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A kind of polyolefin elastomer adhesive film with low water vapor transmission rate and preparation method thereof
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A low water vapor, polyolefin technology, applied in the field of polyolefin elastomer film and preparation, can solve the problems of not fully guaranteeing reliability, losing water blocking effect, limited effect of improving water blocking performance of film, etc., to improve cross-linking Density, improve water resistance, improve the effect of cross-linking
Active Publication Date: 2020-12-01
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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Problems solved by technology
This method has a limited effect on improving the water-blocking performance of the film, and when the water-absorbing agent is saturated or completely reacts with water, the water-blocking effect will be lost, and the reliability of the long-term use of the module cannot be fully guaranteed.
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Embodiment 1
[0024]Components comprising the following parts by mass: 80 parts of polyolefin elastomer with a melt index of 5g / 10min, brand C5070D (SABIC Innovative Plastics), 20 parts of ethylene octene copolymer modified resin containing 2.5% amino groups, 0.26 parts of ethylene glycol acid, 0.65 parts tert-butyl peroxyisopropyl carbonate, 0.6 parts triallyl isocyanurate, 0.5 parts vinyltriethoxysilane, 0.04 parts 3,5-di-tert-butyl-4-hydroxy - cetyl benzoate, 0.2 part molecular sieve, designated as S-1.
Embodiment 2
[0026] Components comprising the following parts by mass: 65 parts of polyolefin elastomers with a melt index of 15g / 10min, trade mark C13060D (SABIC Innovative Plastics), 35 parts of ethylene and pentene copolymer modified resins containing 1.0% carboxyl groups, 0.20 parts of 1 , 4-Butanediamine, 0.40 tert-Butyl 3,3,5 Trimethylhexanoate peroxide, 0.35 Triallyl Isocyanurate B, 0.5 Part Vinyltrimethoxysilane, 0.08 Part 4-Hydroxy - 2,2,6,6-tetramethyl-1-piperidinol, 0.25 parts of silica, denoted as S-2.
Embodiment 3
[0028] Components comprising the following parts by mass: 80 parts of polyolefin elastomers with a melt index of 30g / 10min, grade C30070D (SABIC Innovative Plastics), 20 parts of ethylene-butylene copolymer modified resins containing 2.0% isocyanate groups, 0.22 parts of 1 , 3-propanediol, 0.65 parts of 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, 0.6 parts of triallyl isocyanurate, 0.5 parts of vinyltri Ethoxysilane, 0.02 part of 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinol, 0.2 part of magnesium sulfate, denoted as S-3.
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Abstract
The invention discloses a low water vapor transmission rate polyolefin elastomer adhesive film and a preparation method, which comprises 50-100 parts by mass of matrix resin, 0-40 parts by mass of modified resin, and 0.001-2 parts by mass of active agent , 0.1 to 3 parts by mass of organic peroxides, 0.02 to 5 parts by mass of co-crosslinking agents, 0.02 to 2 parts by mass of silane coupling agents, 0.005 to 2 parts by mass of light stabilizers, 0 to 20 parts by mass of Water blocking filler. The present invention improves the cross-linking degree and cross-linking density of the adhesive film by adding the modified resin and activator with active groups, and reduces the water vapor transmission rate; adding water-blocking fillers further improves the water-blocking performance of the adhesive film, ensuring Component reliability, extending component life.
Description
technical field [0001] The invention belongs to the field of photovoltaic encapsulation materials, and relates to a polyolefin elastomer adhesive film with low water vapor transmission rate used for encapsulation of electronic devices and a preparation method. Background technique [0002] Today, with energy shortages and environmental problems becoming more and more prominent, it has become an inevitable trend to find renewable and environmentally friendly green energy. Photovoltaic power generation is the process of converting solar energy into electrical energy. It has three advantages of permanence, cleanliness and flexibility. Compared with traditional thermal power generation, hydropower generation and nuclear power generation, its preparation process is simple and reproducible. Therefore, Has a very good development prospects. [0003] At present, the packaging material of photovoltaic modules mainly adopts ethylene vinyl acetate copolymer (EVA). However, the molecu...
Claims
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