Special blow-molded floating body for offshore photovoltaic and preparation method of special blow-molded floating body

Abstract

The invention provides a blow-molded floating body special for offshore photovoltaic and a preparation method of the blow-molded floating body. The blow-molded floating body comprises an outer layer, a middle layer and an inner layer, the middle layer is prepared from the following raw materials in parts by weight: 80 to 100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05 to 0.2 part of toughening agent, 1 to 10 parts of fiber reinforced material, 10 to 30 parts of nano filler, 1 to 2 parts of coupling agent and 0.01 to 0.05 part of antioxidant. The fiber reinforced material and the nano filler are adopted in the middle layer of the blow-molded floating body, so that the strength of the floating body is improved, and the tensile strength of the floating body is improved; the self weight of the floating body is excellent, and the load of the water surface floating body system can be greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blow molding floating bodies, and particularly relates to a blow molding floating body special for offshore photovoltaics and a preparation method thereof. BACKGROUND

[0002] The blow molding floating body is an important component of a water surface photovoltaic power station, and its structure and performance directly affect the application of the water surface photovoltaic power station. At present, the blow molding floating bodies manufactured are mainly applied in inland lake water areas, and in the future, offshore photovoltaics will gradually develop into a main application site. Since the sea is larger in wind and wave, the floating body applied offshore needs to have tear resistance. SUMMARY

[0003] Therefore, the purpose of the application is to provide a blow molding floating body special for offshore photovoltaics and a preparation method thereof, which has high tensile strength and high load capacity.

[0004] The application provides a blow molding floating body special for offshore photovoltaics, which comprises an outer layer, a middle layer and an inner layer.

[0005] The preparation raw materials of the middle layer comprise 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of a toughening agent, 1-10 parts of a fiber reinforced material, 10-30 parts of a nano filler, 1-2 parts of a coupling agent and 0.01-0.05 parts of an antioxidant.

[0006] Preferably, the fiber reinforced material is selected from one or more of bamboo fiber, carbon fiber, glass fiber and basalt fiber.

[0007] Preferably, the nano filler is selected from one or more of montmorillonite, talcum powder and kaolin.

[0008] Preferably, the coupling agent is selected from a silane coupling agent and / or an aluminate coupling agent.

[0009] The toughening agent is selected from one or more of NBR, SBS and PU.

[0010] Preferably, the antioxidant in the preparation raw materials of the middle layer comprises a main antioxidant and an auxiliary antioxidant in a mass ratio of 1:0.95-1.05, the main antioxidant is 2,6-di-tert-butyl-p-cresol or 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, and the auxiliary antioxidant is triphosphite or dilauryl thiodipropionate.

[0011] Preferably, the preparation raw materials of the outer layer and the inner layer both comprise 100 parts of high-density polyethylene resin, 0.1-0.5 parts of an antioxidant, 0.04-0.1 parts of a light stabilizer, 0.04-0.1 parts of a light absorber and 6-7 parts of color master batch.

[0012] Preferably, the antioxidant comprises a primary antioxidant and a secondary antioxidant; the primary antioxidant is a hindered phenolic antioxidant and / or a lactone type antioxidant; the secondary antioxidant is a phosphite antioxidant and / or a sulphide type antioxidant;

[0013] The light stabilizer is selected from one or more of the group consisting of an ortho-hydroxybenzophenone light stabilizer, a salicylate light stabilizer, an ortho-hydroxybenzotriazole light stabilizer and a hindered amine light stabilizer;

[0014] The light absorbing agent is a benzotriazole;

[0015] The color master batch is selected from DuPont CAS13463 or Longbai Group LR-108.

[0016] The application provides a preparation method of the offshore photovoltaic special blow molding float.

[0017] The fiber reinforced material, the nano filler and the coupling agent are fully mixed to obtain a mixture of modified fiber composite material and modified nano filler; the acrylonitrile-butadiene-styrene copolymer, the mixture of modified fiber composite material and modified nano filler, the antioxidant and the toughening agent are mixed to obtain a second mixture;

[0018] The high-density polyethylene resin, the antioxidant, the light stabilizer, the light absorbing agent and the color master batch are mixed to obtain a third mixture;

[0019] The second mixture and the third mixture are respectively granulated by a double screw extruder to obtain second mixture granules and third mixture granules;

[0020] The second mixture granules and the third mixture granules are transported to a multi-layer blow molding machine for blow molding to obtain the offshore photovoltaic special blow molding float.

