WO1998044179A1 - Reseau renforce par des fibres longues - Google Patents

Reseau renforce par des fibres longues Download PDF

Info

Publication number
WO1998044179A1
WO1998044179A1 PCT/JP1998/001315 JP9801315W WO9844179A1 WO 1998044179 A1 WO1998044179 A1 WO 1998044179A1 JP 9801315 W JP9801315 W JP 9801315W WO 9844179 A1 WO9844179 A1 WO 9844179A1
Authority
WO
WIPO (PCT)
Prior art keywords
net
thermoplastic resin
resin
linear
linear material
Prior art date
Application number
PCT/JP1998/001315
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Toyama
Hiroyoshi Asakuno
Masanori Ishikawa
Susumu Arase
Original Assignee
Chisso Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chisso Corporation filed Critical Chisso Corporation
Priority to JP54141698A priority Critical patent/JP3845701B2/ja
Priority to AU65171/98A priority patent/AU6517198A/en
Publication of WO1998044179A1 publication Critical patent/WO1998044179A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics

Definitions

  • the present invention relates to a light-weight and high-strength net which has little dimensional change for a long period of time, and is excellent in corrosion resistance, resilience, bending resistance, and creep characteristics.
  • Examples of industrial applications include nets that require the highest corrosion resistance of filters for seawater intake filters and filters at wastewater treatment plants at chemical plants, and radio interference nets because they are non-conductors. It is useful as a safety fence for electric facilities utilizing seawater, and is suitable for cultivated live S-nets utilizing seawater corrosion resistance, and is particularly suitable as a ground reinforcement. Background art
  • nets using stretched monofilaments have the advantage of high strength, but creep phenomena occur when a continuous load is applied, and the nets are deformed. It has the disadvantage that Furthermore, because the product is a stretched product, its dimensions shrink due to high temperature or long-term use, and the net detaches from the frame on which it is attached. happenss. If such a phenomenon occurs in a filter at the seawater intake, foreign matter that would have been blocked by the net would pass through and would no longer serve the original purpose of the filter.
  • geotextile which is a net-like polymer material, is used as a net for ground reinforcement. This net is used for stabilization of soft ground, stabilization of embankment, and prevention of arc slippage in the field of land construction, road works, railways and other earth works.
  • Geotextiles having a mesh shape are useful for combining the grounds with one another for the purpose of preventing the ground from sliding and destruction, and for quickly removing water that has penetrated into the soil. Taking advantage of the properties of textiles, such as tensile resistance and frictional resistance with soil, it is possible to strengthen the entire mass of soil.
  • the reinforced earth method using geotextile has the characteristics that the construction is relatively easy, and the construction period can be shortened and the weight of the earth structure can be reduced.
  • geogrid which has the highest strength, is mainly obtained from polymer materials such as high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephthalate (PET). Also called the grid.
  • polymer materials such as high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephthalate (PET).
  • HDPE high-density polyethylene
  • PP polypropylene
  • PET polyethylene terephthalate
  • the grid has the property of being easily stretched and deformed, which is a fatal defect of the polymer material, and is stretched to about 15 to 20%.
  • the tensile strength at the time of application is the strongest, whereas soil has the property of starting to collapse when it is stretched by 2 to 5% and distorted. It has a shortcoming that it cannot sufficiently prevent ground slide failure in the early stage when the landslide begins to collapse.
  • thermosetting resin / thermoplastic resin is reinforced with continuous fibers, and the fiber is integrally molded into a grid. Grids are being developed. This content is disclosed in Japanese Patent Application Laid-Open No. 7-173824. However, since fiber grids have poor flexibility and impact resistance, they cannot withstand bending stress when subjected to severe unevenness or in places with a lot of rocks, or cannot withstand impact loads caused by falling rocks. It has the disadvantage that the continuous fibers are damaged without being able to withstand. On the other hand, Japanese Patent Application Laid-Open No.
  • 5-239392 discloses a ground reinforcing material in which a specific amount of continuous fiber is impregnated with a thermoplastic resin and a rib having a specific thickness is formed in a net shape. I have. This method allowed the reinforcement to have flexibility, but could not improve the impact resistance at all due to the lack of thickness.
