JPS624408B2 - - Google Patents
Info
- Publication number
- JPS624408B2 JPS624408B2 JP56112947A JP11294781A JPS624408B2 JP S624408 B2 JPS624408 B2 JP S624408B2 JP 56112947 A JP56112947 A JP 56112947A JP 11294781 A JP11294781 A JP 11294781A JP S624408 B2 JPS624408 B2 JP S624408B2
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- resin
- woven fabric
- chemical fiber
- cured film
- 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.)
- Expired
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は化学繊維製織布又は不織布を補強材と
する熱硬化性樹脂含浸プリプレグと、それを用い
た積層材に関し、特に熱圧成形によつて高透明度
硬化膜を形成し得るプリプレグと、それを用いた
オーバーレイ化粧材に関する。Detailed Description of the Invention The present invention relates to a prepreg impregnated with a thermosetting resin using chemical fiber woven fabric or non-woven fabric as a reinforcing material, and a laminate using the prepreg. The present invention relates to a prepreg that can be formed and an overlay decorative material using the prepreg.
化学繊維製織布又は不織布を補強材とする熱硬
化性樹脂含浸プリプレグは、電気絶縁基板、耐食
性積層金属板、音響材器ケースボード、自動車内
装材等各種積層材に利用されているが、この種プ
リプレグは熱圧成形後の硬化膜に濁りが生ずるた
め、化粧面を有する基材のオーバーレイシートと
しては不適当である。 Thermosetting resin-impregnated prepregs with chemical fiber woven fabrics or non-woven fabrics as reinforcement materials are used for various laminate materials such as electrical insulating substrates, corrosion-resistant laminated metal plates, acoustic material case boards, and automobile interior materials. The seed prepreg is not suitable as an overlay sheet for a base material having a decorative surface because the cured film becomes cloudy after hot-press molding.
従つて、本発明は、熱圧成形によつて完全透明
硬化膜を形成する化学繊維製織布又は不織布のプ
リプレグと、これを用いたオーバーレイ化粧材を
提供することを目的とする。 Therefore, an object of the present invention is to provide a chemical fiber woven fabric or nonwoven fabric prepreg that forms a completely transparent cured film by hot-press molding, and an overlay decorative material using the prepreg.
本発明者等は、この目的達成のため鋭意研究し
た結果、熱圧成形後の硬化膜に濁りの生ずる原因
は、合成繊維中にツヤ消し剤として混入される微
量のチタン白にあるとの知見を得、これに基いて
本発明に到達した。 As a result of intensive research to achieve this objective, the present inventors discovered that the cause of cloudiness in the cured film after thermoforming is the trace amount of titanium white mixed into the synthetic fiber as a matting agent. Based on this, we have arrived at the present invention.
即ち、本発明は、化学繊維製織布又は不織布に
熱硬化性樹脂を含浸、乾燥させて成るプリプレグ
において、前記化学繊維としてチタン白を含まな
い化学繊維を使用することを特徴とするプリプレ
グに関し、更に、これを用いたオーバーレイ化粧
材に関する。 That is, the present invention relates to a prepreg formed by impregnating a chemical fiber woven fabric or a nonwoven fabric with a thermosetting resin and drying it, characterized in that a chemical fiber that does not contain titanium white is used as the chemical fiber, Furthermore, the present invention relates to an overlay decorative material using the same.
市販の化学繊維製織布又は不織布を用いたプリ
プレグの熱圧成形硬化膜に濁りの生ずる原因とし
て、当初、繊維と含浸樹脂との熱圧状態での相溶
性、繊維と含浸樹脂との屈折率の差、繊維中の各
種添加剤等幾つかの要因が考えられたが、検討の
結果、原因はチタン白の混入にあるものと判明し
た。 The causes of turbidity in the heat-press molded cured film of prepreg using commercially available chemical fiber woven fabrics or non-woven fabrics are initially due to the compatibility between the fibers and the impregnated resin in the hot-press state, and the refractive index of the fibers and the impregnated resin. Several factors were thought to be involved, such as the difference in color and various additives in the fibers, but as a result of investigation, it was determined that the cause was the contamination of titanium white.
従つて、本発明では化学繊維としてチタン白を
含まないものを使用するが、繊維高分子としては
各種のものが使用でき、例えばポリエステル、ナ
イロン、アクリル、レーヨン、アセテート等が挙
げられる。 Therefore, in the present invention, chemical fibers that do not contain titanium white are used, but various types of fiber polymers can be used, such as polyester, nylon, acrylic, rayon, acetate, etc.
