JPS6036139A - Manufacture of fiber reinforced molding - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Molded article 11 made of fiber-reinforced thermoplastic! , usually by mixing miscellaneous materials into the thermoplastic granules, i.e.
It is produced by shaping a mixture of thermoplastic granules or powder and fibers by heating, for example in an extruder or injection molding machine.

Depending on these methods, it is not possible to mix long fibers such as 5sui of silk cloth into the thermoplastic matrix;
And because of the problems associated with fiber incorporation and processing, these methods often do not allow the use of more than 30% by weight of reinforcing fibers, such as glass fibers.

If the 1i1iTh consisting of reinforcing fibers is impregnated with a thermoplastic material, a hard semi-finished product is obtained which can be molded hot in a press to give molded parts with good properties. However, even with such methods, problems with the uniformity required for impregnation limit the amount of reinforcing fabric that can be incorporated. Hard semi-finished products are often difficult to handle and process due to their rigidity.

By dusting thermoplastic powder onto a woven fabric, a soft semi-finished product is obtained that can be easily introduced into molds, etc., but the viscosity and fluidity of the thermoplastic melt thereby Either the thermoplastic cannot flow around the individual flIIIt in the silk fabric, i.e. it cannot surround the fibers, or it is only incomplete; This results in molded parts with insufficient mechanical properties.

In accordance with conventional methods, a strand of fiber (11 spun) is impregnated with a reactive resin in a relatively fluid state and then C-drawn in a heated calibrated drawer, thereby avoiding curing at the same time as shaping. Contains reinforcing fibers of
It is possible to obtain a glass woven ILF reinforced profile.

However, this type of profiles are hard plastics, and even though they are crosslinked, they cannot be subsequently heated and formed. This method is limited to reactive resins and is unsuitable for use with preprocessed high molecular weight thermoplastic composite materials. However, it is often necessary to produce profiles with high reinforcement mH@Wl from hot single molds.

The present invention overcomes the above problems and surprisingly has a reinforcing fiber (e.g., glass) content of up to and exceeding 70% by weight that is substantially void-free and further Thermoplastics that can contain fibers of any length and whose fibers are completely surrounded by a homogeneous matrix thermoplastic material, thereby having good mechanical properties Molded products can be provided.

The method of the invention for the production of fiber-reinforced moldings from thermoplastics involves the use of a flexible, textile fiber semi-finished product consisting of a mixture of at least two types of III fibers, in which a small amount of fibers is present. (In both cases, 1el is meltable and acts as a thermoplastic, and at least one type of fiber remains intact even when the former type of fiber is melted when the textile semi-finished product is thermoformed for shaping.) dripping

In a particular embodiment, the lag-reinforced profiles and moldings are made into flexible, textile fiber semi-finished products fp I et al. Q? Preferably, it is manufactured continuously.

In this case, the detailed description of the present invention does not include J3 (although the term ``fiber pad'' should be understood to indicate an endless monofilament or a monofilament of limited length). The term ``yarn'' can be understood to refer to the combination of many fibers to give a multifilament yarn. It should be understood that there is something to be shown.

The method of the present invention for producing a reinforced molded article from 1'l of thermoplastic material by thermoforming of a semi-finished product comprises forming a semi-finished product from a mixture of at least two scale (substantially flat) fibers. At least one of the braided cords is melted under thermoforming conditions to form a thermoplastic material, and at least one of the other fibers of the above-mentioned type is used. It is characterized by its ability to act as a reinforcing mM in RIIFJ products when kept intact under conditions of

In one particular embodiment, these flexible, textile fiber composites are fiber bundles or strands of fibers of the type described above.

The term “thermoplastic” or “thermoplastic material” means
It is to be understood that it refers to any material that can be processed thermoplastically, either reversibly or even intermediately.

Materials of this type are, for example, metals and their alloys, glasses and especially organic materials.

