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Epoxy resin-reinforced polystyrene halogen-free flame-retardant material and preparation method thereof

A technology of polystyrene and epoxy resin, which is applied in the field of polymer materials, can solve the problems of decreased tensile strength, high performance, and decreased rigidity of polystyrene, so as to achieve good strength improvement, comprehensive performance improvement, and good flame retardant effect Effect

Active Publication Date: 2013-04-17
SHENZHEN YATAIXING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also has some disadvantages that limit the use of polystyrene in a wider range of fields. Because of its relatively high hardness and brittle performance, polystyrene cannot be used as a basic material in some environments that require good toughness. Toughening modification for the existing shortcomings of polystyrene to increase its application field
[0003] Styrene-butadiene-styrene block copolymer (SBS) is well compatible with polystyrene, so adding SBS can improve the impact strength of polystyrene, but the addition of elastomer SBS makes polystyrene Vinyl is less rigid, resulting in a decrease in its tensile strength

Method used

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  • Epoxy resin-reinforced polystyrene halogen-free flame-retardant material and preparation method thereof
  • Epoxy resin-reinforced polystyrene halogen-free flame-retardant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The epoxy resin reinforced polystyrene flame retardant material provided in Example 1 contains the following ingredients in parts by weight:

[0047] General-purpose polystyrene (GPPS) 76;

[0048] Elastomer (SBS) 10;

[0049] Epoxy resin (EP) 3;

[0050] 4,4′-Diaminodiphenylmethane (DDM) 1;

[0051] White oil 0.1;

[0052]Coated red phosphorus flame retardant 5;

[0053] Diphenyl phosphate 4;

[0054] Antioxidant 168 0.4;

[0055] Dispersant EBS 0.5.

[0056] The preparation method of the epoxy resin reinforced polystyrene flame retardant material that embodiment 1 provides comprises the steps:

[0057] Step 1, drying: polystyrene and styrene-butadiene-styrene block copolymer were dried in an oven at 80°C for 6 hours, and epoxy resin was dried in an oven at 70°C for 4 hours;

[0058] Step 2, weighing and mixing the formula components: weigh the above formula materials according to the above weight fractions, and then mix them in a high-speed mixer for 5 minutes...

Embodiment 2

[0062] The epoxy resin reinforced polystyrene flame retardant material provided in Example 2 contains the following ingredients in parts by weight:

[0063] General-purpose polystyrene (GPPS) 75;

[0064] Elastomer (SBS) 10;

[0065] Epoxy resin (EP) 4;

[0066] DDM 1;

[0067] White oil 0.2;

[0068] Coated red phosphorus flame retardant 5;

[0069] Diphenyl phosphate 4;

[0070] Antioxidant 168 0.5;

[0071] Dispersant EBS 0.3.

[0072] The preparation method of the epoxy resin reinforced polystyrene flame retardant material that embodiment 2 provides comprises the steps:

[0073] Step 1, drying: polystyrene and styrene-butadiene-styrene block copolymer were dried in an oven at 80°C for 6 hours, and epoxy resin was dried in an oven at 70°C for 4 hours;

[0074] Step 2, weighing and mixing the formula components: weigh the above formula materials according to the above weight fractions, and mix them in a high-speed mixer for 7 minutes;

[0075] Step 3. Extrusion and ...

Embodiment 3

[0078] The epoxy resin reinforced polystyrene flame retardant material provided in Example 3 contains the following ingredients in parts by weight:

[0079] General-purpose polystyrene (GPPS) 74;

[0080] Elastomer (SBS) 10;

[0081] Epoxy resin (EP) 5;

[0082] DDM 1;

[0083] White oil 0.3;

[0084] Coated red phosphorus flame retardant 5;

[0085] Diphenyl phosphate 4;

[0086] Antioxidant 168 0.4;

[0087] Dispersant EBS 0.2.

[0088] The preparation method of the epoxy resin reinforced polystyrene flame retardant material provided by embodiment 3 comprises steps:

[0089] Step 1, drying: polystyrene and styrene-butadiene-styrene block copolymer were dried in an oven at 80°C for 6 hours, and epoxy resin was dried in an oven at 70°C for 4 hours;

[0090] Step 2, weighing and mixing the formula components: weigh the above formula materials according to the above weight fractions, and mix them in a high-speed mixer for 10 minutes;

[0091] Step 3. Extrusion and granu...

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Abstract

The invention discloses an epoxy resin-reinforced polystyrene halogen-free flame-retardant material, which comprises the following raw materials in part by weight: 68-80 parts of polystyrene, 8-20 parts of elastomer, 3-5 parts of epoxy resin, 0.3-1.5 parts of epoxy curing agent, 0.1-0.3 parts of lubricant, 8-12 parts of flame retardant, 0.4-0.8 parts of antioxidant, and 0.2-0.5 parts of dispersant. The invention further discloses an epoxy resin-reinforced polystyrene halogen-free flame-retardant material and a preparation method thereof. According to the invention, a styrene-butadiene-styrene block copolymer is added to improve the toughness, and the epoxy resin is added simultaneously for cross-linking and curing through the epoxy curing agent to form a reticular structure, so that polystyrene particles are adhered on the surface to form a core-shell structure, thereby improving the impact property and the strength of polystyrene. Meanwhile, microencapsulated red phosphorus and diphenyl phosphate are added to the halogen-free flame retardant so as to improve the flame retardancy of the system and widen the application scope of polystyrene.

Description

technical field [0001] The invention relates to a polymer material, in particular to an epoxy resin reinforced polystyrene halogen-free flame-retardant material and a preparation method thereof. Background technique [0002] Polystyrene (PS) has high rigidity, excellent dimensional stability and good material transparency, so it is widely used in many fields such as electronic components, auto parts, packaging products, plastic toys, Internet, engineering industry and household appliances , its usage ranks third after polyvinyl chloride (PVC) and polyolefins. However, it also has some disadvantages that limit the use of polystyrene in a wider range of fields. Because of its relatively high hardness and brittle performance, polystyrene cannot be used as a basic material in some environments that require good toughness. Toughening modification is carried out for the existing shortcomings of polystyrene to increase its application fields. [0003] Styrene-butadiene-styrene bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L53/02C08L63/00C08G59/50C08G59/22C08K13/06C08K9/10C08K3/02C08K5/523C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92561B29C2948/92895B29C2948/92904
Inventor 徐东徐永蒋世俊
Owner SHENZHEN YATAIXING IND
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