EP1237989A2 - Verfahren zur herstellung eines bauteils und verwendung des bauteils - Google Patents
Verfahren zur herstellung eines bauteils und verwendung des bauteilsInfo
- Publication number
- EP1237989A2 EP1237989A2 EP00993410A EP00993410A EP1237989A2 EP 1237989 A2 EP1237989 A2 EP 1237989A2 EP 00993410 A EP00993410 A EP 00993410A EP 00993410 A EP00993410 A EP 00993410A EP 1237989 A2 EP1237989 A2 EP 1237989A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass
- component
- thermoplastic
- temperature
- particles
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 67
- 239000002245 particle Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 17
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 12
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract 3
- 239000004033 plastic Substances 0.000 claims description 26
- 229920003023 plastic Polymers 0.000 claims description 26
- 229920006258 high performance thermoplastic Polymers 0.000 claims description 6
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 5
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 230000009477 glass transition Effects 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 239000004697 Polyetherimide Substances 0.000 claims description 3
- 229920001601 polyetherimide Polymers 0.000 claims description 3
- 229920006012 semi-aromatic polyamide Polymers 0.000 claims description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 8
- 229920002959 polymer blend Polymers 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000004605 External Lubricant Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000000156 glass melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920001643 poly(ether ketone) Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920006260 polyaryletherketone Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920012287 polyphenylene sulfone Polymers 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- -1 polyphthalate (PPA) Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- the invention relates to a method for producing a component from a glass / plastic mixture.
- the invention further relates to the use of the component produced by the method.
- plastic materials especially based on thermoplastics.
- a filler is added to the plastic material to improve the mechanical and thermal properties.
- thermoplastic used as the thermoplastic.
- the glass is added in the form of glass fibers (glass fiber reinforced plastics).
- the glass fibers are embedded in the plastic.
- Solder bath resistance is increasingly required for the components. This is the only way that the components are suitable for surface mounting (SMT). Therefore, high-temperature thermoplastics are preferably used as the thermoplastic.
- the injection molding technology used to manufacture the components means that the glass fibers are partially printed on the surface or even protrude from it. These glass fibers protruding from the surface can tear off during mechanical operation of the component or
- the liquid-crystalline polymers (LCP) with 30% by weight glass fibers which are preferably used as high-temperature thermoplastic, have a further disadvantage. Due to their LCP-typical layer structure, which is particularly evident in injection molded parts, the components made with LCP have poor tribological properties. When these components are used, the disadvantages mentioned are avoided by using an external lubricant. The disadvantage of an external lubricant is that it is consumed over time and that it in turn can lead to contamination of electrical contacts.
- the aim of the present invention is therefore to provide a method for producing a component from a glass / plastic mixture which has little abrasion.
- the invention provides a method for producing a
- Component made of a glass / plastic mixture in which a mixture of a thermoplastic with a processing temperature Tl and first glass particles with saturated bonds on the surface is assumed. Another property of the first glass particles is that they have a glass transition temperature T2 ⁇ T1. The component is formed at a temperature T3> T1, which causes the first glass particles to melt. The melted first glass particles create second glass particles with saturable bonds on the surface. The saturable bonds on the surface of the second glass particles are saturated by attachment to the thermoplastic.
- the method according to the invention for producing a component from a glass / plastic mixture with glass particles which, for example, have bonds saturated on the surface due to storage in air and which are reacted by the low glass temperature m new particles with saturable bonds on the surface very good adhesion of the glass particles to the plastic matrix achieved.
- exposed glass particles or glass particle ends on the surface of the component are avoided, as a result of which they produce only extremely little abrasion with mechanical friction.
- This reduced abrasion has the further advantage that no special measures have to be taken to keep the air clean, for example to filter out glass fibers or glass fiber particles.
- there are cost savings for machines and tools since wear is drastically reduced compared to the known glass fiber reinforced materials.
- the glass melt differs from the solidified glass also in the nature of its surface. While the active polar end groups of a solidified glass e.g. Saturate with hydroxyl groups of the water that is always present in the ambient air and thus lose their activity, there are still free and active end groups in the glass melt that, when in contact with e.g. Metal or plastic with which the metal and / or plastic surface interact and thereby bring about good wetting and / or adhesion to them.
- active polar end groups of a solidified glass e.g. Saturate with hydroxyl groups of the water that is always present in the ambient air and thus lose their activity
- there are still free and active end groups in the glass melt that, when in contact with e.g. Metal or plastic with which the metal and / or plastic surface interact and thereby bring about good wetting and / or adhesion to them.
- a glass / plastic mixture which contains: - as glass, particles of a low-melting sulfophosphate glass of the following composition, given m mol%:
- a “low-melting point” sulfophosphate glass is understood to be a glass with a low glass temperature T2, in particular a glass with T2 ⁇ 300 ° C.
- the glass temperature is to be understood as the temperature at which the glass softens and thereby becomes flowable.
- a "high-performance thermoplastic is a high-performance plastic (" high-performance polymer *), in this case a high-temperature-resistant plastic ("heat-resistant polymer *," high-temperature resistant polymer ⁇ ).
- the processing temperature Tl of the plastic is at least 300 ° C, since this is the only way to ensure the solder bath resistance of the components made from it.
- the glass temperature T2 is below the processing temperature Tl, which means that the glass is in a flowable state. As a result, the glass / plastic mixture shows very good flow properties for the production of thin-walled components or components with a complicated geometry.
- the glass / plastic mixtures according to the invention have good mechanical and thermal properties and good processing properties, in particular good flowability, even with high filler, i.e. high glass content. They are also distinguished by an excellent chemical resistance, in particular to water, acids and bases, and surprisingly without the addition of stabilizers.