[0021] Preferably, the first section temperature of the extrusion granulation is 140-160 DEG C, the second section temperature is 160-180 DEG C, the third section temperature is 185-220 DEG C and the fourth section temperature is 170-190 DEG C.

[0022] Preferably, the blow molding ratio of the outer layer, the middle layer and the inner layer is 1:1:1.

[0023] The application provides a special blow molding floating body for offshore photovoltaic, which comprises an outer layer, a middle layer and an inner layer; and the preparation raw materials of the middle layer comprise 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of toughening agent, 1-10 parts of fiber reinforced material, 10-30 parts of nano filler, 1-2 parts of coupling agent and 0.01-0.05 parts of antioxidant. DETAILED DESCRIPTION

[0024] The application provides a special blow molding floating body for offshore photovoltaic, which comprises an outer layer, a middle layer and an inner layer;

[0025] The preparation raw materials of the middle layer comprise 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of toughening agent, 1-10 parts of fiber reinforced material, 10-30 parts of nano filler, 1-2 parts of coupling agent and 0.01-0.05 parts of antioxidant.

[0026] The special blow molding floating body for offshore photovoltaic comprises a three-layer structure, i.e., an outer layer, a middle layer and an inner layer, and the inner layer is attached to the middle layer and the middle layer is attached to the outer layer.

[0027] The preparation raw materials of the middle layer comprise 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of toughening agent, 1-10 parts of fiber reinforced material, 10-30 parts of nano filler, 1-2 parts of coupling agent and 0.01-0.05 parts of antioxidant.

[0028] In the application, the acrylonitrile-butadiene-styrene copolymer (ABS) is 80-100 parts, specifically 80 parts, 82 parts, 84 parts, 86 parts, 88 parts, 90 parts, 92 parts, 94 parts, 96 parts, 98 parts or 100 parts; and the melt flow rate of the acrylonitrile-butadiene-styrene copolymer under 220℃ / 10kg is 0.5-5 g / 10min.

[0029] In the application, the preparation raw materials of the middle layer comprise 0.05-0.2 parts of toughening agent, specifically 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts, 0.10 parts, 0.11 parts, 0.12 parts, 0.13 parts, 0.14 parts, 0.15 parts, 0.16 parts, 0.17 parts, 0.18 parts, 0.19 parts or 0.2 parts; and the toughening agent in the application is selected from one or more of nitrile rubber (NBR), styrene-butadiene rubber (SBS) and polyurethane (PU).

[0030] In the present application, the preparation raw materials of the middle layer include 1-10 parts of fiber reinforced material, and the amount is specifically 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts. The fiber reinforced material is selected from one or more of bamboo fiber, carbon fiber, glass fiber and basalt fiber.

[0031] In the present application, the preparation raw materials of the middle layer include 10-30 parts of nano filler, and the amount is specifically 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts or 30 parts. The nano filler is selected from one or more of montmorillonite, talc powder and kaolin.

[0032] In the present application, the preparation raw materials of the middle layer include 1-2 parts of coupling agent, and the amount is specifically 1 part, 1.1 part, 1.2 part, 1.3 part, 1.4 part, 1.5 part, 1.6 part, 1.7 part, 1.8 part, 1.9 part or 2.0 part. The coupling agent is selected from silane coupling agent and / or aluminate coupling agent.

[0033] In the present application, the preparation raw materials of the middle layer include 0.01-0.05 parts of antioxidant, and the amount is specifically 0.01 part, 0.02 part, 0.03 part, 0.04 part or 0.05 part. The antioxidant includes primary antioxidant and secondary antioxidant with a mass ratio of 1:0.95-1.05, and the mass ratio is preferably 1:1; the primary antioxidant is 2,6-di-tert-butyl-p-cresol (antioxidant 264) or 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (antioxidant 330); and the secondary antioxidant is triphosphite (TBP) or dilauryl thiodipropionate (DLTDP).

