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Packaging adhesive for mobile phone vibrator

A vibrator and adhesive technology, used in rosin adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of short service life, difficult assembly, and small size. Achieve the effect of good packaging stability, low production cost and good bonding effect

Inactive Publication Date: 2016-05-25
安徽同佳电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively small volume of mobile phone vibration devices, assembly is difficult, and the coil components and PCB boards are vibrated by the vibrator for a long time, so the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add 7 parts of nano-alumina and 42 parts of n-butanol to 70 parts of rosin glyceride, mix well, and then microwave at a microwave frequency of 2450MHz and a power of 600W for 15 minutes, and then add 16 parts of bismaleic acid after the temperature drops to 70°C Imine resin and 10 parts of polyvinyl alcohol were incubated and stirred for 30 minutes to obtain material I;

[0017] Add 14 parts of modified starch to 60 parts of water for beating, and after a uniform slurry is formed, add 7 parts of palm wax and 5 parts of squash gum, heat up to 70°C and keep stirring for 15 minutes to obtain material II;

[0018] Add 12 parts of talcum powder and 10 parts of gypsum powder to the material II, and ultrasonically treat it at an ultrasonic frequency of 40 kHz and a temperature of 50 ° C for 20 minutes, then add material I, 10 parts of maca powder, 4 parts of dibutyltin dilaurate and 2 parts of citrate Sodium citrate, continue ultrasonic treatment for 10-15min to obtain the bin...

Embodiment 2

[0022] Add 8 parts of nano-alumina and 45 parts of n-butanol to 75 parts of rosin glyceride, mix well, and then microwave at a microwave frequency of 2450MHz and a power of 600W for 15 minutes, and then add 18 parts of bismaleic acid after the temperature drops to 80°C Imine resin and 12 parts of polyvinyl alcohol were incubated and stirred for 30 minutes to obtain material I;

[0023] Add 15 parts of modified starch to 65 parts of water for beating, and after forming a uniform slurry, add 8 parts of palm wax and 7 parts of squash gum, heat up to 70°C and keep stirring for 20 minutes to obtain material II;

[0024] Add 13 parts of talcum powder and 10 parts of gypsum powder to the material II, and ultrasonically treat it at an ultrasonic frequency of 40 kHz and a temperature of 50 ° C for 20 minutes, then add material I, 12 parts of maca powder, 5 parts of dibutyltin dilaurate and 3 parts of citrate Sodium citrate, continue ultrasonic treatment for 15 minutes, and obtain the b...

Embodiment 3

[0028] Add 10 parts of nano-alumina and 50 parts of n-butanol to 80 parts of rosin glyceride, mix well, and microwave at a microwave frequency of 2450MHz and a power of 600W for 15 minutes, and then add 18 parts of bismaleic acid after the temperature drops to 80°C Imine resin and 10 parts of polyvinyl alcohol were incubated and stirred for 30 minutes to obtain material I;

[0029] Add 18 parts of modified starch to 70 parts of water for beating, and after forming a uniform slurry, add 9 parts of palm wax and 6 parts of safflower gum, heat up to 70°C and keep stirring for 20 minutes to obtain material II;

[0030] Add 12 parts of talc powder and 12 parts of gypsum powder to the material II, and ultrasonically treat it for 20 minutes at an ultrasonic frequency of 40 kHz and a temperature of 50 ° C, then add material I, 13 parts of maca powder, 5 parts of dibutyltin dilaurate and 4 parts of citrate Sodium citrate, continue ultrasonic treatment for 15 minutes, and obtain the bind...

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PUM

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Abstract

The invention provides a packaging adhesive for a mobile phone vibrator. The packaging adhesive for the mobile phone vibrator is prepared from 70-80 parts of rosin glycerin ester, 15-20 parts of bismaleimide resin,13-18 parts of modified starch, 11-15 parts of talcum powder, 10-13 parts of polyvinyl alcohol, 10-13 parts of maca powder, 8-12 parts of gypsum powder, 6-10 parts of nanometer alumina, 6-10 parts of palm wax, 5-8 parts of sesbania gum, 3-6 parts of dibutyltin dilaurate, 2-4 parts of sodium citrate, 40-50 parts of n-butyl alcohol and 60-70 parts of water. The rosin glycerin ester serves as main raw materials and is modified through the nanometer alumina, various auxiliary agents are used in cooperation, the prepared adhesive has the advantages of being low in production cost, good in adhesion effect, small in using amount and good in packaging stability, good vibration resistance is achieved, and the packaging adhesive is suitable for a coil assembly of the mobile phone vibrator and packaging of a PCB.

Description

technical field [0001] The invention relates to the field of mobile phone vibrators, in particular to a packaging adhesive for mobile phone vibrators. Background technique [0002] The mobile phone vibrator works on the principle that an eccentric device vibrates when it rotates. When the user does not want to make a sound, the vibrator of the mobile phone can remind the user when there are incoming calls, messages, and alarm clocks, without disturbing other people. Due to the relatively small volume of mobile phone vibration devices, assembly is difficult, and the coil components and PCB boards are vibrated by the vibrator for a long time, so the service life is short. Contents of the invention [0003] The purpose of the present invention is to provide a packaging adhesive for mobile phone vibrator, which is used to package the coil assembly and PCB board of the mobile phone vibrator. Using the packaging adhesive for packaging can reduce the difficulty of assembly and e...

Claims

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Application Information

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IPC IPC(8): C09J193/04C09J11/04C09J11/08C09J11/06
CPCC09J193/04C08K2201/011C08L2205/035C09J11/04C09J11/06C09J11/08C08L29/04C08L79/085C08L3/02C08K13/06C08K9/08C08K9/04C08K2003/3045C08K2003/2227
Inventor 王辉张强
Owner 安徽同佳电子科技有限公司