  • An object of the present invention is to provide a light-weight and high-strength net that has little dimensional change for a long period of time, and is excellent in corrosion resistance, resilience, bending strength, and creep characteristics.
  • the long fiber reinforced net which is one of the present invention, is formed by arranging a plurality of linear objects in which inorganic fibers aligned in the longitudinal direction are impregnated with thermoplastic resin, and arranging them in a matrix in a matrix. Network.
  • the long fiber reinforced net as one of the present invention is a net formed by weaving or weaving a plurality of linear materials in which inorganic fibers aligned in the longitudinal direction are impregnated with a thermoplastic resin.
  • the long fiber reinforced net which is one of the present invention, comprises a plurality of coated linear objects in which the surface of a linear object in which inorganic fibers aligned in the longitudinal direction are impregnated with thermoplastic resin is coated with thermoplastic resin. Are nets formed by arranging them in a grid pattern vertically and horizontally.
  • the long fiber reinforced net which is one of the present invention, comprises a plurality of coated linear objects obtained by impregnating inorganic fibers aligned in the longitudinal direction with a thermoplastic resin and coating the surface with a thermoplastic resin. Woven or woven. BRIEF DESCRIPTION OF THE FIGURES
  • Figure 1 is an elevation view of a long fiber reinforced net obtained by weaving.
  • FIG. 2 is a plan view of a long fiber reinforced net obtained by weaving.
  • FIG. 3 is a cross-sectional view of a linear material impregnated with inorganic moth fibers with a thermoplastic resin.
  • FIG. 4 is a cross-sectional view of a coated linear object obtained by coating the surface of the linear object of FIG. 3 with a thermoplastic resin.
  • FIG. 5 is an elevation view of a long fiber reinforced net obtained by arranging and molding in a lattice form.
  • FIG. 6 is a cross-sectional perspective view of one covered linear object (net single yarn) constituting FIG.
  • FIG. 7 is a schematic configuration diagram showing an example of an apparatus for producing a coated linear object.
  • FIG. 8 is a graph showing the difference in the tensile creep characteristics of the net single yarn between Example 4 and Comparative Example 4.
  • the composite of the present invention, the coated composite and the method for producing them will be specifically described. First, the long fiber reinforced net of the present invention will be described with reference to FIG.
  • FIG. 1 shows an example of a long fiber reinforced net obtained by weaving a linear material in which inorganic fibers aligned in the longitudinal direction are impregnated with a thermoplastic resin.
  • the long fiber reinforced net of the present invention is a net formed by weaving a net single yarn made of a bendable linear material with a crimp loom.
  • FIG. 2 is a plan view when the long fiber reinforced net of FIG. 1 is cut in a vertical direction.
  • the linear material constituting such a long fiber reinforced net has excellent restoring force because it is a linear material in which inorganic fibers are impregnated with a thermoplastic resin. Although the shape is deformed, it returns to the original shape when the load decreases. Further, the inorganic fibers aligned in the longitudinal direction cause very little change with time, and the net does not come off from the attached frame.
  • FIG. 3 is a cross-sectional view when the linear object is cut perpendicular to the longitudinal direction.
  • a perfect circular cross-sectional view is shown as an example, but there is no limitation on the cross-sectional shape, and it may be oval, rectangular, or sometimes polygonal.
  • the shape is easy to be woven and arranged in a lattice, for example, a circular shape or a rectangular shape that is long horizontally.
  • the diameter or thickness of the linear object is 1 mm or less, the rigidity of the net is too small because it is too thin, or the vertical splitting phenomenon easily occurs due to imbalance, and the strength of the net is extremely reduced. I will. On the other hand, if it exceeds 10 mm, it becomes difficult to process it into a net.
  • FIG. 4 is a cross-sectional view of a coated linear product obtained by seeding the surface of the linear product of FIG. 3 with a thermoplastic resin, and includes a coating layer 1 and a linear product 2.
  • the coating layer 1 is formed on the entire outer periphery of the linear object 2.
  • the average thickness of the coating layer 1 is set in the range of 0.2 to: L.Omm, preferably in the range of 0.3 to 0.8 mm. If the thickness of the coating layer 1 is less than 0.1 mm, the bending strength is extremely reduced, while if it is thicker than 1.2 mm, the bending strength is improved corresponding to the amount of material used. In addition, the sashimi layer 1 becomes too thick and handling becomes inconvenient.
  • FIG. 5 shows an example of a long fiber reinforced net using a coated linear material.
