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Preparation method and application of grafting-modified tackifying resin

A tackifying resin, graft modification technology, applied in the direction of graft polymer adhesives, adhesives, adhesive types, etc., can solve the problems of poor compatibility, high cost, affecting large-scale promotion, etc. Good capacitance, good bonding effect and excellent tackifying effect

Active Publication Date: 2017-10-17
广东省邦得利新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rosin resin is one of the most widely used tackifying resins in hot melt adhesive systems. Acrylic resins are also commonly used as tackifying resins in the market. Acrylic resins are directly added to hot melt adhesive systems as tackifying resins. Power, but it brings disadvantages such as poor compatibility and high cost, which affects large-scale promotion
And the method that adopts acrylic acid series monomer melt grafting to the modification of rosin resin to prepare tackifying resin has not yet been reported

Method used

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  • Preparation method and application of grafting-modified tackifying resin
  • Preparation method and application of grafting-modified tackifying resin
  • Preparation method and application of grafting-modified tackifying resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The graft modified tackifying resin of the present embodiment obtains according to the preparation method of following steps:

[0032] (1) Take the raw materials of following weight parts:

[0033]

[0034] (2) Rosin resin is crushed, in the dry reactor that thermometer, stirrer, reflux condenser are equipped with, add the rosin resin that pulverizes and other resins, add 40% grafting monomer and antioxidant stirring and dissolving, heat until completely melted;

[0035] (3) add initiator and disperse for 5 minutes again, keep warm for 1 hour;

[0036] (4) drop the remaining grafting monomers to start the grafting reaction, the temperature is controlled at 80-90°C, the dropwise addition is completed in 4 hours, and the temperature is kept for 1.5 hours;

[0037] (5) Cooling and discharging.

[0038] The grafted modified tackifying resin prepared in this example can be used directly as a hot melt adhesive, or as a tackifier for a hot melt adhesive, or as a compatib...

Embodiment 2

[0040] The graft modified tackifying resin of the present embodiment obtains according to the preparation method of following steps:

[0041] (1) Weigh the following raw materials in parts by weight

[0042]

[0043]

[0044] (2) Rosin resin is crushed, in the dry reactor that thermometer, stirrer, reflux condenser are equipped with, add the rosin resin that pulverizes and other resins, add 40% grafting monomer and antioxidant stirring and dissolving, heat until completely melted, and then the temperature is controlled at 70-80°C;

[0045] (3) Add initiator and disperse for 5 minutes;

[0046] (4) Add dropwise the remaining grafting monomers to start the grafting reaction, the temperature is controlled at 80-90° C., the dropwise addition is completed in 3 hours, and the insulation is kept for 1.5 hours;

[0047] (5) Cooling and discharging.

[0048] The grafted modified tackifying resin prepared in this example can be used directly as a hot melt adhesive, or as a tack...

Embodiment 3

[0050] The graft modified tackifying resin of the present embodiment obtains according to the preparation method of following steps:

[0051] (1) Weigh the following raw materials in parts by weight

[0052]

[0053]

[0054] (2) Rosin resin is crushed, in the dry reactor that thermometer, stirrer, reflux condenser are equipped with, add the rosin resin that pulverizes and other resins, add 40% grafting monomer and antioxidant stirring and dissolving, heat until completely melted, and then the temperature is controlled at 70-80°C;

[0055] (3) add initiator and disperse for 5 minutes again, keep warm for 1 hour;

[0056] (4) Add dropwise the remaining grafting monomers to start the grafting reaction, the temperature is controlled at 90-110° C., the dropwise addition is completed in 4.5 hours, and the temperature is kept for 1 hour;

[0057] (5) Cooling and discharging.

[0058] The grafted modified tackifying resin prepared in this example can be used directly as a ho...

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Abstract

The invention relates to a preparation method and application of grafting-modified tackifying resin; the preparation method comprises the steps of (1), weighing, by weight, 3.5-90 parts of rosin resin, 1-90 parts of other resins, 3.5-90 parts of grafting monomers, 0.2-0.4 part of an initiator, and 0.3-0.6 part of an antioxidant, the grafting monomers including acrylic monomers; (2) crushing the rosin resin, adding the crushed rosin resin and other resins into a reactor, adding 40% of the grafting monomers, adding the antioxidant, stirring for dissolving, and heating until full dissolution; (3) adding the initiator, and dispersing for 5 min; (4) dropwise adding the rest grafting monomers, and allowing grafting reaction to start; (5) cooling and discharging. The grafting-modified tackifying resin prepared herein may act alone as hot-melt adhesive resin, may also be added to other holt-melt adhesive systems to act as a tackifier for blended use, and may also act as a compatibilizer in a hot-melt adhesive system.

Description

technical field [0001] The invention relates to the technical field of polymer material preparation, in particular to a preparation method and application of a graft modified tackifying resin. Background technique [0002] Because of its environmental protection characteristics, the development and application of hot-melt adhesives are increasing, and a variety of hot-melt resins and additives are used in the formulation system of hot-melt adhesives. Rosin is a natural resin secreted by pine trees or pine tree trunks. After refining, rosin can be obtained, and rosin can be chemically modified to become rosin resin. Rosin resin is one of the most widely used tackifying resins in hot melt adhesive systems. Acrylic resins are also commonly used as tackifying resins in the market. Acrylic resins are directly added to hot melt adhesive systems as tackifying resins. However, it brings disadvantages such as poor compatibility and high cost, which affects large-scale promotion. Ho...

Claims

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Application Information

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IPC IPC(8): C08F289/00C08F291/00C08F277/00C08F220/18C08F220/06C08F220/28C09J151/00C08L51/00
CPCC09J151/003C08F277/00C08F289/00C08F291/00C08L51/003C08F220/18C08F220/1804C08F220/1808C08F220/1802C08F220/281
Inventor 许卫平余记乐
Owner 广东省邦得利新材料技术有限公司
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