JPH1024430A - Manufacturing method of long fiber reinforced polyurethane foam - Google Patents
Manufacturing method of long fiber reinforced polyurethane foamInfo
- Publication number
- JPH1024430A JPH1024430A JP8183230A JP18323096A JPH1024430A JP H1024430 A JPH1024430 A JP H1024430A JP 8183230 A JP8183230 A JP 8183230A JP 18323096 A JP18323096 A JP 18323096A JP H1024430 A JPH1024430 A JP H1024430A
- Authority
- JP
- Japan
- Prior art keywords
- long fiber
- long
- fiber
- polyurethane foam
- liquid
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
(57)【要約】
【課題】 製品に変形、歪みが発生しない長繊維補強ポ
リウレタン発泡成形体の製造方法を提供する。
【解決手段】 多数の一方向に引き揃えられた長繊維束
をその長手方向に連続的に進行させ、進行する上記長繊
維束に、ポリオールを主成分とするポリオール成分液
と、イソシアネートを主成分とするイソシアネート成分
液と水及びＣａＳＯ 4 ・２Ｈ2 Ｏ粉末を混合した、発泡
性樹脂液を散布して含浸させ、その発泡性樹脂含浸長繊
維束を成形用通路に導いて該成形用通路内で発泡性樹脂
液の発泡及び硬化を行わしめる。(57) [Summary]
PROBLEM TO BE SOLVED: To provide a long-fiber reinforced material that does not cause deformation and distortion in a product.
Provided is a method for producing a polyurethane foam molded article.
SOLUTION: Many unidirectionally aligned long fiber bundles are provided.
Continuously in the longitudinal direction of the fiber,
Polyol component liquid mainly composed of polyol
And an isocyanate component containing isocyanate as a main component
Liquid and water and CaSO Four・ 2HTwoO powder mixed, foaming
Spraying impregnating resin liquid and impregnating the foamed resin impregnated filament
The wick is guided to a molding passage, and a foamable resin is formed in the molding passage.
The liquid is foamed and cured.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、長繊維補強ポリウ
レタン発泡成形体の製造方法に関する。The present invention relates to a method for producing a long-fiber-reinforced polyurethane foam molded article.
【０００２】[0002]
【従来の技術】木材に代えて建材等の構造材として使用
し得る機械的強度に優れた素材として、長繊維補強ポリ
ウレタン発泡成形体が知られている。従来、長繊維によ
って補強された樹脂発泡体を連続的に製造する方法とし
て、特公昭５２─２４２１号公報に記載されているよう
に、多数のロールと、３個以上のエンドレスベルトから
なる成形用通路の中で発泡硬化させる方法が記載されて
いる。2. Description of the Related Art As a material having excellent mechanical strength which can be used as a structural material such as a building material in place of wood, a long fiber reinforced polyurethane foam is known. Conventionally, as a method for continuously producing a resin foam reinforced by long fibers, a molding method comprising a large number of rolls and three or more endless belts, as described in JP-B-52-2421, has been proposed. A method of foam hardening in a passage is described.
【０００３】長繊維補強ポリウレタン発泡成形体は、ポ
リウレタンの発泡性樹脂液を長繊維束（例えばガラスロ
ービング）等の連続繊維に連続的に含浸させ、これを金
属ベルトの表面で４面が囲まれる成形用通路内に導き、
発泡硬化させて製造される。すなわち長繊維補強ポリウ
レタン発泡成形体は、図１に示す様に長繊維束１０１に
発泡性樹脂液１０２を含浸する工程Ａ、前記の発泡性樹
脂液１０２を発泡させて成形中間構造体１１０を成形す
る工程Ｂ、前記の成形中間構造体１１０を引取機１４０
によって引き取る工程Ｃ、前記の引き取られた成形中間
構造体１１０の表面を仕上げる工程Ｄ、そして最後に、
表面を仕上げられた成形中間構造体１１０を所定の寸法
に切断して成形体１を得る工程Ｅから製造される。[0003] In a long-fiber-reinforced polyurethane foam molded article, continuous fibers such as long-fiber bundles (for example, glass rovings) are continuously impregnated with a foamable resin liquid of polyurethane, and four surfaces are surrounded by the surface of a metal belt. Guided into the molding passage,
It is manufactured by foaming and curing. That is, as shown in FIG. 1, a long fiber reinforced polyurethane foam molded article is formed by impregnating a long fiber bundle 101 with a foamable resin liquid 102, and foaming the foamable resin liquid 102 to form a molded intermediate structure 110. B, the above-mentioned molded intermediate structure 110 is taken off by a take-off machine 140
Step C of finishing, a step D of finishing the surface of the formed molded intermediate structure 110, and finally,
It is manufactured from the step E of obtaining the molded body 1 by cutting the molded intermediate structure 110 whose surface has been finished into predetermined dimensions.
