Preparation method of laser marking lubricant for ABS (acrylonitrile butadiene styrene) engineering plastics

A technology for laser marking and engineering plastics, applied in the field of preparation of laser marking lubricants, can solve the problems of poor mechanical properties of ABS engineering plastics, poor laser marking effect, etc., to improve mechanical properties and laser marking effects, and improve compatibility. Effect

Active Publication Date: 2017-10-20
常州可赛成功塑胶材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is: in the process of adding the laser marking lubricant for traditional ABS engineering plastics to the color masterbatch of ABS engineering plastics, it is difficult for the inorganic additives that play a marki

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Pour the laser absorber and the dopamine solution with a mass concentration of 2g / L into the beaker at a mass ratio of 1:10, and adjust the pH to 8.8 with a mass fraction of 8% sodium hydroxide solution, and then move the beaker into a digital display speed measuring constant temperature magnetic stirring At a temperature of 45°C and a rotating speed of 300r / min, the reaction was stirred at a constant temperature for 45 minutes. After the reaction was completed, the filter cake was obtained by filtration, and the resulting filter cake was placed in a vacuum freeze-drying box and freeze-dried for 2 hours. Dopamine The modified laser absorber is calculated in parts by weight, and 10 parts of dopamine-modified laser absorber and 10 parts of treatment agent are successively added into a three-necked flask, and the temperature is 120 °C, and the rotation speed is 600 r / min. Under the condition of constant temperature stirring reaction 40min, after the reac...

Example Embodiment

[0024] Example 2

[0025]Pour the laser absorber and the dopamine solution with a mass concentration of 2g / L into the beaker at a mass ratio of 1:15, and adjust the pH to 8.9 with a 9% sodium hydroxide solution, and then move the beaker into a digital display speed measuring constant temperature magnetic stirring At a temperature of 48°C and a rotation speed of 400r / min, the reaction was stirred at a constant temperature for 50 minutes. After the reaction was completed, the filter cake was obtained by filtration. The modified laser absorber is calculated in parts by weight, and 15 parts of dopamine-modified laser absorber and 30 parts of treatment agent are successively added to the three-necked flask, and the temperature is 130°C, and the rotation speed is 700r / min. Under the condition of constant temperature stirring reaction 60min, after the reaction is finished, cool naturally to room temperature to obtain a pretreated laser absorber, and mix and stir the gained pretreated...

Example Embodiment

[0026] Example 3

[0027] Pour the laser absorber and the dopamine solution with a mass concentration of 2g / L into the beaker at a mass ratio of 1:20, and adjust the pH to 9.0 with a 10% sodium hydroxide solution, and then move the beaker into a digital display speed measuring constant temperature magnetic stirring At a temperature of 55°C and a rotation speed of 500r / min, the reaction was stirred at a constant temperature for 60 minutes. After the reaction was completed, the filter cake was obtained by filtration. The modified laser absorber is calculated in parts by weight, and 20 parts of dopamine-modified laser absorber and 40 parts of treatment agent are successively added to the three-necked flask, and the temperature is 140°C, and the rotation speed is 800r / min. Under the condition of constant temperature stirring reaction 80min, after the reaction is finished, cool naturally to room temperature to obtain a pretreated laser absorber, and mix and stir the obtained pretre...

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PUM

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Abstract

The invention discloses a preparation method of a laser marking lubricant for ABS (acrylonitrile butadiene styrene) engineering plastics, and belongs to the technical field of a laser marking additive. According to the method, firstly, a Dopamine solution is used for soaking a modified laser absorbent; after filtering and drying are performed, the modified laser absorbent and a treating agent are mixed and react at high temperature, and are then dissolved in ethanediamine to prepare a laser absorbent ethanediamine solution; next, in a nitrogen protection state, heating is performed, so that stearic acid is melted and is then proportionally mixed with the laser absorbent ethanediamine solution for performing dehydration reaction; moisture in the system is taken out by nitrogen gas flow; finally, through extrusion pelletization, the laser marking lubricant for the ABS engineering plastics is obtained. The compatibility of the laser marking lubricant for the ABS engineering plastics with a plastic base body is good; the laser marking lubricant can be stably dispersed in the plastics; the mechanical strength of the product can be effectively improved; in the laser marking process, the formed marks are clear; the contrast is obvious; wide application prospects are realized.

Description

technical field [0001] The invention discloses a preparation method of a laser marking lubricant for ABS engineering plastics, and belongs to the technical field of laser marking additives. Background technique [0002] Laser marking is a new marking method. This method uses laser radiation to generate local high energy inside the polymer matrix. The energy is absorbed by the polymer matrix or additives and converted into heat energy. When the heat energy reaches a certain value, it will trigger Various physical or chemical changes inside the polymer cause carbonization, foaming, discoloration reactions, etc., resulting in a marking effect. At present, laser marking is mainly used for permanent marking, product anti-counterfeiting, tracking of important parts, etc. The effect of laser marking is related to the type of laser used and the nature of the plastic substrate. There are differences in the markability of different plastic substrates. Since most polymers have poor a...

Claims

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Application Information

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IPC IPC(8): C08K9/10C08K9/02C08K9/04C08K3/22C08L55/02
CPCC08K3/22C08K3/2279C08K9/02C08K9/04C08K9/10C08K2003/2231C08K2003/2241C08L55/02
Inventor 胡贵安许丽君
Owner 常州可赛成功塑胶材料有限公司
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