JP3024667B2 - Synthetic resin molded product and method for producing the same - Google Patents
Synthetic resin molded product and method for producing the sameInfo
- Publication number
- JP3024667B2 JP3024667B2 JP21046793A JP21046793A JP3024667B2 JP 3024667 B2 JP3024667 B2 JP 3024667B2 JP 21046793 A JP21046793 A JP 21046793A JP 21046793 A JP21046793 A JP 21046793A JP 3024667 B2 JP3024667 B2 JP 3024667B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- synthetic resin
- molding material
- resin molded
- molding
- 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 - Lifetime
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、表面鮮映性を要求され
る自動車外装材等の合成樹脂成形品、及びその製造法に
関する。表面鮮映性とは自動車外装材等の表面に物体を
写したとき、その像がどの程度鮮明に、また歪みなく映
し出されるかの尺度であり、塗装仕上げの良しあしを示
す指標として、特に自動車外装材では重要な特性であ
る。従来の自動車用の金属性外装材は、重量が重くデザ
インの自由度に欠けていたため、合成樹脂製外装材によ
る実用化が待たれている。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded article of a synthetic resin such as an exterior material for an automobile, which requires a high surface clarity, and a method for producing the same. Surface clarity is a measure of how sharp and undistorted the image is when projected onto the surface of automobile exterior materials, etc. This is an important property for exterior materials. Conventional metallic exterior materials for automobiles are heavy and lack the degree of freedom of design, and therefore, practical use of synthetic resin exterior materials is expected.
【0002】[0002]
【従来の技術】合成樹脂を使用して射出成形により自動
車外装材が成形できれば、軽量化やデザインの自由度を
広げうる可能性がある。一方、自動車外装材としては通
常、線膨張係数が5×10-5/℃以下であることが要求
される。従って上記目的に合成樹脂を使用する場合、通
常はガラス繊維を配合して線膨張を下げる工夫が行われ
る。しかしながらガラス繊維を配合した材料は射出成形
された際に、表面にガラス繊維が浮いてくるために表面
外観が悪く、塗装処理しても鮮映性が良くないため実用
に供せないという問題がある。また、ABS樹脂は、ガ
ラス繊維を添加させることによって衝撃強さの減少と破
壊時に樹脂が飛散するという問題があった。2. Description of the Related Art If an automotive exterior material can be molded by injection molding using a synthetic resin, there is a possibility that the weight can be reduced and the degree of freedom in design can be increased. On the other hand, automotive exterior materials are generally required to have a coefficient of linear expansion of 5 × 10 −5 / ° C. or less. Therefore, when a synthetic resin is used for the above purpose, a measure is usually taken to reduce the linear expansion by blending glass fibers. However, when a material containing glass fiber is injection-molded, the surface appearance is poor because the glass fiber floats on the surface. is there. Further, the ABS resin has a problem that the impact strength is reduced by adding glass fiber and the resin is scattered at the time of breaking.
【0003】[0003]
【発明が解決しようとする課題】本発明の目的は、上記
課題を解決し、表面鮮映性に優れ、且つ反りの少ない自
動車外装材等の合成樹脂成形品及びその製造法を提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a synthetic resin molded article such as an automobile exterior material having excellent surface clarity and less warpage, and a method for producing the same. is there.
【0004】[0004]
【課題を解決するための手段】本発明者らはシートを金
型キャビティに装着して更に他の熱可塑性樹脂を射出注
入して一体成形する方法(以下、CFI技術ということ
がある)において、成形材料に複合強化スチレン系樹脂
を使用することにより、上記課題を解決できることを見
いだし、本発明に至った。すなわち本発明は、射出成形
法により得られる合成樹脂成形品であって、荷重撓み温
度〔ASTM D648(荷重18.5kgf/c
m 2 )〕110℃以下の複合強化スチレン系成形材料
(B)と接着性を有する接着層を設けてなる芳香族ポリ
カーボネートシート(A)を所定形状に切断して、金型
キャビティーの片面に該接着層が射出される成形材料
(B)側となるように装着後、該複合強化スチレン系成
形材料(B)を該シート(A)上に射出注入し、該シー
ト(A)と成形材料(B)を積層一体化して得られる合
成樹脂成形品(C)に関する発明である。Means for Solving the Problems The inventors of the present invention have proposed a method of mounting a sheet in a mold cavity, injecting and injecting another thermoplastic resin, and integrally molding the sheet (hereinafter, may be referred to as CFI technique). The present inventors have found that the above problems can be solved by using a composite reinforced styrenic resin as a molding material, and have reached the present invention. That is, the present invention is a synthetic resin molded article obtained by injection molding, load deflection temperature
Degree [ASTM D648 (load 18.5kgf / c
m 2 )] An aromatic polycarbonate sheet (A) provided with a composite reinforced styrenic molding material (B) having a temperature of 110 ° C. or lower and an adhesive layer having adhesiveness is cut into a predetermined shape, and is cut into one side of a mold cavity. after mounting as adhesive layer becomes molding material (B) side to be emitted, the composite reinforced styrene molding material (B) was injected injected onto the sheet (a), the sheet (a) and the molding material The present invention relates to a synthetic resin molded product (C) obtained by laminating and integrating (B).
