Polymer chemically-modified inorganic oxide particles and preparation method thereof, and applications of polymer chemically-modified inorganic oxide particles in laser sensitive materials

An inorganic oxide and chemical modification technology, which is applied in the field of laser sensitive materials and polymer composite materials, can solve the problems of poor dispersion, uneven dispersion and easy agglomeration of laser sensitive agents, so as to improve laser marking performance, The effect of high carbon formation rate
CN107189201AActive Publication Date: 2017-09-22CHANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2017-09-22

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Abstract

The present invention relates to the field of laser sensitive materials and polymer composite materials, more particularly to polymer chemically-modified inorganic oxide particles and a preparation method thereof, and applications of the polymer chemically-modified inorganic oxide particles in laser sensitive materials. The preparation method comprises: grafting a polymer chain having controlled molecular weight and controlled sequence structure on the surface of inorganic laser sensitive oxide particles (P) through active atom transfer radical polymerization, wherein the polymer chain comprises a chain segment (A) with characteristics of easy carbon forming and high residual carbon content and a chain segment (B) with an effect of interface compatibilization; and adding the modified inorganic oxide particles to polyolefin or a polyolefin blending material with poor laser energy sensitivity to prepare the laser sensitive material. According to the present invention, with the application of neodymium-yttrium-aluminum-doped garnet (Nd:YAG) laser device having a wavelength of 1064 nm to carry out laser labeling on the laser sensitive material, the results show that the modified inorganic oxide particles can improve the laser sensitivity of the polyolefin material, and have excellent mechanical properties.
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Description

technical field

[0001] The invention belongs to the field of laser sensitive materials and polymer composite materials, and in particular relates to a highly efficient polymer chemically modified inorganic oxide particle and a preparation method and application thereof. Background technique

[0002] Laser marking is the second largest field of laser industrial application after laser cutting. As a modern precision processing method, laser marking has unparalleled advantages compared with traditional marking methods such as ink printing, and the most important thing is that it will not pollute the environment. The laser used for laser marking has high flexibility and high reliability, so it is widely used in various fields such as metals, ceramics, and clothing. Among them, the Nd:YAG laser with a laser wavelength of 1064nm is ideal for metal and plastic marking, and is one of the most widely used lasers in laser medical treatment and laser processing.

[0003] Polypropylen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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