CN104672738A - Flame-retardant HIPS (high impact polystyrene) composition and preparation method thereof - Google Patents
Flame-retardant HIPS (high impact polystyrene) composition and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a flame-retardant enhanced HIPS (high impact polystyrene) composition and a preparation method thereof. The flame-retardant HIPS composition comprises the following components in percentage by weight: 45%-85% of HIPS, 10%-20% of a flame-retardant, 3%-7% of a compatilizer, 0-5% of a flexibilizer, 0-5% of a coupling agent, 0-1.5% of an antioxidant and 0-25% of glass fiber. The preparation method of the flame-retardant HIPS composition comprises the following steps: weighing the components of the formula; carrying out dispersing treatment on the glass fiber and the flame retardant; and carrying out mixing and extruding treatment on kinds of raw materials. The flame-retardant HIPS composition has excellent flame retardant property, weather resistance, thermal properties and product dimension stability; the application range of the materials is expanded; the preparation method is simple in process, and low in demands on equipment; the conditions are easy to control; stable material properties of the flame-retardant HIPS composition are effectively ensured; the production cost is effectively reduced; and the flame-retardant HIPS composition is suitable for industrialized production.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of flame-retarding HIPS composition and method of making the same.
Background technology
Impact resistant polystyrene (HIPS) has easy processing, excellent combination property, is widely used in household electrical appliance, office equipment, the case members such as household utensils.Due to its price advantage, the consumption of HIPS also gets more and more.Along with the raising of social progress and service requirements, awareness of safety, the flame retardant properties of plastic prod, during injection moulding, the dimensional stability of product is more and more paid close attention to.
But HIPS oxygen index is about 19%, belong to inflammable plastics, its shrinking percentage is 0.4% ~ 0.7%, and easily produces post shrinkage in product put procedure, makes product size unstable, causes assembling product difficulty.Therefore, the flame retardant resistance and the dimensional stability that how to improve HIPS are the technical barriers being badly in need of overcoming.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, a kind of flame-retarding HIPS composition and method of making the same is provided, with the technical problem of the poor fire and size instability that solve existing HIPS.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of flame-retarding HIPS composition, comprises the component of following weight percent:
And a kind of preparation method of flame-retarding HIPS composition, comprises the following steps:
Each raw material is taken respectively according to the component of the invention described above flame-retarding HIPS composition;
The HIPS taken, compatilizer, toughner, coupling agent, oxidation inhibitor are fed from main charging opening, by described fire retardant and described glass fibre respectively from two sides material mouths feedings, carry out mixing, extrude process.
Flame-retarding HIPS composition of the present invention adopts fire retardant, compatilizer and other auxiliary agents to carry out modification to HIPS major ingredient, makes flame-retarding HIPS composition of the present invention have excellent flame retardant properties, weathering resistance.When flame-retarding HIPS composition of the present invention contains glass fibre, this glass fibre and fire retardant and other promoter effects, flame-retarding HIPS composition of the present invention is made to have excellent flame retardant properties, on the basis of weathering resistance, also there is excellent thermal characteristics, improve the use temperature of HIPS material, thus improve the post shrinkage performance of flame-retarding HIPS composition of the present invention, improve the dimensional stability of flame-retarding HIPS composition, expand the use range of material.
The preparation method of above-mentioned flame-retarding HIPS composition only need according to composition and ratio each raw material carried out mixing, extrude, its preparation method technique is simple, condition is easily controlled, low for equipment requirements, while effectively ensureing the stable performance of flame-retarding HIPS composition material, effectively reduce its production cost, be suitable for suitability for industrialized production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the process flow diagram of embodiment of the present invention flame-retarding HIPS preparation method of composition.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of flame-retarding HIPS composition with excellent fire-retardancy and dimensional stability.This flame-retarding HIPS composition comprises the component of following weight percent:
Particularly, above-mentioned HIPS is matrix composition.In order to improve flame retardant properties and the dimensional stability of embodiment of the present invention flame-retarding HIPS composition, in one embodiment, this HIPS selects the HIPS of rubber content 5wt% ~ 15wt%.
In a particular embodiment, the content of this HIPS can be the weight percentage such as 45%, 50%, 53.4%, 58.4%, 59.4%, 64.4%, 73%, 75%, 77%, 80%, 85%, 87%.
