JPS6374615A - Reinforced reaction injection molding method - Google Patents
Reinforced reaction injection molding methodInfo
- Publication number
- JPS6374615A JPS6374615A JP22019986A JP22019986A JPS6374615A JP S6374615 A JPS6374615 A JP S6374615A JP 22019986 A JP22019986 A JP 22019986A JP 22019986 A JP22019986 A JP 22019986A JP S6374615 A JPS6374615 A JP S6374615A
- Authority
- JP
- Japan
- Prior art keywords
- calcium sulfate
- fiber
- molded
- injection molding
- single crystal
- 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.)
- Pending
Links
- 238000010133 reinforced reaction injection moulding Methods 0.000 title description 2
- 239000000835 fiber Substances 0.000 claims abstract description 30
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000013078 crystal Substances 0.000 claims abstract description 13
- 239000012778 molding material Substances 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 238000010107 reaction injection moulding Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 21
- 239000000945 filler Substances 0.000 description 18
- 239000002994 raw material Substances 0.000 description 11
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000009472 formulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000002557 mineral fiber Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000218691 Cupressaceae Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は１強化フィラーによる製品面の肌荒れ状態を
防止するとともに成形材料の増粘度を抑し、ミキシング
性及び配管内の圧力損失の改善を可能とする強化反応射
出成形方法に関する。Detailed Description of the Invention (Field of Industrial Application) This invention prevents roughening of the product surface caused by the reinforcing filler, suppresses the increase in viscosity of the molding material, and improves mixing performance and pressure loss in piping. The present invention relates to a reinforced reaction injection molding method that makes it possible.
（従来の技術）
従来、この檜の反応射出成形方法として５成形品塗装弐
面の鮮映性を向上せんがために、成形材料１例えばポリ
オール、イソシアネートなどに非常に細かいフィラーを
混入しておき、成形にあたジイソシアネートと混合して
型内に射出成形するものが知られている。(Prior art) Conventionally, in this reaction injection molding method for cypress, very fine fillers were mixed into the molding material 1, such as polyol, isocyanate, etc., in order to improve the sharpness of the painted second side of the molded product. It is known that the mixture is mixed with a diisocyanate and then injection molded into a mold.
（発明が解決しようとする問題点ン
しかしながら、このような従来例にあっては、フィラー
粒子が成形材料中にミクロ分散され１表面の平滑な成形
品が得られる反面、細かいフィラーになる程フィラー粒
子の添加に伴ない成形材料の粘度上昇を来し、ミキシン
性の低下、配管内の圧力損失を起す問題点があり之。(Problems to be Solved by the Invention) However, in such conventional examples, filler particles are microdispersed in the molding material and a molded product with a smooth surface can be obtained, but on the other hand, the finer the filler, the more the filler particles are dispersed in the molding material. There are problems in that the addition of particles increases the viscosity of the molding material, resulting in a decrease in mixability and pressure loss in the piping.
この発明は、かかる問題点に着目して案出され次もので
あって、塗装表面の鮮映性を確保するとともに成形材料
の瑠粘度會抑止し、ミキシング性の向上及び配管内の圧
力損失の少ない強化反応射出成形方法を得んとするもの
である。This invention was devised in view of these problems, and it ensures the sharpness of the painted surface, suppresses the viscosity of the molding material, improves mixing performance, and reduces pressure loss in piping. The purpose is to obtain a reaction injection molding method with less reinforcement.
（問題点を解決する九めの手段）
この発明は、成形材料に硫酸カルシウム単結晶繊維を添
加し、射出成形機で射出成形することを、その構成とし
ている。(Ninth Means for Solving the Problems) The present invention has a structure in which calcium sulfate single crystal fibers are added to a molding material and injection molding is performed using an injection molding machine.
（作用）
硫酸カルシウム単結晶繊維は、塗装弐面の鮮映性を確保
するとともに成形材料の粘度上昇を低く抑え、ミキシン
グ性の低下、射出成形機などの配管内での圧力損失を防
止する。さらに、ａ酸カルシウム単結晶繊維のＬ／Ｄが
大きいため充分な補強性をもつとともに長さが短かい几
め配向性が低くなる。(Function) Calcium sulfate single-crystal fibers ensure the sharpness of the second side of the coating, suppress the increase in viscosity of the molding material, and prevent a drop in mixing performance and pressure loss in piping of injection molding machines. Furthermore, since the L/D of the calcium a-acid single crystal fiber is large, it has sufficient reinforcing properties and has a low tight orientation due to its short length.
