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Antibacterial HDPE plastic chair suitable for outdoor use and preparation method thereof

A plastic and outdoor technology, applied in the field of plastic chairs, can solve the problems of high human toxicity, poor temperature resistance, environmental pollution, etc., and achieve the effect of good processing performance, good stability and dispersion, and simple molding process

Pending Publication Date: 2020-08-18
陈志益
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation method of HDPE antibacterial plastics is mainly made by adding a small amount of antibacterial agents, blending and compounding, and its active ingredients are antibacterial agents. These antibacterial agents include inorganic antibacterial agents and organic antibacterial agents. Plastic thermoforming process is stable and widely used, but most inorganic antibacterial agents are heavy metal ions, such as nano-silver, nano-copper, etc., which are highly toxic to the human body and cause environmental pollution
However, organic antibacterial agents have poor temperature resistance, and there will be dissolution and precipitation after long-term use.

Method used

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  • Antibacterial HDPE plastic chair suitable for outdoor use and preparation method thereof
  • Antibacterial HDPE plastic chair suitable for outdoor use and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] An antibacterial HDPE plastic chair suitable for outdoor use, its raw materials include: high-density polyethylene 100kg, polypropylene 15kg, ethylene-vinyl acetate copolymer 6kg, carboxylated polypropylene 1kg, cedar oil 2kg, epoxy soybean oil 0.5kg , sodium stearate 1kg, magnesium oxide 1kg, highly stable antibacterial agent 4kg, vinyl succinic anhydride grafted polypropylene 1kg, diphenylamine 2kg, phenyl o-hydroxybenzoate 1kg.

[0027] The melt flow rate (230°C / 2.16kg) of polypropylene is 90g / 10min, and the density is 0.88g / cm 3 .

[0028] The highly stable antibacterial agent is prepared by the following process: 30kg of attapulgite is sent into a drying furnace, roasted at a temperature of 500°C, cooled to obtain calcined attapulgite with a density of 0.74g / cm3, crushed through a 100-mesh sieve, and sent into a 100kg In a hydrochloric acid solution with a concentration of 5mol / L, stir at a temperature of 80°C for 1h, filter, wash, dry, and send it into an ethanol...

Embodiment 2

[0034] An antibacterial HDPE plastic chair suitable for outdoor use, its raw materials include: high-density polyethylene 100kg, polypropylene 25kg, ethylene-vinyl acetate copolymer 2kg, carboxylated polypropylene 2kg, cedar oil 1kg, epoxy soybean oil 1.2kg , sodium stearate 0.2kg, magnesium oxide 2kg, highly stable antibacterial agent 2kg, acrylic acid grafted polypropylene 2kg, p-phenylenediamine 1kg, 2-hydroxy-4-methoxybenzophenone 2kg.

[0035] The melt flow rate (230°C / 2.16kg) of polypropylene is 96g / 10min, and the density is 0.85g / cm 3 .

[0036] The highly stable antibacterial agent is prepared by the following process: 20kg of attapulgite is sent into a drying furnace, roasted at a temperature of 600°C, cooled to obtain calcined attapulgite with a density of 0.7g / cm3, crushed through a 200-mesh sieve, and sent into a 50kg In a hydrochloric acid solution with a concentration of 5.6mol / L, stir at a temperature of 70°C for 2h, filter, wash, dry, and send it into a soluti...

Embodiment 3

[0042] An antibacterial HDPE plastic chair suitable for outdoor use, its raw materials include: high-density polyethylene 100kg, polypropylene 18kg, ethylene-vinyl acetate copolymer 5kg, carboxylated polypropylene 1.3kg, cedar oil 1.8kg, epoxy soybean oil 0.6kg, sodium stearate 0.8kg, magnesium oxide 1.3kg, highly stable antibacterial agent 3.5kg, citraconic anhydride grafted polypropylene 1.2kg, N-isopropyl-N'-phenyl-p-phenylenediamine 1.7kg, Phenyl o-hydroxybenzoate 1.2kg.

[0043] The melt flow rate (230°C / 2.16kg) of polypropylene is 92g / 10min, and the density is 0.87g / cm 3 .

[0044] The highly stable antibacterial agent is prepared by the following process: 26kg of attapulgite is sent into a drying furnace, roasted at a temperature of 530°C, cooled to obtain calcined attapulgite with a density of 0.73g / cm3, crushed through a 140-mesh sieve, and sent into 80kg In a hydrochloric acid solution with a concentration of 5.2mol / L, stir at a temperature of 77°C for 1.3h, filter...

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Abstract

The invention discloses an antibacterial HDPE plastic chair suitable for outdoor use. The plastic chair comprises the following components in parts by weight: 100 parts of high density polyethylene, 15-25 parts of polypropylene, 2-6 parts of an ethylene-vinyl acetate copolymer, 1-2 parts of carboxylated polypropylene, 1-2 parts of cedar oil, 0.5-1.2 parts of epoxidized soybean oil, 0.2-1 part of sodium stearate, 1-2 parts of magnesium oxide, 2-4 parts of a high-stability antibacterial agent, 1-2 parts of a compatilizer, 1-2 parts of an antioxidant and 1-2 parts of a light stabilizer; wherein the high-stability antibacterial agent is obtained by acidolysis of calcined attapulgite and combination with 8-hydroxyquinoline; the compatilizer is a graft of polypropylene and unsaturated acid or agraft of polypropylene and anhydride; the unsaturated acid is acrylic acid or methacrylic acid, and the anhydride is maleic anhydride, fumaric acid, itaconic acid, citraconic acid, citraconic anhydride or vinyl succinic anhydride. The invention further discloses a preparation method of the antibacterial HDPE plastic chair suitable for outdoor use.

Description

technical field [0001] The invention relates to the technical field of plastic chairs, in particular to an antibacterial HDPE plastic chair suitable for outdoor use and a preparation method thereof. Background technique [0002] High-density polyethylene (HDPE) has good mechanical properties, and its initial relative elongation is as high as 500-600%. HDPE is widely used in packaging materials, daily necessities, office supplies, medical supplies, gas transmission, water supply, sewage, Agricultural irrigation, oil field, chemical industry, mining, post and telecommunications and other fields. In the daily necessities industry, plastic tables and chairs made of HDPE are used outdoors in high-humidity, high-salt atmosphere environments such as beaches, and are better than tables and chairs made of other materials in terms of chemical stability, water resistance and service life. Has incomparable advantages. [0003] With the improvement of people's living standards, people ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L23/08C08L23/26C08L91/00C08L51/06C08K13/06C08K9/02C08K7/26C08K3/22C08K5/098C08K5/3437C08K5/18C08K5/134C08K5/132C08K5/5399
CPCC08L23/06C08L2205/035C08L2201/08C08L2207/062C08K2003/222C08L23/12C08L23/0853C08L23/26C08L91/00C08L51/06C08K13/06C08K9/02C08K7/26C08K3/22C08K5/098C08K5/3437C08K5/18C08K5/1345C08K5/132C08K5/5399
Inventor 胡森川杨曦罗万象陈志益
Owner 陈志益
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