JPH05476A - Manufacture of resin-bonded laminated sheet with low specific gravity - Google Patents
Manufacture of resin-bonded laminated sheet with low specific gravityInfo
- Publication number
- JPH05476A JPH05476A JP3153305A JP15330591A JPH05476A JP H05476 A JPH05476 A JP H05476A JP 3153305 A JP3153305 A JP 3153305A JP 15330591 A JP15330591 A JP 15330591A JP H05476 A JPH05476 A JP H05476A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- specific gravity
- resin
- sheet
- binder
- 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.)
- Granted
Links
- 230000005484 gravity Effects 0.000 title abstract description 26
- 238000004519 manufacturing process Methods 0.000 title description 8
- 239000012779 reinforcing material Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 22
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 abstract description 19
- 239000011521 glass Substances 0.000 abstract description 10
- 239000003822 epoxy resin Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 229920000647 polyepoxide Polymers 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 5
- 230000000717 retained effect Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 2
- 229920002050 silicone resin Polymers 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 229920003002 synthetic resin Polymers 0.000 description 8
- 239000000057 synthetic resin Substances 0.000 description 8
- 239000003365 glass fiber Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電気絶縁板、板状断
熱材その他の軽量板状素材として用いられる低比重樹脂
積層板の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a low specific gravity resin laminated plate used as an electric insulating plate, a plate-shaped heat insulating material or other lightweight plate-shaped material.
【０００２】[0002]
【従来の技術】一般に、合成樹脂積層板を製造するに
は、まず、ガラス繊維、カーボン繊維その他の合成繊維
もしくは天然繊維からなる編織布また不織布を補強材と
し、これに所要濃度の溶液またはエマルジョン化した熱
硬化性樹脂を含浸する。そして、得られたウェブ片を複
数枚積層して、上下対の熱盤を備えたホットプレスに収
容し、所要の圧力下で加熱して硬化成形している。2. Description of the Related Art Generally, in order to manufacture a synthetic resin laminate, a knitted or woven fabric made of glass fibers, carbon fibers or other synthetic fibers or natural fibers is used as a reinforcing material, and a solution or emulsion having a required concentration is added thereto. Impregnated thermosetting resin. Then, a plurality of the obtained web pieces are laminated, housed in a hot press equipped with a pair of upper and lower heating plates, and heated and cured under a required pressure for molding.
【０００３】このように成形される合成樹脂積層板は、
主に補強材との組み合わせで所要の比重に調整されてお
り、例えばガラス繊維を補強材にしたときの比重は約
１.8〜２.0であり、綿布を補強材としたとの比重は約1.
３５〜１.4である。また、このような合成樹脂積層板を
さらに軽量化するため、主要バインダ成分である熱硬化
性樹脂に、低比重の充填材を均一に分散させるかまたは
補強材に対するバインダの含浸量や濃度を調節する手法
も考えられる。The synthetic resin laminated plate molded in this way is
It is adjusted to the required specific gravity mainly in combination with the reinforcing material. For example, the specific gravity when glass fiber is used as the reinforcing material is about 1.8 to 2.0, and the specific gravity when using cotton cloth as the reinforcing material is About 1.
35 to 1.4. In order to further reduce the weight of such synthetic resin laminates, a thermosetting resin, which is the main binder component, is uniformly dispersed with a filler having a low specific gravity, or the impregnation amount and concentration of the binder with respect to the reinforcing material are adjusted. A method of doing is also possible.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した合成
樹脂積層板をより軽量化するバインダーの充填材とし
て、泡状の空気を包含した微粒子状のバルーンを使用す
ると、このものが液相の合成樹脂中に均一に分散しない
ため、含浸によって補強材に効率よく保持されないとい
う問題点がある。However, when a fine particle balloon containing bubble-like air is used as a binder filler for making the above-mentioned synthetic resin laminated plate lighter, this compound is synthesized in a liquid phase. Since it is not uniformly dispersed in the resin, there is a problem in that it is not efficiently retained by the reinforcing material by impregnation.
