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CN-121991424-A - Anti-counterfeiting master batch for automobile manufacturing and preparation and identification methods thereof

CN121991424ACN 121991424 ACN121991424 ACN 121991424ACN-121991424-A

Abstract

The embodiment of the application provides an anti-counterfeiting master batch for automobile manufacturing and a preparation and identification method thereof. The anti-counterfeiting master batch comprises carrier resin, an anti-counterfeiting tracking agent and a dispersing agent, wherein the anti-counterfeiting tracking agent comprises at least two metals or compounds thereof, the metals are selected from Mg、Ca、Sr、Ba、Al、Ti、Zr、Hf、Nb、Ta、Mo、W、Mn、Fe、Co、Ni、Cu、Zn、Ga、Ge、Sn、Sb、Bi、Y、La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb and Lu, and the at least two metals or compounds thereof have a selected mass ratio. The application solves the technical problem of providing the anti-counterfeiting master batch for being added into plastics for automobile manufacturing, and the anti-counterfeiting master batch can realize the use safety of automobile plastic materials and the reliability of anti-counterfeiting tracing.

Inventors

  • CHEN LUYU

Assignees

  • 奇瑞汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20260116

Claims (10)

  1. 1. An anti-counterfeiting masterbatch for automotive manufacture, the anti-counterfeiting masterbatch comprising a carrier resin, an anti-counterfeiting tracking agent and a dispersing agent, the anti-counterfeiting tracking agent comprising at least two metals or compounds thereof, the metals selected from Mg、Ca、Sr、Ba、Al、Ti、Zr、Hf、Nb、Ta、Mo、W、Mn、Fe、Co、Ni、Cu、Zn、Ga、Ge、Sn、Sb、Bi、Y、La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb and Lu, the at least two metals or compounds thereof having a selected mass ratio therebetween.
  2. 2. The anti-counterfeiting masterbatch according to claim 1 wherein the metal compound is an inorganic compound of the metal selected from MgO、CaO、CaCO 3 、SrTiO 3 、BaSO 4 、Al 2 O 3 、TiO 2 、ZrO 2 、HfO 2 、Nb 2 O 5 、Ta 2 O 5 、MoO 3 、WO 3 、MnO、MnO 2 、Mn 3 O 4 、Fe 2 O 3 、Fe 3 O 4 、CoO、NiO、CuO、Cu 2 O、ZnO、Ga 2 O 3 、GeO 2 、SnO 2 、Sb 2 O 3 、Bi 2 O 3 、Y 2 O 3 、La 2 O 3 、CeO 2 、Pr 6 O 11 、Nd 2 O 3 、Sm 2 O 3 、Eu 2 O 3 、Gd 2 O 3 、Tb 4 O 7 、Dy 2 O 3 、Ho 2 O 3 、Er 2 O 3 、Tm 2 O 3 、Yb 2 O 3 and Lu 2 O 3 .
  3. 3. The anti-counterfeiting masterbatch according to claim 1 or 2, wherein the content of the anti-counterfeiting tracking agent in the anti-counterfeiting masterbatch is 5% -15% in terms of mass percentage.
  4. 4. The anti-counterfeiting master batch according to claim 1 or 2, wherein the selected mass ratio between the at least two metals or compounds thereof is a reduced minimal integer ratio that follows a prime or fibonacci relationship; Preferably the anti-counterfeiting tracking agent comprises two metals or compounds thereof in a selected mass ratio of 1:2, 1:3, 1:5, 1:7, 2:3, 2:5, 2:7, 3:5, 3:7 or 5:7; Preferably the anti-counterfeiting tracking agent comprises three metals or compounds thereof in a selected mass ratio of 1:2:3, 1:2:4, 1:2:5, 1:2:7, 1:3:5, 1:3:7, 1:5:7, 2:3:5, 2:3:7, 2:5:7, or 3:5:7; Preferably the anti-counterfeiting tracking agent comprises four metals or compounds thereof, wherein the mass ratio of the four metals or compounds thereof is selected to be 1:2:3:5, 1:2:3:7, 1:2:5:7, 1:3:5:7 or 2:3:5:7; Preferably the anti-counterfeiting tracking agent comprises five metals or compounds thereof, wherein the mass ratio of the five metals or compounds thereof is 1:2:3:5:7 or 1:2:3:5:8.
  5. 5. The anti-counterfeiting masterbatch according to claim 1 or 2, characterized in that, The anti-counterfeiting tracking agent consists of three substances, namely ZnO, caO and BaSO 4 , wherein the mass ratio of ZnO to CaO to BaSO 4 is 1:2:4; the anti-counterfeiting tracking agent consists of ZnO, caO, fe, mnO 2 and BaSO 4 , wherein the mass ratio of ZnO to CaO to Fe to MnO 2 ：BaSO 4 is 1:2:3:5:8; The anti-counterfeiting tracking agent consists of three substances of Fe 2 O 3 、Fe 3 O 4 and BaSO 4 , wherein the mass ratio of Fe 2 O 3 ：Fe 3 O 4 ：BaSO 4 is 1:2:3; The anti-counterfeiting tracking agent consists of SnO 2 and Y 2 O 3 , wherein the mass ratio of SnO 2 ：Y 2 O 3 is 1:2; The anti-counterfeiting tracking agent consists of CeO 2 and Pr 6 O 11 , wherein the mass ratio of CeO 2 ：Pr 6 O 11 is 1:2, or The anti-counterfeiting tracking agent consists of CeO 2 and Fe 3 O 4 , wherein the mass ratio of CeO 2 ：Fe 3 O 4 is 1:2.
