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Photochromic PVB film as well as preparation method and application thereof

A technology of photochromic and photochromic materials, applied in the direction of adhesives, film/sheet adhesives, film/sheet without carrier, etc., can solve the problem of photochromic window material limitation and avoid reaction Slow speed, strong anti-aging performance, and enhanced photochromic performance

Active Publication Date: 2020-08-04
建滔(佛冈)特种树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] There is no real manufacturer in the field of PVB photochromic in China. Due to technical and cost constraints, photochromic window materials are still limited to the glasses industry.

Method used

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  • Photochromic PVB film as well as preparation method and application thereof
  • Photochromic PVB film as well as preparation method and application thereof
  • Photochromic PVB film as well as preparation method and application thereof

Examples

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Embodiment 1

[0046] A photochromic PVB film, comprising the following raw materials:

[0047] PVB resin powder, plasticizer, antioxidant, UV absorber, silane coupling agent, adhesion modifier, WO 3 / TiO 2 Composite photochromic material.

[0048] Wherein, the PVB resin powder used has a hydroxyl content of 17-20wt%, a viscosity of 200-300cp (20°C), and a melt index (140°C / 21.6kg) of 0.8-1.2g / 10min.

[0049] The plasticizer used was triethylene glycol diisocaprylate (3GO plasticizer).

[0050] The antioxidant used is a mixture of antioxidant 1010 and antioxidant 168, and the mass ratio of antioxidant 1010 and antioxidant 168 is 1:1.

[0051] The UV absorber used is UV-326.

[0052] The silane coupling agents used are γ-glycidyl etheroxypropyl triethoxysilane (A-187) and β-(3,4, epoxycyclohexyl)-ethyltrimethoxysilane (A-186 ), the mass ratio of A-187 and A-186 is 1:1.

[0053] The cohesion regulator used is a mixture of magnesium acetate and potassium acetate, and the mass ratio of mag...

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Abstract

The invention discloses a photochromic PVB film as well as a preparation method and application thereof. The photochromic PVB film comprises PVB resin, a plasticizer, an antioxidant, a WO3 / TiO2 composite material and an auxiliary agent, wherein the auxiliary agent comprises at least one of an ultraviolet absorbent, a coupling agent and a binding power regulator. The photochromic PVB film can be applied to preparation of photochromic glass. The photochromic PVB film disclosed by the invention has the advantages of high discoloration reaction rate, strong ageing resistance, long discoloration duration, good thermal stability and the like, and compared with photochromism of an organic material, the inorganic photochromic material PVB film can effectively avoid the problems of low reaction rate, easiness in ageing, short discoloration duration, poor thermal stability and the like.

Description

technical field [0001] The invention relates to the technical field of polyvinyl butyral (PVB) materials, in particular to a photochromic PVB film and a preparation method and application thereof. Background technique [0002] The glass invented by modern humans based on natural lighting, while efficiently transmitting visible light, inevitably brings great discomfort to people in summer, that is, excessive heat enters the room, especially when large-area glass is used for lighting. cars and high-rise buildings with glass facades. For example, after the car stays under the scorching sun for an hour in summer, the temperature inside the car can rise above 60°C. This places an enormous energy load on the air conditioning system. Therefore, the energy saving and emission reduction of automobiles and architectural glass is of great significance in a low-carbon economy and society, and accordingly has become a research topic for a group of scientists who are interested in this....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/10C09J129/14C09J11/04C09J11/06C03C27/10
CPCC03C27/10C08K2003/2241C08K2003/2258C08K2201/011C09J11/04C09J11/06C09J129/14C09J7/10C09J7/30C08K13/02C08K3/22C08K5/1345C08K5/526
Inventor 林家宝
Owner 建滔(佛冈)特种树脂有限公司
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