CN1563166A

CN1563166A - Anti 141b polystyrene for liner material of refrigerator

Info

Publication number: CN1563166A
Application number: CN 200410014357
Authority: CN
Inventors: 吴南松
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-16
Filing date: 2004-03-16
Publication date: 2005-01-12
Anticipated expiration: 2024-03-16
Also published as: CN1294194C

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

Anti-141b Polystyrene Refrigerator Lining Material

Technical field

The invention belongs to a kind of material of making refrigerator lining.

Background technology

Traditional refrigerator production adopts freonll-11 (CFC) refrigeration agent, because freonll-11 is after the atmosphere high-altitude is gathered, by a series of photochemical degradation reactions, produce chlorine radical and destroy the high-altitude ozonosphere, promptly produce so-called " black hole " and destroy the environment of human survival, pentamethylene (C5) replacement fluorine Leon is used in the application of therefore international environmental protection organization cancellation freon refrigerant instead.The boiling point of pentamethylene is lower, equipment actuality according to present refrigerator manufacturing concern, pentamethylene can't be used in existing installation, and utilization is through the HCFC141b replacement fluorine Leon of international environmental protection organization approval, but because HCFC141b has very strong chemical corrosion effect to the plastic material (HIPS-ABS) of refrigerator lining and door lining, so selecting for use of refrigerator plastic material becomes the manufacturing problem of current refrigerator.At present, anti-HCFC141bABS refrigerator PP Pipe Compound and anti-HCFC141bHIPS overlay film material are ripe, but anti-HCFC141bABS refrigerator PP Pipe Compound is external production, sell insurance and freight (CIF) at 1550～1650 dollars, HIPS overlay film PE/PS causes processing charges to increase because of expressing technique is complicated, simultaneously, and because of the intermiscibility problem that causes HIPS and PE/PS alloy material of processing rim charge, original HIPS material property is descended, can't guarantee the refrigerator inner quality.

Domestic anti-HCFC141b refrigerator lining material all adopts the special-purpose overlay film 10%PE/PS of HIPS refrigerator alloy material at present, the defective of this material is the plate squeezing complex process, it is high 800～1000 yuan that the plate squeezing expense is extruded expense than individual layer, PE/PS alloy material and HIPS refrigerator PP Pipe Compound intermiscibility are better in theory, but in fact there are some problems in both intermiscibilities.

Summary of the invention

The objective of the invention is to design a kind of Anti-141b Polystyrene Refrigerator Lining Material, this inner lining material can reduce the double-layer coextrusion expense, and the reclamation rate of material is than higher, and has good intermiscibility.

According to design provided by the present invention, this material is mainly by polystyrene 15～50%; Polyethylene 23～58%; Compatilizer 7～13%; Nucleator 5～13%; Rubber elastomer 9.3～11.3%; Polyethylene wax 0.2～0.5%; Zinic stearas 0.1～0.3%; Oxidation inhibitor 0.1～0.2% is formed, and unit is a weight percentage.

Wherein, polystyrene act on the proprietary material basic material, help the materials processing moulding;

Polyethylene is the good macromolecular material of a kind of stability, has very strong resistance to chemical attack, is the main materials of anti-141b refrigerator proprietary material property;

Compatilizer: because these two kinds of molecular structures of polystyrene and polyethylene and characteristic are different, cause two kinds of high molecular polymers incompatible, under the effect of the chemical polarity key that does not have compatilizer, polystyrene, polyethylene can not be made alloy material, for this reason, compatilizer is only the medium of anti-141b refrigerator proprietary material, under the effect of compatilizer chemical polarity key, anti-141b refrigerator proprietary material is made in the organically combination of these two kinds of molecular structures of polystyrene and polyethylene and different qualities high molecular polymer; Compatilizer can be polycthylene grafted cis-butenedioic anhydride, i.e. maleic anhydride, or superoxide.

