JPS6182164A - Analysis for mixed raw material liquid for r-rim - Google Patents
Analysis for mixed raw material liquid for r-rimInfo
- Publication number
- JPS6182164A JPS6182164A JP20463084A JP20463084A JPS6182164A JP S6182164 A JPS6182164 A JP S6182164A JP 20463084 A JP20463084 A JP 20463084A JP 20463084 A JP20463084 A JP 20463084A JP S6182164 A JPS6182164 A JP S6182164A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- rim
- raw material
- polyol blend
- mixed raw
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 48
- 239000002994 raw material Substances 0.000 title claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 22
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/442—Resins; Plastics
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、Ｒ−ＲＩＭ用混合原料液の分析方法の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a method for analyzing a mixed raw material liquid for R-RIM.
（従来技術）
ＲＲＩＭ （Ｒｅ１ｎｆｏｒｃｅ Ｒｅａｃｔｉｏｎ
Ｉｎ１ｅｃ−Ｌｉｏｎ Ｍｏ１ｄ） Ｉｌｌ形、つマ
リ、補強繊維であるフィラー、架橋剤、触媒を混合して
なるポリオールブレンド液と、イソシアネート成分液と
の反応射出成形においては、とくにポリオールブレンド
液の液管理、とりわけ、変性の決め手となるＯＨ基価と
水分の測定が重要である。(Prior art) RRIM (Re1nforce Reaction)
In1ec-Lion Mo1d) In reaction injection molding of a polyol blend liquid made by mixing a filler, a reinforcing fiber, a crosslinking agent, and a catalyst with an isocyanate component liquid, liquid management of the polyol blend liquid, In particular, it is important to measure the OH group value and water content, which are decisive factors for denaturation.
ところが、ポリオールブレンド液にはフィラーが混入し
ており、このフィラーは、沈降性大のためにサンプリン
グの均一性が乏しくなるとともに、自動水分測定におけ
る電×分解を妨害する。However, fillers are mixed in the polyol blend liquid, and this filler has a high sedimentation property, resulting in poor sampling uniformity and also interfering with electrolysis in automatic moisture measurement.
従って、分析前にポリオールブレンド液カらフィラーを
分離除去する必要がある。Therefore, it is necessary to separate and remove the filler from the polyol blend liquid before analysis.
そこで、この分離除去法としては、遠心分離法や濾過法
があるが、前者はＯＨ基価に寄与する架橋剤や触媒など
も分離するので適正な分析ができず、後者はポリオール
ブレンド液が高粘度であること、フィルターが目詰まり
しやすいことなどから迅速性に乏しいという問題があっ
た。Therefore, there are centrifugation methods and filtration methods to separate and remove this, but the former separates crosslinking agents and catalysts that contribute to the OH value, making it impossible to perform proper analysis, and the latter, when polyol blend liquids have a high There was a problem that it was not quick enough due to its high viscosity and easy clogging of the filter.
（発明の目的）
本発明は上記従来の問題点に鑑みてなされたもので、ポ
リオールブレンド液から架橋剤や触媒を分離することな
（、フィラーのみを迅速に分離除去しで、適正な分析を
行なうようにすることを目的とするものである。(Purpose of the Invention) The present invention has been made in view of the above-mentioned conventional problems. The purpose is to make people do what they do.
（発明の構成）
このため本発明は、Ｒ−ＲＩＭ成形成形子給すべきポリ
オールブレンド液の一部を抜き取り、これを５０〜１２
０℃の加熱状態下で気泡分離処理して、ブレンド液中の
フィラーのみを分離除去し、ついで、この残留液を、Ｏ
Ｈ基価測定手段及び水分測定手段に供するように構成し
たものである。(Structure of the Invention) For this reason, the present invention extracts a part of the polyol blend liquid to be fed into R-RIM molding, and mixes it with 50 to 12
Bubbles separation treatment is performed under heating at 0°C to separate and remove only the filler in the blend liquid, and then this residual liquid is treated with O
It is configured to be used as an H group value measuring means and a moisture measuring means.
