Resin composition, granules and applications thereof, and textilene textiles

Abstract

The present invention relates to the field of polymer materials technology, and specifically to a resin composition, granules thereof, applications thereof, and textilene textiles. The composition comprises, based on the total weight of the composition, 85%-98% ethylene-vinyl acetate copolymer, 1%-15% silane coupling agent, 0.01%-0.1% ultraviolet absorber, 0.05%-0.3% light stabilizer, and 0.05%-1% antioxidant. The resin composition provided by the present invention has the advantages of good processability, good flexibility, good adhesion, safety, environmental protection, and non-toxicity. The resin composition is particularly suitable for use in the preparation of textilene textiles, exhibiting good adhesion to polyester / polypropylene yarns. The resulting textilene textiles have the advantages of good processability, good flexibility, excellent mechanical properties, safety, environmental protection, and non-toxicity, and have broad application prospects in the field of textilene textile applications.

Description

Technical Field

[0001] The invention relates to the technical field of polymer materials, in particular to a resin composition, granules and applications thereof, and textilene textiles. Background Art

[0002] Textilene is a specialty textile produced on shuttleless looms. It utilizes a composite yarn with a special sheath structure, known as a core-sheath yarn. The core is made of high-strength polyester industrial filament or polypropylene filament, while the sheath is most commonly made of PVC (polyvinyl chloride). The polyester or polypropylene filament is then stretched and coated, then stretched and cooled to form a smooth, waterproof, and oil-resistant composite yarn. The warp yarn is formed into a weaving beam using an intelligent warping machine. Without sizing, it is woven directly onto the loom into a web, which is then finished into the final product. It is widely used in a variety of applications, including fabrics for beach chairs, table mats, carpets, parasols, curtains, and more.

[0003] However, since PVC needs to be added with various plasticizers, anti-aging agents and other toxic auxiliary materials during processing to enhance its fluidity, softness, ductility and other properties, its products are environmentally friendly and are especially not suitable for applications in food or contact with the human body. Summary of the Invention

[0004] The present invention aims to replace the PVC material currently commonly used in textilene textile coatings and provides a resin composition and pellets thereof. The resin composition comprises an ethylene-vinyl acetate copolymer. The resin composition is used in textilene textiles and has the advantages of good processing performance, good softness, good adhesion to polyester / polypropylene yarns, and safety, environmental protection and non-toxicity.

[0005] According to a first aspect of the present invention, the present invention provides a resin composition, based on the total weight of the composition, the composition comprises:

[0006] Ethylene-vinyl acetate copolymer 85%-98%, silane coupling agent 1%-15%, UV absorber 0.01%-0.1%, light stabilizer 0.05%-0.3%, antioxidant 0.05%-1%.

[0007] According to a second aspect of the present invention, the present invention provides a resin composition pellet, which is prepared from the above resin composition.

[0008] According to a third aspect of the present invention, the present invention provides a use of the aforementioned resin composition and the aforementioned resin composition granules in the preparation of textilene textiles.

[0009] According to a fourth aspect of the present invention, the present invention provides a Textilene textile, which is prepared from the aforementioned resin composition pellets.

[0010] Compared with the prior art, the resin composition provided by the present invention has the advantages of good processability, good softness, good adhesion, safety, environmental protection and non-toxicity; the resin composition is particularly suitable for the preparation of textilene textiles, and has good adhesion with polyester yarn / polypropylene yarn. The prepared textilene textiles have the advantages of good processability, good softness, excellent mechanical properties, safety, environmental protection and non-toxicity, and have broad application prospects in the application field of textilene textiles. DETAILED DESCRIPTION

[0011] The endpoints of the ranges and any values disclosed herein are not limited to the precise ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoints of each range, the endpoints of each range and individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges, which should be considered to be specifically disclosed herein.

[0012] According to a first aspect of the present invention, there is provided a resin composition having the advantages of good processability, good flexibility, good adhesion, safety, environmental protection and non-toxicity. The composition comprises, based on the total weight of the composition:

[0013] Ethylene-vinyl acetate copolymer 85%-98%, silane coupling agent 1%-15%, ultraviolet absorber 0.01%-0.1%, light stabilizer 0.05%-0.3%, antioxidant 0.05%-1%. The resin composition provided by the present invention has the advantages of good processability, good flexibility, good adhesion, safety, environmental protection and non-toxicity due to the synergistic effect of the various components in the resin composition.

