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Grafted polyethylene hot melt adhesive for steel wire net framework PE (Polyethylene) tube and preparation method

A technology of grafting polyethylene and steel mesh, applied in the direction of grafting polymer adhesives, adhesives, adhesive types, etc., can solve the problem of persistent decline in peel strength of hot melt adhesives, inability to achieve high shear strength, Problems such as reduced product fluidity, to achieve excellent composite effects, excellent product fluidity, and strong adhesive performance

Inactive Publication Date: 2017-11-28
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the shear strength of hot melt adhesives and steel mesh commonly used in the market is often only about 10MPa, which cannot achieve the use environment with high shear strength requirements.
[0004] Although a grafted hot-melt adhesive product has appeared on the market, which can increase the shear strength of the hot-melt adhesive and the steel mesh, but because of the pursuit of high grafting rate, the degree of cross-linking of the product increases and the fluidity of the product decreases. , the gel content increases, the persistence of the peel strength of the hot melt adhesive decreases

Method used

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  • Grafted polyethylene hot melt adhesive for steel wire net framework PE (Polyethylene) tube and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The grafted polyethylene hot-melt adhesive used for the steel mesh skeleton PE pipe, in parts by mass, its components include:

[0028] 100 parts of compound carrier (50 parts of HDPE; 10 parts of POE; 10 parts of LDPE: 30 parts of LLDPE);

[0029] 0.3 parts of composite initiator (0.1 part of dicumyl peroxide; 0.2 part of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane);

[0030] 3 parts of maleic anhydride;

[0031] Prepare according to the above preparation method, and apply the prepared product to the steel mesh skeleton PE pipe, and test the related properties, see Table 1.

Embodiment 2

[0033] The grafted polyethylene hot-melt adhesive used for the steel mesh skeleton PE pipe, in parts by mass, its components include:

[0034] 100 parts of compound carrier (50 parts of HDPE; 10 parts of POE; 10 parts of LDPE: 30 parts of LLDPE);

[0035] 0.23 parts of composite initiator (0.09 parts of dicumyl peroxide; 0.14 parts of 2,5-dimethyl-2,5-bis(tert-butyl peroxide) hexane);

[0036] 2.3 parts of maleic anhydride;

[0037] Prepare according to the above preparation method, and apply the prepared product to the steel mesh skeleton PE pipe, and test the related properties, see Table 1.

Embodiment 3

[0039] The grafted polyethylene hot-melt adhesive used for the steel mesh skeleton PE pipe, in parts by mass, its components include:

[0040] 100 parts of compound carrier (50 parts of HDPE; 10 parts of POE; 10 parts of LDPE: 30 parts of LLDPE);

[0041] 0.16 parts of composite initiator (0.06 parts of dicumyl peroxide; 0.1 part of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane);

[0042] 1.6 parts of maleic anhydride;

[0043] Prepare according to the above preparation method, and apply the prepared product to the steel mesh skeleton PE pipe, and test the related properties, see Table 1.

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Abstract

The invention provides a grafted polyethylene hot-melt adhesive specially used for steel mesh skeleton polyethylene composite pipes, which is characterized in that, in parts by mass, its components include: 100 parts of compound carrier, composed of HDPE:POE : LDPE: LLDPE is compounded according to the ratio of parts by mass of 5:1:1:3; the compound initiator is 0.1-0.3 parts, which is composed of dicumyl peroxide (DCP) and 2,5-dimethyl-2, 5-bis(tert-butylperoxy)hexane (BPDH) is compounded according to the ratio of 1:1 to 1:3 in parts by mass; 1 to 3 parts of maleic anhydride, the mass parts of composite initiator and maleic anhydride The ratio is 1:10. At the same time, the preparation method of the grafted polyethylene hot-melt adhesive used for the PE pipe with steel mesh skeleton is also disclosed. The hot melt adhesive has high bonding strength with the steel wire mesh, and the product has excellent fluidity, and the shear strength with the steel wire is ≥16Mpa.

Description

Technical field [0001] The invention relates to the field of hot melt adhesives, in particular to the field of grafted polyethylene hot melt adhesives for steel mesh skeleton PE pipes and preparation methods. technical background [0002] The steel mesh skeleton poly PE composite pipe is a mesh skeleton formed by a high-strength steel wire spirally formed left and right, and a high-density polyethylene (HDPE) as the matrix. The steel mesh skeleton is connected to the inner and outer layers with high density with hot melt adhesive. The polyethylene is tightly joined together. [0003] However, the shear strength of commonly used hot melt adhesives and steel wire meshes on the market is often only about 10 MPa, which cannot achieve the use environment with high shear strength requirements. [0004] Although there is a grafted hot-melt adhesive product on the market that can improve the shear strength of hot-melt adhesive and steel mesh, the pursuit of high grafting rate leads to incre...

Claims

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Application Information

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IPC IPC(8): C09J151/06C08F255/02C08F222/06
CPCC09J151/06C08F255/02C08F222/06
Inventor 蒋士鹏姜其焱郭永新
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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