JPS6364453B2 - - Google Patents
Info
- Publication number
- JPS6364453B2 JPS6364453B2 JP1015581A JP1015581A JPS6364453B2 JP S6364453 B2 JPS6364453 B2 JP S6364453B2 JP 1015581 A JP1015581 A JP 1015581A JP 1015581 A JP1015581 A JP 1015581A JP S6364453 B2 JPS6364453 B2 JP S6364453B2
- Authority
- JP
- Japan
- Prior art keywords
- glass fiber
- smc
- layer
- resin composition
- molded product
- 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
- 239000003677 Sheet moulding compound Substances 0.000 claims description 35
- 239000003365 glass fiber Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000011342 resin composition Substances 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
硝子繊維補強体に増粘剤を含む液状の不飽和ポ
リエステル樹脂組成物を含浸させ、該樹脂組成物
を増粘せしめてなるシートモールデイングコンパ
ウンド（SMCと略称）は、FRP成型品の製造材
料として広く用いられている。DETAILED DESCRIPTION OF THE INVENTION A sheet molding compound (abbreviated as SMC) is obtained by impregnating a glass fiber reinforced body with a liquid unsaturated polyester resin composition containing a thickener and thickening the resin composition. Widely used as a manufacturing material for FRP molded products.
SMCを用いてFRP成型品を製造する場合、雌
雄一対の型間でSMCを挾圧しつつ加熱する。
SMCは所定厚みの板状の形状を有しており、こ
のSMCを適宜の大きさに切断したものを使用す
る。工業的にFRP成型品を製造する場合、所定
厚みの矩形状のSMCを用い、このSMCを一対の
型で押圧加熱することにより、SMCを流動変形
せしめることが行われている。 When manufacturing FRP molded products using SMC, the SMC is heated while being sandwiched between a pair of male and female molds.
SMC has a plate-like shape with a predetermined thickness, and this SMC is used by cutting it into an appropriate size. When manufacturing FRP molded products industrially, a rectangular SMC with a predetermined thickness is used and the SMC is pressed and heated with a pair of molds to cause the SMC to flow and deform.
上述のような成型方法を採用するため、SMC
は次のような性質を有することが強く要望される
が、このような性質を有するSMCは従来知られ
ていなかつた。 In order to adopt the above-mentioned molding method, SMC
It is strongly desired that SMC have the following properties, but no SMC having such properties has been known so far.
(1) 型内流動性、型馴染みが良好であり、而も均
質なFRP成型品が得られること。(1) FRP molded products with good in-mold fluidity and mold compatibility and homogeneity can be obtained.
(2) 得られたFRP成型品の強度が大きいこと。(2) The strength of the obtained FRP molded product is high.
例えば、硝子繊維補強体としてCM（チヨツプ
ドストランドマツト）を使用したSMCの場合、
SMCの流動性、型馴染みは良好であるが、FRP
成型品の強度の大きいものが得られない難点があ
る。 For example, in the case of SMC using CM (chopped strand pine) as the glass fiber reinforcement,
SMC has good fluidity and mold compatibility, but FRP
There is a drawback that a molded product with high strength cannot be obtained.
硝子繊維補強体としてCSM（コンテイニユアス
ストランドマツト）を使用したSMCの場合、強
度の大きいFRP成型品を得ることができるが、
SMCの型内流動性は極めて乏しい。このため
SMCが型内に均一に拡がり難く、成型品に欠肉
部分が生じ易い。 In the case of SMC using CSM (contained strand mat) as the glass fiber reinforcement, it is possible to obtain a strong FRP molded product, but
The in-mold fluidity of SMC is extremely poor. For this reason
It is difficult for SMC to spread uniformly within the mold, and the molded product tends to have missing parts.
本発明者は、かかる難点を解決するため、種々
検討を重ねた結果、硝子繊維補強体として0.6〜
３ｍの長さに切断した硝子繊維束を彎曲堆積せし
めてなるマツト状物を使用することにより、以下
述べるように驚く程良好な結果の得られることを
見出し、特願昭56―10156号として特許出願を行
なつた。 In order to solve this difficulty, the present inventor has conducted various studies and found that glass fiber reinforcement with a thickness of 0.6 to 0.
