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PES (polyether sulfone) toughened bisphthalonitrile resin material and preparation method thereof

A technology of diphthalonitrile resin and diphthalonitrile is applied in the field of biphenyl type polyethersulfone toughened diphthalonitrile resin material and preparation field thereof, and can solve problems such as unreported , to achieve the effect of improving interaction, high carbon residue rate and increasing tensile modulus

Inactive Publication Date: 2015-08-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN103602066A discloses a method for toughening and modifying polyethersulfone to bismaleimide; Chinese patent CN1923506A discloses a polyethersulfone toughened composite laminate and its preparation method, but no polyethersulfone A Report on Ethersulfone Toughened Diphthalonitrile Resin

Method used

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  • PES (polyether sulfone) toughened bisphthalonitrile resin material and preparation method thereof
  • PES (polyether sulfone) toughened bisphthalonitrile resin material and preparation method thereof
  • PES (polyether sulfone) toughened bisphthalonitrile resin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1. preparation PPSU-CN content is the toughened two phthalonitrile resin material of 4.63wt%

[0032]Add 6g of bisphthalonitrile oligomers, 0.18g of p-BAPS, 0.3g of biphenyl type polyethersulfone containing nitrile side groups and 30mL of NMP into a 100mL Erlenmeyer flask, and stir magnetically for 12h at room temperature to make All components are fully dissolved. Then, the mixed solution was filtered through a 200-mesh nylon filter cloth, poured on a 10cm in diameter, horizontal and clean oil-free aluminum sample pan, dried in an oven at 60-120°C for 48 hours, and the obtained samples were continuously dried in a high-temperature oven. Curing (curing conditions: 240°C for 5h, 260°C for 4h, 280°C for 4h, 300°C for 4h, 325°C for 4h, 350°C for 4h). Thus, a bisphthalonitrile resin material toughened by biphenyl polyethersulfone containing nitrile side groups is obtained. The mechanical properties and TGA test result data of the resin material sample strips ar...

Embodiment 2

[0033] Embodiment 2. preparation PPSU-CN content is the toughened bisphthalonitrile resin material of 8.85wt%

[0034] Except that the quality of the added nitrile side group biphenyl polyethersulfone is 0.6g, the preparation conditions and process of the toughened resin material are the same as in Example 1, and the mechanical properties and TGA test result data of the resin material sample are listed in In Table 1, the DMA curve see figure 1 .

Embodiment 3

[0035] Embodiment 3. preparation PPSU-CN content is the toughened bisphthalonitrile resin material of 12.71wt%

[0036] Except that the quality of the added nitrile side group biphenyl polyethersulfone is 0.9g, the preparation conditions and process of the toughened resin material are the same as in Example 1, and the mechanical performance test results of the resin material sample are listed in Table 1. middle.

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Abstract

The invention relates to a PES (polyether sulfone) toughened bisphthalonitrile resin material and belongs to the technical field of a thermosetting resin material. The disclosed nitrile-group and side-group containing PES toughened bisphthalonitrile resin material comprises the following components in part by mass: 5 to 20 parts of nitrile-group and side-group containing PES, 3 parts of curing agent 4,4minute-diaminodiphenyl ether sulfone and 100 parts of bisphthalonitrile low polymer. In the preparing process, the raw materials are mixed in part by mass and are stirred and blended in an NMP, filtrate is dried on a sample disk to obtain a sample sheet and then the sample sheet is heated and cured in the range of 240 to 350 DEG C. The nitrile-group and side-group containing PES toughened bisphthalonitrile resin prepared by the invention has higher mechanical intensity and toughness than common bisphthalonitrile resin and original heat resistance of a substrate is basically kept; a preparation method of the resin material disclosed by the invention has the characteristics of simple process, convenience for operation and suitability for industrial production.

Description

technical field [0001] The invention relates to the technical field of thermosetting resin materials, in particular to a biphenyl type polyethersulfone toughened bisphthalonitrile resin material and a preparation method thereof. Background technique [0002] Bisphthalonitrile resin is a high-performance thermosetting resin, which forms a cured product through nitrile group addition polymerization at high temperature, and its high temperature resistance is far superior to traditional epoxy, bismaleimide, etc. Thermosetting resins, coupled with their outstanding chemical stability, flame retardancy, excellent mechanical properties, moisture resistance and good processability, have broad application prospects in aerospace, ships, machinery, electronics and other fields. However, the high cross-linking density and rigid structure of bis-phthalonitrile resin make the internal stress of the cured resin large, so there are disadvantages such as brittleness, fatigue resistance, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/08C08L71/10C08G65/40
Inventor 杨延华赵楠刘韬苏宇于洪洋姜振华
Owner JILIN UNIV
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