JPH04272841A - Fiber-reinforced thermoplastic resin sheet and manufacture thereof - Google Patents
Fiber-reinforced thermoplastic resin sheet and manufacture thereofInfo
- Publication number
- JPH04272841A JPH04272841A JP3055551A JP5555191A JPH04272841A JP H04272841 A JPH04272841 A JP H04272841A JP 3055551 A JP3055551 A JP 3055551A JP 5555191 A JP5555191 A JP 5555191A JP H04272841 A JPH04272841 A JP H04272841A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fiber
- mat
- sheet
- nonwoven fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 38
- 239000004744 fabric Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 24
- 239000012210 heat-resistant fiber Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000003856 thermoforming Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 230000001771 impaired effect Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 230000000704 physical effect Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 5
- 229920001169 thermoplastic Polymers 0.000 abstract description 4
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 4
- 239000012783 reinforcing fiber Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 8
- 238000005470 impregnation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 229920003235 aromatic polyamide Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920006289 polycarbonate film Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004419 Panlite Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は強化繊維と熱可塑性樹脂
とが一体化された繊維補強熱可塑性樹脂シート及びその
製造法に関し、特に軽量、薄肉であり、機械物性（機械
的特性）に優れ、また発色性、成形性等が優れた、熱成
形性複合材料として好適な繊維強化熱可塑性樹脂シート
及びそれを工業的に製造する方法に関する。[Industrial Application Field] The present invention relates to a fiber-reinforced thermoplastic resin sheet in which reinforcing fibers and a thermoplastic resin are integrated, and a method for manufacturing the same, which is particularly lightweight, thin, and has excellent mechanical properties. The present invention also relates to a fiber-reinforced thermoplastic resin sheet suitable as a thermoformable composite material, which has excellent coloring properties, moldability, etc., and a method for industrially producing the same.
【０００２】0002
【従来の技術】ガラス短繊維で強化された熱可塑性樹脂
のシートや、連続ガラス繊維マットで強化された熱可塑
性樹脂のシートは、いわゆるスタンパブルシートとして
市販されている。また一方向に引き揃えられたガラス繊
維で強化された熱可塑性樹脂シートからなる複合材料も
知られている。2. Description of the Related Art Sheets of thermoplastic resin reinforced with short glass fibers and sheets of thermoplastic resin reinforced with continuous glass fiber mats are commercially available as so-called stampable sheets. Composite materials made of thermoplastic resin sheets reinforced with glass fibers aligned in one direction are also known.
【０００３】0003
【発明が解決しようとする課題】これらの熱可塑性樹脂
シートのうち、ガラス短繊維マットで強化されたシート
や連続ガラス繊維マットで強化されたシートは、強化繊
維（補強繊維）の繊維長が短いとか、その配列方向がラ
ンダムである等の理由により、強化繊維の強力利用率が
低く、このため得られる繊維強化熱可塑性樹脂シートの
機械物性は比較的低い値となる。加えて、これらの繊維
強化熱可塑性樹脂シートでは、シートの表面性が劣って
おり、その程度は強化繊維の含有量が増加するに従って
悪化する。このため、ガラス短繊維マットや、連続ガラ
ス繊維マットで強化された熱可塑性樹脂シートの機械物
性はかなり低く、その用途が制限されている。[Problem to be solved by the invention] Among these thermoplastic resin sheets, sheets reinforced with short glass fiber mats and sheets reinforced with continuous glass fiber mats have short fiber lengths of reinforcing fibers (reinforcing fibers). For reasons such as the fact that the reinforcing fibers are arranged in random directions, the strength utilization rate of the reinforcing fibers is low, and therefore the mechanical properties of the obtained fiber-reinforced thermoplastic resin sheet have relatively low values. In addition, these fiber-reinforced thermoplastic resin sheets have poor surface properties, which worsen as the reinforcing fiber content increases. For this reason, the mechanical properties of short glass fiber mats and thermoplastic resin sheets reinforced with continuous glass fiber mats are quite low, and their uses are limited.
【０００４】一方、一方向に引揃えられたガラス繊維で
強化された熱可塑性樹脂シートでは、強化繊維の強力利
用率が大きいため、比較的優れた機械物性を持つシート
が得られるものの、その強化繊維の引揃えの程度が、シ
ートの機械物性に大きな影響を与え、一定の品質を維持
するために多大な労力を要する。この問題は一定の強化
繊維を使用し、シート厚みを増大した場合に大きくなり
、シート厚みの向上とともに急激に機械物性が低下する
現象を惹起する。On the other hand, in a thermoplastic resin sheet reinforced with glass fibers aligned in one direction, the strength utilization rate of the reinforcing fibers is high, so a sheet with relatively excellent mechanical properties can be obtained. The degree of alignment of the fibers has a large effect on the mechanical properties of the sheet, and it requires a great deal of effort to maintain a constant quality. This problem becomes more serious when a certain reinforcing fiber is used and the sheet thickness is increased, causing a phenomenon in which the mechanical properties rapidly decrease as the sheet thickness increases.
