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HIPS (High Impact Polystyrene) double-layer composite board for liner of refrigerating device and preparation method of HIPS double-layer composite board

A refrigeration device, HIPS-2710 technology, applied in the direction of household refrigeration devices, chemical instruments and methods, applications, etc., can solve the problems of ABS special material color difference and performance difference, long purchase cycle, low strength of high-gloss surface layer, etc., to achieve reduction cost, increase the strength of the plate, and reduce the effect of cracking risk

Inactive Publication Date: 2012-09-12
HEFEI MIDEA REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The high-gloss surface layer has low strength, brittleness, and no corrosion resistance. The resulting lining, especially the box lining, is easy to crack, and there are quality risks;
[0004] 2. In order to reduce the possibility of cracking, the thickness of the surface layer is usually less than 3%, and the mold is also affected. The gloss of the obtained box lining is actually very low, and even the gloss cannot be seen;
[0005] 3. The thickness of the extruded board surface layer is not easy to control, and the qualified rate of extruded board and blister is low;
[0008] 1. Different grades of ABS special materials provided by different suppliers have differences in color and performance;
[0009] 2. There are compatibility problems between different ABS special materials, and they cannot be mixed, which causes inconvenience to production management;
[0010] 3. At present, only a few companies can produce this kind of ABS special material, all rely on imports, the purchase cycle is long, and the price is high

Method used

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  • HIPS (High Impact Polystyrene) double-layer composite board for liner of refrigerating device and preparation method of HIPS double-layer composite board
  • HIPS (High Impact Polystyrene) double-layer composite board for liner of refrigerating device and preparation method of HIPS double-layer composite board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: HIPS two-layer composite plate for the inner tank of the refrigeration device (total thickness: 3.2mm)

[0032] The material of the surface layer is Chevron natural color HIPS-D6007.

[0033] The raw material of the bottom layer is Yangba HIPS-2710, dyed with 5% masterbatch, and 50% crushed material or recycled granulated material is used as the return material.

[0034] Mix Yamba HIPS-2710 and recycled materials evenly to obtain mixed materials;

[0035] Chevron natural color HIPS-D6007 is melted with the mixed material and co-extruded through the extruder die to form a semi-finished sheet. By adjusting the speed of the metering pump, the surface layer thickness of the HIPS two-layer composite sheet for the inner tank of the refrigeration device is 0.32mm. , the thickness of the bottom layer is 2.88mm, wherein the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;

[0036] The semi-finished sheet is conveyed to the traction r...

Embodiment 2

[0037] Example 2: HIPS two-layer composite plate for refrigerator door liner (total thickness: 1.2mm)

[0038] The raw material of the surface layer is TOTAL HIPS-8265.

[0039] The base material is Chevron HIPS-D6007, dyed with 5% masterbatch, and 70% crushed material or recycled granulated material is used as the recycled material.

[0040] Mix Chevron HIPS-D6007, color masterbatch and recycled material evenly to obtain the mixed material;

[0041] The natural color TOTAL HIPS-8265 and the mixture are melted and then co-extruded through the die head of the extruder to form a semi-finished sheet. By adjusting the speed of the metering pump, the surface layer thickness of the HIPS two-layer composite sheet for the inner tank of the refrigeration device is 0.12mm. The thickness of the bottom layer is 1.08mm, wherein the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;

[0042] The semi-finished sheet is conveyed to the traction roller for trac...

Embodiment 3

[0043] Example 3: HIPS two-layer composite plate for the inner tank of the refrigeration device (total thickness: 3.8mm)

[0044] The material of the surface layer is natural color Chevron HIPS-D6007.

[0045] The base material is TOTAL HIPS-8265, dyed with 5% masterbatch, and 50% crushed material or recycled granulated material is used as the return material.

[0046] Mix TOTAL HIPS-8265, color masterbatch and recycled materials evenly to obtain mixed materials;

[0047] The natural color Chevron HIPS-D6007 and the mixed material are melted and co-extruded through the extruder die to form a semi-finished sheet. By adjusting the speed of the metering pump, the surface layer thickness of the HIPS two-layer composite sheet for the inner tank of the refrigeration device is 0.38mm. , the thickness of the bottom layer is 3.42mm, wherein the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;

[0048] The semi-finished sheet is conveyed to the tractio...

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Abstract

The invention discloses an HIPS (High Impact Polystyrene) double-layer composite board for a liner of a refrigerating device and a preparation method of the HIPS double-layer composite board. The HIPS double-layer composite board for the liner of the refrigerating device comprises a surface layer and a bottom layer, wherein the surface layer is composed of a surface layer HIPS; the surface layer HIPS is selected from one or more of a natural-color HIPS, a dyeing HIPS and a modified extruded-grade HIPS; and the bottom layer comprises a natural-color extruded-grade HIPS and a recirculation scrap.. According to the HIPS double-layer composite board for the liner of the refrigerating device disclosed by the embodiment of the invention, the surface layer and the bottom layer are made of HIPS materials and all the sieved HIPS materials have good compatibility, so that the HIPS materials can be mutually mixed and the appearance and the machining performance of the board can not be obviously influenced; and therefore, the board strength can be improved and the cracking risk is reduced.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment manufacturing, more specifically, the invention relates to a HIPS two-layer composite board for the inner tank of a refrigeration equipment and a preparation method thereof. Background technique [0002] The high-gloss HIPS composite panels for refrigerators / freezers in the prior art all adopt a two-layer composite system, and the surface layer is high-gloss HIPS. The bottom layer is HIPS for ordinary extrusion grade refrigerators. This board has the following disadvantages: [0003] 1. The high-gloss surface layer has low strength, brittleness, and no corrosion resistance. The resulting lining, especially the box lining, is easy to crack, and there are quality risks; [0004] 2. In order to reduce the possibility of cracking, the thickness of the surface layer is usually less than 3%, and the mold is also affected. The gloss of the obtained box lining is actually very low, and e...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/30F25D23/08B29C47/06
Inventor 石祥祚唐涛曹家汉项灵芝贾丽
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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