JPH08207149A - Method of forming frp article with gel coat - Google Patents
Method of forming frp article with gel coatInfo
- Publication number
- JPH08207149A JPH08207149A JP7016769A JP1676995A JPH08207149A JP H08207149 A JPH08207149 A JP H08207149A JP 7016769 A JP7016769 A JP 7016769A JP 1676995 A JP1676995 A JP 1676995A JP H08207149 A JPH08207149 A JP H08207149A
- Authority
- JP
- Japan
- Prior art keywords
- gel coat
- frp
- gel
- resin composition
- resin component
- 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
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000012779 reinforcing material Substances 0.000 claims abstract description 14
- 239000012298 atmosphere Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000011342 resin composition Substances 0.000 claims description 36
- 238000000465 moulding Methods 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 239000011521 glass Substances 0.000 abstract description 15
- 238000009787 hand lay-up Methods 0.000 abstract description 7
- 239000003365 glass fiber Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000004040 coloring Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 19
- 239000010410 layer Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000005266 casting Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229920006305 unsaturated polyester Polymers 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 description 3
- 229920001567 vinyl ester resin Polymers 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002928 artificial marble Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- NOBYOEQUFMGXBP-UHFFFAOYSA-N (4-tert-butylcyclohexyl) (4-tert-butylcyclohexyl)oxycarbonyloxy carbonate Chemical compound C1CC(C(C)(C)C)CCC1OC(=O)OOC(=O)OC1CCC(C(C)(C)C)CC1 NOBYOEQUFMGXBP-UHFFFAOYSA-N 0.000 description 1
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- -1 acrylic compound Chemical class 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ゲルコート付きＦＲ
Ｐ製品の成形方法に関し、より詳細には、ゲルコート用
樹脂組成物の硬化を不活性ガス雰囲気下で行うことによ
り、耐水性、耐熱水性および耐候性が大幅に向上された
ＦＲＰ製品を得る方法に関する。This invention relates to a FR with a gel coat.
More particularly, it relates to a method for molding a P product, and more particularly to a method for obtaining an FRP product having significantly improved water resistance, hot water resistance and weather resistance by curing a resin composition for gel coat in an inert gas atmosphere. .
【０００２】[0002]
【従来の技術】ゲルコートが設けられたＦＲＰ製品は、
大きな設備なしに少量多品種の製品を安価に生産できる
ことから、防水パン、バスタブ、クーリングタワー、水
タンク、ボートやヨット等の広範な分野で大量に使用さ
れている。2. Description of the Related Art FRP products provided with a gel coat are
Since it is possible to produce a wide variety of products in small quantities at low cost without large facilities, it is widely used in a wide range of fields such as waterproof pans, bathtubs, cooling towers, water tanks, boats and yachts.
【０００３】ゲルコートは、ＦＲＰ製品の表面層とな
り、表面の艶付けや着色といった美観付与と共に、水、
熱水および紫外線等に対する保護層として機能する。The gel coat serves as the surface layer of the FRP product, and gives a beautiful appearance such as glossing and coloring of the surface as well as water,
Functions as a protective layer against hot water and ultraviolet rays.
【０００４】従来、ゲルコートを形成するには、離型剤
を塗布した成形用型に、着色剤、硬化剤等を含むゲルコ
ート用樹脂組成物を塗装し、大気中で硬化させている。
その後、ゲルコートの上に、ハンドレイアップ法ではガ
ラス繊維からなる強化材をＦＲＰ用樹脂組成物で積層し
ていき、スプレーアップ法では強化材となるガラス繊維
を切断しながらＦＲＰ用樹脂組成物と一緒に吹き付け、
また注型法ではガラスパウダーからなる強化材を含む注
型用樹脂組成物を成形用型に注入し、ついで樹脂を硬化
させた後、ゲルコート付きのＦＲＰ成形品を脱型する。Conventionally, in order to form a gel coat, a molding die coated with a release agent is coated with a gel coat resin composition containing a colorant, a curing agent and the like and cured in the atmosphere.
Then, on the gel coat, a reinforcing material made of glass fiber is laminated with a resin composition for FRP by the hand layup method, and a resin composition for FRP is cut by cutting the glass fiber as a reinforcing material by the spray up method. Spray together,
Further, in the casting method, a casting resin composition containing a reinforcing material made of glass powder is injected into a molding die, and then the resin is cured, and then the FRP molded article with a gel coat is released from the die.
