CN103360744B - anti-aging PC-PMMA plastic alloy - Google Patents
anti-aging PC-PMMA plastic alloy Download PDFInfo
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- CN103360744B CN103360744B CN201310300494.0A CN201310300494A CN103360744B CN 103360744 B CN103360744 B CN 103360744B CN 201310300494 A CN201310300494 A CN 201310300494A CN 103360744 B CN103360744 B CN 103360744B
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Abstract
The invention discloses a kind of anti-aging PC-PMMA plastic alloy, be made up of by weight following component: 100 parts of PC, 16-24 part PMMA, 2-4 part compatilizers, 0.5-1.5 part antiaging agents.Anti-aging PC-PMMA plastic alloy of the present invention, filling flow is good, and processing characteristics is excellent, high-impact, chemical-resistant, hardness height not easily cut.Anti-aging PC-PMMA plastic alloy of the present invention can require higher food product pack at the higher communication apparatus shell of surface hardness and effects on surface gloss.
Description
Technical field
The present invention relates to a kind of polyblend, particularly relate to a kind of anti-aging PC-PMMA plastic alloy.
Background technology
PMMA is a kind of thermoplastics, has splendid weathering resistance, and higher surface hardness has good processing characteristics, has high transparency, and transmittance, up to 91-93%, can pass through visible ray 99%, UV-light 72%, and quality is light, has outstanding weathering resistance.The mobility of PC is poor, easily produces internal stress, and responsive to notch shock, wear no resistance, visible light transmittance rate is 88%, can meet transparent requirement, and heat-drawn wire, up to 120-143 DEG C, has good thermotolerance; Molding shrinkage is only 0.5-0.7%, good stability of the dimension; And PC's is excellent in cushion effect.Above bi-material is good because having transmittance, surfacing is bright and clean, blend has beautiful pearliness and metal light and is favored by people, is widely used in liquid-crystal display, fluorescent tube, Communication Equipment shell and surface hardness and glossiness requires higher electrical equipment and wrapping material.
But current PC-PMMA plastic alloy ageing resistance is not good.
Summary of the invention
For above shortcomings in prior art, technical problem to be solved by this invention is to provide a kind of anti-aging PC-PMMA plastic alloy, has good ageing resistance.
Technical problem to be solved by this invention is achieved by the following technical solution:
A kind of anti-aging PC-PMMA plastic alloy, is made up of by weight following component: 100 parts of PC, 16-24 part PMMA, 2-4 part compatilizers, 0.5-1.5 part antiaging agents.
Described antiaging agent, be made up of by weight following component: 30-50 part 4, the two octadecyl of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.
4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), No. CAS: 96-69-5, English name: 4,4 '-Thio-bis (6-tert-butyl-m-methyl phenol).
1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, No. CAS: 1843-03-4,4,4 ', 4 "-(1-methyl-1-propanyl-3-ylidene) tris [2-(1,1-dimethylethyl)-5-methyl-Phenol.
The two octadecyl of thio-2 acid, English name: Distearyl thiodipropionate, No. CAS: 693-36-7.
Two to 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and thio-2 acid octadecyl is uniformly mixed, this antiaging agent can be obtained.
Described compatilizer is PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-Pa6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.
Industry universal method can be adopted to be prepared anti-aging PC-PMMA plastic alloy of the present invention, and such as: take each component by proportioning, after mixing, melting mixing, extruding pelletization, namely obtain described anti-aging PC-PMMA plastic alloy.
Concrete, can for take each component by proportioning, in mixing machine, control rotating speed under room temperature at 300-400 rev/min, mixing 5-10 minute, proceeds to after taking-up in screw extrusion press, extruding pelletization at 220-250 DEG C of temperature, namely obtains described anti-aging PC-PMMA plastic alloy.
Obviously, in the present invention for improving other performances of product, other auxiliary agents can also be added adaptively, as fire retardant, tinting material and static inhibitor etc.
Contriver is drawn by great many of experiments, by 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and the two octadecyl three kinds of antiaging agents of thio-2 acid carry out reasonable composite use, synergy, antiageing effect is obvious.
Anti-aging PC-PMMA plastic alloy of the present invention, filling flow is good, and processing characteristics is excellent, high-impact, chemical-resistant, hardness height not easily cut.Anti-aging PC-PMMA plastic alloy of the present invention can require higher food product pack at the higher communication apparatus shell of surface hardness and effects on surface gloss, and has outstanding heat aging performance, uses under being adapted at thermal extremes environment.