[0034] In the embodiment of the present application, the preparation raw materials of the middle layer include 80 parts of ABS resin, 5 parts of glass fiber, 20 parts of nano filler, 2 parts of vinyl triethoxysilane, 0.005 parts of primary antioxidant 330, 0.005 parts of secondary antioxidant triphosphite and 0.05 parts of toughening agent;

[0035] or include 82 parts of ABS resin, 4 parts of glass fiber, 16 parts of montmorillonite, 1.6 parts of vinyl triethoxysilane, 0.01 parts of primary antioxidant 330, 0.01 parts of secondary antioxidant triphosphite and 0.09 parts of toughening agent NBR;

[0036] or include 86 parts of ABS resin, 2 parts of glass fiber, 14 parts of montmorillonite, 1.4 parts of vinyl triethoxysilane, 0.02 parts of primary antioxidant 330, 0.02 parts of secondary antioxidant triphosphite and 0.15 parts of toughening agent NBR;

[0037] or including 90 parts of ABS resin, 1 part of glass fiber, 10 parts of montmorillonite, 1 part of vinyl triethoxysilane, 0.025 parts of primary antioxidant 330, auxiliary antioxidant triphosphite 0.025 parts and 0.2 parts of toughening agent NBR;

[0038] or including 80 parts of ABS resin, 5 parts of glass fiber, 20 parts of montmorillonite, 2 parts of vinyl triethoxysilane, 0.005 parts of primary antioxidant 330, auxiliary antioxidant triphosphite 0.005 parts and 0.05 parts of toughening agent NBR;

[0039] or including 80 parts of ABS resin, 5 parts of glass fiber, 30 parts of montmorillonite, 2 parts of vinyl triethoxysilane, 0.005 parts of primary antioxidant 330, auxiliary antioxidant triphosphite 0.005 parts and 0.05 parts of toughening agent NBR.

[0040] The preparation raw materials of the outer layer and the inner layer in the application include 100 parts of high-density polyethylene resin, 0.1-0.5 parts of antioxidant, 0.04-0.1 parts of light stabilizer, 0.04-0.1 parts of light absorber and 6-7 parts of color master batch.

[0041] In the application, the antioxidant in the outer layer and the inner layer includes primary antioxidant and auxiliary antioxidant; the primary antioxidant is hindered phenolic antioxidant and / or lactone type antioxidant; the auxiliary antioxidant is phosphite antioxidant and / or sulfur ester type antioxidant; specifically, the primary antioxidant is 2,6-di-tert-butyl-p-cresol or 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (antioxidant 330); the auxiliary antioxidant is triphosphite or dilauryl thiodipropionate; the light stabilizer is selected from one or more of o-hydroxybenzophenone type light stabilizer, salicylate type light stabilizer, o-hydroxybenzotriazole type light stabilizer and hindered amine type light stabilizer; the light absorber is benzotriazole type, preferably selected from UV-320, UV-P and the like. The color master batch is selected from DuPont CAS13463 or Longbai Group LR-108.

[0042] In the specific embodiment of the application, the preparation raw materials of the outer layer and the inner layer include 100 parts of high-density polyethylene resin, 0.3 parts of mixture of primary antioxidant 1010 and auxiliary antioxidant triphosphite with a mass ratio of 1:1, 0.04 parts of UV320 light absorber, 0.04 parts of light stabilizer decanedioic acid bis ester (Tinuvin 770) and 6.5 parts of DuPont CAS13463 color master batch.

[0043] The application provides a preparation method of the offshore photovoltaic special blow molding floating body.

[0044] The fiber reinforced material, nano filler and coupling agent are mixed sufficiently to obtain a mixture of modified fiber composite material and modified nano filler; the acrylonitrile-butadiene-styrene copolymer, the mixture of modified fiber composite material and modified nano filler, antioxidant and toughening agent are mixed to obtain a second mixture;

[0045] The high-density polyethylene resin, antioxidant, light stabilizer, light absorber and color master batch are mixed to obtain a third mixture;

[0046] The second mixture and the third mixture are respectively granulated by double screw extrusion to obtain second mixture granules and third mixture granules;

[0047] The second mixture granules and the third mixture granules are conveyed to a multi-layer blow molding machine to blow mold to obtain the offshore photovoltaic special blow molding float.

