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Plastic coloring master batch and preparation method thereof

A coloring masterbatch and plastic technology, which is applied in the field of plastic coloring masterbatches, can solve the problems of insufficient fineness improvement, affecting the color uniformity of polyethylene pipes for water supply, pressure resistance, water quality and environmental protection, and a large amount of calcium carbonate used as an inorganic filler. Achieve the effect of high pressure resistance, low price and stable performance

Pending Publication Date: 2021-04-16
湖南鑫天源新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main component of black masterbatch for domestic water supply polyethylene pipes is carbon black + polyethylene + inorganic filler calcium carbonate. Color uniformity, pressure resistance, environmental protection of water quality, etc.
[0004] Existing resource tendencies are not enough for fine improvement of extensive engineering input like municipal engineering

Method used

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  • Plastic coloring master batch and preparation method thereof
  • Plastic coloring master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) 30 parts of low-density polyethylene; 22 parts of high-density polyethylene resin; 40 parts of black talc; 10 parts of plasticizer; 4 parts of antibacterial agent for water treatment; 0.5 part of antioxidant; 0.5 part of dispersant; Add 5 parts of the agent into the grinder, grind, disperse and mix for 1 hour and discharge to obtain the mixture;

[0024] 2) Add the mixture mixture in step 1) to a kneader with a rotating speed of 500r / min and knead for 30 minutes, and knead to a coated state to obtain a semi-finished product;

[0025] 3) The semi-finished product in step 2) is mixed and extruded to granulate with a twin-screw extruder. The temperature of the extruder is set at 100° C. and the die head at 235° C. in sequence.

Embodiment 2

[0027] 1) 50 parts of low-density polyethylene; 30 parts of high-density polyethylene resin; 50 parts of black talc; 20 parts of plasticizer; 10 parts of antibacterial agent for water treatment; 5 parts of antioxidant; 5 parts of dispersant; Add 10 parts of the agent into the grinder, grind, disperse and mix for 2 hours and discharge to obtain the mixture;

[0028] 2) Add the mixture mixture in step 1) to a kneader with a rotating speed of 1800r / min and knead for 30 minutes, and knead until it is coated to obtain a semi-finished product;

[0029] 3) The semi-finished product in step 2) is mixed and extruded to granulate with a twin-screw extruder. The temperature of the extruder is set at 300° C. and the temperature of the die is 255° C. in turn.

Embodiment 3

[0031] 1) 40 parts of low-density polyethylene, 25 parts of high-density polyethylene resin; 50 parts of black talc; 8 parts of plasticizer 15 parts of antibacterial agent for water treatment; 3 parts of antioxidant; 3 parts of dispersant; 8 parts of antioxidant stabilizer Add it into a grinder, grind, disperse and mix for 2 hours and discharge to obtain a mixture;

[0032] 2) Add the mixture mixture in step 1) to a kneader with a rotating speed of 1000r / min and knead for 30 minutes, and knead until it is coated to obtain a semi-finished product;

[0033] 3) The semi-finished product in step 2) is mixed and extruded into pellets with a twin-screw extruder, and the temperature of the extruder is set at 200° C. and the die head at 250° C. in sequence.

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Abstract

The invention relates to the technical field of plastic coloring master batches, in particular to a plastic coloring master batch and a preparation method thereof. The preparation method of the plastic coloring master batch comprises the following steps: adding low-density polyethylene, high-density polyethylene resin, black talc, a plasticizer, an antibacterial agent for water treatment, an antioxidant, a dispersing agent, an antioxidant stabilizer, calcium oxide and paraffin into a grinding machine according to different parts by weight, and replacing carbon black with black talc which contains graphite. The performance is relatively stable, cancerogen is not contained, artificial synthesis is replaced by natural minerals, and the price is low. The carbon black is less in dosage and not easy to homogenize. The addition amount of black talc is large and is equivalent to the total amount of white talc and charcoal, and coloring is more uniform and environment-friendly than that of carbon black.

Description

technical field [0001] The invention relates to the technical field of plastic coloring masterbatches, in particular to a plastic coloring masterbatch and a preparation method thereof. Background technique [0002] Black masterbatch is a kind of color masterbatch, and color masterbatch is a colorant that must be used in plastic products. Its basic composition includes three aspects: pigment, carrier, and additive; where the pigment is dispersed through the carrier (usually thermoplastic resin) with the aid of additives In the target material, the additive can be a dispersant or other additives for specific purposes. Because the masterbatch is used as a colorant, it has many advantages, which can make the pigment have better dispersibility in the product, help to maintain the chemical stability of the pigment, ensure the stability of the color of the product, protect the health of the operator, and protect the environment. Cleanliness, ease of use, etc. [0003] The domesti...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L91/06C08K3/22C08K3/36C08K3/04C08J3/22
Inventor 尚志新邱瑜
Owner 湖南鑫天源新材料有限公司
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