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Adhesive composition with (methyl) acrylate structure

An acrylate and composition technology, which is applied in the field of compositions with high molecular organic compounds as the main components, can solve the problem of not considering the glass transition temperature of acrylate oligomers, and the inability to realize the high-temperature and low-temperature performance of solar cell adhesives, etc. question

Pending Publication Date: 2022-07-01
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition scheme does not consider the relationship between the glass transition temperature of acrylate oligomers and the performance of structural adhesives, nor can it achieve the high and low temperature performance requirements in solar cell adhesives

Method used

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  • Adhesive composition with (methyl) acrylate structure
  • Adhesive composition with (methyl) acrylate structure
  • Adhesive composition with (methyl) acrylate structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Example 1 (adhesive composition E1)

[0118] Each component (17.5 parts by weight of polyurethane (meth)acrylate oligomer CN966J75, 7.25 parts by weight of high Tg monomer SR506, 0.25 parts by weight of multifunctional monomer SR368, 0.15 parts by weight of silane coupling agent KH570 and 0.25 parts by weight of thermal initiator Luperox 575) was added to the container, and mixed with a Speedmixer (Thinky ARE-310, Japan's Thinky Company) at a speed of 2000 rpm for 3 minutes, and then at a speed of 2200 rpm Mix for 1 minute to prepare Adhesive Composition E1 of Example 1. The prepared adhesive composition was stored in a refrigerator at around 4°C.

Embodiment 2 to 10

[0119] Examples 2 to 10 (Adhesive Compositions E2 to E10)

[0120] Adhesive compositions E2 to E10 of Examples 2 to 10 were prepared in the same manner as in Example 1, except that the components in Table 1 below were used.

Embodiment 11

[0150] Example 11 (adhesive composition E11 containing inorganic filler)

[0151] 20 parts by weight of the adhesive composition E4 and 0.6 parts by weight of the inorganic filler H18 were thoroughly mixed using a Speedmixer (Thinky ARE-310) to prepare the adhesive composition E11 of Example 11.

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Abstract

The invention relates to an adhesive composition with a (methyl) acrylate structure. The composition comprises a low-Tg polyurethane (methyl) acrylate oligomer, a high-Tg (methyl) acrylate monomer and an initiator. The adhesive composition disclosed by the invention has balanced low-temperature flexibility and high-temperature adhesive strength, can be selectively combined with proper filler, can provide stable adhesion at low temperature, has good thermal cycle performance, and can keep excellent adhesive force and insulating property after long-term high-temperature / high-humidity test.

Description

technical field [0001] The present invention relates to a composition with a high molecular organic compound as the main component, and more particularly, to a (meth)acrylate-based structural adhesive composition. Background technique [0002] As people pay more and more attention to global environmental changes, the ways of energy utilization that are beneficial to environmental protection have received extensive attention. Among them, solar energy technology has become the focus of research and development of scientists and enterprises because of its advantages to environmental protection. In the field of photovoltaic solar cells, shingled modules are a new module technology that can increase the output power of conventional solar cell modules by 10% or more. In the shingled module design, a single solar cell is cut into different small pieces, which are then bonded together with conductive adhesive (ECA). This technology eliminates the need for welding on the ribbon and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J9/02C09J11/06
CPCC09J175/14C09J9/02C09J11/06C08K2201/001C08K5/5425C08K7/26C08K7/00C08K7/18
Inventor 张丽晶何瑞璇陈连周柳群英李永明
Owner 3M INNOVATIVE PROPERTIES CO