【０００５】また、成形される積層板の比重を調整する
他の手法として、ロール体から連続供給されるウェブ状
の繊維製補強材に対するバインダの含浸量や濃度を制御
する手法があるが、ウェブの進行速度、バインダの流動
性や粘性等の多くの要因が関与しており、そのような制
御は煩雑で他に適当な手法がないという問題点もある。Another method of adjusting the specific gravity of the laminated plate to be formed is a method of controlling the impregnation amount and concentration of the binder in the web-shaped fiber reinforcing material continuously supplied from the roll body. Many factors such as the advancing speed, fluidity and viscosity of the binder are involved, and there is a problem that such control is complicated and there is no other suitable method.
【０００６】この発明は上記した従来の問題点を解決
し、低比重樹脂積層板を製造するときに、バインダ中に
低比重の充填材を均一に分散させ、しかもこのバインダ
の補強材への保持量すなわち積層板の比重調整を簡便な
手法で行ない得るようにすることを課題としている。The present invention solves the above-mentioned conventional problems, and when a low specific gravity resin laminate is manufactured, a filler having a low specific gravity is uniformly dispersed in a binder, and the binder is retained on a reinforcing material. An object is to make it possible to adjust the amount, that is, the specific gravity of the laminated plate by a simple method.
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
め、この発明は繊維製補強材表面に熱硬化性樹脂粉末と
有機質バルーン、無機質バルーンのそれぞれ単独または
両者併用したバルーンの混合物を付着させ、ついで加熱
および加圧下で前記混合物を前記補強材に仮着してシー
ト状材料とし、このシート状材料を複数枚積層して加熱
および加圧下で融着一体化する手段を採用したのであ
る。In order to solve the above-mentioned problems, the present invention attaches a thermosetting resin powder and an organic balloon, an inorganic balloon, or a mixture of balloons in which both are used in combination, to the surface of a fiber reinforcing material. Then, a means for temporarily adhering the mixture to the reinforcing material under heat and pressure to form a sheet-like material, and laminating a plurality of the sheet-like materials for fusion-bonding under heat and pressure is adopted.
【０００８】以下、その詳細を述べる。The details will be described below.
【０００９】まず、この発明に用いる繊維製補強材は、
ガラス繊維、カーボン繊維、ロックウール、金属繊維等
の無機繊維もしくはウィスカまたは綿、麻その他の天然
繊維もしくは合成繊維からなる有機質繊維をその材料と
してシート状の編織布または不織布としたものであっ
て、成形後に所要の機械的強度を有するものが好まし
い。First, the fiber reinforcing material used in the present invention is
Inorganic fibers such as glass fibers, carbon fibers, rock wool, metal fibers or whiskers or organic fibers made of cotton, hemp or other natural fibers or synthetic fibers as a material, and made into a sheet-shaped knitted or non-woven fabric, Those having the required mechanical strength after molding are preferred.
【００１０】つぎに、この発明に用いる熱硬化性樹脂粉
末は、特にその種類を限定するものでなく、たとえば、
フェノール樹脂、エポキシ樹脂、シリコーン樹脂、ポリ
エステル樹脂、メラミン樹脂、熱硬化型のポリイミド樹
脂その他の熱硬化性樹脂のそれぞれ単独または複数種混
合した樹脂粉末が挙げられる。Next, the thermosetting resin powder used in the present invention is not particularly limited in type, and for example,
Examples of the resin powder include a phenol resin, an epoxy resin, a silicone resin, a polyester resin, a melamine resin, a thermosetting polyimide resin, and other thermosetting resins, which may be used alone or in combination.
