DE760147C - Molded compound for the production of impact-resistant insulating molded bodies, especially for the purposes of high-frequency technology - Google Patents
Molded compound for the production of impact-resistant insulating molded bodies, especially for the purposes of high-frequency technologyInfo
- Publication number
- DE760147C DE760147C DEK156033D DEK0156033D DE760147C DE 760147 C DE760147 C DE 760147C DE K156033 D DEK156033 D DE K156033D DE K0156033 D DEK0156033 D DE K0156033D DE 760147 C DE760147 C DE 760147C
- Authority
- DE
- Germany
- Prior art keywords
- impact
- production
- purposes
- frequency technology
- resistant insulating
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/442—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from aromatic vinyl compounds
Description
Preßmasse für die Herstellung schlagfester Isolierpreßkörper, insbesondere für die Zwecke der Hochfrequenztechnik In der Elektrotechnik, insbesondere ider Hochfrequenztechnik besteht ein großer Bedarf an Stoffen, aus denen sich Platten, Stangen, Rohre und Preßkörper formen lassen, die hohe Isolierfähigkeit bei großer Schlagfestigkeit und au.sre@chende Härte bzw. Formbeständigkeit besitzen.Molding compound for the production of impact-resistant insulating molded bodies, in particular for the purposes of high frequency technology In electrical engineering, especially ider High-frequency technology, there is a great need for materials from which panels, Rods, tubes and pressed bodies can be shaped, the high insulating properties at large Have impact resistance and au.sre@chende hardness or dimensional stability.
Die meisten der üblichen Preßstoffe sind für die Zwecke der Hochfrequenz nicht geeignet, insbesondere weil die dielektrischen Verluste bei ihnen zu groß sind. Manche Stoffe, wie Polyvinylbenzol (Polystyrol), sind in den höheren Polymerisationsstufen spröde, also nicht genügend schlagfest, während das elektrisch hochwertige Polyisobütylen nicht formbeständig ist. Die Mischung der beiden Stoffe bereitet erhebliche Schwierigkeiten, weil sie zuwenig Verwandtschaft haben und daher beim Mischen keine innige mechanische Verbindung miteinander eingehen. Es i,st zwar gelungen, ein Verfahren zu finden, das die Mischung von Polystyrol -und Polyi-so butylen ermöglicht, aber d.as Gemisch wies doch keine in jeder Beziehung befriedigende mechanische Festigkeit Kauf. Im -besonderen war -die Sch.laigfestigkeit der Gemische mir hohem Polystyrolgehalt kaum größer, als die des Polystyrols allein. Die Ursache ist wohl darin zu erblicken, daß die kleinen Polystyrolteilchen oder -körnchen lediglich in Üaschen des Polyisobutylenl:örpers liegen. die so feinfädig sind. daß sie bei Stoß- oder Schlagbeanspruchung zerreißen.Most of the common molding materials are for high frequency purposes not suitable, especially because their dielectric losses are too great are. Some substances, such as polyvinylbenzene (polystyrene), are in the higher polymerisation stages brittle, i.e. not sufficiently impact-resistant, while the electrically high-quality polyisobutylene is not dimensionally stable. The mixture of the two substances causes considerable difficulties, because they have too little relationship and therefore no intimate mechanical when mixing Enter into connection with each other. I have succeeded in finding a method which enables the mixture of polystyrene and poly-butylene, but the mixture had no mechanical strength that was satisfactory in every respect. in the -special was -the impact strength of the mixtures with a high polystyrene content hardly larger than that of polystyrene alone. The cause is probably in this to see that the small polystyrene particles or granules are only in the ashes of the polyisobutylene body. that are so fine-threaded. that they at shock or Tear impact stress.
Die Erfindung zeigt nun einen Weg, das harte Polystyrol und das nicht formbeständige Polyisobutylen zu einem .lisch- oder Verbundkörper zu vereinigen, der von diesen Mängeln frei ist. Gemäß der Erfindung werden Teile des harten Stoffes mit dünnen Schichten des nicht formbeständigen Stoffes überzogen und durch Vermittlung dieser Überzüge miteinander verklebt oder verschweißt. Der so erzeugte Verbundkörper läßt sich dann durch übliche Verfahren «-eiter verarbeiten. Das Enderzeugnis ist von den bisher beobachteten Mängeln frei.The invention now shows a way that hard polystyrene and that not to combine dimensionally stable polyisobutylene into a .lisch or composite body, which is free from these defects. According to the invention, parts of the hard substance covered with thin layers of the non-dimensionally stable material and through mediation these coatings are glued or welded together. The composite body produced in this way can then be processed further using the usual methods. The end product is free of the defects observed so far.
