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PA 6 (polyamide 6)/EVA (ethylene-vinyl acetate)/OMMT (organic montmorillonite) super-toughness vibration damping material and manufacturing method thereof

A shock-proof material, C-OMMT technology, applied in PA6/EVA/OMMT super-tough damping shock-proof material and its manufacturing field, can solve problems such as inability to peel off OMMT, poor mechanical properties of materials, etc., achieve good strength and improve comprehensive mechanical properties , good dispersion effect

Active Publication Date: 2014-05-21
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PA6 and EVA are materials with very different polarities. If OMMT and its blend are directly melt-extruded, OMMT cannot be peeled off, resulting in poor mechanical properties of the material.

Method used

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  • PA 6 (polyamide 6)/EVA (ethylene-vinyl acetate)/OMMT (organic montmorillonite) super-toughness vibration damping material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Material 1 is prepared by using the material described in the present invention and its preparation method, and the specific steps are as follows:

[0036]1) Glycidyl methacrylate GMA, dicumyl peroxide DCP are dissolved in the acetone of 3~4 times of volume (referring to the sum of GMA and DCP volume) with the ratio of 1: 0.1 by weight fraction, stir After the acetone is basically volatilized, pour it into EVA, stir it evenly, and dry it; extrude the strip-shaped graft EVA-GMA with a twin-screw extruder at 160-170 ° C, the screw speed is 50r / min, and the cooling of the extruded product The method is water cooling; the weight percentage of GMA in EVA-GMA is 2.3%

[0037] 2) ethylene-vinyl acetate copolymer EVA grafted glycidyl methacrylate EVA-GMA, end groups in step 1 are the organic montmorillonite C-OMMT of two 18-alkyltrimethylammonium chlorides in vacuum Dry in an oven at 60°C for 6 hours;

[0038] 3) Mix the dried reactant in step 2 by weight fraction EVA-GMA:C-O...

Embodiment 2

[0042] Material 2 is prepared by using the material described in the present invention and its preparation method, and the specific steps are as follows:

[0043] 1) Glycidyl methacrylate GMA, dicumyl peroxide DCP are dissolved in the acetone of 3~4 times of volume (referring to the sum of GMA and DCP volume) with the ratio of 1: 0.1 by weight fraction, stir After the acetone is basically volatilized, pour it into EVA, stir it evenly, and dry it; extrude the strip-shaped graft EVA-GMA with a twin-screw extruder at 160-170 ° C, the screw speed is 50r / min, and the cooling of the extruded product The method is water cooling; the weight percentage of GMA in EVA-GMA is 2.3%

[0044] 2) ethylene-vinyl acetate copolymer EVA grafted glycidyl methacrylate EVA-GMA, end groups in step 1 are the organic montmorillonite C-OMMT of two 18-alkyltrimethylammonium chlorides in vacuum Dry in an oven at 60°C for 6 hours;

[0045] 3) Mix the dried reactant in step 2 by weight fraction EVA-GMA:C-...

Embodiment 3

[0049] The material 3 is prepared by using the material of the present invention and its preparation method, and the specific steps are as follows:

[0050] 1) Glycidyl methacrylate GMA, dicumyl peroxide DCP are dissolved in the acetone of 3~4 times of volume (referring to the sum of GMA and DCP volume) with the ratio of 1: 0.1 by weight fraction, stir After the acetone is basically volatilized, pour it into EVA, stir it evenly, and dry it; extrude the strip-shaped graft EVA-GMA with a twin-screw extruder at 160-170 ° C, the screw speed is 50r / min, and the cooling of the extruded product The method is water cooling; the weight percentage of GMA in EVA-GMA is 2.3%

[0051] 2) ethylene-vinyl acetate copolymer EVA grafted glycidyl methacrylate EVA-GMA, end groups in step 1 are the organic montmorillonite C-OMMT of two 18-alkyltrimethylammonium chlorides in vacuum Dry in an oven at 60°C for 6 hours;

[0052] 3) The dried reactants in step 2 are mixed according to the ratio of EV...

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Abstract

The invention provides a PA 6 (polyamide 6) / EVA (ethylene-vinyl acetate) / OMMT (organic montmorillonite) super-toughness vibration damping material and a manufacturing method thereof, belonging to the field of an organic high-molecular compound, and preparation and chemical processing thereof. On the basis of the PA 6 and EVA elastomer, GMA (glycidyl methacrylate) is used for compatibilization, and the OMMT is used for reinforcement, thereby enhancing the comprehensive mechanical properties and vibration damping property of the blend. The preparation method comprises the following steps: carrying out melt extrusion and granulation on the EVA-GMA and C-OMMT in a weight ratio of 100:(0-3), wherein the granules are used as the master batch; and carrying out melt extrusion and granulation on the EVA-GMA / C-OMMT master batch and PA6 in a weight ratio of 100:(50-100). The elongation at break of the material provided by the invention is up to 292%, the tensile strength and bending strength are respectively 51 Mpa and 60 Mpa, the free beam impact strength is 71 KJ / m<2>, the comprehensive properties are excellent, and the material can be used for support facilities in transformer stations.

Description

technical field [0001] The invention belongs to the field of organic polymer compounds, their preparation and chemical processing, and specifically relates to a PA6 / EVA / OMMT super-tough damping and shockproof material used for substation support equipment and a manufacturing method thereof. Background technique [0002] At present, the damage of substation power equipment in earthquake disasters is relatively serious. There are mainly two kinds of anti-seismic measures in China. The first is to strengthen the strength and rigidity of buildings and other power facilities to resist earthquakes. The second is to gradually pay attention. An anti-seismic measure, that is, the use of shock-isolation and shock-absorbing measures, the shock-absorbing device first enters the energy dissipation or energy consumption state under the action of the earthquake, and consumes a large amount of earthquake energy, thereby avoiding the damage of power facilities. Under the premise that the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L77/02C08K9/04C08K3/34B29B9/06B29C47/92B29C48/92
CPCB29C48/911B29C48/04B29C48/91B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 陈川朱全军韩钰陈新聂京凯马光祝志祥杨富尧李现兵
Owner CHINA ELECTRIC POWER RES INST