これら化学繊維製織布又は不織布に熱硬化性樹
脂を含浸、乾燥させてプリプレグとする。 These chemical fiber woven fabrics or non-woven fabrics are impregnated with a thermosetting resin and dried to produce a prepreg.
熱硬化性樹脂としては、各種のものが使用でき
るが、例えば不飽和ポリエステル樹脂、ジアリル
フタレート樹脂、エポキシ、アクリレート樹脂、
不飽和ウレタン樹脂等の熱重合性不飽和樹脂を、
スチレン、ジアリルフタレート、ネオペンチルグ
リコールジ（メタ）アクリレート、１，６−ヘキ
サンジオールジ（メタ）アクリレート、トリメチ
ロールプロパントリ（メタ）アクリレート等の熱
重合性不飽和モノマーとの混合物が好適である。
これら熱硬化性樹脂を含浸、乾燥させたプリプレ
グは、通常は常温で粘着性が認められるが、この
ような場合、粘着性の除去を目的として、熱硬化
性樹脂にニトロセルロース、エチルセルロース、
アセチルセルロース、セルロースアセテートブチ
レート、ブチルセルロース、塩化ビニル−酢酸ビ
ニル共重合体等の常温固相の熱可塑性樹脂を混合
することができる。熱重合性不飽和樹脂、熱重合
性不飽和モノマー及び熱可塑性樹脂の混合割合
は、夫々、30〜65部、５〜20部及び５〜20部とす
ることが好ましく、これら混合物は、更に必要に
応じて可塑剤が添加され、メチルエチルケトン、
酢酸エチル、トルエン等の溶剤又はそれらの混合
溶剤で稀釈され、適当な粘度に調整された溶液と
して使用される。 Various thermosetting resins can be used, such as unsaturated polyester resin, diallyl phthalate resin, epoxy, acrylate resin,
Thermopolymerizable unsaturated resins such as unsaturated urethane resins,
Mixtures with thermally polymerizable unsaturated monomers such as styrene, diallyl phthalate, neopentyl glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, and trimethylolpropane tri(meth)acrylate are suitable.
Prepregs impregnated with these thermosetting resins and dried are usually sticky at room temperature, but in such cases, nitrocellulose, ethylcellulose,
Thermoplastic resins that are solid at room temperature, such as acetyl cellulose, cellulose acetate butyrate, butyl cellulose, and vinyl chloride-vinyl acetate copolymer, can be mixed. The mixing proportions of the thermopolymerizable unsaturated resin, the thermopolymerizable unsaturated monomer, and the thermoplastic resin are preferably 30 to 65 parts, 5 to 20 parts, and 5 to 20 parts, respectively. Plasticizer is added according to methyl ethyl ketone,
It is used as a solution which is diluted with a solvent such as ethyl acetate or toluene or a mixed solvent thereof and adjusted to an appropriate viscosity.
化学繊維製織布又は不織布にこれら溶液を含
浸、乾燥させてプリプレグを作製する際、織布又
は不織布は15〜30ｇ／m2程度のものを使用すれば
よく、樹脂含浸率（樹脂不揮発分×100／織布又
は不織布１ｇ）は300〜500％でよい。織布又は不
織布に含浸後余剰の樹脂溶液をニツプロールで絞
り取つた後60〜70℃の熱風乾燥炉内で乾燥する。 When producing prepreg by impregnating chemical fiber woven fabric or non-woven fabric with these solutions and drying them, the woven fabric or non-woven fabric should be about 15 to 30 g/ m2 , and the resin impregnation rate (resin non-volatile content × 100/1g of woven or non-woven fabric) may be 300-500%. After impregnating the woven fabric or non-woven fabric, the excess resin solution is squeezed out using a Nipro roll and then dried in a hot air drying oven at 60 to 70°C.
斯くして作製された本発明のプリプレグはプラ
スチツク、金属、木材、紙等の各種基材に熱圧着
可能であり、これら基材のオーバーレイシートと
して利用し得る。熱圧条件は温度110〜150℃、圧
力７〜15Kg／cm2、時間30秒〜10分の範囲で適宜設
定すればよい。特に、このプリプレグは熱圧成形
によつて完全透明硬化膜を形成し得るものである
から、基材表面に化粧が施されている場合には、
硬化膜を透してこの化粧面を鮮明に見ることがで
きる。従つて、本発明のプリプレグは化粧材のオ
ーバーレイシートとして特に好適に使用し得る。 The thus produced prepreg of the present invention can be thermocompression bonded to various base materials such as plastic, metal, wood, and paper, and can be used as an overlay sheet for these base materials. The heat and pressure conditions may be appropriately set within the range of temperature 110 to 150°C, pressure 7 to 15 kg/cm 2 , and time 30 seconds to 10 minutes. In particular, since this prepreg can form a completely transparent cured film by hot-press molding, if the surface of the base material is decorated,
This decorative surface can be clearly seen through the cured film. Therefore, the prepreg of the present invention can be particularly suitably used as an overlay sheet for decorative materials.
