Degradable masterbatch and preparation method thereof

A technology of color masterbatch and toner, which is applied in the direction of coating, etc., can solve the problems of high cost of synthesis process, poor compatibility, and restrictions on the application of polylactic acid, etc., to achieve easy control of processing technology, huge and broad industrial application prospects The effect of industrial application prospect

Active Publication Date: 2012-10-24
广州保亮得塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polylactic acid has stable performance at room temperature and can be processed by common plastic processing methods, such as extrusion, injection molding, spinning, etc. However, due to raw materials and production processes, the cost of polylactic acid is relatively high, which greatly limits the application of polylactic acid
There are several disadvantages in polylactic acid: first, polylactic acid contains a large number of ester bonds, which has poor compatibility with other non-polar materials (such as polyolefins, etc.); second, the molecular weight distribution of the polymerization product is too wide, its strength is not high, and its brittleness is high The heat distortion temperature is low, the impact resistance is poor, the degradation cycle is difficult to control, the price is relatively expensive, and the synthesis process cost is high
CN 102040814 B protects a black masterbatch specially used for polylactic acid-based degradable plastics and its preparation method. The patent discloses that the carrier material of the existing black masterbatch has poor compatibility with polylactic acid, which affects the Mechanical Properties of Lactic Acid-Based Plastics and Dispersion of Carbon Black

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 The degradable color masterbatch of the present invention

[0021] Polylactic acid 45 parts

[0022] R-titanium dioxide 51.3 parts

[0023] EBS and silica 3.5 parts

[0024] Heat stabilizer 0.2 parts

[0025] Preparation process: Weigh the components of the prescription amount and add them to the mixer, and mix well, and the mixing time is preferably 3 minutes. Put the mixture into the screw extruder, set the extrusion temperature at 120°C, and extrude after 20 minutes at a constant temperature; cool the mixture with air blast; perform a performance test on the formed product, and use aluminum alloy after the performance test passes Plastic composite bags are packed into finished products.

Embodiment 2

[0026] Example 2 The degradable color masterbatch of the present invention

[0027] Polylactic acid 45 parts

[0028] R-titanium dioxide 50 parts

[0029] Phthalocyanine blue P. B. 15:3 1.3 parts

[0030] EBS and silica 3.5 parts

[0031] Heat stabilizer 0.2 parts

[0032] The preparation process is the same as in Example 1.

Embodiment 3

[0033] Example 3 The degradable color masterbatch of the present invention

[0034] 30 parts polylactic acid

[0035] Calcium sulfate 15 parts

[0036] R-titanium dioxide 51.3 parts

[0037] EBS and silica 3.5 parts

[0038] Heat stabilizer 0.2 parts

[0039] Preparation process: Weigh the components of the prescription amount and add them into the mixer, mix well and evenly, and the mixing time is 4 minutes. Put the mixture into the screw extruder, set the extrusion temperature to 140°C, and extrude after 20 minutes at a constant temperature; cool the extruded material with air blast; perform a performance test on the formed product, and use aluminum alloy after the performance test passes Plastic composite bags are packed into finished products.

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PUM

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Abstract

The invention provides degradable masterbatch and a preparation method thereof and belongs to the technical field of masterbatch manufacturing. The degradable masterbatch provided by the invention takes modified polylactic acid as a carrier, and the degradable masterbatch obtained by optimizing the proportioning of pigment and additives has the advantages of uniform coloring, low cost, easiness in process control and the like, thereby having wide industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of masterbatch production, and relates to a color masterbatch and a preparation method thereof, in particular to a degradable color masterbatch and a preparation method thereof. Background technique [0002] Color masterbatch is also called pigment preparation, which consists of three parts: pigment, carrier resin and additives. Masterbatch is a high-efficiency colorant formed by uniformly dispersing high-concentration pigments in specific resins by a special method, so it is also called pigment concentrate. Color masterbatch has been in China for more than 40 years. The variety has grown from scratch, and the output and quality have been greatly improved compared with the beginning of development. In the fields of plastic products such as films, plastic products, chemical fibers, cables, and building materials Color masterbatches are also widely used for coloring, but due to the gaps between the relevant r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08K13/02C08K3/30C08K3/22C08K3/36B29B9/06B29B9/16B29C47/92B29C48/92
CPCB29C48/92B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 冯敏辉
Owner 广州保亮得塑料科技有限公司
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