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1.发明公开
公开(公告)号：EP3527344A1
公开(公告)日：2019-08-21
申请号：EP17860367.6
申请日：2017-09-28
IPC分类号： B29B15/08 , C08J5/04 , D04H1/732 , B29K101/10 , B29K105/08
摘要： Provided are: a random mat that comprises a chopped fiber bundle [A] obtained by obliquely cutting a partially separated fiber bundle [B] prepared by alternately forming separation-processed sections, each of which is separated into a plurality of bundles, and not-separation-processed sections, along the lengthwise direction of a fiber bundle, wherein the total cross-sectional area of reinforcing fibers exhibits a specific change amount between both tips of the chopped fiber bundle [A]; a production method of the random mat; and a fiber-reinforced resin molding material using the random mat. By having the specific chopped fiber bundle [A] of the present invention, excellent flowability during molding can be realized, high mechanical properties (strength, elastic modulus) when made into a molded article can be realized, and variations in the mechanical properties can be suppressed to be small.
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公开(公告)号：EP2857439A1
公开(公告)日：2015-04-08
申请号：EP13797501.7
申请日：2013-05-15
CPC分类号： C08J5/06 , B32B2250/05 , B32B2260/046 , B32B2262/106 , B32B2305/076 , B32B2305/28 , B32B2307/54 , C08J5/042 , C08J2377/02
摘要： A carbon fiber composite material which comprises a carbon fiber sheet as a reinforcing material and a thermoplastic resin as a matrix resin, the carbon fiber sheet exhibiting a work per areal weight of 1 x 10 -3 to 30 x 10 -3 [(N· mm)/(g/m 2 )] in a tensile test using a specimen having a width of 25 mm. This carbon fiber composite material exhibits excellent flowability in molding and ensures excellent moldability even when molded into a complicated shape. Further, the composite material can yield a molded product which has high mechanical properties with minimized dispersion, thus being suitable for press molding.
摘要翻译： 一种碳纤维复合材料，其包含作为增强材料的碳纤维片材和作为基质树脂的热塑性树脂，所述碳纤维片材的每个面积重量为1×10 -3〜30×10 -3 [（N· mm）/（g / m 2）]在使用宽度为25mm的试样的拉伸试验中。 该碳纤维复合材料在成型时表现出优异的流动性，并且即使在成型成复杂形状时也能保证优异的成型性。 此外，复合材料可以产生具有高机械性能并且最小化分散的模制产品，因此适合于压制成型。
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公开(公告)号：EP2813532A1
公开(公告)日：2014-12-17
申请号：EP13747299.9
申请日：2013-02-05
发明人： MIYOSHI Katsuhiro , SHIMADA Takashi , HASHIMOTO Takafumi , OHARA Tetsuya , IIZUKA Tomonori , NAKASHIMA Shoji
IPC分类号： C08J5/06
CPC分类号： C08K7/06 , C08J5/042 , C08J2323/12 , C08K2201/004
摘要： Provided is a carbon fiber composite material characterized in that: the material is made of carbon fibers and a thermoplastic resin; the proportion Y, relative to the total weight of carbon fibers, of carbon fiber bundles (1) for which Mn/(Ln x D) is 8.5 x 10 -1 (mg/mm 2 ) or more, is in a range of 30≦ Y -2 ≦ X≦ 8.1 x 10 -2 (mg/mm); and the Y satisfies Y≧ 100X + 30. Where, Mn: weight of carbon fiber bundles, Ln: fiber length of carbon fibers, D: fiber diameter of carbon fibers. Obtained is a carbon fiber composite material that can combine high flowability and mechanical properties, has few variations in mechanical properties and shows an excellent adaptability of carbon fibers for small parts such as ribs etc.
