Color changing promoter composition as well as preparation method and application thereof

A composition and technology of changing additives, applied in color changing additive composition and its preparation and application field, can solve problems such as limited color difference contrast, flow marks or streaks, difficult to meet, etc., to improve color contrast and marking effect Consistent, good product quality

Active Publication Date: 2015-05-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, the ability of most polymer matrix materials to absorb energy is insufficient, and it is difficult to form high-contrast chromatic aberration
Usually, in order to improve the color difference contrast of the polymer matrix material, it is often necessary to select a suitable component as an additive (also known as an additive) of the matrix material and to change the physical state of the additive, for example: the world patent WO2009 / 003976 uses a laser absorber , thermoplastic polymers, compatibilizers, carrier polymers and other components are used as laser marking additives, and its laser absorbers are selected from at least two different metal oxides and metal hydroxides to form a higher color difference Contrast; the American Engelhard Company has developed a tin oxide and Sb for Nd: YAG laser 2 o 3 A laser absorber composed of calcined powder, but adding tin oxide or Sb alone 2 o 3 Can not get a good marking effect (see: Feng Chi, Wu Wenjing, Li Siyuan, Zhang Yong. Research progress of laser marking plastics. China Plastics, September 2011, Volume 25, Issue 9.); World Patent WO2011 / 050934 It is also necessary to use Bi 2 o 3 Two kinds of laser absorbers are compatible with bismuth citrate
In addition, choosing metal particles alone as a laser absorber will easily produce flow marks or streaks during marking, resulting in unclear color contrast, and it is also easy to degrade the polymer and foam, which will seriously affect the marking effect
[0005] In the prior art, it is difficult to form a high-contrast color difference by using metal particles or metal oxide marking additives alone, even if the patented product of the world patent WO2009 / 003976--Iriotec 8208 of Merck (Merck) adopts Antimony trioxide and antimony tin oxide are two kinds of laser absorbers, the color difference contrast formed by them is still limited, and it is difficult to meet the marking application that requires higher contrast
At present, there is no report that the combination of metal particles and metal oxides can greatly improve the contrast of color difference

Method used

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  • Color changing promoter composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Metal powder (core): Ag, particle size (D 50 ) is 0.5 μm;

[0067] Metal oxide (core): indium tin oxide, particle size (D 50 ) is 0.2 μm;

[0068] Thermoplastic polymer of the first shell: PA MDX6 (polyamide MDX6), Mitsubishi Engineering 1022H;

[0069] Compatibilizer for the second shell: ethylene-butyl acrylate-maleic anhydride copolymer, Akema, Lotader 3210;

[0070] Accelerator: dipentaerythritol phosphate (Guangzhou Ruidao Chemical Co., Ltd.)

[0071] Carrier polymer: high-density polyethylene, melt index 0.5g / 10min (190°C);

[0072] Mix 39.6 parts of PA MDX6, 0.3 parts of Ag powder, 60.0 parts of indium tin oxide, and 0.1 parts of dipentaerythritol phosphate (parts by weight), and then use a twin-screw extruder to blend into a homogeneous mixture. The blending temperature is 240 ° C ~ 260°C;

[0073] Next, take 40.0 parts of the above mixture, 10.0 parts of ethylene-butyl acrylate-maleic anhydride copolymer, and 50.0 parts of high-density polyethylene (parts...

Embodiment 2

[0077] Metal powder (core): Zn, particle size (D 50 ) is 55 μm;

[0078] Metal oxide (core): antimony trioxide, particle size (D 50 ) is 10 μm;

[0079] Thermoplastic polymer of the first shell: PC (polycarbonate), SABIC 241R

[0080] Compatibilizer for the second shell: ethylene-methyl acrylate-methacrylate glycidyl ether copolymer, Akema, Lotader AX8900;

[0081] Accelerator: zinc methyl ethyl phosphinate (Guangzhou Ruidao Chemical Co., Ltd.)

[0082] Carrier polymer: POE (ethylene-octene copolymer), Dupont 8150;

[0083] Mix 10.0 parts of PC, 10.0 parts of Zn powder, 75.0 parts of antimony trioxide, 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 250℃~270℃;

[0084] Next, take 5.0 parts of the above mixture, 0.2 parts of ethylene-methyl acrylate-glycidyl methacrylate copolymer, and 94.8 parts of POE (parts by weight) and continue mixing with a twin-screw extr...

Embodiment 3

[0088] Metal powder (core): Al, particle size (D 50 ) is 15 μm;

[0089] Metal oxide (core): tin dioxide, particle size (D 50 ) is 5 μm;

[0090] Thermoplastic polymer for first shell: PPS (polyphenylene sulfide), Phillips R-7-02

[0091] Compatibilizer for the second shell: polypropylene grafted with glycidyl methacrylate, grafting rate 0.5wt%, melt index 11g / 10min (230°C);

[0092] Accelerator: aluminum diethylphosphinate (Guangzhou Ruidao Chemical Co., Ltd.);

[0093] Carrier polymer: iPP (isotactic polypropylene), Sinopec T30S;

[0094] Mix 23.0 parts of PPS (-SH group exists at the end of the PPS molecular chain), 7.0 parts of Al powder, 68.0 parts of tin dioxide, and 2.0 parts of aluminum diethylphosphinate (parts by weight), and then use twin-screw extrusion Machine blending into a homogeneous mixture, the blending temperature is 290 ° C ~ 320 ° C;

[0095] Next, take 25.0 parts of the above mixture, 3.0 parts of polypropylene grafted glycidyl methacrylate, and 72...

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Abstract

The invention discloses a color changing promoter composition. The color changing promoter composition is prepared from the following components in parts by weight: 5.0-40 parts of a mixture, 0.2-10.0 parts of a compatibilizer and 50.0-94.8 parts of a carrier polymer, wherein the mixture is prepared from the following components in parts by weight: 0.3-10.0 parts of metal powder, 60.0-75.0 parts of a metal oxide and 10.0-39.6 parts of a thermoplastic polymer. The novel color changing promoter composition is capable of greatly increasing the color difference contrast of a mark and a matrix material. Particularly, according to the color changing promoter composition disclosed by the invention, after adding dipentaerythritol phosphate, methyl ethyl zinc phosphinic acid and the like as accelerators, the color difference contrast is high. Meanwhile, the invention also provides a method of preparing the color changing promoter composition with simpleness, convenience, easiness in operation and good quality of products.

Description

technical field [0001] The invention relates to a color change additive composition, a preparation method and application thereof. Background technique [0002] At present, there are many technologies for marking commodities, such as: screen printing, ink printing, embossing, etc. These marks are likely to cause marks on commodities due to friction, mechanical damage, chemical effects and similar effects during storage and transportation. At the same time, the above-mentioned marks are easy to be altered, which will also bring opportunities for criminals to manufacture fake and inferior products, and it is difficult to realize the permanent marking and anti-counterfeiting functions of the 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. It uses high-energy laser energy to irradiate the material to cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L77/00C08L23/08C08L69/00C08L81/02C08L51/06C08L23/12C08L75/04C08L67/02C08K3/08C08K3/22C08K5/521C08K5/5313C08J3/22
CPCC08J3/226C08J2323/06C08J2367/02C08J2375/04C08J2423/06C08J2423/08C08J2423/12C08L23/06C08L67/02C08L75/04C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L77/00C08L23/0869C08K2003/0806C08K2003/2231C08K5/521C08L23/0815C08L69/00C08K2003/0893C08K3/2279C08K5/5313C08L23/12C08L81/02C08L51/06C08K2003/0812
Inventor 周涛张集海文亮
Owner SICHUAN UNIV
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