【０００４】長繊維束１０１に発泡性樹脂液１０２を含
浸する工程Ａでは、繊維供給部１２０から供給される繊
維１００を幅方向に配列して一方向に引き揃えられた長
繊維束１０１が形成される。この長繊維束１０１に散布
装置（ミキシング装置）１２１から発泡ウレタン等の発
泡性樹脂液１０２を吐出した後、発泡性樹脂液１０２が
揉み板１２２によって長繊維束１０１に揉み込まれ、均
等に分散される。この発泡性樹脂液１０２を含浸した長
繊維束１０１は後の工程Ｂに送られる。In step A of impregnating the long fiber bundle 101 with the foamable resin liquid 102, the fibers 100 supplied from the fiber supply unit 120 are arranged in the width direction to form the long fiber bundle 101 which is aligned in one direction. Is done. After the foaming resin liquid 102 such as urethane foam is discharged from the spraying device (mixing device) 121 onto the long fiber bundle 101, the foaming resin liquid 102 is rubbed into the long fiber bundle 101 by the rubbing plate 122 and is evenly dispersed. Is done. The long fiber bundle 101 impregnated with the foamable resin liquid 102 is sent to the subsequent step B.
【０００５】この工程Ｂでは、発泡性樹脂液１０２を含
浸した長繊維束１０１を成形用通路１３０内に導入し、
成形用通路１３０内で発泡性樹脂液１０２を発泡させる
と共に該液を硬化し、長繊維補強ポリウレタン発泡成形
体の成形中間構造体１１０が帯状に連続して製造され
る。成形用通路１３０は、上下一対のエンドレスベルト
１３１，１３１と左右一対のエンドレスベルトとによっ
て４面が囲繞される密閉された空間によって形成され
る。In this step B, a long fiber bundle 101 impregnated with a foamable resin liquid 102 is introduced into a molding passage 130,
The foamable resin liquid 102 is foamed in the molding passage 130 and the liquid is cured, and the intermediate structure 110 of the long fiber reinforced polyurethane foam molded article is continuously manufactured in a belt shape. The molding passage 130 is formed by a closed space whose four surfaces are surrounded by a pair of upper and lower endless belts 131 and 131 and a pair of left and right endless belts.
【０００６】このような成形用通路１３０内は、熱風発
生機１３２から送られる熱風によって加熱される。この
熱によって、成形用通路１３０内で長繊維束１０１に含
浸している発泡性樹脂液１０２の反応が進行し、発泡が
促進されると共に樹脂がキュアされ、成形用通路１３０
内に成形中間構造体１１０が充満する。成形用通路１３
０内で、発泡性樹脂液１０２と繊維１００とが均一に充
満して、硬化すると、更に成形体表面の剛性を向上させ
るために冷却が行われて、規定寸法の成形中間構造体１
１０が連続的に製造される。The inside of such a molding passage 130 is heated by hot air sent from a hot air generator 132. Due to this heat, the reaction of the foamable resin liquid 102 impregnating the long fiber bundle 101 in the molding passage 130 progresses, foaming is promoted and the resin is cured, and the molding passage 130
The inside of the molded intermediate structure 110 is filled. Molding passage 13
When the foamable resin liquid 102 and the fiber 100 are uniformly filled and cured within 0, cooling is performed to further improve the rigidity of the surface of the molded body, and the molded intermediate structure 1 having a specified size is cooled.
10 are manufactured continuously.
