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Polyethylene naphthalate resin composition and preparation method thereof

A technology of polyethylene naphthalate and resin composition, applied in the field of polymer materials, can solve the problem of undiscovered thermal conductivity of PEN, and achieve the effects of improving mechanical properties and heat resistance, simple process and stable quality

Active Publication Date: 2013-11-20
BEIJING RISUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the research of PEN resin, there is no relevant report on improving the thermal conductivity of PEN.

Method used

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  • Polyethylene naphthalate resin composition and preparation method thereof
  • Polyethylene naphthalate resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 45wt% polyethylene naphthalate resin (intrinsic viscosity 0.65), 5wt% EPDM rubber (propylene content 35%, purchased from Exxon Mobil Corporation), 5wt% maleic anhydride graft Polypropylene (maleic anhydride graft rate 3%, purchased from Shanghai Kumho Sunny Company), 35wt% 200 mesh alumina, 1wt% aminosilane coupling agent (KH550, purchased from Nanjing Shuguang Chemical Group Co., Ltd.) and 0.4wt% antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate (IRGANOX1076, purchased from BASF company) and 0.6wt% antioxidant triphosphite (2,4-di-tert-butylphenyl) ester (IRGAFOS168, purchased from BASF company) was stirred in a high-speed mixer (same as above) for 5 minutes, after mixing evenly, after dropping into a twin-screw extruder (same as above), from the fiber Add 8wt% alkali-free glass fiber (T635B, with an average diameter of 13 microns, purchased from Taishan Glass Fiber Co., Ltd.) into the inlet, and extrude to pelletize. The length-to-diameter ratio of...

Embodiment 2

[0049] 43.3wt% polyethylene naphthalate resin (intrinsic viscosity 0.75), 5wt% EPDM rubber (35% propylene content, purchased from Exxon Mobil Corporation), 2wt% maleic anhydride Branch EPDM rubber (maleic anhydride graft rate 2%, purchased from Shanghai Kumho Sunny Company), 44wt% 300 mesh magnesium oxide (purchased from Xiamen Zhanfan Trading Co., Ltd.), 0.5wt% epoxy group Silane coupling agent (KH570, purchased from Nanjing Shuguang Chemical Group Co., Ltd.) and 0.2wt% antioxidant tris (2,4-di-tert-butylphenyl) phosphite (IRGAFOS168, purchased from BASF company) Stir in mixer (same as above) for 4 minutes, after mixing evenly, drop into twin-screw extruder (same as above), add 5wt% alkali-free glass fiber (T635B, average diameter is 13 microns, purchased from Taishan Glass Fiber Co., Ltd. company), extrusion granulation. The length-to-diameter ratio of the twin-screw extruder is 32, the controlled feeding speed is 9rpm, the screw speed is 200rpm, and the temperature of each...

Embodiment 3

[0051] 44wt% of polyethylene naphthalate resin (intrinsic viscosity 0.75), 8wt% of SBS (SBS4452, purchased from China Petroleum & Chemical Corporation Beijing Yanshan Branch), 7wt% of maleic anhydride grafted SBS ( Maleic anhydride graft rate 3.2%, purchased from Shanghai Kumho Sunny Company), 32wt% 300 purpose boron nitride (purchased from Xiamen Zhanfan Trading Co., Ltd.), 0.5wt% epoxy silane coupling agent (KH570 , purchased from Nanjing Shuguang Chemical Group Co., Ltd.) and 0.5wt% antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate (IRGANOX1076, purchased from BASF company) Stir in the high-speed mixer (same as above) for 3 minutes. After mixing evenly, put it into the twin-screw extruder (same as above), and add 8wt% alkali-free glass fibers (T635B, with an average diameter of 13 microns, purchased from Taishan Glass) from the fiber inlet. Fiber Co., Ltd.), extrusion granulation. The length-to-diameter ratio of the twin-screw extruder is 40, the control...

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Abstract

The invention relates to a high-heat-conductivity electric-insulation polyethylene naphthalate resin composition and a preparation method thereof, and a product containing the polyethylene naphthalate resin composition. The polyethylene naphthalate resin composition provided by the invention has the advantages of favorable mechanical properties, favorable flowability, favorable heat resistance, favorable heat-conducting property and the like, and is easy for machining. The preparation method provided by the invention has the advantages of simple and continuous process and high production efficiency; and the prepared composition has stable quality.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to the modification of polymer materials. More specifically, the present invention relates to a polyethylene naphthalate resin composition and its preparation method as well as products comprising the above polyethylene naphthalate resin composition, in particular to a high thermal conductivity insulating polyethylene A polyethylene naphthalate resin composition, a method for preparing the same, and an article comprising the above polyethylene naphthalate resin composition. Background technique [0002] As a new type of polyester, polyethylene naphthalate (PEN) has better mechanical and thermal properties than polyethylene terephthalate (PET). The molecular structure difference between PEN and PET lies in that the benzene ring in the PET molecule is replaced by a naphthalene ring. The more rigid naphthalene ring provides PEN with more unique mechanical properties, optical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L53/02C08L23/16C08L75/04C08L67/00C08L77/00C08L51/06C08L51/00C08K13/04C08K7/14C08K3/22C08K3/38C08K3/28C08K3/34
Inventor 杨雪岗姜立忠石志哲冯清正潘小军
Owner BEIJING RISUN TECH CO LTD
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