By using a pine-like material made by stacking glass fiber bundles cut to a length of 3 m in a curved manner, it was discovered that surprisingly good results could be obtained as described below, and the patent was granted in Japanese Patent Application No. 10156-1983. I filed an application.
CSMを使用したSMCは型内流動性に乏しい
が、この発明のSMC（以下先発明SMCという）
は型内流動性が極めて大きく、例えば、SMCを
型間で流動させ、SMCの２倍以上の表面積を有
する成型品をうることができる。これに対し、
CSMを用いたSMCの場合、成型品の表面積と殆
んど同一の面積を有するSMCを使用する必要が
ある。 SMC using CSM has poor in-mold fluidity, but the SMC of this invention (hereinafter referred to as "prior invention SMC")
has extremely high in-mold fluidity; for example, by allowing SMC to flow between molds, it is possible to obtain a molded product with a surface area more than twice that of SMC. In contrast,
In the case of SMC using CSM, it is necessary to use an SMC that has almost the same surface area as the molded product.
先発明SMCを使用して得られたFRP成型品は
CMを使用したSMCの場合に比し遥かに大きい強
度を有し、CSMを使用した場合とほぼ比肩する
強度を有することが判明した。 The FRP molded product obtained using the previously invented SMC is
It was found that the strength was much greater than that of SMC using CM, and the strength was almost comparable to that of using CSM.
このように先発明SMCは極めて優れた成型性
を有するが、FRP成型品にリブを設けた場合、
リブ部の形状によつては、リブ部に硝子繊維が不
足する場合が生ずることが判明した。 In this way, the previously invented SMC has extremely excellent moldability, but when ribs are provided on an FRP molded product,
It has been found that depending on the shape of the rib portion, there may be a shortage of glass fibers in the rib portion.
本発明者は、かかる点について、先発明SMC
を改善すべく更に検討を重ねた結果、先発明にお
いて使用するマツト状物を第１層とし、この上に
10〜100mmに切断した硝子繊維束を無方向に堆積
せしめてなる第２層を重ねてなるマツト状物を硝
子繊維補強体として使用することにより好適な結
果の得られることを見出し、本発明として提案し
たものである。 With regard to this point, the inventors of the present invention
As a result of further studies in order to improve the
It has been discovered that suitable results can be obtained by using as a glass fiber reinforcement a pine-like material formed by laminating a second layer of glass fiber bundles cut into 10 to 100 mm pieces in a non-directional manner, and as the present invention. This is what I proposed.
本発明においては、短かく切断された硝子繊維
束よりなる第２層が第１層に重ねられているの
で、この短い硝子繊維束は流動性が良好であり、
リブ部に流入し、補強する効果を有する。 In the present invention, the second layer made of short cut glass fiber bundles is superimposed on the first layer, so the short glass fiber bundles have good fluidity.
It flows into the rib portion and has a reinforcing effect.
次に本発明を更に具体的に説明する。 Next, the present invention will be explained in more detail.
本発明においては、ブツシングから引出した多
数の硝子繊維に集束剤を附与して集束してなる硝
子繊維束を0.6〜３ｍの長さに切断したものを使
用して第１層を形成せしめる。切断長さがあまり
短いと得られたFRPの強度が低下し易い。切断
長さがあまり大きいと型内流動性が不充分となり
易い。 In the present invention, the first layer is formed by using a glass fiber bundle obtained by adding a sizing agent to a large number of glass fibers pulled out from a bushing and cutting them into lengths of 0.6 to 3 m. If the cutting length is too short, the strength of the obtained FRP tends to decrease. If the cutting length is too large, fluidity within the mold tends to be insufficient.
集束剤としては、酢ビ、ポリエステル、エポキ
シ等の汎用樹脂を含むものが好適に使用できる。
又、その附与量は固型分として硝子繊維に対し
0.3〜2wt％程度とするのが適当である。 As the sizing agent, those containing general-purpose resins such as vinyl acetate, polyester, and epoxy can be suitably used.
