WO2008019515A1 - Faserverstärktes thermoplastisches halbzeug - Google Patents
Faserverstärktes thermoplastisches halbzeug Download PDFInfo
- Publication number
- WO2008019515A1 WO2008019515A1 PCT/CH2007/000393 CH2007000393W WO2008019515A1 WO 2008019515 A1 WO2008019515 A1 WO 2008019515A1 CH 2007000393 W CH2007000393 W CH 2007000393W WO 2008019515 A1 WO2008019515 A1 WO 2008019515A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyamide
- din
- polypropylene
- mfi
- weight
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Definitions
- the invention relates to a fiber-reinforced, thermoplastically deformable, flat semi-finished product which contains a mixture of polypropylene (hereinafter: PP) with a polyamide (hereinafter PA).
- PP polypropylene
- PA polyamide
- GMPP semi-finished products are increasingly used for the production of components, in particular for motor vehicle parts. They are produced on a large-scale technical scale by combining glass mats and PP melt paths and pressing in a double belt press at pressures above 1 bar. Such "generally” 0.5 to 3 mm thick "plastic sheets” are characterized by high toughness and strength, however, for some applications, the properties of GMPP are not sufficiently good., For example, molded parts made from GMPP by hot pressing, a low service temperature resistance, they can not be bonded to metals without additional primer and painted with conventional emulsion paints and their surface is in many cases unsatisfactory.
- the invention accordingly provides a fiber-reinforced, thermoplastically deformable, flat semi-finished product comprising:
- thermoplastic material 80 to 40 wt.% Of a thermoplastic material, wherein the thermoplastic material is a mixture of:
- DE-A 2 145 408 describes a glass-fiber-reinforced plastic preparation of from 1 to 99% by weight of a polyolefin grafted with maleic anhydride,
- the reinforcing materials may include glass fibers, glass rovings, chopped fiberglass strands, milled glass fibers, glass powders, glass beads and textile products made of glass, such as tapes or cloths. In the examples, chopped glass fibers and glass powder are used. Needled glass fiber mats are not mentioned, there is also no information about the melt indices of the polymers.
- GB-A 2 225 584 describes mixtures of a polyamide, polypropylene and a polypropylene grafted with maleic anhydride.
- the glass fibers are Thomasfasem a length of 1.5 to 100 mm, but not needled glass fiber mats.
- the mixtures are processed by injection molding.
- the mixture according to the invention contains:
- 10 to 80 preferably 50 to 20 wt.% Of a polyamide having an MFI according to DIN 53735 (26O 0 C, 2.16 kp) from 50 to 200, preferably from 100 to 150 g / 10 min, and 2 to 10, preferably 3 to 8% by weight of a polypropylene grafted with maleic anhydride as compatibilizer.
- Preferred polyamide is polyamide 6, but other polyamides such as polyamide 6,6, polyamide 12 and polyamide 6,10 can be used.
- polyamide 6,6 polyamide 6,6, polyamide 12 and polyamide 6,10 can be used.
- polyamide 6,10 polyamide 6,10
- the compatibilizer is known per se and described in detail in the cited references. It preferably contains 0.1 to 10, in particular 0.5 to 5 wt.% Grafted maleic anhydride.
- the viscosity of the two polymers at the processing temperature is of the same order of magnitude.
- the melt indices at the processing temperature should not differ from one another by more than 15, in particular by more than 10%. Since in practice the standardized melt indices, eg MFI according to DIN 53735, are specified for PP at a temperature of 23O 0 C, but for PA at a higher temperature of 260 0 C, it is for the effective alignment of the melt indices for a given common processing temperature entendzes- sig, a PP component having a MFI according to DIN 53735 (230 ° C, 16.2 kp) to select, which is about 10 to 20% lower than the MFI according to DIN 53735 (260 0 C, 2.16 kp) of the PA Component.
- the alignment of the melt indices is usually carried out by using from the outset polymers of virtually the same viscosity.
- the mixture is added to a peroxide, which causes a viscosity reduction at the melting temperature of the polypropylene
- the type and amount of peroxide can be easily determined by preliminary experiments.
- the semifinished product according to the invention contains from 20 to 60, preferably from 25 to 50,% by weight of glass fibers. These are in the form of needled mats.
- the fibers are undirected and are on the weight average preferably 10 to 100, in particular 20 to 50 mm long. It is also possible to use combinations of glass fiber fabric or layers with layers of mats of non-directional fibers in the manufacture of the semifinished product. In any case, the fibers are in front of the Needling impregnated with the polymer melt, wherein the fiber mats solidified for better handling and the fibers are shortened something.
- the polymers are melted together in an extruder, or in a main extruder, the polyamide is melted and by a side extruder, the polypropylene is added together with the compatibilizer and optionally the peroxide.
- the melt temperature in the mixing extruder is in the case of polyamide 6 preferably 225 to 275 ° C, with polyamide 6.6 240 to 280 0 C.
- a melt web preferably with a basis weight of 400 to 2000 g / m 2 is squeezed out.
- One or more such melt webs are hot pressed together in a double belt press with one or more glass fiber mats with a weight per unit area of preferably 300 to 1300 g / m 2 and then cooled.