[0014] According to a preferred embodiment of the present invention, based on the total weight of the composition, the composition includes: 90%-98% of ethylene-vinyl acetate copolymer, 1%-10% of silane coupling agent, 0.02%-0.06% of ultraviolet absorber, 0.1%-0.2% of light stabilizer, and 0.1%-0.8% of antioxidant; preferably, the composition includes 95%-98% of ethylene-vinyl acetate copolymer, 1%-5% of silane coupling agent, 0.03%-0.05% of ultraviolet absorber, 0.12%-0.16% of light stabilizer, and 0.2%-0.5% of antioxidant; the aforementioned composition has better processability, softness and adhesion.

[0015] According to the present invention, the vinyl acetate content of the ethylene-vinyl acetate copolymer is 8%-30%, preferably 10%-25%, and more preferably 10%-20%. The above composition has better processability, flexibility and adhesion.

[0016] According to the present invention, the melt mass flow rate of the ethylene-vinyl acetate copolymer at 190°C under a load of 2.16 kg is 10-50 g / 10 min, preferably 15-40 g / 10 min, and more preferably 20-30 g / 10 min. The composition has better processability, flexibility, and adhesion.

[0017] According to the present invention, the type of the ultraviolet absorber can be selected from a wide range and can be a conventional ultraviolet absorber in the field. Preferably, the ultraviolet absorber is a benzophenone ultraviolet absorber; more preferably, the ultraviolet absorber is selected from at least one of ultraviolet absorber UV-531, ultraviolet absorber UV-9 and ultraviolet absorber UV-0; the use of the aforementioned ultraviolet absorber further improves the anti-ultraviolet performance and mechanical properties of the composition.

[0018] According to the present invention, the type of silane coupling agent can be selected from a wide range and can be a conventional silane coupling agent in the art. Preferably, the silane coupling agent is selected from at least one of γ-methacryloxypropyltrimethoxysilane (KH570), γ-(2,3-epoxypropoxy)propyltrimethylsilane (KH560) and γ-aminopropyltriethoxysilane (KH560).

[0019] The present invention allows for a wide range of optional types of the light stabilizer, such as hindered amine light stabilizers. Preferably, the light stabilizer is selected from at least one of light stabilizer 744, light stabilizer 944, and light stabilizer 770. The aforementioned light stabilizers are used to further enhance the UV shielding or absorption performance and mechanical properties of the composition.

[0020] In the present invention, the antioxidant has a wide range of optional ranges. Optionally, the antioxidant is a phenolic antioxidant and / or a phosphite antioxidant; preferably, the antioxidant is selected from antioxidant 1010 (tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester), antioxidant 168 (tris(2,4-di-tert-butylphenyl)phosphite), antioxidant 626 (bis(2,4-di-tert-butylphenol)pentaerythritol diphosphite), antioxidant 1076 (β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid n-octadecyl ester), antioxidant 3114 (1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanuric acid), antioxidant 330 (1,3,5- At least one of trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene) and antioxidant PEP-36 (bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite); further improving the antioxidant properties and mechanical properties of the composition.

[0021] According to a preferred embodiment of the present invention, the antioxidant is a mixture of antioxidant 1010 and antioxidant 168; preferably, the weight ratio of antioxidant 1010 to antioxidant 168 is 1:(1-2); further improving the antioxidant properties and mechanical properties of the composition.

[0022] According to a second aspect of the present invention, the present invention provides a resin composition pellet, which is prepared from the above composition.

[0023] According to a preferred embodiment of the present invention, the Shore hardness of the resin composition pellets is 30-55, which is conducive to achieving better softness of the resin composition pellets.

[0024] According to a preferred embodiment of the present invention, the tensile strength of the resin composition pellets is 9.5-15 MPa, preferably 12-15 MPa, which is conducive to achieving better mechanical properties of the resin composition pellets.

[0025] According to a preferred embodiment of the present invention, the heat-sealing strength of the resin composition pellets is 8-15 N / 15 mm, preferably 9.1-10.6 N / 15 mm, which is conducive to achieving better adhesion of the resin composition pellets.

