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Anti 141b polystyrene for liner material of refrigerator

A polystyrene and polyethylene technology, applied in the field of refrigerator lining materials, can solve problems such as cyclopentane cannot be used, complex extrusion process, chemical corrosion, etc., to reduce refrigerator product quality accidents, reduce production costs, The effect of convenient molding and processing

Inactive Publication Date: 2007-01-10
吴南松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The boiling point of cyclopentane is relatively low. According to the current equipment status of refrigerator manufacturers, cyclopentane cannot be used in existing equipment, and HCFC141b approved by international environmental protection organizations is used to replace Freon. The lining plastic material (HIPS-ABS) has a strong chemical corrosion effect, so the selection of refrigerator plastic materials has become a topic in the refrigerator manufacturing industry today.
At present, anti-HCFC141bABS special materials for refrigerators and anti-HCFC141bHIPS coating materials have matured, but anti-HCFC141bABS special materials for refrigerators are all produced abroad, and the CIF sales price is 1550-1650 US dollars. HIPS coated PE / PS is caused by complex extrusion process The processing cost increases, and at the same time, the compatibility problem between HIPS and PE / PS alloy material is caused by the processing edge material, which reduces the performance of the original HIPS material and cannot guarantee the internal quality of the refrigerator
[0003] At present, the domestic anti-HCFC141b refrigerator lining materials are all made of 10% PE / PS alloy material specially coated for HIPS refrigerators. The defect of this material is that the extrusion process is complicated, and the extrusion cost is 800-1000 yuan higher than that of single-layer extrusion. Theory The above PE / PS alloy material has good compatibility with HIPS refrigerator special material, but in fact there are some problems in the compatibility of the two

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Polystyrene 35%, polyethylene 35%, polyethylene grafted maleic anhydride 13%, calcium carbonate 5%, rubber elastomer 11.3%, polyethylene wax 0.2%, zinc stearate 0.3%, antioxidant 0.2%; This is a very good special material for PE / PS anti-141b coating. Its physical performance indicators: melt index 3-5.5g / 10min; tensile strength greater than 16Mpa; cantilever beam impact strength greater than 450J / m; heat distortion temperature greater than 75°C; elongation at break greater than 100%; strong resistance to 141b solvents.

Embodiment 2

[0020] Polystyrene 33%, polyethylene 33.3%, polyethylene grafted maleic anhydride 10%, ultrafine glass powder 13%, rubber elastomer 10%, polyethylene wax 0.4%, zinc stearate 0.2%, antioxidant 0.1 %; This is a very good special material for PE / PS anti-141b refrigerators. Its physical indicators: melt index 0.7-2.5g / 10min; tensile strength greater than 21Mpa; Izod impact strength greater than 180J / m; heat distortion temperature greater than 80°C; elongation at break greater than 60%; strong resistance to 141b solvents.

Embodiment 3

[0022] 15% polystyrene, 58% polyethylene, 7% peroxide, 10% ultrafine glass beads, 9.3% rubber elastomer, 0.5% polyethylene wax, 0.1% zinc stearate, 0.1% antioxidant; It is a very good PE plastic molding material for automotive interiors, with strong chemical corrosion resistance and excellent physical properties. The melt index is 0.7-2.5g / 10min; the tensile strength is greater than 21Mpa; The temperature is greater than 80°C; the elongation at break is greater than 120%.

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Abstract

A lining mterial of refrigerator is prepared mainly from polystyrene, polyethylene, compatilizer, nuclearing agent, rubber elastomer, Tissuemat E, Zinc stearate and antioxygen according to design scheme provided by the present invention.

Description

technical field [0001] The invention belongs to a material for making a refrigerator lining. Background technique [0002] The traditional refrigerator manufacturing industry uses freon (CFC) refrigerants. After freon accumulates in the high altitude of the atmosphere, it undergoes a series of photochemical degradation reactions to generate chlorine free radicals and destroy the high-altitude ozone layer, that is, the so-called "black hole" that destroys the environment in which human beings live. Therefore, international environmental protection organizations cancel the application of Freon refrigerants and use cyclopentane (C5) instead of Freon. The boiling point of cyclopentane is relatively low. According to the current equipment status of refrigerator manufacturers, cyclopentane cannot be used in existing equipment, and HCFC141b approved by international environmental protection organizations is used to replace Freon. The plastic material (HIPS-ABS) of the lining has a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K5/11
Inventor 吴南松
Owner 吴南松