【０００５】また、従来知られている繊維強化熱可塑性
樹脂シートでは、例えば特開昭６０−５０１４６号公報
に記載の如く炭素繊維を補強繊維として使用しているた
め、意匠性に富む着色は困難であった。[0005] In addition, conventionally known fiber-reinforced thermoplastic resin sheets use carbon fibers as reinforcing fibers, as described in JP-A No. 60-50146, so it is difficult to color them with rich design. Met.
【０００６】本発明は上記問題を解決しようとするもの
であり、その目的とする所は、シート厚みの影響が小さ
く、かつ安定に高い機械物性を持つガラス繊維強化熱可
塑性樹脂シートを提供することにある。また本発明の他
の目的は意匠性に富む着色されたガラス繊維強化熱可塑
性樹脂シートを提供することにある。The present invention attempts to solve the above problems, and its purpose is to provide a glass fiber reinforced thermoplastic resin sheet that is less affected by sheet thickness and has stably high mechanical properties. It is in. Another object of the present invention is to provide a colored glass fiber-reinforced thermoplastic resin sheet that is rich in design.
【０００７】[0007]
【課題を解決するための手段】本発明のガラス繊維強化
熱可塑性樹脂シートは、熱可塑性樹脂がガラス繊維の長
繊維織編物と耐熱性の繊維よりなるマット及び／又は不
織布とに含浸して一体化されたシートであって、上記長
繊維織編物と上記マット及び／又は不織布とが層状に積
層されており、かつ各層は長繊維織編物でマット及び／
又は不織布がはさみ込まれた位置関係にあることを特徴
としており、そのことにより上記目的が達成される。[Means for Solving the Problems] The glass fiber-reinforced thermoplastic resin sheet of the present invention is produced by impregnating a thermoplastic resin into a long fiber woven or knitted fabric of glass fibers and a mat and/or non-woven fabric made of heat-resistant fibers. The long fiber woven and knitted fabric and the mat and/or nonwoven fabric are laminated in layers, and each layer is made of the long fiber woven and knitted fabric and includes a mat and/or a nonwoven fabric.
Alternatively, the nonwoven fabric is sandwiched between the nonwoven fabrics, thereby achieving the above object.
【０００８】本発明で使用される熱可塑性樹脂としては
、加熱により溶融軟化する樹脂は全て使用可能であり、
例えばポリエチレン、ポリプロピレン、ポリ塩化ビニル
、ポリスチレン、ポリアミド、ポリエチレンテレフタレ
ート、ポリブチレンテレフタレート、ポリカーボネート
、ポリフェニレンサルファイド、ＡＢＳ等が使用できる
。また、これらの熱可塑性樹脂には、安定剤、可塑剤、
難燃剤、紫外線吸収剤、のような添加剤がブレンドされ
ていてもよい。[0008] As the thermoplastic resin used in the present invention, any resin that melts and softens when heated can be used.
For example, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyphenylene sulfide, ABS, etc. can be used. These thermoplastic resins also contain stabilizers, plasticizers,
Additives such as flame retardants and UV absorbers may also be blended.
【０００９】一方、本発明で用いられるガラス繊維の長
繊維織編物としては特に制限はなく、一般に入手できる
平織、綾織、ロービングクロスが好ましく使用できる。
ガラス繊維は透明性が高く、ガラス繊維の屈折率（１．
５４）と熱可塑性樹脂及び必要に応じて使用するその他
の化粧用表皮材の屈折率を適正化すれば非常に良好な深
みのある透明感に優れたシートができる。On the other hand, the glass fiber long fiber woven or knitted fabric used in the present invention is not particularly limited, and commonly available plain weave, twill weave, and roving cloth can be preferably used. Glass fiber has high transparency, and the refractive index of glass fiber (1.
By optimizing the refractive index of 54), the thermoplastic resin, and other cosmetic skin materials used as necessary, a sheet with excellent depth and transparency can be obtained.
