Thermoplastic elastomer (TPE) and modified PP (Polypropylene) co-extruded refrigerator magnetic door seal strip and manufacturing method thereof

A technology of thermoplastic elastomers and door seals, which is applied in household refrigeration equipment, lighting and heating equipment, applications, etc., to achieve the effects of excellent hand feeling elasticity, cost reduction, and improved welding performance

Inactive Publication Date: 2012-11-14
GUANGDONG SHUNDE ANHE MAGNETIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most important point of this invention is to successfully solve the 90-degree welding problem of TPE and PP after extruding the magnetic door seal. service life

Method used

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  • Thermoplastic elastomer (TPE) and modified PP (Polypropylene) co-extruded refrigerator magnetic door seal strip and manufacturing method thereof
  • Thermoplastic elastomer (TPE) and modified PP (Polypropylene) co-extruded refrigerator magnetic door seal strip and manufacturing method thereof
  • Thermoplastic elastomer (TPE) and modified PP (Polypropylene) co-extruded refrigerator magnetic door seal strip and manufacturing method thereof

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] Such as Figure 1 to Figure 3As shown, a magnetic refrigerator door seal co-extruded with thermoplastic elastomer TPE and modified PP is characterized in that it includes a fixed substrate part 1 composed of thermoplastic elastomer TPE and a sealing part 2 composed of modified hard PP The fixed substrate part 1 and the sealing part 2 form a magnetic door seal through co-extrusion heat fusion. The fixed substrate part 1 is composed of a substrate 101 and an assembly pin 102. The sealing part 2 is provided with an air bag 201 and a magnetic strip bag 202. The magnetic A magnetic strip 3 is set on the strip capsule 202;

[0052] The raw materials of the fixed substrate part 1 made of thermoplastic elastomer TPE are respectively composed of the following weight ratios:

[0053] SEBS 15-25 copies;

[0054] POE 15-20 copies;

[0055] P P 15-18 copi...

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Abstract

The invention relates to a thermoplastic elastomer (TPE) and modified PP (Polypropylene) co-extruded refrigerator magnetic door seal strip and a manufacturing method thereof. The TPE and modified PP co-extruded refrigerator magnetic door seal strip consists of a fixed substrate part constituted by TPE and a sealing part constituted by modified hard PP, wherein the fixed substrate part and the sealing part form the magnetic door seal strip through co-extrusion thermal fusion; the fixed substrate part consists of a substrate and an assembly plug pin; the sealing part is provided with an air bag and a magnetic strip bag; and the magnetic strip bag is provided with a magnetic strip. The TPE and modified PP co-extruded refrigerator magnetic door seal strip is a soft and hard co-extruded magnetic door seal strip consisting of the TPE material serving as a sealing strip part and a substrate hard PP material capable of fixing the door seal strip, and can be suitable for magnetic door seal strips for all refrigerators; the sealing part of the door seal strip is made of the TPE material; and thus, the requirement of environmental protection is met, and the low-temperature performance, the resilience performance and the mechanical performance are extremely superior.

Description

technical field [0001] The invention and the invention relate to the field of magnetic door seals for refrigerators, in particular to a magnetic refrigerator door seal in which thermoplastic elastomer TPE and hard modified PP are co-extruded. Background technique [0002] At present, most of the refrigerator magnetic door seals used in the refrigerator industry are made of soft PVC, and soft PVC is a material containing vinyl chloride and halogen, which has obvious defects in environmental protection and safety. The manufacturing process of soft PVC must contain plasticizers, which are easy to migrate to the paint and plastic parts of the refrigerator, and its mechanical strength is low, so the soft PVC magnetic door seals are tested for 100,000 times. Below, its low temperature resistance is poor, and the door seal is easy to harden at low temperature in winter, which affects the sealing performance, resulting in increased energy consumption, and it is easy to become brittl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/08C08L53/02C08L23/08C08L23/12C08L23/06C08K13/02C08K3/34C08K3/26B29B7/28B29B9/06B29C47/92B29C47/00B29C48/625B29C48/04B29C48/11B29C48/21B29C48/385B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/11B29C48/0022B29C48/21B29C48/385B29C48/625B29C2948/92895F25D23/087B29C48/40
Inventor 欧阳星安
Owner GUANGDONG SHUNDE ANHE MAGNETIC PROD
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