Environment friendly thermoplastic elastomer used as fire-retardant sealing strip and preparation method thereof

A thermoplastic elastomer and environment-friendly technology, which is applied to the preparation of the sealing strip, the environment-friendly thermoplastic elastomer and its use in the preparation of passenger car sealing strips, can solve the problems of waste of resources, environmental pollution, easy aging and cracking, etc. Improve production efficiency, good flexibility and high plasticity

Inactive Publication Date: 2011-10-12
GUANGDONG KINGREAT HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging resistance of natural rubber is not good, it is easy to age and crack, and the service life of the passenger car sealing strip is short
In addition, the molding of natural rubber needs to be vulcanized, which is a time-consuming and energy-consuming process
Although the processing of PVC is better, it is still not ideal because the elasticity of PVC is not good; these two materials do not belong to the concept of environmental protection when preparing passenger car sealing strips, resulting in a certain waste of resources, polluting the environment, and are flexible at low temperatures. bad sex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment one, 1, raw material preparation: each composition by following weight ratio:

[0040] SEBS 100 copies

[0041] 120 parts white mineral oil

[0042] Polypropylene PP 40 parts

[0043] EVA 50 parts

[0044] Calcium carbonate 50 parts

[0045] Decabromodiphenylethane 75 parts

[0046] Antimony trioxide 30 parts

[0047] Calcium stearate 0.3 parts

[0048] Anti-ultraviolet agent 0.3 parts

[0049] Antioxidant 0.2 part.

[0050] 2. Preparation equipment: twin-screw extrusion granulator, extruder, and prefabricated molds for manufacturing passenger car sealing strips.

[0051] 3. Preparation steps:

[0052] b. Pour SEBS into the mixer first;

[0053] c. Put the white mineral oil into the blender and stir for 3 minutes;

[0054] d. Put other raw materials into the mixer together, and stir for another 3 minutes to fully mix;

[0055] e. Put the mixed material into a twin-screw granulator to extrude and granulate at 200°C;

[0056] f. Put the finished pe...

Embodiment 2

[0070] 1. Raw material preparation: each ingredient according to the following weight ratio:

[0071] SEBS 100 copies

[0072] 180 parts white mineral oil

[0073] Polypropylene PP 80 parts

[0074] EVA 80 parts

[0075] Calcium carbonate 100 parts

[0076] Decabromodiphenyl ether 100 parts

[0077] Antimony trioxide 50 parts

[0078] 3 parts calcium stearate

[0079] Anti-ultraviolet agent 0.3 parts

[0080] Antioxidant 1 part.

[0081] 2. Preparation equipment: twin-screw extrusion granulator, extruder, and prefabricated molds for manufacturing passenger car sealing strips.

[0082] 3. Preparation steps:

[0083] b. Pour SEBS into the mixer first;

[0084] c. Put the white mineral oil into the blender and stir for 3 minutes;

[0085] d. Put other raw materials together and stir for another 3 minutes to fully mix;

[0086] e. Put the mixed material into a twin-screw granulator to extrude and granulate at 200°C;

[0087] f. Put the finished pellets into a single-s...

Embodiment 3

[0101] 1. Raw material preparation: each ingredient according to the following weight ratio:

[0102] SEBS 100 copies

[0103] 50 parts white mineral oil

[0104] Polypropylene PP 40 parts

[0105] EVA 50 parts

[0106] Calcium carbonate 50 parts

[0107] Decabromodiphenyl ether 50 parts

[0108] Antimony trioxide 20 parts

[0109] Calcium stearate 0.1 parts

[0110] Anti-ultraviolet agent 0.1 parts

[0111] Antioxidant 0.2 part.

[0112] 2. Preparation equipment: twin-screw extrusion granulator, extruder, and prefabricated molds for manufacturing passenger car sealing strips.

[0113] 3. Preparation steps:

[0114] b. Pour SEBS into the mixer first;

[0115] c. Put the white mineral oil into the blender and stir for 3 minutes;

[0116] d. Put other raw materials together and stir for another 3 minutes to fully mix;

[0117] e. Put the mixed material into a twin-screw granulator to extrude and granulate at 200°C;

[0118] f. Put the finished pellets into a single-...

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PUM

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Abstract

The invention provides a fire-retardant thermoplastic elastomer (TPE) capable of being used as a sealing strip of a bus and a preparation method thereof. The TPE contains the following components in parts by weight: 100 parts of segmented styrene copolymer, 50-180 parts of mineral oil, 40-80 parts of polypropylene PP, 50-80 parts of EVA, 50-100 parts of calcium carbonate, 50-100 parts of decabromodiphenyl oxide, 20-50 parts of antimony trioxide, 0.1-3 parts of calcium stearate and 0.2-1 part of antioxidant. The TPE provided by the invention has good flexibility, fire retardancy and high manufacturing efficiency, is an ideal material for manufacturing the sealing strip of the bus, and can be mechanically operated. The leftover material can be recycled, which is significant to save resources.

Description

technical field [0001] The invention relates to a sealing strip, in particular to an environment-friendly thermoplastic elastomer (TPE) and its use in preparing a passenger car sealing strip, and also relates to a preparation method of the sealing strip. Background technique [0002] At present, the passenger car sealing strips used in various fields are usually made of the following two materials, one is natural rubber material, and the other is polyvinyl chloride PVC material. The anti-aging performance of natural rubber is not good, it is easy to age and crack, and the service life of the passenger car sealing strip is short. In addition, the molding of natural rubber requires vulcanization, which is a time-consuming and energy-consuming process. Although the processing of PVC is better, it is still not ideal because the elasticity of PVC is not good; these two materials do not belong to the concept of environmental protection when preparing passenger car sealing strips,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L23/12C08L23/08C08K13/02C08K5/01C08K3/26C08K5/06C08K3/22
Inventor 翁德喜
Owner GUANGDONG KINGREAT HITECH
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