CN101570614A - Polystyrene raw material for producing carrier band and production technology thereof - Google Patents
Polystyrene raw material for producing carrier band and production technology thereof Download PDFInfo
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- CN101570614A CN101570614A CNA2008100368022A CN200810036802A CN101570614A CN 101570614 A CN101570614 A CN 101570614A CN A2008100368022 A CNA2008100368022 A CN A2008100368022A CN 200810036802 A CN200810036802 A CN 200810036802A CN 101570614 A CN101570614 A CN 101570614A
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- polystyrene
- polystyrene raw
- carrier band
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Abstract
The invention relates to a raw material for producing carrier bands and is characterized in that a polystyrene raw material comprises the following components in percent by weight: 10 to 50 of polystyrene, 40 to 80 of polycarbonate, 3 to 9 of compatilizer, 0.03 to 0.07 of calcium stearate, 0.1 to 0.5 of antioxidant and 2 to 8 of antistatic agent, and the sum of the weight percent of the components of the polystyrene raw material equals to 100 percent. Through the improvement of the formulation, the toughening modification of the polystyrene raw material can be realized, and the polystyrene raw material has certain antistatic performance; meanwhile, the refractive indexes of PC and PS are more approximate, thus the prepared polystyrene raw material can keep better transparency.
Description
Technical field:
The present invention relates to the technical field of polystyrene raw material, specifically a kind of transparent polystyrene raw material and production technique thereof that is used to produce carrier band.
Background technology:
At present carrier band is mainly used in the encapsulation of IC and relatively large passive device (as double-layer ceramic electric capacity, inductance etc.).The material that is used to produce carrier band mainly is PC and PS; PC is the abbreviation of polycarbonate, is called for short the PC engineering plastics.PC is a kind of armorphous thermoplastic resin of high comprehensive performance, has excellent electrical insulating property, extensibility, dimensional stability and chemical resistance, higher intensity, thermotolerance and winter hardiness; Also have from put out, advantage such as fire-retardant, nontoxic, pigmentable, shortcoming be with metallographic phase than hardness deficiency, this causes its outward appearance to be easier to scratch, but its intensity and toughness are fine, no matter be weight or general beating, as long as you attempt to pound it with stone, it is just enough long-lived.PC's is mobile relatively poor, is fit to homemade sheet extruder production at present, so the PC sheet material can only be used expensive import equipment production, price is expensive especially.PS is the abbreviation of polystyrene, and the PS of most of commercial usefulness is transparent, amorphous material.PS has extraordinary geometrical stability, thermostability, optical transmittance characteristic, electrical insulation characteristics and very small moisture absorption tendency.It can resist the mineral acid of water, dilution, but can be corroded by the strong oxidizing acid such as the vitriol oil, and can be in some organic solvents dilatational strain.Typical shrinking percentage is between 0.4 ~ 0.7%.But fragility is bigger, and stress cracking takes place easily, also is not suitable for directly being used for processing the carrier band product.
Present domestic transparent antistatic PS carrier band raw material is in blank, and major cause is the domestic transparent PS plastics of modification that do not have the carrier band special use, although common PS plastics are transparent, toughness is too poor.
The transparent plastics raw material of external preparation carrier band product mainly is transparent alloy plastic of PC/PS and transparent ABS plastics two big classes, and the Taiwan associated companies has also been developed the transparent alloy plastic of PC/PS.Other transparent plastics also comprises the plastics of esters of acrylic acid, but these class plastics make sheet material after intensity do not reach requirement.But generally speaking, all lack high performance carrier band starting material both at home and abroad.Can't the perfect transparent antistatic PS carrier band of manufacturing property.
Summary of the invention:
The object of the present invention is to provide a kind of improved polystyrene raw material and production technique thereof that is used to produce carrier band, with the toughening modifying of realizing polystyrene raw material and make it have certain antistatic property.
To achieve these goals, technical scheme of the present invention is: a kind of polystyrene raw material that is used to produce carrier band, it is characterized in that: the formulation weight per-cent of described polystyrene raw material is: polystyrene 10-50%, polycarbonate 40-80%, compatilizer 3-9%, calcium stearate 0.03-0.07%, oxidation inhibitor 0.1-0.5% and static inhibitor 2-8%, the weight percent sum of above-mentioned each material composition is 100%.
A kind of production technique of polystyrene raw material, it is characterized in that: described production technique comprises the steps: a, be that the polycarbonate of polystyrene, the 40-80% of 10-50%, the compatilizer of 3-9%, the calcium stearate of 0.03-0.07%, the oxidation inhibitor of 0.1-0.5% and the static inhibitor of 2-8% mix with weight percent, put into homogenizer, stir 2-3min, make the mixture uniform mixing; B, said mixture is put into the blend forcing machine carry out granulation.
