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Tackifier and production method thereof

A production method and a tackifier technology, which are applied in the directions of adhesives, polymer adhesive additives, adhesive additives, etc., can solve the problems of unsatisfactory stability and cohesive force, achieve good economic benefits, increase the selling price, Excellent adhesion

Active Publication Date: 2012-11-14
兆舜科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the stability and cohesive force when the above two tackifiers are added to the product still cannot meet the existing needs.

Method used

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  • Tackifier and production method thereof
  • Tackifier and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Present embodiment raw material and proportioning ratio as shown in table 1:

[0054] Table 1

[0055] raw material name

Specification

Recipe (g)

1 hydroxy silicone oil

N=6~8

600

2KH570

≥97%

62

3KH560

≥97%

174.6

4 organic tin

0.6

[0056] Steps

[0057] (1) Put raw materials 1 and 3 into a 2-liter four-necked glass reaction bottle with speed-adjustable stirring, a thermometer, and a reflux condenser, and start stirring (the speed is 250-300 rpm);

[0058] (2) Turn on the cooling water of the condenser tube and heat up. When the temperature of the material reaches 40°C, drop the organotin into the reaction bottle with a dropper. After stirring evenly, add the material 2 dropwise with a constant pressure funnel. 30 minutes to finish dripping;

[0059] (3) After dripping, insulate and react at 50±2°C for 0.5 hours;

[0060] (4) Disassemble the condenser tube, connect the...

Embodiment 2

[0063] (1) Put 500 parts by weight of hydroxy silicone oil and 230 parts by weight of KH560 into a 2-liter four-necked glass reaction bottle with speed-adjustable stirring, a thermometer, and a reflux condenser, and start stirring (the speed is 200 rpm);

[0064] (2) Turn on the cooling water of the condenser and heat up. When the temperature of the material reaches 35°C, drop 0.2 parts by weight of organic tin into the reaction bottle with a dropper. After adding 70 parts by weight of KH570 dropwise;

[0065] (3) After dropping, keep it warm at 40°C for 0.6 hours;

[0066] (4) Remove the condenser tube, connect the vacuum tube, and remove the low boiling matter at -0.001MPa for 1.5 hours;

[0067] (5) Stop the vacuum, continue the reaction for 0.3 hours, stop heating, cool down naturally, and discharge the material after reaching room temperature.

Embodiment 3

[0069] (1) Put 700 parts by weight of hydroxy silicone oil and 120 parts by weight of KH560 into a 2-liter four-necked glass reaction bottle with speed-adjustable stirring, a thermometer, and a reflux condenser, and start stirring (the speed is 400 rpm);

[0070] (2) Turn on the cooling water of the condenser and heat up. When the temperature of the material reaches 45°C, drop 1.0 parts by weight of organotin into the reaction bottle with a dropper. After adding 50 parts by weight of KH570 dropwise;

[0071] (3) After dripping, keep warm at 60°C for 0.3 hours;

[0072] (4) Disassemble the condenser pipe, connect the vacuum pipe, and remove the low boiling matter at -0.005MPa for 0.5 hours;

[0073] (5) Stop the vacuum, continue the reaction for 0.5 hours, stop heating, cool down naturally, and discharge the material after reaching room temperature.

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Abstract

The invention relates to a tackifier which is prepared by the following steps of: adding 500-700 parts by weight of hydroxy silicone oil and 120-230 parts by weight of KH560 in a reactor; heating, slowly adding 0.2-1.0 parts by weight of organic tin at the temperature of 35 DEG C to 45 DEG C, slowly adding 50-70 parts by weight of KH570 under the temperature of 45 DEG C within 60min; reacting for more than 0.3h at the temperature of 40 DEG C to 60 DEG C; reacting for more than 0.5h under a vacuum condition, controlling the vacuum degree so that the material solution does not foam; and stopping vacuumizing, keeping on reacting for more than 0.3h, stopping heating, cooling, and discharging to the tackifier. The tackifier is colorless or faint yellow transparent liquid; when the tackifier is used in the two-component addition-type silicone resin, the inter-solubility is very good, and no chameleon phenomenon and peculiar smell appears; the bonding force is enhanced by 50% than that of the traditional tackifier; and the bonding force to PPA (polyphthalamide) reaches 100N, and meanwhile, the bonding problem of PC (poly carbonate) and metal sliver is solved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular, the invention relates to a tackifier, its production method and its application. Background technique [0002] Addition-type silicone rubber is a non-toxic, odorless, silicone material with excellent weather resistance and electrical insulation. It is one of the high-grade silicone varieties that have developed rapidly in recent years. Machinery, automobile, construction and other industries. However, since the molecule itself is non-polar, addition-type silicone rubber has poor adhesion when used as potting, coating, and insert injection molding materials. [0003] At present, there are three main methods to improve the adhesion between silicone rubber and various materials: one is to treat the surface of the substrate with a primer, which increases the production process and production time, reduces production efficiency, and at the same time primer Most of the flamma...

Claims

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Application Information

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IPC IPC(8): C08G77/16C08G77/08C09J183/04C09J11/08
Inventor 陈正旺陈芳
Owner 兆舜科技(广东)有限公司
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