Above-mentioned fire retardant carries out modification to matrix component HIPS, overcomes the inflammable defect of HIPS, thus gives the flame retardant properties of flame-retarding HIPS composition excellence of the present invention.Therefore, in one embodiment, at least one in halogen containing flame-retardant FR245, tetrabromo-bisphenol, antimonous oxide selected by this fire retardant.Select this preferred fire retardant effectively can overcome the inflammable defect of HIPS, improve the flame retardant properties of flame-retarding HIPS composition of the present invention, weathering resistance.
Find in contriver's R&D process, though the above-mentioned preferred fire retardant energy of independent employing effectively can overcome the inflammable defect of HIPS, but easily reduce toughness and the thermotolerance of HIPS itself, therefore, in order to effectively improve flame-retarding HIPS composition flame retardant properties, effectively can ensure again toughness and the thermotolerance of flame-retarding HIPS composition, therefore, in one embodiment, the mixture of halogen containing flame-retardant FR245 and antimonous oxide selected by above-mentioned fire retardant, in a further embodiment, this halogen containing flame-retardant FR245 and antimonous oxide weight ratio are (14-15): 4, in one embodiment, this halogen containing flame-retardant FR245 and antimonous oxide weight ratio are 15:4.
In another embodiment, the mixture with tetrabromobisphenol and antimonous oxide selected by above-mentioned fire retardant, in a further embodiment, this tetrabromobisphenol and antimonous oxide weight ratio are (15-16): 4, in one embodiment, this this tetrabromobisphenol and antimonous oxide weight ratio are 15:4 or 16:4.
In a particular embodiment, the content of this fire retardant can be the weight percentage such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%.
Cause to prevent fire retardant further and reduce the toughness of HIPS itself and the defect of thermotolerance, thus give the performances such as the flame retardant resistance of flame-retarding HIPS composition excellence of the present invention and thermotolerance, weathering resistance, product size are stable, while adding above-mentioned fire retardant, add the glass fibre of above-mentioned content.Glass fibre add the thermal characteristics that significantly can improve HIPS, improve the use temperature of HIPS, improve the post shrinkage performance of HIPS, that is to say the synergistic function by glass fibre and above-mentioned fire retardant, such that flame-retarding HIPS composition has excellent flame retardant resistance, thermotolerance, weathering resistance, product size are stablized.
In order to the thermotolerance of further embodiment of the present invention flame-retarding HIPS composition and product size are stablized, in one embodiment, alkali-free short glass fiber selected by this glass fibre, chopped length 3.0mm ~ 4.5mm, filament diameter 12mm ~ 14mm, water ratio≤0.05%..
In a particular embodiment, the content of this glass fibre can be the weight percentage such as 10%, 11%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%.
In one embodiment, above-mentioned compatilizer selects one or both mixture of maleic anhydride graft HIPS multipolymer, Zelan 338.This compatilizer selected selects for above-mentioned fire retardant and HIPS matrix component or fire retardant, glass fibre and HIPS matrix component, this preferred compatilizer effectively can strengthen fire retardant and HIPS or fire retardant, consistency between glass fibre and HIPS, thus realizes that embodiment of the present invention flame-retarding HIPS composition has excellent flame retardant resistance, thermotolerance, weathering resistance, product size are stablized.
In a particular embodiment, the content of this compatilizer can be the weight percentage such as 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%.
The existence of above-mentioned toughner can improve the deficiency causing HIPS toughness to reduce by fire retardant.Therefore, in one embodiment, SBS, SEBS one or both mixture elastomeric selected by this toughner.
In a particular embodiment, the content of this toughner can be the weight percentage such as 0.5%, 1%, 1.5%, 2%, 3%, 3.5%, 4%, 4.5%, 5%.
In one embodiment, silicane selected by above-mentioned coupling agent, one or more the coupling agent in titanate ester, aluminate.
In a particular embodiment, the content of this coupling agent can be the weight percentage such as 0,0.2%, 0.5%, 1%, 3%, 3.5%, 4%, 4.5%, 5%.
In one embodiment, the mixture of one or more in antioxidant 1010, irgasfos 168, oxidation inhibitor 626 selected by above-mentioned oxidation inhibitor.In a particular embodiment, the content of this oxidation inhibitor can be the weight percentage such as 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%.Deng weight percentage.
Therefore, above-mentioned flame-retarding HIPS composition adopts fire retardant or fire retardant, glass fibre and compatilizer and other auxiliary agents to carry out modification to HIPS major ingredient, flame-retarding HIPS composition of the present invention is made to have excellent flame retardant properties, weathering resistance, thermal characteristics, product size stability, expands the use range of material.
