CN115975305B - Transparent polystyrene composition and preparation method thereof - Google Patents
Transparent polystyrene composition and preparation method thereof Download PDFInfo
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- CN115975305B CN115975305B CN202211725614.7A CN202211725614A CN115975305B CN 115975305 B CN115975305 B CN 115975305B CN 202211725614 A CN202211725614 A CN 202211725614A CN 115975305 B CN115975305 B CN 115975305B
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- 239000000203 mixture Substances 0.000 title claims abstract description 34
- 239000004793 Polystyrene Substances 0.000 title claims abstract description 26
- 229920002223 polystyrene Polymers 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 229920013636 polyphenyl ether polymer Polymers 0.000 claims abstract description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000012745 toughening agent Substances 0.000 claims description 14
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005990 polystyrene resin Polymers 0.000 claims description 6
- 239000001993 wax Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000012170 montan wax Substances 0.000 claims description 4
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 150000003568 thioethers Chemical class 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000002270 dispersing agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000004383 yellowing Methods 0.000 abstract description 2
- 229920001400 block copolymer Polymers 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 12
- 229920001955 polyphenylene ether Polymers 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000005286 illumination Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- VSVVZZQIUJXYQA-UHFFFAOYSA-N [3-(3-dodecylsulfanylpropanoyloxy)-2,2-bis(3-dodecylsulfanylpropanoyloxymethyl)propyl] 3-dodecylsulfanylpropanoate Chemical compound CCCCCCCCCCCCSCCC(=O)OCC(COC(=O)CCSCCCCCCCCCCCC)(COC(=O)CCSCCCCCCCCCCCC)COC(=O)CCSCCCCCCCCCCCC VSVVZZQIUJXYQA-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920006352 transparent thermoplastic Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a transparent polystyrene composition and a preparation method thereof. The invention utilizes the high rigidity of the polyphenyl ether molecular chain and the flexibility of the molecular chain of the flexibilizer styrene-butadiene block copolymer, thereby improving the heat resistance and the impact resistance of the general polystyrene; the refractive index matching is realized by regulating and controlling the butadiene proportion of the block copolymer, so that high light transmittance and low haze are obtained; meanwhile, the synergistic lubrication effect of the specific lubricant is added, so that the shearing effect in the processing process is further reduced; the material base color yellowing in the processing process is reduced while the component dispersion is improved.
Description
Technical Field
The invention belongs to the field of modified plastics, and particularly relates to a transparent polystyrene composition and a preparation method thereof.
Background
Polystyrene is a colorless transparent thermoplastic plastic and is widely applied to light-transmitting panels, covers and the like in the fields of household appliances, illumination and the like. Polystyrene is an amorphous resin with a low heat distortion temperature, typically no more than 80 degrees celsius, and therefore cannot be used in some products with high heat resistance requirements. The method of improving heat resistance generally employs addition of a heat resistant agent having a high glass transition temperature or alloying with a resin having a high heat resistance, and it is difficult for a transparent resin such as polystyrene to maintain good appearance and transparency while improving heat resistance. In addition, polystyrene has the defect of poor impact resistance, and improving the toughness is an important subject for expanding the application.
Disclosure of Invention
The invention aims to solve the technical problem of providing a transparent polystyrene composition and a preparation method thereof, wherein the composition combines heat resistance and good appearance, has good impact resistance and excellent comprehensive performance.
The invention provides a transparent polystyrene composition, which comprises the following components in parts by weight:
wherein the toughening agent is a styrene-butadiene block copolymer, and the mass percentage of butadiene is 15-30%; the lubricant is at least one of polyester wax, synthetic polyester wax and montan wax.
The polystyrene resin has a melt flow rate of 2-10g/10min under the conditions of 200 ℃ and 5kg (test standard: ISO 1133-1:2011).
The intrinsic viscosity of the polyphenyl ether resin is 30-40cm 3/g, and the polyphenyl ether resin is measured by an Ubbelohde viscometer after being dissolved in chloroform at 25 ℃.
The transparent polystyrene composition further comprises 0.2 to 5 parts by weight of an auxiliary agent. The auxiliary agent is at least one of an antioxidant, a weather-proof agent and a colorant.
The antioxidant is at least one of hindered phenol antioxidants, phosphite antioxidants and thioether antioxidants.
The weather-proof agent is at least one of a benzophenone ultraviolet light absorber, a benzotriazole ultraviolet light absorber and a hindered amine weather-proof agent.
The colorant is one of pigment colorant, dye colorant, light diffusing agent and other colorant with special aesthetic effect.
Preferably, the composition comprises the following components in parts by weight:
the invention also provides a preparation method of the transparent polystyrene composition, which comprises the following steps:
Adding the components into a mixer to mix uniformly to obtain a uniformly mixed material; and then adding the mixture into a main feeding port of a double-screw extruder, wherein the temperature of each section of the double-screw extruder is 160-250 ℃, the screw rotating speed is 200-800 rpm, and obtaining the transparent polystyrene composition after melting, extruding and granulating in the extruder.
The invention also provides application of the transparent polystyrene composition in household appliances, automobiles and illumination, in particular application of the transparent polystyrene composition in household appliance panels, automobile windows and illumination lampshades, wherein the transparent polystyrene composition has requirements on transparency, heat resistance and impact resistance.
Advantageous effects
The toughening agent with specific butadiene content is adopted as the phase modifier, so that the compatibility of polystyrene and polyphenyl ether is improved when the toughness of the composition is improved, and the high transparency and low haze of the composition are realized; meanwhile, the special lubricant is adopted, so that the special lubricant can be well cooperated with the toughening agent, the lubricating effect among components is improved, and the yellowing of the composition in the processing process is reduced.
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The reagents, methods and apparatus employed in the present invention, unless otherwise specified, are all conventional in the art.
The following examples and comparative examples were prepared from the following raw materials:
polystyrene resin 1 (PS 1): the melt flow rate was 2g/10min (200 ℃,5 kg), GPPS 351, shanghai Seidae;
polystyrene resin 2 (PS 2): melt flow rate 10g/10min (200 ℃,5 kg), GPPS 123, shanghai Seidae;
polyphenylene ether resin 1 (PPE 1): the intrinsic viscosity is 35-37cm 3/g, LXR035, blue star chemical industry;
Polyphenylene ether resin 2 (PPE 2): the intrinsic viscosity is 43-47cm 3/g, LXR045, blue star chemical industry;
Toughening agent 1 (T1): styrene-butadiene block copolymer with 25% butadiene content, KR03, benzene collar;
toughening agent 2 (T2) is a styrene-butadiene block copolymer with butadiene content of 30%, KR38 and benzene collar;
toughening agent 3 (T3): styrene-butadiene block copolymer with butadiene content of 15%,800S, with rising of the formation;
toughening agent 4 (T4): styrene-butadiene block copolymer with 45% butadiene content, T-439, xuecheng.
Lubricant 1 (L1): synthetic polyester wax, 691, euroceras;
Lubricant 2 (L2): montan wax, luwax E, basf;
lubricant 3 (L3): polyethylene wax, 617A, ganivill;
lubricant 4 (L4): dipentaerythritol stearate, GLYCOLUBE-P, U.S. Longsha;
An antioxidant: compounding (weight ratio 1:1) of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] and pentaerythritol tetrakis (3-laurylthiopropionate), commercially available;
Weather-resistant agent: 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, commercially available.
The same species were used in the above commercial component parallel experiments.
The composite materials of each example and comparative example were prepared by the following procedure:
The components are fully and uniformly mixed by a high-speed mixer according to the weight ratio, and are added into a main feeding port of a double-screw extruder, the temperatures of 1-10 areas of the double-screw extruder are 160, 250, 240, 230, 250 ℃ and the screw rotating speed is 400 revolutions per minute, and the transparent polystyrene composition is obtained after the raw materials are melted, extruded and granulated in the extruder.
Examples and comparative examples were subjected to the following test methods or test criteria:
(1) Light transmittance and haze were measured according to ASTM D1003-2013 (thickness 2.0 mm);
(2) The notched impact strength of the cantilever beam is tested according to the standard ISO 180-2000 method;
(3) The heat distortion temperature was tested according to the standard ISO-75-2-2013 method (load 1.8 MPa);
(4) The yellow index was tested according to the standard HG T3862-2006 method.
Table 1 example and comparative formulation
Table 2 test results for examples and comparative examples
The compositions of examples 1-14 have light transmittance up to 81% -87%, yellow index up to 1.5-6.5, good heat resistance and mechanical properties, and excellent comprehensive properties.
