Continuous fiber reinforced resin composite material and molded article thereof

Patent metadata

Field	Value
Publication number	US-2016159054-A1
Application number	US-201414906268-A
Country	US
Kind code	A1
Filing date	Jul 18, 2014
Priority date	Jul 30, 2013
Publication date	Jun 9, 2016
Grant date	—

Abstract

The present invention provides a continuous fiber-reinforced resin composite material which is a laminate in which a continuous fiber layer and a resin layer are alternately laminated, wherein the resin layer is a layer formed by including a thermoplastic resin or a thermosetting resin, and the continuous fiber layer includes a structural frame of continuous fibers formed by arranging continuous fibers side by side, wherein the thermoplastic resin or the thermosetting resin, originating from the resin layer, penetrates into the structural frame of continuous fibers to form a resin-impregnated continuous fiber, such that a part of the structural frame of continuous fibers is the resin-impregnated continuous fiber and the remainder of the structural frame of continuous fibers is a resin-non-impregnated continuous fiber into which the thermoplastic resin or the thermosetting resin is not penetrated.

First claim

1 . A continuous fiber-reinforced resin composite material which is a laminate in which a continuous fiber layer and a resin layer are alternately laminated,
wherein the resin layer is a layer formed by including a thermoplastic resin or a thermosetting resin, and the continuous fiber layer includes a structural frame of continuous fibers formed by arranging continuous fibers side by side, wherein the thermoplastic resin or the thermosetting resin, originating from the resin layer, penetrates into the structural frame of continuous fibers to form a resin-impregnated continuous fiber, such that a part of the structural frame of continuous fibers is the resin-impregnated continuous fiber and the remainder of the structural frame of continuous fibers is a resin-non-impregnated continuous fiber into which the thermoplastic resin or the thermosetting resin is not penetrated.

2 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the continuous fiber-reinforced resin composite material includes at least two of the plurality of the continuous fiber layers or the resin layers.

3 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the continuous fiber layer has a thickness of 20 μm to 65 μm.

4 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the continuous fiber has an average diameter of 5 μm to 20 μm.

5 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the structural frame of continuous fibers is formed in two (2) to twenty (20) plys, of which one ply is formed of individual continuous fibers being arranged side by side.

6 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the resin layer has a thickness of 10 μm to 200 μm.

7 . The continuous fiber-reinforced resin composite material of claim 1 , wherein a bulk volume ratio of the resin-impregnated continuous fiber to the resin-non-impregnated continuous fiber is 1:9 to 7:3.

8 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the resin originating from the resin layer penetrates into the structural frame of continuous fibers toward the center from a surface of the continuous fiber layer, so as that the resin-impregnated continuous fiber is present in up to a depth of 5% to 35% on the basis of total thickness of the continuous resin layer.

9 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the structural frame of continuous fibers is formed by stacking the continuous fibers, and a packing shape in which the continuous fibers are stacked is a triangle packing or a square packing when being viewed on a cross section of the continuous fiber layer on the basis of a circular cross section of the continuous fiber.

10 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the continuous fiber is one selected from the group consisting of carbon fibers, glass fibers, aramid fibers, and combinations thereof.

11 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the resin includes one selected from the group consisting of polytetrafluoroethylene (PTFE), polyethylene, polypropylene (PP), polystyrene, polyphenylene oxide (PPO), polyvinyl chloride (PVC), polyethylene terephthalate (PET), Nylon 6.6, polymethyl methacrylate (PMMA), and combinations thereof.

12 . The continuous fiber-reinforced resin composite material of claim 1 , wherein the resin penetrating into the continuous fiber layer originates from the resin layer, so that the resin layers are integrated with the continuous resin layers.

13 . A molded article comprising the continuous fiber-reinforced resin composite material of claim 1 .

14 . The molded article of claim 13 , wherein the continuous fiber-reinforced resin composite material is wound.

15 . The molded article of claim 13 , wherein the continuous fiber-reinforced resin composite material is woven as a weft or a warp.

Assignees

• Lg Hausys Ltd

Inventors

• Lee Tae Hwa
• Kim Hee June

Classifications

• B32B2262/106

  Carbon fibres, e.g. graphite fibres · CPC title

• B32B38/08

  Impregnating · CPC title

• B32B2605/18

  Aircraft · CPC title

• B32B2262/0269

  Aromatic polyamide fibres · CPC title

• B32B27/34

  comprising polyamides · CPC title