【００１１】また、この発明に用いる有機質バルーンま
たは無機質バルーンは、その材質を特に限定するもので
なく、合成樹脂、セルロースその他の有機質、シラス、
アルミナその他の無機質を材料として造粒時に極微泡を
含有させたバルーン、たとえばプラスチックバルーン、
ガラスバルーン、シラスバルーン、アルミナバルーンな
どであって、積層板の用途に応じて、耐熱性、耐酸性、
剛性、耐久性を備えたものを選択使用する。このうちガ
ラスバルーンの粒径は、例えば、１０〜１２０μｍのも
のが好ましく、市販のものとしては旭ガラス社製：セル
スターが挙げられる。また、ビニリデンクロライドとア
クリロニトリルのコポリマーからなる有機質バルーンの
粒径は、１０〜１００μｍ（中心値４０〜６０μｍ）を
例示できる。このような有機質バルーンまたは無機質バ
ルーンの粒径は、いずれのものでも粒度分布の範囲が狭
いほど分散が均一で好ましいのはいうまでもない。The organic or inorganic balloon used in the present invention is not particularly limited in its material, and synthetic resins, cellulose and other organic materials, shirasu,
A balloon containing ultrafine bubbles at the time of granulation using alumina or other inorganic material, for example, plastic balloon,
Glass balloons, shirasu balloons, alumina balloons, etc., depending on the application of the laminate, heat resistance, acid resistance,
Select and use one with rigidity and durability. Of these, the particle diameter of the glass balloon is preferably, for example, 10 to 120 μm, and a commercially available product is Asahi Glass Co., Ltd .: Cellstar. Further, the particle diameter of the organic balloon made of a copolymer of vinylidene chloride and acrylonitrile is, for example, 10 to 100 μm (center value is 40 to 60 μm). Needless to say, as for the particle diameter of such an organic balloon or inorganic balloon, the smaller the particle size distribution range, the more uniform the dispersion.
【００１２】前記した熱硬化性樹脂とガラスバルーンの
配合割合は、重量比で１０：３から１０：７.5程度が好
ましいが、この範囲以外でも積層板の所要の比重に合わ
せて調整することができる。しかし、１：１を越えてガ
ラスバルーンの配合割合が増えると、加圧成形時にこの
ものが破砕される可能性が極めて大きくなる。The mixing ratio of the above-mentioned thermosetting resin and glass balloon is preferably about 10: 3 to 10: 7.5 in weight ratio, but the ratio other than this range should be adjusted according to the required specific gravity of the laminate. You can However, if the compounding ratio of the glass balloon increases beyond 1: 1, the possibility of crushing the glass balloon during pressure molding becomes extremely large.
【００１３】また、熱硬化性樹脂とガラスバルーンを配
合したバインダの繊維製シート状補強材表面への仮着に
必要な加熱ロールの温度範囲は６０〜１６０℃であり、
例えば熱硬化性樹脂としてエポキシ樹脂を選択した場合
は約１４０℃が適温といえる。仮着に必要な加圧ロール
の線圧は０.2〜４.0kg／cm程度である。このようなシー
ト状材料を複数枚積層した際の所要加圧下での融着温度
は、１３０〜１８０℃が好ましく、例えばエポキシ樹脂
を選択使用すれば、１７５℃が適温である。Further, the temperature range of the heating roll required for temporarily adhering the binder containing the thermosetting resin and the glass balloon to the surface of the sheet-like reinforcing material made of fiber is 60 to 160 ° C.,
For example, when an epoxy resin is selected as the thermosetting resin, it can be said that a suitable temperature is about 140 ° C. The linear pressure of the pressure roll required for temporary attachment is about 0.2 to 4.0 kg / cm. When a plurality of such sheet materials are laminated, the fusing temperature under the required pressure is preferably 130 to 180 ° C., and if epoxy resin is selected and used, 175 ° C. is a suitable temperature.
【００１４】[0014]
【作用】この発明の低比重樹脂積層板の製造方法では、
熱硬化性樹脂粉末と有機質バルーン、無機質バルーンの
それぞれ単独または両者併用したバルーンの混合物から
なるバインダが粉粒体状であるため、混合割合に拘ら
ず、これらが相溶性よく均一分散し、繊維製シート状補
強材に保持され易い。また、このような保持を行なうと
き、補強材表面に前記バインダを付着させた後、加熱お
よび加圧下に仮着しており、バインダの厚みを前記付着
時に変更するだけで、その後に成形される樹脂積層板の
比重を調整できる。In the method for producing a low specific gravity resin laminate of the present invention,
Since the binder consisting of a mixture of the thermosetting resin powder, the organic balloon, and the inorganic balloon, either alone or in combination, is in the form of powder and granules, regardless of the mixing ratio, these are uniformly dispersed with good compatibility and made of fiber. It is easily retained by the sheet-shaped reinforcing material. Further, when performing such holding, after the binder is attached to the surface of the reinforcing material, the binder is temporarily attached under heating and pressure, and the thickness of the binder is simply changed at the time of attachment, and then the binder is molded. The specific gravity of the resin laminate can be adjusted.
