CN103483757A - TV set shell dedicated impact-resistant polystyrene material and preparation method thereof - Google Patents
TV set shell dedicated impact-resistant polystyrene material and preparation method thereof Download PDFInfo
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- CN103483757A CN103483757A CN201310433295.7A CN201310433295A CN103483757A CN 103483757 A CN103483757 A CN 103483757A CN 201310433295 A CN201310433295 A CN 201310433295A CN 103483757 A CN103483757 A CN 103483757A
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- impact polystyrene
- polystyrene material
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to a TV set shell dedicated impact-resistant polystyrene material, which is composed of the following components in weight percent: 73-80% of impact resistant polystyrene resin, 8-11% of glass fibers, 5-7% of a mineral packing, 4-7% of a toughening agent, 0.1-0.5% of a lubricating agent, 0.1-1% of an anti-oxygen agent, and 1-2% of other auxiliary agents. The invention further relates to a preparation method for the glass fiber reinforced impact-resistant polystyrene material. According to the invention, the glass fibers are adopted, so that the effect of low washing shrinkage of the material is enhanced so as to solve the shrinkage problem of a TV shell product in winter and summer; the mineral packing is added, so that the material has an excellent mechanical property, the surface effect is good, and the fiber emergence is avoided.
Description
Technical field
The present invention relates to a kind of macromolecular material, refer in particular to impact polystyrene (HIPS) material of a kind of tv shell special use and preparation method thereof.
Background technology
Impact polystyrene (High Impact Polystyrene, referred to as HIPS) there are excellent mechanical property, the good characteristics such as processing characteristics, be specially adapted to those and require high combination property, the application of this control and the high performance-price ratio of hoping for success again simultaneously.Shell material after the televisor industry, take the HIPS material as main flow at present.But during injection moulding large size product, can show product shrink warpage, when the summer in winter, the temperature difference was larger, the product size heterogeneity is more obvious, affects final assembly especially.
Summary of the invention
Technical problem to be solved by this invention is to provide impact polystyrene material of a kind of low contraction and surperficial zero defect and physical and mechanical properties excellence and preparation method thereof.
Solving the technical scheme that technical problem of the present invention adopts is: provide a kind of glass to strengthen the impact polystyrene material, the component of following weight percent content, consist of: the impact polystyrene resin is 73-80%; Glass fibre is 8-12%; Mineral-filled is 5-7%; Toughner is 4-7%; Lubricant is 0.1-0.5%; Oxidation inhibitor is 0.1-1%; Other auxiliary agent 1-2%.
Wherein, described impact polystyrene resin is SKH-128G.Described glass fibre is that the megalith company production trade mark is 988A.Wherein, described mineral-filled be process white.Wherein, the segmented copolymer (SBS) that described toughner is vinylbenzene and divinyl.Wherein, described oxidation inhibitor [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] the pentaerythritol ester primary antioxidant that is four and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant is composite.Wherein, described other auxiliary agents comprise processing aid, ultraviolet absorbers.
Solving another technical scheme that technical problem of the present invention adopts is: provide a kind of glass as described above to strengthen the preparation method of impact polystyrene material, comprise the steps: step 1: first by the HIPS resin 80 ℃ of forced air dryings 2～3 hours; Step 2: each component that will take is mixed and is stirred 5-10 minute, and mixing speed is 300-450 rev/min, obtains a mixture; Step 3: the mixture in step 2 is put in twin screw extruder, through frit reaction, extruding pelletization; The processing condition of twin screw extruder are: district temperature 180-200 ℃, bis-district temperature 190-210 ℃, tri-district temperature 190-210 ℃, tetra-district temperature 190-210 ℃, five district temperature 190-210 ℃, six district temperature 150-180 ℃, seven district temperature 150-180 ℃, eight district temperature 150-180 ℃; Screw speed 350-450 rev/min, finally obtain glass and strengthen the impact polystyrene material.
Glass fibre is a kind of ceramic of excellent performance, with macromolecular material is compound, reaches strengthening action, affects the crystallinity of material simultaneously, reduces material contracts, meets the stability of size.
Prepare matrix material with HIPS and glass fibre, can solve large size product shrinkage strain problem, add a certain amount of microcosmic glomerate mineral-filled simultaneously, the floating fibre of product surface is had certain opacifying property, avoid the surface imperfection caused because of adding of glass fibre, can prepare the mechanical property excellence, meet the material that product requirement and surface effect are good.
Compared with prior art, the present invention has the following advantages: 1, glass enhancing impact polystyrene material preparation process of the present invention is simple, cost is low.2, the present invention can prepare the mechanical property excellence, meets product size and requires and the good material of surface effect.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Impact polystyrene has excellent mechanical property, the good characteristics such as processing characteristics, makes itself and glass fibre prepare matrix material, can solve the buckling deformation of large size product, for television rear shell.A kind of impact polystyrene material provided by the invention, its composition comprises by weight: HIPS resin 73-80%; Glass fibre 8-12%; Mineral-filled 5-7%; Toughner 4-7%; Lubricant 0.1-0.5%; Oxidation inhibitor 0.1-1%; Other auxiliary agent 1-2%.