（発明の効果）
本発明によれば、ポリオールブレンド液を加熱処理して
粘性を下げつつ気泡分離（浮選分離）処理するようにし
たものであるから、フィラーのみが液表面に浮いて分離
除去され、架橋剤や触媒は分離されないので、この残留
液で適正な分析が行なえるようになる。(Effects of the Invention) According to the present invention, since the polyol blend liquid is heat-treated to lower the viscosity and perform bubble separation (flotation separation), only the filler floats on the liquid surface and is separated and removed. Since the crosslinking agent and catalyst are not separated, this residual liquid can be used for proper analysis.
また、気泡分離プロセスは、Ｒ−ＲＩＭプロセスと測定
プロセスとの間に組込むことができ、ポリオールブレン
ド液管理システムをオンライン化することが可能となる
。Additionally, the bubble separation process can be incorporated between the R-RIM process and the measurement process, allowing the polyol blend liquid management system to be brought online.
（実施例）
第１図に示すように、Ｒ−ＲＩＭプロセスは、イソシア
ネート成分液１とポリオールブレンド液２とをミキシン
グヘッド３で混合してウレタン化反応を起こさせ、この
混合液をＲ−ＲＩＭ成形成形子図示）に射出して製品（
例えば自動車のボンネット、フェンダ−など）を成形す
る。(Example) As shown in FIG. 1, the R-RIM process involves mixing an isocyanate component liquid 1 and a polyol blend liquid 2 with a mixing head 3 to cause a urethanization reaction, and then converting this mixed liquid into an R-RIM process. The product (
For example, molding automobile bonnets, fenders, etc.).
一方、気泡分離プロセスは、下部にガラスフィルター（
５〜１０μ孔）４を、１邪にすり合わせ７ランジ５を取
付けた気泡分離槽６が設けられ、該槽６の中段部分に、
Ｒ−ＲＩＭ成形成形子給すべきポリオールブレンド液２
の一部を配管７で抜き取って供給する。On the other hand, the bubble separation process uses a glass filter (
A bubble separation tank 6 is provided in which the 5 to 10μ holes) 4 are ground together and a 7 lunge 5 is attached, and in the middle part of the tank 6,
Polyol blend liquid 2 to be supplied with R-RIM molding molding material
A part of the liquid is extracted through piping 7 and supplied.
該槽６内に供給されたポリオールブレンドｉｌ！２は、
５０〜１２０℃に加熱されて、粘度が２００ｅｐｓ程度
に下げられる。The polyol blend il! supplied into the tank 6! 2 is
It is heated to 50-120°C to reduce the viscosity to about 200 eps.
加熱温度が５０°Ｃ未満では、ポリオールブレンド液２
の粘度が高く、フィラー９を気泡分離しにくい。また、
加熱温度が１２０℃を越えると、ポリオールブレンド液
２が変質するおそれがある。If the heating temperature is less than 50°C, polyol blend liquid 2
has a high viscosity, making it difficult to separate the filler 9 into bubbles. Also,
If the heating temperature exceeds 120° C., there is a risk that the polyol blend liquid 2 will deteriorate in quality.
従って、寅用上は、インジェクシタン温度が好ましく、
７０〜１００℃が好適である。Therefore, for practical purposes, the injector temperature is preferable;
70-100°C is suitable.
そして、この加熱状態下でガラスフィルター４を通して
槽６内に窒素〃ス（Ｎ２）を送り込み、窒素ガスによる
多数の気泡（０，５ｖ＋＋以下）８を、ポリオールブレ
ンド液２中に懸濁しているフィラー（１０μφ、０．３
ｍｍ＞９に付着させて、気泡８の浮力でフィラー９を液
表面に浮き上がらせ、ポリオールブレンド液２からフィ
ラー９のみを迅速に分離除去する。Under this heated state, nitrogen gas (N2) is sent into the tank 6 through the glass filter 4, and a large number of bubbles (0.5V++ or less) 8 caused by the nitrogen gas are added to the filler suspended in the polyol blend liquid 2. (10μφ, 0.3
mm>9, the filler 9 is floated to the liquid surface by the buoyancy of the bubbles 8, and only the filler 9 is quickly separated and removed from the polyol blend liquid 2.
