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A method for preparing uniformly distributed large-thickness polyester-reinforced acrylic sheets

An acrylate, evenly distributed technology, used in flat products, other household appliances, fiber processing, etc., can solve the problems of disorderly dispersion of the overall performance of the material, uneven distribution of polyester silk, and inability to meet higher requirements for updating

Active Publication Date: 2019-12-17
锦西化工研究院有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In December 1994, my country published the "D-1 Polyester Fabric Reinforced Acrylic Sheet Manufacturing Process" aviation industry standard. This technology and process can only produce small-sized sheets. The uneven distribution within its structure leads to irregular and disordered dispersion of the overall performance of the material, which affects the load-bearing capacity of the edge joints of various types of industrial equipment skeletons and brings safety hazards, thus failing to meet the requirements of various types of industrial equipment for organic Newer and higher requirements for edge connections of transparent glass parts

Method used

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  • A method for preparing uniformly distributed large-thickness polyester-reinforced acrylic sheets
  • A method for preparing uniformly distributed large-thickness polyester-reinforced acrylic sheets
  • A method for preparing uniformly distributed large-thickness polyester-reinforced acrylic sheets

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Embodiment 1

[0014] Embodiment 1: 655 type polyester silks are cut into prescribed size, stand-by after washing, drying, ironing; 70Kg of methyl methacrylate (MMA) that is refined qualified (purity reaches more than 99.5%), press MMA 100 parts ( The following are all parts by mass), 0.003 parts of initiator A (ABN) and 0.05 parts of light resistance agent (UVP) are added in proportion to the polymerization kettle, stirred and heated to 75 ° C ~ 80 ° C, and the reaction is maintained until the viscosity of the slurry reaches 12s. Cool down to below 40°C and add 0.002 parts of initiator B (BPO), stir well and then cool down to room temperature. The prepared MMA slurry is vacuum treated for 30 minutes at room temperature and (0.073-0.080) MPa vacuum for degassing. Immerse the spare 655-type polyester silk single layer in the degassed MMA slurry, remove the air between the polyester silk filaments by vibration, and the polyester silk will be completely soaked after about 0.5h. Lay the infiltra...

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Abstract

The invention relates to a novel method for preparing a large-thickness polyester reinforced acrylic ester plate with uniformly distributed polyester silk, and particularly relates to a method for preparing polyester sheets by infiltration polymerization of single-layer polyester silk and enabling the polyester sheets to be subjected to secondary polymerization after being laminated to form the polyester reinforced acrylic ester plate with large thickness and the uniformly-distributed polyester silk inside the polyester sheets. The method is a novel preparation method of composite materials. According to the method, 655 type polyester silk and MMA are adopted, the polyester sheets are polymerized by using a composite initiator, and the polyester sheets are cut and laminated and are fixed in a specially-made model, MMA slurry with certain viscosity is injected, and the secondary polymerization is carried out. The mass ratio of the polyester silk to methyl methacrylate is 70 (+ / -10): 100. The polyester-reinforced acrylic ester plates with the thickness up to 50 mm and uniformly distributed in the inner structure of the plates are prepared.

Description

technical field [0001] The invention relates to a new method for preparing a large-thickness polyester reinforced acrylic sheet with uniform distribution of polyester silk, especially a polyester thin sheet prepared by soaking and polymerizing a single layer of polyester silk, which is laminated and then polymerized into a large-thickness polyester silk The method of evenly distributing the polyester reinforced acrylate sheet inside it is a new method for preparing composite materials. Background technique [0002] Polyester reinforced acrylic sheet is a composite material, mainly used in the connection between plexiglass parts and industrial equipment skeleton. The connection made of polyester reinforced acrylic sheet can transfer the external load borne by the transparent plexiglass part to the industrial preparation frame. . In recent years, plexiglass has become more and more widely used due to its excellent physical and mechanical properties. It is used as canopy, wind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D7/01C08F120/14D06M14/14B29K33/04
CPCB29D7/01B29K2033/12C08F120/14D06M14/14
Inventor 郑飞杜斌刘雅娟张林海黄燕
Owner 锦西化工研究院有限公司
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