Mica sheet adhesive tape and preparation method thereof

A mica sheet and tape technology, applied in the direction of adhesives, film/sheet adhesives, adhesive types, etc., can solve the problems of insufficient initial viscosity of tapes, rough surface of mica sheets, poor temperature resistance, etc., to improve adhesion. Stress and thermal stability, rapid wettability, effect of improving thermal stability

Pending Publication Date: 2021-12-31
福建友谊胶粘带集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of the mica sheet is relatively rough, and the existing tapes have insufficient initial adhesion and poor temperature resistance, and the adhesion is not strong and easy to loosen.

Method used

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  • Mica sheet adhesive tape and preparation method thereof
  • Mica sheet adhesive tape and preparation method thereof

Examples

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preparation example Construction

[0022] The present invention also provides a kind of preparation method of mica sheet adhesive tape, comprises the following steps:

[0023] Step 1: Prepare the following raw materials in parts by weight: acrylic acid: 5-8 parts; isooctyl acrylate: 30-32 parts; hydroxyethyl acrylate: 3-5 parts; vinyl acetate: 12-14 parts; stir and mix to obtain a mixed product;

[0024] Step 2: Put the mixed product in the reaction furnace into ethyl acetate: 50-55 parts, turn on the stirring, pass in nitrogen, and raise the temperature to 65-70°C to obtain the polymer;

[0025] Step 3: the following raw materials by weight: polymer: 100 parts; low softening point terpene resin: 5-10 parts; nano silicon dioxide: 3-5 parts; zinc oxide: 3-5 parts; silane coupling agent: 1-2 parts; 1-2 parts of paraffin; 0.5-1 part of isocyanate curing agent; after stirring and mixing, the finished glue is made;

[0026] Step 4: Coat the finished glue on one side of the tissue paper, then attach the release pape...

Embodiment 1

[0031] A preparation method of mica sheet tape, comprising the following steps:

[0032] Step 1: Prepare the following raw materials in parts by weight: acrylic acid: 7 parts; isooctyl acrylate: 31 parts; hydroxyethyl acrylate: 4 parts; vinyl acetate: 13 parts; stir and mix to obtain a mixed product;

[0033] Step 2: Put the mixed product in the reaction furnace into ethyl acetate: 53 parts, turn on the stirring, feed nitrogen, and raise the temperature to 66°C to obtain the polymer;

[0034] Step 3: the following raw materials by weight: polymer: 100 parts; low softening point terpene resin: 7 parts; nano silicon dioxide: 4 parts; zinc oxide: 4 parts; silane coupling agent: 1 part; paraffin wax 1 part ; Isocyanate curing agent: 0.5 part; after stirring and mixing, the finished glue is obtained;

[0035] The low softening point terpene resin is the low softening point terpene resin T-50 of Shanghai Shuixing Industrial Co., Ltd.; the silane coupling agent is a silane coupling ...

Embodiment 2

[0039] A preparation method of mica sheet tape, comprising the following steps:

[0040] Step 1: Prepare the following raw materials in parts by weight: acrylic acid: 5 parts; isooctyl acrylate: 30 parts; hydroxyethyl acrylate: 3 parts; vinyl acetate: 12 parts; stir and mix to obtain a mixed product;

[0041] Step 2: Put the mixed product into the reaction furnace: 50 parts of ethyl acetate, turn on the stirring, pass in nitrogen, and heat up to 65°C to obtain the polymer;

[0042] Step 3: the following raw materials by weight: polymer: 100 parts; low softening point terpene resin: 5 parts; nano silicon dioxide: 3 parts; zinc oxide: 3 parts; silane coupling agent: 1 part; paraffin wax 1 part ; Isocyanate curing agent: 0.5 part; after stirring and mixing, the finished glue is obtained;

[0043] The low softening point terpene resin is the low softening point terpene resin T-50 of Shanghai Shuixing Industrial Co., Ltd.; the silane coupling agent is a silane coupling agent (KH56...

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Abstract

The invention relates to the technical field of adhesive tapes, in particular to a mica sheet adhesive tape and a preparation method thereof.The mica sheet adhesive tape comprises release paper, a glue layer, tissue paper and a glue layer which are sequentially connected, wherein the glue layer is prepared from the following raw materials in parts by weight: a polymer; a low softening point terpene resin; nano silicon dioxide; zinc oxide; a silane coupling agent; paraffin; and an isocyanate curing agent. The polymer is composed of the following raw materials: acrylic acid; 2-ethylhexyl acrylate; hydroxyethyl acrylate; vinyl acetate; and ethyl acetate. The mica sheet adhesive tape disclosed by the invention has the beneficial effects that the mica sheet adhesive tape is used for fixing mica sheets in a new energy battery, the low-softening-point terpene resin is added into the glue layer for tackifying, and the nano silicon dioxide and the zinc oxide are matched for dispersing and improving the heat-resistant stability of the adhesive tape; furthermore, the silane coupling agent further improves the adhesive force and the thermal stability of the glue, so that the obtained mica sheet adhesive tape has strong adhesive force and good temperature resistance.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a mica sheet adhesive tape and a preparation method thereof. Background technique [0002] With the development of electric vehicles, lithium-ion batteries have become an important development direction of electric vehicles at present. Due to the high energy required by the car battery pack, it often needs to be connected by thousands of cells, and because the discharge current required by the car is large, the cells The heat is serious, which poses a great hidden danger to the safety of the battery. Mica sheet is a natural inorganic fireproof material with good heat resistance, and is widely used in the fireproof and heat insulation of new energy vehicle battery packs. The installation of the mica sheet can be pasted in the required position by tape to improve the production efficiency of the battery. However, the surface of the mica sheet is relatively rough, and the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/21C09J7/30C09J175/04C09J11/04C09J11/06C09J11/08
CPCC09J7/21C09J7/30C09J175/04C09J11/04C09J11/06C09J11/08C08K2201/011C08K2003/2296C09J2203/326C09J2203/33C09J2301/124C09J2301/408C09J2400/283C08L45/00C08L91/06C08K3/36C08K3/22C08K5/5435
Inventor 张梓恒林克波林克兴林子茂
Owner 福建友谊胶粘带集团有限公司
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