Long carbon fiber reinforced thermoplastic resin composition for foam injection and molded article produced using the composition
A technology of thermoplastic resin and long carbon fiber, which is applied in the field of composites and molded products prepared therefrom, which can solve the problems of light weight performance reduction and achieve the effects of light weight, improved assembly and stability, and high rigidity
Active Publication Date: 2020-12-25
HYUNDAI MOTOR CO LTD +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Unfortunately, this results in reduced lightweight performance
Method used
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Embodiment 1 to 2 and comparative example 1 to 8
[0075] Examples 1 to 2 and Comparative Examples 1 to 8. Preparation of thermoplastic resin composition
[0076] Composition ingredients shown in Table 1 below were weighed and mixed with each other to prepare pellets by using a twin-screw extruder and a pull molding machine. In addition, using Trexell Corporation's MuCell TM Method, A sample for measuring properties was prepared by foam injection molding so that the foam rate was 15%.
[0077] [composition components]
[0078] Polyamide-6 polymer
[0079] Polyamide-6 with a number average molecular weight of 50,000
[0080] enhancer
[0081] Long carbon fibers, wherein the raw material is polyacrylonitrile (PAN), have an average cross-sectional diameter of 7 μm, a length of 10 mm, and contain epoxy resin as a sizing material in an amount of 1% by weight based on the weight of the long carbon fiber reinforcement.
[0082] Short carbon fibers, wherein the raw material is polyacrylonitrile (PAN), have an average cross-secti...
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Abstract
The present invention provides a long carbon fiber reinforced thermoplastic resin composition for foam injection and a molded article produced using the composition. More specifically, the thermoplastic resin composition and the resulting molded article are capable of improving part assembly and stability by minimizing deformation after foam injection molding. Such compositions and moldings can be used as components of vehicle structures, such as panorama sunroof frames. Also provided herein is a low density polyamide-6 polymer comprising a long carbon fiber reinforcement, a thermoplastic elastomer, a silane-based coupling agent, and a sodium phosphate nucleating agent. This polymer is suitable for foam injection. The thermoplastic resin composition and molded articles made from the composition are lightweight, economically viable, and have high rigidity, durability, dimensional stability, and desirable injection appearance.
Description
technical field [0001] The present invention relates to a long carbon fiber reinforced thermoplastic resin composition for foam injection and a molded article produced using the composition. More specifically, the present invention relates to a composition and molded articles prepared therefrom, which can be used to improve part assembly and stability by minimizing deformation after foam injection molding. As such, such compositions and moldings can be used as components of vehicle structures, such as panorama sunroof frames. Provided herein is a long carbon fiber reinforced thermoplastic resin composition comprising a long carbon fiber reinforcement, a thermoplastic elastomer, a silane-based coupling agent and a sodium phosphate nucleating agent, and a low-density polyamide-6 polymer. This polymer is suitable for foam injection. It is also lightweight, economically viable, and offers high stiffness, durability, dimensional stability and excellent injection appearance. Bac...
Claims
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IPC IPC(8): C08L77/02C08L23/08C08K7/06C08K5/5435C08K5/527C08J5/04
CPCC08J5/042C08L77/02C08J2377/02C08J2423/08C08K2201/004C08K2201/003C08L23/0815C08K7/06C08K5/5435C08K5/527C08J9/0085C08J9/0061C08K7/14C08J2377/00C08J9/0095C08L51/06C08J9/0066C08J2323/12C08J2423/12C08J5/06C08J9/009C08K5/521C08K5/54C08K9/08C08L77/06C08L2205/06C08L2207/04
Inventor 朴相鲜郑志贤徐宗泰李炯卓夫雄载
Owner HYUNDAI MOTOR CO LTD