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Sunlight force-bearing plate and manufacturing method thereof

A manufacturing method and technology of endurance boards, which are applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of easy damage and delamination of the ultraviolet absorber layer, and achieve the goal of not being easily damaged , cost reduction effect

Inactive Publication Date: 2008-11-05
SHANGHAI HUILI TUVGAL SHEETAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a new solar endurance board on the one hand, to solve the problem that the ultraviolet absorber layer of the current polycarbonate solid board is easily damaged and delaminated.

Method used

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  • Sunlight force-bearing plate and manufacturing method thereof
  • Sunlight force-bearing plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] see figure 1 . A solar endurance board, comprising a sunshine endurance board body 1, a layer of ultraviolet absorber protective layers 21, 22 are respectively formed on the upper and lower surfaces of the sunshine endurance board body, and the thickness of each of the ultraviolet absorber protective layers 21, 22 is 30 microns to 50 microns Microns (depending on UV absorber concentration). The solar endurance board in this embodiment has a double-sided ultraviolet absorber protective layer.

Embodiment 2

[0020] see figure 2 . A solar endurance board, comprising a sunlight endurance board body 1, forming a layer of ultraviolet absorber protective layer 21 on the upper surface of the sunlight endurance board body. depends on the concentration). The solar endurance board in this embodiment has a protective layer of UV absorber on one side.

Embodiment 3

[0022] The ultraviolet absorber used is K-0743 to manufacture a 6cm thick solar endurance board, wherein the thickness of the ultraviolet absorber layer is 30 microns. The PC main material and the ultraviolet absorber are melted and extruded at 265°C and 240°C respectively in the extruder, converged in the mold, and cooled and shaped after being calendered by a three-roll calender. The temperatures of the upper, middle and lower three rolls are respectively 100°C, 115°C, 125°C.

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Abstract

The invention relates to a sunlight endurance plate which is a sunlight plate endurance plate (a solid plate). The invention also relates to a fabrication method of the endurance plate. The sunlight endurance plate comprises a sunlight endurance plate body and is characterized in that the sunlight endurance plate also comprises an ultraviolet absorbent protection layer which is formed on the surface of the sunlight endurance plate body by a coextrusion method; the ultraviolet absorbent protection layer has the thickness of 30-50 micrometers. The fabrication method is that PC main material and an ultraviolet absorbent are respectively melted and extruded out under high temperature in an extruding machine, gathered in a die and cooled and shaped after being treated with calendering by a three-roll calender. The invention manufactures the sunlight endurance plate by adopting the coextrusion method; the sunlight endurance plate manufactured according to the method of the invention is not easy to be damaged or fallen off by layers; the effect of the ultraviolet absorbent is sufficiently exerted and the cost is reduced.

Description

technical field [0001] The invention relates to a solar endurance board, that is, a solar endurance board (solid board); the invention also relates to a manufacturing method thereof. Background technique [0002] The scientific name of the sun board is polycarbonate board. Plastic sheets all have the problem of rapid aging due to exposure to ultraviolet light. Various manufacturers have adopted different methods to solve this problem in order to prolong the service life of the product. The most practical and effective method is to add UV absorbers to the product, but the difference in the adding process will cause a world of difference in the actual use effect. [0003] At first, everyone used the surface coating method, that is, to coat a layer of UV absorber on the surface of the board. However, due to the poor compatibility between PC and other materials, the rainwater after installation can easily wash off the surface coating. In addition, considering the possible dama...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B33/00B29C69/02B29C47/00B29C47/92B29C47/56B29C43/58B29C43/20B29C48/07B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/07B29C48/914B29C48/9185B29C48/906B29C2948/92895
Inventor 李敏骅顾民朱伟峰
Owner SHANGHAI HUILI TUVGAL SHEETAB