In addition, the amount added is based on the solid content of glass fiber.
It is appropriate to set it at about 0.3 to 2 wt%.
硝子繊維としては、太さ９〜20μ、好ましくは
10〜17μのものを用い、300〜4000本、好ましく
は500〜2000本集束したものを用いるのが適当で
あり、又、その1000ｍ当りの重量は90〜1100grの
範囲とするのが適当である。 The glass fiber has a thickness of 9 to 20μ, preferably
It is appropriate to use a material of 10 to 17μ, with 300 to 4000, preferably 500 to 2000, focused, and the weight per 1000m is in the range of 90 to 1100gr. .
このような硝子繊維束を0.6〜３ｍの長さに切
断し、例えば移動するコンベア上に落下堆積せし
める。硝子繊維束はランダムに彎曲してコンベア
上に堆積し、マツト状となる。硝子繊維束の堆積
量は300〜4000gr／m2、望ましくは400〜3600gr／
m2とするのが適当である。なお、硝子繊維束はブ
ツシングから引出し集束された硝子繊維束を直接
切断してもよく、或は一旦巻取つたものを巻戻し
て切断してもよい。 Such glass fiber bundles are cut into lengths of 0.6 to 3 m, and are deposited, for example, on a moving conveyor. The glass fiber bundles are randomly curved and deposited on the conveyor, forming a pine-like shape. The amount of deposited glass fiber bundle is 300 to 4000gr/ m2 , preferably 400 to 3600gr/m2.
It is appropriate to set it to m2 . Incidentally, the glass fiber bundle may be drawn out from the bushing and collected and then cut directly, or the glass fiber bundle may be wound once and then rewound and cut.
第１層上に10〜100mmに切断した硝子繊維束を
無方向に堆積せしめて第２層を形成する。 A second layer is formed by depositing glass fiber bundles cut into 10 to 100 mm pieces in a non-directional manner on the first layer.
第２層を形成せしむべき硝子繊維束は、第１層
を形成せしむべき硝子繊維束と同様にして製造で
きる。なお、この際使用すべき集束剤としては、
酢ビ、ポリエステル、エポキシ等の汎用樹脂を含
むものが好適に使用でき、又、その附与量は固型
分として硝子繊維に対し0.3〜２％適度とするの
が適当である。 The glass fiber bundle on which the second layer is to be formed can be produced in the same manner as the glass fiber bundle on which the first layer is to be formed. In addition, the sizing agent that should be used at this time is:
Those containing general-purpose resins such as vinyl acetate, polyester, and epoxy can be suitably used, and the appropriate amount of the added solids is 0.3 to 2% based on the glass fiber.
又、硝子繊維としては太さ９〜15μ、好ましく
は10〜13μのものを用い、50〜200本、好ましく
は80〜120本集束したものを用いるのが適当であ
り、又、その1000ｍ当りの重量は10〜50grの範囲
とするのが適当である。 In addition, it is appropriate to use glass fibers with a thickness of 9 to 15 μm, preferably 10 to 13 μm, and a bundle of 50 to 200 fibers, preferably 80 to 120 fibers. Suitably, the weight is in the range of 10 to 50 gr.
なお又、第２層の堆積量は250〜4000gr／m2、
望ましくは300〜3500gr／m2とするのが適当であ
る。 Furthermore, the amount of deposition of the second layer is 250 to 4000gr/ m2 ,
A suitable range is desirably 300 to 3500 gr/m 2 .
上述の第１層、第２層よりなるマツト状物に増
粘剤を含む液状の不飽和ポリエステル樹脂組成物
を含浸させ、熱成して該樹脂組成物を増粘せしめ
て常法に従つてSMCとする。 A mat-like material consisting of the first and second layers described above is impregnated with a liquid unsaturated polyester resin composition containing a thickener, heated to thicken the resin composition, and then processed according to a conventional method. SMC.