【００１０】本発明で用いられる耐熱性の繊維よりなる
マット及び／又は不織布としては、後述する熱圧成形に
おいて剛性を保つ素材である必要があり、このためには
Ｔｇが１５０℃以上の材料からなるものが好ましく使用
される。かような繊維としては、例えば、ガラス繊維、
炭素繊維、アルミナ繊維、シリコンカーバイド繊維の如
き無機繊維、銅、ステンレスの如き金属繊維、メタ型ア
ラミド、パラ型アラミド、ポリアクリロニトリル、ポリ
ベンツイミダゾール、セルロースの如き有機耐熱繊維も
熱可塑性樹脂との適切な組合せにより好ましく用いられ
る。[0010] The mat and/or nonwoven fabric made of heat-resistant fibers used in the present invention must be a material that maintains rigidity during thermoforming, which will be described later. are preferably used. Examples of such fibers include glass fiber,
Inorganic fibers such as carbon fibers, alumina fibers, and silicon carbide fibers, metal fibers such as copper and stainless steel, organic heat-resistant fibers such as meta-aramids, para-aramids, polyacrylonitrile, polybenzimidazole, and cellulose are also suitable for use with thermoplastic resins. It is preferably used in combination.
【００１１】また本発明に用いられる耐熱性繊維として
は、短繊維特に繊維長が５ｃｍ以下のものが好ましいが
、特にこれに限定されない。かような繊維は捲縮がかか
っていても、いなくても本発明の実施に支障はないが、
捲縮がかかっている物を使用した場合には、作成される
マット及び／又は不織布が嵩高くなり、またこれをニー
ドリングし交絡を生じさせた場合は取扱性が向上すると
いう付帯的な利点が得られる。The heat-resistant fibers used in the present invention are preferably short fibers, particularly those having a fiber length of 5 cm or less, but are not particularly limited thereto. Although such fibers may be crimped or not, there is no problem in carrying out the present invention.
If a crimped material is used, the resulting mat and/or nonwoven fabric will be bulky, and if it is needled to create entanglement, handling will be improved, which is an additional advantage. is obtained.
【００１２】マット、不織布の嵩高性は、樹脂の含浸性
、マット、不織布の反撥性の点で３ｃｍ３ ／ｇ以上、
特に５ｃｍ３ ／ｇ以上が好ましい。[0012] The bulkiness of the mat and non-woven fabric is 3 cm3/g or more in terms of resin impregnation and repellency of the mat and non-woven fabric.
Particularly preferred is 5 cm3/g or more.
【００１３】嵩高性が不十分なものは、樹脂の含浸が不
十分になり易く、またガラス繊維クロスの層の厚みがや
や厚く緩んだ形で、しかもシートの内側へ幾分片寄った
状態になることがある。このため得られるシートの機械
物性が低くなることが多い。[0013] If the bulkiness is insufficient, resin impregnation tends to be insufficient, and the thickness of the glass fiber cloth layer becomes somewhat thick and loose, and moreover, it becomes somewhat biased toward the inside of the sheet. Sometimes. For this reason, the mechanical properties of the sheet obtained are often poor.
【００１４】本発明でいう繊維マット、不織布の嵩高性
は次式で定義される。The bulkiness of the fiber mat and nonwoven fabric as used in the present invention is defined by the following formula.
【００１５】
嵩高性（ｃｍ３ ／ｇ）＝厚さ（ｍｍ
）÷目付（ｇ／ｍ２ ）×１０００ここで、厚さはＪＩ
Ｓ Ｌ１０８５（不織布芯地試験方法）に従い、２０
ｇ／ｃｍ２ 荷重を負荷して１０秒後に厚さ測定機で測
った５ケ所の厚さの平均値をいう。Bulkyness (cm3/g) = Thickness (mm
) ÷ basis weight (g/m2) x 1000, where the thickness is JI
According to SL1085 (Test method for non-woven fabric interlining), 20
g/cm2 This refers to the average value of the thickness at 5 locations measured using a thickness measuring device 10 seconds after applying a load.
【００１６】本発明において使用する耐熱性繊維のマッ
ト、不織布が着色されている場合、得られる繊維強化熱
可塑性樹脂シートはガラス繊維の長繊維織編物を通して
該マット、不織布の色調が明瞭に透視され極めて意匠性
に富む強化熱可塑性樹脂シートが得られる。When the heat-resistant fiber mat or nonwoven fabric used in the present invention is colored, the color tone of the mat or nonwoven fabric can be clearly seen through the fiber-reinforced thermoplastic resin sheet obtained through the long fiber woven or knitted fabric of glass fibers. A reinforced thermoplastic resin sheet with extremely rich design properties can be obtained.
