and traffic safety. There are many kinds of traffic signs, but in the past, most of them were sprayed with ordinary paint, and the display effect at night was poor, so it was difficult to effectively prevent traffic accidents. Now, foreign traffic signs have generally used directional reflective materials. This kind of sign is irradiated with the light of the car, so that the driver can see the pattern on the card surface hundreds of meters away, which is greatly conducive to safe driving. In addition, facilities such as reflective police uniforms, reflective isolation belts, reflective road signs, reflective marking lines, and reflective license plates are also being promoted. [0003] The bonding of reflective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/06C08J5/12
Inventor 赫长生沈峰邓煜东
Owner NANTONG GAOMENG NEW MATERIAL
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