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Coloring master batch for RRP (polypropylene random) hot-water pipes and preparation method thereof

A technology of coloring masterbatch and hot water pipe, which is applied in the field of plastic coloring masterbatch, which can solve the problems of poor weather resistance, temperature resistance and dispersion, and achieve the effects of good temperature resistance, strong sterilization ability and extended service life

Inactive Publication Date: 2014-09-24
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of poor weather resistance, temperature resistance, and poor dispersibility of the color masterbatch for PPR pipes in the prior art, and provides a color masterbatch for PPR hot water pipes, which has good processing performance and weather resistance, and can meet the requirements of PPR. Hot water pipe manufacturer's requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of masterbatch of coloring for PPR hot water pipe, is made up of the following raw materials by weight: 40 parts of carrier resin, 35 parts of pigment, 0.5 part of dispersant, 0.1 part of antioxidant, 0.1 part of antibacterial agent, described pigment is white, A mixture of black and yellow pigments in a ratio of 5:2:1.

[0024] The preparation method of described a kind of PPR hot water pipe coloring masterbatch comprises the following steps:

[0025] A. Add the raw materials weighed according to the formula: resin, pigment, dispersant, antioxidant, and antibacterial agent into the high-speed mixer in turn for full mixing. The speed of the mixer is 300-800 r / min and the mixing time is 20 minutes;

[0026] B. Transfer the mixed material to the twin-screw extruder for melt extrusion. The temperature of each temperature zone of the twin-screw extruder is: head 200±3°C, first zone 148±3°C, second zone 155±3°C , the third zone is 165±3°C, the fourth zone is 180±3°C,...

Embodiment 2

[0029] A coloring masterbatch for PPR hot water pipes, consisting of the following raw materials in parts by weight: 60 parts of carrier resin, 55 parts of pigment, 5 parts of dispersant, 3 parts of antioxidant, 3 parts of antibacterial, the pigments are white, black and yellow pigment in a ratio of 5:2:1.

[0030] The resin is random copolymerized polypropylene with a melt index of 13-18 g / min.

[0031] The white pigment is rutile titanium dioxide, the black pigment is carbon black, and the yellow pigment is permanent yellow.

[0032] The preparation method of described a kind of PPR hot water pipe coloring masterbatch comprises the following steps:

[0033] A. Add the raw materials weighed according to the formula: resin, pigment, dispersant, antioxidant, and antibacterial agent into the high-speed mixer in turn for full mixing. The speed of the mixer is 400-700 r / min, and the mixing time is 25 minutes;

[0034] B. Transfer the mixed material to the twin-screw extruder for...

Embodiment 3

[0037] A kind of masterbatch of coloring for PPR hot water pipes, comprising the following raw materials in parts by weight: 50 parts of carrier resin, 28.75 parts of rutile titanium dioxide, 11.5 parts of carbon black, 5.75 parts of permanent yellow, 2 parts of polyethylene glycol 200, antioxidant 0.67 parts of 1076, 0.33 parts of antioxidant DLTDP, and 1 part of silver ion antibacterial agent.

[0038] The resin is random copolymerized polypropylene with a melt index of 17 g / min.

[0039] The added amount of the coloring masterbatch for PPR hot water pipes in application is 3% of pure resin.

[0040] The preparation method of described a kind of PPR hot water pipe coloring masterbatch comprises the following steps:

[0041] A. Add the raw materials weighed according to the formula: resin, pigment, dispersant, antioxidant, and antibacterial agent into the high-speed mixer in turn for full mixing. The speed of the mixer is 400-600 r / min, and the mixing time is 23 minutes;

...

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Abstract

The invention relates to the technical field of plastic coloring master batches, particularly a coloring master batch for RRP (polypropylene random) hot-water pipes and a preparation method thereof. The invention discloses a coloring master batch for RRP hot-water pipes, which is prepared from the following raw materials in parts by weight: 40-60 parts of carrier resin, 35-55 parts of pigment, 0.5-5 parts of dispersing agent, 0.1-3 parts of antioxidant and 0.1-3 parts of antimicrobial agent. The pigment is a mixture of white, black and yellow pigments in a ratio of 5:2:1. The preparation method comprises the following steps: mixing, extruding, cooling, drying and granulating. The prepared master batch has the advantages of favorable workability, favorable weather resistance and favorable dispersity.

Description

technical field [0001] The invention relates to the technical field of plastic coloring masterbatch, in particular to a coloring masterbatch for PPR hot water pipes and a preparation method thereof. Background technique [0002] Color masterbatch is a concentrated body made by loading plastic additives in a resin with a super constant amount. When manufacturing plastic products, it is not necessary to add this kind of plastic additive, but only need to add the corresponding masterbatch. Therefore, it is one of the most important forms of application of plastic additives in the world today. Its advantages are: simple process, convenient use, easy to realize production automation, improve labor productivity, avoid environmental pollution, and be conducive to clean and civilized production of workers' health. Its basic composition is: carrier resin, pigment, dispersant, through mixing, melt extrusion, granulation, to form a granular masterbatch with the size of resin particle...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08K13/02C08K3/22C08K3/04C08K5/134C08K5/372C08K3/08B29C47/92B29C48/92
CPCB29B7/728B29B7/7461B29B9/12B29B7/46B29C47/889B29B9/06B29C47/92B29B7/72B29C48/92B29C2948/9258B29C2948/92704C08K3/015C08K3/04C08K3/22C08K5/0058C08K13/02C08K2003/2241C08L2203/18C08L2207/14C08L2310/00C08L23/14B29C48/40B29C2948/9259B29C2948/92895
Inventor 曹先军王凤德梁克俭
Owner BLUESTAR CHENGDU NEW MATERIALS
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