【０００７】[0007]
【発明が解決しようとする課題】しかし、発泡体は熱伝
導率が低いため外部からの冷却が充分になされても、発
泡体内部までは充分に冷却されないため、発泡体内部の
熱のために表面温度が上昇して充分な表面剛性が確保さ
れず、内部の発泡応力のため、歪みが発生する場合があ
る。一方、内部まで充分冷却させようとすると、冷却工
程が過剰に長くなり生産性の低下が生じてしまう。However, since the foam has a low thermal conductivity, even if it is sufficiently cooled from the outside, the inside of the foam is not sufficiently cooled. In some cases, sufficient surface rigidity cannot be secured due to an increase in surface temperature, and distortion may occur due to internal foaming stress. On the other hand, if an attempt is made to sufficiently cool the inside, the cooling step becomes excessively long, and the productivity is reduced.
【０００８】本発明の目的は、上記の課題を解決し、製
品に変形、歪みが発生しない長繊維補強ポリウレタン発
泡成形体の製造方法を提供することにある。An object of the present invention is to solve the above-mentioned problems and to provide a method for producing a long-fiber-reinforced polyurethane foam molded article in which a product is not deformed or distorted.
【０００９】[0009]
【課題を解決するための手段】本発明の長繊維補強ポリ
ウレタン発泡成形体の製造方法は、多数の一方向に引き
揃えられた長繊維束をその長手方向に連続的に進行さ
せ、進行する上記長繊維束にポリオールを主成分とする
ポリオール成分液と、イソシアネートを主成分とするイ
ソシアネート成分液と水及びＣａＳＯ4 ・２Ｈ2 Ｏを混
合した発泡性樹脂液を散布して含浸させ、その発泡性樹
脂含浸長繊維束を成形用通路に導いて該成形用通路内で
発泡性樹脂液の発泡及び硬化を行わしめるものである。According to the present invention, there is provided a method for producing a long-fiber-reinforced polyurethane foam molded article, wherein a plurality of long-fiber bundles aligned in one direction are continuously advanced in the longitudinal direction thereof. a polyol component solution mainly composed of the polyol to the long fiber bundle was impregnated by spraying the isocyanate component solution and water and CaSO 4 · 2H 2 O-mixture of foamable resin liquid composed primarily of isocyanate, the foaming The resin-impregnated long fiber bundle is guided to a molding passage, and foaming and curing of the foamable resin liquid are performed in the molding passage.
【００１０】本発明に使用される長繊維とは、連続した
長い繊維状物を指し、繊維としてはガラス繊維、炭素繊
維、ポリアミド繊維、ポリエステル繊維、ポリオレフィ
ン繊維、ポリイミド繊維、セルロース繊維などがあげら
れる。なかでも耐熱性、コストの面でガラス繊維が好ま
しい。The long fiber used in the present invention refers to a continuous long fibrous material, and examples of the fiber include glass fiber, carbon fiber, polyamide fiber, polyester fiber, polyolefin fiber, polyimide fiber, and cellulose fiber. . Among them, glass fiber is preferred in terms of heat resistance and cost.
【００１１】上記長繊維の形状も特に限定されないが、
ロービング、ロービングクロス、マット、ストランドマ
ット、不織布などがあげられる。中でも生産性の面で、
ロービングが好ましい。The shape of the long fiber is not particularly limited, either.
Roving, roving cloth, mats, strand mats, nonwoven fabrics and the like can be mentioned. Above all, in terms of productivity,
Roving is preferred.
【００１２】上記長繊維の量はとくに限定されないが、
少なすぎると、得られる発泡成形体に剛性の低下、ばら
つきを生じ、多すぎると長繊維束全体に発泡性樹脂液を
均一に含浸することができないためやはり剛性の分布が
生じるので、発泡性樹脂液１００重量部に対して２０〜
１５０重量部が好ましい。Although the amount of the long fiber is not particularly limited,
If the amount is too small, the resulting foamed molded article has reduced rigidity, and if it is too large, the entire long fiber bundle cannot be uniformly impregnated with the foamable resin liquid, so that the rigidity distribution still occurs. 20 to 100 parts by weight of liquid
150 parts by weight are preferred.
【００１３】上記長繊維の直径も特に限定されないが、
細すぎると含浸の際に繊維が切断されてしまい、太すぎ
ると長繊維の表面積が減少して、発泡性樹脂液との密着
力が減少して得られる発泡成形体の強度が低下するので
２〜１００μｍが好ましい。Although the diameter of the long fiber is not particularly limited,
If it is too thin, the fiber will be cut off during the impregnation, and if it is too thick, the surface area of the long fiber will decrease, and the strength of the obtained foamed product will decrease due to the decrease in the adhesive force with the foamable resin liquid. １００100 μm is preferred.