The organic material is primarily a known thermoplastic resin or thermoplastic resin, a thermoplastic resin mixture, or a combination thereof. These may be thermoplastic reaction systems which, upon heating, pass into a thermoplastic phase and then irreversibly lose their thermoplasticity with increasing molecular weight or by crosslinking. The following are examples of many organic materials: aliphatic, aromatic, araliphatic, cyclic and heterocyclic polymers, such as vinyl polymers, and in some cases oligomers, such as polyolefins. , polysulfone esters, polyvinyl ethers, polyacrylic and methacrylic compounds, polyvinyl aromatic compounds, polyvinyl halide compounds and various copolymers,) Boriebulene, polypropylene,
Polybutene, polybenzone, various polyvinyl chlorides, polymethacrylic r11 methyl, various poly(meth)acrylonyl-I-lyl, various polystyrenes and e.g. ABS
Modifications or mixtures thereof, polyadditions, synthesis, etc.
Widened or cyclized polymers, such as polyamides, polyurethanes, polyureas, polyimides, polynisdels, polyhydantoins, polyphenylene oxides, polyphenylene sulfides, polysulfones, poly1-thyl, polycarbonates and mixed forms thereof, such as nylon, perξ
mixtures and combinations with other polymers or polymer precursors, such as polyethylene chloride, polyj-dylene 7 phthalate, bisphenol polycarbonate, etc., or can be considered as precursors to more highly polymerized structures. As intermediate thermoplastic materials, phenolic resin precursors, furan resin precursors, melamine resins, epoxy compounds, compounds with polymerizable double bonds or double bonds capable of addition, polyamide precursors, relatively high molecular weights polyisocyanate
1 to or a combination of reactive polymers and crosslinking agents active at elevated temperatures, such as OH, NH or COO
A combination of a polymer containing an H group and a crosslinking agent containing a methylol group.

The term ``flexible textile fiber composite'' refers to, for example,
Furthermore, from fiber strands, fiber threads, sewn fabrics, ML-laminated fabrics, woven fabrics, woven fabrics, l1M or yarn, which are flexible and can therefore be wound up or bent without cutting. This is to be understood as meaning a single piece, and it is preferred that this type of configuration exhibits the nature of normal flexible textiles.

The textile IIH flexible composite must consist of a mixture of at least two types of fibers that are substantially parallel.

In this case, according to the invention, # of two threads is used. u#l?
y.

It is possible to combine the fibers of type 21 in the glue layer 1 by using the core-sheath fibers.In the present invention, the core-sheath fabric is used in the case of the 9th weave IIt. It is preferable to use C as a fiber exterior. however,
In general, at least 'b2f! The II fibers, consisting of Class I weave 1, are included as separate elements in the mixture in textile form.

In this case, it is possible to process the table scales in the m-miscellaneous mixture together, and in that case, assume that it is a homogeneous mixture of various m-miscellaneous objects that are parallel to each other as much as possible. It is desirable to combine yarns of various types of fibers in the form of a weaving machine, such as for example yarns or endless fibers, into as uniform a combination as possible, e.g. It is also possible to add warp and weft threads in the weave 11.

From a analytic point of view, the best possible mixture of the largest number of different parallel fibers, for endless fibers or long fibers, is the same as that for endless fibers or long fibers, when the millimeter of the scale is simultaneously applied to a conventional paper scale. By introducing them, they can be easily obtained by tying them together, and also for adhesive fibers, or for sandwich structures! ! In construction, e.g. by a static flocculation step and optionally a subsequent controlled uniform folding of the fiber lyle yarn, e.g. using optionally heated rollers. (Also, various fibers can be mixed.

Combinations of fibers with different melting points to give thermoplastically shaped vine semi-finished products can be used, for example, for curing of webs with mixed thermoplastic melt-bonded fibers or for strands of fibers consisting of non-fusible fibers. It is already known to cure by using thermoplastic adhesive fibers introduced perpendicularly thereto at regular intervals.

Generally, in this case, the purpose is not to manufacture the at-thickness reinforced thermoplastic molded product itself, but rather to use a spun fiber structure that must be laminated with or provided with a reactive resin or thermoplastic plate in advance. It has to do with things. Resin is added to produce a molded product, and the warp is made of 1fi type woven fabric, the weft is made of other types of fibers, and both types of 41 type fabric are used.
Thermoplastic pressing of silk fabrics with melting points as low as 11 ff (both differing by 20 °C), or thermoplastic processing of webs made of fiber mixtures of this type, also
Proposed. The present invention provides these different C1-enhanced mu
It is preferable to use a mixture of various parallel fibers, since this minimizes the flow path required to cover the thermoplastic material and form the thermoplastic material at the same time.

Although it is not absolutely necessary to impregnate or test the textile semi-finished products according to the invention, such may be considered.

In this respect, the invention relates to the following specific case for a substantially parallel fiber mixture in the textile fiber semi-finished product according to the invention.