Correspondingly, the embodiment of the present invention additionally provides a kind of preparation method of above-mentioned flame-retarding HIPS composition, and its technical process as shown in Figure 1.The method comprises the steps:
S01. recipe ingredient is taken: take each raw material respectively according to the component of above-mentioned flame-retarding HIPS composition;
S02. each material is carried out mixing, extrude process: the HIPS taken, compatilizer, toughner, coupling agent, oxidation inhibitor are fed from main charging opening, by described fire retardant and described glass fibre respectively from two sides material mouths feedings, carry out mixing, extrude process.
Particularly, each component preferred content in the flame-retarding HIPS composition in above-mentioned steps S01 and kind as described above, in order to save length, do not repeat them here.
In one embodiment, in the material taken, the glass fibre of surface after such as coupling agent surface treatment selected by glass fibre.
In above-mentioned steps S02, in order to improve fire retardant or fire retardant and glass fibre dispersity in material, adopting the mode of side feeding to add fire retardant or fire retardant and glass fibre and carrying out batch mixing with unclassified stores, melt extrude process.When embodiment of the present invention flame-retarding HIPS composition contains fire retardant and glass fibre, be fire retardant and glass fibre are separated feed at two side spouts.In order to improve glass fibre, fire retardant dispersion effect and the performance such as flame retardant resistance and dimensional stabilizing of embodiment of the present invention flame-retarding HIPS composition is provided, in one embodiment, select to have and strengthen decentralized screw combinations, and described extrusion temperature is back segment: 170-190 DEG C, stage casing: 180-190 DEG C, leading portion: 180-190 DEG C, head: 190-200 DEG C, screw speed: 300-500r/min.The embodiment of the present invention flame-retarding HIPS composition properties of preparation is stablized, and has excellent flame retardant resistance, thermotolerance, weathering resistance, product size stablize.
The preparation method of above-mentioned flame-retarding HIPS composition only needs first that fire retardant carries out dispersion treatment by fire retardant or glass fibre, then in the composition of flame-retarding HIPS composition of the present invention and ratio each raw material carried out mixing, extrude, its preparation method technique is simple, condition is easily controlled, feature low for equipment requirements, while effectively ensureing the stable performance of flame-retarding HIPS composition material, effectively reduce its production cost, be suitable for suitability for industrialized production.
Now for the component of flame-retarding HIPS composition and preparation method, the present invention is further elaborated.
Embodiment 1-6
6 kinds of flame-retarding HIPS composition and method of making the sames are provided.Wherein, these 6 kinds of flame-retarding HIPS compositions are respectively containing, for example the component in table 1.Its respective preparation method is as described in flame-retarding HIPS preparation method of composition above.
Table 1
Comparison example 1
There is provided as follows containing, for example the HIPS composition of the component in following table 2:
Table 2
Performance test:
Flame-retarding HIPS composition above-described embodiment 1 to embodiment 6 prepared and the HIPS composition material prepared by comparison example carry out the test of correlated performance respectively by the following method:
Test bars is injection molded into, injecting condition: injection temperature: 180-200, injection pressure: 30-50MPa, injection moulding speed: 30-60mm/s according to following injecting condition.
Each example physical performance test is all according to ASTM standard, and concrete examination criteria is as follows:
Dependence test result is as described in Table 3:
Table 3
As shown in Table 3, embodiment of the present invention flame-retarding HIPS composition has excellent flame retardant properties, weathering resistance, thermal characteristics, product size stability, expands the use range of material.Wherein, fire retardant reaches V0, and its heat resisting temperature is up to more than 82 DEG C, toughness etc., and mechanical property is excellent, and shrinking percentage is the highest only has 0.35%, and therefore, its product size is stablized.
Be injection molded into by above-mentioned injecting condition after test bars places 15 days and again test shrinking percentage performance and flame retardant properties, test result is as shown in table 4.
Table 4
As shown in Table 4, embodiment of the present invention flame-retarding HIPS composition properties is stablized, and still keeps excellent flame retardant properties after 15 days, product size stability.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a flame-retarding HIPS composition, comprises the component of following weight percent:
2. flame-retarding HIPS composition according to claim 1, is characterized in that: in described flame-retarding HIPS composition, and the weight percent of described toughner is 1% ~ 3%; And/or
The weight percent of described coupling agent is 0.2% ~ 0.5%; And/or
The weight percent of described oxidation inhibitor is 0.2% ~ 0.5%.