Nucleator: change crystal property, improve the materials hot deformation temperature, strongthener hardness, nucleator mainly adopts mineral compound, as lime carbonate, talcum powder, superfine glass pearl inorganic materials such as (powder);

Rubber elastomer: because this proprietary material is mainly used in refrigerator lining and door courage, bigger elongation at break must be arranged, resistance to low temperature adds a certain proportion of rubber elastomer and helps satisfying above performance requriements; Rubber elastomer is exactly a rubber, as SBS etc.

Polyethylene wax: act on super fatting agent in the process of manufacture;

Zinic stearas: act on rise in the process of manufacture lubricated and stable;

Oxidation inhibitor: act on and prevent the macromolecular material oxidative degradation in the process of manufacture; Oxidation inhibitor is by a lot, as antioxidant 1010, and oxidation inhibitor 168 etc.

Because it is refrigerator refrigerating agent that traditional refrigerator production adopts freonll-11 (CFC), international environmental protection organization considers that CFC causes so-called " black hole " phenomenon to the destruction of ozonosphere, in order to stop global warming and ultraviolet ray injury to the mankind, safeguard world's ecotope, decision cancellation CFC is a refrigerator refrigerating agent, regeneration product is a pentamethylene, because the pentamethylene boiling point is very low, traditional refrigerator manufacturing works production unit security is not enough, need to drop into substantial contribution and transform existing installation, because the restriction of production fund, the HCFC141b CFC alternative is adopted in the decision of international environmental protection organization, but because HCFC141b has very strong chemical corrosivity, original refrigerator lining and door lining (ABS-HIPS) material all can't be applicable to HCFC141b cooling agent, external Tao Shi, ENI, BASF, LG etc. are big, and chemical company then develops anti-141bABS refrigerator proprietary material and PE/PS alloy compound membrane material, China Shenzhen west Pu's novel material limited-liability company then uses the multiple film 479 of ENI PE/PS alloy to be compatilizer, usage quantity accounts for prescription more than 25%, its formulation cost is too high, and dependence external product, also can only produce and ENI PE/PS alloy 479 analogous products, can only be used for the HIPS compound membrane material.

The anti-141bABS refrigerator of the actual use of domestic some refrigerator manufacturer PP Pipe Compound, procurement cycle is long, tax included price is all more than 17500 yuan/ton, in the course of processing, all there is nitrile compound to produce, cause environmental pollution, and use PE/PS alloy compound membrane material to have processed complex, scrap stock reuse difficulty, reason is that the multiple coating materials consumption of PE/PS alloy is 10～15%, the restriction that this material is subjected to polar functional group is difficult to organically combine with HIPS refrigerator proprietary material fully, if with the scrap stock reuse then can cause refrigerator lining to ftracture and influence the refrigerator quality.

Because above factor, the inventor is according to for many years to refrigerator material applicable cases, in line with increasing income and decreasing expenditure for the fridge manufacturer, the anti-141bHIPS refrigerator proprietary material of special invention, its advantage is as follows: 1. low the materials of all filling a prescription are production domesticization to price more than 4000 yuan than external anti-141bABS refrigerator proprietary material, and forming process is convenient, storage can not influence the plastics sucking moulding quality half a year behind the machining sheet, and storage just can not plastics sucking moulding above seven days after the moulding of external anti-141bABS plate squeezing.2. material of the present invention does not all have this product at present both at home and abroad, its material is more convenient more than the processing of the multiple film HIPS of PE/PS alloy refrigerator PP Pipe Compound, scrap stock reuse refrigerator lining is 30%, the door lining is 35～40%, reduced fridge manufacturer's production cost, reduce the refrigerator product quality accident, every performance reaches refrigerator material application requiring fully, is a kind of cost degradation special engineering plastics.

