Composite luminescent fiber and preparation method and application thereof

[0071] By adopting the preparation method provided by the invention, the composite spinning of the polymer and the aggregation-induced luminescent AIE molecule is realized to prepare the composite luminescent fiber. Because the AIE molecule has high luminescence under the excitation of ultraviolet light, and the polymer can provide the mechanical properties required by the composite fiber, the formed polymer / AIE composite luminescent fiber has excellent luminescence and mechanical properties that meet the requirements.

[0072] According to the present invention, the first solvent and the second solvent are each independently selected from at least one of dichloromethane, cyclohexane, phenol, toluene, acetonitrile, chlorobenzene, and methyl acetate.

[0073] According to the present invention, in step 4), the conditions of the pre-curing treatment are: the pre-curing temperature is 40-80° C., and the pre-curing time is 5-40 min.

[0074] In the present invention, the pre-curing treatm

[0118] Preparation example

[0119] Use as figure 1 The spinning method shown to prepare luminous fiber, the specific operation steps are:

[0120] Transfer the spinning solution into a 100ml syringe while heating the temperature of the oil bath to 150℃. The injection pump extrudes the spinning solution into the oil bath at a speed of 8ml / min. The spinning solution is rapidly solidified in the oil bath. For fiber, the curing time is 8s, then the fiber is collected on the bobbin at a linear speed of 2m / min., and finally washed and dried.

[0121] Example 1

[0122] Step 1): Prepare aggregation-induced luminescence (AIE) molecule solution: add 0.006 g of aggregation-induced luminescence (AIE) molecule II to dichloromethane to obtain an aggregation-induced luminescence (AIE) solution;

[0123] Step 2): Prepare the A-component composite solution of AIE@PDMS: add 1.82g of PDMS A-component into the aggregation-induced luminescence (AIE) molecular solution described in step 1), stir manually to make it fully mixed and uniform ; Then put the prepared composite solution into a 40 ℃ vacuum drying oven and vacuum dry for 4 hours;

[0124] Step 3): Prepare the AIE@PDMS composite solution: add 0.18 g of PDMS component B to the composite solution described in step 2), stir thoroughly to make it evenly mixed, and obtain the AIE@PDMS composite solution;

[0125] Step 4): Preparation of AIE@PDMS spinning solution: Put the AIE@PDMS composite solution described in step 3) into an oven at 60°C for 10 minutes, and then cool for 30 minutes to