JPH04329123A - Continuous pultrusion method of phenolic resin impregnated fiber - Google Patents
Continuous pultrusion method of phenolic resin impregnated fiberInfo
- Publication number
- JPH04329123A JPH04329123A JP3128642A JP12864291A JPH04329123A JP H04329123 A JPH04329123 A JP H04329123A JP 3128642 A JP3128642 A JP 3128642A JP 12864291 A JP12864291 A JP 12864291A JP H04329123 A JPH04329123 A JP H04329123A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- mold
- impregnated
- phenolic resin
- curing agent
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000005011 phenolic resin Substances 0.000 title abstract description 16
- 229920001568 phenolic resin Polymers 0.000 title abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 title abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 2
- 239000010680 novolac-type phenolic resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 17
- 239000011347 resin Substances 0.000 abstract description 17
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005470 impregnation Methods 0.000 abstract description 8
- 239000011521 glass Substances 0.000 abstract description 7
- 229920003986 novolac Polymers 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007865 diluting Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 6
- 239000004312 hexamethylene tetramine Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明はフェノール樹脂含浸繊
維連続引抜成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method for continuous pultrusion of phenolic resin-impregnated fibers.
【０００２】0002
【従来の技術】従来、フェノール樹脂は難燃性で硬くて
脆い、即ち、引張強さは大きいが、衝撃に弱い性質を有
する。従って、フェノール樹脂製品は補強繊維で補強す
る必要がある。この成形手段として図２に示すようにロ
ービング状のガラス繊維等の補強繊維１’をレゾール型
フェノール樹脂を満たした槽２’に引き通し前記樹脂を
含浸させ、これを束ねて絞りロール９’、１０’で含浸
付着量を調整し、引抜き金型へ搬送し、連続引抜成形に
より硬化成形する製造方法が一般に採用されている（例
えば特開平２−１８２４３７号）。BACKGROUND OF THE INVENTION Conventionally, phenolic resins are flame retardant, hard and brittle, that is, they have high tensile strength but are weak against impact. Therefore, phenolic resin products need to be reinforced with reinforcing fibers. As shown in FIG. 2, as a forming means for this, reinforcing fibers 1' such as roving-shaped glass fibers are passed through a tank 2' filled with a resol-type phenolic resin to be impregnated with the resin, and the fibers are bundled and squeezed into rolls 9', Generally, a manufacturing method is employed in which the amount of impregnated film is adjusted in step 10', the film is transported to a pultrusion mold, and then hardened and molded by continuous pultrusion molding (for example, JP-A-2-182437).
【０００３】0003
【従来技術の問題点】しかし、ガラスロービング補強繊
維に含浸させるフェノール樹脂としてノボラック型フェ
ノール樹脂を使用した場合、該樹脂の硬化剤であるヘキ
サメチレンテトラミン（ＨＭＴＡ）を添加すると粘度増
加が著しく樹脂浴による含浸は殆ど不可能となり、引抜
成形は実施不能となる問題があり、また仮に樹脂浴が可
能であるとしても含浸の段階より硬化が開始するので、
引抜き金型での成形が充分に行えなくなる問題があった
。[Problems with the prior art] However, when a novolak type phenol resin is used as a phenol resin to be impregnated into glass roving reinforcing fibers, when hexamethylenetetramine (HMTA), which is a curing agent for the resin, is added, the viscosity of the resin bath increases significantly. There is a problem that impregnation with resin is almost impossible and pultrusion is impossible, and even if a resin bath is possible, curing will start from the impregnation stage.
There was a problem that forming with a drawing die could not be performed sufficiently.
【０００４】0004
【発明が解決しようとする課題】この発明は上記問題点
に鑑み、ストランド，ロービング等の補強繊維にノボラ
ック型フェノール樹脂を含浸したものの引抜成形時にお
ける樹脂の硬化時間を調節し、生産速度、設備の簡単な
フェノール樹脂含浸繊維連続引抜成形方法を提供するこ
とを目的としてなされたものである。[Problems to be Solved by the Invention] In view of the above problems, the present invention aims to improve production speed and equipment by adjusting the hardening time of the resin during pultrusion molding of reinforcing fibers such as strands and rovings impregnated with novolak type phenolic resin. The purpose of this invention is to provide a simple continuous pultrusion method for phenolic resin-impregnated fibers.