Embodiment

Embodiment one

Polystyrene 35%, polyethylene 35%, polycthylene grafted cis-butenedioic anhydride 13%, lime carbonate 5%, rubber elastomer 11.3%, polyethylene wax 0.2%, Zinic stearas 0.3%, oxidation inhibitor 0.2%; This is the anti-141b overlay film of an a kind of good PE/PS proprietary material, its physical performance index: molten finger 3～5.5g/10min; Tensile strength is greater than 16Mpa; Cantilever beam impact strength is greater than 450J/m; Heat-drawn wire is greater than 75 ℃; Elongation at break is greater than 100%; The solvent of anti-141b is very strong.

Embodiment two

Polystyrene 33%, polyethylene 33.3%, polycthylene grafted cis-butenedioic anhydride 10%, palladium powder 13%, rubber elastomer 10%, polyethylene wax 0.4%, Zinic stearas 0.2%, oxidation inhibitor 0.1%; This is the anti-141b refrigerator of an a kind of good PE/PS proprietary material, its physical index: molten finger 0.7～2.5g/10min; Tensile strength is greater than 21Mpa; Cantilever beam impact strength is greater than 180J/m; Heat-drawn wire is greater than 80 ℃; Elongation at break is greater than 60%; The solvent of anti-141b is very strong.

Embodiment three

Polystyrene 15%, polyethylene 58%, superoxide 7%, superfine glass pearl 10%, rubber elastomer 9.3%, polyethylene wax 0.5%, Zinic stearas 0.1%, oxidation inhibitor 0.1%; This is a kind of good PE automotive trim plastics sucking moulding material, and resist chemical is strong, and physicals is good, molten finger 0.7～2.5g/10min; Tensile strength is greater than 21Mpa; Cantilever beam impact strength is greater than 450J/m; Heat-drawn wire is greater than 80 ℃; Elongation at break is greater than 120%.

Embodiment four

Polystyrene 50%, polyethylene 23%, maleic anhydride 7%, talcum powder 10%, rubber elastomer 9.3%, polyethylene wax 0.3%, Zinic stearas 0.2%, antioxidant 1010 0.2%; This is a kind of good PE/PS resist chemical material, its physical index: molten finger 2.5～5.5g/10min; Tensile strength is greater than 21Mpa; Cantilever beam impact strength is greater than 150J/m; Heat-drawn wire is greater than 80 ℃; Elongation at break is greater than 45%; Be adapted to injection moulding and extrusion moulding processing.

Embodiment five

Polystyrene 25%, polyethylene 50%, polycthylene grafted cis-butenedioic anhydride 7%, lime carbonate 8%, rubber elastomer (SBS) 9.3%, polyethylene wax 0.3%, Zinic stearas 0.2%, oxidation inhibitor 168 0.2%; This is a kind of good PE/PS resist chemical material, its physical index: molten finger 2.5～5.5g/10min; Tensile strength is greater than 20Mpa; Cantilever beam impact strength is greater than 300J/m; Heat-drawn wire is greater than 80 ℃; Elongation at break is greater than 90%; Be adapted to injection moulding and extrusion moulding processing.

When utilizing material of the present invention to make refrigerator lining, used manufacture craft used technology when utilizing original material making refrigerator lining is identical.

Claims

1, Anti-141b Polystyrene Refrigerator Lining Material is characterized in that, this material is mainly by polystyrene 15～50%; Polyethylene 23～58%; Compatilizer 7～13%; Nucleator 5～13%; Rubber elastomer 9.3～11.3%; Polyethylene wax 0.2～0.5%; Zinic stearas 0.1～0.3%; Oxidation inhibitor 0.1～0.2% is formed, and unit is a weight percentage.

2, Anti-141b Polystyrene Refrigerator Lining Material according to claim 1 is characterized in that, compatilizer is polycthylene grafted cis-butenedioic anhydride or superoxide.

3, Anti-141b Polystyrene Refrigerator Lining Material according to claim 1 is characterized in that, nucleator is lime carbonate or talcum powder or superfine glass pearl or palladium powder.

4, Anti-141b Polystyrene Refrigerator Lining Material according to claim 1 is characterized in that, oxidation inhibitor is antioxidant 1010 or oxidation inhibitor 168.