【０００５】ゲルコート付きのＦＲＰ成形品のうち、バ
スタブ等水環境下で使用される製品にはブリスターが、
また水タンク等太陽光下で使用される製品には黄変色
が、しばしば早期に発生する。その改良策として、ゲル
コート厚が確実に０．３〜０．６ｍｍの範囲に入るよう
に膜厚を管理したり、ゲルコート用樹脂中の硬化剤量を
増やしたり、塗布されたゲルコートを温風炉内で強制加
熱により硬化させることが行われている。また、ゲルコ
ートや強化層の形成材料として、より性能のよいものを
使って対処することも行われている。Among FRP molded products with a gel coat, products used in a water environment such as a bathtub are blisters.
In addition, yellowing often occurs early in products such as water tanks used under sunlight. As the improvement measures, the film thickness is controlled so that the gel coat thickness is surely within the range of 0.3 to 0.6 mm, the amount of the curing agent in the resin for gel coat is increased, and the applied gel coat is heated in the hot air oven. It is being hardened by forced heating. Further, as a material for forming the gel coat or the reinforcing layer, a material having higher performance is used to cope with the problem.
【０００６】[0006]
【発明が解決しようとする課題】しかし、上記のような
対策では、ある程度の改良効果は認められるが、ゲルコ
ートに本来期待されている耐水性、耐熱水性および耐候
性といった性能が十分に発揮されていないという難点が
ある。However, although the above-mentioned countermeasures have some improvement effects, the gel coat is sufficiently expected to exhibit the water resistance, hot water resistance, and weather resistance originally expected. There is a drawback that it does not exist.
【０００７】この発明の目的は、上記の点に鑑み、耐水
性、耐熱水性および耐候性を大巾に向上させたゲルコー
ト付きＦＲＰ製品を得ることができる成形方法を提供す
ることにある。In view of the above points, an object of the present invention is to provide a molding method capable of obtaining a gel-coated FRP product having greatly improved water resistance, hot water resistance and weather resistance.
【０００８】[0008]
【課題を解決するための手段】この発明によるゲルコー
ト付きＦＲＰ製品の成形方法は、離型剤を塗布した成形
用型にゲルコート用樹脂組成物を塗布して硬化させ、つ
いで、得られたゲルコートの上に強化樹脂層を形成する
ゲルコート付きＦＲＰ製品の成形方法において、ゲルコ
ート用樹脂組成物の硬化を不活性ガス雰囲気中で行うこ
とを特徴とするものである。A method for molding an FRP product with a gel coat according to the present invention comprises: applying a gel coat resin composition to a molding die coated with a release agent and curing the resin composition; In a method for forming a gel coat-equipped FRP product on which a reinforced resin layer is formed, the gel coat resin composition is cured in an inert gas atmosphere.
【０００９】ゲルコート用樹脂組成物の例としては不飽
和ポリエステル樹脂、ビニルエステル樹脂、アクリルシ
ラップ（ポリメチルメタクリレートをメチルメタクリレ
ート中に溶解したもの）等をベースとするものが挙げら
れる。該樹脂組成物は、不飽和ポリエステル、ビニルエ
ステルまたはアクリル化合物を、架橋剤例えばスチレン
やメチルメタクリレートで、過酸化物重合開始剤（硬化
剤）の作用で架橋させる。これにより樹脂は硬化され
る。Examples of gel coat resin compositions include those based on unsaturated polyester resins, vinyl ester resins, acrylic syrup (polymethyl methacrylate dissolved in methyl methacrylate) and the like. The resin composition is obtained by crosslinking an unsaturated polyester, a vinyl ester or an acrylic compound with a crosslinking agent such as styrene or methylmethacrylate by the action of a peroxide polymerization initiator (curing agent). This cures the resin.
【００１０】ゲルコート用樹脂組成物は、ＦＲＰ用樹脂
組成物と同じ種類のものを用いるのが好ましい。例え
ば、ＦＲＰ用樹脂組成物として、不飽和ポリエステルを
ベースとするものを用いる場合、ゲルコート用樹脂組成
物としても、不飽和ポリエステルをベースとするものを
用いることが好ましい。ただし、ゲルコート用樹脂組成
物は、ＦＲＰ用樹脂組成物と別の種類のものを用いるこ
ともできる。The gel coat resin composition is preferably the same type as the FRP resin composition. For example, when an unsaturated polyester-based resin composition is used as the FRP resin composition, it is preferable to use an unsaturated polyester-based resin composition as the gel coat resin composition. However, the gel coat resin composition may be of a different type from the FRP resin composition.