These cases apply to woven fabrics, silk fabrics or mixed forms and modifications thereof, and for purposes of explanation they relate to the t'3c cross-section in textile semi-finished textile products. For simplicity, only two types of fibers will be considered, but combinations of several types of fibers are also possible.

r - Fibers that act as thermoplastics (illustrated with white circles) ■ -
Acting as a reinforcing material <m-thread (illustrated with black circles) T V T-core reinforcement> fiber N/exterior (thermoplastic) woven fabric 11t (illustrated with large circles) In FIG. 1, the structure a of the present invention 9 to 9 are generally conceptually represented as ~e, and are assumed to be silk cloth or knitted cloth.

3, T/V 1>, ``'J'■ Choding/VVVVV As fiber or staple thread C, TV/ d, TTTTT VVVVV/ In each case as fiber or staple thread e, -r
vv'rv'rrvv-r, '[or as stable yarn r, 1-V/2 filament thick; multifilament 1-wipe 0, T VT core/sheath #! liN The present invention particularly relates to silk fabrics, but silk fabrics also relate to mixed forms thereof. At least two kinds of fibers are present in the mixture.

In addition to the arrangement shown, combinations thereof can also be drawn, such as, for example, two-men one- or core/sheath fiber yarns or sufu-sol yarns.

In semi-finished products present in the form of fiber strands, configurations d and e are of particular interest.

It goes without saying that combinations of the illustrated arrangements can also be included, ie more than 1 fl fiber or 1 fiber bundle (yarn) per type of fiber in Examples a to g.

Spin #8! The i-fiber morphology consists of at least two types of tvttt, at least one of which acts as a thermoplastic and at least one other must remain intact. The former type of fibers is transformed into the surrounding matrix during the hot pressing stage. These fibers may be glued or not glued. Although in most cases glued fibers are used, in each case it is advantageous to use the most suitable glue for the type of thermoplastic used with the non-melting 11iH. The types of such glues, for example for glass fibers, are well known to those skilled in the art.

The width ratio of thermoplastic type fibers and other types of PA#[t can be determined by using textiles that serve as semi-finished products, for example to achieve a specific reinforcing effect in specific geometric areas of the desired molding. Variations can be made within the scope of the fiber morphology; however, the textile fiber morphology is generally structured in a uniform manner as far as fiber composition is concerned. Needless to say, the amorphous nature of the fiber form can be influenced by weaving or knitting it into a textile fiber form with a particular configuration or shape. ! ! specific requirements
It can be adapted to the Q article fl.

The weight ratio of both types of fibers can be selected as desired. Regarding the strength of the molded product, the best result is 1% if the heat LiJ is not formed plastically during the hot pressing stage.
21 polymer is polymer 1 and 10 to 90%, preferably m, 1 Tlr
2 (1 to 85%, especially achieved when the weight is 60 to 80%).

The thermoplastic fiber type is the above-mentioned thermal nJ plastic (Q 4,1 fi
It consists of l. In this case, one of the thermoplastic miscellaneous parts
It is essential that the i'th Y and length are approximately the same as the diameter and length of the fiber portion that does not act as a thermoplastic.
I don't have one, but I'm right-handed. Thermoplastic fibers with a diameter several times, 10 to 50 times, that of the non-thermoplastic fibers can be used, and vice versa.

II that does not act as a thermoplastic! I-string is to be understood as designating m-fibers that do not melt or thermoplastically form under hot pressing conditions suitable for thermoplastic fibers, ie fibers that remain unchanged. Fibers of this type, such as glass fibers, can behave like thermoplastics at relatively high temperatures. In this case, in addition to glass 41M, fibers made of various metals and metal alloys such as steel, brass, copper, and aluminum, fibers made of widely different metal nitrides or carbides, metal oxide fibers, For example, △1 oxide fiber, silicate #I, such as kaolin fiber, Ca silicate
Dark blue, sulfur mca fiber, wide? Fibers made of different glasses,
Woven fabrics made of organic polymers, such as the trade name Traylon,
Polyacrylonitrile fibers, polyester woven strings, polyamide fibers, polyimide weaves, such as those known as Trevira, Parcon, Kevlar, etc.
Other inorganic and organic fibers are also suitable.

The flexible spindles 11 constructed according to the invention, many of which are in tubular form, are particularly easy to handle. can be used, or in some cases (is a manufacturing process for textile fiber forms).
One process can be specifically constructed and ζ specifically adapted to the requirements of the molded article. In this respect, it is also possible to process them continuously, either from rolls or possibly directly at the point of manufacture.

