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A kind of high-density polyethylene toughening masterbatch and its preparation method and its application in high-density polyethylene pipe

A high-density polyethylene and toughening masterbatch technology, applied in high-density polyethylene pipes, high-density polyethylene toughening masterbatch and its preparation field, can solve the low impact toughness and ring stiffness of HDPE municipal pipes , easy to be brittle, easy to deform and other problems, to achieve the effect of improving impact toughness and ring stiffness, improving compatibility, improving impact toughness and ring stiffness

Active Publication Date: 2018-07-17
LIANSU TECH DEV GUIYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High-density polyethylene is an opaque white wax-like material. The specific gravity of high-density polyethylene is lighter than water, and it has the advantages of acid and alkali resistance, organic solvent resistance, surface hardness, tensile strength and rigidity, and is widely used. , but at the same time high-density polyethylene also has the characteristics of easy deformation, easy aging, and easy brittleness
[0003] When producing HDPE municipal pipes, enterprises usually add heavy calcium or light calcium in different contents in order to reduce costs, which leads to problems such as low impact toughness and ring stiffness of HDPE municipal pipes, which limits their industrial application

Method used

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  • A kind of high-density polyethylene toughening masterbatch and its preparation method and its application in high-density polyethylene pipe
  • A kind of high-density polyethylene toughening masterbatch and its preparation method and its application in high-density polyethylene pipe
  • A kind of high-density polyethylene toughening masterbatch and its preparation method and its application in high-density polyethylene pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 A kind of high-density polyethylene toughened masterbatch 1

[0042] Step 1: Selection of raw materials: 80 parts by weight of HDPE resin, 18.9 parts of ultrafine phosphogypsum powder (1200 mesh); 1 part of compatibilizer (PP-g-MAH), dispersant carboxyl-terminated liquid nitrile rubber 0.1 Copies.

[0043] Step 2: Reactive extrusion: The extrusion process is: 180°C in the first zone, 185°C in the second zone, 190°C in the third zone, 195°C in the fourth zone, 200°C in the fifth zone, 200°C in the head; the screw speed is 200 r / min, Configure HDPE blend containing compatibilizer (PP-g-MAH), dispersant (CTBN) and ultra-fine phosphogypsum powder and add it to the twin-screw extruder for reactive extrusion molding, cooling, and pelletizing. Sexual material A;

[0044] Step 3: Drying: The modified material A obtained in step 2 is dried in an oven at a temperature of 90° C. for 240 minutes, and the modified material B obtained is a high-density polyethylene toughened mas...

Embodiment 2

[0045] Example 2 A kind of high density polyethylene toughened masterbatch 2

[0046] Step 1: Selection of raw materials: 85 parts by weight of HDPE resin, 15.4 parts of ultrafine phosphogypsum powder (600 mesh); 1.5 parts of compatibilizer (PP-g-MAH), dispersant carboxyl-terminated liquid nitrile rubber 0.1 Copies.

[0047] Step 2: Reactive extrusion: The extrusion process is: 180°C in the first zone, 185°C in the second zone, 190°C in the third zone, 195°C in the fourth zone, 200°C in the fifth zone, 200°C in the head; the screw speed is 200 r / min, Configure the HDPE blend containing the compatibilizer (PP-g-MAH), dispersant ((CTBN) and ultrafine phosphogypsum powder into the twin-screw extruder for reactive extrusion molding, cooling, and pelletizing to obtain Modified material A;

[0048] Step 3: Drying: The modified material A obtained in step 2 is dried in an oven at a temperature of 90° C. for 240 minutes, and the modified material B obtained is a high-density polyethylene t...

Embodiment 3

[0049] Example 3 A kind of high-density polyethylene toughened masterbatch 3

[0050] Step 1: Selection of raw materials: 90 parts by weight of HDPE resin, 7.8 parts of ultrafine phosphogypsum powder (2000 mesh); 2 parts of compatibilizer (PP-g-MAH), dispersant carboxyl-terminated liquid nitrile rubber 0.1 Copies.

[0051] Step 2: Reactive extrusion: The extrusion process is: 180°C in the first zone, 185°C in the second zone, 190°C in the third zone, 195°C in the fourth zone, 200°C in the fifth zone, 200°C in the head; the screw speed is 200 r / min, Configure the HDPE blend containing the compatibilizer (PP-g-MAH), dispersant ((CTBN) and ultrafine phosphogypsum powder into the twin-screw extruder for reactive extrusion molding, cooling, and pelletizing to obtain Modified material A;

[0052] Step 3: Drying: The modified material A obtained in step 2 is dried in an oven at a temperature of 90° C. for 240 minutes, and the modified material B obtained is a high-density polyethylene tou...

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Abstract

The invention relates to high density polyethylene toughening master batch, a preparation method thereof and application thereof in a high density polyethylene pipe. The high density polyethylene toughening master batch is prepared from the following raw materials in parts by mass: 80-95 parts of high density polyethylene resin, 1-3 parts of a compatilizer, 0.1-0.5 part of a dispersing agent and 6.5-18.9 parts of superfine ardealite powder, wherein the compatilizer is polypropylene grafted maleic anhydride, the dispersing agent is carboxyl-terminated liquid butadiene rubber, and mesh number of the superfine ardealite powder is 600-3000. After the high density polyethylene toughening master batch provided by the invention is applied to the high density polyethylene pipe, impact toughness and loop stiffness of the pipe are effectively improved without reducing pressure resistance and heat resistance of the pipe.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a high-density polyethylene toughened masterbatch, a preparation method thereof, and its application in a high-density polyethylene pipe. Background technique [0002] HDPE is an opaque white wax-like material. HDPE has a lighter specific gravity than water, and has the advantages of acid and alkali resistance, organic solvent resistance, surface hardness, tensile strength and rigidity, and is widely used. , But at the same time high-density polyethylene also has the characteristics of easy deformation, easy aging and brittleness. [0003] In order to reduce costs when producing HDPE municipal pipes, enterprises usually add different contents of heavy calcium or light calcium, which leads to problems such as low impact toughness and ring stiffness of the produced HDPE municipal pipes and restricts its industrial application. Ultra-fine phosphogypsum powder is one o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L51/06C08L13/00C08K3/30C08J3/22B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08J3/226C08J2323/06C08J2423/06C08K2201/003C08L23/06C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L2205/035C08L2205/08C08L2207/062C08L51/06C08L13/00C08K2003/3045
Inventor 龚维黄永锋尹晓刚黄海付海刘运锦
Owner LIANSU TECH DEV GUIYANG
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