Modified PP (polypropylene) material easy to sweat weld, high in transparency and easy to laser mark as well as preparation method and application of modified PP material easy to sweat weld, high in transparency and easy to laser mark

A hot-melt welding and laser marking technology, which is applied in the field of modified plastics, can solve the problems of easy hot-melt welding and the inability of modified PP materials to meet high transparency at the same time, so as to improve compatibility and laser marking clarity , Improve the effect of laser marking effect

Active Publication Date: 2022-04-12
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a modified PP material that is easy to be hot-melt welded, highly transparent, and easy to laser mark and its preparation method and application, so as to overcome the fact that the modified PP material in the prior art cannot simultaneously meet the requirements of high transparency, Defects of easy laser marking and hot melt welding

Method used

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  • Modified PP (polypropylene) material easy to sweat weld, high in transparency and easy to laser mark as well as preparation method and application of modified PP material easy to sweat weld, high in transparency and easy to laser mark
  • Modified PP (polypropylene) material easy to sweat weld, high in transparency and easy to laser mark as well as preparation method and application of modified PP material easy to sweat weld, high in transparency and easy to laser mark
  • Modified PP (polypropylene) material easy to sweat weld, high in transparency and easy to laser mark as well as preparation method and application of modified PP material easy to sweat weld, high in transparency and easy to laser mark

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Experimental program
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Effect test

preparation example Construction

[0064] Preparation method of modified PP material:

[0065] Mix the components according to the formula in Table 1 or Table 2, and then feed them from the main feeding port of the twin-screw extruder, melt, extrude, and granulate in the extruder to obtain, and the extruder melts and extrudes The processing conditions are as follows: the temperature in the first zone is 190-200°C, the temperature in the second zone is 190-200°C, the temperature in the third zone is 200-210°C, the temperature in the fourth zone is 200-210°C, the temperature in the fifth zone is 210-220°C, and the temperature in the sixth zone is 210°C. -220°C, the temperature in the seventh zone is 220-230°C, the temperature in the eighth zone is 220-230°C, the temperature in the ninth zone is 220-230°C, and the speed of the host is 250-350 rpm.

[0066] Performance Testing:

[0067] (1) Transparency: Tested according to the standard ASTM D1003-2013 method.

[0068] (2) The laser marking test method is as foll...

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Abstract

The invention relates to a modified PP (polypropylene) material easy for hot melting welding, high transparency and easy for laser marking as well as a preparation method and application thereof. The modified PP material comprises the following components in parts by weight: 59.2-83.8 parts of transparent PP; 10 to 20 parts of low isotacticity metallocene PP (Polypropylene); 2 to 8 parts of a hyperbranched polyacrylate oligomer; 2-6 parts of an ultraviolet absorbent; and 2-6 parts of chemically treated potassium bromide. The modified PP material has good sweat soldering performance, transparency and laser marking performance.

Description

technical field [0001] The invention belongs to the technical field of modified plastics, and in particular relates to a modified PP material which is easy to heat-melt weld, highly transparent, and easy to laser mark, and a preparation method and application thereof. Background technique [0002] With the improvement of living standards, consumers not only have higher requirements for the quality of goods purchased, but also have higher requirements for the exquisiteness of packaging. So far, the packaging box industry has a very large market capacity. Traditional packaging includes paper packaging, plastic packaging, and paper-plastic composite packaging. PP material is widely used in the plastic packaging box industry because of its low price, low density, good corrosion resistance, and recyclability. However, ordinary PP materials are crystalline materials, and crystallization will affect the transparency of the material; and some transparent modified PP materials, alth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L33/00C08L51/06C08K3/16C08K5/3475C08K5/132C08K9/04
CPCY02W30/80
Inventor 崔嵬李聪郝垠龙陆湛泉杨霄云陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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