High-performance polystyrene toughened foam material and preparation method thereof

A technology of polystyrene and foam materials, which is applied in the field of polystyrene materials and preparation technology, can solve the problems of poor impact toughness, etc., and achieve the effects of good impact capacity, obvious advantages, and a wide range of applications

Inactive Publication Date: 2021-02-05
深圳市方科马新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a high-performance polystyrene toughened foam material and its preparation method, which overcomes the deficiencies of the prior art and can effectively solve the problem of poor impact toughness of existing polystyrene foam materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: The high-performance polystyrene toughened foam material is obtained by the following preparation method:

[0022] Combine 220 μg epoxy resin (oil phase toughening agent), 150 μg carboxyl liquid nitrile rubber (oil phase toughening agent), 900 μL styrene (oil phase reaction monomer), 203 μL triacryl isocyanurate ( Oil phase cross-linking agent) and 17mg azobisisobutyronitrile (initiator) were added to the test tube and mixed well, 1402μL of 0.15μg / μL sodium hydroxide aqueous solution (dispersed phase) was added, and shaken on a vortex shaker evenly , to form a homogeneous, inverted and non-flowing gel emulsion, seal the mouth of the test tube containing the gel emulsion, react in a water bath at 55 °C for 10 hours, and dry it in a constant temperature oven at 100 °C for 10 hours to obtain high-performance polystyrene Tough foam.

[0023] The high-performance polystyrene toughened foam material obtained in Example 1 has a compressive strength of 30.5 MPa, ...

Embodiment 2

[0024] Embodiment 2: The high-performance polystyrene toughened foam material is obtained by the following preparation method:

[0025] Step 1, preparation of soft template: 2g polysulfide rubber (oil phase toughening agent), 100g methyl methacrylate (oil phase reaction monomer), 6g hexanediol dimethacrylate (oil phase crosslinking agent) Mix with 0.1 g of diisopropyl peroxydicarbonate (initiator), stir evenly, and then add the dispersed phase to emulsify to obtain a gel emulsion;

[0026] Step 2: Polymerization of the soft template: heating the gel emulsion obtained in step 1 to initiate a polymerization reaction, and drying in a constant temperature oven at 100° C. for 10 hours after the reaction is completed to obtain a high-performance polystyrene toughened foam material; polymerization reaction conditions: polymerization temperature 80 ℃, the polymerization time is 12h.

[0027] The high-performance polystyrene toughened foam material obtained in Example 2 has a compress...

Embodiment 3

[0028] Embodiment 3: The high-performance polystyrene toughened foam material is obtained by the following preparation method:

[0029] Step 1, preparation of soft template: 1g polysulfone and α-cyanoacrylate (oil phase toughening agent), 100g methyl methacrylate (oil phase reaction monomer), 3g pentaerythritol tetraacrylate (oil phase crosslinking agent) agent) and 0.2g of dicumyl peroxide (initiator), mix well, and then add the dispersed phase to emulsify to obtain a gel emulsion;

[0030] Step 2: Polymerization of the soft template: heating the gel emulsion obtained in step 1 to initiate a polymerization reaction, and drying in a constant temperature oven at 100° C. for 10 hours after the reaction is completed to obtain a high-performance polystyrene toughened foam material; polymerization reaction conditions: polymerization temperature 90 ℃, the polymerization reaction time is 15h.

[0031] The high-performance polystyrene toughened foam material obtained in Example 3 has...

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Abstract

The invention relates to the technical field of polystyrene materials and preparation processes, in particular to a high-performance polystyrene toughened foam material and a preparation method thereof. The preparation system of the high-performance polystyrene toughened foam material comprises a continuous phase and a dispersed phase, the continuous phase comprises an oil-phase reaction monomer,an oil-phase cross-linking agent, an oil-phase toughening agent and an initiator, and the dispersed phase and the continuous phase do not react and are immiscible. On the premise that more than 95% ofthe prepared high-performance polystyrene toughened foam material is of a closed-cell structure, the high-performance polystyrene toughened foam material can keep good impact capacity when being impacted, and the possibility of brittle fracture is small so that the toughening effect of the high-performance polystyrene toughened foam material is better, the application range and field of the high-performance polystyrene toughened foam material are wider, and advantages of the high-performance polystyrene toughened foam material are more obvious.

Description

technical field [0001] The invention relates to the technical field of polystyrene materials and preparation techniques, and relates to a high-performance polystyrene toughened foam material and a preparation method thereof. Background technique [0002] Lightweight and high-strength polystyrene foam is a newly developed variety in recent years, due to its high strength, high modulus, excellent chemical resistance, wear resistance, excellent adhesion, wear resistance, electrical insulation, chemical It is one of the most widely used matrix materials in polymer composites. It is used in wind power generation, offshore oil exploration, automobile, and military security fields. However, in more demanding application fields and further research, it is found that polystyrene foam materials have high cross-linking density, so they have brittleness and fatigue resistance. , poor impact toughness and other shortcomings, among which the brittleness is more obvious. Although the mech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/08C08L63/00C08L13/00C08J9/00C08F212/08C08F226/06C08F2/44C08L33/12C08L81/04C08F220/14C08F222/14C08L81/06C08F220/34C08L53/02C08K3/22
CPCC08J9/0061C08F212/08C08F220/14C08F2/44C08J9/0066C08J2325/08C08J2463/00C08J2413/00C08J2205/052C08J2333/12C08J2481/04C08J2481/06C08J2453/02C08F226/06C08F222/102C08F220/34C08F222/104
Inventor 田哲周彦鹏李凯孔晶晶
Owner 深圳市方科马新材料有限公司
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