  • the long fiber reinforced net 50 of the present invention is composed of a plurality of net single yarns 20 composed of a bendable coated linear material arranged in a plurality of vertical and horizontal lattices. Is a mesh having a large number of meshes 24 formed by fixing the respective intersections 2 2.
  • FIG. 6 is a perspective view showing an example of the coated linear object.
  • Fig. 6, 3 is the longitudinal direction A large number of aligned inorganic fibers with a continuous length. In FIG. 6, they are aligned in the direction of arrow X.
  • the inorganic fibers 3 are impregnated with a thermoplastic resin 4 for adhering the continuous inorganic fibers 3 to each other.
  • a thermoplastic resin 4 for adhering the continuous inorganic fibers 3 to each other.
  • Various types of tapes, linear shapes, etc. are formed from the inorganic fibers 3 and the thermoplastic resin 4.
  • a linear object 2 having a shape is formed.
  • a coating layer 1 is coated on the outer peripheral surface 5 of the linear object 2, and the coated linear object 100 such as a tape or thread is long in one direction as a whole (in the figure, the direction of arrow X). Is forming.
  • thermoplastic resin (Thermoplastic resin)
  • thermoplastic resin 4 which is a constituent component of the linear material 2
  • any kind of thermoplastic resin that can be impregnated into the inorganic fibers 3 can be used.
  • thermoplastic resin 4 examples include the following.
  • Poly- ⁇ -olefin resin polyethylene resin, polypropylene resin, poly-1-butene resin, poly-4-methyl-1-pentene resin, propylene-ethylene copolymer resin, and propylene-1 Butene copolymer resin
  • Polyester resin polyethylene terephthalate, polybutylene terephthalate, and polyethylene terephthalate toysoflate
  • Polyamide resin Polyamide 16, Polyamide 7, Polyamide 66, Polyamide 61, Polyamide 11 and Polyamide 12; • Polyacetal
  • thermoplastic resins crystalline polyolefins, especially crystalline, are used in view of versatility and mechanical strength.
  • Polypropylene is preferred.
  • the resin does not have a reactive functional group or a polar functional group for imparting interfacial adhesion to inorganic fibers, particularly glass fibers, at the molecular end group, such as polyolefin (poly-alpha-olefin).
  • an aliphatic unsaturated acid is usually preferable.
  • an unsaturated acid acrylic acid, methacrylic acid, maleic acid, citraconic acid and mesaconic acid can be used.
  • One or more selected from acids can be exemplified. Particularly preferred is maleic acid.
  • the derivative such as an unsaturated acid anhydride which can be used as a modifier is usually preferably an aliphatic unsaturated acid anhydride, and one or more selected from maleic anhydride and itaconic anhydride can be exemplified. Particularly preferred is maleic anhydride (maleic anhydride).
  • silane-based coupling agent examples include a vinyl-based silane such as vinyltrimethoxysilane and an amino-based compound such as ⁇ - (2-aminoethyl) 3-aminopropylmethyldimethoxysilane.
  • examples thereof include at least one selected from epoxy silanes such as silanes, 3-glycidoxypropyltrimethoxysilane, and methacryloxysilanes such as 3-methacryloxypropyltrimethoxysilane.
  • an organic peroxide may be used as necessary.
  • Organic peroxides include 2,5-dimethyl (t-butylperoxy) hexane, 1,3-bis (t-butyl-oxypyroxypropyl) benzene, dimethyl peroxyde and benzoyl peroxyde.
  • 2,5-dimethyl (t-butylperoxy) hexane 1,3-bis (t-butyl-oxypyroxypropyl) benzene, dimethyl peroxyde and benzoyl peroxyde.
  • thermoplastic resin 4 as a component of the linear material 2
  • the unmodified resin and the modified resin may be used alone as described above, or at least two of them may be used. Combination And may be used as a resin composition.
  • the blending amount of the modified resin in the thermoplastic resin composition is preferably an amount sufficient for firmly binding the inorganic fibers 3 and the thermoplastic resin 4.
  • the modified resin and the modified resin composition are mixed, for example, by mixing a thermoplastic resin, a modifier, and an organic peroxide with a mixing means such as a Henschel mixer (trade name), and then mixing the mixture with an extruder.
  • a mixing means such as a Henschel mixer (trade name)
  • the melt-kneaded product is supplied and melt-kneaded, and then the melt-kneaded material can be extruded and formed.
  • thermoplastic resin 4 constituting the linear material 2 may contain one or more kinds of the following additives as necessary.
  • Antioxidants • Antioxidants, heat stabilizers, ultraviolet absorbers, greasy destruction inhibitors, antistatic agents, lubricants, plasticizers, mold release agents, flame retardants (flame retardants), flame retardant aids and crystallization accelerators (Nucleating agent; crystallization agent) and dyes and pigments.
  • additives may be used in a state where they are previously blended with the above-mentioned thermoplastic resin to be a matrix, or may be used in a master batch state.