この気泡分離プロセスにおいては、フィラー９のみが分
離され、架橋剤や触媒は分離されない。In this bubble separation process, only the filler 9 is separated, and the crosslinking agent and catalyst are not separated.
フィラー９の分離のための時間は、第２図に示すように
、約４分で１００％の分離が可能であった。As shown in FIG. 2, 100% separation of filler 9 was possible in about 4 minutes.
次に、測定プロセスは、自動水分測定計１０とＯＨ基価
測定フラスコ１１とが設けられ、該測定フラスコ１１に
、上記槽６の下段部分から残留液２゛を配管１２で抜き
取って計量バルブ１３で計量した後に供給し、公知の方
法で水分とＯＨ基価の測定を行なう。Next, in the measurement process, an automatic moisture meter 10 and an OH group value measuring flask 11 are provided, and the remaining liquid 2' is drawn out from the lower part of the tank 6 through a pipe 12 into the measuring flask 11, and the measuring valve 13 is removed. After weighing the water, the water is supplied, and the water content and OH value are measured using known methods.
上記各プロセスによりフィラー９を分離除去した後の残
留液２゛のＯＨ基価と水分の測定結果を第１表に示す。Table 1 shows the measurement results of the OH group value and water content of the residual liquid 2' after the filler 9 was separated and removed by each of the above processes.
第１表
分離時間が０分では、フィラー９が一部沈降しているの
で、ＯＨ基価は高くでている。Table 1 When the separation time is 0 minutes, the filler 9 has partially settled, so the OH value is high.
分離時間が１〜３分では、フイ２−９が分離されたもの
として分析しているのでＯＨ基価は少な（でている。When the separation time is 1 to 3 minutes, the OH group value is small because the analysis is performed assuming that Fi 2-9 has been separated.
比較のために、遠心分離法によりフィラー９を分離除去
した場合のＯＨ基価と水分の測定結果を第２表に示す。For comparison, Table 2 shows the measurement results of the OH group value and water content when the filler 9 was separated and removed by centrifugation.
］菫Ω旦１員遣１１
分離時間が長くなるほど、ＯＨ基価に寄与ｒる架橋剤や
触媒が著しく分離されることが明らかである。] It is clear that the longer the separation time, the more the crosslinking agent and catalyst that contribute to the OH value are separated.
°第１図はポリオールブレンド液の管理システム図、第
２図は分離時間とフィラー分離率との関係を示すグラフ
である。
１・・・イソシアネート成分液、 ２・・・ポリオー
ルブレンド液、 ２゛・・・残留液、 ６・・・気泡分
離槽、９・・・フィラー、 １０・・・自動水分測定
計、 １１・・・ＯＨ基価測定フラスコ。Figure 1 is a diagram of a polyol blend liquid management system, and Figure 2 is a graph showing the relationship between separation time and filler separation rate. DESCRIPTION OF SYMBOLS 1...Isocyanate component liquid, 2...Polyol blend liquid, 2'...Residual liquid, 6...Bubble separation tank, 9...Filler, 10...Automatic moisture meter, 11...・OH base value measurement flask.
