CN104098865A - Polystyrene-polyethylene resin alloy material used for refrigerator inner container and preparation method thereof - Google Patents
Polystyrene-polyethylene resin alloy material used for refrigerator inner container and preparation method thereof Download PDFInfo
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- CN104098865A CN104098865A CN201410314327.6A CN201410314327A CN104098865A CN 104098865 A CN104098865 A CN 104098865A CN 201410314327 A CN201410314327 A CN 201410314327A CN 104098865 A CN104098865 A CN 104098865A
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Abstract
The invention discloses a polystyrene-polyethylene resin alloy material used for refrigerator inner container and a preparation method thereof. The material is prepared from the following components in parts: 500 to 800 parts of polystyrene, 200 to 500 parts of polythene, 0 to 60 parts of a filling additive, 0 to 50 parts of a toughening agent, 20 to 50 parts of an interface improving agent, 3 to 6 parts of an anti-oxidant, 3 to 6 parts of a lubricant, and 0 to 2 parts of a grafting activator. According to the invention, the prepared polystyrene-polyethylene resin alloy material is excellent in mechanical property, excellent in solvent resistance and oil resistance, and free of cracking, can be widely applied to single-layered inner container workpieces in a refrigerator, reduces the production cost for the refrigerator inner container, and simplifies the processing procedures of the refrigerator inner container.
Description
Technical field
The invention belongs to high molecular polymer modification field, be specifically related to a kind of polystyrene-poly ethenoid resin alloy material for inner container of icebox and preparation method thereof.
Background technology
At present, the inner container of icebox of domestic manufacturers mainly contains following two production process routes:
The first, the alloy film covered material of polystyrene/polyethylene (PS/PE) is as internal layer, with the coextrusion of extrusion grade shock resistance polystyrene (HIPS) raw material, plastics sucking moulding is produced again, and its main drawback is as follows: inner film coating PS/PE alloy material and HIPS consistency are poor, easily peel off; In actual use, the sheet material of this double-deck PS/PE+HIPS is lower to the degree of protection of chemical solvents and other oils chemical, and inner bag is easy to crack; Toughness and the intensity of the outer HIPS of inner bag are lower, also can cause cracking.
The second, use extrusion grade HIPS raw material as inner bag internal layer, outer General Purpose Polystyrenre (GPPS) raw material that uses, adopts coextrusion processes, and its main drawback is as follows: because GPPS oil-proofness is poor, be easy to cracking in use; HIPS directly contacts with foaming layer, is easily caused cracking by solvent corrosion residual in PU; Toughness and the intensity of the outer HIPS of inner bag are lower, also can cause cracking.
The common feature of above-mentioned two techniques is to use HIPS and GPPS or the overlay film material coextrusion with PS/PE alloy, and more complicated in technique, production cost is also higher.And in actual production, the problem of liner cracking is more serious.
For above problem, though domestic Ye You company researchs and analyses it, and propose some solutions, but practicality is not strong.Replace as proposed a kind of individual layer PS/PE alloy that uses in patent 200410014357.1 material and technique thereof that double-layer coextrusion in the past goes out, although solved a part of liner cracking problem, but its mechanical property does not reach the requirement using as inner container of icebox material, show according to disclosed data, its tensile strength is only 16 ~ 21MPa, and socle girder unnotched impact strength is only 450J/M.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of polystyrene-poly ethenoid resin alloy material that can be used for individual layer inner container of icebox of excellent combination property.
Technical scheme of the present invention is as follows: a kind of polystyrene-poly ethenoid resin alloy material for inner container of icebox, is characterized in that: be prepared from by following components by weight parts:
Polystyrene (PS): 500 ~ 800 parts;
Polyethylene (PE): 200-500 part;
Filling additive: 0 ~ 60 part;
Toughner: 0 ~ 50 part;
Interface activator: 20 ~ 50 parts;
Antioxidant: 3 ~ 6 parts;
Lubricant: 3 ~ 6 parts;
Grafting promoting agent: 0 ~ 2 part
Further, described polystyrene (PS) is General Purpose Polystyrenre (HIPS) or shock resistance polystyrene (GPPS); Described polyethylene (PE) is high density polyethylene(HDPE) (HDPE), Low Density Polyethylene (LDPE), linear low density polyethylene (LLDPE).
Described filling additive is nucleator, and described interface activator is rubber-like elastomerics.
