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High-strength plastic for capacitor shell and preparation method of high-strength plastic

A high-strength plastic and capacitor technology, applied in the field of capacitor shell processing, can solve the problems of affecting the life of capacitors, poor installation convenience, and high cost of aluminum shells, and achieve the effects of improving compatibility, reducing brittleness, and improving tensile strength.

Pending Publication Date: 2021-09-07
TONGLING CHANGMAN PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, most of the shells used outside the capacitor are plastic shells and aluminum shells. The strength and safety of the aluminum shell are higher than that of the plastic shell, but the cost of the aluminum shell itself is higher, and the installation convenience is worse than that of the plastic shell. The capacitor shell for daily use mostly plastic case
[0003] Existing plastic capacitor shells are generally made of polymers such as ABS plastic and polypropylene. However, due to the limitation of the plastic material itself, most of the shells prepared by them are of low strength, and the shells are easy to be damaged during use, which affects the life of the capacitor.

Method used

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  • High-strength plastic for capacitor shell and preparation method of high-strength plastic
  • High-strength plastic for capacitor shell and preparation method of high-strength plastic

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A high-strength plastic for a capacitor shell, the high-strength plastic for the capacitor shell is made of the following raw materials in parts by weight: 25 parts of ABS resin, 25 parts of polycarbonate, 10 parts of polystyrene, 12 parts of modified polyurethane resin, 1 part of methyl methacrylate-butadiene-styrene terpolymer, 3 parts of modified carbon fiber, 2 parts of vinyl tris(β-methoxyethoxy)silane, 2 parts of highly dispersed nano calcium carbonate, 1 part of isosorbide octanoate, 2 parts of compatibilizer, 1 part of antioxidant, 1 part of flame retardant, 1 part of toughening agent.

[0029] The modified polyurethane resin is obtained by adding polyurethane mixed with maleic anhydride into an acetone solvent at a mass ratio of 6:1 for blending, and then drying to remove the solvent to obtain the modified modified polyurethane resin.

[0030] The preparation of described modified carbon fiber comprises the following steps:

[0031] (1) Acid treatment of carbo...

Embodiment 2

[0040] A high-strength plastic for a capacitor shell, the high-strength plastic for the capacitor shell is made of the following raw materials in parts by weight: 30 parts of ABS resin, 30 parts of polycarbonate, 16 parts of polystyrene, 16 parts of modified polyurethane resin, 3 parts of methyl methacrylate-butadiene-styrene terpolymer, 6 parts of modified carbon fiber, 4 parts of vinyl tris (β-methoxyethoxy) silane, 5 parts of highly dispersed nano calcium carbonate, two 3 parts of isosorbide octanoate, 4 parts of compatibilizer, 3 parts of antioxidant, 2 parts of flame retardant, 2 parts of toughening agent.

[0041] The modified polyurethane resin is obtained by adding polyurethane mixed with maleic anhydride into an acetone solvent at a mass ratio of 6:1 for blending, and then drying to remove the solvent to obtain the modified modified polyurethane resin.

[0042] The preparation of described modified carbon fiber comprises the following steps:

[0043] (1) Acid treatme...

Embodiment 3

[0052] A high-strength plastic for a capacitor shell, the high-strength plastic for the capacitor shell is made of the following raw materials in parts by weight: 28 parts of ABS resin, 28 parts of polycarbonate, 13 parts of polystyrene, 14 parts of modified polyurethane resin, 2 parts of methyl methacrylate-butadiene-styrene terpolymer, 4 parts of modified carbon fiber, 3 parts of vinyl tris (β-methoxyethoxy) silane, 3.5 parts of highly dispersed nano calcium carbonate, two 2 parts of isosorbide octanoate, 3 parts of compatibilizer, 2 parts of antioxidant, 1.5 parts of flame retardant, 1.5 parts of toughening agent.

[0053] The modified polyurethane resin is obtained by adding polyurethane mixed with maleic anhydride into an acetone solvent at a mass ratio of 6:1 for blending, and then drying to remove the solvent to obtain the modified modified polyurethane resin.

[0054] The preparation of described modified carbon fiber comprises the following steps:

[0055] (1) Acid t...

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Abstract

The invention provides high-strength plastic for a capacitor shell and a preparation method of the high-strength plastic, and relates to the technical field of capacitor shell processing. The high-strength plastic for the capacitor shell is prepared from the following raw materials: ABS resin, polycarbonate, polystyrene, modified polyurethane resin, a methyl methacrylate-butadiene-styrene terpolymer, modified carbon fibers, vinyl tri (beta-methoxyethoxy) silane, high-dispersion nano calcium carbonate, dicaprylic acid isosorbide, a compatilizer, an antioxidant, a flame retardant, a toughening agent and the like. The preparation method comprises the steps of base material modification, base material mixing, raw material mixing, multi-stage mixing and the like. The defects in the prior art are overcome, the bending strength and impact strength of the capacitor plastic shell are effectively improved by blending multiple resin materials and modified materials, the capacitor shell is effectively prevented from being damaged by collision in the using process, and the service life of the capacitor is prolonged.

Description

technical field [0001] The invention relates to the technical field of capacitor shell processing, in particular to a high-strength plastic for a capacitor shell and a preparation method thereof. Background technique [0002] Capacitors are one of the electronic components widely used in electronic equipment, and are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control circuits, etc. Capacitors are the basic products of electronics, so the requirements for capacitors are getting higher and higher. Generally, most of the shells used outside the capacitor are plastic shells and aluminum shells. The strength and safety of the aluminum shell are higher than that of the plastic shell, but the cost of the aluminum shell itself is higher, and the installation convenience is worse than that of the plastic shell. The capacitor shell for daily use Most of them are mainly plastic shells. [0003] Existing plastic capacitor shells are gener...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L69/00C08L25/06C08L75/04C08L51/04C08K9/02C08K7/06C08K5/1535C08K9/04C08K3/04
CPCC08L55/02C08L69/00C08L2205/035C08L2203/20C08L25/06C08L75/04C08L51/04C08K9/02C08K7/06C08K5/1535C08K9/08C08K3/042
Inventor 姚昌满姚曹曹应梅
Owner TONGLING CHANGMAN PLASTIC CO LTD