  • the inorganic fiber 3 which is a constituent component of the linear material 2 one produced from various inorganic fibers can be used.
  • the inorganic fiber for example, glass moth fiber, rock wool (rock wool), asbestos, quartz fiber, metal fiber, whisker (whisker), and carbon fiber are preferable.
  • glass fibers are usually preferred in view of their properties and availability.
  • a hard glass fiber is preferable, and in particular, an E-glass fiber, which is a non-alkaline glass, is preferable.
  • E-glass fiber which is a non-alkaline glass
  • this glass fiber commercially available glass rovings for resin reinforcement can be used.
  • This glass roving generally has an average fiber diameter of 4 to 30 ⁇ m, a number of filament bundles of 400 to 100, and a Tex number of 300 to 200,000. Ah
  • those having an average fiber diameter of 9 to 23 / zm are preferred. If necessary, these glass rovings can be combined and used.
  • the inorganic fiber 3 is preferably surface-treated with a surface treating agent such as a silane-based coupling agent, a titanate-based coupling agent, a boron-based coupling agent, or an aluminate-based coupling agent.
  • a surface treating agent such as a silane-based coupling agent, a titanate-based coupling agent, a boron-based coupling agent, or an aluminate-based coupling agent.
  • the inorganic fibers 3 described above may be used alone or in combination of two or more.
  • thermoplastic resin 4 As a method of producing the linear material 2 using the thermoplastic resin 4 and the inorganic fibers 3, a part of the inorganic fibers 3 arranged substantially in parallel is impregnated with the molten thermoplastic resin 4. Can be mentioned. When impregnating the inorganic fiber 3 with the resin, the inorganic fiber 3 is spread as uniformly as possible on a plane, and the resin is uniformly impregnated into the spread fiber to obtain the linear object 2 obtained. Mechanical strength can be improved.
  • the method of impregnating the inorganic fibers 3 with the thermoplastic resin 4 may be any method as long as the inorganic fibers 3 can be impregnated with the thermoplastic resin. For example, this impregnation method is disclosed in Japanese Patent Publication No.
  • This type of linear material is obtained, for example, by uniformly opening inorganic fibers such as roving on a plane, and then uniformly impregnating the inorganic fibers with a thermoplastic resin melt-kneaded in an extruder. Can be formed.
  • the content of the inorganic fibers 3 in the linear material 2 is preferably from 10 to 80% by weight, more preferably from 30 to 70% by weight. By keeping the content within the above range, inorganic moth fibers and heat The thermoplastic resin is in sufficient contact, and the inorganic fibers are integrally bonded to each other by the thermoplastic resin.
  • the reinforcing effect such as tensile strength may not be sufficiently exhibited.
  • the content of the inorganic fiber is 90% by weight or more, a sufficient reinforcing effect may not be exhibited. It is understood that the cause is that the thermoplastic resin is not sufficiently impregnated into the inorganic fibers.
  • the coating layer 1 is a layer formed on the outer peripheral surface of the linear object 2 with a thermoplastic resin having a predetermined property.
  • the thermoplastic resin constituting the coating layer 1 may be different from the thermoplastic resin constituting the linear material 2 described above, but may be the same resin as the thermoplastic resin constituting the linear material 2 Is preferred. Alternatively, a material having compatibility with the thermoplastic resin constituting the linear material 2 is preferable. If these thermoplastic resins are the same type of resin or are compatible with each other, a high bonding force is formed at the interface between the coating layer 1 and the linear material 2. It is preferred.
  • thermoplastic resin constituting the S layer 1 examples include the following.
  • Poly- ⁇ -olefin resin Polyethylene resin, Polypropylene resin, Poly-1-butene resin, Poly-1-methyl-1-pentene resin, propylene-ethylene copolymer resin and propylene resin 1 Butene copolymer resin
  • Polyester resin polyethylene terephthalate, polybutylene terephthalate and polyethylene terephthalate toy sophaterate
  • Polyamide resin Polyamide 16, Polyamide 7, Polyamide 66, Polyamide 610, Polyamide 11 and Polyamide 12;
  • thermoplastic resin has a reactive functional group or a non-functional functional group for imparting interfacial adhesion to inorganic fibers, particularly glass fibers, to the molecular terminal group like polyolefin (poly- ⁇ -olefin). If not, measures to modify thermoplastic resin with unsaturated acid or its derivative such as acid anhydride or silane coupling agent, and polymer modified with ⁇ or unsaturated acid It is useful to take measures such as blending the required amount with unmodified resin.
  • crystalline polyolefin particularly crystalline polypropylene, is preferable from the viewpoints of versatility and mechanical strength.