【００１７】優れた機械物性を有する強化熱可塑性樹脂
シートを安定に製造するためには、長繊維織編物により
耐熱性繊維のマット及び／又は不織布が、まさみ込まれ
た積層構造をとることが大切である。このような積層構
造をとることにより、長繊維織編物は成形時に発生しや
すい“うねり”を容易に防止でき、引揃えられ緊張した
形でシートの表層部に保持されるため、これによって優
れた機械物性が安定に発現する。[0017] In order to stably produce a reinforced thermoplastic resin sheet with excellent mechanical properties, it is important to have a laminated structure in which heat-resistant fiber mats and/or nonwoven fabrics are interwoven with long fiber woven and knitted fabrics. It is. By adopting such a laminated structure, the long fiber woven and knitted fabric can easily prevent the "waviness" that tends to occur during molding, and is held in the surface layer of the sheet in an aligned and taut shape, resulting in an excellent Mechanical properties are stably expressed.
【００１８】本発明において使用される耐熱性繊維のマ
ット、不織布は長繊維織編物の“うねり”を防止すると
ともに強化熱可塑性シートの成形性を高める役割を持つ
。このような機能を顕著に発現させるには、上記のマッ
ト、不織布が嵩高く反撥性を有する方が好ましく、短繊
維の無交絡マットよりは、交絡を有する不織布の方がよ
り好ましい。バインダーで交絡を形成した不織布も用い
られるが、この場合、熱成形時に、特に耐熱の面で安定
したバインダーを選ぶ必要がある。The heat-resistant fiber mat or nonwoven fabric used in the present invention has the role of preventing "undulation" of the long fiber woven or knitted material and improving the moldability of the reinforced thermoplastic sheet. In order to significantly exhibit such a function, it is preferable that the mat or nonwoven fabric is bulky and has repellency, and a nonwoven fabric with entanglement is more preferable than an unentangled mat of short fibers. A nonwoven fabric intertwined with a binder may also be used, but in this case, it is necessary to select a binder that is particularly stable in terms of heat resistance during thermoforming.
【００１９】このような構成において、熱可塑性樹脂が
含浸された長繊維織編物で熱可塑性樹脂が含浸されたマ
ット、不織布がはさみ込まれている部位を有することが
大切であり、この部位をさらに繰返したり、その少くと
も一方の側に他の構成、例えば熱可塑性樹脂とマット、
不織布のみからなる層や、熱可塑性樹脂と長繊維織編物
のみからなる層を配置してもかまわない。[0019] In such a structure, it is important to have a part in which a thermoplastic resin-impregnated mat or nonwoven fabric is sandwiched between long fiber woven and knitted fabrics impregnated with a thermoplastic resin, and this part is further Repeat or other composition on at least one side of it, e.g. thermoplastic and matte,
A layer made only of nonwoven fabric or a layer made only of thermoplastic resin and long fiber woven or knitted fabric may be arranged.
【００２０】本発明者らの研究によれば、ガラス繊維長
繊維織物／捲縮を有するアラミド短繊維からなる不織布
／ガラス繊維長繊維織物の順に積層した積層物に熱可塑
性樹脂が含浸、一体化されているものが、熱成形（賦形
）性及び成形品の機械物性、表面性が特に優れているた
め、特に好適である。According to the research conducted by the present inventors, a thermoplastic resin is impregnated into a laminate in which a glass fiber long fiber fabric, a nonwoven fabric made of crimped aramid staple fibers, and a glass fiber long fiber fabric are laminated in this order. The one described above is particularly suitable because it has particularly excellent thermoforming (shaping) properties and the mechanical properties and surface properties of the molded article.
【００２１】本発明において熱可塑性樹脂と補強繊維を
含浸、一体化する方法は特に制限はないが、長繊維織編
物とマット、不織布との積層物を熱可塑性樹脂の存在下
で加熱、加圧状態で保持する方法が一般に使用でき、こ
のような具体的方法としては熱圧プレスがある。[0021] In the present invention, there is no particular restriction on the method of impregnating and integrating the thermoplastic resin and reinforcing fibers, but a laminate of a long fiber woven or knitted fabric, a mat, or a nonwoven fabric is heated and pressurized in the presence of a thermoplastic resin. A method of holding the material in that state can generally be used, and a specific example of such method is hot press.
【００２２】熱圧プレスを使用して本発明を実施する場
合、使用する熱可塑性樹脂は粉末、織物、フィルム、シ
ートの各形態の物が用いられるが、とりわけフィルム、
シートが特に好ましい。フィルム、シートを使用する場
合は、上記長繊維織編物とマット、不織布との積層体の
最外層（上下両面）に配置するとともに、各層の間にも
介在させるのが好ましい。When carrying out the present invention using a hot press, the thermoplastic resin used may be in the form of powder, fabric, film, or sheet, but especially film,
Sheets are particularly preferred. When using a film or sheet, it is preferable to arrange it on the outermost layer (both upper and lower surfaces) of a laminate of the long fiber woven or knitted fabric, mat, or nonwoven fabric, and also to interpose it between each layer.
