JP4900772B2 - Non-slip architectural sheet - Google Patents

Description

  The present invention relates to a building sheet having antislip and antifouling properties, and further relates to a building sheet having excellent drainage in addition to antislip and antifouling properties.

  Conventionally, an anti-slip construction sheet such as a flooring has been provided with an anti-slip property by providing an uneven shape on the sheet surface (for example, Patent Document 1). However, such a flooring material has a drawback that it easily becomes dirty due to sand, dust, dust or the like being buried in the concave and convex portions, or because it is easy to collect water and is difficult to dry.

  In view of this, a flooring has been proposed in which an adhesive is applied to the surface and inorganic particles such as sand, ceramic, and glass are fixed (for example, Patent Document 2). However, such flooring may drop off due to friction during walking, damage the production equipment such as rolls during flooring processing, damage tools during flooring construction, and walking during flooring construction. There was a risk of falling and injuring people.

Further, in order to make it difficult for water to collect, a means for improving water drainage by imparting water repellency to the building material surface to make water polka dots and rolling the polka dots by the floor gradient is considered (for example, Patent Documents). 3). However, when the polka dots do not roll effectively, the polka dots have a small surface area relative to the amount of water present, so that the water does not easily evaporate. If this happens, the polka dots will remain on the surface indefinitely, and the polka dots will become dirty, resulting in the floor material becoming dirty.
In this field, even if the surface is substantially smooth, a flooring material that has satisfactory slip resistance, antifouling properties, and drainage properties has not yet been commercialized, and development is desired.

Japanese Patent Application No.59-268230 Japanese Patent Application No.57-229183 Japanese Patent Application No. 2003-341900

  An object of the present invention is to solve the above-mentioned problems, and to provide a flooring which has excellent antislip properties and antifouling properties even when the surface is substantially smooth, and also has drainage properties.

The means taken by the present invention in order to achieve the above-mentioned object is that the synthetic resin granules having 100 parts by weight of the thermoplastic resin and a particle size of 10 to 90 μm and a crosslinking degree of 15 to 95% are 5.0 to 70% A thermoplastic resin building sheet characterized by comprising a thermoplastic resin layer containing a surface as a surface layer, wherein the thermoplastic resin is polyvinyl chloride, and the synthetic resin granules The body is at least one selected from cross-linked PVC and cross-linked acrylic . Furthermore, it is that it is set as the thermoplastic resin building sheet which adds 0.3-3.0 weight part of surfactant with respect to 100 weight part of thermoplastic resins to the said thermoplastic resin layer.

  According to the present invention, by adding a specific granular material to a thermoplastic resin, it is possible to provide an architectural sheet having excellent slip resistance and antifouling properties and having drainage properties even if the surface is substantially smooth. Can do.

  The thermoplastic resin building sheet according to the present invention has a thermoplastic resin layer as a surface layer containing 100 parts by weight of a thermoplastic resin and 5.0 to 70 parts by weight of a synthetic resin granule having a crosslinking degree of 15 to 95%. Furthermore, 0.3 to 3.0 parts by weight of a surfactant is added to 100 parts by weight of the thermoplastic resin. Details will be described below.

  The thermoplastic resin used in the present invention includes polyvinyl chloride, chlorinated polyethylene, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, thermoplastic elastomer (olefin, styrene, polyester, urethane, etc.), polyester And thermoplastic resins such as acrylic, and these may be used alone or in combination.

  Synthetic resin granules (hereinafter also referred to as crosslinked granules) having a crosslinking degree of 20 to 90% used in the present invention are not uniformly compatible in the thermoplastic resin layer, but at the processing temperature of the thermoplastic resin layer. It does not flow and keeps its original shape and is dispersed over the entire thickness, and a part thereof is exposed on the surface of the thermoplastic resin layer.

  As the crosslinked granular material, a thermoplastic resin such as an olefin resin, a halogen-containing resin, an acrylic resin, a styrene resin, a urethane resin, ABS, or a crosslinked resin obtained by crosslinking these copolymers can be used. It is preferable that the crosslinked granular material has good adhesiveness with the thermoplastic resin of the thermoplastic resin layer so that the crosslinked granular material is less likely to fall off from the thermoplastic resin layer. For example, in a building sheet made of vinyl chloride, crosslinked PVC, crosslinked acrylic, and the like are preferable as the crosslinked granular material.