[0026] According to a preferred embodiment of the present invention, the melt stretching tension of the resin composition pellets is 0.08-0.15 MPa, preferably 0.085-0.11 MPa, which is conducive to achieving better processability of the resin composition pellets.

[0027] According to a preferred embodiment of the present invention, the resin composition pellets are prepared by subjecting the composition to a first molding process; the first molding process is extrusion molding, wherein the materials are sequentially subjected to the steps of uniform mixing, heating and melting, and extrusion granulation.

[0028] According to a preferred embodiment of the present invention, the extrusion molding extrusion conditions include: the rotation speed of the extruder is 200-400 rpm, the extruder includes at least five sections, the vacuum degree of each section is independently 0.02 MPa-0.09 MPa, and the temperature of each section is independently 150-200 ° C; it is convenient to control the extrusion molding operation and improve the processability of the resin composition pellets.

[0029] According to the present invention, preferably, along the conveying direction of the material, the temperature of each section is 150-160°C, 150-170°C, 160-200°C, 160-200°C and 150-170°C in sequence; this is beneficial to controlling the extrusion molding operation and improving the processability of the resin composition pellets.

[0030] According to a preferred embodiment of the present invention, the extruder is a twin-screw extruder; preferably, the aspect ratio of the twin-screw extruder is (30-53):1; this is beneficial for controlling the extrusion molding operation and improving the processability of the resin composition pellets.

[0031] The present invention has no particular limitation on the particle size of the resin pellets, as long as it is easy to process. Preferably, the average particle size of the resin composition pellets is 0.5-1.5 mm. Within the aforementioned particle size range, the resin is easily molded in the textilene textile and the processability of the resin composition pellets is improved.

[0032] According to a third aspect of the present invention, the present invention provides the use of the composition and the composition granules in the preparation of Textilene textiles. The resin composition and granules are used for Textilene textiles and have good adhesion with polyester yarn / polypropylene yarn. The prepared Textilene textiles have the advantages of good processability, good softness, excellent mechanical properties, safety, environmental protection and non-toxicity.

[0033] According to a fourth aspect of the present invention, the present invention provides a Textilene textile, wherein the coating of the Textilene textile is prepared by subjecting the composition pellets to a second molding process.

[0034] According to the present invention, in order to facilitate the operation of the second molding and improve the performance of the fabric, preferably, the second molding includes coating extrusion molding, and the coating extrusion molding conditions include: the extrusion temperature of the single-screw extruder is 150-200°C, and the speed of the single-screw extruder is 100-300rpm;

[0035] According to a preferred embodiment of the present invention, the coating extrusion molding extrusion temperature is 150-180° C., and the speed of the single-screw extruder is 180-220 rpm, which is beneficial to improving the mechanical properties of the textilene textile.

[0036] According to a preferred embodiment of the present invention, the aspect ratio of the single-screw extruder is (30-53): 1, which is beneficial to improving the mechanical properties of the textilene textile.

[0037] According to a preferred embodiment of the present invention, the thickness of the coating is controlled to be 30-100 μm by controlling the conditions of the second molding, which is beneficial to improving the mechanical properties of the textilene textile.

[0038] The present invention will be described in detail below by way of examples and comparative examples, but the present invention is not limited thereto. In the following examples and comparative examples, unless otherwise specified, the materials used can be obtained commercially.

[0039] In Examples 1-6, ethylene-vinyl acetate copolymer (EVA) was purchased from Taiwan Polymer Co., Ltd. in Taiwan, China, with the brand name EVA18251. The main parameters were a melt flow rate of 22 g / 10 min and a vinyl acetate content of 18%.

[0040] Silane coupling agent KH550 was purchased from Qufu Chenguang Chemical Co., Ltd.

[0041] Light stabilizer was purchased from Wuhan Yuancheng Gongchuang Technology Co., Ltd. with brand number 744.

[0042] Antioxidant 1010 was purchased from Shijiazhuang Jiatuo Chemical Technology Co., Ltd. with the brand name 1010.

[0043] Antioxidant 168 was purchased from Shijiazhuang Jiatuo Chemical Technology Co., Ltd. with the brand name 168.

[0044] The ultraviolet absorber was purchased from Weihai Huaen Rubber and Plastic New Materials Co., Ltd. with the brand name UV-9.