【００１４】本発明に使用されるポリオールとしては、
エチレングリコール、プロピレングリコール、エリスリ
トール、糖等のポリエーテルポリオール、ポリエステル
ポリオール、ポリエーテルポリオールにビニル化合物を
グラフト重合させたポリマーポリオールなどがあげられ
る。The polyol used in the present invention includes:
Examples include polyether polyols such as ethylene glycol, propylene glycol, erythritol, and sugar, polyester polyols, and polymer polyols obtained by graft-polymerizing a vinyl compound to polyether polyol.
【００１５】上記ポリオールの粘度は特に限定されない
が、低すぎても高すぎても、長繊維束に含浸しにくいの
で３００〜２００００ｃｐｓが望ましい。The viscosity of the polyol is not particularly limited. However, if the viscosity is too low or too high, it is difficult to impregnate the long fiber bundle, so that the viscosity is preferably 300 to 20,000 cps.
【００１６】上記ポリオールの平均官能基数は、小さす
ぎると２成分が３次元的に反応せず、大きすぎると粘度
が上昇して含浸不良の原因となるので２〜８が好まし
い。If the average number of functional groups of the polyol is too small, the two components do not react three-dimensionally. If the average number of functional groups is too large, the viscosity increases and impregnation is poor.
【００１７】本発明に使用されるイソシアネートはウレ
タン発泡用に用いられるイソシアネートであれば特に限
定されないが、たとえば、ジフェニルメタンジイソシア
ネート、トルエンジイソシアネートがあげられる。上記
イソシアネートの量は、特に限定されないが、少なすぎ
ても多すぎても未反応物が残存するのでポリオール１０
０重量部に対して１００〜１８０重量部が好ましい。The isocyanate used in the present invention is not particularly limited as long as it is used for urethane foaming. Examples thereof include diphenylmethane diisocyanate and toluene diisocyanate. The amount of the isocyanate is not particularly limited, but if the amount is too small or too large, unreacted substances remain.
100 to 180 parts by weight per 0 parts by weight is preferred.
【００１８】本発明に使用される水の量は、少なすぎる
と発泡倍率が小さくなり、多すぎると得られる発泡成形
体の強度、剛性が小さくなるので０．２〜１０重量部が
好ましい。If the amount of water used in the present invention is too small, the expansion ratio becomes small, and if it is too large, the strength and rigidity of the obtained foamed molded article become small.
【００１９】本発明に使用されるＣａＳＯ4 ・２Ｈ2 Ｏ
粉末の量は、少なすぎると発泡体内部熱を充分に除去す
ることができず、成形体に歪みが生じ、多すぎると得ら
れる発泡体の機械的物性を低下させるため、ポリオー
ル、イソシアネート、水の合計量１００重量部に対して
０．１〜１０重量部である。The CaSO 4 · 2H 2 O used in the present invention
If the amount of the powder is too small, the internal heat of the foam cannot be sufficiently removed, and the molded article is distorted.If the amount is too large, the mechanical properties of the obtained foam are deteriorated. Is 0.1 to 10 parts by weight with respect to 100 parts by weight in total.
【００２０】ＣａＳＯ4 ・２Ｈ2 Ｏ粉末の平均粒径は小
さすぎると発泡剤である水を吸着するため、発泡が充分
に行われず、大きすぎると分散性が悪いため機械的物性
（特に耐衝撃性）が低下するので０．１〜５００μｍが
好ましい。If the average particle size of the CaSO 4 .2H 2 O powder is too small, water as a foaming agent is adsorbed, so that foaming is not sufficiently performed. If the average particle size is too large, dispersibility is poor and mechanical properties (particularly impact resistance) ) Is preferably 0.1 to 500 μm.
【００２１】なお、上記ＣａＳＯ4 ・２Ｈ2 Ｏ粉末は、
予めポリオール成分液と、イソシアネート成分液、及び
水と同時に混合してもよいし、予めポリオール成分液又
は、イソシアネートと混合されてもよい。さらに、硬化
反応が進行しない範囲でイソシアネート成分液、及び水
の混合液に添加されてもよい。The above CaSO 4 .2H 2 O powder is
The polyol component liquid, the isocyanate component liquid, and the water may be mixed at the same time in advance, or may be previously mixed with the polyol component liquid or the isocyanate. Further, it may be added to a mixture of the isocyanate component liquid and water as long as the curing reaction does not proceed.