Described nucleator comprises calcium carbonate, talcum powder, mica powder, glass microballon or Abrasive glass dust; Described rubber-like elastomerics comprises styrene-butadiene-styrene block copolymer (being called for short SBS) or hydrogenation styrene-butadiene-styrene block copolymer (being called for short SEBS).
Described toughner is the one in nucleocapsid structure class MBS terpolymer (trade(brand)name EM500A), butyl acrylate grafting ASA powder copolymer (trade(brand)name 960A), nucleocapsid structure class methyl methacrylate-acrylate-silicone based toughner (trade(brand)name S2001), ethene-methyl acrylate-glycidyl methacrylate random terpolymer (trade(brand)name AX8900).
Described antioxidant is β-(3; 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid (trade(brand)name 1076), three [2.4-di-tert-butyl-phenyl] phosphorous acid ester (trade(brand)name 168), N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) at least one in hexanediamine (trade(brand)name 1098) and four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (trade(brand)name 1010).
Described lubricant is at least one in ethylene bis stearamide, calcium stearate, tetrafluoroethylene, white oil, silicone oil.
Described grafting promoting agent is at least one in polyethylene cis-butenedioic anhydride, PE grafted maleic anhydride multipolymer, dicumyl peroxide, dioctyl phthalate (DOP).
Another object of the present invention is to provide a kind of method of above-mentioned polystyrene-poly ethenoid resin alloy material, comprises the following steps:
(1) by proportioning, polystyrene, polyethylene, filling additive, toughner, interface activator, antioxidant, lubricant, grafting promoting agent being put into rotating speed is that the mixing machine of 1000 ~ 1500 r/min mixes;
(2) heating, while making material temperature be warmed up to 50 ~ 60 DEG C, is under 500 ~ 1000r/min, to continue to mix at rotating speed;
(3) in the time that temperature reaches 80 ~ 90 DEG C, discharging obtains mixture;
(4) mixture extruding pelletization in forcing machine is obtained to product, each section of temperature of forcing machine is 170 DEG C ~ 200 DEG C.
The present invention compared with the existing technology, has the following advantages and beneficial effect:
1, the excellent mechanical of polystyrene-poly ethenoid resin alloy material of the present invention, toughness is strong, good rigidly; The product making is carried out to injection moulding by ASTM standard, injection moulding batten carries out performance test stablize 24h under 23 DEG C, relative humidity 50% condition after, and its tensile strength reaches 22MPa, and flexural strength reaches 38MPa, modulus in flexure reaches 1470MPa, and notch shock reaches 32KJ/M2.
2, the resistance to solvent of polystyrene-poly ethenoid resin alloy material of the present invention, oil resistance excellence; Stable mechanical property before and after the oil resistant of resistance to solvent test; To after batten bending, test for detection of its resistance to pentamethylene and oil resistant with the fixing container that is full of the vessel of pentamethylene steam and fills with sesame oil of putting into respectively of fixture, its resistance to pentamethylene test back draft performance reservation amount reaches 97%, and oil resistant detected result is flawless.
3, preparation were established of the present invention is simpler, only need use individual layer sheet material extrusion equipment when client uses; And produce more stablely, loss is little.
4, polystyrene-poly ethenoid resin alloy material of the present invention can be widely used in individual layer in refrigerator industry and be extruded into sheet material, inner bag product is made in plastic uptake or mold pressing again, taking replace the special HIPS of traditional inner bag material and inner film coating material coextrusion sheet material again plastic uptake as the material and technology design of inner bag, it, brings great convenience to material logistics for one deck unified materials at two layers; On the other hand, individual layer extrudes that to compare the technique of coextrusion simply many, produces comparatively easyly, and quality is also more stable; Also client's equipment and maintenance costs have been saved simultaneously.
Embodiment
Below in conjunction with specific examples, content of the present invention is further detailed; but described embodiment is not the simple restriction to connotation of the present invention, any simple change of having done based on connotation of the present invention or be equal within replacement all should belong to the present invention's scope required for protection.
embodiment 1
It is that the mixing machine of 1000r/min mixes that 500 parts of HIPS resins, 390 parts of PE resins, 60 parts of talcum powder, 20 parts of EM-500A, 20 parts of SBS, 1 part of dicumyl peroxide, 2 parts of antioxidant 1076s, 4 parts of irgasfos 168s, 3 parts of ethylene bis stearamides are put into rotating speed together; Heating wait expecting that nature is warmed up to after 50 DEG C, is that 500r/min proceeds to mix by rotating speed; Be warming up to 90 DEG C of dischargings; Finally by mixture in length-to-diameter ratio 40, in the forcing machine of screw diameter 35mm, extruding pelletization obtains product, and wherein the feed opening temperature setting of forcing machine is set to 170 DEG C, screw zones extrusion temperature and is set to 170 ~ 200 DEG C, 200 DEG C of head temperatures, screw speed 500r/min.