[0045] The specific compositions of the compositions in the following examples and comparative examples are shown in Table 1 below.

[0046]

[0047]

[0048] The compositions of Examples 1-6 and Comparative Examples 1-2 were placed in a high-speed mixer and mixed for 10 minutes according to the proportions of the components of the composition in Table 1 to obtain a mixture. The obtained mixture was then added to a twin-screw extruder and coupled to extrude to obtain composite pellets. The process conditions of the twin-screw extruder were as follows: along the conveying direction of the material, the temperatures of each section were 150-160° C., 160-170° C., 180-190° C., 170-180° C., and 160-170° C., respectively; the vacuum degree of each section was 0.05 MPa; and the speed of the extruder was 200-300 rpm.

[0049] Example 7

[0050] The difference from Example 1 is that the vinyl acetate content is 25%, and the other experimental conditions are the same as Example 1.

[0051] Example 8

[0052] The difference from Example 1 is that the vinyl acetate content is 8%, and the other experimental conditions are the same as Example 1.

[0053] Example 9

[0054] Different from Example 1, the melt mass flow rate of EVA at 190° C. and a load of 2.16 kg is 18 g / 10 min. Other experimental conditions are the same as in Example 1.

[0055] Example 10

[0056] Different from Example 1, the melt mass flow rate of EVA at 190° C. and a load of 2.16 kg is 10 g / 10 min. Other experimental conditions are the same as those in Example 1.

[0057] In Examples 1-10 and Comparative Examples 1-2, the following tests were performed on the coating materials for textilene textiles:

[0058] 1. Softness: The Shore hardness of the coating material is used to characterize its softness. Shore hardness is tested according to the standard GB / T 2411-2008. The lower the Shore hardness, the softer the coating material.

[0059] 2. Tensile properties: The tensile strength and elongation at break of the coating material are used to characterize the tensile properties of the coating material. Tests are conducted in accordance with the standard GB / T 1040.2-2006. The greater the tensile strength, the better the tensile properties.

[0060] 3. Adhesion performance: The composite material was made into a 50 μm cast film, which was then heat-sealed with a PET film at 140°C, 0.3 MPa, and 2 seconds. The heat-sealing strength was then tested according to standard QB / T 2358-98.

[0061] 4. Processing performance: The melt tensile test device on the capillary rheometer was used to measure the melt tensile tension of each sample at 170°C and the pulling speed at tensile fracture. The die diameter used was 2mm, the inlet angle was 180°, the aspect ratio of the long die was 10, the plunger speed used during the test was 5mm / min, the pulling speed was 10m / min at the initial speed, 30m / min at the end. 2 The acceleration is uniform until it breaks.

[0062] 5. Antioxidant performance: GB / T 19466.6-2009 was used to test the oxidation induction time and the antioxidant performance of the standard composition. The test temperature was 190°C.

[0063] The performance test results of Examples 1-10 and Comparative Examples 1-2 are shown in Table 2.

[0064] Table 2

[0065]

[0066]

[0067] As can be seen from Table 2, compared with Comparative Example 1 or 2, the resin compositions of Examples 1-10 of the present invention all have the advantages of good processability, good softness, good adhesion, good flexibility and good antioxidant properties, and have broad application prospects in the application field of textilene textiles.

[0068] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, various simple variations of the technical solution of the present invention may be made, including combining the various technical features in any other appropriate manner. These simple variations and combinations should also be regarded as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A resin composition for textilene textiles, characterized in that: Based on the total weight of the composition, the composition comprises: Ethylene-vinyl acetate copolymer 85%-98%, silane coupling agent 1%-15%, UV absorber 0.01%-0.1%, light stabilizer 0.05%-0.3%, antioxidant 0.05%-1%.

2. The composition according to claim 1, wherein Based on the total weight of the composition, the composition comprises: Ethylene-vinyl acetate copolymer 90%-98%, silane coupling agent 1%-10%, ultraviolet absorber 0.02%-0.06%, light stabilizer 0.1%-0.2%, antioxidant 0.1%-0.8%.

