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Composite material of shell micro powder filling bio-based resin and method for preparing same

A bio-based resin, shell micropowder technology, applied in the field of resin modification, can solve problems such as unseen research and reports

Active Publication Date: 2010-01-27
SHENZHEN HONGCAI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, shell micropowder is used to modify bio-based resins, and there are no related studies and reports.

Method used

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  • Composite material of shell micro powder filling bio-based resin and method for preparing same
  • Composite material of shell micro powder filling bio-based resin and method for preparing same
  • Composite material of shell micro powder filling bio-based resin and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Wash and dry 20 parts of shell micropowder (parts by mass, the same below), 2.0 parts of chelating titanate coupling agent (NDZ-311w) (diluted into a 1:2 triethylamine solution), B215 antioxidant 0.25 part of agent, 80 parts of polylactic acid (PLA), the Mn=30,000 of this polylactic acid, L content 60%, according to the technical scheme of indirect route, select injection molding machine to add relevant supporting mold to obtain disposable lunch box, flower pot, cutlery and other products. , The granulation process is at a temperature of 180°C to 200°C, and the screw speed is 80rpm; the injection molding process temperature is at 195°C to 205°C.

Embodiment 2

[0075] 30 parts of shell micropowder after washing and drying (mass parts, the same below), 1.2 parts of tolyl diisocyanate (TDI), 0.1 part of dibutyltin dilaurate, 0.25 parts of B561 antioxidant, polyhydroxybutyric acid-valeric acid 70 parts of ester (PHBV), the Mn=50,000 of this PHBV, HV% is 4%, according to the technical scheme of indirect route, selects the sheet forming machine for use, by adjusting the pressure roller pitch (0.6~3mm), obtains the different sheet of thickness The sheet is made into different shapes of disposable lunch boxes, plates, flower pots and other consumable common products under positive or negative pressure conditions while it is hot. The granulation process includes a temperature of 160°C-180°C, a screw speed of 85rpm, a hot-pressing process temperature of 167-180°C, and a pressure of 9-15MPa.

Embodiment 3

[0077] 20 parts (mass parts, the same below) of shell micropowder after cleaning and drying, 0.6 part of lysine triisocyanate (LTI), 0.1 part of dibutyltin dilaurate, 0.2 part of B900 antioxidant, polyhydroxybutyrate ( PHB) 80 parts, the Mn=40,000 of this PHB, by the technical scheme of direct route, select injection molding machine to add supporting flower pot, knife and fork mold to obtain disposable flower pot, knife and fork product. The granulation process is at a temperature of 160°C to 180°C and the screw speed at 90 rpm; the injection molding process temperature is at 165°C to 180°C.

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PUM

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Abstract

The invention provides a composite material of shell micro powder filling bio-based resin and a method for preparing the same. The composite material comprises the following component in percentage by mass: (1) 20 to 60 percent of shell micro powder, 40 to 80 percent of bio-based resin, 1.5 to 8 percent of coupling agent and 0.2 to 0.4 percent of anti-oxidant; and or 20 to 60 percent of shell micro powder, 40 to 80 percent of bio-based resin, 0.6 to 3 percent of isocyanate, 0.05 to 0.1 percent of organic tin or organic stannous catalyst, and 0.2 to 0.4 percent of anti-oxidant. The invention also discloses a method for preparing the composite material. The method has the advantages of utilizing the ultrasonic cavitation to grind and disperse the shell micro powder, simultaneously accelerating the grafting or chemical bonding of the coupling agent or isocyanate on the surface of the shell micro powder, greatly shortening the modification time of the shell micro powder and the forming period of the composite material, and improving the interface compatibility and the bonding strength of the shell micro powder and the bio-based resin. The composite material is widely applied in fields of the production and consumption of automobile interior parts, stationery, road blocks, sporting goods, food bags, refuse bags, disposable tablecloth, outdoor flower pots, canteens, knives and forks and the like.

Description

technical field [0001] The invention belongs to the field of resin modification, and in particular relates to preparing shell / bio-based resin composite material by crushing and classifying shell powder and filling it with bio-based resin after chemical modification, and the special application of the composite material in polymer materials. Background technique [0002] Shell is a composite material that contains a large amount of crystalline inorganic substances and natural polymers. Due to the many advantages of its natural organic / inorganic hybrid mineralized structure, more and more researchers have attracted more and more research workers in functional filling materials. interest of. In recent years, although there are many kinds of shells with different shapes and colors, their chemical composition is similar, mainly including calcium carbonate accounting for 95% (mass percentage) of the whole shell and a small amount of organic matter such as conchitin, protein, polys...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08K13/02C08K3/26C08K13/06C08K9/04
Inventor 吴香发顾群伍洋黎俊蒋志强周坚
Owner SHENZHEN HONGCAI NEW MATERIAL TECH
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