Encapsulant for PV module, method of manufacturing the same and PV module comprising the same
AssigneeLG Chem, Ltd.
InventorsJe Sik Jung, Hyun Cheol Kim, Jung Youn Lee
Life of this patent
Estimating the term…
Abstract
The present application relates to an encapsulant for a PV module, a method of manufacturing the same and a PV module. The encapsulant according to an embodiment of the present application has excellent heat resistance or the like and improved creep physical properties, and thus even when the encapsulant is used under conditions of a high temperature and/or high humidity for a long time, deformation is small and the encapsulant can exhibit excellent adhesive strength. Accordingly, when the encapsulant is applied to a PV module, durability or the like may be improved.
Claims15
An encapsulant for a photovoltaic (PV) module, comprising:
- an ethylene/α-olefin-based copolymer;
- a silane modified ethylene/α-olefin-based copolymer;
- and
- a heat resistant polymer resin having a melting point (Tm) higher than the ethylene/α-olefin-based polymer,
- wherein the silane modified ethylene/α-olefin-based copolymer is the ethylene/α-olefin-based copolymer graft polymerized with a silane compound, and
- wherein the silane compound comprises a compound represented by Formula 1:
- DSiR1pR2(3-p) [Formula 1]
- wherein D is an alkenyl group, R1 is an alkoxy group, an alkylthio group, an aryloxy group, an acyloxy group, a hydroxy group, a halogen group, an amine group or —R3R4, R3 is an oxygen (O) or sulfur (S) atom, R4 is an alkyl group, an aryl group, or an acyl group, R2 is hydrogen, an alkyl group, an aryl group, or an aralkyl group, and p is an integer in a range of 1 to 3.
An encapsulant for a photovoltaic (PV) module, comprising:
- an ethylene/α-olefin-based copolymer;
- a silane modified ethylene/α-olefin-based copolymer;
- and
- a heat resistant polymer resin having a melting point (Tm) higher than the ethylene/α-olefin-based polymer,
- wherein the silane modified ethylene/α-olefin-based copolymer is the ethylene/α-olefin-based copolymer graft polymerized with a silane compound, and
- wherein the silane compound comprises a compound represented by Formula 2:
- SiR5qR6(4-q) [Formula 2]
- wherein R5 is —(CH2)vNR7R8, R7 and R8 are each independently hydrogen or R9NH2 bound to nitrogen atoms, R9 is an alkylene group having 1 to 6 carbon atoms, R6 is halogen, an amine group, —R10R11 or —R11, R10 is an oxygen (O) or sulfur (S) atom, R11 is hydrogen, an alkyl group, an aryl group, an aralkyl group, or an acyl group, v is an integer of 1 or more, and q is an integer in a range of 1 to 4.
An encapsulant for a photovoltaic (PV) module, comprising:
- an ethylene/α-olefin-based copolymer;
- a silane modified ethylene/α-olefin-based copolymer;
- and
- a heat resistant polymer resin having a melting point (Tm) higher than the ethylene/α-olefin-based polymer,
- wherein the silane modified ethylene/α-olefin-based copolymer comprises a main chain including a polymerization unit of an olefin-based monomer and a branched chain bound to the main chain, and the branched chain includes a compound represented by Formula 3 or Formula 4:
- —SiR12R13R14 [Formula 3]
- wherein, in Formula 3, R12 and R13 are each independently halogen, an amine group, —R15R16 or —R16, R15 is an oxygen (O) or sulfur (S) atom, R16 is hydrogen, an alkyl group, an aryl group, an aralkyl group, or an acyl group, R14 is —OSiR17mR18(2-m)R19, R17 and R18 are each independently halogen, an amine group, —R20R21 or —R21, R20 is an oxygen (O) or sulfur (S) atom, R21 is hydrogen, an alkyl group, an aryl group, an aralkyl group, or an acyl group, R19 is —(CH2)nNR22R23, R22 and R23 are each independently hydrogen bound to nitrogen atoms or R24NH2, R24 is an alkylene group, m is an integer of 1 or 2, and n is an integer of 1 or more,
- —SiR25rR26(3-r) [Formula 4]
- wherein, in Formula 4, R25 and R26 are each independently halogen, an amine group, —R27R28 or —R28, R27 is an oxygen (O) or sulfur (S) atom, R28 is hydrogen, an alkyl group, an aryl group, an aralkyl group, or an acyl group, and r is an integer in a range of 1 to 3.
Dependencies are inferred from the claim text.