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High-flame-retardance and high-toughness expandable polystyrene

A technology of expandable polystyrene and high toughness, which is applied in the field of foamed rubber and plastics, can solve the problems of reducing heat resistance and flame retardancy, improve heat resistance and flame corrosive effect

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 expense of reducing the original heat-resistant and flame-retardant properties 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 kind of toughness , foamed plastics with excellent flame retardant properties 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

[0017] A kind of highly flame-retardant and high-toughness expandable polystyrene proposed by the present invention, its raw materials include by weight: 95 parts of styrene, 30 parts of EPDM rubber, 25 parts of low-density polyethylene, 170 parts of water, over 0.3 parts of dibenzoyl oxide, 0.1 parts of tert-butyl peroxybenzoate, 0.2 parts of dicumyl peroxide, 5 parts of nano calcium silicate, 0.02 parts of silane coupling agent KH560, 4 parts of polyvinyl alcohol, cellulose 1 part of ether, 8 parts of pull-off powder, 0.05 parts of defoamer, 0.5 part of antioxidant, 0.4 part of flame retardant, and 12 parts of foaming agent.

Embodiment 2

[0019] The present invention proposes a high-flame-retardance and high-toughness expandable polystyrene, and its raw materials include by weight: 103 parts of styrene, 24 parts of EPDM rubber, 33 parts of polyethylene, 155 parts of water, diperoxide 0.38 parts of benzoyl, 0.06 parts of tert-butyl peroxybenzoate, 0.27 parts of dicumyl peroxide, 3 parts of nano calcium silicate, 0.035 parts of silane coupling agent KH560, 2.6 parts of polyvinyl alcohol, 2.5 parts of cellulose ether part, 4 parts of pulling powder, 0.12 part of defoamer, 0.3 part of antioxidant, 1.1 part of flame retardant, 8 parts of blowing agent; Wherein, blowing agent comprises by weight: 12 parts of normal pentane, isopentyl 5 parts of alkane; the flame retardant includes by weight: 15 parts of melamine phosphate, 9 parts of resorcinol bis(diphenyl phosphate), and 10 parts of melamine cyanuric acid.

Embodiment 3

[0021] A high flame-retardant high-toughness expandable polystyrene proposed by the present invention, its raw materials include by weight: 100 parts of styrene, 25 parts of EPDM rubber, 30 parts of low-density polyethylene, 160 parts of water, over 0.35 parts of dibenzoyl oxide, 0.08 parts of tert-butyl peroxybenzoate, 0.25 parts of dicumyl peroxide, 3.4 parts of nano calcium silicate, 0.03 parts of silane coupling agent KH560, 3 parts of polyvinyl alcohol, cellulose 2 parts of ether, 5 parts of powder, 0.1 part of defoamer, 0.35 part of antioxidant, 1 part of flame retardant, 10 parts of foaming agent; wherein, foaming agent comprises by weight: 13 parts of normal pentane, 4 parts of isopentane; the flame retardant includes by weight: 16 parts of melamine phosphate, 6 parts of resorcinol bis(diphenyl phosphate), and 12 parts of melamine cyanuric acid.

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PUM

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Abstract

The invention discloses high-flame-retardance and high-toughness expandable polystyrene which comprises the following raw materials in parts by weight: 95-105 parts of styrene, 20-30 parts of ethylene-propylene-diene monomer rubber, 25-35 parts of polyethylene, 150-170 parts of water, 0.3-0.4 parts of dibenzoyl peroxide, 0.05-0.1 parts of tert-butyl peroxybenzoate, 0.2-0.3 parts of dicumyl peroxide, 2-5 parts of nano calcium silicate, 0.02-0.04 part of a silane coupling agent KH560, 2-4 parts of polyvinyl alcohol, 1-3 parts of cellulose ether, 2-8 parts of nekal, 0.05-0.15 parts of a defoamer, 0.2-0.5 parts of an antioxidant, 0.4-1.2 parts of a flame retardant and 7-12 parts of a foamer. The high-flame-retardance and high-toughness expandable polystyrene disclosed by the invention is excellent in flame-retardant and heat-resistant performance, good in toughness and excellent in impact resistance.

Description

technical field [0001] The invention relates to the technical field of foamed rubber and plastics, in particular to a highly flame-retardant and high-toughness expandable polystyrene. 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 at the cost of reducing the original heat-resistant and flame-retardant properties 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 kind of toughness. , fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L23/16C08L23/06C08F112/08C08F2/20C08F2/26C08K13/06C08K9/06C08K3/26C08K5/3492C08K5/14C08K5/523C08K5/42C08J9/14
Inventor 彭其周
Owner 芜湖市京桥精密智造有限公司
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