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Primer-free polyurethane glass cement and preparation method thereof

A glass glue, polyurethane technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of increasing the coating primer process, increasing the cost of use, and the storage period being too short, avoiding the need for The effect of foaming phenomenon, saving process and fast curing speed

Active Publication Date: 2015-03-25
山东汉斯曼高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will increase the process of coating the primer, which is cumbersome to use and indirectly increases the cost of use
The adhesive strength of polyurethane is also an important factor in use. However, in the existing polyurethane synthesis technology, while the adhesive performance of polyurethane is improved, it will inevitably bring unfavorable factors such as toxic carcinogen xylene or its short storage period.

Method used

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  • Primer-free polyurethane glass cement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A primer-free polyurethane glass glue, which is composed of the following components in percentage by weight: 19.75% dioctyl phthalate, 38% polyurethane prepolymer, 18% calcium carbonate, 5.0% spherical Silica powder, 2.8% titanium dioxide, 1.0% calcium oxide, 10.0% carbon black, 5.0% meteorological silica, 0.05% dibutyltin dilaurate and 0.4% glycidyl ether oxypropyl trimethoxy Silane KH560.

[0031] The preparation method is as follows, based on the percentage of the total weight of the primer-free polyurethane glass glue to be prepared, the steps are as follows:

[0032] (1) Add 19.75% dioctyl phthalate and 38% polyurethane prepolymer that have been dehydrated into the reactor, and stir in vacuum for 30 minutes;

[0033] (2) Put 18% calcium carbonate, 5.0% spherical silicon micropowder, 2.8% titanium dioxide, 1.0% calcium oxide and 10.0% carbon black into the reactor, and stir in vacuum for 30 minutes;

[0034] (3) Continue to add 5.0% meteorological silica in the r...

Embodiment 2

[0042] A primer-free polyurethane glass glue, which is composed of the following components in percentage by weight: 19% dioctyl phthalate, 35% polyurethane prepolymer, 17% calcium carbonate, 6% spherical Silica powder, 2.5% titanium dioxide, 3% calcium oxide, 10.9% carbon black, 6% meteorological silica, 0.03% dibutyltin dilaurate and 0.57% glycidyl ether oxypropyl trimethoxy Silane KH560.

[0043] The preparation method is as follows, based on the percentage of the total weight of the primer-free polyurethane glass glue to be prepared, the steps are as follows:

[0044] (1) Add 19% dioctyl phthalate and 35% polyurethane prepolymer that have been dehydrated into the reactor, and stir in vacuum for 30 minutes;

[0045](2) 17% of calcium carbonate, 6% of spherical silicon micropowder, 2.5% of titanium dioxide, 3% of calcium oxide and 10.9% of carbon black that have been dried in advance are put into the reactor, and stirred in vacuum for 30 minutes;

[0046] (3) Continue to a...

Embodiment 3

[0049] A primer-free polyurethane glass glue, which is composed of the following components in percentage by weight: 19% dioctyl phthalate, 36% polyurethane prepolymer, 19% calcium carbonate, 5% spherical Silica powder, 2.5% titanium dioxide, 1% calcium oxide, 12.17% carbon black, 5% meteorological silica, 0.03% dibutyltin dilaurate and 0.3% glycidyl ether oxypropyl trimethoxy Silane KH560.

[0050] Its preparation method is as follows:

[0051] (1) Add 19% dioctyl phthalate and 36% polyurethane prepolymer that have been dehydrated into the reactor, and stir in vacuum for 30 minutes;

[0052] (2) 19% of calcium carbonate, 5% of spherical silicon micropowder, 2.5% of titanium dioxide, 1% of calcium oxide and 12.17% of carbon black dried in advance are put into the reactor, and stirred in vacuum for 30 minutes;

[0053] (3) Continue to add 5% meteorological silica in the reactor, stir for 30min;

[0054] (4) Finally, add 0.03% dibutyltin dilaurate and 0.3% glycidyloxypropyltr...

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Abstract

The invention belongs to the technical field of high polymer materials and preparation thereof, and particularly relates to primer-free polyurethane glass cement. The primer-free polyurethane glass cement comprises the following components in percentage by weight: 19-20% of dioctyl phthalate, 35-40% of polyurethane prepolymer, 17-20% of calcium carbonate, 5.0-6.0% of spherical silica powder, 2.5-3.0% of titanium dioxide, 1.0-5.0% of calcium oxide, 10.0-14.0% of carbon black, 5.0-6.0% of gas-phase silica, 0.03-0.06% of dibutyltin dilaurate and 0.3-0.6% of glycidoxy propyl trimethoxy silane KH560. The primer-free polyurethane glass cement provided by the invention can be adhered in a primer-free manner, thereby being environmental-friendly, economical and solvent-free, and the primer-free polyurethane glass cement has the advantages of high bonding strength, high curing speed, high thixotropy, etc. The primer-free polyurethane glass cement is widely used for adhering and sealing windshield glass and side window glass of railway vehicles, cars and ships with matrix iron plates and aluminum plates.

Description

technical field [0001] The invention belongs to the technical field of polymer materials and their preparation, and in particular relates to a primer-free polyurethane glass glue and a preparation method thereof. Background technique [0002] Polyurethane is a polymer material. It is widely used in daily life, such as paints and coatings in furniture, refrigerators and freezers in household appliances, roof waterproof insulation and interior and exterior wall coatings in the construction industry. It can also be made into various polyurethane materials such as polyurethane soles, polyurethane fibers, polyurethane sealants, etc. Generally speaking, polyurethane products have a wide range of adjustable properties, strong adaptability, resistance to biological aging, and moderate prices, and are widely used in many industries such as furniture, construction, and transportation. [0003] However, in the use of polyurethane, it is usually necessary to apply primer. This process...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J11/06C09J11/04C08G18/48C08G18/08
Inventor 亓书英杨士勇韩永德于虎
Owner 山东汉斯曼高分子材料有限公司
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