JPS5855900B2 - Black composite material for molding using pulp waste - Google Patents
Black composite material for molding using pulp wasteInfo
- Publication number
- JPS5855900B2 JPS5855900B2 JP52100736A JP10073677A JPS5855900B2 JP S5855900 B2 JPS5855900 B2 JP S5855900B2 JP 52100736 A JP52100736 A JP 52100736A JP 10073677 A JP10073677 A JP 10073677A JP S5855900 B2 JPS5855900 B2 JP S5855900B2
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- composite material
- molding
- black composite
- pulp waste
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
Description
【発明の詳細な説明】
本発明は汎用製品等の成形に使用することができるパル
プ廃棄物を利用した熱可塑性樹脂との複合材料である。DETAILED DESCRIPTION OF THE INVENTION The present invention is a composite material made of pulp waste and a thermoplastic resin that can be used for molding general-purpose products.
従来、タルク類、木粉類等の無機質、有機質の粉体及び
繊維を熱可塑性樹脂に配合した複合材料は数多く開発さ
れているが、それらは物性面で向上しているが、比重が
犬となること、コストが高くなることに欠点があった。Up until now, many composite materials have been developed in which thermoplastic resins are blended with inorganic and organic powders and fibers such as talc and wood flour, but although these have improved physical properties, their specific gravity is comparable to that of other materials. The disadvantage was that the cost was high.
本発明は上記の点を改良するもので、製紙工場で排出さ
れるパルプスラッジを焼成した炭化物（以下パルプ炭化
物という）をオレフィン系熱可塑性樹脂（以下樹脂分と
いう）に混合し造粒した黒色成形品用の成形用複合材料
である。The present invention improves the above points, and consists of a black molded product made by mixing olefinic thermoplastic resin (hereinafter referred to as resin component) with olefinic thermoplastic resin (hereinafter referred to as resin component) and granulating a carbide obtained by burning pulp sludge discharged from a paper mill (hereinafter referred to as pulp carbide). It is a composite material for molding products.
本発明による複合材料は従来品と同等の機械的強度を有
し、しかもパルプ炭化物が繊維の形で存在するため成形
後の歪、熱変形に対して抵抗があり、比重も比較的低い
等の特徴がある。The composite material of the present invention has the same mechanical strength as conventional products, and since pulp carbide exists in the form of fibers, it has resistance to distortion and thermal deformation after molding, and has a relatively low specific gravity. It has characteristics.
またもう一つの特徴として、パルプ炭化物による黒色の
着色が安価にできることである。Another feature is that it can be colored black with pulp carbide at low cost.
パルプ炭化物は主成分がカーボンと炭化繊維であるので
、３重量多以上の添加で充分な着色が可能である。Since the main components of pulp carbide are carbon and carbonized fibers, sufficient coloring can be achieved by adding 3 or more weights.
本発明者等は上記のような複合材料について研究を重ね
た結果、その配合に釦いて樹脂分４０〜９７重量多、パ
ルプ炭化物３〜６０重量饅の範囲で成形に有用な複合材
料が得られることを見出し九
し、かじ、自動車内装品等に使用する場合は、耐衝撃性
軽量化が重要視せられることが多く、その場合パルプ分
が過多であると、耐衝撃性が悪化し比重も大きくなる。As a result of repeated research on the above-mentioned composite materials, the inventors of the present invention have found that, depending on the composition, a composite material useful for molding can be obtained with a resin content of 40 to 97% by weight and a pulp carbide content of 3 to 60% by weight. When using the pulp for steering wheels, automobile interior parts, etc., impact resistance and weight reduction are often emphasized, and if the pulp content is too large, the impact resistance will deteriorate and the specific gravity will also decrease. growing.
その意味で複合材料としての機械的強度に強い特質を出
し、しかも樹脂の持つ有用な性質を損なうことのない配
合比としては樹脂分６０〜８０重量多、パルプ炭化物２
０〜４０重量多の範囲が最適であることを知った。In this sense, the blending ratio that provides strong mechanical strength as a composite material and does not impair the useful properties of the resin is 60 to 80 parts by weight of resin and 2 parts of pulp carbide.
It has been found that a range of 0 to 40 weights is optimal.
以上のように本発明は省資材、公害防止及び産業廃棄物
利用の観点から製紙工場廃棄物を有効に利用するもので
ある。As described above, the present invention effectively utilizes paper mill waste from the viewpoints of material saving, pollution prevention, and industrial waste utilization.