The present invention prepares the transparent PS alloy material technology of toughening modifying by selecting the toughness reinforcing component of refractive index coupling alloy for use, selects appropriate compatilizer to add in polyester/polystyrene alloy, further improves this alloy material transparency; In prescription, add static inhibitor again, guarantee that it is increasing alloy material antistatic property and properties of transparency with suitable molecular weight and molecular polarity.Here, static inhibitor has a suitable molecular weight, so just can not occur being similar to micromolecular transport phenomena, and both shorten the antistatic life-span, influences the shock strength of alloy material again; Selection has suitable molecule polar static inhibitor, so could guarantee the properties of transparency of alloy material.
Embodiment:
The invention will be further described below in conjunction with embodiment.
A kind of polystyrene raw material that is used to produce carrier band of the present invention, its difference with the prior art is: the formulation weight per-cent of described polystyrene carrier band is: polystyrene 10-50%, polycarbonate 40-80%, compatilizer 3-9%, calcium stearate 0.03-0.07%, oxidation inhibitor 0.1-0.5% and static inhibitor 2-8%, the weight percent sum of above-mentioned each material composition is 100%.
A kind of production technique of polystyrene raw material, its difference with the prior art is: described production technique comprises the steps: a, be that the polycarbonate of polystyrene, the 40-80% of 10-50%, the compatilizer (EBS, MBS) of 3-9%, the calcium stearate (CaSt) of 0.03-0.07%, the oxidation inhibitor of 0.1-0.5% and the static inhibitor of 2-8% mix with weight percent, put into homogenizer, stir 2-3min, temperature is controlled at 60 ℃, make the mixture uniform mixing, the mass percent sum of each composition is 100% in a step; B, said mixture is put into the blend forcing machine carry out granulation, the processing temperature of blend forcing machine is 210-250 ℃, and the polystyrene raw material particle length that obtains after the granulation is 2-5mm, and diameter is 1-3mm.These polystyrene raw materials just can be made test batten and preparation carrier band sample for injector.
Compatilizer can be ethylene-butadiene-styrene multipolymer (EBS) or Methacrylate-butadiene-styrene (MBS).Oxidation inhibitor is β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester or β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester; Static inhibitor adopts polyvinyl resin cation (R.C.) or polyacrylate resin cation (R.C.).
Embodiment 1
With weight percent is 26% polystyrene, 62% polycarbonate, 0.1% ethylene-butadiene-styrene multipolymer (EBS) and 6.5% Methacrylate-butadiene-styrene (MBS), 0.04% calcium stearate (CaSt), 0.36% β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester and 5% polyvinyl resin cation (R.C.) mix, put into homogenizer, stir 2-3min, make the mixture uniform mixing; B, said mixture is put into the blend forcing machine carrying out granulation, is example with the blend forcing machine of Nanjing Rhea TSE-65B, the about 180A of feeding electric current during work, the about 400RPM of screw speed, 210 ℃ of feed zone temperature, 250 ℃ of transportation section temperature, shear 230 ℃ of section temperature, 240 ℃ of head temperatures.The particle of producing is transparent, is about 3mm, and diameter is the PS alloy particle material of 2mm; Above-mentioned particle is put into homemade forcing machine, can produce the carrier band sheet material, the processing temperature of forcing machine is 230-240 ℃.
Made polystyrene batten, the Performance Detection the key technical indexes is as follows:
| Melting index: | 7.16 260℃/2.16kg |
| Tensile strength: | 206.1kg/cm 2 |
| The socle girder impact property: | 25.89kJ/m 2 |
| Sheet resistance value: | 1.5×10 11Ω |
| Apparent: | Transparent |
Embodiment 2
With weight percent is 22% polystyrene, 65% polycarbonate, 0.17% ethylene-butadiene-styrene multipolymer (EBS) and 5.3% Methacrylate-butadiene-styrene (MBS), 0.03% calcium stearate (CaSt), 0.5% β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester and 7% polyacrylate resin cation (R.C.) mix, put into homogenizer, stir 2-3min, make the mixture uniform mixing; B, said mixture is put into the blend forcing machine carrying out granulation, is example with the blend forcing machine of Nanjing Rhea TSE-65B, the about 180A of feeding electric current, the about 400RPM of screw speed, 210 ℃ of feed zone temperature, 250 ℃ of transportation section temperature, shear 230 ℃ of section temperature, 240 ℃ of head temperatures.The particle of producing is transparent, and long is 3mm, and diameter is the PS alloy particle material of 2mm; Again above-mentioned particle is put into homemade forcing machine, can produce the carrier band sheet material, the processing temperature of forcing machine is 230-240 ℃.