Textile fiber forms that serve as semi-finished products are effectively dried well before processing. Processing can be carried out in a circular mold (or by thermoforming under reduced pressure or under protective gas) according to conventional methods known to those skilled in the art.

The molding pressure can vary from 0.5 bar to more than 200 bar, depending on the requirements of the fiber material, the composition of the textile fiber composite and the shape of the molded article, together with the molding temperature ranging from 80°C to over 380°C. Avoid adapting. Try this beforehand! 51rj can be determined by C. The shaping process can be carried out in multiple pressure and/or concentration stages, for example in a first stage to pre-strengthen an initial flexible semi-finished product and then to carry out the final shape.

Partial ablation shaping is also possible for the modification of the initial semi-finished product, for example partial hardening or welding of specific parts of the semi-finished product.

A particular advantage of the invention is that even thermoplastic materials, which under normal processing conditions give rise to particularly high viscosity melts and therefore have poor flow properties, can be used to produce fiber-reinforced moldings. This means that it can be processed into In a pre-processed semi-finished product, such as a knitted yarn, the meat fibers are spatially close to each other, so that the thermoplastic component does not cross in the Rn processing step GJ to the final product. There is only a very short channel C-.

According to the present invention, it is also very easy to produce molded articles from composite reinforced 7N navy blue, such as glass/carbon X glass/aramid etc. The simultaneous incorporation of /r:A element or Karas/Aramid is extremely problematic, if not unnecessary, for injection molding in amounts exceeding 20%.

When using a bundle of textile-processed flexible woven fabrics, the IJ may be applied to different shapes or temperatures, or p+horns, or shapes or heated '/IM baths in different shapes or temperatures, or in the speed or direction of stretching. By stretching (continuously or continuously) with the H,3'6 shape through a heated nozzle or nozzle cascade, it is possible to produce shaped articles or molded articles. Depending on the case, heating in a protective gas can be carried out on a pair of rollers or on a roller mechanism, or in the gap, or, for example, by applying a stretching action to a strand of fibers, or by winding a strand. At the same time, or even shaping without direct contact with the mold surface, such as by heating the strand before or after winding, can be used. Heating can be by thermal conduction or radiation, radio frequency, ultrasound, microwave or other methods.

Anti-adhesive coatings can also be used on the molding area, such as fluoropolymers, waxes, fats, silicone oils, etc.

The hot pressing of the weave bundle is preferably carried out continuously between heatable profile rollers or using heatable nozzles or nozzle areas.
For example, round bar, rectangle, triangle, 1-shape, U-shape, 7
It is particularly easy to produce endless profiles, such as rods with a cross-section of a 0-shape or a 0-shape, for example a tube. In particular, unidirectional, weave-reinforced convex moldable sand shapes can be produced in this way, which due to the high content of reinforcing weave that can be achieved by this method. In addition, it has a tensile strength that exceeds that in the longitudinal direction.

The semi-finished product according to the invention is mainly composed of C as parallel as possible, I
Unless it is a bundle or group of INs, there is no 'J').

For example, by winding or tying a bundle of #li miscellaneous (thus, wefting or twisting a bundle of fibers) and fixing it with a weld or gluing, a non-1'ljI!
Instead of a bundle of 641 strips, you can also fix this fiber (i) by miscellaneous
%, thin ribbons of fibers may also be used. It is possible to do C., Enso G;i
, partial or continuous, more or less loose bonding using a very wide variety of adhesives.
It is possible to fix it in the east direction. However, it is often also possible to operate without fixing aids of this type, and the natural parallel position of the fibers in the unidirectionally mentioned fiber groups is often sufficient.

Strands of different types of fibers may optionally be combined in a specific form to give rise to a semi-finished product, whereby for example, in some areas, glass 49
In other areas, it is possible to obtain a profile reinforced with carbon #aN.

Flexible semi-finished products are at least 2f! It consists of fibers of class I (
I have to be there.

In this case, as an exception, 2 wood thread fibers or core-outer device n
It is possible according to the invention to combine two IQ navy blues in one fiber by the use of a heat iiJ ff! It may be taken into account that it is preferable to arrange the object as a dark blue exterior. It is common for the fibers present as at least 2PIi to be kept as separate elements in the mixture in the 1fi roving.