【００２２】本発明において使用される発泡性樹脂液に
は必要に応じて、触媒や整泡剤、難燃剤、可塑剤、着色
剤、架橋剤、安定剤、ガラス短繊維、無機系フィラー、
充填材などが含まれても良い。In the foamable resin liquid used in the present invention, a catalyst, a foam stabilizer, a flame retardant, a plasticizer, a colorant, a crosslinking agent, a stabilizer, a short glass fiber, an inorganic filler,
A filler or the like may be included.
【００２３】本発明においては、多数の一方向に引き揃
えられた長繊維束をその長手方向に連続的に進行させ、
進行する上記長繊維束に、直前に混合した発泡性樹脂液
を散布して含浸させ、その発泡性樹脂含浸長繊維束を成
形用通路に導いて該成形用通路内で発泡性樹脂液の発泡
及び硬化を行わしめる。In the present invention, a plurality of long fiber bundles aligned in one direction are continuously advanced in the longitudinal direction,
The foaming resin liquid mixed immediately before is sprayed and impregnated into the progressing long fiber bundle, and the foamable resin-impregnated long fiber bundle is guided to a molding passage to form the foaming resin liquid in the molding passage. And curing.
【００２４】[0024]
【作用】本発明の長繊維補強ポリウレタン発泡成形体の
製造方法は、長繊維束にポリオールを主成分とするポリ
オール成分液と、イソシアネートを主成分とするイソシ
アネート成分液と水及びＣａＳＯ4 ・２Ｈ2 Ｏ粉末とを
混合したものを散布、含浸するものであるから、ＣａＳ
Ｏ4 ・２Ｈ2 Ｏ粉末の吸熱反応により、成形体内部の熱
を蒸発水分と共に、外部へ速やかに排出できる。この場
合の吸熱反応は１モル当り２８．３ＫＣａｌであり、そ
の反応式は化１に示すとおりである。Method for producing a long fiber reinforced polyurethane foam moldings of the effects of the present invention is a polyol component solution mainly composed of the polyol to the long fiber bundle, the isocyanate component solution mainly composed of isocyanate and water, and CaSO 4 · 2H 2 O powder is mixed and sprinkled to impregnate it.
O by 4 · 2H 2 O powder endothermic reaction, the molded body portion of the heat with evaporation water can be discharged quickly to the outside. The endothermic reaction in this case was 28.3 KCa / mol, and the reaction formula is as shown in Chemical formula 1.
【化１】ＣａＳＯ4 ・２Ｈ2 Ｏ＋２８．３ＫＣａｌ／ｍ
ｏｌ＝ＣａＳＯ4 ＋２Ｈ2 ＯEmbedded image CaSO 4 .2H 2 O + 28.3 KCal / m
ol = CaSO 4 + 2H 2 O
【００２５】[0025]
【発明の実施の形態】本発明の実施の形態を、図１を用
いて説明する。図１は本発明の実施の形態を示す説明図
である。本発明の製造方法による長繊維補強ポリウレタ
ン発泡成形体は、図１の様に長繊維束１０１に発泡性樹
脂液１０２を含浸する工程Ａ、前記の発泡性樹脂液１０
２を発泡させて加熱・冷却し成形中間構造体１１０を成
形する工程Ｂ、前記の成形中間構造体１１０を引取機１
４０によって引き取る工程Ｃ、前記の引き取られた成形
中間構造体１１０の表面を仕上げる工程Ｄ、そして最後
に、表面を仕上げられた成形中間構造体１１０を所定の
寸法に切断して成形体１を得る工程Ｅから製造される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. FIG. 1 is an explanatory diagram showing an embodiment of the present invention. The foamed long-fiber reinforced polyurethane foam according to the production method of the present invention comprises a step A of impregnating a long fiber bundle 101 with a foamable resin liquid 102 as shown in FIG.
B, foaming, heating and cooling to form the molded intermediate structure 110, and the above-mentioned molded intermediate structure 110
Step C of taking off by Step 40, Step D of finishing the surface of the molded intermediate structure 110 that has been taken out, and finally, the molded intermediate structure 110 whose surface has been finished is cut into predetermined dimensions to obtain the molded body 1. Manufactured from step E.
