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Functional color change additive composition and preparation method thereof

A technology of changing auxiliary agent and composition, applied in the field of functional color changing auxiliary agent composition and preparation thereof, can solve the problems of increased overall cost, inability to meet color requirements, application limitations, etc., achieve safe large-scale industrialization, improve laser Marking effect, the effect of low production management cost

Active Publication Date: 2020-07-03
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the additive composition disclosed in the patent application has made a breakthrough in the effect of laser marking, when the additive is added to the polymer base material, it will significantly change the base color of the polymer, making it dark and gray, which cannot meet the requirements of laser marking. Basic color requirements, applications are significantly limited
In addition, metal powder is a regulated dangerous explosive, and its large-scale production and storage have great explosion hazards and hidden dangers. Therefore, using metal powder as a laser absorber increases safety hazards and overall costs, and cannot achieve large-scale preparation and industrialization. restricted

Method used

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  • Functional color change additive composition and preparation method thereof
  • Functional color change additive composition and preparation method thereof
  • Functional color change additive composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 Preparation of color-changing auxiliary agent and polymer template of the present invention

[0051] Metal oxide powder (core): tin dioxide, particle size (D 50 ) is 0.5 μm;

[0052] Thermoplastic polymer of the first shell: PA MDX6 (polyamide MDX6), Mitsubishi Engineering 1022H;

[0053] Compatibilizer for the second shell: ethylene-butyl acrylate-maleic anhydride copolymer, Akema, Lotader3210;

[0054] Accelerator: dipentaerythritol phosphate (Guangzhou Ruidao Chemical Co., Ltd.);

[0055] Carrier polymer: high-density polyethylene, melt index 0.5g / 10min (190°C).

[0056] 1. Preparation of color change additive

[0057] The first step: Mix 29.9 parts of PA MDX6, 70 parts of tin dioxide, and 0.1 part of dipentaerythritol phosphate (parts by weight), and then use a twin-screw extruder to blend into a uniform mixture. The blending temperature is 240 ° C ~ 260°C;

[0058] The second step: Next, take 90.0 parts of the above mixture, 6.0 parts of ethylene...

Embodiment 2

[0063] Embodiment 2 Preparation of color-changing auxiliary agent and polymer template of the present invention

[0064] Metal oxide powder (core): tungsten oxide, particle size (D 50 ) is 15 μm;

[0065] Thermoplastic polymer of the first shell: PC (polycarbonate), SABIC 241R;

[0066] Compatibilizer for the second shell: ethylene-methyl acrylate-methacrylate glycidyl ether copolymer, Akema, Lotader AX8900;

[0067] Accelerator: zinc methyl ethyl phosphinate (Guangzhou Ruidao Chemical Co., Ltd.);

[0068] Carrier polymer: POE (ethylene-octene copolymer), Dupont 8150.

[0069] 1. Preparation of color change additive

[0070] The first step: mix 10.0 parts of PC, 85.0 parts of tungsten oxide, and 5.0 parts of zinc methyl ethyl phosphinate (parts by weight), and then use a twin-screw extruder to blend into a uniform mixture. The blending temperature is 250 ℃~270℃;

[0071] The second step: Next, take 41.0 parts of the above mixture, 0.5 parts of ethylene-methyl acrylate-me...

Embodiment 3

[0076] Embodiment 3 Preparation of color-changing auxiliary agent and polymer template of the present invention

[0077] Metal salt powder (core): strontium titanate, particle size (D 50 ) is 3 μm;

[0078] Thermoplastic polymer for the first shell: PPS (polyphenylene sulfide), Phillips R-7-02;

[0079] The compatibilizer of the second layer of shell: polypropylene grafted glycidyl methacrylate, grafting rate 0.5wt%, melt index 11g / 10min (230 ℃);

[0080] Accelerator: aluminum diethylphosphinate (Guangzhou Ruidao Chemical Co., Ltd.);

[0081] Carrier polymer: iPP (isotactic polypropylene), Sinopec T30S.

[0082] 1. Preparation of color change additive

[0083] Step 1: Mix 28.0 parts of PPS (-SH group exists at the end of the PPS molecular chain), 70.0 parts of strontium titanate, and 2.0 parts of aluminum diethylphosphinate (parts by weight), and then use a twin-screw extruder to Blending into a homogeneous mixture, the blending temperature is 290 ° C ~ 320 ° C;

[0084]...

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Abstract

The invention relates to a functional color change additive composition and a preparation method thereof. The functional color change additive composition is prepared from the following components inparts by weight: 41.0 to 90.0 parts of a mixture, 0.5 to 6.0 parts of a bulking agent and 4.0 to 58.5 parts of a carrier polymer, wherein the mixture comprises a metal oxide or a metal salt, a thermoplastic polymer and an accelerant, and the weight ratio of the metal oxide or the metal salt to the thermoplastic polymer to the accelerant is (70.0-90.0): (5.0-29.9): (0.1-5.0). The color change auxiliary agent composition can form a mark with ultrahigh contrast ratio only by one absorbent, and meanwhile, the bottom color of the polymer substrate material cannot be obviously darkened and grayed, and the technical problems in the field are solved. The functional color change additive is suitable for different substrate materials, can meet the requirements for light color products in the industry, can achieve the marking effect of ultrahigh color difference contrast, and is wide in application prospect.

Description

technical field [0001] The invention belongs to the field of polymer material additives, and in particular relates to a functional color-changing additive composition and a preparation method thereof. Background technique [0002] At present, there are many technologies for marking commodities, such as screen printing, ink printing, embossing and so on. Due to friction, mechanical damage, chemical action and similar effects in the process of storage and transportation, the above marks are likely to cause the marks on the goods to be blurred and difficult to identify; Counterfeit and inferior products bring opportunities, and it is difficult to realize the permanent marking and anti-counterfeiting functions of products. [0003] In order to overcome the defects of the above-mentioned marking technology, researchers have developed a new method of marking polymer materials according to the characteristics of the marked object itself, that is, the laser marking method, which us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K9/10C08K3/22C08K3/34C08K5/521C08K5/5313C08J3/22C08L23/06C08L75/04C08L67/02C08L23/12
CPCC08J3/226C08J2323/06C08J2323/12C08J2367/02C08J2375/04C08K3/22C08K3/2279C08K3/34C08K5/521C08K5/5313C08K9/10C08K9/12C08K2003/2231C08K2003/2237C08K2003/2258
Inventor 周涛冯金彭小燕陈佳骏
Owner SICHUAN UNIV
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