【００１１】不活性ガスとしては価格の面から窒素ガス
が有利に使用される。窒素雰囲気は窒素濃度８０％以上
のものが好ましい。濃度が８０％以下であると、得られ
たゲルコートが酸素の影響を受けて、ゲルコートに本来
期待されている耐水性、耐熱水性および耐候性といった
性能が十分に発揮されないことがある。Nitrogen gas is advantageously used as the inert gas in terms of cost. The nitrogen atmosphere preferably has a nitrogen concentration of 80% or more. If the concentration is 80% or less, the resulting gel coat may be affected by oxygen, and the properties originally expected for the gel coat, such as water resistance, hot water resistance and weather resistance, may not be sufficiently exhibited.
【００１２】ゲルコートの硬化反応は、通常は常温で行
われるが、常温より高い温度で行うこともできる。硬化
反応時間は、樹脂の種類、添加剤その他にもよるが、通
常は数時間である。The curing reaction of the gel coat is usually carried out at room temperature, but it may be carried out at a temperature higher than room temperature. The curing reaction time depends on the type of resin, additives, etc., but is usually several hours.
【００１３】強化樹脂層の強化材は、ガラスマットやガ
ラスクロスのような繊維状のものの他、ガラスパウダー
のような粒子状のものであってもよい。ハンドレイアッ
プ法やスプレーアップ法では繊維状の強化材を用い、注
型法では粒子状の強化材を用いるのが好ましい。The reinforcing material of the reinforced resin layer may be a fibrous material such as glass mat or glass cloth, or a particulate material such as glass powder. It is preferable to use a fibrous reinforcing material in the hand lay-up method or the spray-up method and to use a particulate reinforcing material in the casting method.
【００１４】ゲルコートを形成するには、離型剤を塗布
した成形用型に、着色剤、硬化剤等を含むゲルコート用
樹脂組成物を通常０．３〜０．６ｍｍ厚に塗布し、不活
性雰囲気中で硬化させる。その後、ゲルコートの上に、
ハンドレイアップ法ではガラス繊維からなる強化材をＦ
ＲＰ用樹脂組成物で積層していき、スプレーアップ法で
は強化材となるガラス繊維を切断しながらＦＲＰ用樹脂
組成物と一緒に吹き付け、また注型法ではガラスパウダ
ーのような粒子状の強化材を含む注型用樹脂組成物を成
形用型に注入する。その後、樹脂を硬化させ、生成した
硬化物を脱型し、ゲルコート付きのＦＲＰ成形品を得
る。In order to form a gel coat, a resin composition for gel coat containing a colorant, a curing agent and the like is usually applied to a molding die coated with a release agent in a thickness of 0.3 to 0.6 mm to make it inert. Cure in atmosphere. After that, on the gel coat,
In the hand layup method, glass fiber reinforcement is used
The resin composition for RP is laminated, and the glass fiber to be the reinforcing material is cut and sprayed together with the resin composition for FRP in the spray-up method, and the particulate reinforcing material such as glass powder is used in the casting method. The resin composition for casting containing is injected into a molding die. Then, the resin is cured, and the resulting cured product is demolded to obtain a gel-coated FRP molded product.
【００１５】強化樹脂の硬化反応も、通常は常温で行わ
れるが、常温より高い温度で行うこともできる。硬化反
応時間は、樹脂の種類、添加剤その他にもよるが、通常
は数時間から数十時間である。The hardening reaction of the reinforcing resin is usually carried out at room temperature, but it may be carried out at a temperature higher than room temperature. The curing reaction time is usually several hours to several tens hours, though it depends on the type of resin, additives and the like.
