Efficient fire retardant type graphite bulk polymerized PS resin

A bulk polymerization and flame retardant technology, applied in the field of high-efficiency flame retardant graphite bulk polymerization PS resin, can solve the problems of low impact strength, poor heat resistance, stress cracking, etc., to improve the utilization rate of raw materials, stable product quality, The effect of high utilization of raw materials

Inactive Publication Date: 2015-07-08
BEIJING WUZHOU FOAM PLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of ordinary polystyrene are brittleness, low impact strength, prone to stress cracking, poor heat resistance and intolerance to boiling water, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The technical solution adopted in the present invention is high-efficiency flame-retardant graphite body-polymerized PS resin, and the high-efficiency flame-retardant graphite body-polymerized PS resin is prepared by a bulk method polymerization process; the preparation raw materials of the high-efficiency flame-retardant graphite body-polymerized PS resin include: Graphite powder, flame retardant, talc and styrene liquid.

[0031] The mass fraction of each raw material is: graphite powder 8%, flame retardant 2%, talcum powder 1%, styrene liquid 89%. The flame retardant is hexabromododecane powder with a particle size of 1500 mesh. The particle size of graphite powder is 1500 mesh. The particle size of talcum powder is 2000 mesh.

Embodiment 2

[0033] A preparation method of highly efficient flame-retardant graphite bulk polymerization PS resin, the method is a bulk polymerization process; the steps of the preparation method are:

[0034] (1) Add graphite powder, flame retardant, talc powder and styrene liquid into the autoclave for pre-reaction by adding graphite powder, flame retardant, talc powder and styrene liquid into the autoclave; the reaction temperature of the autoclave is 90°C and the speed is 33 r / min; The conversion rate of the internal raw material reaction was 34%.

[0035] The mass fraction of each raw material is: graphite powder 8%, flame retardant 2%, talcum powder 1%, styrene liquid 89%. The flame retardant is hexabromododecane powder with a particle size of 1200 mesh; the particle size of graphite powder is 1800 mesh; the particle size of talcum powder is 2000 mesh.

[0036] (2) Input the pre-reaction product of the previous step into the No. 1 reactor for primary reaction, and add a catalyst to...

Embodiment 3

[0043] On the basis of Example 2, this embodiment is a preparation method of high-efficiency flame-retardant graphite bulk polymerized PS resin, which is a bulk polymerization process; the steps of the preparation method are:

[0044] (1) Add graphite powder, flame retardant, talc powder and styrene liquid into the autoclave for pre-reaction by adding graphite powder, flame retardant, talc powder and styrene liquid into the autoclave; The conversion rate of the internal raw material reaction was 32%.

[0045]The mass fraction of each raw material is: graphite powder 6%, flame retardant 3%, talc powder 0.5%, styrene liquid 90.5%. The flame retardant is hexabromododecane powder with a particle size of 500 mesh; the particle size of graphite powder is 2500 mesh; and the particle size of talcum powder is 1000 mesh.

[0046] (2) Input the pre-reaction product from the previous step into the No. 1 reactor for primary reaction; the reaction temperature is 120°C;

[0047] (3) Put th...

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Abstract

The invention discloses an efficient fire retardant type graphite bulk polymerized PS resin and a preparation method thereof. The efficient fire retardant type graphite bulk polymerized PS resin is prepared through a bulk polymerization process; the preparation raw material comprises graphite powder, a fire retardant, talcum powder and a styrene liquid. Because the PS resin contains a graphite component, the PS resin has efficient fire retardant characteristic and meets the material requirement of the insulation board; simultaneously, by adopting the preparation method, the traditional bulk polymerization process is improved, and an efficient PS resin production is processed by cooperating with the graphite component; the method has the advantages of high raw material utilization rate, energy conservation and efficiency, and stable product quality; the acidic neodymium phosphate is taken as a catalyst so that the reaction efficiency and the conversion rate are greatly increased, the raw material utilization rate is increased, the production cost is reduced, and the productivity effect and the popularization sense are excellent.

Description

technical field [0001] The invention relates to a PS resin, in particular to a high-efficiency flame-retardant graphite bulk polymerized PS resin and a preparation method of the resin. Background technique [0002] Ordinary polystyrene resin is non-toxic, odorless, colorless transparent particles, glass-like brittle materials, its products have extremely high transparency, light transmittance can reach more than 90%, good electrical insulation performance, easy to color, process Good fluidity, good rigidity and good chemical corrosion resistance. The disadvantages of ordinary polystyrene are brittleness, low impact strength, prone to stress cracking, poor heat resistance and intolerance to boiling water. [0003] Therefore, it is necessary to prepare new polystyrene resins with various characteristics to meet the material requirements of different fields, improve the performance of polystyrene products, and enable polystyrene resins to be applied to multiple fields and achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08F2/02C08F4/48C08F2/44C08K3/04C08K3/34C08K5/02
Inventor 刘明
Owner BEIJING WUZHOU FOAM PLASTICS CO LTD
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