PP plastic shell adhesive for storage battery and preparation method thereof

A kind of plastic case glue and storage battery technology, which is applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems that cannot meet the sealing effect of PP plastic case batteries, PP plastic case is difficult to achieve heat sealing, etc., and achieve excellent Processability and mechanical properties, satisfying the sealing effect, and the effect of good instantaneous high temperature performance

Active Publication Date: 2020-06-16
XIAMEN MATE HI TECH NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most popular is to use epoxy resin to seal, while car batteries and some motorcycle batteries basically retain the heat sealing process. After all, they are machine-operated, with a high degree of automation, and there is no need to add foreign substances as a help. Therefore, ABS is also trying to use heat sealing technology, but the internal space of VRLA battery is limited and it is difficult to realize heat sealing technology for a while
[0004] Chinese Patent Publication No.: CN107815280A discloses a formula of epoxy resin glue, the key point of the technical scheme is that it includes the following substances in parts by weight: epoxy resin: 260-275 parts; curing agent: 2-3 parts; solvent: 25 parts ~35 parts; magnesium hydroxide: 45~55 parts; silica powder: 100~115 parts; coupling agent: 0.1~1.5 parts; curing agent accelerator: 0.05~0.20 parts; curing agent for epoxy resin in this patent Including dicyandiamide, the curing agent accelerator includes 2-methylimidazole, and organic solvents are used. These toxic and irritating substances cause allergic dermatitis among operators when using epoxy resin glue.
The hot melt adhesive also cannot be well fused with PP plastic, and cannot meet the sealing effect of PP plastic case batteries.

Method used

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  • PP plastic shell adhesive for storage battery and preparation method thereof
  • PP plastic shell adhesive for storage battery and preparation method thereof
  • PP plastic shell adhesive for storage battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Preparation of battery PP plastic case adhesive

[0040] Raw materials: see Table 1.

[0041] Preparation:

[0042] (1) Dehumidification and drying of raw materials Before production, first use microwave heating to dehumidify, the temperature is 80-90 ° C, and the time is 2-3 hours;

[0043] (2) mixing thermoplastic polyester elastomer, polyethylene, polypropylene, polyisobutylene, polystyrene, and antiaging agent raw materials with a mixer for use;

[0044] (3) Add the uniformly stirred mixture into a twin-screw extruder, and granulate by blending and extruding at a temperature of 170-200°C to prepare the required hot-melt adhesive particles, which is the battery PP Plastic case adhesive.

[0045] The consumption (wt %) table of each embodiment of table 1 and comparative example

[0046]

[0047]

Embodiment 2

[0048] Example 2: Preparation of battery PP plastic case adhesive

[0049] Raw materials: see Table 1.

[0050] Preparation:

[0051] (1) Dehumidification and drying of raw materials Before production, first use steam or other heating and dehumidification methods, the temperature is 80-90 ° C, and the time is 2-3 hours;

[0052] (2) mixing thermoplastic polyester elastomer, polyethylene, polypropylene, polyisobutylene, polystyrene, and antiaging agent raw materials with a mixer for use;

[0053] (3) Keep the uniformly stirred mixed material in the reactor at a temperature of 170-200°C and stir at high speed for 10-30 minutes;

[0054] (4) Casting the prepared PP hot-melt adhesive into the molding cavity for cooling and molding, thereby preparing the desired shape of the hot-melt adhesive. That is, the battery PP plastic case adhesive is obtained.

Embodiment 3

[0055] Example 3: Preparation of battery PP plastic case adhesive

[0056] Raw materials: see Table 1.

[0057] Preparation method: with embodiment 1.

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Abstract

The invention discloses a PP plastic shell adhesive for a storage battery and a preparation method of the PP plastic shell adhesive. The adhesive comprises 52 to 65 wt% of a thermoplastic polyester elastomer, 9.5 to 13 wt% of polyethylene, 15 to 24 wt% of polypropylene, 4 to 6 wt% of polyisobutene, 3 to 5 wt% of polystyrene and 0.5 to 1.5 wt% of an anti-aging agent. The PP plastic shell adhesive for the storage battery has the advantages of strong acid and alkali resistance, high strength, high toughness and good temperature resistance, and is suitable for a PP plastic shell of a power type storage battery.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an adhesive for battery PP plastic cases and a preparation method thereof. Background technique [0002] ABS material and PP material are two main materials for making lead-acid battery casing. ABS material has good strength and brighter color, but its molecular density is low, and water vapor can easily penetrate the battery tank wall. If the battery is used for a long time, the battery is easy to lose water, which may shorten the battery life. Batteries made of ABS materials are usually sealed with epoxy glue, which is easy to age and the airtightness of the battery is poor. Furthermore, the glue sealing process is usually a manual operation, which makes it difficult to ensure the stability of the battery. Domestic batteries are basically made of ABS materials. The PP material is soft and flexible, and it will not burst under high pressure. Its molecular density is highe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J167/00C09J123/14C09J11/08
CPCC08L2201/08C08L2203/20C08L2205/035C08L2207/04C09J11/08C09J167/00C08L23/06C08L23/14C08L23/22C08L25/06
Inventor 陈振富张森
Owner XIAMEN MATE HI TECH NEW ENERGY CO LTD
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