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Production process of EVA glass diffusion interlayer

A production process and film technology, applied in the direction of adhesives, layered products, synthetic resin layered products, etc., can solve the problems of low structural strength, low peel strength and tensile strength, and achieve improved peel strength and tensile strength, The effect of improving structural strength and improving the ability to resist strong impact

Inactive Publication Date: 2018-01-19
TIANJIN SUNRAY PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing glass diffusion films have low structural strength, low peel strength and tensile strength with glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) The step of preparing masterbatch, when masterbatch base material adopts 190 ℃, melt index is 15g / 10min, VA content is the EVA resin of 28%, adds polystyrene powder, and the mass ratio of EVA resin and polystyrene powder is 3:1, using polymer wax as dispersant, using twin-screw extrusion process to prepare masterbatch; (2) The step of mixing masterbatch with EVA resin and coupling agent evenly, and the melt index of EVA resin at 190°C is 7g / 10min, the mass ratio of masterbatch and EVA resin is 4:100; (3) adopt the step of casting film forming process to generate EVA glass film.

[0012] Wherein, the polymer wax described in step (1) is selected as polyethylene wax; the coupling agent described in step (2) is selected as aminoethylaminopropyltrimethoxysilane; in step (3), casting The film process uses a single-screw extruder with an extrusion temperature of 100°C.

Embodiment 2

[0014] (1) (1) The step of preparing masterbatch, masterbatch base material adopts the EVA resin that melt index is 18g / 10min, VA content is 28% when masterbatch base material adopts 190 ℃, adds polystyrene powder, the mixture of EVA resin and polystyrene powder The mass ratio is 3:1, the polymer wax is used as the dispersant, and the masterbatch is prepared by twin-screw extrusion process; (2) The step of mixing the masterbatch with EVA resin and coupling agent evenly, and the EVA resin melts at 190°C The index is 25g / 10min, and the mass ratio of masterbatch to EVA resin is 4:100; (3) The step of producing EVA glass film by casting film forming process.

[0015] Wherein, the polymer wax described in step (1) is selected as polyethylene wax; the coupling agent described in step (2) is selected as aminopropyltrimethoxysilane; in step (3), the cast film-forming process adopts Single-screw extruder, extrusion temperature is 95°C.

Embodiment 3

[0017] (1) The step of preparing masterbatch, masterbatch base material adopts the EVA resin that melt index is 20g / 10min, VA content is 28% when masterbatch base material adopts 190 ℃, adds polystyrene powder, the mass ratio of EVA resin and polystyrene powder is 3:1, using polymer wax as dispersant, using twin-screw extrusion process to prepare masterbatch; (2) The step of mixing masterbatch with EVA resin and coupling agent evenly, the melt index of EVA resin is 38g at 190°C / 10min, the mass ratio of masterbatch and EVA resin is 4:100; (3) adopt the step of casting film forming process to generate EVA glass film.

[0018] Wherein, the polymer wax described in step (1) is selected as EVA wax; the coupling agent described in step (2) is selected as vinyltriethoxysilane; Screw extruder, the extrusion temperature is 140°C.

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Abstract

The invention relates to a production process of EVA glass diffusion interlayer. The production process comprises the following steps: (1) preparing masterbatch: EVA resin with melt index of 15-20 g / 10 min at 190 DEG C and VA content of 28% is used as a masterbatch base material, polystyrene powder is added, the EVA resin and the polystyrene powder are in mass ratio of 3: 1, polymer wax is used asa dispersant, and the masterbatch is prepared with a twin-screw extrusion process; (2) evenly mixing the masterbatch with the EVA resin and a coupling agent, wherein the melting index of the EVA resin at 190 DEG C is 5-40 g / 10 min, and the mass ratio of the masterbatch to the EVA resin is 4:100; (3) generating the EVA glass interlayer with a film casting process. According to the production process of the EVA glass diffusion interlayer, the EVA material is adopted to replace a traditional PVB material, and the low-temperature forming process is adopted in the production process, so that the structural strength of the glass diffusion interlayer is improved; the strong impact force resisting capability of glass can be obviously improved when the EVA glass diffusion interlayer is applied tothe glass, and meanwhile, the peeling strength and the tensile strength between the EVA glass diffusion interlayer and the glass are improved.

Description

technical field [0001] The invention relates to a production process of an EVA glass diffusion film. Background technique [0002] In the field of architectural decoration, laminated glass has been more and more widely used due to its excellent characteristics such as beauty and firmness. Laminated glass includes a glass film layer in the center and glass on both sides. Anti-smash / explosion-proof glass is a new type of special glass product with a sandwich structure formed by compounding glass film into the middle of two layers of glass, after high temperature and high pressure gluing. The existing glass diffusion film has low structural strength, low peeling strength and tensile strength with glass. Contents of the invention [0003] The present invention provides a kind of production technology of EVA glass diffusion film in order to solve the technical problem existing in the known technology, solves the problem existing in the background technology. [0004] The tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J123/08C09J125/06C09J11/06C03C27/12B32B27/30B32B27/08B32B27/18
Inventor 崔九峰
Owner TIANJIN SUNRAY PLASTIC PROD
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