Claims (1)
ルブレンド液と、イソシアネート成分液とを反応射出成
形するＲ−ＲＩＭ成形に用いる前記ポリオールブレンド
液の分析方法であって、Ｒ−ＲＩＭ成形機に供給すべき
前記ポリオールブレンド液の一部を抜き取り、 これを５０〜１２０℃の加熱状態下で気泡分離処理して
、ブレンド液中のフィラーのみを分離除去し、 ついで、この残留液を、ＯＨ基価測定手段及び水分測定
手段に供するようにしたことを特徴とするＲ−ＲＩＭ用
混合原料液の分析方法。(1) A method for analyzing the polyol blend liquid used in R-RIM molding in which a polyol blend liquid formed by mixing a filler, a crosslinking agent, and a catalyst and an isocyanate component liquid are reaction injection molded, the method comprising: an R-RIM molding machine; A part of the polyol blend liquid to be supplied to the polyol blend liquid is extracted and subjected to bubble separation treatment under heating conditions of 50 to 120°C to separate and remove only the filler in the blend liquid. A method for analyzing a mixed raw material liquid for R-RIM, characterized in that the mixed raw material liquid for R-RIM is subjected to a base value measuring means and a moisture measuring means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20463084A JPS6182164A (en) | 1984-09-28 | 1984-09-28 | Analysis for mixed raw material liquid for r-rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20463084A JPS6182164A (en) | 1984-09-28 | 1984-09-28 | Analysis for mixed raw material liquid for r-rim |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6182164A true JPS6182164A (en) | 1986-04-25 |
| JPH0456946B2 JPH0456946B2 (en) | 1992-09-10 |
Family
ID=16493651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20463084A Granted JPS6182164A (en) | 1984-09-28 | 1984-09-28 | Analysis for mixed raw material liquid for r-rim |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6182164A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756004A (en) * | 1980-09-24 | 1982-04-03 | Hitachi Ltd | Bubble separator |
| JPS59142261A (en) * | 1983-02-02 | 1984-08-15 | Hitachi Chem Co Ltd | Room-temperature curable traffic paint |
| JPS59145145A (en) * | 1983-02-09 | 1984-08-20 | 株式会社リコー | Mat film |
-
1984
- 1984-09-28 JP JP20463084A patent/JPS6182164A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756004A (en) * | 1980-09-24 | 1982-04-03 | Hitachi Ltd | Bubble separator |
| JPS59142261A (en) * | 1983-02-02 | 1984-08-15 | Hitachi Chem Co Ltd | Room-temperature curable traffic paint |
| JPS59145145A (en) * | 1983-02-09 | 1984-08-20 | 株式会社リコー | Mat film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0456946B2 (en) | 1992-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030010360A1 (en) | Method for recycling pet components and device for carrying out said method | |
| DE112017000939T5 (en) | Process for reducing or controlling waste water and pollutants from emulsion polymerization resin production | |
| US3772190A (en) | Method for purifying water | |
| EP1813360A3 (en) | Method and installation for the recycling of materials containing bitumen and manufactured bitumen material | |
| DE69915007T2 (en) | Device for decomposing and recovering polyurethane resin | |
| DE69414980T2 (en) | Reactor and process for producing oil from crushed tires | |
| JPS6182164A (en) | Analysis for mixed raw material liquid for r-rim | |
| EP0313830B1 (en) | Process for hardening moulding sand articles | |
| JPH05223779A (en) | Manufacture of gel plate for electrophoresis | |
| US20200061634A1 (en) | Method and system for cleaning sand | |
| EP0209789A2 (en) | Method of separating pollutants from water-solvent mixtures | |
| CN113737319B (en) | Method and device for recycling polymerization liquid in carbon fiber production | |
| DE10209149A1 (en) | Dry plastic granulate manufacture involves addition of compressed gas to extruded plastic strand granulation fluid | |
| US2282037A (en) | Process of producing granular precipitates from colloidal solutions | |
| US2367533A (en) | Process for the preparation of cellulose nitrate | |
| US3235488A (en) | Restoration of fouled particles | |
| US2140511A (en) | Method of treating crude oleo-resins | |
| CA1160221A (en) | Removal of caprolactam and its oligomers from cooling water containing these compounds | |
| US623368A (en) | John nugent harris | |
| US1209539A (en) | Process for treating casein. | |
| US15067A (en) | Cleaning india-ktjbbek | |
| DE10308045B3 (en) | Continuous recovery of tartaric acid from tartrate-containing materials, especially waste products from wine making, includes decantation before microfiltration | |
| CN109433169B (en) | Method and device for improving separating capacity of old calcium type chromatographic resin | |
| DE3336037A1 (en) | Apparatus and method for measuring the gas content of the liquid plastic components of a plant for producing foam plastic | |
| SU1062242A1 (en) | Method for purifying wood gum |