【0005】本発明で使用する芳香族ポリカーボネート
シート(A)は、2,2−ビス(4−ヒドロキシフェニ
ル)−プロパンや2,2−ビス(3,5−ジブロモ−4
−ヒドロキシフェニル)−プロパンで例示される二価の
フェノール系化合物の一種以上とホスゲンで例示される
カーボネート前駆体とから公知の方法によって得られる
重合体であり、またポリエチレンテレフタレート(PE
T)、ポリブチレンテレフタレート(PBT)、等のポ
リエステル類、スチレン系樹脂、もしくはポリアミド等
とのポリマーアロイを使用することもできる。The aromatic polycarbonate sheet (A) used in the present invention includes 2,2-bis (4-hydroxyphenyl) -propane and 2,2-bis (3,5-dibromo-4).
-Hydroxyphenyl) -propane is a polymer obtained by a known method from one or more divalent phenolic compounds exemplified by propane and a carbonate precursor exemplified by phosgene, and polyethylene terephthalate (PE
Polyesters such as T) and polybutylene terephthalate (PBT), styrene resins, and polymer alloys with polyamides and the like can also be used.
【0006】上記芳香族ポリカーボネートシートの片面
に、複合強化スチレン系成形材料(B)と接着性を有す
る接着層として、アクリル系樹脂、ポリエステル系樹
脂、スチレン系樹脂、ナイロン系樹脂を厚みが10〜1
00μm程度としたフィルムをラミネート法により積層
するかまたは、上記組成の塗料を塗布するして接着層を
設けてなるポリカーボネートシートとする。接着層は、
成形材料(B)と溶着性を有すものが好ましく、上記樹
脂群から選ばれた接着強度の高い組成の接着層とするの
が望ましい。An acrylic resin, a polyester resin, a styrene resin, and a nylon resin having a thickness of 10 to 10 are formed on one surface of the aromatic polycarbonate sheet as an adhesive layer having an adhesive property with the composite reinforced styrenic molding material (B). 1
A film having a thickness of about 00 μm is laminated by a lamination method, or a coating having the above composition is applied to form a polycarbonate sheet provided with an adhesive layer. The adhesive layer
It is preferable that the adhesive layer has a welding property with the molding material (B).
【0007】芳香族ポリカーボネートシート(A)を用
いて成形材料で積層一体成形する場合、製品の曲率(H
/D)が0.1を超える場合、シート上を流れる樹脂で
製品形状に賦形されるシートの端部に樹脂で絞りきれな
いために皺が発生する問題がある。この様な場合、真空
成形等により予備成形を行う事が好ましく、例えばスト
レート、ドレープ、プラグアシスト、エアーブロー成形
法が適用できる。シート(A)の厚みは、好ましくは
0.3mm以上、特に好ましくは0.3〜3mmのもの
を使用すると積層成形時の製品外観はガラス繊維等の転
写が無いために向上する。また上記真空成形等により形
状を付与する場合、賦形性に優れる。上記のシートは必
要に応じて、接着層のない面に予め印刷、塗装などで文
字マークを施したもの、熱成形可能なハードコート等の
表面処理をしたものも使用することができる。In the case of integrally forming a laminate with a molding material using the aromatic polycarbonate sheet (A), the curvature (H
If the ratio (/ D) exceeds 0.1, there is a problem that wrinkles occur because the resin cannot be squeezed at the end of the sheet formed into a product shape by the resin flowing on the sheet. In such a case, preforming is preferably performed by vacuum forming or the like. For example, straight, drape, plug assist, and air blow molding methods can be applied. When the thickness of the sheet (A) is preferably 0.3 mm or more, particularly preferably 0.3 to 3 mm, the appearance of the product at the time of lamination molding is improved because there is no transfer of glass fiber or the like. In addition, when the shape is given by the vacuum forming or the like, the shapeability is excellent. If necessary, the above-mentioned sheet may be a sheet having no adhesive layer on which a letter mark has been formed by printing, painting, or the like, or a sheet having been subjected to a surface treatment such as a thermoformable hard coat.