【００１５】[0015]
【実施例】この発明の実施例を以下、図面に基づいて説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１６】まず、ウェブ状のガラス繊維織布からなる
補強材Ｐを３〜４ｍ／分の一定速度でロール体１から繰
り出し、上・下面開口の枠型容器２の下面に沿わせてテ
ンションがかる状態で進行させる。このとき補強材Ｐの
下面にはロール体３から引き出されたポリエステル製剥
離シートＳ1 を同じくテンションがかかる状態で密接さ
せ、補強材Ｐと同じ速度で移送した。枠型容器２の上方
には、ホッパー４、さらに上方には回転式混合機５が設
置されており、エポキシ樹脂粉末とガラスバルーン（旭
ガラス社製：セルスター、粒径５２μｍ、比重０.4５）
を重量比で概ね１０：７.5に配合した混合物Ｍを枠型容
器２内に連続的に供給した。First, a reinforcing material P made of a web-shaped glass fiber woven fabric is fed out from the roll body 1 at a constant speed of 3 to 4 m / min, and tension is applied along the lower surface of the frame-shaped container 2 having upper and lower surface openings. Advance in the state. At this time, the polyester release sheet S 1 pulled out from the roll body 3 was brought into close contact with the lower surface of the reinforcing material P under the same tension, and transferred at the same speed as the reinforcing material P. A hopper 4 is installed above the frame-shaped container 2, and a rotary mixer 5 is installed above the frame-shaped container 2. The epoxy resin powder and glass balloon (Asahi Glass Co., Ltd .: Cellstar, particle size 52 μm, specific gravity 0.45)
A mixture M in which was mixed at a weight ratio of about 10: 7.5 was continuously supplied into the frame-shaped container 2.
【００１７】枠型容器２の下流側の端部には補強材Ｐの
幅方向にわたって均一な高さ（１.4mm）に調整した厚み
制御ギャップ６が形成されており、補強材Ｐの表面に厚
さ約１.1３mmの混合物粉末層を均一に形成した。厚み制
御ギャップ６は、容器２の下流側の側面を上下方向にス
ライド可能としてその高さを変えることにより、所要の
厚みに混合物粉末層を適宜調整して付着してもよい。ま
た、別途剥離シートＳ2 をロール体７から引き出して、
混合物粉末層上面に添着した。At the downstream end of the frame-shaped container 2, there is formed a thickness control gap 6 adjusted to a uniform height (1.4 mm) over the width direction of the reinforcing material P, and the surface of the reinforcing material P is formed. A mixture powder layer having a thickness of about 1.13 mm was uniformly formed. The thickness control gap 6 may be formed by making the downstream side surface of the container 2 slidable in the vertical direction and changing the height thereof so that the mixture powder layer is appropriately adjusted and attached to a desired thickness. Separately, pull out the release sheet S 2 from the roll body 7,
The mixture was attached to the upper surface of the powder layer.
【００１８】このようにして得られた均一な混合物粉末
層を有するウェブ状補強材Ｐは、剥離シートＳ1 および
Ｓ2 で上下面を挟まれた状態で、１４０℃に加熱された
一対の加熱ロール８および９の周面に通過させ、加圧ロ
ール１０による線圧２kg／cmの加圧下で加熱した。この
とき、混合物粉末中のエポキシ樹脂は部分的に溶融して
ガラスバルーンと一体化した状態でウェブ状補強材Ｐに
一部含浸しながら固着され、半硬化状態のプリプレグＰ
1 が形成された。The web-shaped reinforcing material P having the uniform mixture powder layer thus obtained is heated to 140 ° C. while being sandwiched between the upper and lower surfaces by the release sheets S 1 and S 2. The rolls 8 and 9 were passed through the peripheral surface and heated under a pressure of a linear pressure of 2 kg / cm by a pressure roll 10. At this time, the epoxy resin in the mixture powder is partially melted and fixed while partially impregnating the web-shaped reinforcing material P in a state where it is integrated with the glass balloon, and the semi-cured prepreg P
1 was formed.