  • the unsaturated acid that can be used as the above modifier is usually an aliphatic unsaturated acid, for example, one or more selected from acrylic acid, methacrylic acid, maleic acid, citraconic acid, and mesaconic acid. And preferably maleic acid.
  • Derivatives such as unsaturated acid anhydrides that can be used as modifiers are usually aliphatic unsaturated acid anhydrides, for example, one or more selected from maleic anhydride and itaconic anhydride, preferably Is maleic anhydride (maleic anhydride).
  • silane-based coupling agent examples include a bullet-based silane such as biertrimethoxysilane, an amino-based silane such as ⁇ - (2-aminoethyl) 3-aminopropylmethyldimethoxysilane, and the like.
  • examples thereof include one or more selected from epoxy silanes such as 3-glycidoxypropyltrimethoxysilane and methacryloxysilanes such as 3-methacryloxypropyl trimethoxysilane.
  • an organic peroxide may be used in combination as necessary.
  • organic peroxides include, for example, 2,5-dimethyl (t-butylvinyloxy) hexane, 1,3-bis (t-butyl-oxyisopropyl) benzene, dicumyl peroxyside And benzoyl peroxyside.
  • the thermoplastic resin forming the coating layer 1 includes the unmodified resin and the modified resin as described above.
  • the resin may be used alone, or at least two of them may be used in combination as a resin composition.
  • thermoplastic resin forming the coating layer 1 may contain one or more kinds of the following additives as necessary:
  • Antioxidants heat stabilizers, UV absorbers, resinous destruction inhibitors, antistatic agents, lubricants, plasticizers, mold release agents, flame retardants (flame retardants), flame retardant aids and crystallization accelerators ( Nucleating agents, crystallization agents), dyes, and pigments.
  • additives may be used in a form previously blended with the above-mentioned crystalline thermoplastic resin to be a matrix, or may be used in the form of a master batch.
  • the coating layer 1 for example, a method in which the above resin is formed into a film shape in advance and then the film is laminated on the surface of the linear material 2. It can be manufactured by a method of coating on the surface of the steel.
  • a thermoplastic resin mixed with a modifier or the like is supplied to an extruder, and the mixture is melted and kneaded. Forming an ilme.
  • the linear material 2 is formed by impregnating the inorganic fiber 3 with a molten thermoplastic resin. Then, the linear material 2 is laminated in a semi-molten state with a film that has been wound up in advance and laminated.
  • the linear object 2 When bonding the linear object 2 and the film, the linear object 2 does not necessarily have to be in a semi-molten state, and after the linear object 2 is cooled and solidified, it can be bonded to the film using an adhesive. Good.
  • the coating layer 1 is formed by coating
  • a thermoplastic resin is extruded onto the surface of the linear object 2 while the linear object 2 is kept in a semi-melted state, and the coating is performed.
  • the surface of the linear object 2 may be coated after the linear object 2 is cooled and solidified.
  • net single yarns 20 made of a coated linear material such as a tape or a linear shape are arranged in a grid pattern, and then the intersections 22 are melt-bonded by hot pressing.
  • the long fiber reinforced net of the present invention can be manufactured. This is suitable for ground reinforcement such as fiber darid.
  • the method for producing the long-fiber reinforced net of the present invention is not limited to the above method.
  • a single net 20 is woven into a desired net by using an existing loom or knitting machine, and thereafter, Any method such as hot press molding can be adopted.
  • Any method such as hot press molding can be adopted.
  • the long fiber reinforced net of the present invention is lightweight and does not come off from the frame to which the net is attached due to the reduction in size during long-term use.
  • the coated linear material used in the long fiber reinforced net of the present invention has remarkably high bending strength.
  • the long-fiber reinforced net of the present invention manufactured by using this linear material is excellent in tensile strength, rigidity, creep characteristics and bending resistance in the embankment method, and is more excellent in the conventional embankment method.
  • ⁇ ⁇ ⁇ It has features such as embankment and steeper embankment.
  • the long fiber reinforced net of the present invention will be specifically described based on examples of the long fiber reinforced net of the present invention and, in some cases, with reference to useful comparative examples.
  • the present invention is not limited by these embodiments.
  • Example 1 The linear material obtained in Example 1, the coated linear material obtained in Example 2 and Example 3, and the wires constituting Comparative Examples 1 to 3 were each cut to a length of 20 mm. Then, after folding in two and completely folding, it was measured whether to release the bending force and restore to the original state based on the following evaluation criteria.
