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Preparation method of calcium titanate modified polyphenylene sulfide dielectric composite material

A polyphenylene sulfide and composite material technology, applied in the field of polymer composite material preparation, can solve the problems of restricting the development of the microelectronics industry and low dielectric constant, and achieve easy secondary processing, increase the dielectric constant, and easy purchase of raw materials Effect

Active Publication Date: 2013-12-11
YUNNAN INFINE NEO MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyphenylene sulfide, like other polymer dielectric materials, has a low dielectric constant (3.4-5.1), which limits its development in the microelectronics industry.

Method used

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  • Preparation method of calcium titanate modified polyphenylene sulfide dielectric composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In Example 1, the polyphenylene sulfide is Chevron Phillips P-6 powder (fluorine-containing modified polyphenylene sulfide), the dielectric constant is 2.9 (1M-1GHz), and the dielectric loss is 0.0028 ( 1M~1GHz), the calcium titanate is CT-301 (Nantong Aoxin Electronic Technology Co., Ltd.), the dielectric constant is 140 (1MHz), the dielectric loss is 0.0006, and the coupling agent is butyl titanate coupling agent (Guangzhou Emperor Cheng Trading Co., Ltd). The implementation process is as follows:

[0023] A. Coupling surface treatment of calcium titanate: Weigh 500g of calcium titanate and 50g of butyl titanate coupling agent into a ball mill jar, add 250g of absolute ethanol, 1000g of zirconia balls (Φ9:Φ5=2 :3), mixing and ball milling for 45min, the ball milling speed is 170rpm, after the ball milling, dry for later use.

[0024] B. Weigh 500g of polyphenylene sulfide and 500g of calcium titanate treated by coupling surface, and put them into a high-speed mixer ...

Embodiment 2

[0027] In Example 2, the polyphenylene sulfide is Japan Toray A900 (powder), the dielectric constant is 3.5 (1MHz), the dielectric loss is 0.001 (1MHz), and the coupling agent is silane coupling agent KH550 (Guangzhou Jucheng Zhaoye Organic Silicon Raw Materials Co., Ltd.). The implementation process is as follows:

[0028] A. Coupling surface treatment of calcium titanate: Weigh 400g of calcium titanate and 22g of KH550 into a ball mill jar, add 200g of absolute ethanol, 800g of zirconia balls (Φ9:Φ5=3:7), mix ball mill 40min, the ball milling speed is 150rpm, after the ball milling is finished, dry it for later use.

[0029] B. Weigh 610g of polyphenylene sulfide and 390g of calcium titanate with coupling surface treatment, put them into a high-speed mixer for dry mixing for 13 minutes, control the stirring speed at 1700rpm, and the temperature of the mixing tank at 48°C, mix polyphenylene sulfide with Calcium titanate is fully and evenly mixed.

[0030] C. Put the mixed ...

Embodiment 3

[0032] In Example 3, the polyphenylene sulfide is Nippon Takara 1140T11 (powder), the dielectric constant is 4.1 (1GHz), the dielectric loss is 0.003 (1GHz), and the coupling agent is aluminate coupling agent TM -A3 (Yizheng Tianyang Chemical Co., Ltd.). The implementation process is as follows:

[0033] A. Coupling surface treatment of calcium titanate: Weigh 450g calcium titanate and 32g TM-A3 into a ball mill jar, add 220g absolute ethanol, 900g zirconia balls (Φ9:Φ5=2:3), mix Ball milled for 40 minutes, the ball milling speed is 160rpm, after the ball milling is completed, it is dried for later use.

[0034] B. Weigh 530g of polyphenylene sulfide and 470g of calcium titanate treated by coupling surface, and put them into a high-speed mixer for dry mixing for 13 minutes. Calcium titanate is fully and evenly mixed.

[0035] C. Put the mixed materials into the hopper of the twin-screw extruder (L / D=30), control the screw speed to 100rpm, and the temperature of the five sta...

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Abstract

The invention discloses a preparation method of calcium titanate blend modified polyphenylene sulfide dielectric composite material. The preparation method comprises the following steps of: carrying out surface treatment on calcium titanate by using a coupling agent, so that the calcium titanate is uniformly dispersed in polyphenylene sulfide; regulating the proportion of the polyphenylene sulfide to calcium titanate to regulate a dielectric constant (6-10@1M-1GHz) of the composite material; and processing and preparing through extrusion of a screw rod. The process is mature and efficient. The prepared polyphenylene sulfide / calcium titanate dielectric composite material keeps such excellent performances of polyphenylene sulfide as low loss, corrosion resistance, easiness in secondary processing; the application of the composite in the electronic material industry is expanded by improving the dielectric constant, and therefore, the composite material can be applied to the high-tech fields including electronics and electrical appliances, microwave communication, satellite communications, radar system and the like.

Description

technical field [0001] The invention relates to the field of polymer composite material preparation, specifically a preparation method of calcium titanate modified polyphenylene sulfide dielectric composite material. Background technique [0002] With the improvement of the integration degree of the microelectronics industry, communication equipment and portable terminal entities are developing in the direction of miniaturization, light weight, thinness, multi-function, and high performance. High-density layout, which puts forward the following requirements for the dielectric materials required by the microelectronics industry: In terms of electrical performance, there must be higher applicable frequency, stable and serialized dielectric constant, lower dielectric loss and higher Insulation resistance; in terms of mechanical properties, it must have high adhesion and high hardness; in terms of chemical properties, it must have high corrosion resistance and low moisture absor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K9/04C08K9/06C08K3/24B29B9/06B29C47/92B29C48/92
Inventor 邢孟江
Owner YUNNAN INFINE NEO MATERIAL