【0008】本発明で使用する複合強化スチレン系成形
材料(B)に使用する熱可塑性樹脂は、上記芳香族ポリ
カーボネートシート(A)の接着層と溶着性を有するス
チレン系樹脂が使用でき、具体的にはポリスチレン(P
S)、耐衝撃性ポリスチレン(HIPS)、アクリルニ
トリル・スチレン(AS)、ABS、AES、AAS、
ACS、MMA−スチレン共重合体樹脂組成物等が例示
できる。As the thermoplastic resin used in the composite reinforced styrenic molding material (B) used in the present invention, a styrenic resin capable of welding to the adhesive layer of the aromatic polycarbonate sheet (A) can be used. Is polystyrene (P
S), high impact polystyrene (HIPS), acrylonitrile / styrene (AS), ABS, AES, AAS,
Examples thereof include ACS and MMA-styrene copolymer resin compositions.
【0009】上記複合強化スチレン系成形材料(B)に
使用可能な強化用充填剤は、機械的強度、耐熱性、成形
収縮率もしくは線膨張係数の減少を目的に樹脂中に配合
されるものであり、具体的にはガラス、カーボン、金
属、ウィスカ、炭化珪素、ボロン等の有機・無機物の繊
維状またはフレーク状等の上記性能を有するものが適宜
使用される。 上記充填材の中でもガラス繊維が特に望ま
しい。上記充填材の選択及び配合割合は、機械的強度、
下記の成形収縮率もしくは線膨張係数の減少を考慮して
決定される。The reinforcing filler which can be used in the composite reinforced styrenic molding material (B) is a compound which is blended in a resin for the purpose of reducing mechanical strength, heat resistance, molding shrinkage or linear expansion coefficient. There, in particular glass, carbon, metal, whiskers, silicon carbide, which has the above performance of fibrous or flaky like organic or inorganic substances such as boron Ru are used as appropriate. Glass fiber among the top Symbol filler is particularly desirable. Selection and blending ratio of the filler, mechanical strength,
It is determined in consideration of the following reduction in molding shrinkage or coefficient of linear expansion.
【0010】スチレン系樹脂組成物は、一般に耐衝撃性
が悪いためにABS樹脂に代表されるように衝撃緩衝物
としてブタジエンゴム等を添加して衝撃性を改善してい
る。一方、本発明ではガラス繊維を添加して剛性を高め
ている一方、衝撃強さは減少してしまう。また破壊した
場合の破壊形態は脆性破壊となるために樹脂の破片が飛
散してしまう。しかし本発明ではシートと成形材料が強
固に接着しており、且つポリカーボネートシートが延性
材料であるために、樹脂が脆性破壊を起こした場合で
も、シートがその飛散を防止させる効果がある。Since the styrene resin composition generally has poor impact resistance, butadiene rubber or the like is added as an impact buffer as represented by an ABS resin to improve the impact resistance. On the other hand, in the present invention, the glass fiber is added to increase the rigidity, but the impact strength decreases. In addition, when broken, the fracture mode is brittle, so that resin fragments are scattered. However, in the present invention, since the sheet and the molding material are firmly adhered to each other and the polycarbonate sheet is a ductile material, even if the resin undergoes brittle fracture, the sheet has an effect of preventing its scattering.
