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Weather-resistant polystyrene masterbatch and preparation method thereof

A technology of polystyrene and masterbatch, which is applied in the field of polystyrene material production, can solve the problems of easy aging and discoloration, restricting the application range of polystyrene, and the decline of polystyrene mechanical properties, so as to achieve the improvement of mechanical properties and the improvement of mechanical properties , low cost effect

Inactive Publication Date: 2018-06-12
青岛绿谷生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because polystyrene has unsaturated double bonds, it is sensitive to ultraviolet light and is easy to age and change color, which will eventually reduce the mechanical properties of polystyrene and cause degradation.
Thereby restricting the scope of application of polystyrene

Method used

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  • Weather-resistant polystyrene masterbatch and preparation method thereof
  • Weather-resistant polystyrene masterbatch and preparation method thereof
  • Weather-resistant polystyrene masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Take each raw material respectively by weight ratio as follows:

[0021] Polystyrene raw material: 45

[0022] Dispersed lubricant (TAS-2A): 0.5

[0023] Antioxidant (copolymer of ethylene-octene): 1.0

[0024] Colorant: 4.5

[0025] Titanate coupling agent: 1.0

[0026] UV absorber (2-hydroxy-4-n-octyloxybenzophenone): 3.0

[0027] Light stabilizer: 3.5

[0028] Titanium dioxide: 12

[0029] Inorganic filling: (calcium carbonate talcum powder 27 mica powder 27 kaolin 27 silica 27)

[0030] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 160-190°C, the third zone is 210-220°C, the fourth zone is 210-215°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa. ...

Embodiment 2

[0035] (1) Take each raw material respectively by weight ratio as follows:

[0036] Polystyrene raw material: 40

[0037] Dispersed lubricant (TAS-2A): 0.3

[0038] Antioxidant (copolymer of ethylene-octene): 0.8

[0039] Colorant: 4.0

[0040] Titanate coupling agent: 0.8

[0041] UV absorber (2-hydroxy-4-n-octyloxybenzophenone): 2.5

[0042] Light stabilizer: 3.0

[0043] Titanium dioxide: 10

[0044] Inorganic filling: (calcium carbonate talcum powder 25 mica powder 25 kaolin 25 silica 25)

[0045] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 160-190°C, the third zone is 210-220°C, the fourth zone is 210-215°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa. ...

Embodiment 3

[0050] (1) Take each raw material respectively by weight ratio as follows:

[0051] Polystyrene raw material: 50

[0052] Dispersed lubricant (TAS-2A): 0.7

[0053] Antioxidant (copolymer of ethylene-octene): 1.2

[0054] Colorant: 5.0

[0055] Titanate coupling agent: 1.2

[0056] UV absorber (2-hydroxy-4-n-octyloxybenzophenone): 3.5

[0057] Light stabilizer: 4.0

[0058] Titanium dioxide: 15

[0059] Inorganic filling: (calcium carbonate talc powder 30 mica powder 30 kaolin 30 silica 30)

[0060] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 160-190°C, the third zone is 210-220°C, the fourth zone is 210-215°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

...

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Abstract

The invention aims at providing a weather-resistant polystyrene masterbatch without influencing the mechanical property of a material, and a preparation method thereof. The weather-resisting polystyrene masterbatch is characterized in that polystyrene is used as the structural material and is widely applied to the fields such as automobiles, and household appliances; the ageing resistance level directly influences the engineering application scope and prospect of the structural material; polystyrene contains unsaturated dual bonds and is sensitive to UV light and is easily aged and discolored,so that the mechanical property of the polystyrene is reduced, and the polystyrene is degraded, and as result, the application scope of the polystyrene is limited. To solve the abovementioned problem, the weather resistance of the polystyrene is to be changed. The weather resistance of the weather-resistant polystyrene masterbatch is obviously improved and increased; the production method is simple and convenient; materials are easily obtained; the cost is low; and no pollution is caused.

Description

technical field [0001] The invention belongs to the technical field of polystyrene material production and aims to improve the original deficiencies of polystyrene. Produce products that meet social needs. Background technique [0002] Polystyrene, English name: polystyrene, abbreviated name PS. Its chemical formula is: C6H5. [0003] As a structural material, polystyrene is widely used in automobiles, household appliances and other fields, and the performance of aging resistance directly affects the scope and prospects of engineering applications of structural materials. Since polystyrene has unsaturated double bonds, it is sensitive to ultraviolet light and is prone to aging and discoloration, which eventually reduces the mechanical properties of polystyrene and degrades it. Thereby restricting the scope of application of polystyrene. Therefore, it is essential to change the weather resistance of polystyrene. Contents of the invention [0004] The object of the pres...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L23/08C08K13/02C08K3/22C08K5/10C08K5/132C08K3/26C08K3/34C08K3/36B29C47/92B29C48/92
CPCC08L25/06B29C48/92B29C2948/92514B29C2948/92704C08L23/0815C08K13/02C08K2003/2241C08K5/10C08K5/132C08K2003/265C08K3/346C08K3/34C08K3/36
Inventor 丁磊
Owner 青岛绿谷生物科技有限公司
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