3. The composition according to claim 1, wherein Based on the total weight of the composition, the composition comprises 95%-98% of ethylene-vinyl acetate copolymer, 1%-5% of a silane coupling agent, 0.03%-0.05% of an ultraviolet absorber, 0.12%-0.16% of a light stabilizer, and 0.2%-0.5% of an antioxidant.

4. The composition according to any one of claims 1 to 3, wherein The ethylene-vinyl acetate copolymer has a vinyl acetate content of 8%-30%; and / or The melt mass flow rate of the ethylene-vinyl acetate copolymer at 190° C. and under a load of 2.16 kg is 10-50 g / 10 min.

5. The composition according to claim 4, wherein The ethylene-vinyl acetate copolymer has a vinyl acetate content of 10%-25%; and / or The melt mass flow rate of the ethylene-vinyl acetate copolymer at 190° C. and under a load of 2.16 kg is 15-40 g / 10 min.

6. The composition according to claim 4, wherein The ethylene-vinyl acetate copolymer has a vinyl acetate content of 10%-20%; and / or The melt mass flow rate of the ethylene-vinyl acetate copolymer at 190° C. and under a load of 2.16 kg is 20-30 g / 10 min.

7. The composition according to any one of claims 1 to 3, wherein The silane coupling agent is selected from at least one of γ-methacryloxypropyltrimethoxysilane, γ-(2,3-epoxypropyloxy)propyltrimethylsilane and γ-aminopropyltriethoxysilane; The ultraviolet absorber is selected from benzophenone ultraviolet absorbers, and the ultraviolet absorber is selected from at least one of ultraviolet absorber UV-531, ultraviolet absorber UV-9 and ultraviolet absorber UV-0; and / or The light stabilizer is a hindered amine light stabilizer, and the light stabilizer is selected from at least one of light stabilizer 744, light stabilizer 944 and light stabilizer 770; and / or The antioxidant is a phenolic antioxidant and / or a phosphite antioxidant, and the antioxidant is selected from at least one of antioxidant 1010, antioxidant 168, antioxidant 626, antioxidant 1076, antioxidant 3114, antioxidant 330 and antioxidant PEP-36.

8. The composition according to claim 7, wherein The antioxidant is a mixture of antioxidant 1010 and antioxidant 168, and the weight ratio of antioxidant 1010 to antioxidant 168 is 1:(1-2).

9. A resin composition pellet, characterized in that: The resin composition pellets are prepared from the composition according to any one of claims 1 to 8.

10. The resin composition pellets according to claim 9, wherein The Shore hardness of the resin composition pellets is 30-55; and / or A tensile strength of 10-15 MPa; and / or Heat seal strength of 8.0-15N / 15mm; and / or The melt stretching tension is 0.08-0.15MPa.

11. The composition pellet according to claim 9 or 10, wherein: The resin composition pellets are prepared by the composition through a first molding process; the first molding process is extrusion molding, and the extrusion conditions include: the speed of the extruder is 200-400 rpm, the extruder includes at least five sections, the vacuum degree of each section is independently 0.02 MPa-0.09 MPa, and the temperature of each section is independently 150-200°C.

12. The composition pellet according to claim 11, wherein Along the conveying direction of the material, the temperatures of each section are 150-160℃, 150-170℃, 160-200℃, 160-200℃ and 150-170℃ respectively.

13. The composition pellet according to claim 11, wherein The extruder is a twin-screw extruder, and the aspect ratio of the twin-screw extruder is (30-53):1; and / or The average particle size of the resin composition pellets is 0.5-1.5 mm.

14. Use of the composition according to any one of claims 1 to 8 and the composition granules according to any one of claims 9 to 13 in the preparation of textilene textiles.

15. A textile fabric, characterized in that: The coating of the textilene textile is prepared by subjecting the composition pellets according to any one of claims 9 to 13 to a second molding process.

16. The textilene textile according to claim 15, wherein: The second molding includes coating extrusion molding, and the coating extrusion molding conditions include: the extrusion temperature of the single-screw extruder is 150-200° C., and the rotation speed of the single-screw extruder is 100-300 rpm.

17. The textilene textile according to claim 16, wherein: The extrusion temperature is 150-180°C and the speed of the single screw extruder is 180-220 rpm; and / or The single screw extruder has an aspect ratio of (30-53):1; and / or The thickness of the coating is 30-100 μm.

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