Wherein, this HIPS resin is the SKH-128G(Korea S SK company trade mark).This glass fibre is 988A (the megalith company trade mark).This is mineral-filled is process white.The segmented copolymer that this toughner is vinylbenzene and divinyl (SBS).This oxidation inhibitor is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidant and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant composite.These other auxiliary agents comprise processing aid, ultraviolet absorbers.
Embodiment 1
Glass in this embodiment 1 strengthens the HIPS material, and content, composed of the following components: HIPS resin 79%, glass fibre 8%, mineral-filled 5% by weight percentage, toughner vinylbenzene and butadiene block copolymer 5%, lubricant 0.5%, oxidation inhibitor 0.5%, other auxiliary agents 2%.
The preparation method that this glass strengthens the HIPS material comprises following concrete steps:
Step 1: first by the HIPS resin 80 ℃ of forced air dryings 2～3 hours;
Step 2: each component that will take is poured mix and blend 8min in agitation vat into, and mixing speed is 400r/min, obtains mixture;
Step 3: the mixture in step 2 is dropped in twin screw extruder, through frit reaction, extruding pelletization; The processing condition of twin screw extruder are: 160 ℃ of district's temperature 190 ℃, bis-district's temperature 190 ℃, tri-district's temperature 200 ℃, tetra-district's temperature 200 ℃, five district's temperature 200 ℃, six district's temperature 170 ℃, seven district's temperature 170 ℃, eight district's temperature; Screw speed 400r/min, finally obtain glass and strengthen the HIPS material.
Embodiment 2
Glass in this embodiment 2 strengthens the HIPS material, and content, composed of the following components: HIPS resin 75%, glass fibre 12%, mineral-filled 5% by weight percentage, toughner vinylbenzene and butadiene block copolymer 5%, lubricant 0.5%, oxidation inhibitor 0.5%, other auxiliary agents 2%.
The preparation method that this glass strengthens the HIPS material comprises following concrete steps:
Step 1: first by the HIPS resin 80 ℃ of forced air dryings 2～3 hours;
Step 2: each component that will take is poured mix and blend 8min in agitation vat into, and mixing speed is 400r/min, obtains mixture;
Step 3: the mixture in step 2 is dropped in twin screw extruder, through frit reaction, extruding pelletization; The processing condition of twin screw extruder are: 160 ℃ of district's temperature 190 ℃, bis-district's temperature 190 ℃, tri-district's temperature 200 ℃, tetra-district's temperature 200 ℃, five district's temperature 200 ℃, six district's temperature 170 ℃, seven district's temperature 170 ℃, eight district's temperature; Screw speed 400r/min, finally obtain glass and strengthen the HIPS material.
Embodiment 3
Glass in this embodiment 3 strengthens the HIPS material, and content, composed of the following components: HIPS resin 73%, glass fibre 12%, mineral-filled 7% by weight percentage, toughner vinylbenzene and butadiene block copolymer 5%, lubricant 0.5%, oxidation inhibitor 0.5%, other auxiliary agents 2%.
The preparation method that this glass strengthens the HIPS material comprises following concrete steps:
Step 1: first by the HIPS resin 80 ℃ of forced air dryings 2～3 hours;
Step 2: each component that will take is poured mix and blend 8min in agitation vat into, and mixing speed is 400r/min, obtains mixture;
Step 3: the mixture in step 2 is dropped in twin screw extruder, through frit reaction, extruding pelletization; The processing condition of twin screw extruder are: 160 ℃ of district's temperature 190 ℃, bis-district's temperature 190 ℃, tri-district's temperature 200 ℃, tetra-district's temperature 200 ℃, five district's temperature 200 ℃, six district's temperature 170 ℃, seven district's temperature 170 ℃, eight district's temperature; Screw speed 400r/min, finally obtain glass and strengthen the HIPS material
Performance test and evaluation:
Particle material prepared by above-described embodiment 1-3 first in convection oven under the condition of 80-90 ℃ dry 2 hours, then will dried particle material make the standard testing batten with injection moulding machine and test.Wherein, tensile strength is tested by the ASTMD-638 standard.Specimen types is the I type, batten size (mm): (176 ± 2) (length) * (12.6 ± 0.2) (end width) * (3.05 ± 0.2) (thickness), and draw speed is 50mm/min; Notched Izod impact strength is tested by the ASTMD-256 standard.Specimen types is the I type, specimen size (mm): (63 ± 2) * (12.45 ± 0.2) * (3.1 ± 0.2); The breach type is category-A, and the breach residual thickness is 1.9mm; Shrinking percentage is pressed the ASTMD-955 standard testing.The material properties test data of embodiment 1-3 are as shown in the table:
Table 1
As can be seen from the above table, during glass fiber content 8-12%, the intensity of material has obtained enhancing, and impelling strength is better, and the relative HIPS raw material of the shrinking percentage of material has reduction, and the larger shrinking percentage of glass fiber content is lower.The particle prepared from embodiment 1-3 is pressed into sheet material can be found out, surface effect embodiment 1 is better than 2, embodiment 3 and is better than 2.Illustrate and adding of glass product surface is had to disadvantageous effect, but the filling of barium sulfate can effectively reduce this defect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the special-purpose impact polystyrene material of tv shell, is characterized in that, its composition is by weight ratio:
Impact polystyrene resin 73-82%;
Glass fibre 8-11%;
Mineral-filled 5-7%;
Toughner 4-7%;
Lubricant 0.1-0.5%;
Oxidation inhibitor 0.1-1%;
Other auxiliary agent 1-2%.
