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Weather-resistant, flame retardant and impact-resistant polystyrene material, and preparation method

A polystyrene and polystyrene resin technology, applied in the field of polystyrene materials and preparation, can solve the problems of reducing the strength and toughness of the material, increasing the impact strength, increasing the molding of the material, etc., and achieves easy molding, high weather resistance, Production cost reduction effect

Inactive Publication Date: 2013-06-12
滁州格美特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

China CN 102115571A uses high-impact polystyrene resin and toughening agent to increase impact strength, although the impact strength is improved, but the cost is too large, which is not conducive to industrialization
China CN 101835827A uses the combination of expansion agent and flame-retardant binder to overcome the flammability of polystyrene materials, but greatly reduces the strength and toughness of the material, and increases the difficulty of forming the material

Method used

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  • Weather-resistant, flame retardant and impact-resistant polystyrene material, and preparation method
  • Weather-resistant, flame retardant and impact-resistant polystyrene material, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Weigh 100 parts of polystyrene resin, 24 parts of styrene-butadiene-styrene copolymer, 8 parts of nano-calcium carbonate (average particle diameter is 60nm), 0.8 part of N-cyclohexylethanolamine and [β- (3,5 di-tert-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester 0.6 part, 2-hydroxyl-4-methoxy benzophenone 0.5 part, epoxy resin coated ammonium polyphosphate 6 parts and 4 parts of melamine cyanurate, 1 part of zinc borate, and 2.8 parts of calcium stearate were placed in a reaction kettle, and stirred and mixed for 40 minutes at 85°C and normal pressure;

[0036] (2) After mixing, put the material into a screw extruder with a diameter of 54mm for granulation. The screw length-to-diameter ratio is 35, the rotation speed is 65r / min, and the segmented temperature of the barrel is: 170-180°C, 190-200°C, 200~210℃, head temperature 195~200℃;

[0037] (3) After granulation, dry the pellets at 85°C for 2 hours before injection molding. The injection molding t...

Embodiment 2

[0040] (1) Weigh 100 parts of polystyrene resin, 20 parts of EPDM rubber, 15 parts of nano-titanium dioxide (average particle diameter is 50nm), 1.0 parts of stearyl thiodipropionate and [β-(3,5 0.5 part of di-tert-butyl 4-hydroxy-phenyl) propionate] pentaerythritol ester, 0.2 part of tris(1,2,2,6,6-pentamethylpiperidinyl) phosphite, polyphosphoric acid coated with polyurethane elastomer 5 parts of ammonium, 3 parts of melamine cyanurate, 2 parts of antimony trioxide, and 2.5 parts of zinc stearate were placed in a reaction kettle, and stirred and mixed at 90°C and normal pressure for 35 minutes;

[0041] (2) After mixing, put the material into a screw extruder with a diameter of 46mm to granulate. The screw length-to-diameter ratio is 32, the rotation speed is 80r / min, and the segmental temperature of the barrel is: 165-175°C, 180-190°C, 200~210℃, head temperature 190~195℃;

[0042] (3) After granulation, dry the pellets at 80°C for 2.5 hours before injection molding. The in...

Embodiment 3

[0045] (1) Take by weighing 100 parts of polystyrene resin, 32 parts of styrene-butadiene-styrene copolymer, 25 parts of nano barium sulfate (average particle diameter is 55nm), 0.6 part of dilauryl thiodipropionate and 0.4 parts of 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 0.6 parts of 2-hydroxy-4-methoxybenzophenone, coated with epoxy resin Put 6 parts of ammonium polyphosphate, 6 parts of melamine octamolybdate, 4 parts of molybdenum oxide, and 3.5 parts of calcium stearate in a reaction kettle, and stir and mix at 80°C and normal pressure for 45 minutes;

[0046] (2) After mixing, put the material into a screw extruder with a diameter of 62mm to granulate. The length-to-diameter ratio of the screw is 40, the rotation speed is 55r / min, and the segmental temperature of the barrel is: 160-170°C, 180-190°C, 205~215℃, head temperature 185~190℃;

[0047] (3) After granulation, dry the pellets at 85°C for 2 hours before injection molding. The injection molding tem...

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Abstract

The invention belongs to the field of polymer material modification and processing technology, and relates to a polystyrene material and a preparation method. The polystyrene material is composed by the components of, by weight, 100 parts of a polystyrene resin, 20-35 parts of a toughening agent, 8-25 parts of a filler, 1-2.8 parts of an antioxidant, 0.2-1.0 parts of a light stabilizer, 8-15 parts of a flame retardant, 1-6 parts of a flame retardant synergist and 2.5-4 parts of a lubricant. The weather-resistant, flame retardant and impact-resistant polystyrene material provided by the invention has relatively high impact strength, relatively high tensile strength, good weather resistance and flame retardance, easy processing, stable performance and long service life, so that the application scope of the polystyrene material is expanded, and the polystyrene material can replace engineering plastics in some fields, can be used for electrical and mechanical parts, and has broad market application prospects.

Description

technical field [0001] The invention belongs to the technical field of polymer modification and processing, and relates to a polystyrene material and a preparation method. Background technique [0002] Polystyrene resin is one of the widely used synthetic resins. Generally, polystyrene products have extremely high transparency, the light transmittance can reach more than 90%, good electrical insulation performance, easy coloring, good processing fluidity, good rigidity and Good chemical corrosion resistance, low price, etc., but ordinary polystyrene materials have many shortcomings, such as brittleness, low impact strength, easy to crack, poor flame retardancy, poor weather resistance, low heat distortion temperature, etc. , These shortcomings have greatly limited the scope of application of polystyrene. [0003] At present, in order to solve the shortcomings of polystyrene materials, the method of blending it with rubber or copolymerizing with other resins is mainly used t...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L9/02C08L53/02C08L23/16C08K13/06C08K9/10C08K3/26C08K3/30C08K3/22C08K5/3492C08K3/32B29C47/92B29C45/76B29C48/92
Inventor 郭学林
Owner 滁州格美特科技有限公司
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