増粘剤としては酸化マグネシユーム、水酸化マ
グネシユーム等が好適に使用できる。増粘剤の添
加量は樹脂に対し0.3〜5wt％程度とするのが適当
である。又、本発明マツトに対する樹脂組成物の
附与量はマツト100重量部に対し40〜570重量部と
するのが適当である。なお、樹脂中に必要に応じ
フイラー、着色剤、離型材等を加えたものを使用
することもできる。 Magnesium oxide, magnesium hydroxide, etc. can be suitably used as the thickener. It is appropriate that the amount of the thickener added is about 0.3 to 5 wt% based on the resin. Further, it is appropriate that the amount of the resin composition added to the mat of the present invention is 40 to 570 parts by weight per 100 parts by weight of the mat. Note that it is also possible to use a resin in which a filler, a coloring agent, a mold release agent, etc. are added as necessary.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
実施例
太さ13μの硝子繊維500本に酢ビエマルジヨン、
シランカツプリング剤を主成分として含有する集
束剤を固型分として0.4％附与、集束してなる硝
子繊維束を一旦巻取りケーキとなし、このケーキ
から硝子繊維束を引出し１ｍの長さに切断したも
のを600gr／m2の割合で移動するコンベア上に落
下堆積せしめて第１層を形成せしめた。Example: Vinegar emulsion on 500 glass fibers with a thickness of 13μ,
A sizing agent containing a silane coupling agent as a main component is added as a solid content of 0.4%, and the resulting glass fiber bundle is wound up to form a cake, and the glass fiber bundle is pulled out from this cake to a length of 1 m. The cut pieces were allowed to fall onto a conveyor moving at a rate of 600 gr/m 2 to form a first layer.
この第１層上に太さ10μの硝子繊維80本に酢ビ
エマルジヨン、シランカツプリング剤を主成分と
して含有する集束剤を、固型分として0.4％附与
してなる硝子繊維束を一旦巻取りケーキとなし、
このケーキから硝子繊維束を引出し50mmの長さに
切断したものを450gr／m2の割合で、第１層上に
落下堆積せしめ、第２層を形成せしめた。 On this first layer, a glass fiber bundle made of 80 glass fibers with a thickness of 10μ and a sizing agent containing acetic acid vinyl emulsion and a silane coupling agent as main components added at a solid content of 0.4% is once wound up. cake and pear,
A glass fiber bundle was pulled out from this cake and cut into a length of 50 mm, which was dropped and deposited on the first layer at a rate of 450 gr/m 2 to form a second layer.
このようにして得られた第１層、第２層よりな
るマツト状物60重量部に、不飽和ポリエステル樹
脂96.5部、ステアリン酸亜鉛2.7部、過酸化物0.6
部、酸化マグネシユーム0.6部よりなる樹脂組成
物を40重量部の割合で附与、含浸させ35℃で３日
間熟成してSMCとした。 To 60 parts by weight of the mat-like material consisting of the first and second layers thus obtained, 96.5 parts of unsaturated polyester resin, 2.7 parts of zinc stearate, and 0.6 parts of peroxide.
40 parts by weight of a resin composition consisting of 0.6 parts of magnesium oxide and 0.6 parts of magnesium oxide were added and impregnated, and the mixture was aged at 35° C. for 3 days to obtain SMC.
このSMCを三次元曲面を有する一対の型間で
挾圧し、140℃で３分間加熱し、リブを有する
FRP成型品を得た。 This SMC was sandwiched between a pair of molds with three-dimensional curved surfaces, heated at 140℃ for 3 minutes, and formed into ribbed molds.
An FRP molded product was obtained.
このFRP成型品の平均引張り強度は23.5Kg／mm2
であり、又、SMCの面積に比し３倍の表面積を
有し、又、リブ部も充分な強度を有するFRP成
型品を得ることができた。 The average tensile strength of this FRP molded product is 23.5Kg/mm 2
In addition, we were able to obtain an FRP molded product that had a surface area three times that of SMC and also had sufficient strength in the rib portion.
これに対し、同量のCMを用いたSMCの場合、
平均引張り強度は20.0Kg／mm2であつた。 On the other hand, in the case of SMC using the same amount of CM,
The average tensile strength was 20.0Kg/ mm2 .
