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A mobile phone case with excellent heat dissipation and preparation method thereof

A mobile phone case and heat dissipation technology, applied in the field of mobile phone case and its preparation, can solve the problems of easy deformation and wear resistance, poor radiation protection effect and high processing cost

Active Publication Date: 2021-04-30
重庆龙勤精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, although the traditional mobile phone casing made of metal materials has good heat dissipation, the processing cost is high, and there are also disadvantages such as signal shielding, easy deformation, and poor wear resistance; Materials, such as PC / ABS plastics, are wear-resistant and not easily deformed, but have problems such as poor heat dissipation and poor radiation protection

Method used

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  • A mobile phone case with excellent heat dissipation and preparation method thereof
  • A mobile phone case with excellent heat dissipation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A mobile phone casing with excellent heat dissipation provided by this embodiment is an organic-inorganic composite material, and its raw materials include the following components by weight: polycarbonate 32.5kg, ultra-high molecular weight polyethylene 9kg, nano-aluminum nitride Fiber 2.5kg, bismuth trioxide 2kg, modified expandable graphite 2.5kg, magnesium borate whisker 1.5kg. Wherein, the molecular weight of the ultra-high molecular weight polyethylene is not less than 1.8 million; the bismuth trioxide is δ-type bismuth trioxide.

[0026] The modified expandable graphite is expanded graphite modified by boric acid and simethicone, and its specific preparation method is: first disperse 3.5kg of expandable graphite with 35kg of ethanol, and then add 35g of simethicone Stir, then add 70g of boric acid, disperse with ultrasonic wave for 60min, filter and dry to obtain the modified expandable graphite.

[0027] In addition, the above-mentioned method for preparing a m...

Embodiment 2

[0033] A mobile phone casing with excellent heat dissipation provided by this embodiment is an organic-inorganic composite material, and its raw materials include the following components by weight: 20 kg of polycarbonate, 12.5 kg of ultra-high molecular weight polyethylene, and nano-aluminum nitride Fiber 5kg, bismuth trioxide 4kg, modified expandable graphite 5kg, magnesium borate whisker 3.5kg. Wherein, the molecular weight of the ultra-high molecular weight polyethylene is not less than 1.8 million; the bismuth trioxide is δ-type bismuth trioxide.

[0034] The modified expandable graphite is expanded graphite modified by boric acid and simethicone, and its specific preparation method is: first disperse 3.5kg of expandable graphite with 35kg of ethanol, and then add 35g of simethicone Stir, then add 70g of boric acid, disperse with ultrasonic wave for 60min, filter and dry to obtain the modified expandable graphite.

[0035] In addition, the above-mentioned method for prep...

Embodiment 3

[0041]A mobile phone casing with excellent heat dissipation provided by this embodiment is an organic-inorganic composite material, and its raw materials include the following components in parts by weight: 29 kg of polycarbonate, 15 kg of ultra-high molecular weight polyethylene, and nano-aluminum nitride Fiber 3.5kg, bismuth trioxide 2.5kg, modified expandable graphite 3kg, magnesium borate whisker 2kg. Wherein, the molecular weight of the ultra-high molecular weight polyethylene is not less than 1.8 million; the bismuth trioxide is δ-type bismuth trioxide; the modified expandable graphite is boric acid and simethicone modified The specific preparation method of the expandable graphite is as follows: first disperse the expandable graphite with ethanol, then add simethicone for stirring, then add boric acid, disperse with ultrasonic waves, filter and dry to obtain the described modified expandable graphite.

[0042] In addition, the above-mentioned method for preparing a mob...

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Abstract

The invention discloses a mobile phone shell with excellent heat dissipation and a preparation method thereof, belonging to the technical field of mobile phone accessories. The mobile phone casing is an organic-inorganic composite material, and its raw materials include the following components in parts by weight: 40-65 parts of polycarbonate, 18-25 parts of ultra-high molecular weight polyethylene, 5-10 parts of nano-aluminum nitride fiber, 4-8 parts of bismuth trioxide, 5-10 parts of modified expandable graphite, and 3-7 parts of magnesium borate whiskers. The above-mentioned raw materials are extruded and granulated by twin-screws, and injection-molded by an injection molding machine, and then cooled and demolded to obtain the mobile phone case. The invention uses polycarbonate and ultra-high molecular weight polyethylene as the matrix, and can obtain high strength, high thermal conductivity and high radiation shielding by adding components such as nano-aluminum nitride fiber, bismuth trioxide and modified expandable graphite. The high-efficiency mobile phone casing can solve the problems of poor heat dissipation and poor radiation resistance of the existing plastic mobile phone casings.

Description

technical field [0001] The invention relates to mobile phone accessory technology, in particular to a mobile phone casing with excellent heat dissipation and a preparation method thereof. Background technique [0002] Mobile phones are arguably the most common entertainment and communication tool for people. Of course, with the rapid development of science and information technology, the requirements for mobile phone accessories are getting higher and higher. In addition to being beautiful and practical, the high performance of mobile phone accessories has become the basic requirement for mobile phones. For example, the shell of a mobile phone must not only be beautiful and feel good, but also need to have the characteristics of easy heat dissipation and radiation protection. [0003] However, although the traditional mobile phone casing made of metal materials has good heat dissipation, the processing cost is high, and there are also disadvantages such as signal shielding,...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/06C08K13/06C08K9/02C08K9/06C08K7/24C08K7/04C08K3/22C08K7/08
Inventor 不公告发明人
Owner 重庆龙勤精密设备有限公司
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