摘要翻译： 提供了一种碳纤维复合材料，其特征在于：所述材料由碳纤维和热塑性树脂制成; Mn /（Ln×D）为8.5×10 -1（mg / mm 2）以上的碳纤维束（1）相对于碳纤维总重量的比例Y为30≤ Y <90（wt％）; 碳纤维束（1）的Mn / Ln的平均值X在1.1×10-2≤X≤8.1×10-2（mg / mm）的范围内。 并且Y满足Y≥100X+ 30.其中，Mn：碳纤维束的重量，Ln：碳纤维的纤维长度，D：碳纤维的纤维直径。 所获得的是一种碳纤维复合材料，其可以结合高流动性和机械性能，机械性能变化很小，并且对于肋条等小部件显示出优异的碳纤维适应性。
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4.发明公开
公开(公告)号：EP3279243A1
公开(公告)日：2018-02-07
申请号：EP16772319.6
申请日：2016-03-17
IPC分类号： C08J5/06
摘要： The present invention is a fiber-reinforced resin forming material containing at least a matrix resin and bundled aggregates of discontinuous reinforcing fibers, wherein: the bundled aggregates of reinforcing fibers include both reinforcing fiber aggregates A having a shape formed by cutting after having performed a splitting treatment to completely split the strands of continuous reinforcing fibers into a plurality of bundles of strands, and reinforcing fiber aggregates B1 having a shape that includes unsplit parts where splitting treatment was inadequate and/or reinforcing fiber aggregates B2 having a shape not subjected to splitting treatment; and both the ratio of the weight of the reinforcing fiber aggregates B1 with respect to the total weight of reinforcing fibers in the fiber-reinforced resin forming material, and the ratio of the total weight of the reinforcing fiber aggregates B1 and the reinforcing fiber aggregates B2 with respect to the total weight of reinforcing fibers in the fiber-reinforced resin forming material, are within a range of 50-95%. Provided are a fiber-reinforced resin forming material with which it is possible to achieve a good balance of excellent fluidity during forming and exceptional mechanical properties of the formed article, and a method for producing the same.
摘要翻译： 本发明是一种纤维增强树脂形成材料，其至少含有基体树脂和不连续增强纤维的束集合体，其中：增强纤维的束集合体包括具有在进行分裂后通过切割形成的形状的增强纤维集合体A 将连续增强纤维束完全分割成多股线束的处理和具有包括分裂处理不充分的未分离部分和/或未经过分裂处理的形状的增强纤维聚集体B2的形状的增强纤维聚集体B1 ; 并且强化纤维集合体B1的重量相对于纤维强化树脂形成材料中的强化纤维的总重量的比例以及强化纤维集合体B1与强化纤维集合体B2的总重量的比例 相对于纤维增强树脂成形材料中的增强纤维的总重量，在50-95％的范围内。 本发明提供一种纤维增强树脂形成材料及其制造方法，该材料能够实现成形时的优异的流动性和成形品的优异的机械物性的平衡。
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公开(公告)号：EP3199316A1
公开(公告)日：2017-08-02
申请号：EP15843148.6
申请日：2015-09-03
CPC分类号： B29C70/12 , B29K2105/12 , B29K2307/04
摘要： A reinforcing fiber composite material characterized by comprising discontinuous reinforcing fibers containing discontinuous reinforcing fiber aggregates and a matrix resin, wherein a fan-shaped discontinuous reinforcing fiber aggregate (A) is contained at an amount of 5% by weight or more in the discontinuous reinforcing fibers, and wherein the fan-shaped discontinuous reinforcing fiber aggregate (A) has a fan-like section in which an aspect ratio at least at one end part of a discontinuous reinforcing fiber aggregate (the width of the discontinuous reinforcing fiber aggregate/the thickness of the discontinuous reinforcing fiber aggregate) is 1.5 times or more relative to an aspect ratio at a narrowest part at which the width of the discontinuous reinforcing fiber aggregate is smallest when the discontinuous reinforcing fiber aggregate is projected two-dimensionally. It becomes possible to provide an excellent reinforcing fiber composite material which can achieve all of excellent flowability during molding, high mechanical properties of a molded article and two-dimensional isotropy at a good balance, and further, which exhibits less fluctuation in the mechanical properties.
