Method for preparing flexible adhesive for water-resistant abrasive paper

An adhesive and flexible technology, used in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor durability, poor sandpaper softness, poor dimensional stability, etc. Good performance and high flexibility

Inactive Publication Date: 2016-12-07
张静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a water-resistant sandpaper flexible adhesive for the poor softness and poor dimensional stability of the prepared sandpaper that occurs during the use of traditional water-resistant sandpaper adhesives, resulting in poor durability. The preparation method of the viscous agent, the present invention first uses butadiene as a monomer, hydrogen peroxide as an initiator, reacts in an acetone system under the protection of argon, and obtains a viscous translucent concentrated solution through rotary evaporation and concentration, and then Soybean oil, epoxy resin, trimethylolpropane, etc. are added to the reaction kettle to prepare epoxy water-based alkyd resin concentrate, which is mixed with viscous translucent concentrate for cross-linking reaction to obtain water-resistant sandpaper flexible adhesive agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Inject argon gas into the reaction kettle at a rate of 3 mL / min until all the air is exhausted. Under the protection of argon gas, add 2 L of 8% butadiallyl acetone solution and 10 mL of 10% hydrogen peroxide in sequence. Under the conditions of 60°C and a rotating speed of 560r / min, stir and react at a constant temperature for 3h, then transfer the material in the reactor to a rotary evaporator, and at a temperature of 75°C, concentrate by rotary evaporation for 45min to obtain a viscous translucent concentrate. Standby; take 350mL soybean oil, 120mL trimethylolpropane, and 80mL epoxy resin E-51 in turn, add them to the reaction kettle, and stir at a constant temperature for 60 minutes at a temperature of 160°C and a rotation speed of 400r / min. In the state, add 100mL soybean oil, 50mL phthalic anhydride, 0.08g BC-98 esterification catalyst, then gradually increase the temperature to 240°C at a rate of 6°C / min, and stir at a constant temperature for 60min; Cool water t...

example 2

[0020]Admit argon into the reaction kettle at a rate of 4mL / min until all the air is exhausted. Under the protection of argon, add 3L of 9% butadiallyl acetone solution and 12mL of 12% hydrogen peroxide successively at temperature Under the conditions of 65°C and a rotating speed of 580r / min, stir and react at a constant temperature for 4h, then transfer the material in the reactor to a rotary evaporator, and at a temperature of 78°C, concentrate by rotary evaporation for 55min to obtain a viscous translucent concentrate. Standby; take 360mL soybean oil, 180mL trimethylolpropane, and 90mL epoxy resin E-51 in sequence, add them to the reaction kettle, and stir at a constant temperature for 75min at a temperature of 170°C and a rotation speed of 500r / min. In the state, add 110mL soybean oil, 60mL phthalic anhydride, 0.09g BC-98 esterification catalyst, then gradually increase the temperature to 250°C at a rate of 7°C / min, and stir at a constant temperature for 75min; Cool water ...

example 3

[0023] Inject argon into the reaction kettle at a rate of 5mL / min until all the air is exhausted. Under the protection of argon, add 4L of 10% butadiallyl acetone solution and 15mL of 15% hydrogen peroxide in sequence. Under the conditions of 70°C and a rotating speed of 600r / min, stir and react at a constant temperature for 5h, then transfer the material in the reactor to a rotary evaporator, and at a temperature of 80°C, concentrate by rotary evaporation for 60min to obtain a viscous translucent concentrate. Standby; take 400mL soybean oil, 200mL trimethylolpropane, and 100mL epoxy resin E-51 in turn, add them to the reaction kettle, and stir at a constant temperature for 90min at a temperature of 180°C and a speed of 600r / min. In the state, add 120mL soybean oil, 70mL phthalic anhydride, 0.1gBC-98 esterification catalyst, then gradually increase the temperature to 260°C at a rate of 8°C / min, and stir at a constant temperature for 90min; Cool water to cool the material in th...

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PUM

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Abstract

The invention discloses a method for preparing a flexible adhesive for water-resistant abrasive paper and belongs to the field of preparation of adhesives. The method comprises the steps of firstly, carrying out a reaction in an argon gas protection state in an acetone system in a manner of taking butadiene as a monomer and taking hydrogen peroxide as an initiator, carrying out rotary-evaporation concentrating so as to prepare a viscous semitransparent concentrated solution, then, adding soybean oil, epoxy resin, trimethylolpropane and the like into a reactor so as to obtain an epoxy aqueous alkyd resin concentrated solution, mixing the epoxy aqueous alkyd resin concentrated solution with the viscous semitransparent concentrated solution, and carrying out a cross-linking reaction, thereby obtaining the flexible adhesive for the water-resistant abrasive paper. According to the method, the self-prepared hydroxyl-terminated viscous semitransparent concentrated solution is mixed with epoxy modified aqueous alkyd resin, and then, a hydroxyl group and an epoxy group are subjected to a partial cross-linking reaction so as to achieve the aim of toughening; the prepared adhesive is applied to the water-resistant abrasive paper, the flexility of the abrasive paper can be obviously improved, and the requirements on subsequent sand planting are met.

Description

technical field [0001] The invention discloses a preparation method of a water-resistant sandpaper flexible adhesive, which belongs to the field of adhesive preparation. Background technique [0002] Sandpaper is a general term for abrasive tools made by adhering abrasive materials to soft substrates with adhesives. Sandpaper is mainly used for grinding and polishing the surfaces of wood, bamboo, glass, and various metal workpieces. [0003] The main raw materials of sandpaper are base paper, abrasive materials, and adhesives. In order to improve the grinding strength of the sandpaper, the base paper is not only required to be tough, but also wear-resistant and fold-resistant, and has good water resistance. Generally, kraft paper made from unbleached kraft wood pulp or other high-strength paper made from rag pulp and hemp pulp is used. Abrasive materials include artificial molten aluminum powder, silicon carbide, natural corundum, garnet, silica, iron oxide, glass shaving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J167/08C09J11/06C08G63/49
CPCC09J167/08C08G63/48C08K5/14C09J11/06
Inventor 张静许博伟
Owner 张静
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