【0011】成形収縮率により充填剤の選択及び配合割
合を選択する場合、成形収縮率は厚み3.2mm、外径
101.6mm円板金型を利用して式100×(金型寸
法−成形品の寸法)/(金型寸法)より求められる値
が、樹脂ゲートに平行方向で0.3%以下、垂直方向で
0.5%以下のものであることが望ましい。上記成形収
縮率は、例えば複合強化ポリカーボネート成形材料とし
てビスフェノールAを主原料としたポリカーボネートを
使用する場合、溶融樹脂の温度280℃、金型温度80
℃の測定条件下に測定される。上記成形収縮率が上記の
値を超えると積層された成形品の各面(シート面と材料
面)における成形収縮差が大きいために、成形品全面に
わたりソリが発生する可能性がある。又、線膨張係数に
より充填材の選択及び配合割合を選択する場合、線膨張
係数は5×10-5/℃以下であることが望ましい。ここ
に於て線膨張係数はASTMD696に準じて測定され
た値である。線膨張係数が上記の値以上では、上記と同
様に成形品全面にわたり、ソリが発生する可能性があ
る。When selecting the filler and the compounding ratio based on the molding shrinkage, the molding shrinkage can be calculated by using a disk mold having a thickness of 3.2 mm and an outer diameter of 101.6 mm using the formula 100 × (mold size−molded product). It is desirable that the value obtained from (dimension of) / (mold size) be 0.3% or less in the direction parallel to the resin gate and 0.5% or less in the vertical direction. For example, when a polycarbonate containing bisphenol A as a main raw material is used as the composite reinforced polycarbonate molding material, the molding shrinkage is 280 ° C. for the molten resin and 80 ° C. for the mold.
It is measured under measurement conditions of ° C. If the above-mentioned molding shrinkage exceeds the above-mentioned value, the difference in molding shrinkage on each surface (sheet surface and material side) of the laminated molded product is large, so that warpage may occur over the entire surface of the molded product. When selecting the filler and selecting the compounding ratio based on the coefficient of linear expansion, the coefficient of linear expansion is desirably 5 × 10 −5 / ° C. or less. Here, the coefficient of linear expansion is a value measured according to ASTM D696. If the coefficient of linear expansion is equal to or greater than the above value, warping may occur over the entire surface of the molded product as described above.
【0012】機械的強度に優れ、且つ上記成形収縮率も
しくは線膨張係数を満足する複合強化スチレン系成形材
料として、例えばABS中にガラス繊維、ガラスフレー
クまたはこれらの混合物等を樹脂組成物中に10〜50
重量%配合したものが挙げられる。通常射出成形におい
ては多量のスプル、ランナー等の廃材が発生するが、本
発明においては、複合強化スチレン系成形材料(B)に
使用する樹脂の一部もしくは全部として、上記廃材を粉
砕後、ガラス繊維を好適量添加して使用することもでき
る。本発明で得られた合成樹脂成形品を更に塗装処理す
ると成形品は表面鮮映性により優れたものとなる。塗装
は通常ウレタン塗料、アクリル塗料等を用いてスプレー
法等により行うことができる。As a composite reinforced styrenic molding material having excellent mechanical strength and satisfying the above-mentioned molding shrinkage or linear expansion coefficient, for example, glass fiber, glass flake or a mixture thereof in ABS is used in a resin composition. ~ 50
% By weight. Usually, a large amount of waste materials such as sprues and runners are generated in injection molding. However, in the present invention, as a part or all of the resin used for the composite reinforced styrenic molding material (B), after grinding the waste material, A suitable amount of fiber can be used. When the synthetic resin molded product obtained in the present invention is further subjected to a coating treatment, the molded product has better surface clarity. The coating can be usually performed by a spray method using a urethane paint, an acrylic paint or the like.
【0013】本発明の射出条件等は公知の条件が適用可
能である。また使用する射出成形機は、通常のものが使
用でき、以下の方法により成形品を製造できる。以下に
本発明の工程を例示する。 (1)シートの金型への装着 芳香族ポリカーボネートシート(A)の金型への装着
は、金型に複数のピンを設けておき、シートのそれに相
当する位置に穴をあけておき装着する方法と、金型内に
磁石を埋め込んでおき、シートのそれに相当する位置に
鉄片を貼つけておいて装着する方法などがある。シート
(A)は、金型キャビティの固定側に装着するのが望ま
しい。また接着層は、金型キャビティと接触しない方向
を向けて(成形材料の流れる面)装着する必要がある。 (2)型締め 上記シートを装着後、金型の型締めを行う。Known conditions can be applied to the injection conditions and the like of the present invention. The injection molding machine to be used can use a usual injection molding machine, and can manufacture a molded article by the following method. Hereinafter, the steps of the present invention will be exemplified. (1) Attaching the sheet to the mold To attach the aromatic polycarbonate sheet (A) to the mold, a plurality of pins are provided on the mold, and holes are formed at positions corresponding to those of the sheet. There is a method and a method in which a magnet is embedded in a mold, and an iron piece is attached to a position corresponding to that of a sheet and attached. The sheet (A) is desirably mounted on the fixed side of the mold cavity. In addition, the adhesive layer needs to be mounted so that it does not contact the mold cavity (the surface on which the molding material flows). (2) Clamping After mounting the sheet, the mold is clamped.