  6. 6. The anti-counterfeiting masterbatch according to claim 1 or 2, wherein the content of the carrier resin in the anti-counterfeiting masterbatch is 30% -70% and the content of the dispersing agent is 2% -8% in terms of mass percentage, the carrier resin comprises one thermoplastic resin selected from polypropylene, polyethylene terephthalate, polyamide, polycarbonate and thermoplastic polyurethane, and the dispersing agent comprises one of polyethylene wax and polypropylene wax; preferably, the anti-counterfeiting master batch further comprises an antioxidant and a coupling agent, wherein the content of the antioxidant and the coupling agent in the anti-counterfeiting master batch is 0.3% -1% and 0.2% -1% respectively in terms of mass percent; Preferably, the anti-counterfeiting master batch further comprises carbon black, and the content of the carbon black in the anti-counterfeiting master batch is 20% -40% by mass.
  7. 7. A process for preparing a security masterbatch according to any one of claims 1 to 6, characterized in that it comprises the following steps: s1, mixing all components in the anti-counterfeiting master batch according to a formula proportion to obtain a mixture; S2, extruding the mixture by adopting an extruder to obtain an extruded material strip; s3, carrying out water cooling and granulating on the material strips to obtain the anti-counterfeiting master batch; Preferably, prior to step S1, the at least two metals or compounds thereof are surface modified with a coupling agent, more preferably a silane coupling agent; preferably, in the step S1, mixing the components in the anti-counterfeiting master batch by adopting an internal mixer, wherein the rotation speed of the internal mixer is preferably 40-60 rpm, the temperature is 130-220 ℃, and the internal mixing time is 450-600S; preferably in step S2, the extruder is a twin screw extruder, the extrusion temperature preferably being 20-40 ℃ above the melting point of the carrier resin; preferably, in the step S3, anti-counterfeiting master batch with the particle size of 2-4 mm is obtained; Preferably, after step S3, the anti-counterfeit master batch is dehydrated and dried.
  8. 8. A plastic composition for automotive manufacture, characterized in that it comprises a plastic matrix and an anti-counterfeiting masterbatch according to any one of claims 1 to 6.
  9. 9. Use of the anti-counterfeiting masterbatch according to any one of claims 1 to 6 or the plastic composition according to claim 8 for manufacturing an automobile, preferably for manufacturing an interior or exterior part of an automobile.
  10. 10. A method for identifying the anti-counterfeiting masterbatch according to any one of claims 1 to 6 in a plastic sample, characterized in that the method comprises the steps of: s1, carrying out X-ray fluorescence spectrum analysis on the anti-counterfeiting master batch according to any one of claims 1 to 6, and obtaining and storing characteristic X-ray fluorescence spectrum data of the anti-counterfeiting master batch; s2, performing X-ray fluorescence spectrum analysis on the plastic sample to obtain characteristic X-ray fluorescence spectrum data of the plastic sample; S3, comparing the characteristic X-ray fluorescence spectrum data of the plastic sample with the characteristic X-ray fluorescence spectrum data of the anti-counterfeiting master batch, and if the comparison result reaches a preset similarity threshold value, confirming that the anti-counterfeiting master batch exists in the plastic sample; the X-ray fluorescence spectroscopy is preferably performed in step S1 and step S2 using a hand-held X-ray fluorescence spectrometer, Preferably in step S1, the characteristic X-ray fluorescence spectrum data of the anti-counterfeiting master batch is stored in a cloud database, and preferably in step S3, the characteristic X-ray fluorescence spectrum data of the plastic sample is uploaded to the cloud database, and compared with the characteristic X-ray fluorescence spectrum data of the anti-counterfeiting master batch in the cloud database, Preferably, the predetermined similarity threshold is at least 85% similarity, more preferably at least 90% similarity, most preferably at least 95% similarity, Preferably, the plastic sample is a plastic molded part sample, more preferably an automotive interior or exterior plastic part sample.

