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Production method of high-welding-performance expandable polystyrene (EPS)

A technology of expandable polystyrene and its production method, which is applied in the field of polystyrene production and processing, can solve the problems of poor fracture bending load performance, bending deformation performance, and poor fusion, and achieve fracture bending load performance and bending deformation performance Improve and improve the effect of fusion

Inactive Publication Date: 2017-09-05
安徽裕河新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polystyrene foam is used in the fields of cushioning packaging materials for electronic appliances, vegetable and fruit packaging boxes, and floating products on the sea. EPS particles can be pre-formed and formed to obtain sheet and module products. Poor inter-bondability, the products made of such EPS particles have poor fracture bending load performance and bending deformation performance.

Method used

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0019] The invention discloses a method for producing expandable polystyrene with high sintering performance. The specific steps are as follows:

[0020] 1) Add 100 parts of styrene, 0.2--0.4 parts of DCP, 0.5--0.7 parts of flame retardant, 0.15--0.3 parts of white oil, 0.05--0.1 parts of dodecylbenzenesulfonate Sodium acid, add in the reaction kettle respectively, stir 10--20 minutes;

[0021] 2) Then add 100--110 parts of pure water, 0.00001--0.00004 parts of trisodium phosphate, 0.08--0.12 parts of active calcium phosphate, 0.002--0.004 parts of emulsifier SDBS, and Yuanming powder 0.4--0.6 copies;

[0022] 3) Then add 0.3--0.45 parts of low-temperature initiator, 0.2--0.5 parts of high-temperature initiator, 0.001--0.005 parts of other initi...

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Abstract

The invention discloses a production method of high-welding-performance expandable polystyrene (EPS). The production method includes the steps of firstly, adding styrene, DCP, flame retardant, white oil and sodium dodecyl benzene sulfonate in a reaction kettle; secondly, sequentially adding purified water, trisodium phosphate, active calcium phosphate, emulsifier SDBS and anhydrous sodium sulfate; thirdly, adding a low-temperature initiator, a high-temperature initiator, other initiators and nucleating agent polyethylene wax; fourthly, feeding steam into the jacket of the reaction kettle to heat the materials in the reaction kettle from room temperature to 88-91 DEG C, and performing constant-temperature granulation; fifthly, adding calcium phosphate and ash calcium powder; sixthly, adding a foaming agent, and feeding steam into the jacket of the reaction kettle to perform slow temperature rising; seventhly, heating to 123-127 DEG C, and performing constant-temperature reaction for 4.5-5.5 hours; eighthly, cooling to 45-50 DEG C, and discharging. The production method has the advantages that boards or module products can be produced by using the flame-retardant EPS particles produced by the method as the raw material through pre-expansion and forming, good welding performance among the EPS resin particles is achieved, and product fracture and bending load performance and product bending deformation performance can be increased evidently.

Description

technical field [0001] The invention relates to a production method of expandable polystyrene with high fusing performance, which is applied in the technical field of polystyrene production and processing. Background technique [0002] Polystyrene foam is used in the fields of cushioning packaging materials for electronic appliances, vegetable and fruit packaging boxes, and floating products on the sea. EPS particles can be pre-formed and formed to obtain sheet and module products. The fusion bondability between them is poor, and the products made of such EPS particles as raw materials have poor fracture bending load performance and bending deformation performance. Contents of the invention [0003] In order to solve the above-mentioned problems, the present invention discloses a production method of expandable polystyrene with high sinterability, which consists of the following steps: [0004] 1) Add 100 parts of styrene, 0.2--0.4 parts of DCP, 0.5--0.7 parts of flame re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08F2/18C08F2/44C08J9/20C08L25/06
CPCC08F112/08C08F2/18C08F2/44C08J9/20C08J2325/06
Inventor 刘以荣
Owner 安徽裕河新材料有限公司
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