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A kind of polyacrylic acid-quaternary ammonium salt modified ionic polymer film and its preparation method and application

A technology of ionic polymer and polyacrylic acid, which is applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of difficult application of laminated glass, insufficient mechanical strength, low transparency, etc., to achieve Improve processing fluidity, improve light transmittance, improve the effect of mechanical strength

Active Publication Date: 2021-11-12
盛鼎高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to insufficient mechanical strength and low transparency, it is difficult to apply to the field of laminated glass

Method used

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  • A kind of polyacrylic acid-quaternary ammonium salt modified ionic polymer film and its preparation method and application
  • A kind of polyacrylic acid-quaternary ammonium salt modified ionic polymer film and its preparation method and application
  • A kind of polyacrylic acid-quaternary ammonium salt modified ionic polymer film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Get commercially available ethylene-acrylic acid (sodium) copolymer (Dow PRIMACOR3004) as raw material, wherein, the molar content of acrylic acid structural unit is 9.7%, after being treated with sodium hydroxide, the molar ratio of the neutralized carboxylic acid functional group is carboxyl 45% of the total amount of acid functional groups, to obtain ethylene-methacrylic acid (sodium) copolymer, through the twin-screw extrusion casting process, the temperature of each section of the extruder from the feeding area to the die head is set to 100 ℃, 130 ℃, 150℃, 180℃, 190℃, 200℃, 190℃, 180℃, 180℃, 180℃, 170℃. The resulting interlayer film has a thickness of 1.2 mm and a tensile strength of 23.1 MPa. The interlayer film is laminated with two pieces of glass and then degassed in a vacuum bag to prepare laminated safety glass through a lamination furnace process. Sample 1 is obtained.

[0055] In addition, take the above-mentioned ethylene-methacrylic acid (sodium) copolyme...

Embodiment 2

[0063] Take commercially available ethylene-methacrylic acid copolymer powder as a raw material, wherein the molar content of methacrylic acid structural units is 11%, after being treated with sodium hydroxide, the molar ratio of neutralized carboxylic acid functional groups is the total amount of carboxylic acid functional groups 75% of it; polyacrylic acid-quaternary ammonium salt compound (wherein, X is Br in the molecular formula of quaternary ammonium salt, R 1 , R 2 , R 3Both are ethyl functional groups, n=2), the amount of the polyacrylic acid-quaternary ammonium salt compound is the total weight of the blend of ethylene-methacrylic acid (sodium) copolymer and polyacrylic acid-quaternary ammonium salt compound 5%, the number average molecular weight of polyacrylic acid in the polyacrylic acid-quaternary ammonium salt composite is 3000, and the molar ratio of acrylic acid structural unit to quaternary ammonium salt is 1:1. After blending, the single-screw extrusion cas...

Embodiment 3

[0065] Take commercially available ethylene-acrylic acid copolymer powder as a raw material, wherein the molar content of structural units of acrylic acid is 2%, after being treated with potassium hydroxide, the molar ratio of neutralized carboxylic acid functional groups is 10% of the total amount of carboxylic acid functional groups ; Add polyacrylic acid-quaternary ammonium salt compound (wherein, X is I in the molecular formula of quaternary ammonium salt, R 1 , R 2 , R 3 Both are ethyl functional groups, n=1), the consumption of the polyacrylic acid-quaternary ammonium salt compound is the total weight of the blend of ethylene-methacrylic acid (potassium) copolymer and polyacrylic acid-quaternary ammonium salt compound 2%, the number average molecular weight of polyacrylic acid in the polyacrylic acid-quaternary ammonium salt composite is 1500, and the ratio of acrylic acid structural unit to quaternary ammonium salt is 1:0.4. After blending, the twin-screw extrusion ca...

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Abstract

The invention discloses a polyacrylic acid-quaternary ammonium salt modified ionic polymer film and its preparation method and application. The ionic polymer film is obtained by adding polyacrylic acid-quaternary ammonium salt compound It is prepared by blending extrusion casting in the compound. By optimizing the addition amount of polyacrylic acid-quaternary ammonium salt compound in the ionomer, the processing fluidity of the ionomer can be significantly improved, and the mechanical strength of the ionomer film can be significantly improved, especially the impact resistance of the film can be improved. performance. At the same time, the light transmittance of the ionomer film can be improved within a certain range, and the haze of the ionomer film and laminated glass can be reduced. The ionomer film prepared by the present invention can be widely used in the preparation of The interlayer film of laminated glass can be used to prepare high-performance safety laminated glass with excellent impact resistance on conventional laminated glass production equipment.

Description

technical field [0001] The invention belongs to the technical field of safety glass, and in particular relates to a polyacrylic acid-quaternary ammonium salt modified ionic polymer film, a preparation method thereof and an application in safety laminated glass. Background technique [0002] Laminated glass is a kind of safety glass, which is usually provided with one or more layers of organic polymer interlayer film between two or more pieces of glass, and then undergoes special high-temperature pre-pressing (or vacuuming) and high-temperature After the high-pressure process, the glass and the organic polymer interlayer film are bonded together to form a composite glass product. [0003] According to different application scenarios, commonly used organic polymer interlayers mainly include EVA interlayer (ethylene-vinyl acetate copolymer), PVB interlayer (polyvinyl butyral), SGP interlayer (ethylene-methacrylic acid ionic copolymer), TPU interlayer (polyurethane elastomer). ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L23/08C08L33/02B32B17/10B32B27/30B32B27/06B32B33/00
CPCB32B17/10743B32B27/06B32B27/308B32B33/00B32B2307/412C08J5/18C08J2323/08C08J2433/02
Inventor 王超张辉
Owner 盛鼎高新材料有限公司