- a web of glass fiber mats is pressed between two melt paths to semi-finished product. To make thicker semi-finished products, three melt paths and two glass fiber mats are pressed together.
- the semi-finished product can be pressed by thermoplastic forming into finished parts which are used as automotive parts, e.g. can be used as Automaticradmulden and shock-loaded underbody structures near the exhaust line and painted side sills.
- the semifinished product according to the invention has the advantage over GMPP that it can be compressed to thinner components with the same or better mechanical properties.
- example 1
- the pressed melt web with a basis weight of 1200 g / m 2 is introduced between two glass fiber mats with a basis weight of 800 g / m 2 (weight ratio polymer to glass 70:30) in a double belt press and only in a heating zone at 27O 0 C and then in a cooling zone at 15 0 C pressed.
- the resulting semi-finished product with a width of 105 cm and a thickness of 0.5 cm is cut into sheets.
- Example 1 was repeated, using a polypropylene granules having an MFI according to DIN 53735 (23O 0 C, 2.16 kp) of 100 g / 10 min as the polypropylene component. Compared to the first example, a more homogeneous mixing of the components took place in the extruder, which favors a more uniform heating of the GMT blanks, thus a more consistent processing to good components.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007001779T DE112007001779A5 (de) | 2006-08-14 | 2007-08-10 | Faserverstärktes thermoplastisches Halbzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1306/06 | 2006-08-14 | ||
CH13062006 | 2006-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008019515A1 true WO2008019515A1 (de) | 2008-02-21 |
Family
ID=38621169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2007/000393 WO2008019515A1 (de) | 2006-08-14 | 2007-08-10 | Faserverstärktes thermoplastisches halbzeug |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112007001779A5 (de) |
WO (1) | WO2008019515A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109776952A (zh) * | 2018-12-17 | 2019-05-21 | 会通新材料股份有限公司 | 一种玻璃纤维增强聚丙烯/尼龙6合金材料及其制备方法 |
CN112724663A (zh) * | 2020-12-29 | 2021-04-30 | 上海普利特复合材料股份有限公司 | 一种高刚性、低浮纤长玻纤增强聚酰胺/聚丙烯合金材料及其制备方法 |
US11407894B2 (en) | 2018-12-18 | 2022-08-09 | Quinlyte Holding B.V. | Polymer compositions having unique differential scanning calorimetry (DSC) and DSC crysatillization exotherm (Tpc) characteristics, method for preparing said composition, article comprising said composition and method preparing said articles |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1345747A (en) * | 1970-09-12 | 1974-02-06 | Mitsubishi Rayon Co | Glass reinforced thermoplastic resin composition |
JPS6487657A (en) * | 1987-09-28 | 1989-03-31 | Showa Denko Kk | Glass fiber-reinforced polyamide resin composition |
JPH0952989A (ja) * | 1995-08-10 | 1997-02-25 | Kishimoto Sangyo Kk | ガラス繊維強化ポリプロピレン樹脂組成物及び成形体 |
US20050222327A1 (en) * | 2004-04-01 | 2005-10-06 | Botros Maged G | Multi-phase polypropylene compositions |
US20060025526A1 (en) * | 2004-07-27 | 2006-02-02 | Botros Maged G | Functionalized propylene polymer compositions and composites containing same |
-
2007
- 2007-08-10 WO PCT/CH2007/000393 patent/WO2008019515A1/de active Application Filing
- 2007-08-10 DE DE112007001779T patent/DE112007001779A5/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1345747A (en) * | 1970-09-12 | 1974-02-06 | Mitsubishi Rayon Co | Glass reinforced thermoplastic resin composition |
JPS6487657A (en) * | 1987-09-28 | 1989-03-31 | Showa Denko Kk | Glass fiber-reinforced polyamide resin composition |
JPH0952989A (ja) * | 1995-08-10 | 1997-02-25 | Kishimoto Sangyo Kk | ガラス繊維強化ポリプロピレン樹脂組成物及び成形体 |
US20050222327A1 (en) * | 2004-04-01 | 2005-10-06 | Botros Maged G | Multi-phase polypropylene compositions |
US20060025526A1 (en) * | 2004-07-27 | 2006-02-02 | Botros Maged G | Functionalized propylene polymer compositions and composites containing same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109776952A (zh) * | 2018-12-17 | 2019-05-21 | 会通新材料股份有限公司 | 一种玻璃纤维增强聚丙烯/尼龙6合金材料及其制备方法 |
US11407894B2 (en) | 2018-12-18 | 2022-08-09 | Quinlyte Holding B.V. | Polymer compositions having unique differential scanning calorimetry (DSC) and DSC crysatillization exotherm (Tpc) characteristics, method for preparing said composition, article comprising said composition and method preparing said articles |
CN112724663A (zh) * | 2020-12-29 | 2021-04-30 | 上海普利特复合材料股份有限公司 | 一种高刚性、低浮纤长玻纤增强聚酰胺/聚丙烯合金材料及其制备方法 |
CN112724663B (zh) * | 2020-12-29 | 2023-04-07 | 上海普利特复合材料股份有限公司 | 一种高刚性、低浮纤长玻纤增强聚酰胺/聚丙烯合金材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE112007001779A5 (de) | 2009-11-05 |
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