embodiment 2
It is that the high-speed mixer of 1500r/min mixes that 600 parts of HIPS resins, 250 parts of PE resins, 30 parts of talcum powder, 30 parts of SBS, 2 parts of antioxidant 1076s, 2 parts of irgasfos 168s, 3 parts of ethylene bis stearamides, 3 parts of white oils are put into rotating speed together, heating is warmed up to after 60 DEG C material temperature, is under 700r/min, to proceed to mix at rotating speed; Be warming up to 80 DEG C of dischargings; Finally by mixture in length-to-diameter ratio 40, in the forcing machine of screw diameter 35mm, extruding pelletization obtains product, wherein the feed opening temperature setting of forcing machine is set to 170 DEG C, screw zones extrusion temperature is set to 170 ~ 200 DEG C, 200 DEG C of head temperatures, screw speed 500r/min.
embodiment 3
It is that the high-speed mixer of 1200r/min mixes that 750 parts of HIPS resins, 200 parts of PE resins, 50 parts of SBS, 10 parts of AX8900,3 parts of antioxidant 1076s, 4 parts of tetrafluoroethylene, 2 parts of dioctyl phthalate (DOP)s are put into rotating speed together, heating is warmed up to after 55 DEG C material temperature, be under 900r/min, to proceed to mix at rotating speed, be warming up to 90 DEG C of dischargings; By mixture, in length-to-diameter ratio 40, in the forcing machine of screw diameter 35mm, extruding pelletization obtains product, and wherein the feed opening temperature setting of forcing machine is set to 170 DEG C, and screw zones extrusion temperature is set to 170 ~ 200 DEG C, 200 DEG C of head temperatures, screw speed 500r/min.
embodiment 4
It is that the high-speed mixer of 1300r/min mixes that 800 parts of HIPS resins, 500 parts of PE resins, 30 parts of SEBS, 50 parts of 960A, 1098,4 parts of antioxidant 1010s of 2 parts of oxidation inhibitor, 4 parts of calcium stearates, 1 part of polyethylene cis-butenedioic anhydride, 1 part of dicumyl peroxide are put into rotating speed together, heating is warmed up to after 50 DEG C material temperature, be under 1000r/min, to proceed to mix at rotating speed, be warming up to 85 DEG C of dischargings; By mixture, in length-to-diameter ratio 40, in the forcing machine of screw diameter 35mm, extruding pelletization obtains product, and wherein the feed opening temperature setting of forcing machine is set to 170 DEG C, and screw zones extrusion temperature is set to 170 ~ 200 DEG C, 200 DEG C of head temperatures, screw speed 500r/min.
The product making in above-described embodiment 1-4 is carried out to injection moulding by ASTM standard, and injection moulding batten carries out performance test stablize 24h under 23 DEG C, relative humidity 50% condition after, and described injection mold is the injection moulding machine that is applicable to injection moulding PS and PE material.Each performance test standard is as follows:
Tensile strength, according to ASTM D638, adopts dumbbell shape batten;
Flexural strength and modulus in flexure, according to ASTM D790, adopt rectangle batten;
Simple beam impact strength is according to ASTM D6110, and gap width is 1/5 of batten width;
Vicat softening temperature is according to ASTM D1525.
When the experiment test of resistance to pentamethylene, put into vacuum ware by fixing (radian internal diameter 20cm) with fixture after the bending of American Standard tensile bars, after vacuumizing, pass into pentamethylene steam, and the saturated vapor pressure of pentamethylene while ensureing that ware internal pressure is room temperature, after 4h, take out and observe surface and test its tensile property.
Oil resistant experiment is carried out in the following manner: by fixing (radian internal diameter 20cm) with fixture after the bending of American Standard tensile bars, steep in the container that fills with sesame oil; In normal temperature (23 DEG C, 48h) and the lower placement of high cold cycle (40 DEG C/70 DEG C each 4h, five circulations), finish to observe its surface after test respectively.
The performance test results of each embodiment is in table 1.
Interpretation of result:
1, the bending of PS/PE alloy material provided by the present invention, impact tensile property are all better than the conventional trade mark HIPS raw materials such as 2710,1180 in refrigerator factory largely., and solvent resistance is good.