The degree of cross-linking of the crosslinked granule is required to be 15 to 95%. If the degree of cross-linking is less than 15%, the granule is deformed and it becomes difficult to obtain an anti-slip effect. Conversely, if the degree of cross-linking exceeds 95%, the granule The drop-off prevention property of the deteriorates. Further, considering the anti-slip property and the ability to prevent the granular material from falling off, the degree of crosslinking is preferably 20 to 90%. The degree of crosslinking in the present invention is a value measured by a method of immersing a test specimen in a solvent and calculating from the extracted amount. In the measurement method, the test specimen is immersed in a solvent for 24 hours, and the total mass before extraction and the mass of the gel portion that is not extracted are measured to determine the degree of crosslinking. In the present invention, the degree of cross-linking was determined from the measured values of a cross-linked granular material as a test sample and tetrahydrofuran (hereinafter referred to as THF) as a solvent. The calculation formula is as follows.
ρ = W _A / W _B × 100
ρ: degree of crosslinking (%)
W _A : Total mass before extraction (g)
W _B : Mass of the gel part (g)

  It is essential that the added amount of the crosslinked granular material is 5.0 to 70 parts by weight with respect to 100 parts by weight of the thermoplastic resin. This is because when the amount is less than 5.0 parts by weight of the crosslinked granular material, unevenness on the surface of the thermoplastic resin layer is reduced and the slip resistance is insufficient. Moreover, when it exceeds 70 weight part, workability will worsen, and the unevenness | corrugation on the surface of a thermoplastic resin layer will increase, and dust etc. will accumulate easily and antifouling property will fall.

  The particle size of the crosslinked granular material is preferably 10 to 300 μm, and considering the anti-slip property and antifouling property, the particle size is preferably 20 to 150 μm, more preferably 35 to 90 μm.

The surfactant used in the present invention is used for the purpose of imparting hydrophilicity to the construction sheet made of thermoplastic resin, reducing the contact angle with water, and improving drainage.
The surfactants include anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, and other composite surfactants. However, heat resistance during sheet processing, In view of weather resistance, nonionic surfactants are particularly preferable.

  The nonionic surfactant has a polyethylene glycol type and a polyhydric alcohol type. Specifically, in the polyethylene glycol type, higher alcohol ethylene oxide adduct, alkylphenol ethylene oxide adduct, fatty acid ethylene oxide adduct, polyhydric alcohol fatty acid ester. Examples include ethylene oxide adducts, higher alkylamine ethylene oxide adducts, oil and fat ethylene oxide adducts, and polypropylene glycol ethylene oxide adducts. For polyhydric alcohol types, fatty acid esters of glycerol, fatty acid esters of pentaerythritol, sorbitol and sorbitan Fatty acid esters of sucrose, fatty acid amides of alkanolamines, and the like.

  If the amount of the surfactant added is large, the surfactant tends to ooze out from the thermoplastic resin layer, and there is a possibility that the antifouling property due to stickiness may decrease. Conversely, if the amount of the surfactant added is small, Since the effect of the surfactant is reduced and it is difficult to obtain hydrophilicity, the addition amount of the surfactant is preferably in the range of 0.3 to 3.0 parts by weight with respect to 100 parts by weight of the thermoplastic resin.

  Other additives such as plasticizers, stabilizers, light stabilizers, ultraviolet absorbers, antioxidants, lubricants, fillers, flame retardants, antibacterial agents, colorants, deodorants and the like do not impair the purpose of the present invention. It can be suitably added to the thermoplastic resin within a range.

  Plasticizers are used to increase the flexibility, elasticity, and flexibility of thermoplastic resins and to improve processability and moldability. Specifically, di-n-butyl phthalate and di-2-ethylhexyl phthalate (Hereinafter referred to as DOP), di-n-octyl phthalate, diisononyl phthalate, diisodecyl phthalate, diisooctyl phthalate, octyl decyl phthalate, butylbenzyl phthalate, di-2-ethylhexyl isophthalate, dicyclohexyl phthalate Phthalate plasticizers such as Adipic ester plasticizers such as di-2-ethylhexyl adipate, di-n-decyl adipate, diisodecyl adipate, and the like. Sebacic ester plasticizers such as dibutyl sebacate and di-2-ethylhexyl sebacate. Phosphate ester plasticizers such as tributyl phosphate, tri-2-ethylhexyl phosphate, 2-ethylhexyl diphenyl phosphate, tricresyl phosphate, and trixylenyl phosphate. Tritometic acid ester plasticizers such as trioctyl tritometate and tridecyl tritometate. Epoxy plasticizers such as epoxidized soybean oil. Examples thereof include polyester polymer plasticizers, and one or more of these can be used.

