Hot-melt splicing adhesive tape

A technology of hot-melt adhesive layer and tape, applied in the direction of adhesives, heat-activated films/sheets, adhesive types, etc., can solve the problems of easy aging of double bonds, aging of export products, and restrictions on the export of electronic components

Inactive Publication Date: 2017-06-06
HUIZHOU XINHAOYUAN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the hot-melt braiding tapes commonly used in the market usually use rubber as the elastic body for the rubber layer, but the rubber is easy to age due to its double bonds, and a lot of anti-aging agents are usually added to achieve the effect of extending the service life. However, the rubber It itself determines that the anti-aging effect has its limit, and it is difficult to pass the long-term aging test of 85°C high temperature and 85% high humidity
For example, the high-temperature and high-humidity environment on the ocean surface makes the export products age and lose viscosity during the long sea transportation, which seriously restricts the export of electronic components.

Method used

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  • Hot-melt splicing adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, polyacrylate pressure-sensitive adhesives were synthesized according to the above method and ratio.

[0024] like figure 1 As shown, a hot-melt braided tape includes a textured paper substrate layer 1, a release layer 2, and a hot-melt adhesive layer 3.

[0025] Wherein said hot melt adhesive layer is synthesized according to the following method:

[0026] Take 40 parts of acrylate glue, 0.002 parts of diisocyanate, 5 parts of modified phenolic resin, 1.4 parts of liquid rosin resin, 1.8 parts of naphthenic oil, 0.04 part of silane coupling agent, and an appropriate amount of ethyl acetate.

[0027] Then mix and stir evenly, coat on textured paper with a coating thickness of 50um, dry at 130°C for 3min, and cut into 12mm width to obtain the finished product.

[0028] Then perform a performance test, the specific data is as follows:

[0029] Initial viscosity: low; Pull-out force: 60-90N / in; 85℃×85RH×500h: Capacitor feet bounce off.

Embodiment 2

[0031] First, polyacrylate pressure-sensitive adhesives were synthesized according to the above method and ratio.

[0032] like figure 1 As shown, a hot-melt braided tape includes a textured paper substrate layer 1, a release layer 2, and a hot-melt adhesive layer 3.

[0033] Wherein said hot melt adhesive layer is synthesized according to the following method:

[0034] Take 40 parts of acrylate glue, 0.002 parts of diisocyanate, 5 parts of modified phenolic resin, 2.2 parts of naphthenic oil, 0.12 parts of silane coupling agent, and an appropriate amount of ethyl acetate.

[0035] Then mix and stir evenly, coat on textured paper with a coating thickness of 50um, dry at 130°C for 3min, and cut into 12mm width to obtain the finished product.

[0036] Then perform a performance test, the specific data is as follows:

[0037] Initial viscosity: very low; pull-out force: 14-20N / in; after placement, the viscosity decreases and the taping property decreases.

Embodiment 3

[0039] First, polyacrylate pressure-sensitive adhesives were synthesized according to the above method and ratio.

[0040] like figure 1 As shown, a hot-melt braided tape includes a textured paper substrate layer 1, a release layer 2, and a hot-melt adhesive layer 3.

[0041] Wherein said hot melt adhesive layer is synthesized according to the following method:

[0042] Take 40 parts of acrylate glue, 0.003 part of diisocyanate, 4 parts of modified phenolic resin, 2 parts of naphthenic oil, 0.08 part of silane coupling agent, and an appropriate amount of ethyl acetate.

[0043] Then mix and stir evenly, coat on textured paper with a coating thickness of 50um, dry at 130°C for 3min, and cut into 12mm width to obtain the finished product.

[0044] Then perform a performance test, the specific data is as follows:

[0045] Initial tack: high; pulling force: 64-80 N / in.

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Abstract

The invention discloses a hot-melt splicing adhesive tape. The hot-melt splicing adhesive tape comprises a textured paper base material, a release layer and a hot melt adhesive layer, wherein the hot melt adhesive layer is prepared from the following raw materials in parts by weight: polyacrylate pressure-sensitive adhesive, diisocyanate, tackifying resin, a plasticizer and other auxiliary agents. The hot-melt splicing adhesive tape provided by the invention is very low in initial bonding property; when being heated for use, the hot-melt splicing adhesive tape can firmly stick metal pins, and the adhesive strength is more than or equal to 75N/in; the hot-melt splicing adhesive tape is easy in sticking and good in hydrolysis resistance. The hot-melt splicing adhesive tape gives full play to the oxidation resistance and anti-aging property of acrylate, and also can reach the very excellent high temperature resistance, high humidity resistance and anti-aging property even if an antioxidant is not added into the hot-melt splicing adhesive tap. The tensile strength of the hot-melt splicing adhesive tap is more than or equal to 100N/in, and the elongation at break of the hot-melt splicing adhesive tap is more than or equal to 10%. The polyacrylate pressure-sensitive adhesive used by the hot-melt splicing adhesive tape is synthesized in a way of overall copolymerization, so that the hot-melt splicing adhesive tape is simple in synthetic process and stable in quality.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to a hot-melt braided tape. Background technique [0002] With the development of the electronics industry and the extensive application of industrial braiding operations, hot-melt braiding tape is an important variety whose characteristics make it difficult to be replaced. Hot-melt adhesives have the following advantages: (1) Hot-melt adhesives have their own Softening point, it can be used by heating it to a certain temperature during use. (2) Once heated and used, the hot melt adhesive can exert its high cohesiveness, stick firmly to the back sticker, and is not easy to separate. (3) The elastic body formed after the hot melt adhesive cools has a fixing effect and is not easy to deform , displacement. [0003] Hot-melt adhesive is a kind of plastic adhesive. Its physical properties will change significantly with temperature within a certain temperature range, but its chemical properties will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/04C09J133/08C09J161/14C09J193/04C09J11/06
CPCC09J7/38C08L2205/025C08L2205/035C09J7/21C09J7/35C09J11/06C09J133/08C09J2433/00C08L61/14C08L93/04C08L91/00C08L57/02C08L67/00C08K5/29C08K5/101C08K5/54
Inventor 彭文涛江日新
Owner HUIZHOU XINHAOYUAN DEV
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