摘要翻译： 一种增强纤维复合材料，其特征在于，含有不连续增强纤维集合体和基质树脂的不连续增强纤维，其中，在不连续增强纤维中含有5重量％以上的扇形不连续增强纤维聚集体（A） 所述扇形不连续增强纤维聚集体（A）具有至少在不连续增强纤维聚集体的一个端部处的纵横比（所述不连续增强纤维聚集体的宽度/ 不连续增强纤维聚集体）相对于不连续增强纤维聚集体二维投影时的最不连续增强纤维聚集体的宽度最窄的部分的纵横比为1.5倍以上。 可以提供一种优异的增强纤维复合材料，其能够实现成型时的优异的流动性，成型品的高机械物性和平衡良好的二维各向同性，并且机械物性的偏差小。
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公开(公告)号：EP2960269A1
公开(公告)日：2015-12-30
申请号：EP14753675.9
申请日：2014-02-19
IPC分类号： C08J5/04
CPC分类号： C08K7/06 , C08J5/042 , C08J2377/00 , D04H1/4242 , D04H1/60 , D04H1/74 , Y10T428/24994
摘要： A stampable sheet which comprises a resin and a carbon fiber sheet constituted of fiber bundles of discontinuous carbon fibers, wherein the carbon fiber sheet comprises fiber bundles (A) having a bundle width of 50 µm or greater and opened fibers (B) ranging from fiber bundles having a bundle width less than 50 µm to fibers obtained by opening to the single-fiber level. When the direction along which the opened fibers (B) have been oriented most is taken as 0° direction and the range of from the 0° direction to a 90° direction is divided into a plurality of angular zones, the distribution curve which shows the proportion of the number of fiber bundles (A) in each angular zone to that in all angular zones and the distribution curve which shows the proportion of the number of opened fibers (B) in each angular zone to that in all angular zones are reverse to each other in terms of gradient in the range of from the 0° direction to the 90° direction. This stampable sheet can exhibit high mechanical properties with a high isotropy, and makes it possible to easily mold a desired CFRP with a satisfactory moldability.
摘要翻译： 一种可冲压片材，其包含树脂和由不连续碳纤维的纤维束构成的碳纤维片材，其中所述碳纤维片材包括束宽度为50μm以上的纤维束（A）和从纤维开始的开放纤维（B） 具有小于50μm的束宽度的束与通过打开到单束纤维级而获得的纤维束之间的距离。 将开纤（B）取向最多的方向设为0°方向，将从0°方向至90°方向的范围分割为多个角度区域时的分布曲线， 每个角区中的纤维束数（A）与所有角区中的纤维束数（A）的比例以及表示每个角区中的开纤维数（B）与所有角度区中的开纤比例的分布曲线是相反的 彼此之间在从0°方向到90°方向的范围内的梯度。 这种可冲压片材可以表现出高各向同性的高机械性能，并且可以容易地成型具有令人满意的成型性的所需CFRP。
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7.发明公开CARBON-FIBER-REINFORCED PLASTIC AND PROCESS FOR PRODUCING SAME 审中-公开VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2716693A1
公开(公告)日：2014-04-09
申请号：EP12793979.1
申请日：2012-04-18
发明人： HASHIMOTO Takafumi , MINOWA Hirohito , SHIMADA Takashi , HASHIMOTO Masahiro , MIYOSHI Katsuhiro , NARUSE Yoshihiro
IPC分类号： C08J5/04
CPC分类号： C08K3/04 , B29C70/06 , B29C70/14 , C08J5/042 , C08J5/24 , C08J2300/22 , C08J2377/00
摘要： A carbon-fiber-reinforced plastic prepared by impregnating a matrix resin into a sheet-like base material composed of discontinuous carbon fibers, wherein the content ratio of carbon fibers having lengths of 10 mm or longer in the sheet-like base material is 60 wt% or more relative to the total amount of the carbon fibers, and the average value of the orientation degrees of the carbon fibers contained in the base material is in a range of 2-10; and a process for producing the carbon-fiber-reinforced plastic, wherein the formation of the sheet-like base material is performed by carding. At the stage of the sheet-like base material which is not impregnated yet, adequate anisotropy is intentionally imparted to the discontinuous carbon fibers in such a manner that the average value of the orientation degrees of the discontinuous carbon fibers falls within a predetermined range. Therefore, it becomes possible to produce a carbon-fiber-reinforced plastic excellent in mechanical properties using a smaller amount of the carbon fibers while maintaining the shape formability of the sheet-like base material and the moldability into the carbon-fiber-reinforced plastic satisfactorily.