【0014】(3)溶融樹脂の射出 射出成形機から複合強化スチレン系成形材料(B)を射
出注入してシート(A)と成形材料(B)を積層一体成
形する。 (4)冷却、離型 樹脂の射出後、常法に従って溶融樹脂を冷却固化し、離
型後成形品を得る。 (5)塗装 自動車外装用もしくは家電用として得られた成形品を塗
装する場合、常法によって塗装する。上記成形によりシ
ート(A)と成形材料(B)は成形時の熱と圧力で接着
層を介して完全に熱溶着され、各々の面の成形収縮差が
あるにも関わらず、全面のソリはなく、成形品のシート
面は優れた外観性を有していた。(3) Injection of molten resin The composite reinforced styrenic molding material (B) is injected and injected from an injection molding machine, and the sheet (A) and the molding material (B) are integrally laminated. (4) Cooling and release After the resin is injected, the molten resin is cooled and solidified according to a conventional method, and a molded product is obtained after release. (5) Coating When coating a molded product obtained for the exterior of an automobile or for a household appliance, the coating is performed by an ordinary method. By the above molding, the sheet (A) and the molding material (B) are completely thermally welded through the adhesive layer by heat and pressure at the time of molding, and despite the molding shrinkage difference between the respective surfaces, the entire surface is warped. And the sheet surface of the molded article had excellent appearance.
【0015】以上本発明の製造方法、金型構造を説明し
たが、本発明は上記の説明に限定されるものではない。
また成形加工条件として、成形材料の温度は200℃以
上で成形することで、樹脂の流動性とシートの接着力を
高めることができる。金型温度は印刷の施されたシート
を使用する際は、インクの耐熱温度以下が好ましい。ま
た本発明により、品質的に鮮映性の良好な製品が得ら
れ、成形材料価格も安価であり、且つリサイクル材料も
使用可能なことからコストダウンが期待でき、さらには
環境保護効果が期待できる。Although the manufacturing method and the mold structure of the present invention have been described above, the present invention is not limited to the above description.
As the molding conditions, the molding material is molded at a temperature of 200 ° C. or higher, so that the fluidity of the resin and the adhesive strength of the sheet can be increased. When using a printed sheet, the mold temperature is preferably equal to or lower than the heat resistant temperature of the ink. Further, according to the present invention, a product with excellent clarity in quality can be obtained, the molding material price is low, and since a recycled material can be used, cost reduction can be expected, and further, an environmental protection effect can be expected. .
【0016】[0016]
【実施例】以下、実施例により本発明の詳細を説明す
る。尚、本実施例に於て成形品の評価は以下の方法によ
った。 鮮映性の評価 成形品表面に物体を写したとき、その像を目視にて観察
し、その歪み具合いから評価した。 ○:像の歪みが無い。 ×:像が歪んでいる。 衝撃性の評価 重さ10kgの球体を、高さ1mの位置から落下させて
衝撃による破壊形態より衝撃性を評価した。 ○:樹脂の飛散無し ×:樹脂の飛散有り シートと成形材料間の接着力の測定 シートと成形材料間の90度剥離強度測定を行った。測
定は、シートと成形材料の一体化された成形品の反ゲー
ト側より剥離させ、その90度剥離強度(kgf/c
m)をバネばかりにて測定した。評価は以下の基準によ
り判断した。 ○:90度剥離強度が5kgf/cm以上のもの ×:90度剥離強度が5kgf/cm未満のものThe present invention will be described below in detail with reference to examples. In this example, the evaluation of the molded article was performed by the following method. Evaluation of sharpness When an object was transferred to the surface of a molded article, the image was visually observed and evaluated based on the degree of distortion. :: There is no image distortion. X: The image is distorted. Evaluation of Impact Impact A sphere having a weight of 10 kg was dropped from a position having a height of 1 m, and impact impact was evaluated based on a form of destruction by impact. :: No scattering of resin ×: Scattering of resin Measurement of adhesive force between sheet and molding material 90 ° peel strength between sheet and molding material was measured. The measurement was performed by peeling the sheet and the molding material from the side opposite to the gate of the molded product, and the 90-degree peel strength (kgf / c