【００１６】[0016]
【作用】ゲルコートを形成するには、従来は、離型剤を
塗布した成形用型にゲルコート用樹脂組成物を塗布し、
大気中で硬化させていた。このように大気中での硬化方
法は、ゲルコートの空気接触表面が酸素により硬化阻害
を受け化学的に完全硬化していないことを利用した成形
法である。ついで、ハンドレイアップ法では強化材層と
ＦＲＰ用樹脂組成物層を交互に積層していき、またスプ
レーアップ法では強化材とＦＲＰ用樹脂組成物を一緒に
吹き付ける。その結果、上記の如く化学的に未硬化状態
にあるゲルコートの表面は、その上に配されたＦＲＰ用
樹脂組成物層の溶剤例えばスチレンにより溶かされて、
ＦＲＰ用樹脂組成物層の樹脂と共重合し、ゲルコートは
強化樹脂層と強固な、剥離の心配のないコーティング膜
となると考えられていた（「ＦＲＰ成形の実際」、(
株）高分子刊行会発行、森本尚夫著、７７頁、１９８
４）。In order to form a gel coat, conventionally, a resin composition for gel coat is applied to a molding die coated with a release agent,
It was cured in the atmosphere. As described above, the curing method in the atmosphere is a molding method that utilizes the fact that the air-contact surface of the gel coat is inhibited by oxygen and is not completely cured chemically. Then, in the hand layup method, the reinforcing material layer and the FRP resin composition layer are alternately laminated, and in the spray up method, the reinforcing material and the FRP resin composition are sprayed together. As a result, the surface of the gel coat which is in a chemically uncured state as described above is dissolved by the solvent of the FRP resin composition layer disposed thereon, for example, styrene,
It was thought that the gel coat, which is copolymerized with the resin of the resin composition layer for FRP, becomes a coating film that is strong with the reinforced resin layer and does not worry about peeling ("actual FRP molding", (
Published by Polymer Publishing Co., Ltd., Nao Morimoto, p. 77, 198
4).
【００１７】したがって、ゲルコート用樹脂組成物の硬
化を、大気中でなく不活性雰囲気中で行ったならば、上
記のような酸素による硬化阻止作用は起こらず、そのた
めゲルコートの気体接触表面は化学的に完全に硬化し強
化樹脂層とは強固なコーティング膜を形成できないであ
ろうと推測されていた。Therefore, if the curing of the gel coat resin composition is carried out in an inert atmosphere rather than in the air, the above-mentioned curing inhibition effect by oxygen does not occur, and therefore the gas contact surface of the gel coat is chemically treated. It was presumed that a completely hardened resin film could not be formed with the reinforced resin layer.
【００１８】ところが、驚くべきことに実際には、窒素
雰囲気中で硬化されたゲルコートは、上記のような予測
を覆して強化樹脂層と強固なコーティング膜を形成する
ことが判った。However, surprisingly, it has been found that, in reality, the gel coat cured in a nitrogen atmosphere overturns the above prediction and forms a reinforced resin layer and a strong coating film.
【００１９】しかも、注目すべきことは、こうして得ら
れたゲルコート付きＦＲＰ製品は、大気中で成形された
ものに比べて、耐水性、耐熱水性および耐候性が格段に
優れたものであることが判った。Furthermore, it should be noted that the FRP product with gel coat thus obtained is remarkably excellent in water resistance, hot water resistance and weather resistance as compared with the one molded in the air. understood.
【００２０】従来の方法では、上述の如く硬化の際にゲ
ルコートの空気接触面に酸素による硬化阻止作用が起こ
り、その結果、低分子量の過酸化ラジカルが残存し、こ
れがゲルコートの耐水性、耐熱水性および耐候性等の性
能を悪する原因となっていると考えられる。In the conventional method, the curing-preventing action by oxygen occurs on the air contact surface of the gel coat during curing as described above, and as a result, low-molecular-weight peroxide radicals remain, which are water-resistant and hot-water resistant of the gel coat. It is also considered to be the cause of poor performance such as weather resistance.
【００２１】[0021]
【実施例】以下に、この発明の実施例と、従来法を示す
比較例を挙げる。またこれらの方法で得られた硬化物の
性能を測定し、その結果を示す。EXAMPLES Examples of the present invention and comparative examples showing conventional methods will be described below. In addition, the performance of the cured product obtained by these methods was measured, and the results are shown.
