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Method for extracting 2 - ethyl hexenal in polyvinyl butyral acetal, and measuring content

A technology of polyvinyl butyral resin and ethyl hexenal, which is applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of difficult PVB resin control and content determination, difficult separation and determination, etc.

Inactive Publication Date: 2006-12-06
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

[0005] Since ET2H is an unstable aldehyde, it is difficult to separate and measure it in PVB resin, so it is difficult to control the production process of PVB resin and determine its content

Method used

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  • Method for extracting 2 - ethyl hexenal in polyvinyl butyral acetal, and measuring content
  • Method for extracting 2 - ethyl hexenal in polyvinyl butyral acetal, and measuring content
  • Method for extracting 2 - ethyl hexenal in polyvinyl butyral acetal, and measuring content

Examples

Experimental program
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Embodiment 1

[0103] Embodiment 1: Get the PVB resin of Germany WACKER company that particle diameter is 20~400 μm, trade mark: LL4190 batch number is: 5112124, test according to the above-mentioned steps, record the concentration wt% of ET2H in the sample and be 0.018%.

Embodiment 2

[0104] Embodiment 2: Get the PVB resin for film of American DuPont Company whose particle size is 80~400 μm, batch number: 20040315, carry out test according to the above-mentioned steps, record the concentration wt% of ET2H in the sample to be 0.006%.

Embodiment 3

[0105] Example 3: Take Tianjin Yanhua New Material Co., Ltd. PVB resin for film with a particle size of 50-300 μm, batch number: 050214, and test according to the above steps, and the concentration wt% of ET2H in the sample is found to be 0.023%.

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Abstract

The invention discloses a distilling and testing method for 2-ethylhexene aldehyde in making polyvinyl butyral resin. It could test the content of 2-ethylhexene aldehyde and gains the optical feature of PVB film. It could conquer the air bubble caused by qualm domino effect and degradation with aging the vehicle windshield.

Description

technical field [0001] The invention relates to a method for purifying polyvinyl butyral resin (PVB), in particular to a method for extracting and determining the content of internal 2-ethylhexenal (ET2H) in polyvinyl butyral (PVB) resin. Background technique [0002] In the mid-1960s, the United States developed a high-penetration-resistant polyvinyl butyral resin (PVB) film, whose impact strength is three times higher than that of ordinary tempered glass. The safety glass with PVB film as the interlayer material quickly entered the automobile window market, and developed into the only irreplaceable product for the front windshield of the car. This kind of laminated safety glass has multiple functions such as impact resistance, penetration resistance, good optical performance, noise control, UV protection and structural improvement, and it is also widely used in construction and other fields, such as building curtain walls, building canopies, Shopping mall windows, bank co...

Claims

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Application Information

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IPC IPC(8): G01N30/06G01N30/86
Inventor 李国东夏欣颖陈清华陆桂芬嵇相阳
Owner 天津市燕化新材料有限公司
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