m) was measured with a spring only. Evaluation was made based on the following criteria. :: 90 ° peel strength of 5 kgf / cm or more ×: 90 ° peel strength of less than 5 kgf / cm
【0017】ソリの測定 三次元寸法測定機(三豊製作所製)を使用して、ソリの
評価を行った。成形品の最大高低差(△h)で評価し、
表示は以下の基準によった。 ○:成形品のソリ量が0.1mm以下のもの ×:成形品のソリ量が0.1mmを超えるもの 冷熱繰り返し試験 接着力、ソリに付いては、更に−30℃と80℃の繰り
返し冷熱試験を繰り返し試験を実施した。すなわち−3
0℃で2時間、80℃で2時間熱処理(尚、各温度に到
達するまでに2時間の変化時間を持たせた)する操作を
20回繰り返した後、接着力、ソリの評価を実施した。Measurement of warpage Warpage was evaluated using a three-dimensional dimension measuring machine (manufactured by Mitoyo Seisakusho). Evaluated by the maximum height difference (△ h) of the molded product,
The indication was based on the following criteria. :: The molded product has a warpage of 0.1 mm or less. X: The molded product has a warpage of more than 0.1 mm. Cooling / heat repetition test Adhesive strength, repetitive cooling / heating at −30 ° C. and 80 ° C. The test was repeated and the test was performed. That is, -3
The operation of heat-treating at 0 ° C. for 2 hours and 80 ° C. for 2 hours (a change time of 2 hours until each temperature was reached) was repeated 20 times, and then the adhesive strength and warpage were evaluated. .
【0018】実施例1 Tダイ法にて厚み0.5mmのポリカーボネート樹脂シ
ートを押出成形する際に、アクリル樹脂組成物とブチル
アクリレートを共重合させて得た、厚み50μmのフィ
ルムをラミネートして接着層付きポリカーボネート(以
下、PCシートという)を得た。該PCシートをプレス
機械で金型装着部の寸法(100mmφの円板形状)に
合わせてシートを打ち抜いた。金型キャビティは、成形
品の肉厚が3mmとなるように設計されている。上記金
型の固定側キャビティに該シートを接着層がキャビティ
と接触しない方向を向けて装着後、型締めし、射出成形
機でガラス繊維配合ABS樹脂材料(ダイセル化学
(株)製、商品名:セビアン−V20、組成物中のガラ
ス繊維配合割合:20重量%、成形収縮率は平行方向で
0.2%、垂直方向で0.4%であり、線膨張係数は2
×10-5/℃)を射出した。上記の成形条件は、樹脂温
度230℃、金型温度60℃、射出圧力1200kgf
/cm2 であった。該成形品にウレタン塗料を用いてス
プレー塗装を行い、製品としての各評価を行った。評価
結果を表1に示す。Example 1 When extruding a polycarbonate resin sheet having a thickness of 0.5 mm by the T-die method, a 50 μm-thick film obtained by copolymerizing an acrylic resin composition and butyl acrylate was laminated and bonded. A polycarbonate with a layer (hereinafter, referred to as a PC sheet) was obtained. The PC sheet was punched out by a press machine in accordance with the size of the mold mounting portion (disc shape of 100 mmφ). The mold cavity is designed so that the thickness of the molded product is 3 mm. After mounting the sheet in the cavity on the fixed side of the mold with the direction in which the adhesive layer does not contact the cavity, the mold is clamped, and an ABS resin material containing glass fiber (manufactured by Daicel Chemical Industries, Ltd., trade name: Sebian-V20, glass fiber content in the composition: 20% by weight, molding shrinkage 0.2% in the parallel direction, 0.4% in the vertical direction, and a coefficient of linear expansion of 2
× 10 -5 / ° C). The above molding conditions include a resin temperature of 230 ° C., a mold temperature of 60 ° C., and an injection pressure of 1200 kgf.
/ Cm 2 . The molded product was spray-coated using a urethane paint, and each evaluation as a product was performed. Table 1 shows the evaluation results.
【0019】実施例2 シート厚みを押出する際にシート厚みを0.3mmとし
た以外は実施例1と同様にして成形品を製造し、塗装後
の評価を行った。評価結果を表1に示す。Example 2 A molded product was produced in the same manner as in Example 1 except that the sheet thickness was 0.3 mm when extruding the sheet thickness, and the molded article was evaluated after coating. Table 1 shows the evaluation results.