（実施例）
以下、この発明ｔ−実施例および比較例に基づいて説明
する。(Example) Hereinafter, a description will be given based on an example of the present invention and a comparative example.
実施例及び比較例の各原料は以下の通シである。The raw materials used in Examples and Comparative Examples are as follows.
イ６本実施例
ａ、 使用フィラー：硫酸カルシウム単結晶繊維（商品
名フランクリンフアイ
バーＡ−３０）
平均繊維長 ５０〜６０μｍ
平均繊維径 ２μｍ
アスペクト比＋ Ｌ／Ｄ ） ２５〜３０ｂ、使用ウ
レタン処方
下衣に示すとおりである。A6 Example a, Filler used: Calcium sulfate single crystal fiber (trade name Franklin Fiber A-30) Average fiber length 50-60 μm Average fiber diameter 2 μm Aspect ratio + L/D) 25-30b, Urethane prescription lower garment used As shown below.
第 １ 表
口、比較例１
ａ、 ｆ用フィラー；加工鉱物１＊維（商品名プロセス
ドミネラルファイバーＪ
平均繊維長 ２２０μｍ
平均繊維径 ４〜６μｍ
アスペクト比（Ｌ／Ｄ）４０〜４６
ｂ、使用ウレタン処方
前記実施例のものと同じである。Filler for 1st front opening, Comparative Example 1 a, f; Processed Mineral Fiber 1*Fiber (Product name: Processed Mineral Fiber J Average fiber length: 220 μm Average fiber diameter: 4 to 6 μm Aspect ratio (L/D): 40 to 46 b, used The urethane formulation was the same as in the previous example.
ハ、比較例２
ａ、使用フィラー：ガラス短繊維（商品名ｌ／１６“ミ
ルドファイバー参７３１ ＤＡ）
平均繊維長 １４０μｍ
平均繊維径 １０μｍ
アスペクト比（Ｌ／Ｄ） １４
ｂ、使用ウレタン処方
前記実施例のものと閤じておる。C. Comparative Example 2 a. Filler used: Short glass fiber (trade name: l/16" milled fiber 731 DA) Average fiber length 140 μm Average fiber diameter 10 μm Aspect ratio (L/D) 14 b. Urethane prescription used in the previous example I think of it as something like that.
二、比較例３
ａ、使用フィラー：ガラス短繊維（商品名ガラスカット
ファイバーＦＥＳＳＯＯ５）
平均繊維長 １２０μｍ
平均繊維径 １０４ｍ
アスペクト比（Ｌ７Ｄ） １２
ｂ、使用ウレタン処方
前記実施例のものと同じである。2. Comparative Example 3 a. Filler used: Short glass fiber (trade name: glass cut fiber FESSOO5) Average fiber length: 120 μm Average fiber diameter: 104 m Aspect ratio (L7D) 12 b. Urethane formulation used: Same as in the previous example.
ホ、比較例４
ａ、 使用フィラー：天然カルシウムメタシリケート（
商品名ウオラストナイト
ＮＡＹＤ−Ｇ）
平均繊維長 １１０μｍ
平均繊維径 ８μｍ
アスペクト比（Ｌ／Ｄ） １３〜１５ｂ、使用ウレタ
ン処方
前記実施例のものと同じである。E, Comparative Example 4 a, Filler used: natural calcium metasilicate (
(trade name: Wollastonite NAYD-G) Average fiber length: 110 μm Average fiber diameter: 8 μm Aspect ratio (L/D): 13-15b The urethane formulation used is the same as that of the previous example.
へ、比較例５
ａ、使用フィラー：チタン酸カリウム単結晶繊維（商品
名テイスモＤ）
平均繊維長 １０〜２０４ｍ
平均繊維径 ０．２〜０．５μｍ
アスペクト比（Ｌ／ｐ ） ４０ ＃ｍｂ、ｍ用。レ
タン処方
前記実施例のものと同じでろる。Comparative Example 5 a. Filler used: Potassium titanate single crystal fiber (trade name Teismo D) Average fiber length 10-204 m Average fiber diameter 0.2-0.5 μm Aspect ratio (L/p) 40 #mb, m for. The urethane formulation was the same as that of the previous example.