【００２３】含浸、一体化の温度は、使用する熱可塑性
樹脂が軟化溶融する温度以上である必要があり、該樹脂
のポリマーによっても異なるがＴｇ＋５０℃以上の温度
から熱分解温度−２０℃の温度範囲が好ましい。また、
含浸、一体化の圧力は１０ｋｇ／ｃｍ２ Ｇ以上が好ま
しい。The temperature of impregnation and integration must be higher than the temperature at which the thermoplastic resin used softens and melts, and varies depending on the polymer of the resin, but ranges from Tg + 50°C or higher to the thermal decomposition temperature - 20°C. A range is preferred. Also,
The pressure for impregnation and integration is preferably 10 kg/cm 2 G or more.
【００２４】含浸、一体化において、真空は特に必要で
はないが、真空を使用した場合、気泡が残存しにくい利
点がある。かくして溶融した熱可塑性樹脂が長繊維織編
物とマット及び／又は不織布の積層体に含浸して一体化
したシートとなり、本発明のシートとなるが、シートの
厚みは通常０．６μｍ以上である。[0024] Vacuum is not particularly necessary in impregnation and integration, but when vacuum is used, it has the advantage that air bubbles are less likely to remain. The molten thermoplastic resin is thus impregnated into the laminate of the long fiber woven or knitted fabric and the mat and/or nonwoven fabric to form an integrated sheet, which is the sheet of the present invention, and the thickness of the sheet is usually 0.6 μm or more.
【００２５】かくして得られた本発明の強化熱可塑性樹
脂シートは、機械物性が良好で成形性も優れており、従
来のスタンパブルシートと同様に種々の型状に成形（賦
形）することができる。例えば、成形により、自動車部
品、家電製品の各種ハウジング、カバン、インテリア材
、防護材、スポーツ用品等として使用される各種の成形
品とすることが可能である。The thus obtained reinforced thermoplastic resin sheet of the present invention has good mechanical properties and excellent moldability, and can be molded (shaped) into various shapes like conventional stampable sheets. can. For example, by molding, it is possible to make various molded products used as automobile parts, various housings for home appliances, bags, interior materials, protective materials, sporting goods, etc.
【００２６】このように熱圧成形した製品は、良好な機
械物性を有する製品となる。[0026] The product thus hot-pressed has good mechanical properties.
【００２７】また、着色繊維を使用した場合には意匠効
果の優れたシートとなり、化粧板、インテリア材として
特に有用なものとなる。[0027] When colored fibers are used, the sheet has an excellent design effect and is particularly useful as a decorative board or interior material.
【００２８】[0028]
【実施例】以下実施例をあげ、本発明をさらに具体的に
説明するが、本発明はこれにより何ら限定されるもので
はない。[Examples] The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited thereto in any way.
【００２９】[0029]
【実施例１】ガラス繊維平織クロス（旭ファイバーグラ
ス（株）製、ＭＳ２５３Ｅ、目付２００ｇ／ｍ２ ）２
枚の間に「コーネックス（登録商標）」のスパンレース
（帝人（株）のメタアラミド繊維「コーネックス」捲縮
短繊維をカーディングし、ウォータージェットニードル
を施したもの、目付６０ｇ／ｍ２ 、嵩高性５．０ｃｍ
３ ／ｇ）２枚をはさみ、更にこれら４枚の間にポリカ
ーボネートフィルム（帝人化成（株）製ポリカーボネー
ト樹脂「パンライト（登録商標）」Ｌ−１２５０から製
膜したもの）５枚を交互積層した材料を、２９０℃で３
０分間熱圧プレス成形して、板厚０．９ｍｍの繊維強化
ポリカーボネートを得た。得られたシートは内層に位置
する「コーネックス」の色調が表面に反映され、乳白色
のマイルドな色調のシートで、比重１．４４、曲げ強度
４４ｋｇ／ｍｍ２ 、曲げ弾性率１３７０ｋｇ／ｍｍ２
と、軽量かつ機械物性に優れたシートであった。[Example 1] Glass fiber plain weave cloth (manufactured by Asahi Fiberglass Co., Ltd., MS253E, basis weight 200 g/m2) 2
"Conex (registered trademark)" spunlace (Teijin Ltd.'s meta-aramid fiber "Conex" crimped short fibers are carded between the sheets and water jet needles are applied, basis weight 60g/m2, bulkiness) 5.0cm
3/g) were sandwiched, and five polycarbonate films (made from polycarbonate resin "Panlite (registered trademark)" L-1250 manufactured by Teijin Kasei Ltd.) were alternately laminated between these four sheets. Materials at 290℃
Hot press molding was carried out for 0 minutes to obtain a fiber-reinforced polycarbonate having a thickness of 0.9 mm. The resulting sheet has a mild milky white color, with the color of the "Conex" located in the inner layer reflected on the surface, and has a specific gravity of 1.44, bending strength of 44 kg/mm2, and flexural modulus of 1370 kg/mm2.