In this case, it is possible to process the different types together, preferably intact, in a mixture iil /Ifi (
- As much as possible a homogeneous mixture of different types of parallel supports 1 is desirable. It is also possible to process the yarn as a homogeneous mixture of fibers of the same type, such as staple fibers or endless braids, in the form of spun fibers. For example, it is possible to consider the use of 4+5 warps or wefts of different IP types of fibers in one wooden cloth ribbon.

From a general point of view, the best possible mixture of the largest number of fibers of different types is the best possible mixture of the maximum number of fibers of different types, as is known to those skilled in the field, for long fibers and long fibers. and the different types of tLlf are the same +1. 'i, +
It is possible to introduce it into the textile processing process by combining them, and for #1 shortcuts, or in some cases, sandwich structures may be converted into ribbons. In article !16, different types of fibers are prepared, for example, by an electrostatic floccolation process, optionally with subsequent controlled and uniform folding of the fiber web on heated rollers. C. Just mix.

In the following examples, parts always refer to parts by m and percentages refer to percentages by weight, unless indicated otherwise.

The following embodiments are carried out using glass fiber N (about 25 μmφ) and polyamide. Polyamide is made of par 1” glue fiber (approximately 2
0 μ silk φ) and is representative of thermoplastics. Carbon or polyaramid or metal p1 fibers may be used instead of glass fibers, and aromatic polycarbonate, polystyrene, polypropylene or polyethylene terephthalate may be used instead of Per0.

Example 1 One type of yarn (
A roving is produced and wound in slightly twisted and untwisted forms.

A linen-based woven fabric with a weight of approximately 1100g is produced from untwisted material, and approximately 100g is made from slightly twisted material.
Manufactures 4 products (m pipes) that are 1i of +ioog's ll12 weight.

Both forms are completely flexible and can be rolled and cut, or sewn and welded. The "linen fabric" was dried by the use of silica gel and rolled in a hot platen press at -60 kg/m2 at 30 DEG C. to a void-free thickness of 0.
A plate portion of 45+1lIll can be easily obtained. This tentative value is approximately 36 k when measured in the direction of the fiber.
We accept high elastic modulus (extension test) of N/mm2. When pressing the "knitted texture" under the same conditions, a board with a thickness of about 0.5+vn is obtained that has a bullet 1!I rate of about 29 kN/m1 when measured in the direction of the stitching. It will be done.

``Knitted tube'' is different from woven fabric (jli non-folding r8
By pressing at 195°C with 5J/1,
The maximum fabric density and resistance of the abutment, which can be in semi-monocoque form, is present in the peripheral area of the hemisphere.

By pressing a sandwich of semifinished linen as the covering layer and knitted yarn as the middle layer at 75k (1/1) at 185°C, a very solid board material suitable for binding the covering material and the structural material is obtained. !FJ construction is possible.

Example 2 One scale of thread is reduced to 1F by combining threads (multifilament) with a weighting of 65 (glass) to 35 (perlon)!
It is rolled up and sent onto a heated roller in a spooler II, so that it weighs 25°0! 7/Il
1 of the yarn mixture is pressed at 250°C into a flat profile with a thickness of about 0.45 ml, and then shaped using a round 0-notsuge with a radius of 1. The wire has a diameter of Bmm.

This line is about 36 mm measured in the direction of the width in the stretching test.
It has an elastic modulus of kN/mm2.

Furthermore, in the same manner as in Example 1, a woven fabric was manufactured from the wound yarn, and in the same manner as in Example 1, it was heated to 180'C using a C hot press to a temperature of 13 C to about 0,/I! 'im
When pressed into a plate of rIl, this plate is extremely elastic and has an elastic modulus of about 33 kN/mm2 measured in the ij direction parallel to the fibers in a monthly stretching test.

Cut a 3-core interlocking string from the thread into the key frame 1 and press it on a roller in the same manner as before to produce a flat profiled product. This odd-shaped product has a thickness of 0.6mm
Measurement of the weave in the stretching direction C30kN/m
m'' elastic modulus (stretch test).

Example 3 (Method using fiber bundles) By bonding (mononoiramen 1-) fibers with a weight ratio of 72 (glass) to 28 (par-element), 1
A seed fiber bundle is produced (roving) and wound up.