- the glass / plastic mixtures also have excellent abrasion resistance, and material recycling is possible without any problems because the glass component is not shortened, as is the case with glass fiber reinforced mixtures.
- the glass / plastic mixtures according to the invention preferably have a glass with a glass transition temperature of 250 ° C ⁇ T2 ⁇ 280 ° C.
- the mixtures preferably find a sul- fophosphate glass of the following composition use: 4.9% L 2 0, 9.4% Na 2 0, 7.1% K 2 0, 1, 6% CaO, 36.6% ZnO, 20.0% P 2 0 5 and 20.4% S0 3 .
- This glass has a glass temperature T2 of 268 ° C.
- a high-performance thermoplastic is advantageously a polyether ether ketone (PEEK), a polyether imide (PEI), a polyphenylene sulfide (PPS), a partially aromatic polyamide, such as polyphthalate (PPA), or a liquid polymer (LCP).
- PEEK polyether ether ketone
- PEI polyether imide
- PPS polyphenylene sulfide
- PPA polyphthalate
- LCP liquid polymer
- Other high-performance thermoplastics that can be used are polyaryl ether ketones (PAEK) in general, for example polyether ketones (PEK), and polysulfones (PSU), in particular polyether sulfones (PES) and polyphenylene sulfones (PPSU).
- PAEK polyaryl ether ketones
- PSU polysulfones
- PSU polyether sulfones
- PPSU polyphenylene sulfones
- the proportion of the glass component, i.e. of the sulfophosphate glass on the glass / plastic mixture is preferably 15 to 60% by weight.
- the glass content can be up to 80% by weight.
- the mixtures can also contain conventional additives, such as color pigments and stabilizers. Possible applications include sensors, actuators, connectors, electro-optical components and relays.
- the components produced using the method according to the invention can be used particularly advantageously in arrangements in which they interact with other components while exerting mechanical friction.
- it is considered to use the components produced with the method according to the invention in electromechanical switches. This is where the low-abrasion behavior comes into play Wear, as contamination of the electrical contacts can be largely avoided.
- the reduced friction reduces the energy consumption when operating the component and extends the service life of the component.
- the figure shows a component produced with the method according to the invention with a second component in a schematic cross section.
- the figure shows a first component 1 produced using the method according to the invention, which is arranged above a second component 2.
- a force F acts on the first component 1 and presses it against the second component 2.
- the first component 1 moves transversely to the second component 2, as indicated by the double arrow.
- the first component 1 can be produced, for example, by an injection molding process.
- the injection molding process has the advantage that a large number of components of almost any shape can be produced simultaneously in large numbers.
- the invention is not limited to the exemplary embodiment shown, but is defined in its most general form by claim 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Glass Compositions (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19960550 | 1999-12-15 | ||
| DE19960550 | 1999-12-15 | ||
| PCT/DE2000/004430 WO2001044356A2 (de) | 1999-12-15 | 2000-12-13 | Verfahren zur herstellung eines bauteils und verwendung des bauteils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1237989A2 true EP1237989A2 (de) | 2002-09-11 |
Family
ID=7932788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00993410A Withdrawn EP1237989A2 (de) | 1999-12-15 | 2000-12-13 | Verfahren zur herstellung eines bauteils und verwendung des bauteils |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6878765B2 (de) |
| EP (1) | EP1237989A2 (de) |
| JP (1) | JP2003516877A (de) |
| WO (1) | WO2001044356A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005005750B4 (de) * | 2005-02-07 | 2009-06-04 | Infineon Technologies Ag | Verfahren zum Verbinden eines thermoplastischen Materials mit einem duroplastischen Material und Thermoplast-Duroplast-Verbund |
| JP5384023B2 (ja) * | 2007-04-23 | 2014-01-08 | 上野製薬株式会社 | 液晶ポリマー組成物およびそれからなる成形品 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5043369A (en) * | 1988-10-17 | 1991-08-27 | Corning Incorporated | Glass/glass-ceramic-plastic alloy articles |
| JP2856793B2 (ja) * | 1989-11-30 | 1999-02-10 | 麒麟麦酒株式会社 | 複合材料およびその製造法 |
| DE19960548A1 (de) * | 1999-12-15 | 2001-06-21 | Siemens Ag | Glas/Kunststoff-Compounds |
| JP2003516878A (ja) * | 1999-12-15 | 2003-05-20 | シーメンス アクチエンゲゼルシヤフト | 部材及びその製造方法 |
| DE10017136A1 (de) * | 2000-04-06 | 2001-10-11 | Siemens Ag | Maschinenelemente |
| DE10018705A1 (de) * | 2000-04-14 | 2001-10-18 | Siemens Ag | Glas/Kunststoff-Compounds |
-
2000
- 2000-12-13 EP EP00993410A patent/EP1237989A2/de not_active Withdrawn
- 2000-12-13 US US10/149,903 patent/US6878765B2/en not_active Expired - Fee Related
- 2000-12-13 WO PCT/DE2000/004430 patent/WO2001044356A2/de not_active Ceased
- 2000-12-13 JP JP2001544838A patent/JP2003516877A/ja not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0144356A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030113511A1 (en) | 2003-06-19 |
| JP2003516877A (ja) | 2003-05-20 |
| WO2001044356A2 (de) | 2001-06-21 |
| US6878765B2 (en) | 2005-04-12 |
| WO2001044356A3 (de) | 2001-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20020513 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: POLESE, ANGELO Inventor name: GREINER, ROBERT |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE DK FR GB IT LI NL |
|
| 17Q | First examination report despatched |
Effective date: 20080701 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20081112 |