Ultraviolet-resistant polychromatic fiber
A color-changing fiber, anti-ultraviolet technology, applied in the chemical characteristics of fibers, textiles and papermaking, rayon manufacturing and other directions, can solve problems such as difficult to apply to the family, poor shading performance, affecting light, etc., to achieve good ultraviolet light color-changing performance, Good UV protection and ensure the effect of blocking performance
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Example Embodiment
[0038] The preparation method of the polymethyl methacrylate modified photochromic agent includes the following steps:
[0039] 1) Add methyl methacrylate monomer and ethanol to the reactor, make the methyl methacrylate completely dissolved in ethanol after stirring, add inorganic color changer and organic color changer, continue to stir and heat to 60°C -80℃, then add the initiator BPO ethanol solution, stop heating and keep stirring for 1-2 hours, and gradually cool to solid;
[0040] 2) Grind the above solid into a powder to obtain a polymethyl methacrylate modified photochromic agent.
[0041] The polymethyl methacrylate modified photochromic agent is a shell-core structure with a photochromic agent as the core and a polymethyl methacrylate shell, which can ensure the stability of the polymer fiber Combine and distribute evenly.
Example Embodiment
[0042] Example 1
[0043] A color-changing fiber with anti-ultraviolet rays, wherein the color-changing fiber includes at least light-changing fiber;
[0044] The light-chromic fiber is composed of:
[0045] 55 parts of vinyl ternary copolymer fiber;
[0046] 20 parts of polymethyl methacrylate modified photochromic agent;
[0047] Additive 1 part;
[0048] The inorganic photochromic agent is CaHfO3: La 2 O 3 .
[0049] In the polymethyl methacrylate modified photochromic agent, the photochromic agent accounts for 0.1% of the total weight of the polymethyl methacrylate modified photochromic agent.
[0050] The organic photochromic agent includes a combination of spiropyran and azobenzene, wherein the mass ratio of spiropyran and azobenzene is 1:1.
[0051] The mass ratio of inorganic photochromic agent to organic photochromic agent is 1:3.
[0052] The auxiliary agent includes one or more combinations of an oxidizing agent, a compatibilizer, an anti-aging agent, and a light stabilizer.
[005...
Example Embodiment
[0056] Example 2
[0057] A color-changing fiber with anti-ultraviolet rays, wherein the color-changing fiber includes at least light-changing fiber;
[0058] The light-chromic fiber is composed of:
[0059] 80 parts of vinyl ternary copolymer fiber;
[0060] 30 parts of polymethyl methacrylate modified photochromic agent;
[0061] 5 parts of additives;
[0062] The inorganic photochromic agent is CaHfO3: La 2 O 3 .
[0063] In the polymethyl methacrylate modified photochromic agent, the photochromic agent accounts for 5% of the total weight of the polymethyl methacrylate modified photochromic agent.
[0064] The organic photochromic agent includes a combination of spiropyran and azobenzene, wherein the mass ratio of spiropyran and azobenzene is 1:1.
[0065] The mass ratio of inorganic photochromic agent to organic photochromic agent is 1:5.
[0066] The auxiliary agent includes one or more combinations of an oxidizing agent, a compatibilizer, an anti-aging agent, and a light stabilizer.
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