硝子繊維補強体としてCSMを用いた場合、平
均引張り強度は24.0Kg／mm2であり、SMCの表面
積の1.2倍の表面積を有するFRPが得られるに過
ぎず、又、リブ部の強度が低下した。 When CSM was used as the glass fiber reinforcement, the average tensile strength was 24.0 Kg/ mm2 , and an FRP with a surface area only 1.2 times that of SMC was obtained, and the strength of the rib portion was reduced. .
Claims (1)
ポリエステル樹脂組成物を含浸せしめ、該樹脂組
成物を増粘せしめてなるシートモールデイングコ
ンパウンドにおいて、硝子繊維補強体として0.6
ｍ〜３ｍの長さに切断した硝子繊維束を弯曲堆積
せしめてなる第１層と、10〜100mmに切断した硝
子繊維束を無方向に堆積せしめてなる第２層とよ
りなるマツト状物を使用したことを特徴とするシ
ートモールデイングコンパウンド。1. In a sheet molding compound made by impregnating a glass fiber reinforcement with a liquid unsaturated polyester resin composition containing a thickener and thickening the resin composition, the glass fiber reinforcement has a thickness of 0.6
A pine-like material consisting of a first layer formed by stacking glass fiber bundles cut into lengths of 10 to 100 mm in a curved manner, and a second layer formed by stacking glass fiber bundles cut into lengths of 10 to 100 mm in a non-directional manner. A sheet molding compound characterized by its use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015581A JPS57125037A (en) | 1981-01-28 | 1981-01-28 | Sheet molding compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1015581A JPS57125037A (en) | 1981-01-28 | 1981-01-28 | Sheet molding compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57125037A JPS57125037A (en) | 1982-08-04 |
| JPS6364453B2 true JPS6364453B2 (en) | 1988-12-12 |
Family
ID=11742379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1015581A Granted JPS57125037A (en) | 1981-01-28 | 1981-01-28 | Sheet molding compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57125037A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8729951D0 (en) * | 1987-12-23 | 1988-02-03 | British Telecomm | Endface assessment |
-
1981
- 1981-01-28 JP JP1015581A patent/JPS57125037A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57125037A (en) | 1982-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5665470A (en) | Glass fibers and fiber-reinforced plastics | |
| US3616181A (en) | Moldable article of glass fibers and a modified phenolic binder | |
| KR100460823B1 (en) | Protected Glass Fiber for Polymer Reinforcement | |
| DE2310991A1 (en) | METHOD FOR MANUFACTURING A POROUS, THERMOPLASTIC RESIN ARTICLE REINFORCED WITH GLASS MATS | |
| US3022210A (en) | Method of making molding compounds of glass fiber reinforced plastics | |
| JPH0767694B2 (en) | Method for producing fiber-reinforced thermoplastic resin molding material | |
| EP0390193B1 (en) | Nonwoven fabric for reinforcing resin and moldable sheet utilizing the same | |
| DE69111423T2 (en) | POLYMERS COMPOSITION. | |
| JPH07258441A (en) | Fibrous preform containing cyclic polyester oligomer and its production | |
| US2703762A (en) | Reinforced inorganic molded products | |
| DE3885972T2 (en) | Chemically treated fibers and processes for making and reinforcing polymers. | |
| JPS6364453B2 (en) | ||
| JPH07121990B2 (en) | Method of forming thick ballistic resistant material | |
| DE1520393A1 (en) | Reinforced polymeric compounds and processes for their preparation | |
| JPS6364454B2 (en) | ||
| AU612496B2 (en) | Preformable mat | |
| US4087401A (en) | Silica flour containing reinforced resin compositions and articles formed thereof | |
| DE3420048C2 (en) | ||
| KR20140104003A (en) | Fiber reinforced resin molding compound and manufacturing method for fiber reinforced resin molded article therefrom | |
| JPH07242755A (en) | Glass fiber bundle for reinforcing resin and production of molding material | |
| JPS6142614B2 (en) | ||
| JPS5924726A (en) | Sheet molding compound | |
| JPH0771805B2 (en) | Sheet molding compound and method of manufacturing the same | |
| JPS636331B2 (en) | ||
| JP2002178331A (en) | Sheet molding compound |