【０００５】[0005]
【課題を解決するための手段】即ち、この発明のフェノ
ール樹脂含浸繊維連続引抜成形方法は、無溶剤ノボラッ
ク型フェノール樹脂を加熱溶融し、該溶融液にストラン
ド化された補強繊維を浸漬し、該樹脂含浸繊維を金型へ
搬送し、該金型内に設けたノズルより速効性硬化剤を注
入して前記樹脂含浸補強繊維に添加し、硬化させる事を
特徴とするものである。[Means for Solving the Problems] That is, the method of continuous pultrusion molding of phenolic resin-impregnated fibers of the present invention involves heating and melting a solvent-free novolak type phenol resin, immersing reinforcing fibers in the form of strands in the melt, and The resin-impregnated reinforcing fibers are transported to a mold, and a fast-acting curing agent is injected through a nozzle provided in the mold, added to the resin-impregnated reinforcing fibers, and cured.
【０００６】[0006]
【作用】ノボラック型のフェノール樹脂は一般には８０
〜１００℃のものが良く使用され、用途的には７０〜７
５℃のものもあるが、この発明では粉体で無溶剤でＭｐ
９０〜１００℃のものを使用する。加熱すれば溶解し、
温度を上げれば粘度が低下し水溶液状になり、速効性硬
化剤を添加すれば瞬時にしてゲル化し硬化する事を利用
する。従って、このノボラック型のフェノール樹脂のみ
を加熱して溶液状とし、これに繊維を浸漬すれば樹脂が
容易に含浸でき、このような繊維を束ねて引抜き金型へ
供給し、この金型内で速効性硬化剤を添加すればこの時
点から硬化が開始するので容易に引抜き成形が可能とな
る。上記速効性硬化剤としてＨＭＴＡ（ヘキサメチレン
テトラミン）を使用する。 この速効性硬化剤は樹脂
含浸後、金型内で溶剤に希釈した状態で塗布する事に依
り比較的簡単な設備で硬化する事が出来る。[Action] Novolac type phenolic resin is generally 80%
Temperatures of ~100°C are often used, and 70~7
There are also products at 5°C, but in this invention, Mp can be achieved in powder form without solvent.
Use one with a temperature of 90 to 100°C. It dissolves when heated,
When the temperature is raised, the viscosity decreases and it becomes an aqueous solution, and when a fast-acting curing agent is added, it instantly gels and hardens. Therefore, by heating only this novolak-type phenolic resin to form a solution, and dipping the fibers into the solution, the resin can be easily impregnated.The fibers are bundled and supplied to a drawing mold, and inside this mold, the resin is easily impregnated. If a fast-acting curing agent is added, curing will start from this point, making pultrusion easy. HMTA (hexamethylenetetramine) is used as the fast-acting curing agent. This fast-acting curing agent can be cured with relatively simple equipment by applying it in a diluted state with a solvent in a mold after impregnating it with a resin.