  • Samples having a width of 20 cm were formed in the longitudinal direction and the lateral direction of each net obtained in Examples 4 to 9 and Comparative Example 4, and a tensile test was performed using the samples.
  • the obtained breaking load was converted to 1 m, and the tensile strength in the longitudinal direction * lateral direction of the net was determined.
  • Example 4 A load corresponding to 12 of the breaking strength of each net single yarn was applied to the net obtained in Example 4 and the net single yarn constituting the geogrid material of Comparative Example 4 (in Example 4, 83 3 N, Comparative Example 4 was 490 N), and the creep characteristic was the strain generated in each single yarn at that time.
  • the creep characteristics were measured at a distance between chucks of 7 O mm using an autograph manufactured by Toyo Seiki Co., Ltd. as a measuring instrument.
  • the extruder 32 was used to melt maleic anhydride-modified polypropylene [MFR (230 t: 2.1.18N) lOOg / lOmin] at a temperature of 270 ° C. After passing through two glass rovings 36 in which 4000 individual filaments were bundled in a bath 34, and passing through a nozzle (not shown) with a diameter of 2.5 mm provided at the outlet of the bathtub, The glass roving impregnated with the intense resin was pulled out.
  • MFR maleic anhydride-modified polypropylene
  • the mixed resin was cooled and solidified through a cooling roll (Epp roll) 37 to obtain a linear material 38 having a glass fiber content of 60% by weight.
  • the obtained linear material was used as a net single yarn, and the single yarn was hooked on a crimp loom to form a net having a mesh of 17 mm.
  • the properties of the nets and linear objects obtained were measured according to the above-mentioned evaluation methods. The results are shown in Table 1.
  • the obtained coated linear material was used as a net single yarn, and the single yarn was hooked on a crimp loom to form a net having a mesh of 17 mm.
  • the properties of the obtained net and coated linear material were measured according to the above-mentioned evaluation method. The results are shown in Table 1.
  • the linear material 38 having a diameter of 2.5 mm obtained in Example 1 was guided to a coating die 42 of an extruder 40, and a low-density polyethylene resin (0.5 mm) was formed so that the coating thickness became 0.5 mm.
  • the obtained coated linear material was used as a net single yarn, and the single yarn was hooked on a crimp loom to form a net having a mesh of 17 mm.
  • the properties of the obtained net and coated linear material were measured according to the above-mentioned evaluation method. The results are shown in Table 1.
  • a coated linear material to be a net single yarn was manufactured. That is, using an extruder 32, the maleic anhydride-modified polypropylene [crystal melting point (Tm: DSC measurement) 160] and MFR (2.1.18N: 230 ° C) ) 1300 g ZlOmin] was melted into a bath at a temperature of 270. A glass orifice impregnated with molten resin was pulled out from the provided 30 mm X 0.5 mm die (not shown).
  • the resin was cooled and solidified through a cooling roll (two-roll) 37 to obtain a linear product 38.
  • the obtained linear material 38 was guided to a coating die 42 of an extruder 40, and the crystalline polypropylene [crystal sharp point (T m: DSC) was adjusted so that the coating thickness became 0.5 mm.
  • OgZlOmin] uniformly coat the entire surface of the linear material, and then cool and solidify through cooling bath 44 Thus, a coating layer was formed.
  • the obtained coated linear object 46 is 33 mm wide and 1.44 mm thick. It was a thing.
  • All of the coated wires obtained were excellent in tensile strength, bending resistance, and tensile creep characteristics.
  • the long fiber reinforced net of the present invention was manufactured using the coated linear material.
  • the coated linear material was used as a single net yarn, laminated at intervals of 200 mm in length and at intervals of 200 mm in width as shown in Fig. 5, and welded with a 180 hot press. Glued.
  • the obtained net was measured according to the above evaluation method. The results are shown in Table 2.
  • Example 4 Except that the thickness of the coating layer of Example 4 was changed to 0.35 mm, except that the thickness of the coating layer was changed to 0.35 mm, the width was 32.7 mm and the thickness was 1.14 mm. A coated linear material 46 having a size was obtained.
  • All of the coated wires obtained were excellent in tensile strength, bending resistance, and tensile creep characteristics.
  • the long fiber reinforced net of the present invention was manufactured by using the above-mentioned covering material.
  • the coated linear material was used as a single net yarn, laminated at a length of 200 mm and a width of 20 mm as shown in Fig. 5, and melt-bonded with a 180 hot press. did.
