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Heat-resistant completely biodegradable composite material for injection molded product and formula and preparation method of heat-resistant completely biodegradable composite material

A technology for biodegradable and injection-molded products, applied in the field of heat-resistant fully biodegradable composite materials for injection-molded products and their formulation and preparation, which can solve the problems of complex process, high relative cost, insufficient heat resistance, and insufficient mechanical properties of materials, etc. problem, to achieve the effect of simple process

Active Publication Date: 2015-07-22
SUZHOU HANFENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prepared materials are relatively costly and complicated, and the heat resistance and mechanical properties of the material are not superior enough.

Method used

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  • Heat-resistant completely biodegradable composite material for injection molded product and formula and preparation method of heat-resistant completely biodegradable composite material
  • Heat-resistant completely biodegradable composite material for injection molded product and formula and preparation method of heat-resistant completely biodegradable composite material
  • Heat-resistant completely biodegradable composite material for injection molded product and formula and preparation method of heat-resistant completely biodegradable composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Material mixing: Calculated by weight, first add 35 parts of fillers to a high-speed mixer, dehydrate at a temperature of 80°C for 25 minutes, wherein the filler is a mixture of heavy calcium carbonate and talcum powder, and heavy calcium carbonate and The parts of talcum powder are 20 parts and 15 parts respectively, then add 5 parts of silane coupling agent and stir for 2 minutes, then add 3 parts of synergist and stir for 2 minutes, wherein the synergist is a mixture of erucic acid and oleic acid, and erucic acid and oleic acid are 1 part and 2 parts respectively, and finally add 1 part of paraffin wax, 1 part of Hangzhou Ximao TMB-5000 and 50 parts of fully biodegradable resin, stir for 5 minutes, and discharge the material, wherein the fully biodegradable resin is polymer A mixture of butylene succinate-co-butylene terephthalate (PBST) and polybutylene succinate (PBS), and the number of parts of PBST and PBS is 20 parts and 30 parts respectively, the whole The ...

Embodiment 2

[0033] (1) Material mixing: Calculated by weight ratio, first add 20 parts of filler to a high-speed mixer, dehydrate at a temperature of 100°C for 15 minutes, wherein the filler is a mixture of talcum powder and calcium sulfate whiskers, and talcum powder, calcium sulfate whiskers The parts are 10 parts and 10 parts respectively, then add 3 parts of titanate coupling agent, stir for 3 minutes, then add 2 parts of synergist and stir for 3 minutes, wherein the synergist is a mixture of erucic acid and stearic acid, and erucic acid The parts of stearic acid and stearic acid are 1 part and 1 part respectively, and finally add 3 parts of dispersant, 2 parts of nucleating agent and 70 parts of complete biodegradable resin, stir for 4 minutes, and discharge, wherein the dispersant is calcium stearate , zinc stearate, and paraffin, and the parts of calcium stearate, zinc stearate, and paraffin are 1 part, 1 part, and 1 part respectively, and the nucleating agent is TMC-300, Shanxi Ins...

Embodiment 3

[0037](1) Material mixing: Calculated by weight ratio, first put 15 parts of filler into a high-speed mixer, dehydrate at a temperature of 120°C for 10 minutes, wherein the filler is a mixture of montmorillonite and glass fiber, and the mixture of montmorillonite and glass fiber The parts are 10 parts and 5 parts respectively, then add 1 part of aluminate coupling agent, stir for 5 minutes, add 1 part of oleic acid, stir for 5 minutes, finally add 5 parts of dispersant, 3 parts of nucleating agent and 75 parts of complete biological Degrade the resin, stir for 3 minutes, and discharge, wherein the dispersant is a mixture of calcium stearate, zinc stearate, paraffin, erucamide, N,N-bisstearamide, and calcium stearate, stearin The parts of zinc acid, paraffin, erucamide, and N,N-bisstearamide are 1 part, 1 part, 1 part, 1 part, 1 part respectively, and the nucleating agent is Hangzhou Ximao TMP-3000, TMC -300, a mixture of metal salts of hypophosphite compounds, and the parts of...

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Abstract

The invention relates to a heat-resistant completely biodegradable composite material for an injection molded product and a formula and a preparation method of the heat-resistant completely biodegradable composite material. The invention aims at providing the heat-resistant completely biodegradable composite material for the injection molded product and the formula and the preparation method of the heat-resistant completely biodegradable composite material. The heat-resistant completely biodegradable composite material has the following physical properties: the Vicat temperature is 120-160 DEG C; the tensile strength is 60-110MPa; the elongation at break is 5-20%; the Shore D surface hardness is 80-90; and the melt mass-flow rate is 5-15g / 10min. The formula of the material comprises completely biodegradable resin, a filler, a coupling agent, a synergist, a nucleating agent component and a dispersant; the preparation method of the formula of the material comprises the steps of mixing the materials and performing spiral extrusion and discharge; and the heat-resistant completely biodegradable composite material provided by the invention has the advantages that a process for preparing the material is simple and the material is completely biodegradable.

Description

technical field [0001] The invention relates to a heat-resistant fully biodegradable composite material for injection molding products and its formulation and preparation method. Background technique [0002] The fully biodegradable composite material is a fully biodegradable resin (polylactic acid (PLA), polybutylene succinate (PBS), polybutylene terephthalate-adipate (PBAT), polybutylene butanediol-co-butylene terephthalate (PBST) etc.) one or more kinds with plant fibers or inorganic fillers (calcium carbonate, talcum powder, mica powder, montmorillonite, calcium sulfate whiskers, Glass fiber, etc.) one or two or more kinds are mixed and then extruded and granulated by a twin-screw extruder. It can be used in high-end product fields such as disposable tableware (knife, fork, spoon), electronic product casing, electronic product base, and electronic product bottom bracket. [0003] However, most of the fully biodegradable composite materials currently on the market are n...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L69/00C08K13/04C08K13/02C08K3/26C08K3/34C08K3/30C08K7/08C08K7/14C08K3/22B29B9/06B29C47/92B29C48/92
Inventor 余润保姜凯林奇刘小文黄祥秋
Owner SUZHOU HANFENG NEW MATERIAL
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