【００２６】各々の工程における詳細な説明は従来技術
と同様である。The detailed description of each step is the same as in the prior art.
【００２７】[0027]
【実施例】本発明を実施例をもってさらに詳細に説明す
る。The present invention will be described in more detail with reference to examples.
【００２８】（実施例１）多数の一方向に引き揃えられ
た長繊維束（ロービングガラス繊維、繊維径１２μｍ）
をその長手方向に連続的に進行させながら、２０℃に於
ける粘度５９００ｃｐｓのポリエーテルポリオール（ポ
リプロピレングリコールを主成分とし、残部エリスリト
ール、糖など：平均官能基数３官能）１００重量部、ジ
フェニルメタンジイソシアネート１４０重量部、水１重
量部、ＣａＳＯ4 ・２Ｈ2 Ｏ粉末（平均粒径３０μｍ）
２．４重量部、ジブチル錫ジラウレート０．５重量部、
シリコン系整泡剤（東レダウ社製、商品名「ＳＲＸ−２
９５」）１重量部を混合した、発泡性樹脂液を１：１の
重量比で上記長繊維束に散布した。得られた含浸物（２
５℃）に対し、従来技術で説明した装置を用いて、加熱
（８０℃−１０分間）及び冷却（１０℃−１０分間）を
行って発泡成形体を得た。エンドレスベルトで囲まれた
断面は１００×１００ｍｍであった。(Example 1) Many long fiber bundles aligned in one direction (roving glass fibers, fiber diameter 12 μm)
While continuously proceeding in the longitudinal direction, 100 parts by weight of a polyether polyol having a viscosity of 5900 cps at 20 ° C. (polypropylene glycol as a main component, balance erythritol, sugar, etc .: average number of functional groups: 3), diphenylmethane diisocyanate 140 Parts by weight, 1 part by weight of water, CaSO 4 .2H 2 O powder (average particle size 30 μm)
2.4 parts by weight, 0.5 parts by weight of dibutyltin dilaurate,
Silicone foam stabilizer (manufactured by Toray Dow Company, trade name "SRX-2"
95 ") A foamable resin liquid mixed with 1 part by weight was sprayed on the long fiber bundle at a weight ratio of 1: 1. The resulting impregnated material (2
(5 ° C.), heating (80 ° C. for 10 minutes) and cooling (10 ° C. for 10 minutes) were performed using the apparatus described in the related art to obtain a foam molded article. The cross section surrounded by the endless belt was 100 × 100 mm.
【００２９】（実施例２）ＣａＳＯ4 ・２Ｈ2 Ｏ粉末の
量を７．５重量部としたこと以外は、実施例１と同様に
して発泡成形体を得た。[0029] except that the (Example 2) CaSO 4 · 2H 2 amount of 7.5 parts by weight of O powder to obtain a foamed molded article in the same manner as in Example 1.
【００３０】（実施例３）ＣａＳＯ4 ・２Ｈ2 Ｏ粉末の
量を２６重量部としたこと以外は、実施例１と同様にし
て発泡成形体を得た。[0030] except that the (Example 3) CaSO 4 · 2H 2 amount of 26 parts by weight of O powder to obtain a foamed molded article in the same manner as in Example 1.
【００３１】（比較例１）ＣａＳＯ4 ・２Ｈ2 Ｏ粉末を
使用しなかったこと以外は、実施例１と同様にして発泡
成形体を得た。[0031] Except for not using (Comparative Example 1) CaSO 4 · 2H 2 O powder to obtain a foamed molded article in the same manner as in Example 1.
【００３２】実施例１〜３、比較例１で得られた発泡成
形体を以下の評価に供した。評価 製品高さの変形量 ノギスにより測定した発泡成形体の変形量を表１にまと
めて示した。The foamed molded products obtained in Examples 1 to 3 and Comparative Example 1 were subjected to the following evaluations. Deformation Amount of Evaluation Product Height The deformation amount of the foam molded article measured by a caliper is shown in Table 1.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【発明の効果】本発明の長繊維補強ポリウレタン発泡成
形体の製造方法は上述の如きものであるから、ＣａＳＯ
4 ・２Ｈ2 Ｏ粉末の添加により、成形体内部の熱を吸熱
反応により効率的に除去することができ、表面温度の上
昇を防止して、変形や歪みが生じることのない、長繊維
補強ポリウレタン発泡成形体を得ることができる。The method for producing a long-fiber-reinforced polyurethane foam molded article of the present invention is as described above.