  • the obtained net was measured according to the above evaluation method. The results are shown in Table 2.
  • the linear material 38 impregnated with the molten resin of Example 4 was cooled through the cooling roll 36 without passing through the coating die 42, and was cooled to a width of 32 mm and a thickness of 0.44 mm.
  • a linear object 38 was obtained (the glass fiber content of the linear object 38 was 62% by weight.)
  • the properties of the obtained linear object 38 were measured in accordance with the above evaluation method. The results are shown in Table 2.
  • the obtained linear material had excellent tensile strength and tensile creep characteristics, but poor bending resistance.
  • the long moth fiber-enhanced net of the present invention was produced using the above-mentioned linear material. That is, the linear material is used as a net single yarn, and as shown in Fig. 5, laminated at intervals of 200 mm in length and at intervals of 200 mm in width, and melt-bonded by 180 hot press. did.
  • the obtained net was measured according to the above-mentioned evaluation method. The results are shown in Table 2.
  • a coated linear material to be a net single yarn was manufactured. That is, using an extruder 32, a maleic anhydride-modified polypropylene [crystal 3 ⁇ 4 point (Tm: DSC measurement) 160 6, ⁇ (2.1.18 ⁇ : 230 t) 13 0 g 1 0 min] was melted and passed through a bath 3 4 at a temperature of 2700 ° C. A glass orifice impregnated with molten resin was pulled out of a die (not shown).
  • the molten resin was cooled and solidified through a cooling roll (two-roll) 37 to obtain a linear product 38 (the glass fiber content of the linear product was 30% by weight).
  • the obtained linear material 38 was guided to the coating die 42 of the extruder 40, and the crystalline polypropylene [crystal melting point (T m: DSC) was adjusted so that the coating thickness became 0.5 mm. Measure) 160, MFR (2.1.18N: 230 2) 2.0 g / 10 min] to uniformly cover the entire surface of the linear material, then cool and solidify through cooling bath 44 To form a basement layer.
  • the obtained coated linear object 46 had a size of 33 mm in width and 1.44 mm in thickness.
  • the characteristics of the obtained coated linear object 46 were determined in accordance with the above evaluation method. Measured. as a result Is shown in Table 2.
  • the obtained coated linear material was excellent in tensile strength, bending resistance and tensile creep characteristics.
  • the long fiber reinforced net of the present invention was manufactured using the coated linear material. That is, the linear object was used as a net single yarn, laminated at intervals of 100 mm in length and at intervals of 100 mm in width as shown in Fig. 5, and melted by a hot press of 180. Glued. The obtained net was measured according to the above evaluation method. The results are shown in Table 2.
  • Example 5 The coated linear material obtained in Example 5 was used as a single net yarn, and was hung on a loom at intervals of 200 mm in length and at intervals of 200 mm in width as shown in FIG. After making into a net shape, it was melt-bonded with a hot press of 180. The obtained net was measured according to the evaluation method described above. The results are shown in Table 2.
  • Example 6 The coated linear material obtained in Example 6 was used as a net single yarn, and was hanged on a loom at intervals of 200 mm in length and 200 mm in width as shown in FIG. After making into a net shape, it was melt-bonded with a hot press of 180. The obtained net was measured according to the evaluation method described above. The results are shown in Table 2.
  • the FRP net (Nestem GB5, a product of Nestem Association) was measured according to the evaluation method described above. The results are shown in Table 2.
  • FIG. 8 shows the tensile creep characteristics of the net single yarns of Example 4 and Comparative Example 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention se rapporte à un réseau renforcé par des fibres longues que l'on prépare en disposant de manière longitudinale et transversale, en forme de treillis, soit une pluralité de matières linéaires, préparées grâce à l'imprégnation de fibres inorganiques par une résine thermoplastique, soit une pluralité de matières linéaires enrobées obtenues grâce au revêtement des surfaces des matières linéaires par la résine thermoplastique, puis par le moulage, le tricotage et le tissage desdites matières. Ce réseau, qui présente la configuration décrite ci-dessus, est un réseau léger et très résistant dont les variations dimensionnelles sont faibles, même après une longue période, et qui est excellent du point de vue de sa résistance à la corrosion, de son aptitude à la remise en état, de sa résistance à la flexion et de ses caractéristiques de fluage.
PCT/JP1998/001315 1997-04-03 1998-03-25 Reseau renforce par des fibres longues WO1998044179A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54141698A JP3845701B2 (ja) 1997-04-03 1998-03-25 長繊維強化ネット
AU65171/98A AU6517198A (en) 1997-04-03 1998-03-25 Long fiber-reinforced net