Embodiment
Embodiment 1
Each raw material is taken according to embodiment 1 data corresponding in table 1.Join in high-speed mixer by each component, control rotating speed at 300-400 rev/min under room temperature, mixing 5-10 minute, proceeds to after taking-up in screw extrusion press, extruding pelletization at 235 DEG C of temperature, obtains anti-aging PC-PMMA plastic alloy.
Table 1: anti-aging PC-PMMA plastic alloy formula table unit: kilogram
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| PC resin | 100 | 100 | 100 | 100 |
| PMMA resin | 20 | 20 | 20 | 20 |
| Compatilizer SEBS-g-MAH | 3 | 3 | 3 | 3 |
| 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) | 0.4 | 0.8 | / | 0.5 |
| 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane | 0.4 | / | 0.8 | 0.5 |
| The two octadecyl of thio-2 acid | 0.2 | 0.2 | 0.2 | / |
The injection grade PC resin of Japanese Di Ren company trade mark 1250Y selected by PC resin;
The PMMA resin of SUMITOMO CHEMICAL company trade mark LG2 selected by PMMA resin.
Compatilizer SEBS-g-MAH, Chinese name: maleic anhydride graft SIS/SEBS.
Embodiment 2-4
Each raw material is taken respectively according to embodiment 2-4 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described anti-aging PC-PMMA plastic alloy.
Test case 1
According to thermo-oxidative ageing experimental standard GB/T7141-2008, artificially roughening (90 DEG C, 500h) is carried out to obtained plastics, and measures tensile strength, the Izod notched impact strength before and after this plastic artificial's accelerated deterioration respectively.
Tensile strength × 100% before stretching strength retentivity=(tensile strength before the tensile strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.
Izod notched impact strength × 100% before shock strength conservation rate=(Izod notched impact strength before the Izod notched impact strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.
Table 2: plastics ageing resistance test chart (90 DEG C, 500h)
| Stretching strength retentivity, % | Izod notched impact strength conservation rate, % | |
| Embodiment 1 | 81.4 | 81.3 |
| Embodiment 2 | 80.1 | 79.8 |
| Embodiment 3 | 80.3 | 80.2 |
| Embodiment 4 | 79.8 | 80.4 |
Claims (2)
1. an anti-aging PC-PMMA plastic alloy, is characterized in that, is made up of by weight following component: 100 parts of PC, 16-24 part PMMA, 2-4 part compatilizers, 0.5-1.5 part antiaging agents;
Described antiaging agent is made up of by weight following component: 30-50 part 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1, the two octadecyl of 1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.
2. anti-aging PC-PMMA plastic alloy as claimed in claim 1, is characterized in that: described compatilizer is PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-PA6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.
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| CN201310300494.0A CN103360744B (en) | 2013-07-14 | 2013-07-14 | anti-aging PC-PMMA plastic alloy |
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| CN201310300494.0A CN103360744B (en) | 2013-07-14 | 2013-07-14 | anti-aging PC-PMMA plastic alloy |
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| CN103360744A CN103360744A (en) | 2013-10-23 |
| CN103360744B true CN103360744B (en) | 2015-11-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109942850B (en) * | 2019-03-19 | 2021-10-26 | 深圳市新纶科技股份有限公司 | Modified PMMA optical film |
| CN110607063A (en) * | 2019-11-01 | 2019-12-24 | 四川龙华光电薄膜股份有限公司 | PC/PMMA composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702714A (en) * | 2012-06-15 | 2012-10-03 | 昆山聚威工程塑料有限公司 | Optical diffusing poly carbonate (PC)/ polymethyl methacrylate (PMMA) alloy |
| CN102850754A (en) * | 2012-09-21 | 2013-01-02 | 常熟市凯力达蜂窝包装材料有限公司 | Flame retardant transparent polycarbonate/polymethyl methacrylate alloy material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702714A (en) * | 2012-06-15 | 2012-10-03 | 昆山聚威工程塑料有限公司 | Optical diffusing poly carbonate (PC)/ polymethyl methacrylate (PMMA) alloy |
| CN102850754A (en) * | 2012-09-21 | 2013-01-02 | 常熟市凯力达蜂窝包装材料有限公司 | Flame retardant transparent polycarbonate/polymethyl methacrylate alloy material |
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Effective date of registration: 20170324 Address after: 519000 Zhuhai science and Technology Innovation Coast, Guangdong, A-8 Patentee after: Zhuhai new Olympic disc manufacturing Co., Ltd. Address before: Room 271, building 280, Shuguang Road, Shanghai, Minhang District, 201111, China Patentee before: Shanghai Qiucheng New Material Technology Co., Ltd. |
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