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Board using crosslinked polylactic acid and method for preparing same

A technology of polylactic acid and polylactic acid resin, which is applied in the field of boards using cross-linked polylactic acid and its preparation, can solve the problems of lack of viscoelasticity, difficulty, polylactic acid being easily hydrolyzed, etc., and achieves easy disposal and improved melt strength. , the effect of easy thermal processing

Active Publication Date: 2014-11-26
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, this polylactic acid is easily hydrolyzed under the specified humidity and temperature conditions. Therefore, compared with the conventional polyvinyl chloride (PVC) resin, the board prepared by polylactic acid resin has some disadvantages in thermal lamination processing. Disadvantages of sticking to processing equipment or lack of viscoelasticity during high temperature processing, making it difficult to laminate into multi-layer processing operations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The method for preparing a board according to an embodiment of the present invention is characterized in that it includes the following steps: a step of mixing polylactic acid resin, a crosslinking agent, and a crosslinking auxiliary agent to prepare a polylactic acid resin mixture; thermally initiating the above polylactic acid resin mixture A step of performing cross-linking by cross-linking reaction; preparing a board-forming sheet comprising the above-mentioned cross-linked polylactic acid resin and 50 to 150 parts by weight of wood powder relative to 100 parts by weight of the above-mentioned cross-linked polylactic acid resin a step of forming a composition; and a step of forming a sheet by post-processing after thermoforming the above sheet-forming composition.

[0033] The preparation method of the plate according to another embodiment of the present invention is characterized in that it includes the following steps: mixing polylactic acid resin and crosslinking ...

Embodiment

[0053] With respect to 100 parts by weight of polylactic acid resin, add 1.0 parts by weight of thermally initiated crosslinking agent 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane and 0.5 parts by weight of crosslinking assistant After adding triallyl isocyanurate (TAIC), a twin-screw extruder (twin extruder) at 160° C. to 200° C. is used to prepare cross-linked polylactic acid.

[0054] With respect to 100 parts by weight of polylactic acid resin, after adding 1.0 parts by weight of a crosslinking aid triallyl isocyanurate (TAIC), use a twin-screw extruder at 160°C to 200°C to crosslink The additives are fully dispersed in polylactic acid. Crosslinked polylactic acid is prepared by irradiating the polylactic acid containing the above-mentioned crosslinking auxiliary agent with an electron beam of 10 kGy to 100 kGy.

[0055] The transparent layer, The printing layer and the equalization layer are prepared by using a composition containing 80 parts by weight of wood powder rel...

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Abstract

The present invention relates to a board using crosslinked polylactic acid and a method for preparing same, and more specifically, to a board using the crosslinked polylactic acid having superior processing properties during the preparation processe and water resistance properties after processing by using a composition comprising the crosslinked polylactic acid and wood powder, and to a method for preparing the board.

Description

technical field [0001] The present invention relates to a board utilizing cross-linked polylactic acid and a method for producing the same, and more particularly relates to a board comprising cross-linked polylactic acid and wood flour, thereby being excellent not only in processability during production but also in water resistance after processing plate and its preparation method. Background technique [0002] Boards using petroleum-based resins such as polyvinyl chloride (PVC) are widely used in buildings such as houses, villas, apartments, offices, and shops. [0003] The above board is prepared by extrusion or calendering using resin such as polyvinyl chloride (PVC). However, since all raw materials are obtained from limited resources such as crude oil, it is expected that problems such as supply and demand of raw materials will arise in the future due to the depletion of petroleum resources. [0004] In addition, considering the recent and increasing attention to env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N3/10B27N1/02C08L67/04
CPCB27N3/002C08L97/02C08L67/04B29C51/02B29K2311/14B29K2105/246B29C35/0866B29C51/002B29C2035/0877B29K2067/046B29K2105/0005B29K2105/16B29K2105/24B29K2401/00B27N3/04B27N3/10B27N1/02C08L2203/30
Inventor 黃承哲姜昌源孙芝香
Owner LG HAUSYS LTD