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CN-117511041-B - Floating body material, preparation process thereof and floating type photovoltaic power station

CN117511041BCN 117511041 BCN117511041 BCN 117511041BCN-117511041-B

Abstract

The application discloses a floating body material, a preparation process thereof and a floating type photovoltaic power station, and relates to the technical field of photovoltaics, wherein the floating body material comprises a main body material and reinforcing fibers, the main body material comprises high-density polyethylene and aluminum-silicon hollow microspheres, the density of the floating body material is less than or equal to 0.96g/cm < 3 >, and the tensile strength of the floating body material is greater than or equal to 27MPa. The application provides a floating body material with higher strength and lower density, and the floating body prepared by adopting the floating body material can resist the wave impact of an offshore water area with enough strength under the condition of not reducing the load.

Inventors

  • CHEN ZHENGYAN
  • LIN HESHAN
  • WU HAO
  • WU WEIWU

Assignees

  • 阳光水面光伏科技股份有限公司

Dates

Publication Date
20260508
Application Date
20231123

Claims (12)

  1. 1. A float material, characterized in that the float material comprises a main body material and reinforcing fibers, wherein the main body material comprises high-density polyethylene and aluminum-silicon hollow microspheres; the mass ratio of the aluminum-silicon hollow microspheres in the main material is 10% -20%; The addition amount of the reinforcing fiber is 1% -5% of the mass of the main body material; the reinforcing fiber comprises surface modified bamboo charcoal fiber; The density of the floating body material is less than or equal to 0.96g/cm 3 , and the tensile strength of the floating body material is greater than or equal to 27MPa.
  2. 2. The float material of claim 1 wherein said high density polyethylene has a melt index of 6 to 16g/10min at 190 ℃ at 21.6 kg; and/or the particle size of the aluminum-silicon hollow microsphere is smaller than 10 mu m; and/or the length of the reinforcing fiber is 1-10mm.
  3. 3. The float material of claim 2 wherein said surface modified bamboo carbon fibers comprise a bamboo carbon fiber core layer and an oxidation resistant surface layer.
  4. 4. The floating body material of claim 3, wherein the oxidation resistant surface layer is formed by surface treatment of bamboo charcoal fibers with a surface treatment agent, wherein the surface treatment agent comprises n-octane, butyl acrylate, vinyl stearamide, and secondary diarylamines.
  5. 5. The floating body material according to claim 4, wherein the mass ratio of the n-octane, the butyl acrylate, the vinyl stearamide and the secondary diarylamines is 1 (8-12): 8-12; and/or the mass ratio of the bamboo charcoal fiber to the surface treating agent is (80-100): 1.
  6. 6. The float material of claim 1 further comprising at least one of a coupling agent, an antioxidant, and an ultraviolet resistant adjuvant.
  7. 7. The floating body material according to claim 6, wherein the addition amount of the coupling agent is 5% -15% of the mass of the aluminum-silicon hollow microsphere; And/or the addition amount of the antioxidant is 0.01-0.05% of the mass of the main body material; And/or the addition amount of the ultraviolet-resistant auxiliary agent is 0.0005% -0.001% of the mass of the main body material; And/or the coupling agent comprises at least one of a silane coupling agent and a titanate coupling agent; And/or the antioxidant comprises a primary antioxidant and a secondary antioxidant, the mass ratio of the primary antioxidant to the secondary antioxidant is 1:1, wherein the primary antioxidant comprises at least one of 2, 6-di-tert-butyl-p-cresol and 3, 5-di-tert-butyl-4-hydroxyphenyl-octadecyl propionate, and the secondary antioxidant comprises at least one of triphosphite and dioctadecyl pentaerythritol diphosphite; And/or the ultraviolet resistant auxiliary comprises a light stabilizer and a light absorber, wherein the mass ratio of the light stabilizer to the light absorber is 2:1, the light stabilizer comprises at least one of a light stabilizer 770, a light stabilizer 944 and a light stabilizer 2020, and the light absorber comprises at least one of benzophenone, benzotriazole, triazine and salicylate.
  8. 8. A process for the preparation of a float material according to any one of claims 1 to 7, characterized in that the preparation process comprises the following steps: Mixing floating body material raw materials into a raw material mixture, wherein the floating body material raw materials at least comprise high-density polyethylene, aluminum-silicon hollow microspheres and reinforcing fibers; Extruding and granulating the raw material mixture to obtain raw material particles; and carrying out blow molding on the raw material particles to obtain the floating body material.
  9. 9. The process for preparing a float material of claim 8 wherein said float material stock further comprises a coupling agent and other adjuvants, said step of mixing the float material stock into a stock mixture comprising: Mixing the aluminum-silicon hollow microspheres with a coupling agent, and mixing for 20-40min at a rotating speed of 200-500r/min to obtain surface modified aluminum-silicon hollow microspheres; And mixing the surface modified aluminum-silicon hollow microspheres with high-density polyethylene, reinforcing fibers and other auxiliary agents to obtain a raw material mixture.
  10. 10. The process for preparing a float material according to claim 8, wherein the raw material mixture is sequentially subjected to four stages during the extrusion granulation, wherein the temperature of the first stage is 150 to 160 ℃, the temperature of the second stage is 170 to 180 ℃, the temperature of the third stage is 185 to 200 ℃, and the temperature of the fourth stage is 180 to 190 ℃.
  11. 11. The process for preparing a float material of claim 8 wherein said reinforcing fibers comprise surface modified bamboo carbon fibers, further comprising, prior to said step of mixing the float material raw materials into a raw material mixture: Premixing bamboo charcoal fiber and a surface treatment agent for 5-15min to obtain a premix; and mixing the premix at the temperature of 40-60 ℃ for 20-40min, and cooling to obtain the surface modified bamboo charcoal fiber.
  12. 12. A floating photovoltaic power plant, characterized in that it comprises a floating body made of a floating body material according to claims 1-7.