2. impact polystyrene material according to claim 1 is characterized in that: described mineral-filled be process white.
3. impact polystyrene material according to claim 1, is characterized in that: the segmented copolymer that described toughner is vinylbenzene and divinyl.
4. impact polystyrene material according to claim 1, it is characterized in that: described oxidation inhibitor is four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidant and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant composite.
5. impact polystyrene material according to claim 1, it is characterized in that: described other auxiliary agents comprise processing aid, ultraviolet absorbers.
6. the preparation method of an impact polystyrene material according to claim 1, it is characterized in that: it comprises the steps:
Step 1, first by the HIPS resin 80 ℃ of forced air dryings 2～3 hours;
Step 2, each component mix and blend 5-10min that will take, mixing speed is 300-450r/min, obtains a mixture;
Step 3: the mixture in step 2 is dropped in twin screw extruder, through frit reaction, extruding pelletization; The processing condition of twin screw extruder are: district temperature 180-200 ℃, bis-district temperature 190-210 ℃, tri-district temperature 190-210 ℃, tetra-district temperature 190-210 ℃, five district temperature 190-210 ℃, six district temperature 150-180 ℃, seven district temperature 150-180 ℃, eight district temperature 150-180 ℃; Screw speed 350-450 rev/min, obtain glass and strengthen the impact polystyrene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433295.7A CN103483757A (en) | 2013-09-22 | 2013-09-22 | TV set shell dedicated impact-resistant polystyrene material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310433295.7A CN103483757A (en) | 2013-09-22 | 2013-09-22 | TV set shell dedicated impact-resistant polystyrene material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772839A (en) * | 2014-01-24 | 2014-05-07 | 南通红石科技发展有限公司 | Polystyrene composite plastic and preparation method thereof |
| CN104672738A (en) * | 2015-01-20 | 2015-06-03 | 惠州市沃特新材料有限公司 | Flame-retardant HIPS (high impact polystyrene) composition and preparation method thereof |
| CN107603120A (en) * | 2017-09-06 | 2018-01-19 | 安徽锐光电子科技有限公司 | A kind of preparation method of mica condenser casing plastic |
| CN108690276A (en) * | 2017-04-11 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of polystyrene material and preparation method thereof |
| CN114591587A (en) * | 2022-02-25 | 2022-06-07 | 成都金发科技新材料有限公司 | Polystyrene composite material and preparation method thereof |
| CN115368686A (en) * | 2022-09-30 | 2022-11-22 | 金发科技股份有限公司 | Glass fiber reinforced polystyrene material and preparation method and application thereof |
| CN115368686B (en) * | 2022-09-30 | 2024-05-14 | 金发科技股份有限公司 | Glass fiber reinforced polystyrene material and preparation method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772839A (en) * | 2014-01-24 | 2014-05-07 | 南通红石科技发展有限公司 | Polystyrene composite plastic and preparation method thereof |
| CN103772839B (en) * | 2014-01-24 | 2016-01-20 | 南通红石科技发展有限公司 | A kind of polystyrene composite plastic and preparation method thereof |
| CN104672738A (en) * | 2015-01-20 | 2015-06-03 | 惠州市沃特新材料有限公司 | Flame-retardant HIPS (high impact polystyrene) composition and preparation method thereof |
| CN108690276A (en) * | 2017-04-11 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of polystyrene material and preparation method thereof |
| CN107603120A (en) * | 2017-09-06 | 2018-01-19 | 安徽锐光电子科技有限公司 | A kind of preparation method of mica condenser casing plastic |
| CN114591587A (en) * | 2022-02-25 | 2022-06-07 | 成都金发科技新材料有限公司 | Polystyrene composite material and preparation method thereof |
| CN114591587B (en) * | 2022-02-25 | 2023-09-05 | 成都金发科技新材料有限公司 | Polystyrene composite material and preparation method thereof |
| CN115368686A (en) * | 2022-09-30 | 2022-11-22 | 金发科技股份有限公司 | Glass fiber reinforced polystyrene material and preparation method and application thereof |
| CN115368686B (en) * | 2022-09-30 | 2024-05-14 | 金发科技股份有限公司 | Glass fiber reinforced polystyrene material and preparation method and application thereof |
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