【００２２】実施例１ オルソ系不飽和ポリエステルベースの白色ゲルコート樹
脂ＮＣ−１９０１２Ｐ（日本フエロー社製）に硬化剤パ
ーメックＮ（日本油脂社製）を１重量部混合して、ゲル
コート用樹脂組成物を調製した。ついで、離型剤を予め
塗布した３００×３００ｍｍ角ガラス板にゲルコート用
樹脂組成物を０．３ｍｍ厚にスプレーした。その後、直
ちに窒素を充填した密閉容器にガラス板を入れ、ゲルコ
ートの硬化が終了するまで４時間２５℃で密閉容器に窒
素を吹き込み続けた。この容器の内圧が上昇するのを防
ぐ為、同時に他方より窒素を排出し続けた。その後、ガ
ラス板を容器から出した。こうして窒素雰囲気中で硬化
されたゲルコートの窒素接触面は、アセトンおよびスチ
レンで拭いても、空気中で硬化されたゲルコートのよう
に溶けることはなく、化学的に完全に硬化していた。 Example 1 A white gel coat resin NC-19012P (manufactured by Nippon Ferro Co.) based on an ortho unsaturated polyester was mixed with 1 part by weight of a curing agent Permek N (manufactured by NOF Corporation) to prepare a resin composition for gel coat. Prepared. Then, the resin composition for gel coating was sprayed to a thickness of 0.3 mm on a 300 × 300 mm square glass plate to which a release agent was previously applied. Then, the glass plate was immediately placed in a closed container filled with nitrogen, and nitrogen was continuously blown into the closed container at 25 ° C. for 4 hours until the curing of the gel coat was completed. To prevent the internal pressure of this container from rising, nitrogen was continuously discharged from the other at the same time. Then, the glass plate was taken out from the container. The nitrogen-contacting surface of the gel coat thus cured in a nitrogen atmosphere did not melt like a gel coat cured in air even when wiped with acetone and styrene, and was completely chemically cured.
【００２３】ついで、得られたゲルコートの上へガラス
マット４５０ｇ／ｍ2 ３枚を、硬化剤パーメックＮ（日
本油脂社製）１重量部を含む不飽和ポリエステル樹脂１
５８ＢＱＴＮ（昭和高分子社製）をローラでマット中へ
含浸させながら同樹脂で積層し、得られた積層物をその
後、２５℃大気中で６時間さらに６０℃１時間硬化反応
を行い、生成した硬化物を脱型した。こうしてハンドレ
イアップ法によりゲルコート付きのＦＲＰ成形板を製造
した。An unsaturated polyester resin 1 containing 450 g / m 2 of 3 glass mats and 1 part by weight of Permec N (manufactured by NOF CORPORATION) on the gel coat thus obtained was used.
58BQTN (manufactured by Showa High Polymer Co., Ltd.) was laminated with the same resin while being impregnated in a mat with a roller, and the obtained laminate was then subjected to a curing reaction in the atmosphere at 25 ° C. for 6 hours and further at 60 ° C. for 1 hour. The cured product was demolded. Thus, an FRP molded plate with a gel coat was manufactured by the hand layup method.
【００２４】実施例２ ゲルコート用樹脂として、イソ系不飽和ポリエステルベ
ースのアイボリー色ゲルコート３Ｑ−０２７０Ｐ（日本
フエロー社製）を用い、強化樹脂層用の樹脂としてイソ
系不飽和ポリエステル樹脂１５０ＨＲＢＱＴＮ（昭和高
分子社製）を用い、その他の点は実施例１と同様にし、
ハンドレイアップ法によりゲルコート付きのＦＲＰ成形
板を得た。 Example 2 As a resin for gel coat, ivory color gel coat 3Q-0270P based on iso-unsaturated polyester was used, and as a resin for reinforcing resin layer, iso-unsaturated polyester resin 150HRBQTN (Showa High Manufactured by Molecule Co., Ltd., and otherwise the same as in Example 1,
An FRP molded plate with a gel coat was obtained by the hand layup method.
【００２５】実施例３ ゲルコート用樹脂として、ビスフェノール系ベースのク
リヤーゲルコートＮＣ−５１００４Ｐ（日本フエロー社
製）を用いた点を除いて、実施例１と同様の操作を行
い、離型剤を予め塗布した３００×３００ｍｍ角ガラス
板にゲルコートを形成した。 Example 3 The same procedure as in Example 1 was carried out except that a bisphenol-based clear gel coat NC-51004P (manufactured by Nippon Ferro Corporation) was used as the gel coat resin, and the release agent was applied beforehand. A gel coat was formed on the 300 × 300 mm square glass plate.