The sheet was lightweight and had excellent mechanical properties.
【００３０】[0030]
【実施例２】青色に原液着色した「コーネックス」捲縮
短繊維からなるスパンレース（目付６０ｇ／ｍ２ ）を
用いる以外は、実施例１と同様にして、板厚０．９ｍｍ
の繊維強化ポリカーボネートシートを得た。このシート
は、原液着色「コーネックス」のために落ち着いた、マ
イルドな青色を呈し、比重１．４５、曲げ強度４３ｋｇ
／ｍｍ２ 、曲げ弾性率１３５０ｋｇ／ｍｍ２ であっ
た。[Example 2] A board thickness of 0.9 mm was prepared in the same manner as in Example 1, except that spunlace (fabric weight 60 g/m2) made of crimped staple fibers of "Conex" dyed in blue solution was used.
A fiber-reinforced polycarbonate sheet was obtained. This sheet has a calm, mild blue color due to the undiluted solution coloring "Conex", a specific gravity of 1.45, and a bending strength of 43 kg.
/mm2, and flexural modulus of elasticity was 1350 kg/mm2.
【００３１】[0031]
【比較例】ガラス繊維平織クロス（実施例１と同じもの
）２枚の上面、中間、下面にポリカーボネートフィルム
（実施例１と同じもの）を交互積層して、実施例１と同
様に熱圧プレスして、板厚０．７５ｍｍの半透明シート
を得た。このシートは比重１．５０、曲げ強度３０ｋｇ
／ｍｍ２ 、曲げ弾性率７９０ｋｇ／ｍｍ２ であった
。[Comparative example] Polycarbonate films (same as Example 1) were alternately laminated on the top, middle, and bottom surfaces of two sheets of glass fiber plain weave cloth (same as in Example 1), and hot-press pressed in the same manner as in Example 1. A translucent sheet with a thickness of 0.75 mm was obtained. This sheet has a specific gravity of 1.50 and a bending strength of 30 kg.
/mm2, and flexural modulus of elasticity was 790 kg/mm2.
【００３２】[0032]
【発明の効果】本発明の繊維強化熱可塑性樹脂シートは
上述の通り、優れた機械物性を有するため、軽量、薄肉
、高強度が求められる分野に有効に利用される。また、
マット、不織布の材料に着色繊維を使用した場合は意匠
性に優れた物となる。[Effects of the Invention] As mentioned above, the fiber-reinforced thermoplastic resin sheet of the present invention has excellent mechanical properties, so it can be effectively used in fields where light weight, thin wall thickness, and high strength are required. Also,
When colored fibers are used as materials for mats and non-woven fabrics, they have excellent design properties.
Claims (6)
編物と耐熱性の繊維よりなるマット及び／又は不織布に
含浸して一体化されているシートであって、上記長繊維
織編物の少くとも２層と上記マット及び／又は不織布の
少くとも１層とが層状に積層されており、かつ上記各層
は上記長繊維織編物の間に上記マット及び／又は不織布
が存在するように配置されていることを特徴とする繊維
強化熱可塑性樹脂シート。1. A sheet in which a thermoplastic resin is impregnated into a long fiber woven or knitted fabric of glass fibers and a mat and/or a nonwoven fabric made of heat-resistant fibers, the sheet comprising at least the above-mentioned long fiber woven or knitted fabric. Two layers and at least one layer of the mat and/or nonwoven fabric are laminated in a layered manner, and each of the layers is arranged such that the mat and/or nonwoven fabric is present between the long fiber woven or knitted fabrics. A fiber-reinforced thermoplastic resin sheet characterized by:
特徴とする請求項１記載の繊維強化熱可塑性樹脂シート
。2. The fiber-reinforced thermoplastic resin sheet according to claim 1, wherein the heat-resistant fibers are colored.
