Weather resistant polyethylene composite for manufacturing casing of outdoor equipment of household appliances

A technology for composite materials and home appliances, applied in the improvement field of weather-resistant polyethylene composite materials, can solve the problems of insufficient rigidity, short service life, waste of cutting materials, etc., and achieve improved physical and mechanical properties, long service life, and excellent weather resistance. Effect

Inactive Publication Date: 2009-06-03
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing outdoor unit shells of home appliances, such as air conditioner outdoor unit shells, are generally made of powder-sprayed steel plates, which have the following disadvantages: First, they are exposed to the sun and rain outdoors for many years, and are easily corroded, causing rust and affecting the appearance. The second is that the steel plate shell is heavy, which is not conducive to installation, handling and disassembly; the third is that the process is cumbersome, the forming process is difficult, and the cutting material is a lot of waste, requiring a lot of operators, and the spraying process is not environmentally friendly.
However, the commonly used plastic polyethylene has poor light resistance, poor heat aging, and insufficient rigidity. Therefore, after a long period of use, the outdoor unit of household appliances installed outdoors is prone to aging and has a short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this embodiment, 85% of polyethylene resin, 10% of mineral reinforcing agent, 4.4% of toughening modifier, 0.1% of antioxidant, 0.1% of composite light stabilizer, 0.1% of colorant, and 0.1% of coupling agent are prepared by weight. %, processing aid 0.2%, mixed and stirred evenly.

[0027] In the present embodiment, the above-mentioned mineral reinforcing agent is talcum powder; the melt index of the above-mentioned polyethylene resin is 40g / 10min, and the polyethylene resin is a high-density polyethylene resin; the above-mentioned antioxidant adopts phenolic antioxidant 1010; the above-mentioned composite light stabilizer It is a hindered amine light stabilizer; the above-mentioned toughening modifier is EPDM rubber; the above-mentioned colorant is titanium dioxide; the above-mentioned processing aid is polysiloxane; the above-mentioned coupling agent is a silane coupling agent.

[0028] The color change of the polyethylene composite material of the present inventi...

Embodiment 2

[0030] Polyethylene resin 60%, mineral reinforcing agent 33.1%, toughening modifier 5%, antioxidant 0.2%, composite light stabilizer 0.4%, colorant 0.2%, coupling agent 0.6%, processing aid 0.5% mixed and stirred evenly.

[0031] In the present embodiment, the above-mentioned mineral reinforcing agent is barium sulfate; the melt index of the above-mentioned polyethylene resin is 2g / 10min, and the polyethylene resin is a low-density polyethylene resin; the above-mentioned antioxidant adopts phosphite lipid antioxidant 168; the above-mentioned composite The light stabilizer is a benzotriazole light-shielding agent; the above-mentioned toughening modifier adopts tripolyethylene octene co-elastomer; the above-mentioned colorant is titanium dioxide; the above-mentioned processing aid is a fatty acid substance; the above-mentioned coupling agent is Titanate coupling agent.

Embodiment 3

[0033] Polyethylene resin 65%, mineral reinforcing agent 29%, toughening modifier 4.5%, antioxidant 0.18%, composite light stabilizer 0.17%, colorant 0.15%, coupling agent 0.5%, processing aid 0.5% mixed and stirred evenly.

[0034] In the present embodiment, the above-mentioned mineral reinforcing agent is calcium carbonate; the melt index of the above-mentioned polyethylene resin is 30g / 10min; the above-mentioned polyethylene resin is a linear low-density polyethylene resin; the above-mentioned antioxidant adopts phosphite antioxidant 168 The above-mentioned composite light stabilizer is a benzotriazole light shielding agent; the above-mentioned toughening modifier adopts three polyvinyl octene co-elastomer; the above-mentioned colorant is titanium dioxide; the above-mentioned processing aid is mineral oil; the above-mentioned coupling The agent is a silane coupling agent.

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Abstract

The invention relates to a weather resistant polyethylene composite used for manufacturing casings of outdoor equipment of the household appliances, which is characterized in that the polyethylene composite comprises the following ingredients by the weight percentage: 60% to 85% of polyethylene resin; 10% to 40% of mineral reinforcing agent; 3% to 5% of toughening modifiers; 0.1% to 0.2% of antioxidant; 0.1% to 0.4% of composite light stabilizer; 0.1% to 0.2% of colorant; 0.1% to 0.6% of coupling agent; and 0.2% to 0.5% of processing aid. The invention has the advantages that the casings of outdoor equipment of household appliances made of the polyethylene composite are not easily aged, the rigidity is sufficient, and the service life is long.

Description

technical field [0001] The invention relates to a weather-resistant polyethylene composite material, in particular to a weather-resistant polyethylene composite material used for making the shell of an outdoor machine of a household appliance, and belongs to an improved technology of the weather-resistant polyethylene composite material used for making the shell of an outdoor machine of a household appliance. Background technique [0002] Existing outdoor unit shells of home appliances, such as air conditioner outdoor unit shells, are generally made of powder-sprayed steel plates, which have the following disadvantages: First, they are exposed to the sun and rain outdoors for many years, and are easily corroded, causing rust and affecting the appearance. The second is that the steel plate shell is heavy, which is not conducive to installation, handling and disassembly; the third is that the process is cumbersome, the molding process is difficult, and the cutting material is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K13/04C08K5/134C08K5/526C08K5/17C08K5/3475
Inventor 高世康江峰
Owner MIDEA GRP CO LTD
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