TPEE acoustic film and production method thereof

An acoustic and film technology, applied in the field of TPEE acoustic film, can solve the problems of affecting the service life of materials, high price of PTFE, poor performance stability, etc., and achieve the effects of convenient operation, improved acoustic performance and low preparation cost.

Inactive Publication Date: 2020-05-29
苏州市新广益电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The Chinese invention with the application number 201610838757.7 discloses a TPEE / TPU / PTFE composite cable material and its preparation method. It is reported that the prepared composite cable material has relatively excellent mechanical properties, good oil resistance, and high Good wear resistance, aging resistance, high / low temperature resistance, chemical solvent resistance, good resilience, strong toughness and strength; but due to the compatibility between TPEE, TPU, PTFE and other additives Poor, so that the performance stability is not good in the long-term use process, affecting the service life of the material, and PTFE is expensive, which limits its wide application

Method used

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  • TPEE acoustic film and production method thereof

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Effect test

Embodiment 1

[0033] A TPEE acoustic film is characterized in that it comprises a modified TPEE film and a backing film formed by laminating an adhesive; the modified TPEE film is made of the following raw materials in parts by weight: 60 parts of TPEE, 15 parts of radiation-grafted modified TPEE, 5 parts of fluorine-containing epoxy resin, 2 parts of nano-titanium dioxide, 1 part of silane coupling agent KH550, 0.5 part of methyl silicone oil, and 10100.2 parts of antioxidant.

[0034] For the preparation method of the fluorine-containing epoxy resin, refer to: Wang Chengzhong, Zuo Yu, Synthesis and Performance Research of Fluorine-Containing Epoxy Resin [J]. Thermosetting Resin, 2009 (01): 14-16, specifically comprising the following steps: Add 2,4-diisocyanate into the three-necked flask, add dodecafluoroheptanol dropwise at 60°C, drop it within 1 hour, then raise the temperature to 85°C to react for 2 hours, add epoxy resin DGEBA at 100°C ℃ for 2 hours, then precipitated in water, place...

Embodiment 2

[0040] A TPEE acoustic film is characterized in that it comprises a modified TPEE film and a backing film laminated by an adhesive; the modified TPEE film is made of the following raw materials in parts by weight: 63 parts of TPEE, 17 parts of radiation-grafted modified TPEE, 6 parts of fluorine-containing epoxy resin, 3 parts of nano-titanium dioxide, 1.2 parts of silane coupling agent KH560, 0.7 parts of phenyl silicone oil, and 1680.3 parts of antioxidant.

[0041] For the preparation method of the fluorine-containing epoxy resin, refer to: Wang Chengzhong, Zuo Yu, Synthesis and Performance Research of Fluorine-Containing Epoxy Resin [J]. Thermosetting Resin, 2009 (01): 14-16, specifically comprising the following steps: Add 2,4-diisocyanate into the three-necked flask, add dodecafluoroheptanol dropwise at 60°C, drop it within 1 hour, then raise the temperature to 85°C to react for 2 hours, add epoxy resin DGEBA at 100°C ℃ for 2 hours, then precipitated in water, and placed...

Embodiment 3

[0047] A TPEE acoustic film is characterized in that it comprises a modified TPEE film and a backing film laminated by an adhesive; the modified TPEE film is made of the following raw materials in parts by weight: 65 parts of TPEE, 20 parts of radiation-grafted modified TPEE, 7.5 parts of fluorine-containing epoxy resin, 4 parts of nano-titanium dioxide, 1.5 parts of silane coupling agent KH570, 1 part of methyl ethoxy silicone oil, and 0.4 part of antioxidant 1076.

[0048] For the preparation method of the fluorine-containing epoxy resin, refer to: Wang Chengzhong, Zuo Yu, Synthesis and Performance Research of Fluorine-Containing Epoxy Resin [J]. Thermosetting Resin, 2009 (01): 14-16, specifically comprising the following steps: Add 2,4-diisocyanate into the three-necked flask, add dodecafluoroheptanol dropwise at 60°C, drop it within 1 hour, then raise the temperature to 85°C to react for 2 hours, add epoxy resin DGEBA at 100°C ℃ for 2 hours, then precipitated in water, and...

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Abstract

The invention discloses a TPEE acoustic film. The TPEE acoustic film is characterized by comprising a modified TPEE film and a backing film which are laminated by an adhesive; and the modified TPEE film is prepared from, by weight, 60-70 parts of TPEE, 15-25 parts of radiation graft modified TPEE, 5-10 parts of fluorine-containing epoxy resin, 2-6 parts of nanometer titanium dioxide, 1-2 parts ofa coupling agent, 0.5-1.5 parts of a lubricant and 0.2-0.6 part of an antioxidant. The invention also provides a production method of the TPEE acoustic film. The TPEE acoustic film disclosed by the invention is excellent in comprehensive performances and excellent in heat resistance, weather resistance, dimensional stability, surface friction performance, tearing strength and puncture resistance,and can effectively improve the acoustic performance of an electroacoustic device, keep the low resonant frequency of the electroacoustic device and improve the electroacoustic conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of acoustic film materials, in particular to a TPEE acoustic film and a production method thereof. Background technique [0002] Electro-acoustic devices refer to devices that convert electricity and sound, which use electromagnetic induction, electrostatic induction or piezoelectric effects to complete electro-acoustic conversion, mainly including speakers, earphones, microphones, cartridges, etc. Acoustic film is one of the core components in electro-acoustic devices. Its movement under the mechanical drive of the voice coil is the reason for generating sound signals. Its performance directly determines the effect of electro-acoustic conversion and whether it can perfectly present the sound. Essence without distortion. Therefore, how to improve the comprehensive performance of the acoustic film has become a hot topic for researchers in the industry. [0003] With the development of the electronics indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/36B32B7/12B32B37/10B32B37/12C08J5/18C08L67/00C08L63/00C08L51/08C08K13/02C08K3/22
CPCB32B7/12B32B27/08B32B27/32B32B27/36B32B27/365B32B37/10B32B37/1284B32B2307/306B32B2307/554B32B2307/558B32B2307/5825C08J5/18C08J2367/00C08J2451/08C08J2463/00C08K13/02C08K2003/2241C08K2201/011
Inventor 夏超华
Owner 苏州市新广益电子股份有限公司
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