【０００７】[0007]
【実施例】次に、この発明の実施例を説明する。図１は
この発明の方法を実施する装置の側面図を示す。ガラス
フィラメント２００ 本を束ねたガラスロービング１を
ノボラック型フェノール樹脂２を満たした含浸槽２Ａに
引き通し樹脂を含浸させた。この時の含浸槽２Ａ中の樹
脂の温度は１１０℃で粘度は２５００センチポイズであ
った。フェノール樹脂含浸量は絞りロール９，９’によ
り含浸量を調節し、所定の断面形状の製品を成形出来る
大きさとされた引抜金型３へ搬送した。金型３内では、
ＨＭＴＡを水に希釈した速効性硬化剤を押出ポンプ５を
通してノズル６，６’より噴出させ、フェノール樹脂含
浸ガラスロービング繊維上に含浸樹脂量の５重量％にな
るよう供給した。金型３は温度１１０℃に調節されてい
るからＨＭＴＡの散布と同時に硬化が開始され、金型３
から引抜かれた成形体８はフェノール樹脂の効果に依り
型崩れ、あばた状の凹部、クラックのないしっかりした
ものが成形できた。なおこの時の金型炉の長さは１．５
ｍ、生産速度は０．４ｍ／ｍｉｎ であった。[Example] Next, an example of the present invention will be described. FIG. 1 shows a side view of an apparatus for carrying out the method of the invention. A glass roving 1 in which 200 glass filaments were bundled was passed through an impregnation tank 2A filled with a novolak type phenolic resin 2 to be impregnated with the resin. At this time, the temperature of the resin in the impregnation tank 2A was 110° C. and the viscosity was 2500 centipoise. The amount of phenol resin impregnated was adjusted by squeeze rolls 9 and 9', and the product was conveyed to a drawing die 3 having a size capable of molding a product with a predetermined cross-sectional shape. Inside mold 3,
A fast-acting curing agent prepared by diluting HMTA in water was ejected from nozzles 6 and 6' through an extrusion pump 5, and was supplied onto the phenolic resin-impregnated glass roving fibers in an amount of 5% by weight of the amount of impregnated resin. Since the temperature of the mold 3 is adjusted to 110°C, curing starts at the same time as the HMTA is sprayed, and the mold 3
Due to the effect of the phenol resin, the molded body 8 pulled out from the molded body was able to be molded into a solid one without deformation, pock-like recesses, or cracks. The length of the mold furnace at this time is 1.5
m, and the production speed was 0.4 m/min.
【０００８】[0008]
【発明の効果】この発明は以上説明したように、ノボラ
ック型フェノール樹脂及び速効性硬化剤を使用しても引
抜き金型での製造が可能となり、この種樹脂を使用した
成形速度の増大が可能となり、大量生産が容易にできる
効果を有する。[Effects of the Invention] As explained above, this invention makes it possible to manufacture with a pultrusion mold even when using a novolak type phenolic resin and a fast-acting curing agent, and it is possible to increase the molding speed using this type of resin. This has the effect of facilitating mass production.
【図１】この発明の方法を実施する装置の要部側面図で
ある。FIG. 1 is a side view of essential parts of an apparatus for carrying out the method of the present invention.
【図２】従来例の装置の側面図である。FIG. 2 is a side view of a conventional device.
１ ガラスロービング ２Ａ 含浸槽 ２ 含浸液 ３ 金型 ４ 希釈硬化剤 ５ 搬送ポンプ ６，７ 散布ノズル ８ 成形品 1 Glass roving 2A Impregnation tank 2 Impregnation liquid 3 Mold 4 Dilute hardening agent 5 Conveyance pump 6,7 Spraying nozzle 8 Molded products
Claims (1)
加熱溶融し、該溶融液にストランド化された補強繊維を
浸漬し、該樹脂含浸繊維を金型へ搬送し、該金型内に設
けたノズルより速効性硬化剤を注入して前記樹脂含浸補
強繊維に添加し、硬化させる事を特徴とするフェノール
樹脂含浸繊維連続引抜成形方法。Claim 1: A solvent-free novolac type phenolic resin is heated and melted, stranded reinforcing fibers are immersed in the melt, the resin-impregnated fiber is conveyed to a mold, and the resin-impregnated fiber is conveyed to a mold through a nozzle provided in the mold. A method for continuous pultrusion molding of phenolic resin-impregnated fibers, characterized in that a fast-acting curing agent is injected, added to the resin-impregnated reinforcing fibers, and cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3128642A JPH04329123A (en) | 1991-04-30 | 1991-04-30 | Continuous pultrusion method of phenolic resin impregnated fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3128642A JPH04329123A (en) | 1991-04-30 | 1991-04-30 | Continuous pultrusion method of phenolic resin impregnated fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04329123A true JPH04329123A (en) | 1992-11-17 |
Family
ID=14989872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3128642A Pending JPH04329123A (en) | 1991-04-30 | 1991-04-30 | Continuous pultrusion method of phenolic resin impregnated fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04329123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441701A (en) * | 2014-10-16 | 2015-03-25 | 宿迁市天彩玻璃纤维有限公司 | Resin coating and curing device for production of glass fiber board |
-
1991
- 1991-04-30 JP JP3128642A patent/JPH04329123A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441701A (en) * | 2014-10-16 | 2015-03-25 | 宿迁市天彩玻璃纤维有限公司 | Resin coating and curing device for production of glass fiber board |
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