Halogen-free flame retardant polylactic acid composite material

A composite material, polylactic acid technology, applied in the field of halogen-free flame-retardant polylactic acid composite materials, to achieve the effect of maintaining the physical and mechanical properties of the material, reducing the amount of addition, and reducing hazards

Active Publication Date: 2012-05-23
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are few studies on high-efficiency halogen-free flame-retardant polylactic acid publicly reported. Therefore, it is extremely urgent to develop green and efficient flame-retardant polylactic acid materials.

Method used

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  • Halogen-free flame retardant polylactic acid composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] SO 4 2- / M x o y type solid superacid is solid superacid SO 4 2- / TiO 2 , antioxidant is the trade mark and is the commercialized antioxidant of 1010, and anti-melting dripping agent is SN3300 anti-melting dripping agent, and nucleating agent is talcum powder, and charring agent is pentaerythritol. Taking polylactic acid resin as the body, adding a mixture of ammonium polyphosphate and char-forming agent, solid super acid SO 4 2- / TiO 2 , antioxidant, nucleating agent and anti-melt-dripping agent, and obtain halogen-free flame-retardant polylactic acid composite material through melt blending. In terms of parts by weight, the total parts by weight is 100 parts, the mixture of ammonium polyphosphate and charcoal agent accounts for 10 parts, wherein ammonium polyphosphate accounts for 7.5 parts, charcoal agent accounts for 2.5 parts, SO 4 2- / M x o y Type solid super acid accounts for 1 part, antioxidant accounts for 0.2 part, nucleating agent accounts for 0.5...

Embodiment 2

[0020] SO 4 2- / M x o y type solid superacid is solid superacid SO 4 2- / ZrO 2 , all the other ingredients and content are identical with embodiment 1.

Embodiment 3

[0022] SO 4 2- / M x o y type solid superacid is solid superacid SO 4 2- / Fe 2 o 3 , all the other ingredients and content are identical with embodiment 1.

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Abstract

The invention discloses a halogen-free flame retardant polylactic acid composite material which is formed by taking polylactic resin as a body, and adding a mixture of ammonium polyphosphate and a char forming agent, SO42- / MxOy type solid super-strong acid, an antioxidizer, a nucleating agent and an anti-melting drop agent through melt blending. The halogen-free flame retardant polylactic acid composite material comprises the following components in parts by weight: 70 to 95 parts of the polylactic resin, 3 to 25 parts of the mixture of the ammonium polyphosphate and the char forming agent, 0.1 to 5 parts of the SO42- / MxOy type solid super-strong acid, 0.01 part to 3 parts of the antioxidizer, 0.1 part to 2 parts of the nucleating agent and 0.1 part to 10 parts of the anti-melting drop agent. Compared with the prior art, the halogen-free flame retardant polylactic acid composite material synergistically promotes the fire retardation performance of the polylactic acid composite material through the catalytic action of the SO42- / MxOy type solid super-strong acid and the synergistic effect char forming fire retardation action of a nitrogen and phosphorus intumescent type fire retardant, has the advantages of environmental protection and high fire retardation level, and can furthest reduce the affect of addition of auxiliaries to the physical and mechanical performance of polylactic acid body materials simultaneously.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant polylactic acid composite material. Background technique [0002] As one of the effective ways to alleviate the contradiction of petroleum resources and control environmental pollution, the bio-based polymer material industry is an important direction for the structural adjustment of the polymer material industry. Polylactic acid is currently the most commercially useful and promising bio-based polymer. Its raw material lactic acid comes from renewable non-staple agricultural product starch, which can be completely degraded into water and carbon dioxide in nature. At the same time, polylactic acid also has strength. High, good mechanical properties, strong plasticity, good biocompatibility, easy processing and molding, etc., so it is a green material with excellent performance. At present, the development and research of polylactic acid h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K13/02C08K3/32C08K3/30
Inventor 陶慷李娟薛立新朱琦良赵秀兰严庆
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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