[0048] In the present application, the first mixture is obtained under stirring conditions, the stirring speed is 100-300 rpm, and the time is 25-35 min.

[0049] In the present application, the first section temperature of extrusion granulation is 140-160 DEG C, the second section temperature is 160-180 DEG C, the third section temperature is 185-220 DEG C, and the fourth section temperature is 170-190 DEG C.

[0050] The present application preferably adopts a three-layer blow molding machine to blow mold, and the blow molding ratio of the outer layer, the middle layer and the inner layer is 1:1. The outer layer and the inner layer are both modified HDPE, i.e. the third mixture granules; the middle layer is modified ABS, i.e. the second mixture granules.

[0051] The density of the offshore photovoltaic special blow molding float is tested according to the provisions of GB / T 1033.1, A method (immersion method) is adopted, the sample mass is greater than 1 g, the immersion liquid is selected from anhydrous ethanol (density 0.7893 g / cm 3 ), and the density of the detected material is read out by a density meter.

[0052] The tensile strength is tested according to the provisions of GB / T 1040-2006, the sample is type 5, and the test speed is 50 mm / min.

[0053] The hardness is tested according to the provisions of GB / T 531-2008.

[0054] In order to further illustrate the present application, a kind of offshore photovoltaic special blow molding float and the preparation method thereof provided by the present application are described in detail below in conjunction with examples, but they cannot be understood as limiting the scope of protection of the present application.

[0055] Examples 1-6

[0056] The middle layer raw material is prepared according to the proportion in Table 1.

[0057] Table 1

[0058]

[0059] The preparation method of the offshore photovoltaic special blow molding floating body comprises the following steps:

[0060] The fiber reinforced material, nanofiller montmorillonite and silane coupling agent are fully mixed in a high-speed mixer, the set rotating speed is 300 rpm, and the mixing time is 30 min, to obtain a mixture of modified fiber composite material and modified nanofilled material; the acrylonitrile-butadiene-styrene copolymer (ABS resin), the mixture of modified fiber composite material and modified nanofilled material, antioxidant and toughening agent are mixed to obtain a second mixture;

[0061] The high-density polyethylene resin 100 parts, the mixture of main antioxidant 1010 and auxiliary antioxidant triphosphite with a mass ratio of 1:1 0.3 parts, UV320 light absorber 0.04 parts, light stabilizer decanedioic acid bis ester (Tinuvin 770) 0.04 parts and Dupont CAS13463 color master batch 6.5 parts are mixed to obtain a third mixture;

[0062] The second mixture and the third mixture are respectively granulated by a double screw extruder, the first section temperature of the double screw is 155 DEG C, the second section temperature is 170 DEG C, the third section temperature is 210 DEG C, and the fourth section temperature is 180 DEG C, to obtain second mixture granules and third mixture granules;

[0063] The second mixture granules and the third mixture granules are conveyed to a three-layer blow molding machine for blow molding, the blow molding ratio of the outer layer, the middle layer and the inner layer is 1:1:1, to obtain the offshore photovoltaic special blow molding floating body.

[0064] Comparative Example 1

[0065] In the application, the ABS resin is used as the middle layer raw material, the types and amounts of the raw materials of the outer layer and the inner layer are the same as those in Example 1.

[0066] The floating bodies prepared in the examples and the comparative example are tested by using the above test method, and the results are shown in Table 2.