Description

Anti-counterfeiting master batch for automobile manufacturing and preparation and identification methods thereof Technical Field The embodiment of the application relates to the field of automobile manufacturing, in particular to an anti-counterfeiting master batch for automobile manufacturing and a preparation and identification method thereof. Background In the field of high polymer materials, particularly in the field of automobile manufacturing, anti-counterfeiting and traceability technologies for virgin and recycled plastics have become key to ensuring the quality of materials and the safety of supply chains. Currently, the widely adopted anti-counterfeiting technology in the industry mainly relies on the addition of fluorescent tracers to provide detectable identification. Fluorescent tracers are favored for their unique response under uv light, however, this technology suffers from various limitations and challenges in practical applications. Fluorescent tracers, such as the common indocyanine green (ICG), have a weak signal penetration capacity inside the material. This characteristic is particularly evident when handling dark, thick-walled or composite materials, resulting in a limited effective detection range of the marking, and difficulty in achieving comprehensive anti-counterfeit verification in complex articles. Some fluorescent indicators are susceptible to performance degradation, such as photobleaching, under sustained ultraviolet light or other environmental factors (e.g., temperature, pH, humidity), which directly affects the long-term visibility and traceability of the label, thereby reducing its reliability in the supply chain. In polymeric materials, fluorescent tracers may migrate or precipitate over time, especially enriching at the surface of the plastic matrix. This may not only affect the appearance of the article, but may also cause environmental compliance problems, particularly in industries where material safety is critical, such as automotive manufacturing, which should be avoided. Furthermore, fluorescent tracers often provide a single identification feature, which is easily imitated by reverse engineering, and which is obviously lacking in security at a single level and lacks multi-level protection for the anti-counterfeiting of high value products or automotive plastic parts. For the field of automobile manufacturing, it is necessary to specifically consider forbidden/restricted bill of materials such as ELV (End of LIFE VEHICLES DIRECTIVE, i.e. scrapped vehicle instruction), REACH (Registration, evaluation, license and restriction regulation), GADSL (Global Automotive Declarable Substance List, i.e. global automobile reportable bill of materials) and the like in the automobile industry, to provide an anti-counterfeit master batch for addition to plastics for automobile manufacturing, which can realize the use safety of the plastic materials for automobiles and the reliability of anti-counterfeit tracing. There is currently no good solution to the above problems. Disclosure of Invention The embodiment of the application provides an anti-counterfeiting master batch for automobile manufacturing, which at least solves the technical problem that the prior art does not have the anti-counterfeiting master batch suitable for being added into plastic materials for automobile manufacturing. The anti-counterfeiting master batch can realize the use safety and anti-counterfeiting traceability reliability of automobile plastic materials. According to one aspect of an embodiment of the present application, there is provided a security master batch for automotive manufacture, the security master batch comprising a carrier resin, a security tracking agent and a dispersing agent, the security tracking agent comprising at least two metals or compounds thereof, the metals being selected from Mg、Ca、Sr、Ba、Al、Ti、Zr、Hf、Nb、Ta、Mo、W、Mn、Fe、Co、Ni、Cu、Zn、Ga、Ge、Sn、Sb、Bi、Y、La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb and Lu, the at least two metals or compounds thereof having a selected mass ratio therebetween. Further, the compound of the metal is an inorganic compound of the metal, the inorganic compound being selected from MgO、CaO、CaCO3、SrTiO3、BaSO4、Al2O3、TiO2、ZrO2、HfO2、Nb2O5、Ta2O5、MoO3、WO3、MnO、MnO2、Mn3O4、Fe2O3、Fe3O4、CoO、NiO、CuO、Cu2O、ZnO、Ga2O3、GeO2、SnO2、Sb2O3、Bi2O3、Y2O3、La2O3、CeO2、Pr6O11、Nd2O3、Sm2O3、Eu2O3、Gd2O3、Tb4O7、Dy2O3、Ho2O3、Er2O3、Tm2O3、Yb2O3 and Lu 2O3. Further, the content of the anti-counterfeiting tracking agent in the anti-counterfeiting master batch is 5% -15% by mass. Further, the selected mass ratio between at least two metals or compounds thereof is the reduced simplest integer ratio, and follows a prime number sequence or a fibonacci number sequence relation; preferably, the anti-counterfeiting tracking agent comprises two metals or compounds thereof, wherein the selected mass ratio of the two metals or compounds thereof is 1:2, 1:3, 1:5, 1:7, 2:3, 2:5, 2:7, 3:5, 3:7, 5:7; Preferably, the an