  Stabilizers are used to prevent thermal deterioration of the resin composition during heating, specifically lead-based stabilizers (tribasic lead sulfate, basic lead sulfite, dibasic lead phosphite, dibasic stearic acid). Lead, lead stearate, 12-hydroxylead stearate, dibasic lead phthalate), zinc stabilizer (zinc stearate, zinc 12-hydroxystearate, zinc benzoate, zinc laurate), alkaline earth metal Stabilizers (barium stearate, barium laurate, barium ricinoleate, barium 12-hydroxystearate, calcium stearate, calcium 12-hydroxystearate, magnesium stearate, magnesium 12-hydroxystearate), cadmium stabilizers (stearin) Cadmium acid, cadmium laurate) and other metal-based materials Agents and include these composite stabilizers, one or more of these can be used.

  Ultraviolet absorbers are used to prevent deterioration due to ultraviolet rays when exposed outdoors. Specifically, benzophenone ultraviolet absorbers, salsylate ultraviolet absorbers, benzotriazole ultraviolet absorbers, cyanoacrylate ultraviolet absorbers, A nickel complex ultraviolet absorber, a hindered amine, etc. are mentioned, These 1 type (s) or 2 or more types can be used.

  The thermoplastic resin layer composition of the present invention can be mixed using a known mixing device, and examples of the mixing device include a Banbury mixer, a kneader, and an extruder. Moreover, it can be formed into a sheet using a known apparatus, for example, a roll processing apparatus such as a calendar apparatus, an extruder, an inflation apparatus, or the like.

  The thermoplastic resin layer of the present invention produced by the processing method as described above may be laminated with a backing cloth, a foamed layer, etc., and after the thermoplastic resin layer is crushed into chips, it is spread on the building sheet substrate. Then, thermocompression bonding may be performed. Moreover, it is good also as a marble pattern by a well-known method using 2 or more types of thermoplastic resin layer compositions of a different color tone.

  Furthermore, in order to improve the designability, printing may be performed by various methods or embossing may be performed. Although the anti-slip property can be improved by embossing, it is preferable to have a shape that does not impair the anti-stain property.

EXAMPLES The present invention will be described in more detail with reference to examples. Examples 2, 3, 4, and 6 are replaced with reference examples.
Each composition of Examples 1 to 6 shown in Table 1 and Comparative Examples 1 to 5 shown in Table 2 are kneaded at a roll temperature of 180 ° C. to prepare a sheet having a thickness of 0.4 mm, and cut into an A4 size for evaluation. Created a sheet. Evaluation was carried out for the following evaluation items by the following evaluation methods and evaluation criteria. The evaluation results are shown in Tables 1 and 2. The walking test conducted in the evaluation of anti-slip property, particle drop-out property, and contamination property is a test in which 10 testers actually walk on the evaluation sheet for 5 minutes while suddenly stopping and changing direction. A 5-minute walking test with 10 people is defined as one cycle.
[Evaluation method and evaluation criteria]
<Slip resistance>
Six sheets for evaluation prepared from the respective formulations of Examples and Comparative Examples were arranged and laid on the floor, and a walking test when wet was performed for one cycle, and the feeling of walking was evaluated.
○: Easy to walk without slipping.
×: Risk of slipping and falling.
<Particle shedding>
Six evaluation sheets prepared from the respective formulations of Examples and Comparative Examples were arranged and laid on the floor surface, a walking test was performed for 10 cycles, and the degree of particle dropping was visually evaluated.
○: Dropping of particles is not observed.
X: Particles fall off and slip resistance is impaired.
<Contamination>
Six evaluation sheets prepared from the respective formulations of Examples and Comparative Examples were arranged on each floor and laid on the floor. A walking test was performed for 10 cycles, and the degree of dirt on the sheet surface was visually evaluated.
○: Slight dirt is observed, but there is no problem in appearance.
X: Dirt is conspicuous and the appearance is impaired.
<Drainage>
An evaluation sheet prepared from each formulation of Examples and Comparative Examples was attached to an iron plate having an inclination of 1.5 °, 3 ml of water was dropped, and the speed of drainage and the formation of polka dots were evaluated.
○: No polka dots are generated and drainage is fast.
×: Polka dots are generated and drainage is not performed