即ち、パルプ廃棄物の特徴を生かして、樹脂との複合的
な相乗効果によってその価（直を高めるものである。That is, it takes advantage of the characteristics of pulp waste and increases its value through a complex synergistic effect with resin.
従って本発明においては、樹脂の選択が重要で、成形上
物−なパルプ分の分散が行われ、しかも耐衝撃性を上げ
るためには使用樹脂はフローが低く、低温脆化の良い熱
可塑性樹脂、例えばポリエチレン等が適当である。Therefore, in the present invention, the selection of resin is important, and in order to ensure proper dispersion of the pulp content during molding, and to increase impact resistance, the resin used is a thermoplastic resin with low flow and good low-temperature embrittlement. For example, polyethylene is suitable.
本発明に使用されるパルプ炭化物は、製紙工場で排出さ
れるパルプスラッジを乾燥して水分約ｌＯ％としたもの
をロータリーキルンで温度約３００℃±２５℃、１〜１
．５時間焼威したもので、炭化繊維質としての強度を有
しているものである。The pulp carbide used in the present invention is obtained by drying pulp sludge discharged from a paper mill to a moisture content of about 10%, and then processing it in a rotary kiln at a temperature of about 300°C ± 25°C for 1 to 1 hour.
．． It was burnt for 5 hours and has the strength of carbonized fiber.
本発明による複合材料を造る工程は、まず樹脂及びパル
プ炭化物を秤量し、これを混合し、押出機にかけ次いで
ペレタイザーで４〜８メツシユの製品とするものである
。The process of making the composite material according to the present invention is to first weigh the resin and pulp carbide, mix them, apply them to an extruder, and then use a pelletizer to form a product into 4 to 8 meshes.
以上のようにして得られた複合材料は材料コストに比し
、強度の痛い成形品が得られるので、その応用面は広汎
である。The composite material obtained as described above can be used in a wide range of applications because it can produce molded products with high strength compared to the material cost.
実施例 熱可塑性樹脂としてポリエチレンを８０重量咎。Example 80 weight polyethylene as thermoplastic resin.
パルプスラッジを乾燥して水分ｌｏ％としたものをロー
タリーキルンで３００°Ｃに１時間焼成したパルプ炭化
物を２０重量係配合した混合物を充分に混練し、押出機
次いでペレタイザーにかけて約６メツシユに造粒した。Pulp sludge was dried to a moisture content of lo%, which was then calcined in a rotary kiln at 300°C for 1 hour. A mixture containing 20% by weight of pulp carbide was thoroughly kneaded, and the mixture was granulated into approximately 6 meshes using an extruder and then a pelletizer. .
この造粒表を射出成形機（東芝機械製ｌＳ−３１５８−
Ｖ）で底形した物品の物性は次の通りであった。This granulation table was applied to an injection molding machine (Toshiba Machine 1S-3158-
The physical properties of the bottom-shaped article V) were as follows.
Claims (1)
てパルプスラッジを約３００℃で焼成した炭化物を３〜
６０重量多添加、混合したことを特徴とするパルプ廃棄
物を利用する成形用黒色複合材料。140-97% by weight of olefinic thermoplastic resin and 3-3% carbide of pulp sludge calcined at about 300°C.
A black composite material for molding using pulp waste characterized by adding and mixing a large amount of 60% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52100736A JPS5855900B2 (en) | 1977-08-23 | 1977-08-23 | Black composite material for molding using pulp waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52100736A JPS5855900B2 (en) | 1977-08-23 | 1977-08-23 | Black composite material for molding using pulp waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5434381A JPS5434381A (en) | 1979-03-13 |
| JPS5855900B2 true JPS5855900B2 (en) | 1983-12-12 |
Family
ID=14281851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52100736A Expired JPS5855900B2 (en) | 1977-08-23 | 1977-08-23 | Black composite material for molding using pulp waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855900B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014264A (en) * | 1973-06-07 | 1975-02-14 | ||
| JPS5144178A (en) * | 1974-10-14 | 1976-04-15 | Tomoegawa Paper Co Ltd | Parupukojo oyobi * mataha seishikojono suratsujioshuzaitosuru seikeibutsuno seizohoho |
-
1977
- 1977-08-23 JP JP52100736A patent/JPS5855900B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014264A (en) * | 1973-06-07 | 1975-02-14 | ||
| JPS5144178A (en) * | 1974-10-14 | 1976-04-15 | Tomoegawa Paper Co Ltd | Parupukojo oyobi * mataha seishikojono suratsujioshuzaitosuru seikeibutsuno seizohoho |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5434381A (en) | 1979-03-13 |
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