Composite enhanced baffle containing glass fibers and preparation method thereof

A glass fiber composite and reinforced technology, used in electrical components, circuits, battery pack components, etc., can solve problems such as fragile or cracked, low strength, brittle texture, etc., to prevent premature failure, long life, and pore size. small effect

Active Publication Date: 2011-08-31
LUOYANG GEBAO DIAPHRAGM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are also partitions made of PVC resin at home and abroad, their texture is brittle, their strength is low, and they are easily broken or broken during transportation, assembly and use, and the above problems have not been solved.

Method used

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  • Composite enhanced baffle containing glass fibers and preparation method thereof
  • Composite enhanced baffle containing glass fibers and preparation method thereof
  • Composite enhanced baffle containing glass fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 35.0g of dry PVC resin powder according to the weight ratio, and the specific surface area is 150m 2 / g SiO 2 55 g of particles, 9.9 g of medium-alkali glass fiber wool with a diameter of 1 μm and a length of 0.5 mm, and 0.1 g of carbon black. Put the weighed raw materials in the reaction kettle, add acetone under the condition of stirring to make the system mix uniformly, and control the viscosity of the system to 200.0 Pa.s to obtain the mixture A. The above-mentioned mixture A was formed by extruding and calendering at room temperature to make a thin sheet with a thickness of 0.1 mm. After molding, it is leached in warm water at 40°C for 2 minutes, and then dried in a drying tunnel at 40°C for 40 minutes to obtain a glass fiber composite reinforced separator. The microscopic morphology of the separator surface is as follows figure 1 As shown, the glass fibers are evenly distributed in the porous structure, and the material has high porosity and uniform pore ...

Embodiment 2

[0034] Weigh 89.0g of dry PVC resin powder according to the weight ratio, and the specific surface area is 200m 2 / g SiO 2 9 g of particles, 1.9 g of medium-alkali glass fiber cotton with a diameter of 10 μm and a length of 5 mm, and 0.1 g of graphite. Put the weighed raw materials in the reaction kettle, add tetrahydrofuran under stirring conditions to make the system uniformly mixed, and control the viscosity of the system to 10.0 Pa.s to obtain the mixture A. The above-mentioned mixture A was formed by extruding and calendering at room temperature to make a thin sheet with a thickness of 0.5 mm. After molding, it is leached in warm water at 30°C for 10 minutes, and then dried in a drying tunnel at 60°C for 20 minutes to obtain a glass fiber composite reinforced separator. The microscopic morphology of the separator surface is as follows figure 2 As shown, the glass fibers are uniformly distributed in the porous structure, and the material has high porosity and uniform p...

Embodiment 3

[0036] Weigh 52g of dry PVC resin powder according to the weight ratio, and the specific surface area is 200m 2 / g SiO 242.1 g of particles, 0.9 g of non-alkali glass fiber cotton with a diameter of 5 μm and a length of 2.5 mm, and 5.0 g of carbon black. Put the weighed raw materials in the reaction kettle, add dimethyl sulfoxide under stirring condition to make the system evenly mixed, and control the viscosity of the system to 102.3Pa.s to obtain the mixture A. The above-mentioned mixture A was formed by extruding and calendering at room temperature to make a thin sheet with a thickness of 1.0 mm. After molding, it is leached in warm water at 35°C for 5 minutes, and then dried in a drying tunnel at 56°C for 34 minutes to obtain a glass fiber composite reinforced separator. The microscopic morphology of the separator surface is as follows image 3 As shown, the glass fibers are evenly distributed in the porous structure, and the material has high porosity and uniform pore ...

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Abstract

The invention relates to a baffle for an accumulator and particularly discloses a composite enhanced baffle containing glass fibers and a preparation method thereof. The preparation method disclosed by the invention comprises the following steps: (1) weighing each raw material in proportion, adding the raw materials to a reaction kettle, adding a solvent while stirring so as to enable the system to be uniformly mixed, and controlling the viscosity of the system to be 10.0-200.0Pa.s so as to obtain s mixture 1; and (2) molding the mixture 1 through normal-temperature extrusion and calendaring processes, and digesting through warm water and drying to obtain the composite enhanced baffle containing glass fibers. Because the glass fibers exist, the mechanical strength of the baffle is effectively improved, the pore structure is optimized, and the wettability is improved. The baffle disclosed by the invention is used for assembling a battery, thereby optimizing the oxygen circulation in the battery, preventing the generation of lead dendritic crystals, improving the capacity of the battery, reducing the internal resistance of the battery, avoiding the premature failure of the battery, effectively improving the performance of the battery and obviously prolonging the service life of the battery.

Description

technical field [0001] The invention relates to a separator for accumulators, in particular to a glass fiber composite reinforced separator. Background technique [0002] The separator is an important component of the lead-acid battery, known as the "third electrode". It is placed between the positive and negative plates of the battery, which can prevent the short circuit of the positive and negative electrodes in the electrolyte, and at the same time ensure that the electrolyte is It has good electrical conductivity between the positive and negative electrodes, and also has the functions of reducing the bending of the plate, preventing the active material of the positive electrode from falling off, good liquid retention, and providing gas channels. As lead-acid batteries are used more and more widely, the performance of the separator, one of the four major components of lead-acid batteries, directly affects the quality of lead-acid batteries. [0003] A high-quality separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/16
CPCY02E60/12Y02E60/10
Inventor 石光周荣方陈红雨
Owner LUOYANG GEBAO DIAPHRAGM CO LTD
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