摘要翻译： 将基质树脂浸渍到由不连续碳纤维构成的片状基材中制备的碳纤维增强塑料，其中片状基材中长度为10mm以上的碳纤维的含量比例为60重量％ 相对于碳纤维的总量的％以上，并且基材中所含的碳纤维的取向度的平均值在2-10的范围内; 以及制造碳纤维增强塑料的方法，其中片状基材的形成通过梳理进行。 在未浸渍的片状基材的阶段，以不均匀碳纤维的取向度的平均值落在规定范围内的方式，有意地赋予不连续碳纤维足够的各向异性。 因此，可以在保持片状基材的成型性和令人满意的碳纤维强化塑料的成型性的同时，使用较少量的碳纤维来制造机械性能优异的碳纤维增强塑料 。
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公开(公告)号：EP3950283A1
公开(公告)日：2022-02-09
申请号：EP20779020.5
申请日：2020-03-09
IPC分类号： B29C70/12 , B29C70/42 , C08J5/04 , B29K101/10 , B29K105/08
摘要： Provided are a fiber-reinforced resin molding material molded product and a method for producing same, the molded product being a molded product [D] comprising a fiber-reinforced resin molding material [C] obtained by impregnating chopped fiber bundles [A] with a matrix resin [B], wherein in a region excluding 30 mm from the edge of the molded product [D], when an arbitrary rectangular region having an area of 40 mm 2 or more and defined by the thickness of the molded product and the width in the direction perpendicular to the thickness direction of the molded product is set in a cross section in an arbitrary thickness direction of the molded product [D], the bundle thickness [E] of the chopped fiber bundles [A] present in the set rectangular region satisfies the following requirements [1]-[3]: [1] when a frequency distribution in which the values of the bundle thickness [E] are distributed in sections set from 0 µm at intervals of every 10 µm is created, the most frequent value of the bundle thickness [E] in the section representing the highest value is in the range of 30-100 µm; [2] the ratio of the chopped fiber bundles [A] having a bundle thickness [E] of 200 µm or more is 5% or less; and [3] the CV value of the bundle thickness [E] is in the range of 10-60%. A fiber-reinforced resin molding material molded product capable of exhibiting excellent homogeneity and mechanical properties can be obtained.
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公开(公告)号：EP3858894A1
公开(公告)日：2021-08-04
申请号：EP19864293.6
申请日：2019-09-24
IPC分类号： C08J5/06
摘要： The fiber-reinforced resin molding material is obtained by impregnating a chopped fiber bundle with a matrix resin, has a layered structure including three or more layers in a thickness direction thereof, and satisfies the relationships Lao > Lam and Wao > Wam, where Lao and Wao represent the number average fiber length and the number average fiber bundle width, respectively, of the chopped fiber bundle in the outermost layer thereof, and Lam and Wam represent the number average fiber length and the number average fiber bundle width, respectively, of the chopped fiber bundle in a middle layer thereof. Alternatively, this fiber-reinforced resin molding material is obtained by impregnating a chopped fiber bundle with a matrix resin, has a layered structure including three or more layers in a thickness direction thereof, and satisfies the relationships Lao > Lam and Tao > Tam, where Lao and Tao represent the number average fiber length and the number-average fiber bundle thickness, respectively, of the chopped fiber bundle in the outermost layer thereof, and Lam and Tam represent the number average fiber length and the number average fiber bundle thickness, respectively, of the chopped fiber bundle in a middle layer thereof. Provided are: a fiber-reinforced resin molding material exhibiting excellent fluidity; and a molded article exhibiting excellent mechanical properties.
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公开(公告)号：EP3473759A1
公开(公告)日：2019-04-24
申请号：EP17815126.2
申请日：2017-06-01
发明人： MOTOHASHI Tetsuya , HASHIMOTO Takafumi , NOGUCHI Yasumoto , KAWAHARA Yoshihiro , SUZUKI Tamotsu , SATO Chiasa
IPC分类号： D02J1/18 , B65H51/005
摘要： A partially separated fiber bundle that comprises separation-processed sections, each divided into a plurality of bundles of at least three bundles, and not-separation-processed sections, that are alternately formed along the lengthwise direction of a fiber bundle that comprises a plurality of single fibers. The partially separated fiber bundle is characterized in that, at any width-direction cross-section taken along the lengthwise direction thereof, a rate of single fibers contained in a region at which adjacent divided fiber bundles are joined by a not-separation-processed part is 67% or less relative to the total single fibers in the width-direction cross-section. A production method for the partially separated fiber bundle, a fiber-reinforced resin molding material that uses the partially separated fiber bundle, and a production method for the fiber-reinforced resin molding material that uses the partially separated fiber bundle. When the partially separated fiber bundle has been made into an intermediate base material of fiber bundles of discontinuous fibers that is to be used in molding of a composite material, it is possible to control thin fiber bundles and thick fiber bundles at an optimal ratio and an optimal distribution state and to exhibit the flowability during molding and the mechanical properties of a molded article at a good balance.
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