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High-shading-degree white PPR pipe and preparation method thereof

A technology for luminosity and pipes, which is applied in the field of high-shading white PPR pipes and its preparation, to achieve the effects of improving temperature and pressure resistance, reducing light transmittance, and improving light shielding

Inactive Publication Date: 2015-12-09
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical difficulties existing in the prior art, the purpose of the present invention is to provide a white PPR pipe with high shading degree and its preparation method, and solve the light transmission problem of the white polyolefin pipe by optimizing the formula in the pipe

Method used

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  • High-shading-degree white PPR pipe and preparation method thereof
  • High-shading-degree white PPR pipe and preparation method thereof
  • High-shading-degree white PPR pipe and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] Example 1: Preparation of high shading white PPR pipe

[0030] Step 1) Preparation of pipe additive masterbatch: 10 kg of PPR pipe material, 200 g of antioxidant 1010, 400 g of antioxidant 1130, 400 g of phosphite antioxidant 168, 150 g of hydroxybenzotriazole Put UV-like absorber 234, 150 grams of hindered amine light stabilizer 770 and 5 grams of light cut-off agent 7276A that blocks 350-800nm ​​wavelength into a mixer with a speed of 50-100 rpm, and then measure 10-15ml of white oil , after stirring for 10 minutes, feed to the twin-screw extruder granulator to obtain the pipe additive masterbatch.

[0031] Step 2) Preparation of high-shading white masterbatch: Pour 100kg of PPR powder, 3000g of PE wax, 500g of Kao diffusion powder EBS, and 30kg of shading agent rutile titanium dioxide into a 150L high-speed mixer , 90 grams of aluminum silver powder, and then measure 100ml of diffusion oil, first mix at low speed for 2 minutes, the mixing temperature is 30~40°C, to ...

Embodiment 2

[0033] Example 2: Preparation of high shading white PPR pipe

[0034] Step 1) Preparation of pipe additive masterbatch: 10 kg of PPR pipe material, 200 g of antioxidant 1010, 400 g of antioxidant 1130, 400 g of phosphite antioxidant 168, 100 g of hydroxybenzotriazole Put UV-like absorber 234, 100 grams of hindered amine light stabilizer 770 and 4.8 grams of light cut-off agent 7276F that blocks 350-850nm wavelength into a mixer with a speed of 50-100 rpm, and then measure 10-15ml of white oil , after stirring for 10 minutes, feed to the twin-screw extruder granulator to obtain the pipe additive masterbatch.

[0035] Step 2) Preparation of high-shading white masterbatch: Pour 100kg of PPR powder, 3000g of PE wax, 500g of Kao diffusion powder EBS, and 24kg of shading agent rutile titanium dioxide into a 150L high-speed mixer 1. 95 grams of aluminum silver powder, then measure 100ml of diffusion oil, first mix at low speed for 2 minutes, the mixing temperature is 30~40°C, to pro...

Embodiment 3

[0038] Step 1) Preparation of pipe additive masterbatch: 10 kg of PPR pipe material, 200 g of antioxidant 1010, 400 g of antioxidant 1130, 400 g of phosphite antioxidant 168, 120 g of hydroxybenzotriazole Put UV-like absorber 234, 120 grams of hindered amine light stabilizer 770 and 4.2 grams of light cut-off agent 7276E that blocks 350-950nm wavelength into a mixer with a speed of 50-100 rpm, and then measure 10-15ml of white oil , after stirring for 10 minutes, feed to the twin-screw extruder granulator to obtain the pipe additive masterbatch.

[0039] Step 2) Preparation of high-shading white masterbatch: Pour 100kg of PPR powder, 3000g of PE wax, 500g of Kao diffusion powder EBS, and 35kg of opacifying agent rutile titanium dioxide into a 150L high-speed mixer , 80 grams of aluminum silver powder, and then measure 100ml of diffusion oil, first mix at low speed for 2 minutes, the mixing temperature is 30~40°C, to promote the pre-dispersion of the mixture, so that various ra...

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Abstract

The invention relates to a high-shading-degree white PPR pipe and a preparation method thereof. The pipe is prepared from, by weight, 100 parts of PPR, 2-5 parts of high-shading-degree white master batches, 0.8-1.8 parts of compound additives and 0.01-0.02 part of key light cut-off agents. The high-shading-degree white PPR pipe is obtained through pipe extrusion forming by a granulation and single screw pipe extruding machine. By the adoption of the technology, the produced high-shading-degree white PPR pipe product meets all index requirements in GB / T18742, the temperature resistance and pressure resistance of the pipe are improved, the light transmittance of the pipe is greatly lowered to be smaller than 0.01% from 3.5%, the white PPR pipe can be also used for outdoor environment, the situation that in the process of using a pipe outdoors, because sunlight transmits through the pipe, breeding and reproducing of green algae are generated is effectively avoided, and the safety of drinking water is further guaranteed.

Description

technical field [0001] The invention belongs to the technical field of plastic pipes for construction, and in particular relates to a high-shading white PPR pipe and a preparation method thereof. technical background [0002] PPR pipe has the advantages of light weight, convenient connection, high strength, heat resistance, long life and sanitation, and no pollution. It has been popularized in the domestic water supply pipe market and is currently the most used building cold and hot water pipe. At present, the common PPR pipes on the market are white, gray, green and yellow in four colors. [0003] According to the installation method, PPR pipe can be divided into surface installation and concealed installation. Standards such as ISO and EN have requirements for plastic pipes and fittings with a light transmittance of ≤0.2%. The light transmittance of PPR pipes is generally improved by adding color masterbatch for shading. The darker pipes have high shading, and the white ...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/06C08L91/00C08K13/02C08K3/08C08J3/22
CPCC08L23/14C08J3/226C08J2323/14C08J2423/14C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L2207/14C08L23/06C08L91/00C08K13/02C08K2003/0812C08K2003/0806
Inventor 黄咸伟高莉张伟娇
Owner ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD
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