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High-temperature-resistant polylactic acid injection molded ceramic-like tableware and preparation method thereof

A polylactic acid and high temperature resistant technology, applied in the manufacture of heat-resistant composite materials and their products, and the field of polylactic acid toughening, can solve the problems of unenvironmental protection and unsafe imitation porcelain tableware, and achieve easy operation, high strength and surface gloss, The effect of high processing efficiency

Inactive Publication Date: 2020-04-28
JILIN COFCO BIOCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a high-temperature-resistant polylactic acid injection-molded imitation porcelain tableware and its preparation method to solve the problems of unsafe and unenvironmental protection of the imitation porcelain tableware

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh the following raw materials in parts by mass:

[0023] 70 parts of polylactic acid, 5 parts of toughening agent, 0.05 part of chain extender, 0.5 part of organic nucleating agent, 5 parts of inorganic nucleating agent, 0.05 part of antioxidant, 0.5 part of anti-hydrolysis agent; of which:

[0024] Polylactic acid is a mixed polylactic acid, poly-L-lactic acid is 95.75%, poly-D-lactic acid is 4.25%, the number-average molecular weight of polylactic acid is 100,000-200,000, and the melt index is 6g / 10min;

[0025] The toughening agent is glycidyl methacrylate grafted ethylene-octene copolymer (POE-GMA);

[0026] The chain extender is BASF ADR-4370;

[0027] The organic nucleating agent is a hydrazide nucleating agent (ADH);

[0028] The inorganic nucleating agent is talcum powder;

[0029] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester;

[0030] Anti-hydrolysis agent is polycarbodiimide;

[0031] Put the abov...

Embodiment 2

[0033] Weigh the following raw materials in parts by mass:

[0034] 80 parts of polylactic acid, 10 parts of toughening agent, 0.12 parts of chain extender, 0.8 parts of organic nucleating agent, 12 parts of inorganic nucleating agent, 0.08 parts of antioxidant, 1.2 parts of anti-hydrolysis agent;

[0035] Polylactic acid is a mixed polylactic acid, poly-L-lactic acid is 95.75%, poly-D-lactic acid is 4.25%, the number-average molecular weight of polylactic acid is 100,000-200,000, and the melt index is 6g / 10min.

[0036] The toughening agent is polybutylene adipate terephthalate (PBAT), thermoplastic polyurethane elastomer (TPU);

[0037] The chain extender is BASF ADR-4370.

[0038] The organic nucleating agent is polyamide (TMC), aromatic sulfonate derivative (LAK-301);

[0039] Inorganic nucleating agent is calcium carbonate, montmorillonite;

[0040] The antioxidant is tris(2,4-di-tert-butylphenyl) phosphite;

[0041] The anti-hydrolysis agent of the present invention ...

Embodiment 3

[0044] Weigh the following raw materials:

[0045] 90 parts of polylactic acid, 15 parts of toughening agent, 0.20 parts of chain extender, 1 part of organic nucleating agent, 20 parts of inorganic nucleating agent, 1.0 part of antioxidant, 2 parts of anti-hydrolysis agent;

[0046] Polylactic acid is a mixed polylactic acid, poly-L-lactic acid is 95.75%, poly-D-lactic acid is 4.25%, the number-average molecular weight of polylactic acid is 100,000-200,000, and the melt index is 6g / 10min;

[0047] The toughening agent is glycidyl methacrylate grafted ethylene-octene copolymer, thermoplastic polyurethane elastomer, carbon dioxide-based thermoplastic polyurethane elastomer;

[0048] The chain extender is BASF ADR-4370;

[0049] The organic nucleating agent is hydrazide nucleating agent (ADH), polyamide (TMC), phenyl phosphate zinc (PPZn);

[0050] The inorganic nucleating agent is talcum powder, calcium carbonate, silicon dioxide;

[0051] The antioxidant is tris(2,4-di-tert-...

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Abstract

The invention relates to high-temperature-resistant polylactic acid injection molded ceramic-like tableware and a preparation method thereof, and belongs to the field of high polymer materials. Raw materials comprise 70-90 parts of polylactic acid, 5-15 parts of a toughening agent, 0.05-0.20 part of a chain extender, 0.5-1 part of an organic nucleating agent, 5-20 parts of an inorganic nucleatingagent, 0.05-1.0 part of an antioxidant and 0.5-2 parts of an anti-hydrolysis agent. The high-temperature-resistant polylactic acid injection molded ceramic-like tableware and the method have the advantages that the process is simple and clear, high in processing efficiency and easy to operate; the toughening agent and the nucleating agent are used for synergistically modifying the polylactic acidso that the toughness of the polylactic acid is improved, the heat resistance of the polylactic acid material is achieved, and the toughness and heat resistance of the polylactic acid can be greatly improved. The organic nucleating agent and the inorganic nucleating agent are adopted, so that when the polymer is subjected to melt crystallization, the crystallization speed of the polymer is increased, the spherocrystal size is changed, the thermal deformation temperature of the polymer is remarkably increased, the application of the product is met, in-mold crystallization is used in the injection molding process of the product, the surface gloss of the product is improved, crystallization perfection can be further promoted by using the crystallization nucleating agent, and the product has higher strength and surface gloss.

Description

Technical field [0001] The invention relates to the field of polymer materials, and in particular to a polylactic acid toughened, heat-resistant composite material and a manufacturing method of its products. Background technique [0002] Traditional melamine tableware, also known as melamine tableware, is made from amino molding compounds. It is made by reacting melamine and formaldehyde under certain conditions to form melamine-formaldehyde resin, and then adding auxiliary materials such as curing agent, cellulose and colorants. The material is molded and pressed into imitation tableware. Tableware products made of imitation porcelain tableware materials are strong, smooth in surface, resistant to high temperature and water impact, not fragile, and have the characteristics of ceramic texture. They have become one of the indispensable materials for tableware manufacturing, especially in restaurants, restaurants and student canteens. It is widely used and is a characteristic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L79/00C08L51/06C08L75/04C08L67/02C08K13/02C08K3/34C08K3/26C08K5/00
CPCC08K2003/265C08L67/04C08L2201/08C08L2205/025C08L2205/035C08L2205/06C08L2205/24C08L2207/04C08L79/00C08L51/06C08K13/02C08K3/34C08K5/0083C08L75/04C08L67/02C08K3/26C08K3/346C08K3/36
Inventor 佟毅王文玲李义边俊甲吴延东唐明勋肖洋刘志刚
Owner JILIN COFCO BIOCHEM
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