捲縮糸であり、熱可塑性樹脂の熱成形温度下でその物性
が実質的に損われない繊維であることを特徴とする請求
項１又は２記載の繊維強化熱可塑性樹脂シート。[Claim 3] The heat-resistant fiber is a crimped yarn and/or an uncrimped yarn, and is characterized in that its physical properties are not substantially impaired at the thermoforming temperature of the thermoplastic resin. The fiber reinforced thermoplastic resin sheet according to claim 1 or 2.
は不織布の嵩高性が少なくとも３ｃｍ３ ／ｇであるこ
とを特徴とする請求項１，２又は３記載の繊維強化熱可
塑性樹脂シート。4. The fiber-reinforced thermoplastic resin sheet according to claim 1, wherein the mat and/or nonwoven fabric made of heat-resistant fibers has a bulkiness of at least 3 cm 3 /g.
２層と耐熱性の繊維よりなるマット及び／又は不織布の
少くとも１層とを、上記長繊維織編物の間に上記マット
及び／又は不織布が位置するように層状に積層し、該積
層体を、熱可塑性樹脂の存在下に、該樹脂が軟化溶融す
る温度以上で熱圧成形することを特徴とする繊維強化熱
可塑性樹脂シートの製造法。5. At least two layers of long fiber woven or knitted glass fibers and at least one layer of a mat and/or nonwoven fabric made of heat-resistant fibers are placed between the long fiber woven or knitted material. Production of a fiber-reinforced thermoplastic resin sheet, characterized in that the nonwoven fabric is laminated in layers so that the nonwoven fabric is positioned, and the laminate is thermoformed in the presence of a thermoplastic resin at a temperature higher than the temperature at which the resin softens and melts. Law.
は不織布を内側にして、その両側からはさむようにガラ
ス繊維の長繊維織編物を配置し、更にこれらマット及び
／又は不織布及び長繊維織編物の各層の間及び最外層に
、シート、フィルム、織編物、粉末の少くとも１種以上
の形態の組合せからなる熱可塑性樹脂を配置してなる基
本積層構成単位を少くとも１単位以上含んでなる積層体
を、使用する熱可塑性樹脂が軟化、溶融する温度以上乃
至熱分解温度−２０℃の温度範囲で、かつ圧力１０ｋｇ
／ｃｍ２ Ｇ以上で熱圧成形し、熱可塑性樹脂を含浸さ
せ一体化することを特徴とする繊維強化熱可塑性樹脂シ
ートの製造方法。6. A mat and/or nonwoven fabric made of heat-resistant fibers is placed on the inside, and long fiber woven or knitted fabrics of glass fibers are placed between the mats and/or nonwoven fabrics from both sides, and these mats, nonwoven fabrics, and long fiber woven or knitted fabrics are further placed. At least one basic laminated unit consisting of a thermoplastic resin made of a combination of at least one of sheet, film, woven or knitted fabric, and powder is arranged between each layer and in the outermost layer. The laminate is heated in a temperature range from the softening and melting temperature of the thermoplastic resin used to the thermal decomposition temperature of -20°C, and at a pressure of 10 kg.
1. A method for producing a fiber-reinforced thermoplastic resin sheet, which comprises thermoforming at a pressure of /cm2 G or more, impregnating it with a thermoplastic resin, and integrating it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3055551A JPH04272841A (en) | 1991-02-28 | 1991-02-28 | Fiber-reinforced thermoplastic resin sheet and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3055551A JPH04272841A (en) | 1991-02-28 | 1991-02-28 | Fiber-reinforced thermoplastic resin sheet and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04272841A true JPH04272841A (en) | 1992-09-29 |
Family
ID=13001843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3055551A Pending JPH04272841A (en) | 1991-02-28 | 1991-02-28 | Fiber-reinforced thermoplastic resin sheet and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04272841A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08310186A (en) * | 1995-05-17 | 1996-11-26 | Kokuyo Co Ltd | Drawing board |
| JP2003080519A (en) * | 2001-09-11 | 2003-03-19 | Nippon Gmt Kk | Glass fiber composite mat for glass fiber-reinforced stampable sheet and manufacturing method therefor, glass fiber-reinforced stampable sheet and manufacturing method therefor and molded product |
| JP2007530806A (en) * | 2004-03-23 | 2007-11-01 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Reinforced nonwoven fireproof fabric, method for producing such fabric, and article fireproofed therewith |
| JP2015136924A (en) * | 2014-01-24 | 2015-07-30 | 日本写真印刷株式会社 | Decorative fiber-reinforced sheet, production method thereof, and decorative formed article |
| JP2015528070A (en) * | 2012-07-03 | 2015-09-24 | ザ・ボーイング・カンパニーＴｈｅＢｏｅｉｎｇ Ｃｏｍｐａｎｙ | Apparatus for controlling stress of bonding at low temperature and manufacturing method thereof |