Examples 1-4 show that the heat resistance temperature increases first and then decreases slightly with increasing amount of PPE, demonstrating that the range of the PPE to PS heat resistance increase is limited; the light transmittance decreases and the haze increases, and the yellow index increases suddenly when the PPE reaches 40 parts.
In example 1 and comparative examples 1 and 2, when the ratio of PS and the toughening agent is too large, transparency is deteriorated, the heat distortion temperature is lowered due to excessive toughening agent (comparative example 1), and the yellow index is remarkably raised due to insufficient toughening agent (comparative example 2).
Examples 8, 9, 10 and comparative example 3, when the butadiene content of the toughening agent exceeds 30%, the transparency is significantly reduced and the yellow index of the composition is increased.
Examples 10, 11 and comparative examples 4-6, the use of synthetic polyester wax and montan wax can effectively control the transparency and base color of the material, and improper lubricants (comparative examples 4, 5) or removal of lubricants (comparative example 6) can result in a composition with poor transparency or an increase in yellowness index.
Claims (9)
1. A transparent polystyrene composition characterized by: the coating comprises the following components in parts by weight:
30-60 parts of polystyrene resin;
10-40 parts of polyphenyl ether resin;
30-60 parts of toughening agent;
0.1-1 part of lubricant;
Wherein the toughening agent is a styrene-butadiene block copolymer, and the mass percentage of butadiene is 15-30%; the lubricant is at least one of polyester wax and montan wax.
2. The composition of claim 1, wherein: the melt flow rate of the polystyrene resin is 2-10g/10min under the conditions of 200 ℃ and 5 kg.
3. The composition of claim 1, wherein: the intrinsic viscosity of the polyphenyl ether resin is 30-40 cm 3/g.
4. The composition of claim 1, wherein: and 0.2-5 parts by weight of an auxiliary agent.
5. The composition of claim 4, wherein: the auxiliary agent is at least one of an antioxidant, a weather-proof agent and a colorant.
6. The composition of claim 5, wherein: the antioxidant is at least one of hindered phenol antioxidants, phosphite antioxidants and thioether antioxidants; the weather-resistant agent is at least one of a benzophenone ultraviolet light absorber, a benzotriazole ultraviolet light absorber and a hindered amine weather-resistant agent; the colorant is one of pigment colorant, dye colorant and light dispersing agent.
7. The composition of claim 1, wherein: the coating comprises the following components in parts by weight:
35-45 parts of polystyrene resin;
20-30 parts of polyphenyl ether resin;
35-45 parts of toughening agent;
0.2-0.5 parts of lubricant.
8. A process for preparing the transparent polystyrene composition according to claim 1, comprising the steps of:
Adding the components into a mixer to mix uniformly to obtain a uniformly mixed material; and then adding the mixture into a main feeding port of a double-screw extruder, wherein the temperature of each section of the double-screw extruder is 160-250 ℃, the screw rotating speed is 200-800 rpm, and obtaining the transparent polystyrene composition after melting, extruding and granulating in the extruder.
9. Use of the transparent polystyrene composition according to claim 1 in household appliances, automobiles, lighting.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440205A (en) * | 2008-12-26 | 2009-05-27 | 惠州市沃特新材料有限公司 | Flame-retardant polyphenylene oxide composition |
| CN101880451A (en) * | 2010-07-23 | 2010-11-10 | 北京化工大学 | A kind of halogen-free flame-retardant polyphenylene ether compound and its preparation method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6274670B1 (en) * | 1998-12-21 | 2001-08-14 | General Electric Company | Semi-transparent blends of polyphenylene ether, styrenic resins, and elastomeric block copolymers |
| KR100416035B1 (en) * | 2001-02-23 | 2004-02-05 | 삼성종합화학주식회사 | Flame Retardant Syndiotactic Polystyrene Resin Composition |
| CN102399433B (en) * | 2010-09-16 | 2014-01-08 | 广东瑞能新材料有限公司 | Polyphenylene oxide composition used for photovoltaic junction box |
| CN115232428B (en) * | 2022-07-04 | 2024-05-24 | 上海金山锦湖日丽塑料有限公司 | High-transparency high-impact flame-retardant polystyrene resin composition and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440205A (en) * | 2008-12-26 | 2009-05-27 | 惠州市沃特新材料有限公司 | Flame-retardant polyphenylene oxide composition |
| CN101880451A (en) * | 2010-07-23 | 2010-11-10 | 北京化工大学 | A kind of halogen-free flame-retardant polyphenylene ether compound and its preparation method |
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