なお、実施例並びに各比較例においては、夫々フィラー
添加吊金１０ｆｆｉ：１１％としている。In addition, in the examples and each comparative example, the filler addition hanger was set to 10ffi: 11%.
このような原料を実施例及び各比較例においては、Ｒ−
ＲＩＭ法をもって成形品を作成したものである。Ｉｌｌ
ち、ポリオール成分にフィラー全酢加し１Ｌこれとイソ
シアネート成分金型内に備突混合し、成形品全作成し次
。In Examples and Comparative Examples, such raw materials were used as R-
The molded product was created using the RIM method. Ill
First, add 1L of filler to the polyol component and mix it with the isocyanate component in a mold to create the entire molded product.
上記のような原料混合比によって反応射出成形品を得九
後、成形品に焼付は塗装を施すこと金行った。After obtaining a reaction injection molded product using the above raw material mixing ratio, the molded product was baked and painted.
第１図に示すグラフは、実施例、比較例３及び比較例５
において、充填剤（フィラー）の添加量ｋｆえた場合（
温度は一定Ｊの、原料粘度（：ＣＰＳ）の値全示してい
る。The graph shown in FIG.
, when the amount of filler added kf is increased (
The temperature is constant J, and all values of raw material viscosity (CPS) are shown.
同図かられかるように、本実施例（硫酸カルシウム単結
晶１ｊｌｔ維含有）は、比較例５（チタン酸カリウム単
結晶繊維含有）ニジも、充填剤添加量の増加に伴なう粘
度上昇が低く、比較例３のそれよシも高くなっている。As can be seen from the figure, this example (containing 1 jlt calcium sulfate single crystal fiber) and Comparative Example 5 (containing potassium titanate single crystal fiber) did not exhibit an increase in viscosity as the amount of filler added increased. It is also higher than that of Comparative Example 3.
ま几、第２図は、充填剤（フイラーンのｉを２０（ｐｂ
ｗ）に保ち、本実施例及び各比較例３．５の原料の６度
と粘度との関係を見ている。Fig. 2 shows the i of filler (fillerane) of 20 (pb).
w), and the relationship between the 6 degree and viscosity of the raw materials of this example and each comparative example 3.5 is observed.
このグラフにおいても、本実施例は比較例３と比較例５
の中間の値をとっている。In this graph as well, this example shows that Comparative Example 3 and Comparative Example 5
It takes an intermediate value.
ま友、本実施例及び各比較例によシ反応射出成形された
成形品を焼付は塗装し友場合の成形品塗装面の平滑性及
び鮮映性は、本実施例と比較例５（チタン酸カリウム単
結晶繊維含有）が特に高く。The smoothness and sharpness of the coated surfaces of the molded products were evaluated by baking and painting the reaction injection molded products according to this example and comparative examples 5 (titanium). Contains potassium acid single crystal fiber) is particularly high.
次いで、比較例１（加工鉱物繊維含有Ｊ、比較例４（天
然カルシウムメタシリケート含有）の順であり、ガラス
短繊維含有の比較例２，３は平滑性及び鮮映性の点で他
に劣るものであった。This is followed by Comparative Example 1 (J containing processed mineral fibers) and Comparative Example 4 (containing natural calcium metasilicate), and Comparative Examples 2 and 3 containing short glass fibers are inferior to the others in terms of smoothness and sharpness. It was something.
このような結果から、本実施例にあっては、成形品塗装
面の平滑性及び鮮映性が高く、シかも原料粘度が比較的
低く保てるため、ミキシング性。From these results, in this example, the smoothness and sharpness of the coated surface of the molded product are high, and the viscosity of the raw material can be kept relatively low, resulting in excellent mixing properties.
配管内の圧力損失全改善することが可能である。It is possible to completely improve the pressure loss within the piping.
なお、本実施例、比較例３，５並びにフイラ−を含まな
い原料（オリジナル）に依つ几反応射出成形によりシー
ト状成形品を形成し、１２０℃。In addition, a sheet-like molded product was formed by cold reaction injection molding using the present example, Comparative Examples 3 and 5, and a raw material (original) containing no filler, and was heated at 120°C.