以下、実施例により本発明を具体的に説明す
る。 Hereinafter, the present invention will be specifically explained with reference to Examples.
実施例
チタン白を含まない25ｇ／m2のアクリル繊維製
不織布（日本バイリーン社特製）を下記樹脂溶液
に浸漬する。Example A 25 g/m 2 acrylic fiber nonwoven fabric (specially manufactured by Nihon Vilene Co., Ltd.) containing no titanium white was immersed in the following resin solution.
〔不飽和ポリエステル樹脂 50部
（大日本インキ化学工業社製、
ポリライトCS−810）
塩酢ビ共重合体 ８
（UCC社製、ビニライトVAGH）
エポキシ樹脂 ２
（シエル化学社製、エピコート828）
混合溶剤 42
（メチルエチルケトン／酢酸エチル／
トルエン＝13／７／22）
ベンゾイルパーオキサイド １〕
浸漬後、余剰の溶液をニツプロールで絞り取
り、65℃の熱風乾燥炉に入れて３分間乾燥させ、
樹脂含浸率350％のプリプレグを得た。[Unsaturated polyester resin 50 parts (Dainippon Ink & Chemicals Co., Ltd., Polylite CS-810) Salt vinyl acetate copolymer 8 (UCC Co., Ltd., Vinyrite VAGH) Epoxy resin 2 (Ciel Chemical Co., Ltd., Epicoat 828) Mixed solvent 42 (Methyl ethyl ketone/ethyl acetate/toluene = 13/7/22) Benzoyl peroxide 1] After soaking, squeeze out the excess solution with Nipprol and dry in a hot air drying oven at 65℃ for 3 minutes.
A prepreg with a resin impregnation rate of 350% was obtained.
別に、合板に目止め処理、下地塗装、木目印刷
を施した化粧合板を用意し、この上に前記プリプ
レグを重ね合せ、熱圧条件を温度130℃、圧力10
Kg／cm2、時間５分として、熱圧成形したところ、
上層の硬化膜に全く濁りがなく、木目模様を完全
透視し得るオーバーレイ化粧合板が得られた。 Separately, a decorative plywood with sealing treatment, base coating, and wood grain printing is prepared, and the prepreg is layered on top of this, and the heat-pressing conditions are set to 130°C and 10% pressure.
Kg/cm 2 , time was 5 minutes, and hot pressure molding was performed.
An overlay decorative plywood was obtained in which the upper cured film had no turbidity at all and the wood grain pattern was completely transparent.
Claims (1)
含浸、乾燥させてなるプリプレグにおいて、前記
化学繊維としてチタン白を含まない化学繊維を使
用したことを特徴とする熱圧成形で完全透明硬化
膜形成可能なプリプレグ。1. A prepreg made by impregnating a chemical fiber woven fabric or a non-woven fabric with a thermosetting resin and drying the same, in which a completely transparent cured film formed by heat pressure molding is characterized in that a chemical fiber that does not contain titanium white is used as the chemical fiber. Formable prepreg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294781A JPS5815533A (en) | 1981-07-21 | 1981-07-21 | Prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294781A JPS5815533A (en) | 1981-07-21 | 1981-07-21 | Prepreg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5815533A JPS5815533A (en) | 1983-01-28 |
| JPS624408B2 true JPS624408B2 (en) | 1987-01-30 |
Family
ID=14599495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11294781A Granted JPS5815533A (en) | 1981-07-21 | 1981-07-21 | Prepreg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7018533B2 (en) | 2001-09-18 | 2006-03-28 | U.S. Filter Wastewater Group, Inc. | High solids module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024049605A (en) * | 2022-09-29 | 2024-04-10 | 株式会社大阪ソーダ | Decorative sheet, decorative board, and method for manufacturing decorative board |
-
1981
- 1981-07-21 JP JP11294781A patent/JPS5815533A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7018533B2 (en) | 2001-09-18 | 2006-03-28 | U.S. Filter Wastewater Group, Inc. | High solids module |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5815533A (en) | 1983-01-28 |
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