JP5062810B2 - 複合樹脂成形体及びその成形方法 - Google Patents
複合樹脂成形体及びその成形方法 Download PDFInfo
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- JP5062810B2 JP5062810B2 JP2006255399A JP2006255399A JP5062810B2 JP 5062810 B2 JP5062810 B2 JP 5062810B2 JP 2006255399 A JP2006255399 A JP 2006255399A JP 2006255399 A JP2006255399 A JP 2006255399A JP 5062810 B2 JP5062810 B2 JP 5062810B2
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- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14786—Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
-
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Knitting Of Fabric (AREA)
Description
上記繊維シート材は、編物で構成されていると共に、その裏目側が上記成形体本体に対向するように設けられ、且つ繊維表面が該成形体本体に溶融固化して一体化していることを特徴とする。
上記繊維シート材を構成する繊維が上記成形体本体を構成する樹脂材と同種の樹脂材で形成されていることを特徴とする。
上記繊維シート材は、一方の面が表目のみを有し且つ他方の面が裏目のみを有することを特徴とする。
成形型のキャビティ内の所定位置に、編物の繊維シート材を、その表目側が成形面に対向するように配置した後、該繊維シート材の裏目側において、溶融した樹脂材から成形体本体を成形することを特徴とする。
<試験評価用試験片>
−実施例1−
射出成形機((株)日本製鋼所 型番:J350ED)に引張試験の試験片成形用の成形型を取り付け、超高分子量ポリエチレン繊維(東洋紡(株)社製 商品名:ダイニーマ フィラメント本数1170本で1320dtex)で形成された平編物を、その表目側が成形面に対向するように成形型に配置した。そして、成形型温度を50℃及びシリンダ温度(樹脂材の温度)を280℃とした、溶融したポリエチレン樹脂(出光興産(株)社製 商品名:211J)を射出成形機から成形型内に射出充填し、長さ155.0mm、幅12.5mm及び厚さ3.0mmの板状の試験片を射出成形した。成形された試験片は、一方側の面に平編物の繊維シート材が、その裏目側が試験片本体に対向するように設けられてインサートされたものとなった。
成形型温度を20℃としたことを除いて実施例1と同様に試験片を成形した。そして、これらを実施例2の試験片とした。
シリンダ温度を240℃としたことを除いて実施例1と同様に試験片を成形した。そして、これらを比較例1の試験片とした。
成形型温度を20℃及びシリンダ温度を240℃としたことを除いて実施例1と同様に試験片を成形した。そして、これらを比較例2の試験片とした。
実施例1〜2及び比較例1〜2のそれぞれの成形型温度条件及びシリンダ温度条件で、繊維シート材を有さない樹脂材だけの試験片を成形した。そして、これらをそれぞれC−1〜C−4とした。
実施例1〜2、比較例1〜2及びC−1〜C−4のそれぞれについて、精密万能試験機(島津製作所(株)社製 製品名:オートグラフAG−IS)を用いて引張試験を行った。引張試験は、JIS K7161に準じ、クロスヘッドスピードを50mm/min、チャック間距離を115mmとし、常温下で行った。また、引張試験は、ウェール試験片及びコース試験片のそれぞれについて行った。
図4及び表1は試験評価結果を示す。
<試験評価用試験片>
−実施例1−
実施例1の試験片であって、長さ80.0mm、幅12.5mm及び厚さ3.0mmのものを上記と同様にして成形した。試験片は、ウェール試験片及びコース試験片の両方を成形した。
平編物を、その裏目側が成形面に対向するように成形型に配置したことを除いて実施例1と同様に試験片を成形した。そして、これを比較例3の試験片とした。比較例3の試験片は、一方側の面に平編物の繊維シート材が、その表目側が試験片本体に対向するように設けられてインサートされたものである。試験片は、長さ155.0mm、幅12.5mm及び厚さ3.0mmのもの及び長さ80.0mm、幅12.5mm及び厚さ3.0mmのもののそれぞれについて、ウェール試験片及びコース試験片の両方を成形した。
C−1のコントロール試験片であって、長さ80.0mm、幅12.5mm及び厚さ3.0mmのものを上記と同様にして成形した。
−引張試験−
比較例3の長さ155.0mm、幅12.5mm及び厚さ3.0mmの試験片について、上記と同様に引張試験を行った。引張試験は、ウェール試験片及びコース試験片のそれぞれについて行った。
実施例1、比較例3及びコントロール試験片C−1のそれぞれの長さ80.0mm、幅12.5mm及び厚さ3.0mmの試験片について、引張圧縮試験機((株)今田製作所社製 型式:SV−201)を用いて曲げ試験を行った。曲げ試験は、JIS K7171に準じ、クロスヘッドスピードを15.5mm/min、支持点間距離を48mmとし、常温下で行った。また、実施例1及び比較例3については、繊維シート材が下側になるように試験片を配置し、ウェール試験片及びコース試験片のそれぞれについて曲げ試験を行った。
図5、6及び表2は試験評価結果を示す。
11 ビーム本体(成形体本体)
11a 前面部
11b 側面部
11c 没入部
11d リブ
12 繊維シート材
20 成形型
21 第1成形型
22 第2成形型
30 射出成形機
C キャビティ
L 曲線部分
S 直線部分
Claims (4)
- 樹脂材製の成形体本体の表面に繊維シート材をインサートしてなる複合樹脂成形体であって、
上記繊維シート材は、編物で構成されていると共に、その裏目側が上記成形体本体に対向するように設けられ、且つ繊維表面が該成形体本体に溶融固化して一体化していることを特徴とする複合樹脂成形体。 - 請求項1に記載された複合樹脂成形体において、
上記繊維シート材を構成する繊維が上記成形体本体を構成する樹脂材と同種の樹脂材で形成されていることを特徴とする複合樹脂成形体。 - 請求項1又は2に記載された複合樹脂成形体において、
上記繊維シート材は、一方の面が表目のみを有し且つ他方の面が裏目のみを有することを特徴とする複合樹脂成形体。 - 請求項1乃至3のいずれかに記載された複合樹脂成形体の成形方法であって、
成形型のキャビティ内の所定位置に、編物の繊維シート材を、その表目側が成形面に対向するように配置した後、該繊維シート材の裏目側において、溶融した樹脂材から成形体本体を成形することを特徴とする複合樹脂成形体の成形方法。
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