【0020】比較例1 実施例に使用したと同様のABS樹脂材料を用いて、シ
ートを装着せずに非積層成形品を実施例と同様な条件で
作製し、その鮮映性の比較を行った。評価結果を表1に
示す。Comparative Example 1 Using the same ABS resin material as used in the example, a non-laminated molded article was prepared without mounting a sheet under the same conditions as in the example, and the sharpness was compared. Was. Table 1 shows the evaluation results.
【0021】[0021]
【表1】 実施例1 実施例2 比較例1 鮮映性 ○ ○ × 衝撃性 ○ ○ × 繰り返し冷熱試験前 1)接着力 ○ ○ − 2)ソリ ○ ○ − 繰り返し冷熱試験後 1)接着力 ○ ○ − 2)ソリ ○ ○ − [Table 1] Example 1 Example 2 Comparative Example 1 Sharpness ○ ○ × Impact ○ ○ × Before repeated thermal test 1) Adhesive ○ ○ -2) Warp ○ ○ -After repeated thermal test 1) Adhesive ○ ○ − 2) Warpage ○ ○ −
【0022】[0022]
【発明の効果】本発明によって得られる一体成形品は、
表面鮮映性に優れ、ソリが防止でき、シートとフィラー
含有材料間での接着力にも優れており、冷熱試験後の接
着力も優れている。According to the present invention, the integrally molded article obtained by the present invention is:
It has excellent surface clarity, can prevent warpage, has excellent adhesive strength between the sheet and the filler-containing material, and has excellent adhesive strength after a thermal test.
フロントページの続き (51)Int.Cl.7 識別記号 FI B29L 9:00 31:30 (56)参考文献 特開 平2−225015(JP,A) 特開 昭61−5943(JP,A) 特開 平3−150138(JP,A) 特開 平4−224920(JP,A) 特開 昭62−46627(JP,A) (58)調査した分野(Int.Cl.7,DB名) B29C 45/00 - 45/17 Continuation of the front page (51) Int.Cl. 7 Identification symbol FIB29L 9:00 31:30 (56) References JP-A-2-225015 (JP, A) JP-A-61-5943 (JP, A) JP-A-3-150138 (JP, A) JP-A-4-224920 (JP, A) JP-A-62-46627 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B29C 45 / 00-45/17
Claims (10)
品であって、荷重撓み温度〔ASTM D648(荷重
18.5kgf/cm 2 )〕110℃以下の複合強化スチ
レン系成形材料(B)と接着性を有する接着層を設けて
なる芳香族ポリカーボネートシート(A)を所定形状に
切断して、金型キャビティーの片面に該接着層が射出さ
れる成形材料(B)側となるように装着後、該複合強化
スチレン系成形材料(B)を該シート(A)上に射出注
入し、該シート(A)と該成形材料(B)を積層一体化
して得られる合成樹脂成形品(C)。1. A synthetic resin molded product obtained by an injection molding method, comprising a deflection temperature under load [ASTM D648 (load
18.5 kgf / cm 2 )] An aromatic polycarbonate sheet (A) provided with a composite reinforced styrenic molding material (B) having a temperature of 110 ° C. or less and an adhesive layer having adhesiveness is cut into a predetermined shape, and a mold cavity is cut. after mounting as adhesive layer becomes molding material (B) side is emitted to one side of the tee, the composite reinforced styrene molding material (B) was injected injected onto the sheet (a), the sheet (a ) with the molding material (B) laminated integrated obtained synthetic resin molded article (C).
厚みが0.3mm以上である請求項1に記載の合成樹脂
成形品(C)。2. The synthetic resin molded article (C) according to claim 1, wherein the thickness of the aromatic polycarbonate sheet (A) is 0.3 mm or more.
シート(A)が予め真空成形により形状を付与したもの
である請求項1に記載の合成樹脂成形品(C)。3. The synthetic resin molded product (C) according to claim 1, wherein the aromatic polycarbonate sheet (A) to be mounted on the mold has a shape previously imparted by vacuum molding.
