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A pe hot-melt butt joint pipe fitting

A technology of hot-melt butt joint and pipe fittings, which is applied in the field of polyethylene piping systems, can solve the problems of reducing the processing fluidity of the compound and the difficulty of processing and molding, and achieve the goal of improving the processing fluidity, reducing the defective rate of products, and improving the processing flow performance Effect

Active Publication Date: 2016-05-11
GANSU DAYU WATER SAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although extrusion grade PE100 and injection molding grade PE100 are compounded, the product strength will increase, but this is at the cost of reducing the processing fluidity of the compound during the production process, and the addition of extrusion grade PE100 will contribute to the processing and molding of subsequent products brings difficulties

Method used

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  • A pe hot-melt butt joint pipe fitting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 A PE hot-melt butt joint pipe fitting, which is made of 40phr extrusion grade PE100, 40phr injection molding grade PE100, 0.6phr silicone masterbatch and 2phr polyethylene black masterbatch.

[0020] The preparation method of the PE hot-melt butt joint pipe fitting comprises the following steps:

[0021] (1) Weighing according to the proportion;

[0022] ⑵After mixing the raw materials evenly, send them into the single-screw extrusion granulator, the temperature of the first section is 165~175℃, the temperature of the second section is 180~190℃, the temperature of the third section is 190~200℃, In the fourth stage, the temperature is 205~210°C and the temperature of the machine head is 200~210°C for granulation to obtain granular raw materials;

[0023] (3) Set the temperature of the injection molding machine so that the temperature of the first stage is 185~220°C, the temperature of the second stage is 190~230°C, the temperature of the third stage is 175~20...

Embodiment 2

[0024] Example 2 A PE hot-melt butt joint pipe fitting, which is made of 60phr extrusion grade PE100, 60phr injection molding grade PE100, 0.9phr silicone masterbatch and 4phr polyethylene black masterbatch.

[0025] The preparation method of the PE hot-melt butt joint pipe fitting is the same as Example 1 .

Embodiment 3

[0026] Example 3 A PE hot-melt butt joint pipe fitting, which is made of 50phr extrusion grade PE100, 50phr injection molding grade PE100, 0.8phr silicone masterbatch and 3phr polyethylene black masterbatch.

[0027] The preparation method of the PE hot-melt butt joint pipe fitting is the same as Example 1 .

[0028] the above Example 1~3 Among them, the silicone masterbatch is made of polysiloxane with a molecular weight of 1.5 million and an injection molding grade PE100 resin carrier mixed uniformly by equal mass.

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Abstract

The invention relates to a PE hot-melt butt joint pipe fitting, which consists of 40-60phr extrusion grade PE100, 40-60phr injection molding grade PE100, 0.6-0.9phr silicone masterbatch and 2-4? phr's polyethylene black masterbatch. The invention has the advantages of simple formula, low cost, excellent product performance and easy realization of industrialized production.

Description

technical field [0001] The invention relates to the technical field of polyethylene piping systems, in particular to a PE hot-melt butt joint pipe fitting. Background technique [0002] Polyethylene is a thermoplastic that can be processed many times. As an engineering material, compared with steel pipes, cast iron pipes, and UPVC pipes, it has good flexibility, strong corrosion resistance, light weight, and excellent impact resistance. Long service life, pipes and pipe fittings can be connected by hot-melt butt joint and electric fusion to make pipes and pipe fittings have good welding performance, and can be laid in corrosive soil, earthquake areas, mountains and swamps and other areas; it can also be used as a socket The pipe is inserted into the old pipeline to repair and update the old pipeline system, which is safe and reliable, and the construction cost is low, so it develops extremely rapidly in engineering applications. [0003] Polyethylene pipe fittings are the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L83/04C08J3/22B29B9/06B29C47/92B29C45/78B29C48/92
CPCB29C48/92B29C48/875B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 张国祥宁伟殷益明
Owner GANSU DAYU WATER SAVING