2, the polystyrene-poly ethenoid resin alloy material of being prepared by the present invention is processed into inner container of icebox, tests and show that its inner bag material can effectively resist the dissolvent residual in whipping agent in its use procedure; To its outer oiling test, after its high cold cycle, all do not ftracture; So alloy material prepared by the present invention is relatively applicable to process inner container of icebox.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, is applied in other embodiment and needn't passes through performing creative labour such as the ratio of fine setting major ingredient, auxiliary agent etc., fine setting implementing process or General Principle described herein.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (9)
1. for a polystyrene-poly ethenoid resin alloy material for inner container of icebox, it is characterized in that: be prepared from by following components by weight parts:
Polystyrene: 500 ~ 800 parts;
Polyethylene: 200-500 part;
Filling additive: 0 ~ 60 part;
Toughner: 0 ~ 50 part;
Interface activator: 20 ~ 50 parts;
Antioxidant: 3 ~ 6 parts;
Lubricant: 3 ~ 6 parts;
Grafting promoting agent: 0 ~ 2 part.
2. polystyrene-poly ethenoid resin alloy material according to claim 1, is characterized in that: described polystyrene is General Purpose Polystyrenre or shock resistance polystyrene; Described polyethylene is high density polyethylene(HDPE), Low Density Polyethylene, linear low density polyethylene.
3. polystyrene-poly ethenoid resin alloy material according to claim 1, is characterized in that: described filling additive is nucleator, described interface activator is rubber-like elastomerics.
4. polystyrene-poly ethenoid resin alloy material according to claim 3, is characterized in that: described nucleator comprises calcium carbonate, talcum powder, mica powder, glass microballon or Abrasive glass dust; Described rubber-like elastomerics comprises styrene-butadiene-styrene block copolymer or hydrogenation styrene-butadiene-styrene block copolymer.
5. polystyrene-poly ethenoid resin alloy material according to claim 1, is characterized in that: described toughner is the one in nucleocapsid structure class MBS terpolymer, butyl acrylate grafting ASA powder copolymer, nucleocapsid structure class methyl methacrylate-acrylate-silicone based toughner, ethene-methyl acrylate-glycidyl methacrylate random terpolymer.
6. polystyrene-poly ethenoid resin alloy material according to claim 1; it is characterized in that: described antioxidant is β-(3; 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) at least one in hexanediamine and four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
7. polystyrene-poly ethenoid resin alloy material according to claim 1, is characterized in that: described lubricant is at least one in ethylene bis stearamide, calcium stearate, tetrafluoroethylene, white oil, silicone oil.
8. polystyrene-poly ethenoid resin alloy material according to claim 1, is characterized in that: described grafting promoting agent is at least one in polyethylene cis-butenedioic anhydride, PE grafted maleic anhydride multipolymer, dicumyl peroxide, dioctyl phthalate (DOP).
9. a method of preparing the polystyrene-poly ethenoid resin alloy material as described in any one in claim 1-8, is characterized in that: comprise the following steps:
(1) by proportioning, polystyrene, polyethylene, filling additive, toughner, interface activator, antioxidant, lubricant, grafting promoting agent being put into rotating speed is that the mixing machine of 1000 ~ 1500 r/min mixes;
(2) heating, while making material temperature be warmed up to 50 ~ 60 DEG C, is under 500 ~ 1000r/min, to continue to mix at rotating speed;
(3) in the time that temperature reaches 80 ~ 90 DEG C, discharging obtains mixture;
(4) mixture extruding pelletization in forcing machine is obtained to product, each section of temperature of forcing machine is 170 DEG C ~ 200 DEG C.
