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Double-side delustered biodegradable sheet

A biodegradable and sheet technology, applied in the field of materials and biodegradable sheets, can solve the problems of strong plastic feeling, inability to effectively distinguish the surface appearance of biodegradable sheets, inconsistent environmental degradation characteristics, etc., and achieves ingenious design. Unique, suitable for large-scale promotion and application, the effect of reducing the cost of raw materials

Inactive Publication Date: 2012-02-15
TELI LONG SHANGHAI PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary formula structure makes biodegradable sheets indistinguishable from plastic sheets in appearance
In addition, because the apparent plasticity of ordinary biodegradable sheets is too strong, it does not conform to the environmental degradation characteristics of its materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Adopting described polylactic acid is 30% (weight), and described polyadipate-butylene terephthalate is 10% (weight), and described calcium carbonate is 50% (weight), and described auxiliary agent is 10% (weight). % (weight) (wherein monoglyceride 3% (weight), zinc stearate 3% (weight), coupling agent 2% (weight), color toner 2% (weight)), in the twin-screw extruder Extruded to form a double-sided matte biodegradable sheet 1.

Embodiment 2

[0020] Adopting described polylactic acid is 60% (weight), and described polyadipate-butylene terephthalate is 25% (weight), and described calcium carbonate is 10% (weight), and described auxiliary agent is 5% (weight). % (weight) (including 3% (weight) of monoglyceride, 1% (weight) of zinc stearate, and 1% (weight) of coupling agent), extruded in a twin-screw extruder to form a double-sided matte biological Degradation sheet 2.

Embodiment 3

[0022] Adopting described polylactic acid is 70% (weight), and described polyadipate-butylene terephthalate is 5% (weight), and described calcium carbonate is 15% (weight), and described auxiliary agent is 10% (weight). % (weight) (wherein monoglyceride 2% (weight), zinc stearate 2% (weight), coupling agent 3% (weight), color toner 3% (weight)), in twin-screw extruder Extruded to form a double-sided matte biodegradable sheet 3.

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PUM

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Abstract

The invention provides a double-side delustered biodegradable sheet, which is formed by extruding the mixture of 30-70 wt% of polylactic acid (PLA), 0-25 wt% of poly(butylene adipate-terephthalate) (PBAT), 10-50% of calcium carbonate and 0-10% of an auxiliary agent. The double-side delustered biodegradable sheet of the invention has a delustering effect on both sides. With an appearance similar to paper sense, the sheet in the invention can be effectively distinguished from a plastic sheet, so that the sheet can be better in accord with the environmental protection requirements of downstream customers from the outside to the inside. Also with greatly reduced production cost as well as artful and unique design, the biodegradable sheet provided in the invention is suitable for large scale promotion and application.

Description

technical field [0001] The present invention relates to the technical field of materials, more specifically, to the technical field of biodegradable sheets, in particular to a double-sided matting biodegradable sheet. Background technique [0002] In the field of ordinary biodegradable sheet and plastic sheet manufacturing, after the melt is extruded from the die lip, it is calendered and shaped by three rolls. The side of the sheet that is wrapped and calendered is the bright side, and the reverse side is not bright. The common formula structure makes the biodegradable sheet indistinguishable from the plastic sheet in appearance. In addition, because the appearance of ordinary biodegradable sheets is too plastic, it does not conform to the environmental degradation characteristics of its materials. [0003] In order to solve the above problems, it is necessary to provide a double-sided matte biodegradable sheet, whose appearance tends to be paper-like, and can be effective...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08K13/02C08K3/26
Inventor 陈光炬
Owner TELI LONG SHANGHAI PLASTICS
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