JPWO2016198884A5

JPWO2016198884A5 -

Info

Publication number: JPWO2016198884A5
Application number: JP2018516642A
Authority: JP
Publication date: 2022-08-01
Anticipated expiration: 2036-06-10

Description

好適には、粒子そのものは、コアの３０容量％～７４容量％を構成してよく、より好適には、コアの５０容量％～７０容量％を構成してもよい。コアの強度と重量とのバランスをとるためには、コアの大部分が、マトリックス材料内に保持された粒子から成ることが好適である。 Suitably, the particles themselves may constitute 30% to 74% by volume of the core , more suitably 50% to 70% by volume of the core . In order to balance the strength and weight of the core, it is preferred that the majority of the core consist of particles held within a matrix material.

好適には、パネルの縁部において、粒子が短繊維補強材など他の材料にほぼ置換されるように、コアの構造体を変更することができる。短繊維補強材は、短繊維補強材そのものがコアの０容量％～４０容量％を構成し得るように、そのコア中の少なくとも一部、又は全部の粒子を置換することができる。 Advantageously, the structure of the core can be modified so that at the edges of the panel the particles are largely replaced by other materials such as short fiber reinforcement. The short fiber reinforcement can replace at least some or all of the particles in the core such that the short fiber reinforcement itself can constitute 0% to 40% by volume of the core.

複合フォームコア３は、軽量な中空ガラスミクロスフェアを含有するマトリックス材料から製造される。このミクロスフェアの大部分は、４０μｍ以下、好適には９～２５μｍの範囲の直径及び／又は４０ＭＰａ超の圧潰強度を有する。複合フォームコア３は、５０～７０容量％のミクロスフェアを含み、そのミクロスフェアはエポキシ樹脂マトリックス材料によって囲まれている。 The composite foam core 3 is manufactured from a matrix material containing lightweight hollow glass microspheres. The majority of the microspheres have a diameter of 40 μm or less, preferably in the range of 9-25 μm and/or a crush strength of greater than 40 MPa. The composite foam core 3 contains 50-70% by volume microspheres surrounded by an epoxy resin matrix material.

図４に示すように、一実施形態において、パネルの周縁部における複合フォームの組成は、ミクロスフェアが減少して０％となり、次いで、その複合フォームの最大４０容量％を構成する短繊維補強材７によって置換されるものである。このような実施形態は、平均１００μｍの繊維長を有するミルド炭素繊維補強材を使用するが、短繊維は、炭素繊維、アラミド繊維、玄武岩繊維、及び／又はファイバガラス繊維であってよい。中央パネルコアから周縁部への組成における変更を容易にするために、周縁領域はセル状ハニカムを含有し得る。これは、中央複合フォームコアの残りから、局所的に変更されたコア材料を仕切る。これに代えて、短繊維補強材は中央コア内にのみ配置されることができるか、又はコアと周縁の縁部領域との両方において使用されることができる。 As shown in FIG. 4, in one embodiment, the composition of the composite foam at the perimeter of the panel is reduced to 0% microspheres, followed by short fiber reinforcement comprising up to 40% by volume of the composite foam. It is replaced by material 7. Such embodiments use milled carbon fiber reinforcement with an average fiber length of 100 μm, but the staple fibers may be carbon, aramid, basalt, and/or fiberglass fibers. The peripheral region may contain cellular honeycomb to facilitate changes in composition from the central panel core to the peripheral edge. This partitions the locally modified core material from the rest of the central composite foam core. Alternatively, short fiber reinforcements can be placed only in the central core, or can be used in both the core and the peripheral edge regions.

本発明の他の実施形態では、中央コア構造体の５０％超を構成する複合フォームは、少なくてコアの３０容量％であり最大で７４容量％の、マイクロメートルスケールのミクロスフェアを含む。このミクロスフェアは、中実又は中空であってよく、ガラス材料、炭素材料、金属材料、ポリマー材料、又はセラミック材料から製造され得る。 In another embodiment of the invention, the composite foam comprising more than 50% of the central core structure comprises at least 30% and at most 74% by volume of the core micrometer-scale microspheres. The microspheres can be solid or hollow and can be made from glass, carbon, metal, polymer, or ceramic materials.

Claims

A unit load device having a base panel, the base panel comprising:
a top layer comprising a fiber reinforcement material;
a bottom layer comprising a fiber reinforcement material;
A central core portion, said central core portion comprising a plurality of microspheres anchored in a matrix material, said microspheres comprising 30% to 74% by volume of said central core portion. comprising a part and
the top layer and the bottom layer are provided with the matrix material for securing the top layer and the bottom layer to the central core portion;
30% to 74% by volume of the microspheres have a diameter of less than 40 μm;
the bottom layer is provided on the bottom side of the unit load device;
A unit load device, wherein said central core portion comprises a cellular structure at least partially filled with said 30% to 74% by volume microspheres.

The unit load device of claim 1, wherein said 30% to 74% by volume microspheres have a minimum crush strength of 40 MPa.

The matrix material of the top layer and the bottom layer, the matrix material bonding the top layer and the bottom layer, and the matrix material binding the microspheres to the central core portion are the same and continuous with each other. 3. A unit load device according to claim 1 or 2, which is a

A unitload device according to any preceding claim, wherein the thickness of the top layer, the bottom layer, or both is between 0.2 mm and 3.5 mm.

A unit load device according to any preceding claim, wherein the density of the central core portion is between 0.5 and 1.2 g/cm ³ .

A unitload device according to any preceding claim, wherein a barrier layer is disposed between the central core portion and one or more face layers.

7. Any one of claims 1-6, wherein the central core portion comprises a plurality of different microspheres, the microspheres differing by one or more properties selected from the group consisting of size, shape, structure and material. or a unit load device according to paragraph 1.

A unitload device according to any one of the preceding claims , wherein said 30% to 74% by volume microspheres have a diameter of 9 µm to 25 µm .

9. Any of claims 1-8, wherein the structure, composition, or both capacities of the central core portion are varied such that two or more portions of the structure of the central core portion have different structural properties. A unit load device according to paragraph 1.

10. A unit load device according to claim 9, wherein one or more regions of the core of the panel comprise a composite incorporating up to 40% by volume of short fiber reinforcement .

A unit load device according to any one of the preceding claims, wherein at least part of the peripheral edge of the panel is recessed or raised to form a lip portion.