PP alloy having laser marking function and preparation method thereof

A laser marking and functional technology is applied in the field of PP alloy with laser marking function and its preparation. Effect

Inactive Publication Date: 2017-12-26
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, polypropylene itself is not resistant to laser engraving. Under the action of laser, only light gray and fuzzy marks can be formed on white parts, which is far from the effect and characteristics that laser marking should have, let alone the above mentioned features. The advantages of the laser marking compared with the traditional marking process
[0005] At present, there are similar marking aids on the market, but they often have higher requirements on the background color of the workpiece or the laser marking machine, such as only meeting the requirements of 1064nm lasers or dark color inter-marking, not color or Therefore, in order to meet the needs of the market, it is necessary to develop a marking masterbatch that can meet the needs of carbon dioxide lasers and solid-state ND:YAG, and can absorb lasers with a wavelength range of 308nm-10.6μm for use in conventional polyolefins

Method used

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  • PP alloy having laser marking function and preparation method thereof
  • PP alloy having laser marking function and preparation method thereof
  • PP alloy having laser marking function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0024] Mix in a high mixer for 5 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to granulate. The temperature of each zone of the extruder is 150°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 2

[0026] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0027] Mix in a high mixer for 10 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to granulate. The temperature of each zone of the extruder is 170°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 3

[0029] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0030] Mix in a high mixer for 15 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to pelletize. The temperature of each zone of the extruder is 150°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

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Abstract

The invention discloses a PP alloy having a laser marking function and a preparation method thereof. The PP alloy is prepared by the following components in parts by weight of 58-85 parts of polypropylene resin, 5-12 parts of polyethylene resin, 10-30 parts of an inorganic filling material, 0.5-2 parts of a photosensitizer, 0-0.8 parts of a light absorbent, 0-3.2 parts of toner, 0.2-0.5 parts of an anti-oxidant, and 0.2-1 part of other auxiliary agents through mixing and extrusion granulation. The disclosed preparation method of the PP alloy has the advantages of simple process and convenient operation, the PP alloy can satisfy the requirements of white-marked black-identity and black-marked white-identity for a product, also can satisfy the requirements of dark identity marked on the light color product and light color identity marked on the dark product, at the same time, can satisfy a carbon dioxide laser and a solid state ND: YAG laser, can absorb the laser with a wavelength scope of 308 nm-10.6 [mu]m, can solve the defect that polypropylene cannot resist laser makers, and greatly increase the usage scope of the polypropylene, and due to characteristic of laser makers, the manufacturer cost can be greatly saved.

Description

technical field [0001] The invention relates to the technical field of modified materials, in particular to a PP alloy with a laser marking function and a preparation method thereof. Background technique [0002] Polypropylene (referred to as PP) has the advantages of excellent mechanical properties, low density, good heat resistance, excellent bending fatigue resistance, chemical stability and electrical properties, and is one of the most widely used general-purpose plastics. Because of its good physical and mechanical properties and processing properties, it is widely used in automotive interior parts, including safes, main and auxiliary dashboards, door panels and pillars in the automotive field. [0003] Laser marking is a marking method that uses a high-energy-density laser beam to act on a target to cause physical or chemical changes on the target surface, thereby obtaining a visible pattern. The high-energy laser beam is focused on the surface of the material, causin...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L23/06C08L23/08C08K13/02C08K3/34C08K3/26C08K3/22C08K5/134C08K5/098
CPCC08L23/14C08L2205/035C08L2207/066C08L23/06C08K13/02C08K3/34C08K2003/265C08K3/346C08K2003/2241C08K5/1345C08K5/098C08L23/12C08L23/0815
Inventor杨桂生廖雄兵朱敏计娉婷
OwnerHEFEI GENIUS NEW MATERIALS