【００２６】このゲルコート付きガラス板と、離型剤を
予め塗布した３００×３００ｍｍ角のもう１枚のガラス
板とを、ゲルコートおよび離型剤層がそれぞれ内側に来
るように対向させ、この間にシリコーンゴム製のＵ字状
スペーサーを介在させ、ガラス板の周囲をクランプで挟
み、成形用型を製作した。The glass plate with the gel coat and another glass plate of 300 × 300 mm square on which the release agent was previously applied were opposed to each other so that the gel coat and the release agent layer were on the inside, respectively, and the silicone was interposed therebetween. A U-shaped spacer made of rubber was interposed, and a glass plate was sandwiched by clamps to manufacture a molding die.
【００２７】硬化剤パーカドックス１６（化薬アクゾ社
製）を１重量部含むテレ系注型用樹脂６４２４（日本ユ
ピカ社製）に、ガラスパウダーＭ−２７Ｓ（日本フエロ
ー社製）を２００重量部混入して人造大理石用樹脂組成
物を調製した。200 parts by weight of glass powder M-27S (manufactured by Nippon Fellow) is added to a tele casting resin 6424 (manufactured by Nippon Yupica) containing 1 part by weight of a curing agent Perkadox 16 (manufactured by Kayaku Akzo). A resin composition for artificial marble was prepared by mixing.
【００２８】この樹脂組成物を真空脱泡した後、開口部
を上にして垂直に配置した上記成形用型に注入した。そ
の後、大気中で６０℃２時間硬化反応を行い、生成した
硬化物を脱型した。こうして注型法によりゲルコート付
きの人造大理石成形品を製造した。After vacuum degassing the resin composition, it was poured into the above-mentioned molding die which was vertically arranged with the opening portion facing upward. Then, a curing reaction was performed at 60 ° C. for 2 hours in the atmosphere, and the resulting cured product was demolded. Thus, an artificial marble molded article with a gel coat was manufactured by the casting method.
【００２９】実施例４ ゲルコート用樹脂として、ビニルエステル系ベースのク
リヤーゲルコート７Ｃ−０００１Ｐ（日本フエロー社
製）を用いた点を除いて、実施例３と同様にし、注型法
によりゲルコート付きのＦＲＰ成形品を得た。 Example 4 The same procedure as in Example 3 was repeated except that a vinyl ester-based clear gel coat 7C-0001P (manufactured by Nippon Fellows) was used as the gel coat resin, and the FRP with the gel coat was formed by a casting method. A molded product was obtained.
【００３０】比較例１〜４ ゲルコートの硬化反応を窒素雰囲気中でなく空気中で行
った点を除いて、実施例１〜４とそれぞれ同様にし、ゲ
ルコート付きのＦＲＰ成形板を得た。 Comparative Examples 1 to 4 FRP molded plates with gel coat were obtained in the same manner as in Examples 1 to 4 except that the curing reaction of the gel coat was conducted in air instead of in a nitrogen atmosphere.
【００３１】性能試験 実施例および比較例で得られたゲルコート付きのＦＲＰ
成形板の試験片を、下記の項目について試験し、性能を
評価した。 Performance Test FRP with gel coat obtained in Examples and Comparative Examples
The test pieces of the molded plate were tested for the following items to evaluate the performance.
【００３２】ａ）片面煮沸テスト：試験片を９５℃で連
続煮沸した後のブリスターが発生するまでの時間と、１
００時間煮沸後のΔＥ値（主に黄変色）を調べた。A) Single-sided boiling test: the time until blistering occurs after continuous boiling of the test piece at 95 ° C. and 1
The ΔE value (mainly yellowing) after boiling for 00 hours was examined.
【００３３】ｂ）耐候テスト：サンシャイン促進暴露試
験機（スガ試験機社製）を用いて試験片を２００時間露
光した後、ΔＥ値（主に黄変色）を測定した。B) Weather resistance test: A test piece was exposed for 200 hours using a sunshine accelerated exposure tester (manufactured by Suga Test Instruments Co., Ltd.), and then the ΔE value (mainly yellowing) was measured.