| US10005570B2 (en) | 2008-07-18 | 2018-06-26 | The Boeing Company | Strong bonded joints for cryogenic applications |
| US10399709B2 (en) | 2008-07-18 | 2019-09-03 | The Boeing Company | Method of making a device for controlling stress in joints at cryogenic temperatures |
| US10407188B2 (en) | 2008-07-18 | 2019-09-10 | The Boeing Company | Composite tank having joint with softening strip |
| US10562239B2 (en) | 2010-07-22 | 2020-02-18 | The Boeing Company | Method for forming a fabric preform insert for a composite tank Y-joint |
-
1991
- 1991-02-28 JP JP3055551A patent/JPH04272841A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08310186A (en) * | 1995-05-17 | 1996-11-26 | Kokuyo Co Ltd | Drawing board |
| JP2003080519A (en) * | 2001-09-11 | 2003-03-19 | Nippon Gmt Kk | Glass fiber composite mat for glass fiber-reinforced stampable sheet and manufacturing method therefor, glass fiber-reinforced stampable sheet and manufacturing method therefor and molded product |
| JP2007530806A (en) * | 2004-03-23 | 2007-11-01 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Reinforced nonwoven fireproof fabric, method for producing such fabric, and article fireproofed therewith |
| US10005570B2 (en) | 2008-07-18 | 2018-06-26 | The Boeing Company | Strong bonded joints for cryogenic applications |
| US10399709B2 (en) | 2008-07-18 | 2019-09-03 | The Boeing Company | Method of making a device for controlling stress in joints at cryogenic temperatures |
| US10407188B2 (en) | 2008-07-18 | 2019-09-10 | The Boeing Company | Composite tank having joint with softening strip |
| US10562239B2 (en) | 2010-07-22 | 2020-02-18 | The Boeing Company | Method for forming a fabric preform insert for a composite tank Y-joint |
| JP2015528070A (en) * | 2012-07-03 | 2015-09-24 | ザ・ボーイング・カンパニーＴｈｅＢｏｅｉｎｇ Ｃｏｍｐａｎｙ | Apparatus for controlling stress of bonding at low temperature and manufacturing method thereof |
| JP2015136924A (en) * | 2014-01-24 | 2015-07-30 | 日本写真印刷株式会社 | Decorative fiber-reinforced sheet, production method thereof, and decorative formed article |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0285338B1 (en) | Fire retardant structural textile panel | |
| KR100411355B1 (en) | Reinforcing fiber base for composite material | |
| US5667857A (en) | Toe puff for safety shoe | |
| US4726987A (en) | Fire retardant structural textile panel | |
| US5316834A (en) | Fiber-reinforced thermoplastic sheet | |
| US20190039329A1 (en) | Flexurally Rigid Laminated Sheets, Parts Molded Therefrom and Method of Fabrication | |
| US4931358A (en) | Fiber-reinforced thermoplastic panels | |
| EP0646454B1 (en) | Fibre reinforced thermoplastic sheet | |
| WO2013089235A1 (en) | Fibre-reinforced resin moulding, and vehicle interior material using same | |
| IE76323B1 (en) | Manufacture of a three-dimensionally shaped textile material and use thereof | |
| JPH02134233A (en) | Manufacture of moldable composite material | |
| KR950018182A (en) | Prepreg and its manufacturing method | |
| US4471018A (en) | Thermoplastic laminate having masked surface fabric veil layer | |
| KR101484371B1 (en) | Laminate including thermoplastic resin impregnated continuous carbon fiber and method of preparing the same | |
| JPH04272841A (en) | Fiber-reinforced thermoplastic resin sheet and manufacture thereof | |
| US20100108439A1 (en) | Laminated acoustic absorption sheet with flame retardant | |
| JP7442123B2 (en) | Fiber-reinforced composite sandwich core and method for producing fiber-reinforced composite sandwich core | |
| JPH05117411A (en) | Fiber-reinforced thermoplastic resin sheet and its production | |
| JP2005313455A (en) | Multi-axis fabric, its production method, preform material, and fiber-reinfoced plastic molding | |
| JP5547412B2 (en) | Planar composite | |
| GB2073658A (en) | Preparation of composite laminated sheet | |
| JP2013010255A (en) | Thermoplastic resin composite material | |
| JPH03286856A (en) | Resin molded product | |
| JP5777972B2 (en) | Fiber-reinforced resin molded body and vehicle interior material using the same | |
| CN213733866U (en) | Novel flame-retardant non-woven fabric |