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Cited By (11)
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| CN105061880A (en) * | 2015-08-28 | 2015-11-18 | 合肥会通新材料有限公司 | High gloss and high tenacity alloy material for refrigerator liner and preparation method thereof |
| CN105504638A (en) * | 2016-01-14 | 2016-04-20 | 安徽联科水基材料科技有限公司 | High-gloss foaming-agent-corrosion-resistant HIPS modified material special for end cover of refrigerator door |
| CN105504637A (en) * | 2015-12-31 | 2016-04-20 | 苏州井上高分子新材料有限公司 | Low-gloss HIPS (high impact polystyrene) modified resin and preparation method thereof |
| CN108164907A (en) * | 2018-01-18 | 2018-06-15 | 珠海市金塑塑料有限公司 | It is a kind of to be used to make low temperature resistant weatherability HIPS/PE alloy materials of Plastic card and preparation method thereof |
| CN108276691A (en) * | 2018-01-11 | 2018-07-13 | 青岛海尔股份有限公司 | One kind material of inner container of icebox containing low volatile organic and preparation method thereof |
| CN109735045A (en) * | 2018-11-19 | 2019-05-10 | 青岛海尔股份有限公司 | Inner container of icebox plate and preparation method thereof, inner container of icebox |
| CN112143153A (en) * | 2020-09-30 | 2020-12-29 | 海信容声(广东)冰箱有限公司 | Refrigerator liner, refrigerator liner material and preparation method thereof |
| CN112778675A (en) * | 2020-12-23 | 2021-05-11 | 金发科技股份有限公司 | Oil-resistant high-gloss polystyrene material and preparation method and application thereof |
| CN113583375A (en) * | 2021-07-27 | 2021-11-02 | 合肥圆融新材料有限公司 | Oil-resistant antibacterial HIPS (high impact polystyrene) alloy material and preparation method thereof |
| CN115490973A (en) * | 2022-08-30 | 2022-12-20 | 武汉金发科技有限公司 | Polystyrene-polyethylene alloy composite material and preparation method and application thereof |
| CN115612238A (en) * | 2022-11-08 | 2023-01-17 | 武汉金发科技有限公司 | Polystyrene-polyethylene alloy material and preparation method and application thereof |
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| CN105061880B (en) * | 2015-08-28 | 2018-03-06 | 会通新材料股份有限公司 | A kind of high glaze, high tenacity inner container of icebox alloy material and preparation method thereof |
| CN105061880A (en) * | 2015-08-28 | 2015-11-18 | 合肥会通新材料有限公司 | High gloss and high tenacity alloy material for refrigerator liner and preparation method thereof |
| CN105504637A (en) * | 2015-12-31 | 2016-04-20 | 苏州井上高分子新材料有限公司 | Low-gloss HIPS (high impact polystyrene) modified resin and preparation method thereof |
| CN105504638A (en) * | 2016-01-14 | 2016-04-20 | 安徽联科水基材料科技有限公司 | High-gloss foaming-agent-corrosion-resistant HIPS modified material special for end cover of refrigerator door |
| CN108276691A (en) * | 2018-01-11 | 2018-07-13 | 青岛海尔股份有限公司 | One kind material of inner container of icebox containing low volatile organic and preparation method thereof |
| CN108276691B (en) * | 2018-01-11 | 2020-11-20 | 海尔智家股份有限公司 | Refrigerator liner material containing low-volatility organic matter and preparation method thereof |
| CN108164907A (en) * | 2018-01-18 | 2018-06-15 | 珠海市金塑塑料有限公司 | It is a kind of to be used to make low temperature resistant weatherability HIPS/PE alloy materials of Plastic card and preparation method thereof |
| CN109735045B (en) * | 2018-11-19 | 2021-07-23 | 海尔智家股份有限公司 | Plate for refrigerator liner, preparation method of plate and refrigerator liner |
| CN109735045A (en) * | 2018-11-19 | 2019-05-10 | 青岛海尔股份有限公司 | Inner container of icebox plate and preparation method thereof, inner container of icebox |
| CN112143153A (en) * | 2020-09-30 | 2020-12-29 | 海信容声(广东)冰箱有限公司 | Refrigerator liner, refrigerator liner material and preparation method thereof |
| CN112778675A (en) * | 2020-12-23 | 2021-05-11 | 金发科技股份有限公司 | Oil-resistant high-gloss polystyrene material and preparation method and application thereof |
| CN113583375A (en) * | 2021-07-27 | 2021-11-02 | 合肥圆融新材料有限公司 | Oil-resistant antibacterial HIPS (high impact polystyrene) alloy material and preparation method thereof |
| CN113583375B (en) * | 2021-07-27 | 2024-02-20 | 合肥圆融新材料有限公司 | Oil-resistant antibacterial HIPS alloy material and preparation method thereof |
| CN115490973A (en) * | 2022-08-30 | 2022-12-20 | 武汉金发科技有限公司 | Polystyrene-polyethylene alloy composite material and preparation method and application thereof |
| CN115612238A (en) * | 2022-11-08 | 2023-01-17 | 武汉金发科技有限公司 | Polystyrene-polyethylene alloy material and preparation method and application thereof |
| CN115612238B (en) * | 2022-11-08 | 2023-08-29 | 武汉金发科技有限公司 | Polystyrene-polyethylene alloy material and preparation method and application thereof |
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