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A polyvinyl chloride composition for battery case and preparation method thereof

A polyvinyl chloride and storage battery technology, which is applied to battery components, circuits, electrical components, etc., can solve the problems of low impact strength, high cost, and large amount of heat-resistant modifier, and achieve strong anti-oxidative aging performance, The effect of superior impact performance and superior heat resistance

Active Publication Date: 2015-12-09
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improve the heat resistance of polyvinyl chloride resin, but the amount of heat-resistant modifier is large, the cost is high, and the impact strength is low

Method used

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  • A polyvinyl chloride composition for battery case and preparation method thereof
  • A polyvinyl chloride composition for battery case and preparation method thereof
  • A polyvinyl chloride composition for battery case and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Embodiment preparation method:

[0036] (1) Mixing of raw materials: Weigh the materials of Examples 3-8 according to the ratio of raw materials, then add them to a high-speed mixer and mix until the mixing temperature is 115°C, put the materials into a low-speed mixer, and wait for the temperature of the materials to cool to 40°C Time to discharge.

[0037] (2) Special material granulation process: The mixed material is granulated by twin-screw, and the process parameters are set as follows:

[0038] Table 5: Process parameters of twin-screw granulator

[0039]

zone 1

Zone 2

District 3

District 4

District 5

nose

Extruder temperature (°C)

120

130

135

140

145

145

[0040] The preparation method of embodiment 1, 2 is the same as embodiment 3~8, and difference is that mixing temperature is 100 ℃, and discharge temperature is 37 ℃;

[0041] The preparation method of embodiment 9,10 is the same as emb...

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PUM

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Abstract

The invention discloses a polyvinyl chloride composition for a battery case and a preparation method thereof, belonging to the field of material science, and relates to an injection-molded heat-resistant polyvinyl chloride composition and a preparation method thereof, and the composition is suitable for producing a battery case. The present invention adopts PVC resin with low degree of polymerization, combined with specific composite heat-resistant modifier, size stabilizer and full ester impact modifier to produce a polyvinyl chloride with higher Vicat softening temperature and superior impact performance combination. Compared with the prior art, the invention adopts a heat-resistant modifier with a specific composition combined with a size stabilizer to improve the heat-resistant performance of the PVC resin, so that the composition of the invention has a higher Vicat softening temperature. The full ester impact modifier is used to ensure that the material has high impact resistance and avoid reducing the light aging resistance.

Description

technical field [0001] The invention discloses a polyvinyl chloride composition for battery casings and a preparation method thereof, belonging to the field of material science, and relates to an injection-molded heat-resistant polyvinyl chloride composition and a preparation method thereof, and the composition is suitable for producing battery casings. Background technique [0002] With the rapid development of the automobile and electric vehicle industry, the battery consumption is increasing. The service conditions of the battery require that the outer casing of the material must have a high heat distortion temperature, flame retardancy and light and heat aging resistance. At present, the main materials of the battery casing are polypropylene and ABS resin. Due to the poor flame retardancy of polypropylene and ABS resin, flame retardant modification must be carried out during use. Polyvinyl chloride resin itself has flame retardant properties, but its heat distortion tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L33/10C08L25/16C08L35/06C08K13/02C08K3/34C08K3/04C08K5/134B29C47/92B29B9/06H01M2/02B29C48/92H01M50/121
CPCY02E60/10
Inventor 贾小波张新华张学明张桦
Owner CHINA PETROLEUM & CHEM CORP