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Preparation of polyvinyl butyral from photochromic nano composite material and its method

A technology of polyvinyl butyral and nano-composite materials, applied in photosensitive materials, optics, instruments, etc., can solve the problems of increasing processing costs, affecting defoaming, bonding strength, etc., and achieves easy defoaming, bright color, The effect of long service life

Inactive Publication Date: 2007-02-07
天津市燕化新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will not only increase the processing cost, but also affect the defoaming and bonding strength of the processing process.

Method used

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  • Preparation of polyvinyl butyral from photochromic nano composite material and its method
  • Preparation of polyvinyl butyral from photochromic nano composite material and its method
  • Preparation of polyvinyl butyral from photochromic nano composite material and its method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: Preparation of photochromic nanocomposite material

[0041] The first step, the synthesis of 6-chloro-2,3,3-trimethylindoline iodide

[0042] In a 1000mL three-neck flask, add 26g of p-chloroaniline and 150mL of 6M HCl, heat to dissolve, then cool it to about 0°C with an ice bath, control the temperature and add dropwise 15g of NaNO 2 60mL of aqueous solution, continue to stir for 30 minutes, filter, add Na to the filtrate 2 SO 3 solution (70g Na 2 SO 3 +400mL water), after the addition, stir again until the temperature rises to room temperature, add concentrated HCl to acidify. The solid was obtained by suction filtration, and after drying thoroughly, weighed 35 g of the solid and put it into a 500 mL round bottom flask, then added 300 mL of absolute ethanol and 34.4 g of methyl isopropyl ketone, and added concentrated H 2 SO 4 20mL, heated to reflux for 7 hours, distilled off the solvent ethanol, and then washed with saturated Na 2 CO 3 Neutraliz...

Embodiment 2

[0049] Embodiment 2: Preparation of photochromic PVB film for blue automobile and building

[0050] The first step is the mixing of plasticizers and additives

[0051] Weigh plasticizer DHA (or 3GH, 3GO) 800~860g, add potassium acetate 1~1.8g, ultraviolet absorber UV-770 (or T-P) 5~10g, antioxidant CA (or POP) 10~20g, Heat and stir to make it all dissolve, let it cool down, and set aside.

[0052] The second step is the mixing of photochromic nanocomposites and PVB resin

[0053] Weigh 2000-2800g of PVB fine powder, add 8-14g of blue photochromic nano-composite material, stir well and mix evenly.

[0054] The third step, the preparation of photochromic PVB film

[0055] Spray the mixed solution of plasticizer and auxiliary agent into the PVB resin powder mixed with photochromic material, stir well and gradually heat up to 90°C, and extrude under suitable process conditions through an extruder to produce Meet the requirements of photochromic PVB film.

Embodiment 3

[0056] Embodiment 3: Preparation of photochromic PVB film for purple automobile and building

[0057] The first step is the mixing of plasticizers and additives

[0058] Weigh plasticizer DHA (or 3GH, 3GO) 800~860g, add potassium acetate 1~1.8g, ultraviolet absorber UV-770 (or T-P) 5~10g, antioxidant CA (or POP) 10~20g, Heat and stir to make it all dissolve, let it cool down, and set aside.

[0059] The second step is the mixing of photochromic nanocomposites and PVB resin

[0060] Weigh 2000-2800g of PVB fine powder, add 8-14g of purple photochromic nano-composite material, fully stir and mix evenly.

[0061] The third step, the preparation of photochromic PVB film

[0062] Spray the mixed solution of plasticizer and auxiliary agent into the PVB resin powder mixed with photochromic material, stir well and gradually heat up to 90°C, and extrude under suitable process conditions through an extruder to produce Meet the requirements of photochromic PVB film.

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Abstract

The present invention discloses the preparation process of photochromatic PVB film with one kind of nanometer composite photochromatic material. The photochromatic PVB film is prepared with photochromatic compound [R1]-[M]-[R2][R3], where [M] is naphtho- or benzo- oxazine or spiropyran group, [R1], [R2] and [R3] are different substituted groups; nanometer solid material and plasticized PVB resin. The photochromatic PVB film with photochromatic compound [R1]-[M]-[R2][R3] added has excellent photochromatic performance, and can develop color fast in high chroma under irradiaton of visible light or ultraviolet, and decolor fast in high fatigue resistance. This kind of material may be dissolved in various kinds of polymer medium. The present invention also introduces the preparation process of photochromatic PVB film for automobile.

Description

technical field [0001] The invention relates to a polyvinyl butyral film, in particular to a preparation method of a photochromic nanocomposite polyvinyl butyral film. Background technique [0002] Photochromic material is a kind of material that has a wide range of uses and has attracted much attention, but the following factors limit its real application. First of all, in most cases, photochromic compounds must have good photochromic properties in the molecular state, and only when they are effectively and uniformly dispersed in a medium (in most cases, polymers) can they have application value. This requires them to have good solubility, uniformity, compatibility and coordination in the medium. Otherwise, crystallization will occur in the medium, or fogging will ooze out on its surface, and the photochromic properties will be lost. Secondly, it is required to have stable performance in the medium, bright color development, fast fading speed, long service life and good f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/14C08K5/357C08J5/18G03C1/795
Inventor 孟继本陆桂芬赵梓年黄华鸣陈清华沈惠玲谈廷风嵇相阳贾毅
Owner 天津市燕化新材料有限公司
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