Polylactic-acid ceramic-imitating material and preparation method thereof

A technology of imitation porcelain material and polylactic acid, which is applied in the field of polylactic acid plasticization, heat-resistant composite materials and its manufacturing, can solve the problems of poor toughness and thermal deformation temperature of polylactic acid, improve surface gloss, increase total crystallization speed, increase Effect of heat deflection temperature

Inactive Publication Date: 2017-05-31
JILIN COFCO BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a polylactic acid imitation porcelain material and its preparation method to solve the problems of poor toughness and thermal deformation temperature of polylactic acid

Method used

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  • Polylactic-acid ceramic-imitating material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] It is made from the following raw materials in parts by weight:

[0027] 60 parts of polylactic acid resin,

[0028] 1 part tributyl citrate,

[0029] 0.3 parts of polyhydrazide imine compounds,

[0030] 10 parts of talcum powder,

[0031] 0.2 parts of stearylamide,

[0032] Mix the polylactic acid resin, plasticizer, organic nucleating agent, inorganic nucleating agent, and crystallization accelerator with a high-speed mixer, then add it to an internal mixer for mixing, melt and blend through a twin-screw extruder, and screw extrude The length-to-diameter ratio of the screw of the machine is 35:1, and the temperature in each area of ​​the equipment is 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, 200°C, after which the strands are extruded, water-cooled, moisture-absorbed, and pelletized. The obtained granular composite material is airtightly stored after being dried to prevent moisture.

Embodiment 2

[0034] It is made from the following raw materials in parts by weight:

[0035] 75 parts of polylactic acid resin,

[0036] 5.5 parts of polyethylene glycol,

[0037] 0.7 parts of polyhydrazide imine compounds,

[0038] 15 parts of talcum powder,

[0039] 5.0 parts of erucamide;

[0040] Mix the polylactic acid resin, plasticizer, organic nucleating agent, inorganic nucleating agent, and crystallization accelerator with a high-speed mixer, then add it to an internal mixer for mixing, melt and blend through a twin-screw extruder, and screw extrude The length-to-diameter ratio of the screw of the machine is 40:1, and the temperature of each zone of the equipment is 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, 200°C, and then extrudes the strands, water-cools, absorbs moisture, and pelletizes. The obtained granular composite material is airtightly stored after being dried to prevent moisture.

Embodiment 3

[0042] It is made from the following raw materials in parts by weight:

[0043] 90 parts of polylactic acid resin,

[0044] 10 parts of epoxy soybean oil,

[0045] 1 part of polyhydrazide imine compound,

[0046] 20 parts of talcum powder,

[0047] 10 parts of ethylene bis stearamide,

[0048] Mix the polylactic acid resin, plasticizer, organic nucleating agent, inorganic nucleating agent, and crystallization accelerator with a high-speed mixer, then add it to an internal mixer for mixing, melt and blend through a twin-screw extruder, and screw extrude The length-to-diameter ratio of the screw of the machine is 45:1, and the temperatures in each area of ​​the equipment are 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, and 200°C, after which the strands are extruded, water-cooled, moisture-absorbed, and pelletized. The obtained granular composite material is airtightly stored after being dried to prevent moisture.

[0049] Further illustrate the effect of the present invention...

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Abstract

The invention relates to a polylactic-acid ceramic-imitating material and a preparation method thereof and belongs to the field of macromolecular materials. The polylactic-acid ceramic-imitating material is prepared from the following raw materials in parts by weight: 60-90 parts of polylactic-acid resin, 1-10 parts of plasticizer, 0.3-1 part of organic nucleating agent, 10-20 parts of inorganic nucleating agent and 0.2-10 parts of crystallization accelerant. The polylactic-acid ceramic-imitating material is extensively applied to all types of polylactic acids, particularly heat-resistant polylactic acid with the thermal deformation temperature of 105 DEG C or above, products made from polylactic-acid materials can enter the field of daily application and replace a majority of the traditional petroleum-based plastic products. The toughness and heat resistance of polylactic acid can be improved greatly; the surface gloss of the products is improved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polylactic acid plasticized and heat-resistant composite material and a manufacturing method thereof. Background technique [0002] Polylactic acid (abbreviated as PLA) is a biodegradable resin. It is made of lactic acid as a monomer by polycondensation of lactic acid or ring-opening polymerization of lactic acid dimer-lactide. Polylactic acid has good biodegradability , Under composting conditions, it can degrade more than 80% within 100 days. Polylactic acid is a polymer with excellent biocompatibility and biodegradability. It is derived from renewable resource crops. The most prominent advantage is biodegradability, which can be completely decomposed by natural microorganisms, and finally produces carbon dioxide and water, does not pollute the environment. [0003] Polylactic acid has high mechanical strength, but poor toughness. The tensile strength generally exceeds 45MP...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L71/02C08L91/00C08K13/02C08K5/11C08K3/34C08K5/20B29C47/92B29C48/92
CPCC08L67/04B29C48/92B29C2948/92704C08L2201/06C08L2201/08C08L2205/025C08L2205/035C08L2205/24C08L71/02C08L91/00C08K3/34C08K5/20C08K13/02C08K5/11
Inventor 佟毅李义白岚刘志刚王文玲吴延东赵雪松吴杰刘艳波刘跃芹
Owner JILIN COFCO BIOCHEM
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