Biodegradable polylactic acid-PBS-wood fiber compound foam material and preparation method thereof

A composite foam and biodegradable technology, which is applied in the field of composite materials, can solve problems such as insufficient mechanical properties, impact properties, and flame retardancy, and achieve the effects of good dispersion, high compatibility, and improved interfacial bonding properties

Inactive Publication Date: 2017-08-18
JMINDUSTRIES GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are insufficient mechanical properties, impact properties, and flame retardant properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A kind of biodegradable polylactic acid-PBS-wood fiber composite foam material is made by the raw material of following parts by weight (g):

[0021] Polylactic acid 35, PBS 30, poplar wood powder 40, sodium bicarbonate 15, dicumyl peroxide 5, nano calcium carbonate 9, KH550 8, ammonium polyphosphate 10, melamine 8, expandable graphite 6, coated red phosphorus 5. Appropriate amount of acrylic acid solution, ethanol, ethylene glycol, and distilled water.

[0022] A kind of biodegradable polylactic acid-PBS-wood fiber composite foam material is characterized in that, carries out according to the following steps:

[0023] a. Grind poplar wood powder, pass through a 40-mesh sieve, put it in a blast drying oven at 100-120°C for 3 hours, add it to the acrylic acid solution at 1:20, soak for 2 hours, filter, and then add it at 1:15 Soak in KH550 / ethanol solution for 3 hours, filter, wash with water for 3 times, and dry in an oven at 80-90°C for 4 hours to obtain modified wood...

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Abstract

The invention discloses a biodegradable polylactic acid-PBS-wood fiber compound foam material and a preparation technology thereof. The preparation technology is characterized by taking polylactic acid, PBS, poplar wood powder, sodium bicarbonate, dicumyl peroxide, nanometer calcium carbonate, KH550, ammonium polyphosphate, melamine, expansible graphite, coating red phosphorus and a crylic acid solution as raw materials. The crylic acid solution and KH550 / ethanol solution are used for soaking the poplar wood powder, so that the modified wood fiber has excellent dispersibility in matrix and is high in compatibility and the binding property with the interface of the matrix is improved; the tensile strength, bending strength and impact toughness of the composite material are promoted; the mechanical properties and heat resistance of the composite material are promoted; after ammonium polyphosphate is activated and modified with melamine, the ammonium polyphosphate is mixed and milled with the expansible graphite and coating red phosphorus; the components have a synergistic effect; and the acquired composite flame retardant is used for promoting the flame retardant property of the composite material.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a biodegradable polylactic acid-PBS-wood fiber composite foam material and a preparation process thereof. Background technique [0002] Wood-plastic composite materials use agricultural waste as the main raw material, which reduces the environmental pollution caused by plant straw and waste plastic incineration, has the advantages of environmental friendliness and sustainability, and is widely used in building materials, furniture, packaging and transportation, etc. industry. The research and application of wood-plastic composite materials are of great significance to the search for wood substitute materials. [0003] In his master's thesis "Preparation and Performance Research of Carbon Fiber Reinforced Wood Fiber / Polyethylene Composite Materials", Du Feng used chopped carbon fiber and continuous long carbon fiber to replace part of the wood fiber in the wood-plastic composit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L67/04C08L67/02C08K13/06C08K9/04C08K9/06C08K3/32C08K3/02C08K3/26C08K7/24C08J9/08B65D81/05
CPCB65D81/05C08J9/08C08J2203/02C08J2397/02C08J2467/02C08J2467/04C08K2201/003C08K2201/011C08L97/02C08L2201/02C08L2201/06C08L2201/08C08L2205/03C08L2205/16C08L67/04C08L67/02C08K13/06C08K9/04C08K9/06C08K2003/323C08K2003/026C08K2003/265C08K7/24Y02W90/10
Inventor 周洪杰周楠孙兴平于洋周煜
Owner JMINDUSTRIES GRP
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