The addition of 4 · 2H 2 O powder, a molded body portion of the heat can be efficiently removed by the endothermic reaction, to prevent the rise of the surface temperature, it is not to occur deformation or distortion, long fiber reinforced polyurethane A foam molded article can be obtained.
【００３５】[0035]
【図１】本発明の長繊維補強ポリウレタン発泡成形体の
製造工程を示す概略図である。FIG. 1 is a schematic view showing a process for producing a long-fiber-reinforced polyurethane foam molded article of the present invention.
１ 成形体 １００ 繊維 １０１ 長繊維束 １０２ 発泡性樹脂液 １１０ 成形中間構造体 １２０ 繊維供給部 １２１ 散布装置（ミキシング装置） １２２ 揉み板 １３０ 成形用通路 １３１ エンドレスベルト １３２ 熱風発生機 １４０ 引取機 Ａ 長繊維束に発泡性樹脂液を含浸する工程 Ｂ 発泡性樹脂液を発泡させて成形中間構造体を成
形する工程 Ｃ 成形中間構造体を引取機によって引き取る工程 Ｄ 成形中間構造体の表面を仕上げる工程 Ｅ 成形体１を得る工程DESCRIPTION OF SYMBOLS 1 Molded object 100 Fiber 101 Long fiber bundle 102 Foamable resin liquid 110 Molding intermediate structure 120 Fiber supply part 121 Spraying device (mixing device) 122 Kneading plate 130 Molding passage 131 Endless belt 132 Hot air generator 140 Puller A Long fiber Step of impregnating the bundle with a foamable resin liquid B Step of foaming the foamable resin liquid to form a molded intermediate structure C Step of taking the molded intermediate structure by a take-off machine D Step of finishing the surface of the molded intermediate structure E Molding Step of obtaining body 1
Claims (1)
をその長手方向に連続的に進行させ、進行する上記長繊
維束に、ポリオールを主成分とするポリオール成分液
と、イソシアネートを主成分とするイソシアネート成分
液と水及びＣａＳＯ4 ・２Ｈ2 Ｏ粉末を混合した、発泡
性樹脂液を散布して含浸させ、その発泡性樹脂含浸長繊
維束を成形用通路に導いて該成形用通路内で発泡性樹脂
液の発泡及び硬化を行わしめることを特徴とする長繊維
補強ポリウレタン発泡成形体の製造方法。1. A plurality of long fiber bundles aligned in one direction are continuously advanced in the longitudinal direction, and the traveling long fiber bundle is mainly mixed with a polyol component liquid containing a polyol as a main component and an isocyanate. were mixed isocyanate component solution and water and CaSO 4 · 2H 2 O powder whose components, the foamable resin liquid sprayed by impregnating, passage molded the expandable resin-impregnated long fiber bundle is guided to the molding passage A method for producing a long-fiber-reinforced polyurethane foam, characterized in that foaming and curing of a foamable resin liquid are performed in the foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18323096A JP3663011B2 (en) | 1996-07-12 | 1996-07-12 | Manufacturing method of long fiber reinforced polyurethane foam molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18323096A JP3663011B2 (en) | 1996-07-12 | 1996-07-12 | Manufacturing method of long fiber reinforced polyurethane foam molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1024430A true JPH1024430A (en) | 1998-01-27 |
| JP3663011B2 JP3663011B2 (en) | 2005-06-22 |
Family
ID=16132066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18323096A Expired - Fee Related JP3663011B2 (en) | 1996-07-12 | 1996-07-12 | Manufacturing method of long fiber reinforced polyurethane foam molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3663011B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423326A (en) * | 2019-07-01 | 2019-11-08 | 陕西科技大学 | A kind of wastewaters with modified calcium sulfate whiskers/polyurethane composite foam material and its preparation process |
-
1996
- 1996-07-12 JP JP18323096A patent/JP3663011B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423326A (en) * | 2019-07-01 | 2019-11-08 | 陕西科技大学 | A kind of wastewaters with modified calcium sulfate whiskers/polyurethane composite foam material and its preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3663011B2 (en) | 2005-06-22 |
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