Preparing method of PS (polystyrene) composite

A technology of polystyrene and composite materials, applied in the field of preparation of polystyrene composite materials, can solve the problems of obvious low temperature brittleness, poor impact resistance, stress cracking, etc., to enhance impact resistance and toughness, avoid stress cracking, improve rigid effect

Inactive Publication Date: 2015-09-23
SUZHOU YUNSHU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the rigidity of the molecular chain of PS resin, its products are prone to stress

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Embodiment 1: A preparation method of polystyrene composite material, including the following steps:

[0017] (1) Prepare the following ingredients, in mass percentage: polystyrene (PS) 65%, modified resin filler 34%, antioxidant 0.3%, lubricant 0.3%, and auxiliary agent 0.4%;

[0018] (2) Dry the polystyrene (PS) and modified resin fillers at 75°C by blowing air for 7 hours;

[0019] (3) Cool the dry polystyrene (PS) and modified resin filler obtained in step 2 to room temperature and place them in a high-mixer to mix them with antioxidants, lubricants, and additives to obtain a premix;

[0020] (4) Put the premix obtained in step 3 in a twin-screw extruder to melt, extrude and granulate to obtain the product. The melt extrusion granulation process conditions: temperature in the first zone is 170°C, temperature in the second zone is 200°C, and temperature in the third zone 215℃, four zone temperature 220℃, five zone temperature 225℃, six zone temperature 235℃, seven zone tempe...

Example Embodiment

[0022] Embodiment 2: A preparation method of polystyrene composite material, including the following steps:

[0023] (1) Prepare the following ingredients, by mass percentage: 89% polystyrene (PS), 10% modified resin filler, 0.3% antioxidant, 0.3% lubricant, 0.4% auxiliary agent;

[0024] (2) Dry the polystyrene (PS) and modified resin filler at 85°C with air blowing for 4h;

[0025] (3) Cool the dry polystyrene (PS) and modified resin filler obtained in step 2 to room temperature and place them in a high-mixer to mix them with antioxidants, lubricants, and additives to obtain a premix;

[0026] (4) Put the premix obtained in step 3 in a twin-screw extruder to melt, extrude and pelletize to obtain the product. The melt extrusion pelletizing process conditions: temperature in the first zone is 200℃, temperature in the second zone is 215℃, and temperature in the third zone 225℃, temperature in zone four is 230℃, zone five is 235℃, zone six is ​​240℃, zone seven is 240℃, head temperature...

Example Embodiment

[0028] Embodiment 3: A preparation method of polystyrene composite material, including the following steps:

[0029] (1) Prepare the following ingredients, by mass percentage: 78% polystyrene (PS), 20% modified resin filler, 0.4% antioxidant, 0.4% lubricant, 1.2% auxiliary agent;

[0030] (2) Dry the polystyrene (PS) and modified resin fillers at 80°C by blowing air for 5 hours;

[0031] (3) Cool the dry polystyrene (PS) and modified resin filler obtained in step 2 to room temperature and place them in a high-mixer to mix them with antioxidants, lubricants, and additives to obtain a premix;

[0032] (4) The premix obtained in step 3 is placed in a twin-screw extruder to melt, extrude and pelletize to obtain the product. The melt extrusion pelletizing process conditions: temperature in the first zone is 185°C, temperature in the second zone is 210°C, and temperature in the third zone 220℃, temperature in zone four is 225℃, zone five is 230℃, zone six is ​​235℃, zone seven is 240℃, head...

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PUM

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Abstract

The invention discloses a preparing method of PS (polystyrene) composite. The PS composite comprises, by weight, 65% to 89% of PS, 10% to 34% of modified resin filler, 0.3% to 0.4% of antioxidant, 0.3% to 0.4% of lubricant, and 0.4% to 1.2% of aid. According to the preparing method, styrene butadiene transparent impact resin is used as modified resin filler for PS, rigidity of PS resin can be effectively improved, impact resistance and toughness of the PS resin can be enhanced, and products of the PS composite are protected from stress cracking during using; by the use with other aids, the thermal stability, weatherability and cold brittleness of the PS resin are effectively improved, and thus, the PS resin excellent in comprehensive performance is prepared.

Description

technical field [0001] The invention relates to the technical field of preparation of composite materials, in particular to a preparation method of polystyrene composite materials. Background technique [0002] Polystyrene (PS) is a colorless and transparent thermoplastic that is easy to process and has the advantages of low cost, rigidity, insulation, and good printability. It can be widely used in the light industry market, daily decoration, lighting instructions and packaging, etc. It is also a good insulating material and heat insulation material in the electrical aspect, and can be used to make various lampshades, instrument shells, optical and chemical instrument parts, transparent Film, capacitor dielectric layer, etc. [0003] The moisture absorption rate of polystyrene (PS) is extremely low, and the saturated water absorption rate is 0.03%-0.05%, which is only one tenth of that of polymethyl methacrylate (PMMA). It has excellent moisture-proof and anti-permeat...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L101/00C08K5/20B29C47/92B29B9/06B29C48/92
Inventor 戴晓宸
Owner SUZHOU YUNSHU NEW MATERIAL TECH
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