が、ポリカーボネート、ポリカーボネート/ポリエチレ
ンテレフタレート系樹脂組成物、ポリカーボネート/ポ
リブチレンテレフタレート系樹脂組成物、ポリカーボネ
ート/ポリアミド系樹脂組成物、もしくはポリカーボネ
ート/スチレン系樹脂組成物のいずれかである請求項1
に記載の合成樹脂成形品(C)。4. An aromatic polycarbonate sheet (A)
Is a polycarbonate, a polycarbonate / polyethylene terephthalate resin composition, a polycarbonate / polybutylene terephthalate resin composition, a polycarbonate / polyamide resin composition, or a polycarbonate / styrene resin composition.
(C).
化用充填剤が、スチレン系樹脂組成物とガラス繊維もし
くはガラスフレークを含む組成物である請求項1に記載
の合成樹脂成形品(C)。5. The reinforcing filler of the composite reinforced styrenic molding material (B) comprises a styrene resin composition and glass fiber.
The synthetic resin molded article (C) according to claim 1, which is a composition containing glass flakes .
(厚み3.2mm、外径101.6mmφの円板金型を
使用して成形品を得たときの成形収縮率であって、式1
00×(金型寸法−成形品の寸法)/(金型寸法)より
求められる値)が、樹脂ゲートに平行方向で0.3%以
下、垂直方向で0.5%以下である請求項1に記載の合
成樹脂成形品(C)。6. A molding shrinkage ratio of a composite reinforced molding material (B) (a molding shrinkage ratio when a molded product is obtained using a disk mold having a thickness of 3.2 mm and an outer diameter of 101.6 mmφ), 1
The value of 00 × (mold size−mold size) / (value obtained from mold size) is 0.3% or less in the direction parallel to the resin gate and 0.5% or less in the vertical direction. (C).
膨張係数が、5×10-5/℃以下である請求項1に記載
の合成樹脂成形品(C)。7. The synthetic resin molded product (C) according to claim 1, wherein the composite reinforced styrenic molding material (B) has a coefficient of linear expansion of 5 × 10 −5 / ° C. or less.
(C)を更に塗装処理して得られた表面鮮映性に優れる
合成樹脂成形品(D)。8. A synthetic resin molded article (D) having excellent surface clarity, obtained by further coating the synthetic resin molded article (C) according to claim 1.
に記載の合成樹脂成形品(C)。9. The molded article is an automobile exterior material.
(C).
形品であって、荷重撓み温度〔ASTM D648(荷
重18.5kgf/cm 2 )〕110℃以下の複合強化ス
チレン系成形材料(B)と接着性を有する接着層を設け
てなる芳香族ポリカーボネートシート(A)を所定形状
に切断して、金型キャビティーの片面に該接着層が射出
される成形材料(B)側となるように装着後、該複合強
化スチレン系成形材料(B)を該シート(A)上に射出
注入し、該シート(A)と該成形材料(B)を積層一体
化する合成樹脂成形品(C)の製造法。10. A synthetic resin molded product obtained by an injection molding method, comprising a load deflection temperature [ASTM D648 (load
Weight 18.5 kgf / cm 2 )] An aromatic polycarbonate sheet (A) provided with a composite reinforced styrenic molding material (B) having a temperature of 110 ° C. or less and an adhesive layer having an adhesive property is cut into a predetermined shape, and a mold is formed. after mounting as adhesive layer on one side of the cavity is shaped material (B) side to be emitted, the composite reinforced styrene molding material (B) was injected injected onto the sheet (a), the sheet ( a) and the molding material (B) to be laminated and integrated synthetic resin molded article production method of (C).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21046793A JP3024667B2 (en) | 1993-08-25 | 1993-08-25 | Synthetic resin molded product and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21046793A JP3024667B2 (en) | 1993-08-25 | 1993-08-25 | Synthetic resin molded product and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0760786A JPH0760786A (en) | 1995-03-07 |
JP3024667B2 true JP3024667B2 (en) | 2000-03-21 |
Family
ID=16589826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21046793A Expired - Lifetime JP3024667B2 (en) | 1993-08-25 | 1993-08-25 | Synthetic resin molded product and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3024667B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4811938B2 (en) * | 2006-08-17 | 2011-11-09 | 旭化成ケミカルズ株式会社 | Low linear expansion multilayer extrusion sheet |
JP5252791B2 (en) * | 2006-08-17 | 2013-07-31 | 旭化成ケミカルズ株式会社 | Low linear expansion sheet |
-
1993
- 1993-08-25 JP JP21046793A patent/JP3024667B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JPH0760786A (en) | 1995-03-07 |
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