[0067] Table 2 Performance test results of the floating bodies prepared in the examples and the comparative example

[0068]

[0069] As shown in the above embodiments, the present invention provides a blow-molded float specifically for marine photovoltaic applications, comprising an outer layer, a middle layer, and an inner layer. The middle layer is prepared from raw materials including 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of toughening agent, 1-10 parts of fiber reinforcement material, 10-30 parts of nanofiller, 1-2 parts of coupling agent, and 0.01-0.05 parts of antioxidant. By using fiber reinforcement material and nanofiller in the middle layer of the blow-molded float, the present invention increases the strength of the float and improves its tensile strength; the float has a superior self-weight, which can significantly increase the load-bearing capacity of the surface floating system. Experimental results show that the density of the floats prepared in Examples 1-6 is 0.98-1.60 g / cm³. 3 Tensile strength is 50~80MPa; hardness is 72~87 Shore D.

[0070] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A blow-molded floating body specifically for marine photovoltaic applications, characterized in that, Includes outer layer, middle layer and inner layer; The raw materials for preparing the middle layer include 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 0.05-0.2 parts of toughening agent, 1-10 parts of fiber reinforcement material, 10-30 parts of nanofiller, 1-2 parts of coupling agent and 0.01-0.05 parts of antioxidant.

2. The blow-molded floating body for marine photovoltaic applications according to claim 1, characterized in that, The fiber reinforcement material is selected from one or more of bamboo fiber, carbon fiber, glass fiber and basalt fiber.

3. The blow-molded floating body for marine photovoltaic applications according to claim 1, characterized in that, The nanofiller is selected from one or more of montmorillonite, talc, and kaolin.

4. The blow-molded floating body for marine photovoltaic applications according to claim 1, characterized in that, The coupling agent is selected from silane coupling agents and / or aluminate coupling agents; The toughening agent is selected from one or more of NBR, SBS and PU.

5. The blow-molded floating body for marine photovoltaic applications according to claim 1, characterized in that, The antioxidants in the intermediate layer preparation raw materials include a primary antioxidant and a secondary antioxidant in a mass ratio of 1:0.95~1.

05. The primary antioxidant is 2,6-di-tert-butyl-p-cresol or 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene; the secondary antioxidant is triphosphite or dilauryl thiodipropionate.

6. The blow-molded floating body for marine photovoltaic applications according to claim 1, characterized in that, The raw materials for preparing the outer and inner layers both include 100 parts of high-density polyethylene resin, 0.1 to 0.5 parts of antioxidant, 0.04 to 0.1 parts of light stabilizer, 0.04 to 0.1 parts of light absorber, and 6 to 7 parts of color masterbatch.

7. The blow-molded floating body for marine photovoltaic applications according to claim 6, characterized in that, The antioxidants include primary antioxidants and secondary antioxidants; the primary antioxidants are hindered phenolic antioxidants and / or lactone-type antioxidants; the secondary antioxidants are phosphite antioxidants and / or thioester-type antioxidants. The light stabilizer is selected from one or more of o-hydroxybenzophenone light stabilizers, salicylate light stabilizers, o-hydroxybenzotriazole light stabilizers, and hindered amine light stabilizers; The light absorber is a benzotriazole class; The masterbatch is selected from DuPont CAS13463 or Longbai Group LR-108.

8. A method for preparing a blow-molded float for marine photovoltaic applications according to any one of claims 1 to 7, comprising the following steps: The fiber-reinforcing material, nanofiller, and coupling agent are thoroughly mixed to obtain a mixture of modified fiber composite material and modified nanofiller; the acrylonitrile-butadiene-styrene copolymer, the mixture of modified fiber composite material and modified nanofiller, antioxidant, and toughening agent are mixed to obtain a second mixture; High-density polyethylene resin, antioxidant, light stabilizer, light absorber and color masterbatch are mixed to obtain a third mixture; The second mixture and the third mixture are respectively granulated by twin-screw extrusion to obtain granules of the second mixture and granules of the third mixture; The second and third mixture granules are fed into a multi-layer blow molding machine to obtain a blow-molded float for marine photovoltaic applications.

9. The preparation method according to claim 8, characterized in that, The temperature of the first stage of extrusion granulation is 140~160℃, the temperature of the second stage is 160~180℃, the temperature of the third stage is 185~220℃, and the temperature of the fourth stage is 170~190℃.

10. The preparation method according to claim 8, characterized in that, During blow molding, the ratio of the outer layer, middle layer, and inner layer is 1:1:1.

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