熱可塑性樹脂１ ：ＰＶＣ（重合度：１０００）
熱可塑性樹脂２ ：ＥＶＡ（酢酸ビニル含有量：２０％、ＭＩ：８．０）
界面活性剤１ ：アニオン性界面活性剤
（ミヨシ油脂株式会社製 ダスパー８０２Ｄ）
界面活性剤２ ：ノニオン性界面活性剤
（東邦化学工業株式会社製アンステックスＭＧ−１００）
合成樹脂粒状体１：架橋アクリル（架橋度：８０％、粒径：１００μｍ）
合成樹脂粒状体２：架橋ＰＶＣ （架橋度：２０％、粒径：１０μｍ）
合成樹脂粒状体３：架橋アクリル（架橋度：４０％、粒径：５μｍ）
合成樹脂粒状体４：架橋ＰＶＣ（架橋度：１００％、粒径：２０μｍ）
合成樹脂粒状体５：架橋ＰＶＣ（架橋度：５％、粒径：２０μｍ）

Thermoplastic resin 1: PVC (degree of polymerization: 1000)
Thermoplastic resin 2: EVA (vinyl acetate content: 20%, MI: 8.0)
Surfactant 1: Anionic surfactant
(Dusper 802D manufactured by Miyoshi Oil & Fat Co., Ltd.)
Surfactant 2: Nonionic surfactant
(Anstex MG-100 manufactured by Toho Chemical Industry Co., Ltd.)
Synthetic resin granules 1: Cross-linked acrylic (degree of cross-linking: 80%, particle size: 100 μm)
Synthetic resin granular material 2: cross-linked PVC (degree of cross-linking: 20%, particle size: 10 μm)
Synthetic resin granular material 3: Cross-linked acrylic (degree of cross-linking: 40%, particle size: 5 μm)
Synthetic resin granular material 4: Cross-linked PVC (cross-linking degree: 100%, particle size: 20 μm)
Synthetic resin granular material 5: cross-linked PVC (degree of cross-linking: 5%, particle size: 20 μm)

  By incorporating 5.0 to 70 parts by weight of a synthetic resin granule having a crosslinking degree of 15 to 95% into 100 parts by weight of a thermoplastic resin, the building sheet of the present invention, as shown in Examples 1 to 6, It can be seen that each performance of anti-slip property, particle detachment property, and contamination property is excellent, and when the cross-linking degree or content of the synthetic resin granule exceeds the range of the present invention as in Comparative Examples 1 to 5, the anti-slip property is obtained. It can be seen that any one of the particle detachability and contamination performance deteriorates.

  Moreover, as shown in Examples 2-6, it turns out that it is excellent in drainage property by adding surfactant.

  According to the present invention, even if the surface is substantially smooth, a building sheet having excellent slip resistance and antifouling properties can be obtained, and it also has drainage properties. Therefore, schools, hospitals, condominiums, commercial buildings, It can be widely used for outdoor flooring of buildings such as stores and houses.

Cross section

Explanation of symbols

1 Thermoplastic resin layer 2 Cross-linked granular material 3 Backing cloth

Claims (3)

A thermoplastic resin layer containing 5.0 to 70 parts by weight of a synthetic resin granule having 100 parts by weight of a thermoplastic resin and a particle size of 10 to 90 μm and a crosslinking degree of 15 to 95% is used as a surface layer. Architectural sheet made of thermoplastic resin. 2. The thermoplastic resin building according to claim 1, wherein the thermoplastic resin is polyvinyl chloride, and the synthetic resin granules are at least one selected from crosslinked PVC and crosslinked acrylic. Sheet. The thermoplastic resin building according to claim 1 or 2, wherein a surfactant is added to the thermoplastic resin layer in an amount of 0.3 to 3.0 parts by weight with respect to 100 parts by weight of the thermoplastic resin. Sheet.

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