A mirror glass steel plate, its preparation device and its preparation method

A technology of glass fiber reinforced plastics and plates, which is applied to chemical instruments and methods, glass/slag layered products, flat products, etc. It can solve the problems of poor surface quality, unsightly appearance, and increased gel coat of glass fiber reinforced plastics, and achieve surface gloss and mechanical properties. Improvement, surface gloss and mechanical properties are remarkable, and the effect of solving quality problems

Active Publication Date: 2022-03-18
南京德嘉玻璃钢材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing gel coat has a certain improvement in mechanical properties and corrosion resistance, the volume shrinkage rate before and after curing is relatively large, about 8%, resulting in poor surface quality of FRP, and only by increasing the thickness of the gel coat layer, It cannot fundamentally solve the volume shrinkage problem of the gel coat and other quality problems on the surface of FRP
At the same time, the existing FRP also has problems such as uneven surface, not smooth, easy to dust, unsightly, and lines of glass fiber.

Method used

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  • A mirror glass steel plate, its preparation device and its preparation method
  • A mirror glass steel plate, its preparation device and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] A method for preparing a mirror-finished glass steel plate, comprising the following steps connected in sequence:

[0038] 1) Unwind the PET film with a thickness of 25 μm on the first conveyor belt, apply a zero-shrink gel coat on the PET film with a gel coat applicator, and use a scraper to control the thickness of the zero-shrink gel coat to 0.15mm;

[0039] 2) The material obtained in step 1) enters the first curing chamber for curing, the curing temperature is 25°C, and the curing time is 18 minutes;

[0040] 3) The material obtained in step 2) flows out onto the second conveyor belt, and merges with the glass fiber surface mat unrolled by the glass fiber surface mat unwinding device, and then applies unsaturated resin on the surface of the glass fiber surface mat by the first sizing roller , part of the unsaturated resin will penetrate the gel coat layer at the bottom of the glass fiber surface mat, and the weight of the glass fiber surface mat is 60g / m 2 , the u...

Embodiment 2

[0052] It is basically the same as Example 1, except that the unsaturated resin used in step 3) and step 5) is unsaturated resin 196, and the tensile strength of the mirror glass steel plate is 252 MPa.

Embodiment 3

[0054] Basically the same as Example 1, the difference is: in step 2), the curing temperature is 35°C, and the curing time is 18min; in step 4), the curing temperature is 60°C, and the curing time is 3min; in step 6), the curing The temperature is 60°C, the curing time is 3min, and the tensile strength of the mirror glass steel plate is 190MPa.

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Abstract

The invention discloses a mirror glass steel plate, its preparation device and its preparation method. The glass steel plate comprises a PET film layer, a zero-shrinkage gel coat layer, a first unsaturated resin layer, and a glass fiber surface mat successively connected from top to bottom. Layer, second unsaturated resin layer, glass fiber chopped strand mat layer and third unsaturated resin layer. The preparation device comprises a first conveyor belt, a first curing chamber, a second conveyor belt, a second curing chamber, a third conveyor belt, a third curing chamber, a fourth conveyor belt and a cutting device connected in sequence; above the first conveyor belt A PET film unwinding device, a gel coat applicator and a scraper are arranged in sequence from upstream to downstream; a glass fiber surface mat unwinding device and a first sizing roller are arranged in sequence above the second conveyor belt from upstream to downstream ; Above the third conveyor belt, there are a glass fiber chopped strand unwinding device and a second sizing roller in sequence from upstream to downstream. The surface smoothness, surface gloss and mechanical properties of the above-mentioned FRP sheets are significantly improved; the shrinkage rate of the gel coat is zero.

Description

technical field [0001] The invention relates to a mirror glass steel plate, a preparation device and a preparation method thereof, and belongs to the field of glass steel plates. Background technique [0002] FRP is fiber-reinforced plastic, which has the advantages of strong corrosion resistance and good designability. It is widely used in construction industry, chemical industry, automobile and railway transportation industry, highway construction, water transportation tools, electrical industrial communication engineering and other fields. . [0003] Gel coat resin is a special resin, which is a special resin for making the gel coat layer of FRP products. It mainly plays the role of protecting FRP products, prolonging its service life and decorating its surface. It is crucial to the quality of FRP products. influences. [0004] With the rapid development of the FRP industry, the requirements for the quality, appearance and surface gel coat of FRP products are constantly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/12B32B27/36B32B17/04B32B17/10B32B7/12C09D167/06C09D131/04C09D125/06C09D7/61B29D7/01
CPCB32B5/02B32B27/12B32B27/36B32B17/10B32B7/12C09D167/06C09D7/61C09D7/70B29D7/01B32B2262/101B32B2260/021B32B2260/046B32B2605/00C08L2205/035C08L2205/025C08K2003/2241C08L31/04C08L25/06C08L67/06C08K13/04C08K7/26C08K3/22
Inventor 谷孝明
Owner 南京德嘉玻璃钢材料有限公司
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