【００１９】プリプレグＰ1 は２枚の刃が対抗して接離
する切断装置１１によって、所定の大きさ（１０００mm
角）の方形状に切断してシート状材料Ｐ2 とし、剥離シ
ートＳ1 、Ｓ2 を剥してから複数枚を積層してホットプ
レス１２に収容して融着成形した。The prepreg P 1 has a predetermined size (1000 mm) by a cutting device 11 in which two blades come in contact with and separate from each other.
The sheet material P 2 was cut into a square shape into squares, the release sheets S 1 and S 2 were peeled off, a plurality of sheets were stacked, housed in a hot press 12, and fusion-molded.
【００２０】図２に示すようにホットプレス１２は、複
数の加熱・加圧盤１３を積み重ねた構造であり、それぞ
れの間にシート状材料Ｐ2 を複数枚積層配置して５０kg
／cm2 の圧力下で１７５℃に加熱し、これらを融着一体
化した。The hot press 12 as shown in FIG. 2 is a structure in which stacked plurality of heat-pressing plates 13, 50 kg and the sheet material P 2 between each arranged plurally stacked
It was heated to 175 ° C. under a pressure of / cm 2 to fuse and integrate them.
【００２１】厚板の成形に際しては、シート状材料Ｐ2
を所望の成形品に重量換算し、その換算量に相当する枚
数のシート状材料Ｐ2 を重ねて加熱・加圧盤１３間に収
容した。このとき、成形品の平面精度をより高める必要
のある場合には、鏡面板１４を介して加熱盤で挾持し
た。このようにしてホットプレス１２による加熱成形を
経たシート状材料Ｐ2 の積層体は、つぎに切断機１５に
よって所定の大きさに切断され、最終製品である低比重
樹脂積層板Ａ（比重1.２１）とした。When forming a thick plate, the sheet material P 2
Was weight-converted into a desired molded product, and a number of sheet-like materials P 2 corresponding to the converted amount were stacked and accommodated between the heating / pressurizing plates 13. At this time, when it was necessary to further improve the plane accuracy of the molded product, it was held by a heating plate via the mirror plate 14. The laminated body of the sheet-shaped material P 2 which has been subjected to the heat molding by the hot press 12 in this manner is then cut into a predetermined size by the cutting machine 15, and the low specific gravity resin laminated board A (specific gravity 1. 21).
【００２２】また、図１に鎖線で示すように、剥離シー
トＳ1 、およびＳ2 は、無端環状として、それぞれ加圧
ロール１０または加熱ロール９の周面を経由するよう周
回させると、これらをプリプレグＰ1 の上下面から自動
的に剥すことができ、しかも剥離シートＳ1 、Ｓ2 の再
使用によって生産コストが低減する。なお、上記した剥
離シートＳ1 、Ｓ2 はポリエステル製のものを示した
が、その他の合成樹脂製または紙であってよいのはもち
ろんである。Further, as shown by the chain line in FIG. 1, the release sheets S 1 and S 2 are endless rings, and when they are passed around the peripheral surface of the pressure roll 10 or the heating roll 9, respectively, The prepreg P 1 can be automatically peeled from the upper and lower surfaces, and the production cost is reduced by reusing the release sheets S 1 and S 2 . Although the release sheets S 1 and S 2 are made of polyester, they may be made of other synthetic resin or paper.
【００２３】また、図３に示すように、シート状材料Ｐ
2 を複数枚積層配置した際、最上層および最下層にはガ
ラス織布等にエポキシ樹脂その他の熱硬化性樹脂を含浸
した従来のプリプレグシートＰ3 を積層し、積層板Ａ1
の機械的強度を高めてもよい。さらに、図４に示すよう
に、複数枚積層したシート状材料Ｐ2 の中間層にプリプ
レグシートＰ3 を適宜配置すれば、積層板Ａ2 の厚みが
増しても、その機械的強度が十分に対応するものとな
る。Further, as shown in FIG. 3, the sheet material P
When a plurality of sheets 2 are arranged in layers, a conventional prepreg sheet P 3 obtained by impregnating glass cloth or the like with epoxy resin or other thermosetting resin is laminated on the uppermost layer and the lowermost layer, and laminated plate A 1
The mechanical strength of may be increased. Further, as shown in FIG. 4, if the prepreg sheet P 3 is appropriately arranged in the intermediate layer of the sheet-shaped material P 2 laminated, a sufficient mechanical strength can be obtained even if the thickness of the laminated plate A 2 is increased. It will correspond.
