Quantum dot composition, quantum dot composite material, preparation method and application thereof
A technology of composite materials and quantum dots, which is applied in the field of quantum dot compositions, can solve problems such as poor barrier properties, poor compatibility, and low luminous efficiency of quantum dot composite materials, and achieve the goal of improving luminous efficiency and stability and good chemical stability Effect
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[0052] In another typical embodiment of the present invention, a method for preparing a quantum dot composite material is provided. The preparation method includes: a polymer matrix cured product precursor, a crosslinking agent, a curing agent, quantum dots and optional The additives are mixed to obtain a first mixture; the first mixture is cured to obtain a quantum dot composite material; wherein, the precursor of the polymer matrix cured product includes a novolak epoxy-acrylate block copolymer.
[0053] The preparation method of the above-mentioned quantum dot composite material adopts the novolac epoxy-acrylate block copolymer which has the advantages of good barrier properties of epoxy resin to water vapor and oxygen, and good compatibility of acrylate and quantum dots. As the precursor of the cured polymer matrix of quantum dots, the problems of compatibility and barrier properties with quantum dots have been successfully solved through the crosslinking of the crosslinkin...
Embodiment 1
[0074] Using the novolac epoxy-acrylate block copolymer as the precursor of the cured polymer matrix, the precursor of the cured polymer matrix, the crosslinking agent and the curing agent are used to obtain the first mixture; the first mixture is cured to obtain the quantum Point composite materials, the raw materials used for the specific reactants of each step are shown in Table 1, and the dosage ratio and specific reaction conditions between each raw material are shown in Table 2.
Embodiment 2
[0076] Embodiment 2 adopts novolac epoxy-acrylate block copolymer as the polymer matrix cured product precursor, with the polymer matrix cured product precursor, crosslinking agent, curing agent and additives, to obtain the first mixture; the first The mixture was solidified to obtain a quantum dot composite material. The raw materials used for the specific reactants in each step are shown in Table 1, and the dosage ratio and specific reaction conditions of each raw material are shown in Table 2.
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