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Low-temperature-resistant and sound-proof PVB (polyvinyl butyral) glass intermediate film as well as preparation method and device

A technology for preparing devices and interlayer films, which can be applied to flat products, other household appliances, plastic recycling, etc., can solve problems such as poor sound insulation, easy cracking, and unreasonable proportioning, and achieve improved low temperature resistance, sound insulation performance, The effect of increasing the winding tightness

Active Publication Date: 2022-08-02
江苏百安达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the production process of the existing PVB interlayer, due to the unreasonable ratio of raw materials, it is easy to have the defects of insufficient low temperature resistance and poor sound insulation of the PVB interlayer. It is brittle and prone to breakage, which affects the appearance and performance of the laminated glass. Moreover, the extruded PVB interlayer film is rolled up using the existing device. The PVB interlayer film is prone to wrinkles during the winding process, and after winding There is a problem that the interlayer film cannot be paved when it is spread out, which affects subsequent use

Method used

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  • Low-temperature-resistant and sound-proof PVB (polyvinyl butyral) glass intermediate film as well as preparation method and device
  • Low-temperature-resistant and sound-proof PVB (polyvinyl butyral) glass intermediate film as well as preparation method and device
  • Low-temperature-resistant and sound-proof PVB (polyvinyl butyral) glass intermediate film as well as preparation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A PVB glass intermediate film with low temperature resistance and sound insulation, the manufacturing method thereof comprises the following steps:

[0062] S1. Put the raw materials into a pulverizer for pulverization and stirring after the raw materials are properly proportioned, and then move to a heating device for heating and melting to form a solution, and the heating temperature of the heating device is 150 ° C;

[0063] S2. The solution is transported into the extruder through a jet pump, and the sheet-like PVB film is extruded through the extruder to prepare a cellulose solution with a concentration of 9 wt%, and electrospinning is performed on the polyimide film. The electric field strength is 20kV, the receiving distance is 15cm, and the spinning rate is 0.2mL / h;

[0064] S3. The PVB film is placed between two PI films and the side with nanofibers is in contact with the PVB film, and then pressed with a vulcanizer at a temperature of 120°C to form a composite...

Embodiment 2

[0070] A PVB glass intermediate film with low temperature resistance and sound insulation, the manufacturing method thereof comprises the following steps:

[0071] S1. Put the raw materials into a pulverizer for pulverization and stirring after the raw materials are properly proportioned, and then move to a heating device for heating and melting to form a solution, and the heating temperature of the heating device is 160 ° C;

[0072] S2. The solution is transported to the extruder through a jet pump, and the sheet-like PVB film is extruded through the extruder to prepare a cellulose solution with a concentration of 13 wt%, and electrospinning is performed on the polyimide film. The electric field strength is 25kV, the receiving distance is 15cm, and the spinning rate is 0.3mL / h;

[0073] S3. The PVB film is placed between two PI films and the side with nanofibers is in contact with the PVB film, and then pressed with a vulcanizer at a temperature of 125°C to form a composite ...

Embodiment 3

[0079] A PVB glass intermediate film with low temperature resistance and sound insulation, the manufacturing method thereof comprises the following steps:

[0080] S1. Put the raw materials into a pulverizer for pulverization and stirring after the raw materials are properly proportioned, and then move to a heating device for heating and melting to form a solution, and the heating temperature of the heating device is 180 ° C;

[0081] S2. The solution is transported to the extruder through a jet pump, and the sheet-like PVB film is extruded through the extruder to prepare a cellulose solution with a concentration of 17 wt%, and electrospinning is performed on the polyimide film. The electric field strength is 25kV, the receiving distance is 20cm, and the spinning rate is 0.5mL / h;

[0082]S3. The PVB film is placed between two PI films and the side with nanofibers is in contact with the PVB film, and then pressed with a vulcanizer at a temperature of 130°C to form a composite f...

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Abstract

The invention relates to the technical field of intermediate film production equipment, in particular to a low-temperature-resistant sound-insulation PVB (polyvinyl butyral) glass intermediate film, a preparation method and a device. Comprising the following raw materials in percentage by weight: 60-80% of polyvinyl butyral, 1-5% of sepiolite fiber powder, 1-3% of nano silicon dioxide, 1-3% of nano zinc oxide, 10-20% of a plasticizer, 0.5-3% of a light stabilizer, 0.5-3% of a heat stabilizer, 0.5-3% of an antioxidant and 0.5-3% of organosilane. The PVB intermediate film provided by the invention has excellent low temperature resistance and sound insulation performance, the PVB intermediate film does not wrinkle in the rolling process, the rolled intermediate film can be flatly unfolded when being unfolded for use, and the use is not influenced.

Description

technical field [0001] The invention relates to the technical field of intermediate film production equipment, in particular to a low temperature and soundproof PVB glass intermediate film, a preparation method and a device. Background technique [0002] Since laminated glass has been widely used, various functional types of laminated glass have also been studied. The reason why laminated glass has safety, sound insulation and other characteristics is due to the properties of the interlayer film of laminated glass. The intermediate polymer film not only has the advantages of strong heat resistance, strong cold resistance, high mechanical strength, but also safety, sound insulation, heat insulation, security, shock resistance, sunshade and other properties. [0003] The interlayers commonly used for safety glass include polyvinyl butyral interlayers, ionic interlayers, ethylene-vinyl acetate copolymer interlayers, polyurethane interlayers, etc. Among them, PVB interlayers are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/14C08K7/10C08K3/36C08K3/22C08K5/12C08J5/18C08J5/12C08L1/02B29D7/01
CPCC08J5/18C08J5/121B29D7/01C08K2201/011C08K2003/2296C08J2329/14C08J2401/02Y02W30/62
Inventor 廖安胜
Owner 江苏百安达新材料有限公司
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