【００３４】ｃ）密着テスト：エルコメータ（電測工業
社製）を使用して試験片のゲルコートをバック層すなわ
ち強化樹脂層から剥離し、剥離面を目視観察した。C) Adhesion test: The gel coat of the test piece was peeled from the back layer, that is, the reinforced resin layer by using an elcometer (manufactured by Densoku Kogyo Co., Ltd.), and the peeled surface was visually observed.
【００３５】各項目の測定結果を表１にまとめて示す。Table 1 shows the measurement results of each item.
【００３６】[0036]
【表１】 [Table 1]
【００３７】[0037]
【発明の効果】この発明によるゲルコート付きＦＲＰ製
品の成形方法では、ゲルコート用樹脂組成物の硬化を不
活性ガス雰囲気中で行うので、耐水性、耐熱水性および
耐候性を大巾に向上させたＦＲＰ製品を得ることができ
る。In the method for molding an FRP product with a gel coat according to the present invention, since the resin composition for gel coat is cured in an inert gas atmosphere, the FRP with greatly improved water resistance, hot water resistance and weather resistance is obtained. You can get the product.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 105:08 309:08 Ｂ２９Ｌ 9:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location // B29K 105: 08 309: 08 B29L 9:00
Claims (2)
用樹脂組成物を塗布して硬化させ、ついで、得られたゲ
ルコートの上に強化樹脂層を形成するゲルコート付きＦ
ＲＰ製品の成形方法において、ゲルコート用樹脂組成物
の硬化を不活性ガス雰囲気中で行うことを特徴とする成
形方法。1. A gel-coated F for forming a reinforced resin layer on the gel coat obtained by coating the resin composition for gel coating on a molding die coated with a release agent and curing the resin composition.
A method for molding an RP product, which comprises curing the resin composition for gel coating in an inert gas atmosphere.
粒子状の強化材をＦＲＰ用樹脂で固め、強化樹脂層を形
成する請求項１記載の方法。2. The method according to claim 1, wherein a fibrous or particulate reinforcing material is solidified with an FRP resin on the obtained gel coat to form a reinforcing resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7016769A JPH08207149A (en) | 1995-02-03 | 1995-02-03 | Method of forming frp article with gel coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7016769A JPH08207149A (en) | 1995-02-03 | 1995-02-03 | Method of forming frp article with gel coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08207149A true JPH08207149A (en) | 1996-08-13 |
Family
ID=11925432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7016769A Pending JPH08207149A (en) | 1995-02-03 | 1995-02-03 | Method of forming frp article with gel coat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08207149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583389A (en) * | 2021-08-10 | 2021-11-02 | 贵州航天乌江机电设备有限责任公司 | Preparation method of SiO2 aerogel supporting structure with ultrahigh strength and low heat conductivity coefficient |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596226A (en) * | 1982-07-05 | 1984-01-13 | Sumitomo Bakelite Co Ltd | Production of phenol frp |
| JPS6078666A (en) * | 1983-10-07 | 1985-05-04 | Toppan Printing Co Ltd | Method for adjusting surface of film by inert gas |
| JPS60149417A (en) * | 1984-01-13 | 1985-08-06 | Matsushita Electric Works Ltd | Manufacture of formed part with highly hard surface |
| JPH0512714A (en) * | 1991-07-08 | 1993-01-22 | Hitachi Maxell Ltd | Optical information recording medium and production thereof |
-
1995
- 1995-02-03 JP JP7016769A patent/JPH08207149A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596226A (en) * | 1982-07-05 | 1984-01-13 | Sumitomo Bakelite Co Ltd | Production of phenol frp |
| JPS6078666A (en) * | 1983-10-07 | 1985-05-04 | Toppan Printing Co Ltd | Method for adjusting surface of film by inert gas |
| JPS60149417A (en) * | 1984-01-13 | 1985-08-06 | Matsushita Electric Works Ltd | Manufacture of formed part with highly hard surface |
| JPH0512714A (en) * | 1991-07-08 | 1993-01-22 | Hitachi Maxell Ltd | Optical information recording medium and production thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583389A (en) * | 2021-08-10 | 2021-11-02 | 贵州航天乌江机电设备有限责任公司 | Preparation method of SiO2 aerogel supporting structure with ultrahigh strength and low heat conductivity coefficient |
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