１時間のボストキュア後に各物性値を測定し几結果を以
下の表に示す。After 1 hour of boss curing, each physical property value was measured and the results are shown in the table below.
第 ２ 衣
上記第２戒から明らかな工うに、本実施例にあっては、
フィラーを含まないオリジナルに比較して、５０チモジ
ユラスが向上し、また、伸び、線膨張係数が低下したも
のであり、変形しにくい成形品の成形が可能である。さ
らに、本実施例にあっては、比較例３，５と比較して、
密度、５０％モジュラス、引張強さ、伸び、引裂強さ９
勝膨張係数が略同じであり、強直的な遜色は見られなか
った。Second Clothing As is clear from the second precept above, in this example,
Compared to the original containing no filler, the 50 thimodules is improved, and the elongation and linear expansion coefficient are reduced, making it possible to mold a molded product that is difficult to deform. Furthermore, in this example, compared to Comparative Examples 3 and 5,
Density, 50% modulus, tensile strength, elongation, tear strength9
The win expansion coefficients were almost the same, and there was no difference in tonicity.
以上、実施例について説明しｔが、この他に各棟の設計
変更が可能でお９、例えば、上記実施例においては、第
１異に示すような原料を用いたが、反応射出成形に用い
られる他の原料に硫酸カルシウム単結晶繊維を添加して
も勿論よい。The above examples have been explained, but in addition to this, it is possible to change the design of each building.9 For example, in the above examples, raw materials as shown in the first variation were used, Of course, calcium sulfate single crystal fibers may be added to other raw materials.
（発明の効果）
以上の説明で明らかなように、この発明に係る強化反応
射出成形方法にあっては、配合原料の粘度上昇が低いた
め、ミキシング性及び配管内の圧力損失が改善される効
果がある。(Effects of the Invention) As is clear from the above explanation, in the reinforcing reaction injection molding method according to the present invention, since the increase in viscosity of the compounded raw materials is low, the mixing property and the pressure loss in the piping are improved. There is.
ｉ友、物性的にも、硫酸カルシウム単結晶繊維の長さが
比較的短かく、アスペクト比が大きいため、配向性が小
さくなる効果がある。Also, in physical terms, the length of the calcium sulfate single crystal fiber is relatively short and the aspect ratio is large, which has the effect of reducing orientation.
さらに、成形品の塗装外表面に平滑性及び鮮映性ｔ−待
九せる効果がある。Furthermore, it has the effect of improving the smoothness and sharpness of the coated outer surface of the molded product.
第１図は、本発明に係る実施例と比較例３．５の充填剤
の量と粘度の関係を示すグラフ、第２図は、原料温度と
粘度の関係を示すグラフである。
第１図
第２図
＠Ｉ３＋屈醍（’Ｃ）FIG. 1 is a graph showing the relationship between filler amount and viscosity for Examples according to the present invention and Comparative Example 3.5, and FIG. 2 is a graph showing the relationship between raw material temperature and viscosity. Figure 1 Figure 2 @I3+Kudai ('C)
Claims (1)
出成形機で射出成形することを特徴とする強化反応射出
成形方法。A reinforcing reaction injection molding method characterized by adding calcium sulfate single crystal fiber to a molding material and injection molding with a reaction injection molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22019986A JPS6374615A (en) | 1986-09-18 | 1986-09-18 | Reinforced reaction injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22019986A JPS6374615A (en) | 1986-09-18 | 1986-09-18 | Reinforced reaction injection molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6374615A true JPS6374615A (en) | 1988-04-05 |
Family
ID=16747440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22019986A Pending JPS6374615A (en) | 1986-09-18 | 1986-09-18 | Reinforced reaction injection molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6374615A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169214A (en) * | 1988-12-23 | 1990-06-29 | Mitsubishi Motors Corp | Reinforcing reaction injection molding method |
| JPH02182757A (en) * | 1989-01-10 | 1990-07-17 | Mitsubishi Motors Corp | Automotive outer ply |
-
1986
- 1986-09-18 JP JP22019986A patent/JPS6374615A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169214A (en) * | 1988-12-23 | 1990-06-29 | Mitsubishi Motors Corp | Reinforcing reaction injection molding method |
| JPH02182757A (en) * | 1989-01-10 | 1990-07-17 | Mitsubishi Motors Corp | Automotive outer ply |
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