Flame retardant expanded double-sided tape and preparation process thereof

A double-sided adhesive tape and preparation technology, which is applied in the direction of adhesives, film/sheet adhesives, pressure-sensitive films/sheets, etc., can solve the problems of inability to securely fix batteries, unstable expansion tapes, and high expansion rates. Achieve the effects of excellent flame retardant safety performance, excellent bond strength, and excellent expansion performance

Pending Publication Date: 2019-02-01
太仓斯迪克新材料科技有限公司
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  • Abstract
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Problems solved by technology

However, the expansion tapes on the market have problems such as instability, poor viscosity, and easy to react with the electrolyte of the battery.
[0003] For example, the application publication number is CN107746682A, and the Chinese patent titled "A Method for Making Acrylic Expansion Tape" mainly discloses a method for making an expansion tape, which has good corrosion resistance and high expansion rate. There

Method used

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  • Flame retardant expanded double-sided tape and preparation process thereof

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Embodiment

[0031] A flame-retardant expansion double-sided adhesive tape, which sequentially includes a first composite acrylic adhesive layer, a flame-retardant polystyrene synthetic resin layer, a second composite acrylic adhesive layer and a double-sided release film layer from top to bottom;

[0032] The first composite acrylic adhesive layer and the second composite acrylic layer are formed by mixing acrylic acid and styrene, and a small amount of curing agent is added thereto, and the curing agent can be isocyanate.

[0033] Among them, the proportion of acrylic acid and styrene in the composite acrylic adhesive layer is 70-90:5-20; the proportion of HIPS, EPS and halogen-free flame retardant in the flame-retardant polystyrene synthetic resin layer is 45-80:15- 45:5-25, organic nitrogen-phosphorus flame retardants and inorganic nitrogen-phosphorus flame retardants can be used for halogen-free flame retardants.

[0034] The composition of each substance in Example 1-Example 5 is the...

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Abstract

The invention relates to a flame retardant expanded double-sided tape. The flame retardant expanded double-sided tape comprises a first composite acrylic acid glue layer, a flame-retarded polystyrenesynthetic resin layer, a second composite acrylic acid glue layer and a double-sided release film layer which are sequentially arranged from top to bottom. Compared with the common flame-retardant expanded tape on the market, the product has high viscosity and strong fixing ability, so the an electrical core and an outer casing can be firmly fixed, the tape has the resistance to an electrolyte, does not affect the composition of the electrolyte, does not affect the performance of a battery, the expansion ratio of the tape exceeds 3 times, which is better to fill an assembly gap and reduce thepossibility of vibration displacement, and the double-sided tape has good safety.

Description

technical field [0001] The invention relates to a double-sided adhesive tape, in particular to a flame-retardant expansion double-sided adhesive tape and a preparation process thereof. Background technique [0002] At present, the new energy automobile industry is developing rapidly, and at the same time, it puts forward high requirements for the safety performance of new energy batteries. In the later stage of equipment operation, there will often be severe vibrations. At this time, there may be friction and damage between the battery cell and the shell, resulting in the risk of short circuit of the battery. Therefore, in order to solve this problem, the battery cell and shell need to be Fill the gap between them, and at the same time fix the battery cell and the casing, so as to reduce the risk of battery short-circuit fire and explosion caused by equipment vibration. Therefore, it is necessary to develop a special tape with these functions. The tape will expand and chang...

Claims

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Application Information

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IPC IPC(8): C09J7/24C09J7/38
CPCC09J7/245C09J7/385C09J2425/006C09J2433/00
Inventor 金闯葛东来
Owner 太仓斯迪克新材料科技有限公司
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