Made polystyrene batten, the Performance Detection the key technical indexes is as follows:
| Melting index: | 5.45 260℃/2.16kg |
| Tensile strength: | 220.5kg/cm 2 |
| The socle girder impact property: | 27.16kJ/m 2 |
| Sheet resistance value: | 1.1×10 11Ω |
| Apparent: | Transparent |
As seen,, both can keep the transparency of raw material, and add and make behind compatilizer, the static inhibitor toughness, antistatic property and the processing characteristics of the polystyrene raw material made by alloy material improve greatly by making the PC/PS alloy with PC and PS.
Claims (8)
1, a kind of polystyrene raw material that is used to produce carrier band, it is characterized in that: the formulation weight per-cent of described polystyrene carrier band is: polystyrene 10-50%, polycarbonate 40-80%, compatilizer 3-9%, calcium stearate 0.03-0.07%, oxidation inhibitor 0.1-0.5% and static inhibitor 2-8%, the weight percent sum of above-mentioned each material composition is 100%.
2, a kind of polystyrene raw material that is used to produce carrier band according to claim 1, it is characterized in that: compatilizer is ethylene-butadiene-styrene multipolymer or Methacrylate-butadiene-styrene.
3, a kind of polystyrene raw material that is used to produce carrier band according to claim 1 is characterized in that: oxidation inhibitor is β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester or β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester.
4, a kind of polystyrene raw material that is used to produce carrier band according to claim 1 is characterized in that: static inhibitor adopts polyvinyl resin cation (R.C.) or polyacrylate resin cation (R.C.).
5, a kind of production technique of polystyrene raw material, it is characterized in that: described production technique comprises the steps: a, be the polystyrene of 10-50%, the polycarbonate of 40-80%, the compatilizer of 3-9%, the calcium stearate of 0.03-0.07%, the oxidation inhibitor of 0.1-0.5% and the static inhibitor of 2-8% with weight percent, put into homogenizer, stir 2-3min, temperature remains on 60 ℃ and make the mixture uniform mixing; B, said mixture is put into the blend forcing machine carry out granulation.
6, the production technique of a kind of polystyrene raw material according to claim 5, it is characterized in that: the mass percent sum of each composition is 100% in a step, and compatilizer is ethylene-butadiene-styrene multipolymer or Methacrylate-butadiene-styrene.
7, the production technique of a kind of polystyrene raw material according to claim 5, it is characterized in that: in a step, oxidation inhibitor is β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester oxidation inhibitor β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester; Static inhibitor adopts polyvinyl resin cation (R.C.) or polyacrylate resin cation (R.C.).
8, the production technique of a kind of polystyrene raw material according to claim 5 is characterized in that: in the b step, the processing temperature of blend forcing machine is 210-250 ℃, and the polystyrene raw material particle length that obtains after the granulation is 2-5mm, and diameter is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100368022A CN101570614A (en) | 2008-04-29 | 2008-04-29 | Polystyrene raw material for producing carrier band and production technology thereof |
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| CNA2008100368022A CN101570614A (en) | 2008-04-29 | 2008-04-29 | Polystyrene raw material for producing carrier band and production technology thereof |
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| CN101570614A true CN101570614A (en) | 2009-11-04 |
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| CNA2008100368022A Pending CN101570614A (en) | 2008-04-29 | 2008-04-29 | Polystyrene raw material for producing carrier band and production technology thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772836A (en) * | 2013-12-26 | 2014-05-07 | 苏州市涵信塑业有限公司 | Polystyrene and polycarbonate compound modified plastic |
| CN112063144A (en) * | 2020-08-17 | 2020-12-11 | 咖法科技(上海)有限公司 | Tea leaf residue composite polycarbonate and preparation method thereof |
-
2008
- 2008-04-29 CN CNA2008100368022A patent/CN101570614A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772836A (en) * | 2013-12-26 | 2014-05-07 | 苏州市涵信塑业有限公司 | Polystyrene and polycarbonate compound modified plastic |
| CN103772836B (en) * | 2013-12-26 | 2016-03-02 | 苏州市相城区明达复合材料厂 | A kind of polystyrene and the composite modified plastics of polycarbonate |
| CN112063144A (en) * | 2020-08-17 | 2020-12-11 | 咖法科技(上海)有限公司 | Tea leaf residue composite polycarbonate and preparation method thereof |
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Open date: 20091104 |