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Modified polystyrene resin foam plastic

A technology of polystyrene resin and foamed plastic, which is applied in the field of plastics, can solve the problems of reducing the outstanding heat resistance of polystyrene resin, and achieve the effects of improving fluidity, increasing service life, and good toughness

Inactive Publication Date: 2015-05-06
芜湖市京桥精密智造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, foamed plastics have been widely used in automobiles, household appliances, ships, air conditioners and mechanical products due to their good performance. For the wider application of foamed plastics, polystyrene resin is often used to prepare foamed plastics as a typical representative of thermosetting resins, but like other thermosetting resins, brittleness is an inherent shortcoming of polystyrene resins, and some effective Toughening methods have been developed one after another, but often at the cost of reducing the original outstanding heat resistance of polystyrene resins to varying degrees. In order to meet the increasing demand for new high-performance resins in modern and future industries, how to prepare a toughness, Foamed plastics with excellent heat resistance have become a technical problem to be solved at present

Method used

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Examples

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Effect test

Embodiment 1

[0016] A kind of modified polystyrene resin foamed plastic that the present invention proposes, its raw material comprises by weight: polystyrene resin 30 parts, modified bismaleimide 30 parts, kaolin 10 parts, polyacrylonitrile-based carbon fiber 6 parts, 1 part of glass fiber, 32 parts of mullite, 10 parts of diisononyl phthalate, 2 parts of phosphite, 0.5 part of silane coupling agent, 1 part of microcrystalline paraffin, polyphenol antioxidant 10100.5 part, 0.1 part of polyethylene glycol methacrylic acid interpolymer, 1 part of blowing agent; wherein, blowing agent comprises by weight: 10 parts of azodicarbonamide, 2 parts of biurea and 0.5 part of calcium carbonate;

[0017] During the preparation of the modified bismaleimide, add 5 parts of silane coupling agent to 20 parts of deionized water by weight and stir at room temperature for 40 minutes, heat up to 40°C and stir for 3 hours, then put it in a vacuum drying oven and dry for 2 hours. The drying temperature is 70°C...

Embodiment 2

[0019] A kind of modified polystyrene resin foamed plastic that the present invention proposes, its raw material comprises by weight: polystyrene resin 40 parts, modified bismaleimide 20 parts, kaolin 15 parts, polyacrylonitrile-based carbon fiber 3 parts, 3 parts of glass fiber, 25 parts of mullite, 20 parts of diisononyl phthalate, 1 part of phosphite, 1.3 parts of silane coupling agent, 0.5 parts of microcrystalline paraffin, polyphenol antioxidant 10101 Part, 0.05 part of polyethylene glycol methacrylic acid copolymer, 5 parts of blowing agent;

[0020] In the preparation process of the modified bismaleimide, add 2 parts of silane coupling agent to 30 parts of deionized water by weight and stir at room temperature for 20 minutes, raise the temperature to 60 °C and stir for 1 hour, then put it in a vacuum drying oven and dry it for 5 hours. The drying temperature is 50°C to obtain a preform. Add 30 parts of bismaleimide, 10 parts of diallyl bisphenol A and 14 parts of deion...

Embodiment 3

[0022] A modified polystyrene resin foamed plastic proposed by the present invention, its raw materials include by weight: 35 parts of polystyrene resin, 26 parts of modified diallyl bisphenol A, 13 parts of kaolin, polyacrylonitrile base 4.2 parts of carbon fiber, 1.8 parts of glass fiber, 29 parts of mullite, 13 parts of diisononyl phthalate, 1.5 parts of phosphite, 0.8 parts of masterbatch, 0.72 parts of microcrystalline paraffin, polyphenol antioxidant 10100.93 Parts, 0.07 parts of polyethylene glycol methacrylic acid interpolymer, 2.4 parts of blowing agent; Wherein, blowing agent comprises by weight: 13 parts of azodicarbonamide, 1.5 parts of biurea and 0.8 part of calcium carbonate;

[0023] During the preparation of the modified bismaleimide, add 4 parts of silane coupling agent to 27 parts of deionized water by weight and stir at room temperature for 34 minutes, heat up to 52 °C and stir for 2 hours, then put it in a vacuum drying oven and dry for 4 hours. The drying ...

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PUM

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Abstract

The invention discloses a modified polystyrene resin foam plastic which comprises the following components in parts by weight: 30-40 parts of polystyrene resin, 20-30 parts of modified bismaleimide, 10-15 parts of kaolin, 3-6 parts of polyacrylonitrile-based carbon fibers, 1-3 parts of glass fibers, 25-32 parts of mullite, 10-20 parts of diisononyl phthalate, 1-2 parts of phosphate, 0.5-1.3 parts of a silane coupling agent, 0.5-1 part of microcrystalline wax, 0.5-1 part of a polyphenolic antioxidant 1010, 0.05-0.1 parts of a polyethylene glycol-methylacrylic acid copolymer and 1-5 parts of a foamer. The modified polystyrene resin foam plastic disclosed by the invention is good in toughness and excellent in heat resistance.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a modified polystyrene resin foamed plastic. Background technique [0002] At present, foamed plastics have been widely used in automobiles, household appliances, ships, air conditioners and mechanical products due to their good performance. For the wider application of foamed plastics, polystyrene resin is often used to prepare foamed plastics as a typical representative of thermosetting resins, but like other thermosetting resins, brittleness is an inherent shortcoming of polystyrene resins, and some effective Toughening methods have been developed one after another, but often at the cost of reducing the original outstanding heat resistance of polystyrene resins to varying degrees. In order to meet the increasing demand for new high-performance resins in modern and future industries, how to prepare a toughness, Foamed plastics with excellent heat resistance have become a tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L79/08C08L91/06C08L23/08C08K13/06C08K9/06C08K7/06C08K7/14C08K3/34C08K5/12C08K5/524C08J9/10C08J9/08
Inventor 彭其周
Owner 芜湖市京桥精密智造有限公司
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