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10108797 1997-04-03
JP9/101087 1997-04-03
JP9/157615 1997-05-30
JP15761597 1997-05-30

Publications (1)

Publication Number Publication Date
WO1998044179A1 true WO1998044179A1 (fr) 1998-10-08

Family

ID=26442015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/001315 WO1998044179A1 (fr) 1997-04-03 1998-03-25 Reseau renforce par des fibres longues

Country Status (4)

Country Link
JP (1) JP3845701B2 (fr)
AU (1) AU6517198A (fr)
TW (1) TW360733B (fr)
WO (1) WO1998044179A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008099501A (ja) * 2006-10-16 2008-04-24 Hokuriku Electric Power Co Inc:The 送電鉄塔の回線標示装置
CN109192989A (zh) * 2018-08-27 2019-01-11 广州倬粤动力新能源有限公司 板栅的加工方法
EP4001480A1 (fr) * 2018-02-23 2022-05-25 Delcotex Delius Techtex GmbH & Co KG Structure de fil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090252941A1 (en) * 2008-04-03 2009-10-08 Usg Interiors, Inc. Non-woven material and method of making such material
US8834759B2 (en) 2010-04-13 2014-09-16 3M Innovative Properties Company Inorganic fiber webs and methods of making and using
KR101936299B1 (ko) 2017-04-28 2019-01-08 시피케미칼 (주) 위사와 경사간의 결합이 풀리지 않는 지오그리드의 제직구조

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229930U (fr) * 1988-04-27 1990-02-26
JPH05239822A (ja) * 1992-02-28 1993-09-17 Asahi Chem Ind Co Ltd 地盤補強ネット
JPH07150440A (ja) * 1993-11-27 1995-06-13 Gunze Ltd フラットヤーンからなるネット部材
JPH07173824A (ja) * 1993-11-04 1995-07-11 Mitsui Toatsu Chem Inc 地盤補強材

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229930U (fr) * 1988-04-27 1990-02-26
JPH05239822A (ja) * 1992-02-28 1993-09-17 Asahi Chem Ind Co Ltd 地盤補強ネット
JPH07173824A (ja) * 1993-11-04 1995-07-11 Mitsui Toatsu Chem Inc 地盤補強材
JPH07150440A (ja) * 1993-11-27 1995-06-13 Gunze Ltd フラットヤーンからなるネット部材

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008099501A (ja) * 2006-10-16 2008-04-24 Hokuriku Electric Power Co Inc:The 送電鉄塔の回線標示装置
EP4001480A1 (fr) * 2018-02-23 2022-05-25 Delcotex Delius Techtex GmbH & Co KG Structure de fil
CN109192989A (zh) * 2018-08-27 2019-01-11 广州倬粤动力新能源有限公司 板栅的加工方法

Also Published As

Publication number Publication date
JP3845701B2 (ja) 2006-11-15
TW360733B (en) 1999-06-11
AU6517198A (en) 1998-10-22

Similar Documents

Publication Publication Date Title
US3930091A (en) Unidirectional webbing material
US8852368B2 (en) Polyolefin coated fabric reinforcement and cementitious boards reinforced with same
JP5432019B2 (ja) 難燃性ネット状物、網糸用未硬化状線状物の製造方法、及び難燃性ｆｒｐネット本体の製造方法
EP0144939A2 (fr) Tissu de base pour renforcement
US3881522A (en) Unidirectional webbing material
US3919028A (en) Method of making unidirectional webbing material
WO1998044179A1 (fr) Reseau renforce par des fibres longues
JP2007092225A (ja) 複合メッシュ状物、および同メッシュ状物を用いたコンクリート構造物の補修または補強工法
JP2008266871A (ja) 耐熱性に優れるポリプロピレン繊維
JP2010144376A (ja) コンクリート剥落防止用ネット、及び該ネットを用いたコンクリート剥落防止方法
WO2016016348A1 (fr) Chemise destinée à la rénovation de systèmes de conduite de fluides
JP4820836B2 (ja) ポリプロピレン繊維
JPS62288633A (ja) 連続炭素繊維とポリオレフイン樹脂との複合材料
JPS6366362A (ja) 補強用基布
JP2002046750A (ja) 樹脂網状構造体及び袋部材
GB2266322A (en) Thermoplastic composite material
JP4093369B2 (ja) 長繊維強化ポリプロピレン樹脂成形材料用ガラス繊維、及び長繊維強化ポリプロピレン樹脂成形材料
JP2000117865A (ja) 連続無機繊維強化シート
JPH11229353A (ja) 土木用補強シート
JPH0924565A (ja) 透水性土木シートおよびその製造方法
JPH10265246A (ja) セメント強化用ポリプロピレン繊維
JPH11262354A (ja) 防風防虫ネット
JPH10311036A (ja) 土木建築用シ−ト及び敷設方法
JP6643467B2 (ja) 繊維強化樹脂複合材の製造方法、繊維強化樹脂複合材及び成形品
JPH05311536A (ja) 網状繊維構造物

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA