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Thermoplastic polyolefin photovoltaic waterproof coiled material and preparation method thereof

A technology of thermoplastic polyolefin and waterproof membrane, which is applied in photovoltaic power generation, climate sustainability, sustainable buildings, etc., can solve the problems of narrow temperature range of elastic performance and poor long-term weather resistance, so as to improve aging resistance and improve Waterproof performance, the effect of stabilizing the interpenetrating network structure

Active Publication Date: 2022-07-08
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TPO itself has the problems of poor long-term weather resistance and narrow elastic temperature range, which limits the use of TPO waterproof rolls in photovoltaic waterproof rolls.

Method used

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  • Thermoplastic polyolefin photovoltaic waterproof coiled material and preparation method thereof
  • Thermoplastic polyolefin photovoltaic waterproof coiled material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of light stabilizers:

[0025] After mixing 0.1mol 2,4-dihydroxybenzophenone, 0.13mol triethylamine and 60mL dichloromethane, at 0°C, slowly add 0.1mol acryloyl chloride dropwise, after the dropwise addition is complete, heat up to 10°C , stirred and reacted for 3h, then washed with water, separated the liquid, took the organic phase for recrystallization with methanol, and dried to obtain a light stabilizer.

Embodiment 2

[0027] The elastic material is made by the following steps:

[0028] The first step, after mixing 0.05mol hyperbranched polyester and 150mL dioxane evenly, turn on the condensed water, heat to 85°C, add 0.8mol methacrylic acid and 1.5g p-toluenesulfonic acid, stir and react for 6h, reduce to 50 ℃ decompression (-0.3MPa) rotary evaporation to obtain double bond-terminated hyperbranched polyester, wherein the hyperbranched polyester is hyperbranched polyester Boltorn H20;

[0029] In the second step, 0.28mol 3-mercaptopropylmethyldimethoxysilane, 0.75mol octamethylcyclotetrasiloxane and 0.01mol 1,1,3,3-tetramethyldisiloxane were added to the On the four-necked flask of mechanical stirring, thermometer, condenser and constant pressure funnel, slowly dropwise add the mixed solution of 1.1 g of trifluoromethanesulfonic acid and 0.23 mol of deionized water, after the dropwise addition, keep the temperature at 75 ° C to react until transparent , cooled to room temperature, washed by...

Embodiment 3

[0033] Preparation of elastic material:

[0034]The first step, after mixing 0.1 mol of hyperbranched polyester and 300 mL of dioxane, turn on the condensed water, heat to 90 ° C, add 1.6 mol of methacrylic acid and p-toluenesulfonic acid, stir and react for 8 hours, and then reduce to 50 ° C. Pressure (-0.3MPa) rotary evaporation to obtain double bond-terminated hyperbranched polyester, wherein, the hyperbranched polyester is hyperbranched polyester Boltorn H20, and its relative molecular mass is 1500-2000,

[0035] In the second step, 0.42mol 3-mercaptopropylmethyldimethoxysilane, 0.8mol octamethylcyclotetrasiloxane and 0.01mol 1,1,3,3-tetramethyldisiloxane were added to the On the four-necked flask of mechanical stirring, thermometer, condensation tube and constant pressure funnel, slowly add the mixed solution of 4.4g trifluoromethanesulfonic acid and 0.32mol deionized water dropwise, after the dropwise addition, keep the reaction at 75°C until transparent , cooled to roo...

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Abstract

The invention relates to a thermoplastic polyolefin photovoltaic waterproof coiled material and a preparation method thereof, and belongs to the technical field of waterproof coiled materials. The waterproof coiled material comprises the following raw materials: a polyolefin copolymer, propylene-ethylene block co-polypropylene, an elastic material, a phase change material, a modified inorganic flame retardant and an antioxidant, wherein the elastic material is sulfenyl hyperbranched siloxane grafted with a light stabilizer. The elastic material and the phase change material are introduced into the polyolefin base material, the elastic property of the thermoplastic polyolefin photovoltaic waterproof coiled material in a wide temperature range is synergistically improved, and the elastic material also improves the aging resistance of the waterproof coiled material and the durability of the aging resistance; the elastic material has a hyperbranched structure and free double bonds, the elastic material, the modified inorganic flame retardant and the polyvinyl base material are crosslinked through the double bonds, and formation of a stable interpenetrating network structure in a waterproof roll system is promoted.

Description

technical field [0001] The invention belongs to the technical field of waterproof rolls, and in particular relates to a thermoplastic polyolefin photovoltaic waterproof roll and a preparation method. Background technique [0002] Photovoltaic equipment usually has energy conversion during the working process, which causes huge changes in the temperature of the surrounding environment, which will accelerate the aging of the waterproof membrane. These characteristics make the photovoltaic waterproof membrane have particularly high requirements for the material's aging resistance and elastic properties in a wide temperature range. Thermoplastic polyolefin (TPO) waterproofing membrane is a sheet-like thermoplastic rubber elastic waterproofing material made of vinyl resin based on polymerization technology and specific formula. The ingredients do not contain plasticizers or plasticizers It becomes brittle after migration, and has the characteristics of environmental protection. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L53/00C08L23/14C08L51/08C08K5/134C08K5/526C08K7/20C08K9/06C08K3/32C08K3/22C08F283/12C08F220/30C08G77/445
CPCC08L23/0815C08L53/00C08L23/142C08F283/124C08G77/445C08L2201/08C08K2003/328C08K2003/2227C08L2205/04C08L2201/02C08L2203/20C08L51/085C08K5/1345C08K5/526C08K7/20C08K9/06C08K3/32C08K3/22C08F220/302Y02E10/50
Inventor 李同兵刘悦钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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