Hot melt adhesive for PVC profiled bar co-extrusion bonding and preparation method thereof

A profile co-extrusion and hot-melt adhesive technology, applied in the field of hot-melt adhesives, can solve the problems affecting the quality and service life of PVC profiles, narrow processing temperature range, performance limitations, etc., to achieve convenient processing, wide processing temperature range, The effect of excellent weather resistance

Inactive Publication Date: 2020-04-10
SHANGHAI BANGZHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing hot melt adhesive has shortcomings such as limited bonding performance, narrow processing temperature range, and poor weather resistance, which seriously affect the quality and service life of PVC profiles.

Method used

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  • Hot melt adhesive for PVC profiled bar co-extrusion bonding and preparation method thereof
  • Hot melt adhesive for PVC profiled bar co-extrusion bonding and preparation method thereof
  • Hot melt adhesive for PVC profiled bar co-extrusion bonding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a hot-melt adhesive for co-extrusion bonding of PVC profiles, which includes the following components by weight percentage:

[0026] Each composition content of hot melt adhesive in table 1. embodiment 1

[0027]

[0028]

[0029] The preparation method of the hot-melt adhesive used for co-extrusion bonding of PVC profiled materials specifically comprises the following steps:

[0030] (1) According to Table 1, each component is weighed and placed in a high mixer and mixed uniformly;

[0031] (2) Through twin-screw extrusion and granulation, the extrusion temperature is 150-200°C.

Embodiment 2

[0033] This embodiment provides a hot-melt adhesive for co-extrusion bonding of PVC profiles, which includes the following components by weight percentage:

[0034] Each composition content of hot melt adhesive in table 2. embodiment 2

[0035]

[0036] The preparation method of the hot-melt adhesive used for co-extrusion bonding of PVC profiled materials specifically comprises the following steps:

[0037] (1) According to Table 2, each component is weighed and placed in a high mixer and mixed uniformly;

[0038] (2) Through twin-screw extrusion and granulation, the extrusion temperature is 150-200°C.

Embodiment 3

[0040] This embodiment provides a hot-melt adhesive for co-extrusion bonding of PVC profiles, which includes the following components by weight percentage:

[0041] Each composition content of hot melt adhesive in table 3. embodiment 3

[0042]

[0043] The preparation method of the hot-melt adhesive used for co-extrusion bonding of PVC profiled materials specifically comprises the following steps:

[0044] (1) According to Table 2, each component is weighed and placed in a high mixer and mixed uniformly;

[0045] (2) Through twin-screw extrusion and granulation, the extrusion temperature is 150-200°C.

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Abstract

The invention discloses a hot melt adhesive for PVC profiled bar co-extrusion bonding and a preparation method thereof. The hot melt adhesive comprises following components in percentage by weight: 5to 20% of olefin copolymers, 5 to 20% of maleic anhydride grafted olefin copolymers, 10 to 30% of ethylene copolymers, 10 to 40% of maleic anhydride grafted ethylene copolymers, 5 to 20% of a styrenethermoplastic elastomer, 5 to 20% of a tackifying agent, 1 to 5% of a viscosity adjusting agent, and 0.1 to 1% of a functional auxiliary agent. Compared with a conventional technology, the provided hot melt adhesive can effectively bond PVC resin and a metal basic material in a three layer co-extrusion mode. The processing is convenient. The compounding strength of the products can be effectivelyimproved. The service life is prolonged. Moreover, the hot melt adhesive has the characteristics of high bonding strength, wide processing temperature range, environmental friendliness, no pollution,and excellent weatherability.

Description

technical field [0001] The invention relates to a hot-melt adhesive, in particular to a hot-melt adhesive for co-extrusion bonding of PVC profiles and a preparation method thereof Background technique [0002] Hot melt adhesives mainly use olefin copolymers, maleic anhydride grafted olefin copolymers, ethylene copolymers, maleic anhydride grafted ethylene copolymers, tackifiers, viscosity regulators, styrene thermoplastic elastomers and It is prepared by blending and modifying certain functional additives. The product can be directly used for co-extrusion bonding of PVC and metal substrates such as steel and aluminum. Traditional metal-based PVC profiles mainly use PVC and metal substrates directly. In the form of co-extrusion, it is prone to delamination and cracking. [0003] At present, the compounding of plastics and metals is mainly through direct bonding of epoxy glue, polyurethane glue and other liquid glues, and liquid glues contain volatile substances, which are ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/06C09J123/08C09J153/02C09J109/06
CPCC08L2205/025C08L2205/035C08L2207/04C09J151/06C08L23/0853C08L23/0869C08L51/06C08L23/0815C08L53/025C08L53/02C08L9/06
Inventor 孙晓光毕宏海储江顺毕宏江杨少辉李楠肖传富欧阳贵汪丽
Owner SHANGHAI BANGZHONG NEW MATERIAL
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