3. flame-retarding HIPS composition according to claim 1 and 2, is characterized in that: at least one in halogen containing flame-retardant FR245, tetrabromo-bisphenol, antimonous oxide selected by described fire retardant.
4. flame-retarding HIPS composition according to claim 1 and 2, it is characterized in that: the mixture of halogen containing flame-retardant FR245 and antimonous oxide selected by described fire retardant, and halogen containing flame-retardant FR245 and antimonous oxide weight ratio are (14-15): 4.
5. flame-retarding HIPS composition according to claim 1 and 2, is characterized in that: the mixture of tetrabromobisphenol and antimonous oxide selected by described fire retardant, and tetrabromobisphenol and antimonous oxide weight ratio are (15-16): 4.
6. flame-retarding HIPS composition according to claim 1 and 2, is characterized in that: alkali-free short glass fiber selected by described glass fibre, chopped length 3.0mm ~ 4.5mm, filament diameter 12mm ~ 14mm, water ratio≤0.05%.
7. flame-retarding HIPS composition according to claim 1 and 2, is characterized in that: described compatilizer selects one or both mixture of maleic anhydride graft HIPS multipolymer, Zelan 338.
8. flame-retarding HIPS composition according to claim 1 and 2, is characterized in that: SBS, SEBS one or both mixture elastomeric selected by described toughner; And/or
Silicane selected by described coupling agent, one or more the coupling agent in titanate ester, aluminate; And/or
Described HIPS selects the HIPS of rubber content 5wt% ~ 15wt%.
9. a preparation method for flame-retarding HIPS composition, comprises the following steps:
Each raw material is taken respectively according to the component of the flame-retarding HIPS composition described in any one of claim 1 ~ 8;
The HIPS taken, compatilizer, toughner, coupling agent, oxidation inhibitor are fed from main charging opening, by described fire retardant, glass fibre from respectively from the material mouths feeding of two sides, carry out mixing, extrude process.
10. the preparation method of flame-retarding HIPS composition according to claim 9, it is characterized in that: in the step of dispersion treatment, select to have and strengthen decentralized screw combinations, and the temperature extruded is back segment: 170-190 DEG C, stage casing: 180-190 DEG C, leading portion: 180-190 DEG C, head: 190-200 DEG C, screw speed: 300-500r/min.
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Cited By (4)
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| CN105295281A (en) * | 2015-12-04 | 2016-02-03 | 青岛海信电器股份有限公司 | Shell material of electronic equipment and preparation method thereof |
| CN105400095A (en) * | 2015-12-30 | 2016-03-16 | 广东国立科技股份有限公司 | High-strength and high-fluidity carbon fiber reinforced flame-retardant HIPS material and preparation method thereof |
| CN106380711A (en) * | 2016-08-26 | 2017-02-08 | 青岛海尔新材料研发有限公司 | Glass fiber-reinforced flame-retardant polystyrene resin composition and preparation method thereof |
| CN113444335A (en) * | 2021-08-09 | 2021-09-28 | 东莞金熙特高分子材料实业有限公司 | Flame-retardant HIPS material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105295281A (en) * | 2015-12-04 | 2016-02-03 | 青岛海信电器股份有限公司 | Shell material of electronic equipment and preparation method thereof |
| CN105400095A (en) * | 2015-12-30 | 2016-03-16 | 广东国立科技股份有限公司 | High-strength and high-fluidity carbon fiber reinforced flame-retardant HIPS material and preparation method thereof |
| CN105400095B (en) * | 2015-12-30 | 2018-08-31 | 广东国立科技股份有限公司 | A kind of high intensity height flowing carbon fiber enhancing flame-retarding HIPS material and preparation method thereof |
| CN106380711A (en) * | 2016-08-26 | 2017-02-08 | 青岛海尔新材料研发有限公司 | Glass fiber-reinforced flame-retardant polystyrene resin composition and preparation method thereof |
| CN106380711B (en) * | 2016-08-26 | 2019-03-26 | 青岛海尔新材料研发有限公司 | A kind of fiberglass reinforced fire retardant polystyrene resin composite and preparation method thereof |
| CN113444335A (en) * | 2021-08-09 | 2021-09-28 | 东莞金熙特高分子材料实业有限公司 | Flame-retardant HIPS material |
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Application publication date: 20150603 |