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Flame-retardant polystyrene resin

A polystyrene resin and polystyrene technology, which is applied in the field of polymer materials to achieve the effect of increasing the ignition temperature and improving the thermal resistance.

Inactive Publication Date: 2015-01-21
黄忠波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although halogen flame retardants are widely used, the hazards of halogen flame retardants containing toxic and harmful gases to the human body and the environment have been valued by various countries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A flame-retardant polystyrene resin, the composition comprising the following components and weight percentage: 70% polystyrene, 3% polyethylene, 1% impact modifier, 3% flame-retardant assistant , 0.1% additives, 21.7% flame retardant and 1.2% coupling agent.

Embodiment 2

[0030] A flame-retardant polystyrene resin, the composition includes the following components and weight percentage: 74% polystyrene, 4% polyethylene, 3% impact modifier, 3% flame-retardant assistant , 0.6% additives, 13.4% flame retardant and 1.5% coupling agent.

Embodiment 3

[0032] A flame retardant polystyrene resin, the composition comprises the following components and weight percentage: 72% polystyrene, 3.5% polyethylene, 2% impact modifier, 3.5% flame retardant assisting agent , 0.2% additives, 17.5% flame retardant and 1.3% coupling agent.

[0033] The components are pre-mixed, blended and granulated through a twin-screw extruder with an aspect ratio of 25-40, the extrusion temperature is set at 180-200°C, and the screw speed is 500rpm to ensure that the material is extruded under a certain degree of vacuum .

[0034] Generally speaking, the polystyrene resin composition has a series of advantages such as flame retardancy, environmental protection, weather resistance, heat stability, good mechanical properties, and easy processing and molding, and is very suitable for monitors, televisions, copiers, fax machines, printers, air conditioners, etc. Machines, refrigerators and other light-colored home appliance industries.

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PUM

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Abstract

The invention relates to flame-retardant polystyrene resin. The flame-retardant polystyrene resin comprises the following components in percentage by weight: 70%-75% of polystyrene, 3%-5% of polyethylene, 1-5% of an impact modifier, 0.1-0.6% of auxiliary agents, 13%-25% of a fire retardant, 3%-5% of a flame-retardant assistant agent and 0.7%-1% of a coupling agent.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a flame-retardant polystyrene resin. Background technique [0002] Polystyrene resin compositions are widely used in the field of office equipment housings such as printers, copiers, computers or household appliances due to their excellent processability, mechanical properties and heat resistance, and these products have an effect on the flame retardancy of materials. Higher requirements, styrene-based resins are flammable materials, and usually need to add flame retardants and additives to achieve the required flame retardant level. In actual use, the flame retardant auxiliary agent belongs to the field of inorganic flame retardants, and the amount is limited , if the amount used is too much, it will affect the impact resistance of styrene. [0003] Existing flame retardants include halogen flame retardants, organophosphorus flame retardants and inorganic flame retardants, amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L23/06C08L23/16C08K13/06C08K9/02C08K3/02C08K3/22C08K5/521C08K5/524
Inventor 黄忠波
Owner 黄忠波