【００２４】[0024]
【効果】この発明は、以上説明したように、低比重の充
填材である有機質バルーン、無機質バルーンのそれぞれ
単独または両者併用したバルーンを熱硬化性樹脂粉末に
所要の割合で均一に分散して、補強材に保持させること
ができるので、顕著な軽量化を図ることができ、また、
バインダの付着量の調整も容易であるから、比重調整を
容易に行なうことができる。したがって、製造工程の効
率が良く、バインダーの配合容易性によって製造コスト
の低減も図れることとなり、この発明の産業上の利用価
値はきわめて高いものであるということができる。[Effect] As described above, according to the present invention, a balloon having a low specific gravity such as an organic balloon or an inorganic balloon, which is used alone or in combination, is uniformly dispersed in a thermosetting resin powder at a required ratio. Since it can be held by the reinforcing material, it can be significantly reduced in weight, and
Since it is easy to adjust the adhesion amount of the binder, the specific gravity can be easily adjusted. Therefore, the efficiency of the manufacturing process is good, and the manufacturing cost can be reduced due to the ease of compounding the binder, and it can be said that the industrial utility value of the present invention is extremely high.
【図１】実施例の低比重樹脂積層板の製造工程の説明図FIG. 1 is an explanatory view of a manufacturing process of a low specific gravity resin laminated plate of an example.
【図２】同上のホットプレスの要部説明図FIG. 2 is an explanatory view of the main part of the hot press described above.
【図３】シート状材料の積層状態を示す同上の説明図FIG. 3 is an explanatory diagram of the same as above, showing a laminated state of sheet-like materials.
【図４】シート状材料の他の積層状態を示す同上の説明
図FIG. 4 is an explanatory diagram of the same as above, showing another laminated state of the sheet material.
Ｐ 補強材 Ｐ2 シート状材料 Ｍ 混合物 Ａ、Ａ1 、Ａ2 低比重樹脂積層板P Reinforcing material P 2 Sheet material M Mixture A, A 1 , A 2 Low specific gravity resin laminate
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年２月２８日[Submission date] February 28, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】このように成形される合成樹脂積層板は、
主に補強材との組み合わせで所要の比重に調整されてお
り、例えばガラス繊維を補強材にしたときの比重は約
１．８〜２．０であり、綿布を補強材としたときの比重
は約１．３５〜１．４である。また、このような合成樹
脂積層板をさらに軽量化するため、主要バインダ成分で
ある熱硬化性樹脂に、低比重の充填材を均一に分散させ
るかまたは補強材に対するバインダの含浸量や濃度を調
節する手法も考えられる。The synthetic resin laminated plate molded in this way is
Is adjusted to a desired specific gravity in combination with mainly the reinforcing material, the specific gravity when the glass fiber reinforcement is about 1.8 to 2.0, the specific gravity of the feeder to have a cotton cloth with reinforcing material Is about 1.35 to 1.4. In order to further reduce the weight of such synthetic resin laminates, a thermosetting resin, which is the main binder component, is uniformly dispersed with a filler having a low specific gravity, or the impregnation amount and concentration of the binder with respect to the reinforcing material are adjusted. A method of doing is also possible.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００７[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
め、この発明は繊維製補強材表面に熱硬化性樹脂粉末と
有機質バルーン、無機質バルーンのそれぞれ単独または
両者併用したバルーンの混合物を付着させ、ついで加熱
および加圧下で前記混合物を前記補強材に仮着してシー
ト状材料とし、このシート状材料を複数枚積層して加熱
および加圧下で融着一体化する手段を採用したのであ
る。または、前記複数枚積層したシート状材料の最上
層、最下層およびこれらの中間層から選ばれる１以上の
層に繊維製補強材に熱硬化性樹脂を含浸したプリプレグ
シートを積層し、加熱および加圧下で融着一体化する手
段を採用することもできる。 In order to solve the above-mentioned problems, the present invention attaches a thermosetting resin powder and an organic balloon, an inorganic balloon, or a mixture of balloons in which both are used in combination, to the surface of a fiber reinforcing material. Then, a means for temporarily adhering the mixture to the reinforcing material under heat and pressure to form a sheet-like material, and laminating a plurality of the sheet-like materials for fusion-bonding under heat and pressure is adopted. Alternatively, the uppermost of the sheet-shaped materials laminated above
One or more layers selected from a layer, a bottom layer and these intermediate layers.
