Composite of multilayer structure comprising polyester foam and polyester resin layer, and use thereof

A technology of polyester resin and compound, which is applied in the field of compound with multi-layer structure, can solve the problems of high melt viscosity, difficult to collect bubbles, low foaming rate, etc., and achieve the effect of improving the working environment

Pending Publication Date: 2018-04-17
HUVIS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the melt viscosity of polyester resin is high, it is important to control the viscosity of the molten resin when performing continuous extrusion foaming, but when mixing additives, the viscosity of the molten resin becomes more difficult to control
Specifically, in the case of mixing a separate functional additive during extrusion foaming of polyester resin, when the viscosity of the molten resin is low, bubbles generated by the foaming agent escape to the outside instead of being collected in the resin, When the viscosity of the molten resin is high, the generated air bubbles are difficult to collect in the resin, resulting in a low foaming rate
Therefore, the foaming rate may be lowered, and the appearance of the foamed molded article may be deteriorated

Method used

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  • Composite of multilayer structure comprising polyester foam and polyester resin layer, and use thereof
  • Composite of multilayer structure comprising polyester foam and polyester resin layer, and use thereof
  • Composite of multilayer structure comprising polyester foam and polyester resin layer, and use thereof

Examples

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Effect test

Embodiment 1

[0107] Embodiment 1: the preparation of polyester compound

[0108] In order to prepare the polyester compound according to the invention,

[0109] (1) First, 100 parts by weight of PET resin was dried at 130° C. to remove moisture. In the first extruder, PET resin from which moisture was removed, 1 part by weight of pyromellitic dianhydride (PMDA), 1 part by weight of talc, and 0.1 part by weight of Irganox (IRG 1010) were mixed and heated to 280°C to prepare a resin melt . Next, carbon dioxide gas was mixed as a foaming agent in the first extruder, and the resin melt was sent to the second extruder and cooled to 220°C. The cooled resin melt is extruded and expanded through a die, whereby a polyester foam is produced.

[0110] (2) Then, under the conditions of a pressure of 3kgf and a temperature of 250°C, a biaxially stretched film with a longitudinal elongation of 3 times, a transverse elongation of 1.5 times, and a thickness of 150 μm is foamed in polyester. The interf...

Embodiment 2

[0114] Embodiment 2: the preparation of polyester compound

[0115] A polyester composite was prepared in the same manner as in Example 1, except that 0.2 parts by weight of graphite was mixed based on 100 parts by weight of the resin when preparing the PET resin layer.

Embodiment 3

[0116] Embodiment 3: the preparation of polyester compound

[0117] A polyester compound was prepared in the same manner as in Example 1 except that a PET adhesive layer was formed between the PET foam and the PET resin layer.

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Abstract

The present invention relates to a composite of a multilayer structure comprising a polyester foam and a polyester resin layer, and a use thereof. A polyester composite according to the present invention provides a composite which is capable of improving a working environment, improves durability and strength and has light weight; is easy to reuse; and can be variously utilized for different usessuch as automobile interior and exterior materials or building insulation materials.

Description

technical field [0001] The present invention relates to a compound of a multilayer structure comprising a polyester foam and a polyester resin layer and uses thereof. Background technique [0002] Plastic foamed moldings are widely used throughout the industry due to properties such as excellent lightness, cushioning properties, heat insulation properties, moldability, and energy-saving properties thereof. Polymers, such as polystyrene, polyolefin, or polyvinyl chloride, are amorphous and have high melt viscosity, and their viscosity changes very little with temperature. These polymers are easy to foam, so they are widely used as heat insulation materials, structural materials, cushioning materials and packaging containers, etc. However, the aforementioned polymers are prone to fire, release environmental hormones, and have poor physical properties. [0003] On the other hand, polyester is an environmentally friendly material with excellent mechanical properties, heat resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08C08L67/03C08J5/12B32B27/06B32B5/18B32B27/36B32B7/12
CPCB32B7/12B32B27/06B32B27/08B32B27/36C08J5/12C08L67/03B32B5/245B32B5/32B32B27/065B32B27/12B32B27/18B32B2307/518B32B2307/546B32B2307/718B32B2307/732B32B2307/734B32B2419/00B32B2605/003B32B2307/212B32B5/18B32B2262/0276B32B2266/0264B32B5/02B32B2367/00B32B2605/00B60R13/0815B60Y2306/09C08J9/12C08J2201/03C08J2367/02E04B1/90
Inventor 李光熙许娓李承俊
Owner HUVIS CORP
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