JP3996914B2 - 木粉樹脂押出成形品の製造方法 - Google Patents
木粉樹脂押出成形品の製造方法 Download PDFInfo
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- JP3996914B2 JP3996914B2 JP2004191925A JP2004191925A JP3996914B2 JP 3996914 B2 JP3996914 B2 JP 3996914B2 JP 2004191925 A JP2004191925 A JP 2004191925A JP 2004191925 A JP2004191925 A JP 2004191925A JP 3996914 B2 JP3996914 B2 JP 3996914B2
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- molded product
- wood powder
- intermediate molded
- foaming agent
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- 239000002023 wood Substances 0.000 title claims description 122
- 239000000843 powder Substances 0.000 title claims description 112
- 229920005989 resin Polymers 0.000 title claims description 90
- 239000011347 resin Substances 0.000 title claims description 90
- 238000001125 extrusion Methods 0.000 title claims description 40
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 235000012438 extruded product Nutrition 0.000 claims description 59
- 239000004088 foaming agent Substances 0.000 claims description 57
- 239000000203 mixture Substances 0.000 claims description 48
- 238000004513 sizing Methods 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 10
- 235000013312 flour Nutrition 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000047 product Substances 0.000 description 68
- 229920005672 polyolefin resin Polymers 0.000 description 21
- 238000005187 foaming Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 16
- 239000000463 material Substances 0.000 description 9
- -1 polypropylene Polymers 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 241001149900 Fusconaia subrotunda Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
[実施例1]
オレフィン系樹脂1としてはMFR(メルトフローレイト)値40〜50g/10minのポリプロピレンを用い、木粉2としては平均粒径45メッシュのバージン木粉2を用い、相溶化剤としてはマレイン酸変性ポリプロピレンを用い、溶融張力を向上させる添加剤としてはアクリル変性ポリテトラフルオロエチレンを用い、発泡剤にはアゾジカーボンアミドを用いた。そして、上記オレフィン系樹脂1を30重量%、木粉2を65重量%、相溶化剤を3重量%、添加剤を1.5重量%を混錬機で混錬させて混合組成物3を得た。また、この混合組成物3には押出成形機7に導入する直前に0.5重量%の発泡剤を配合させた。押出成形機7としてはコニカル2軸押出機を用いた。上記押出成形機7にて行う押出成形は、押出成形金型7aの温度を190〜210℃とし、押出成形金型7aの圧力を15MPaとして行った。発泡剤を配合した混合組成物3に押出成形を施して中間成形物5を形成し、この中間成形物5にサイジングを施して成形し、木粉樹脂押出成形品6を得た。なお、中間成形物5及び木粉樹脂押出成形品6の形状としては、図3(a)のように縦幅30mmで且つ横幅150mmの縦断面矩形状の長尺の中実板材10とした。
[実施例2]
基本的に上記[実施例1]と同様にして木粉樹脂押出成形品6を製造した。なお、発泡剤を配合した混合組成物3に押出成形を施してできる中間成形物5及び、この中間成形物5にサイジングを施してできる木粉樹脂押出成形品6の形状としては、図3(b)のように縦幅30mmで且つ横幅150mmの縦断面矩形状で、上下左右の各外面から厚さ3mmを残すように内部に中空部9を形成してなる長尺の中空板材11とした。つまり、実施例1とは、中間成形物5や木粉樹脂押出成形品6の形状を異ならせて製造したものである。
[比較例1]
上記[実施例1]と同様の混合組成物3を得た上で、発泡剤を配合させずにこの混合組成物3に上記[実施例1]と同様に押出成形、サイジングを順に施して木粉樹脂押出成形品6を得た。
[比較例2]
上記[実施例1]と同様の混合組成物3を得た上で、この混合組成物3に発泡剤を2重量%配合し、この発泡剤を配合した混合組成物3に上記[実施例1]と同様に押出成形、サイジングを順に施して木粉樹脂押出成形品6を得た。
[比較例3]
平均粒径90〜110メッシュの木粉2を[実施例1]同様のオレフィン系樹脂1や各種添加剤と混錬して混合組成物3を得て、この混合組成物3に[実施例1]同様に発泡剤を配合し、押出成形、サイジングを順に施して木粉樹脂押出成形品6を得た。
2 木粉
3 混合組成物
4 気泡
5 中間成形物
6 木粉樹脂押出成形品
7 押出成形機
7a 押出成形金型
7b ダイランド
8 サイジング装置
8a サイジング金型
8b 冷却部
9 中空部
S 隙間
Claims (2)
- オレフィン系樹脂を15〜45重量%、平均粒径20〜80メッシュの木粉を50〜80重量%、上記木粉とオレフィン系樹脂とを密着させるための相溶化剤、溶融張力向上作用を有する添加剤を混合した混合組成物に発泡剤を0.1〜1.0重量%配合し、この発泡剤配合の混合組成物に押出成形を施して中間成形物を成形し、中間成形物を発泡剤の発泡によってサイジング装置のサイジング金型の断面形状よりも膨張させ且つクッション性を備えさせ、次いでこの中間成形物を引取機によって引き取らせ、この中間成形物をサイジング装置のサイジング金型に導入する際に中間成形物の内部に存する発泡剤の発泡による気泡を木粉間の隙間から外方へ放出させ、その上で、上記クッション性を利用して中間成形物をサイジング金型の内部に馴染ませて上記中間成形物にサイジングを施し、木粉樹脂押出成形品を得るようにしたことを特徴とする木粉樹脂押出成形品の製造方法。
- 上記中間成形物の形状を中空形状にしたことを特徴とする請求項1記載の木粉樹脂押出成形品の製造方法。
Priority Applications (1)
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JP2004191925A JP3996914B2 (ja) | 2004-06-29 | 2004-06-29 | 木粉樹脂押出成形品の製造方法 |
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JP2004191925A JP3996914B2 (ja) | 2004-06-29 | 2004-06-29 | 木粉樹脂押出成形品の製造方法 |
Publications (2)
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JP2006007727A JP2006007727A (ja) | 2006-01-12 |
JP3996914B2 true JP3996914B2 (ja) | 2007-10-24 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008052265A (ja) * | 2006-07-25 | 2008-03-06 | Yamaha Corp | 木粉含有樹脂形成体、木粉含有樹脂形成体の製造方法、鍵盤楽器の黒鍵 |
KR101032965B1 (ko) | 2011-01-06 | 2011-05-09 | 최승균 | 폴리프로필렌-식물성 잔재물 성형용 수지 조성물 및 그 제조 방법 |
JP6619165B2 (ja) * | 2015-06-26 | 2019-12-11 | 株式会社生出 | 植物由来成分を含有するシート状又は板状押出発泡体の製造方法 |
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