Preparation method for polypropylene coloring masterbatches

A technology for coloring masterbatch and polypropylene, applied in the field of plastic additives, can solve the problems of poor high temperature resistance and poor processing performance, and achieve the effects of good processing performance, improved service life and high temperature resistance.

Inactive Publication Date: 2015-10-07
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems in the prior art that the processing performance of the high-temperature-resistant masterbatch is not good enough and the high-temperature-resistant effect is not good when it is used, and proposes a polypropylene coloring masterbatch and its preparation method, which are mainly used as polypropylene hot water Processing aids for pipes to improve the processing performance of products and the performance of high temperature resistance and weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of polypropylene colored masterbatch is as follows:

[0025] A. Mixing

[0026] Add 25 parts by weight of random copolymerized polypropylene and 10 parts of dispersant into the high-speed mixer. After premixing for 3 minutes, add 10 parts by weight of nano-montmorillonite, 3 parts of pigment, 2 parts of antibacterial agent, 2 parts of light stabilizer, 0.1 part of cerium oxide and 2 parts of strengthening modifier, continue to mix for 20 minutes and then discharge; the strengthening modifier is nano-silicon;

[0027] B. to extrude

[0028] Transfer the mixed material in step A to a twin-screw extruder. The temperature of each temperature zone of the extruder is: 80°C, 105°C, 125°C, 140°C, 133°C, and the temperature of the die head of the extruder is 135°C;

[0029] C. Granulation and packaging

[0030] After the extruded filaments are cooled in a cooling water pool, they are granulated by a granulator, and the length of the granulated par...

Embodiment 2

[0032] A preparation method for polypropylene color masterbatch, comprising the following steps:

[0033] A. Mixing

[0034] Add 40 parts by weight of random copolymerized polypropylene and 20 parts of dispersant into the high-speed mixer, and after premixing for 6 minutes, add 18 parts by weight of nano-montmorillonite, 8 parts of pigment, 5 parts of antimicrobial agent, 5 parts of light stabilizer, 0.8 part of cerium oxide and 8 parts of reinforcement modifier, continue to mix for 35 minutes and then discharge; the reinforcement modifier is nano-silicon;

[0035] B. to extrude

[0036] Transfer the mixed material in step A to a twin-screw extruder. The temperature of each temperature zone of the extruder is: 90°C, 110°C, 135°C, 130°C, 125°C, and the die head temperature of the extruder is 125°C;

[0037] C. Granulation and packaging

[0038] After the extruded filaments are cooled in a cooling water pool, they are granulated by a granulator, and the length of the granulat...

Embodiment 3

[0040] A preparation method for polypropylene color masterbatch, comprising the following steps:

[0041] A. Mixing

[0042] Add 30 parts by weight of random copolymerized polypropylene and 15 parts of dispersant into the high-speed mixer, and after premixing for 4 minutes, add 12 parts by weight of nano-montmorillonite, 5 parts of pigment, 3 parts of antibacterial agent, 3 parts of light stabilizer, 0.5 part of cerium oxide and 5 parts of strengthening modifier, continue to mix for 30 minutes and then discharge; the strengthening modifier is nano-silicon;

[0043] B. to extrude

[0044] Transfer the mixed material in step A to a twin-screw extruder. The temperature of each temperature zone of the extruder is: 85°C, 108°C, 130°C, 135°C, 128°C, and the die head temperature of the extruder is 130°C;

[0045] C. Granulation and packaging

[0046] After the extruded filaments are cooled in a cooling water pool, they are granulated by a granulator, and the length of the granulat...

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Abstract

The invention discloses a preparation method for polypropylene coloring masterbatches, and belongs to the technical field of plastic additives. The method comprises the following steps of A, mixing: adding 25 to 40 parts by weight of a polypropylene random copolymer and 10 to 20 parts by weight of a dispersant into a high-speed mixer, performing pre-mixing for 3 to 6min, adding 10 to 18 parts by weight of nanometer montmorillonite, 3 to 8 parts by weight of a pigment, 2 to 5 parts by weight of an antibacterial agent, 2 to 5 parts by weight of a light stabilizer, 0.1 to 0.8 part by weight of cerium oxide and 2 to 8 parts by weight of an enhanced improver, continually performing mixing for 20 to 35min, and performing discharging, wherein the enhanced improver is nanometer silicon; B, extruding; C, granulating and packaging. The prepared coloring masterbatches have the advantages of high resistance to high temperature, high processability and capability of endowing a product with long service life and wide application range.

Description

technical field [0001] The invention relates to a coloring masterbatch, in particular to a preparation method of a polypropylene coloring masterbatch, and belongs to the technical field of plastic additives. Background technique [0002] Compared with traditional cast iron pipes, galvanized steel pipes, cement pipes and other pipes, polypropylene pipes have the advantages of energy saving, environmental protection, light weight and high strength, corrosion resistance, smooth inner wall without scaling, easy construction and maintenance, and long service life. , Widely used in building water supply and drainage, urban and rural water supply and drainage, city gas, electric power and optical cable sheathing, industrial fluid transportation, agricultural irrigation and other construction, municipal, industrial and agricultural fields. [0003] The polypropylene water pipes in the prior art are generally PPR water pipes, which are divided into hot water pipes and cold water pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29B7/00C08L23/14C08L83/04C08K13/02C08K3/34C08K3/36C08K3/22C08J3/22
CPCB29B9/065B29C48/92B29C2948/9259C08J3/22C08K3/22C08K3/34C08K3/36C08K13/02C08L23/14C08L83/04
Inventor 曹先军王凤德赵奕崔晓静高川刘咏梅
Owner BLUESTAR CHENGDU NEW MATERIALS
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