Prepreg with a layer of fiber reinforcement impregnated with thermosetting resin
Hands that stack sheets and fuse them together under heat and pressure
It is also possible to employ steps.
Claims (1)
有機質バルーン、無機質バルーンのそれぞれ単独または
両者併用したバルーンの混合物を付着させ、ついで加熱
および加圧下で前記混合物を前記補強材に仮着してシー
ト状材料とし、このシート状材料を複数枚積層して加熱
および加圧下で融着一体化する低比重樹脂積層板の製造
方法。Claim: What is claimed is: 1. A thermosetting resin powder and a mixture of an organic balloon and an inorganic balloon, which are used alone or in combination, are attached to the surface of a fiber reinforcing material, and then the mixture is heated and pressurized. Is temporarily attached to the reinforcing material to form a sheet-like material, and a plurality of the sheet-like materials are laminated and fused and integrated under heat and pressure to produce a low-density resin laminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3153305A JP2612109B2 (en) | 1991-06-25 | 1991-06-25 | Manufacturing method of low specific gravity resin laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3153305A JP2612109B2 (en) | 1991-06-25 | 1991-06-25 | Manufacturing method of low specific gravity resin laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05476A true JPH05476A (en) | 1993-01-08 |
| JP2612109B2 JP2612109B2 (en) | 1997-05-21 |
Family
ID=15559579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3153305A Expired - Lifetime JP2612109B2 (en) | 1991-06-25 | 1991-06-25 | Manufacturing method of low specific gravity resin laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612109B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769939B1 (en) * | 2001-12-21 | 2007-10-24 | 주식회사 성진케미칼 | Silicone Fabric Forming Equipment |
| JP2010094964A (en) * | 2008-10-16 | 2010-04-30 | Korea Electrotechnology Research Inst | Method of manufacturing functional material by slice-laminating pressing method, and functional material manufactured by the manufacturing method |
| JP2013056473A (en) * | 2011-09-08 | 2013-03-28 | Nikko Kasei Kk | Low density resin laminated sheet and method for manufacturing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58205758A (en) * | 1982-05-24 | 1983-11-30 | レ−ベンユ−テイリテイ株式会社 | Sheet material for heating and pressure molding |
| JPS60125661A (en) * | 1983-12-12 | 1985-07-04 | 三菱瓦斯化学株式会社 | Manufacturing method for laminates |
-
1991
- 1991-06-25 JP JP3153305A patent/JP2612109B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58205758A (en) * | 1982-05-24 | 1983-11-30 | レ−ベンユ−テイリテイ株式会社 | Sheet material for heating and pressure molding |
| JPS60125661A (en) * | 1983-12-12 | 1985-07-04 | 三菱瓦斯化学株式会社 | Manufacturing method for laminates |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769939B1 (en) * | 2001-12-21 | 2007-10-24 | 주식회사 성진케미칼 | Silicone Fabric Forming Equipment |
| JP2010094964A (en) * | 2008-10-16 | 2010-04-30 | Korea Electrotechnology Research Inst | Method of manufacturing functional material by slice-laminating pressing method, and functional material manufactured by the manufacturing method |
| JP2013056473A (en) * | 2011-09-08 | 2013-03-28 | Nikko Kasei Kk | Low density resin laminated sheet and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2612109B2 (en) | 1997-05-21 |
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