Five rovings of this kind are combined to form one strand of one IC,
It is conducted through a steel funnel-shaped nozzle heated to 230'C into a narrow mouthpiece with a diameter of 5rQm that can just accommodate the exiting heated and molten strand. A Teflon-coated straight steel tube with water cooling at 18° C. immediately after the nozzle is used as a cold N1 zone with a length of g cm, which tightly seals the round strands. The nozzle section with a narrow (5 ml) diameter, which serves as the heating zone, has a length gcm'c. The round strands obtained are opaque, completely covered by polyamide and having closely packed glass fibers, as is clear from the electron micrograph on the wire mesh when the winding is complete.

When this cotton-like profile is rolled into a spiral, it shows normal recovery to its m-shaped state. When this stretched spiral is heated at 155° C. for 1 hour and then cooled, the spiral remains unchanged and can be used, for example, as a spring element.

Example 4 Repeat the same method as in Example 3. However, the nozzle is placed in a metal bath preheated to 110"G with the additional section of the nozzle of diameter Q, 5 cm protruding perpendicularly from the bath, and the fiber bundle is placed in the metal bath over a 11"G. The inner side 30 (J leads to the nozzle. There is a C cooling area connected to the heating area. Next to the round bar coming out of the cold comb 11 area, C cooling) 41 Air is blown.

The metal bath preheats the fiber strands so that it can run at a drawing speed C of 1 m7. The metal bath forces the air out of the fiber strands - but due to the cohesive nature of the fiber strands, it does not penetrate into it, resulting in a rod-shaped profile without air bubbles.

Example 5 Heating area and cooling area are 0. The same 7'I method as in Example 3 is used, except that it has a square cross section with sides of /14 cm to the right. By subtracting d3 in Example 3, a square bar is obtained.

Example 6 Polyethylene terephthalate fabric instead of Part 1
The same method as a3 in Example 3 is used except that the temperature of the B film is raised to 260°C. There are 19 round rods that have exceptional rigidity and can be used as arch elements for film tunnel greenhouses.

Round glue 1 In order to manufacture a unidirectional long glass fiber reinforced tube, for example, six pieces of 220 It is drawn through a series of nozzles heated to 10°C, in which the strands of glass fibers impregnated with the resulting polyamide melt lie symmetrically around a hollow polysbrene profile introduced centrally as a so-called inner liner. It can withstand weight in a circular shape. The resulting long glass fiber reinforced polyamide tube is given its final shape in a second circular calibration nozzle which is also heated. Then there is a cooling section, followed further by a drawing device.

The resulting unidirectional glass fiber reinforced tube is characterized by extremely high tensile strength, stiffness and internal compressive strength. It is also possible to carry out sheathing operations such as Aramid or carbon paper instead of glass fibers, and instead of polyamide other heat-resistant materials such as, for example, polycarbonate fibers or polypropylene ribbons. J: Yes, plastic monofilament 1 or yarn may be used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view conceptually showing the structure of the woven fabric or mrli of the present invention. Patent applicant: Bayer Akuji'' - Ngegel Hisashi 〆＋'7 訃. Hizori) () C1-nodoO\-no'n5!

Claims (1)

Claims: 1. Consisting of a mixture of at least two types of fibers, at least one type of fibers being melted under thermoforming conditions to form a thermoplastic and at least one other type of fibers being A flexible textile that is maintained as a reinforcing fiber under ripening conditions.
A method for producing an m-fiber-reinforced molded product from a thermal R11 plastic material by thermoforming a semi-finished product, the method comprising using a male composite as a semi-finished product. 2. The method of claim 1, wherein the flexible textile fiber composite has the form of a pAH bundle or strand of fibers. 3. The method of claim 11R, wherein the textile fiber composite consists of a mixture of fibers. 4. The method of claim 1, wherein the textile fiber composite consists of a fiber/yarn mixture. 5. The method according to claim 1, wherein a knitted can and/or a woven fabric is used by binding a textile fiber composite. 6. l Cloths and/or woven fabrics are shown in Figure 1 a to g (in the figure,
The white circles represent fibers that act as thermoplastics, the black circles represent fibers that act as reinforcement, and the thick circles represent core/exterior fibers. be,
A method according to claim 5. 7. A method according to claims 1 to 6, wherein the textile fiber composite contains 10 to 90% by weight of fibrous material that does not function as a thermoplastic. 8. Consisting of a mixture of at least two types of fibers, at least one type of fiber is melted and acts as a thermoplastic under thermoforming conditions, and at least one other type of fiber is subjected to the aging process. produced from a thermoplastic material by thermoforming the semi-finished product, characterized by the use of a flexible textile composite as the semi-finished product, which remains intact under shaping conditions,
Woven reinforced molded products.