Bei der Durchführung des Verfahrens kann man von Polysty rolkörnern oder Platten ausgehen. Im ersten Fall behandelt man Körner möglichst gleicher Größe für einige Zeit mit einer Lösung von Polyisobutclen in üblichen Lösungsmitteln, z. B. Benzin. Die Lösung wird dann abgegossen. der Rest des Lösungsmittels, zweckmäßig im Vakuum. ab-gedampft. Die einzelnen Körnchen des Polystyrol sind jetzt rings mit einem feinen Polyisobtityleniiberzug versehen, der sehr fest haftet, zumal das Lösungsmittel die Oberfläche der Körnchen aus Polystyrol etwas angegriffen hat. Nunmehr kann -die Verarbeitung zu Preßkörpern erfolgen, auch die @"-erarbeitung auf der Strangpresse oder im Spritzgullcerfahren.When carrying out the process, one can use polystyrene grains or run out of plates. In the first case, grains of the same size as possible are treated for some time with a solution of polyisobutylene in common solvents, z. B. Gasoline. The solution is then poured off. the remainder of the solvent, appropriate in a vacuum. off-steamed. The individual granules of the polystyrene are now all around provided with a fine polyisobtitylene coating, which adheres very firmly, especially as the solvent has slightly attacked the surface of the polystyrene granules. Now can -the Processing to compacts take place, also the @ "- processing on the extrusion press or in injection molding.
Bei :der Verarbeitung von Polystyrolplatten kann man das dünne Häutchen aus Polvisobuiylen ebenfalls durch Einwirkenlassen einer Lösung auf die Oberfläche von Polystyrolfolien erzeugen. oder man kann abwechselnd Polystyrolfolien und Polyisobutylenfolien aufeinander schichten und den Stapel unter Anwendung von Druck und Wärme verschweißen. Naturgemäß müssen insbesondere die Polyisobutylenfolien dünn genug sein, damit das Enderzeugnis auch ein wesentlich deichmäßiges Gefüge aufweist.When: the processing of polystyrene sheets you can see the thin skin from Polvisobuiylen also by allowing a solution to act on the surface from polystyrene foils. or alternating polystyrene films and polyisobutylene films Layer one on top of the other and weld the stack using pressure and heat. Of course, the polyisobutylene films in particular must be thin enough so that the The end product also has a structure that is essentially dike-like.
Das \-erfahren ist auch zur Erzeu@1ung von Mischkörpern aus anderen Dielektrika ariwendbar. von denen der eine hart lizw. spröde. der andere nicht formbeständig ist. und di-.# sich sonst schwer mischen lassen.The \ experience is also used to create mixed bodies from others Dielectrics can be used. one of which hard lizw. brittle. the other not dimensionally stable is. and di -. # are otherwise difficult to mix.
Das Maß derFormbeständigkeit.Härte und Elastizität des Erzeugnisses richtet sich nach den Anteilmengen der Bestandteile. je ineh r Polcstyrol (durch Wahl gri111erer Körner oder dickerer Folien) es enthält. um so größer ist die Härte. In jedem Fall aber sichern die dünnen, haftenden Hüllen aus dem nachgiebigen Pol_visobutylen den Zusammenhang besser. als es sich bislang erreichen ließ.The degree of dimensional stability, hardness and elasticity of the product depends on the proportions of the components. each in polystyrene (through Choice of larger grains or thicker foils) it contains. the greater the hardness. In any case, however, the thin, adhesive sheaths made from the flexible Pol_visobutylene secure the context better. than it has been possible to achieve so far.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK156033D DE760147C (en) | 1939-11-18 | 1939-11-18 | Molded compound for the production of impact-resistant insulating molded bodies, especially for the purposes of high-frequency technology |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK156033D DE760147C (en) | 1939-11-18 | 1939-11-18 | Molded compound for the production of impact-resistant insulating molded bodies, especially for the purposes of high-frequency technology |
Publications (1)
Publication Number | Publication Date |
---|---|
DE760147C true DE760147C (en) | 1953-01-19 |
Family
ID=7253405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK156033D Expired DE760147C (en) | 1939-11-18 | 1939-11-18 | Molded compound for the production of impact-resistant insulating molded bodies, especially for the purposes of high-frequency technology |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE760147C (en) |
-
1939
- 1939-11-18 DE DEK156033D patent/DE760147C/en not_active Expired
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