Description

Floating body material, preparation process thereof and floating type photovoltaic power station Technical Field The application relates to the technical field of photovoltaics, in particular to a floating body material, a preparation process thereof and a floating photovoltaic power station. Background Photovoltaic refers to a novel power generation technology for directly converting solar energy into electric energy. In general, large land photovoltaic projects need to occupy more land area and land resources, and floating photovoltaic power stations are important development discoveries of photovoltaic power generation, namely, the photovoltaic power stations are moved from land to water, and power stations are built on ocean and fresh water by utilizing the photovoltaic technology, so that the floating photovoltaic power stations have the characteristics of high power generation amount, small land occupation, easiness in combination with other industries and the like. The floating platform is a bearing foundation of the floating type photovoltaic power station, and the floating body is an important component part of the floating platform. At present, the blow-molded floating body can meet the technical requirement of resisting water waves in inland water areas, but when the blow-molded floating body is developed in offshore water areas, the strength of the existing blow-molded floating body is insufficient, and if the technical requirement of resisting water waves is met, the load of the blow-molded floating body is reduced. Disclosure of Invention The application mainly aims to provide a floating body material, a preparation process thereof and a floating type photovoltaic power station, and aims to solve the technical problem that the floating body material in the related art is difficult to have high strength and high load. In order to achieve the above object, the present application provides a floating body material comprising a body material and reinforcing fibers, wherein the body material comprises high-density polyethylene and aluminum-silicon hollow microspheres; The density of the floating body material is less than or equal to 0.96g/cm 3, and the tensile strength of the floating body material is greater than or equal to 27MPa. Further, the mass ratio of the aluminum-silicon hollow microspheres in the main material is 10% -20%; the addition amount of the reinforcing fiber is 1% -5% of the mass of the main body material. Further, the high-density polyethylene has a melt index of 6-16g/10min at 190 ℃ and 21.6 kg; and/or the particle size of the aluminum-silicon hollow microsphere is smaller than 10 mu m; and/or, the reinforcing fiber comprises a surface modified bamboo charcoal fiber; and/or the length of the reinforcing fiber is 1-10mm. Further, the surface modified bamboo charcoal fiber comprises a bamboo charcoal fiber core layer and an antioxidant surface layer. Further, the antioxidant surface layer is formed by carrying out surface treatment on the bamboo charcoal fiber through a surface treatment agent, wherein the surface treatment agent comprises n-octane, butyl acrylate, vinyl stearamide and secondary diarylamines. Further, the mass ratio of the n-octane to the butyl acrylate to the vinyl stearamide to the diarylamines is 1 (8-12): 8-12; and/or the mass ratio of the bamboo charcoal fiber to the surface treating agent is (80-100): 1. Further, the floating body material further comprises at least one of a coupling agent, an antioxidant and an ultraviolet resistant auxiliary agent. Further, the addition amount of the coupling agent is 5% -15% of the mass of the aluminum-silicon hollow microsphere; And/or the addition amount of the antioxidant is 0.01-0.05% of the mass of the main body material; And/or the addition amount of the ultraviolet-resistant auxiliary agent is 0.0005% -0.001% of the mass of the main body material; And/or the coupling agent comprises at least one of a silane coupling agent and a titanate coupling agent; And/or the antioxidant comprises a primary antioxidant and a secondary antioxidant, the mass ratio of the primary antioxidant to the secondary antioxidant is 1:1, wherein the primary antioxidant comprises at least one of 2, 6-di-tert-butyl-p-cresol and 3, 5-di-tert-butyl-4-hydroxyphenyl-octadecyl propionate, and the secondary antioxidant comprises at least one of triphosphite and dioctadecyl pentaerythritol diphosphite; And/or the ultraviolet resistant auxiliary comprises a light stabilizer and a light absorber, wherein the mass ratio of the light stabilizer to the light absorber is 2:1, the light stabilizer comprises at least one of a light stabilizer 770, a light stabilizer 944 and a light stabilizer 2020, and the light absorber comprises at least one of benzophenone, benzotriazole, triazine and salicylate. The application also provides a preparation process of the floating body material, which comprises the following steps: Mixing floating body material raw mate