Degradable antibacterial environment-friendly straw and preparation method thereof

A suction straw, an environmentally friendly technology, applied in the field of degradable antibacterial and environmentally friendly straws and its preparation, can solve the problems of poor antibacterial performance of straws, no indication of temperature, etc., and achieve low raw material costs, low production costs, and good environmental protection.

Inactive Publication Date: 2020-07-14
泉州市华创园智能研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN106939119B discloses a straw, which provides an antibacterial straw, which solves the defects of poor antibacterial performance and no indication of temperature in the prior art, including the straw body, the top of the straw body is coated with a temperature-sensitive discoloration agent layer, the straw body includes the following raw materials in parts by weight: 20-30 parts of titanium dioxide, 10-15 parts of nano-silver particles, 5-10 parts of tetrabutyl titanate, 1-2 parts of isomeric decanol polyoxyethylene ether parts, 10-15 parts of coupling agent, 5-10 parts of methyl propylene glycol, 100-120 parts of copolyester, and the temperature-sensitive discoloration agent layer contains the following raw materials in parts by weight: 30-40 parts of palmitic alcohol, bisphenol A5~10 copies, carrier 100~110 copies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A degradable antibacterial environmental protection straw

[0028] It consists of the following raw materials in parts by weight: polylactic acid 26kg, polycaprolactone 12kg, nano-silver 0.5kg, modified nano-titanium dioxide 0.25kg, bagasse fiber 2.2kg, titanate coupling agent 1.3kg, palmitic alcohol 1.2kg, Benzoic acid 0.35kg; Wherein, the length of bagasse fiber is 0.85mm.

[0029] As mentioned above, the preparation process of modified nano-titanium dioxide is: ultrasonically disperse the nano-titanium dioxide powder in water, and then add 2 drops of 0.3mol / L hypochlorous acid solution at a temperature of 75°C, and then add 0.5mol / L L of calcium sulfate solution, stirred for 10 minutes, filtered and dried after standing for 60 minutes to obtain the modified nano-titanium dioxide; wherein, the mass ratio of nano-titanium dioxide powder to water was 1:10; nano-titanium dioxide powder and sulfuric acid The mass ratio of calcium solution is 1:0.10.

[0030] Prepared by...

Embodiment 2

[0035] A degradable antibacterial environmental protection straw

[0036] It consists of the following raw materials in parts by weight: polylactic acid 36kg, polycaprolactone 22kg, nano-silver 1.5kg, modified nano-titanium dioxide 0.65kg, bagasse fiber 4.2kg, titanate coupling agent 1.8kg, palmitic alcohol 2.0kg, Benzoic acid 0.85kg; Wherein, the length of bagasse fiber is 1.85mm.

[0037] As mentioned above, the preparation process of modified nano-titanium dioxide is: ultrasonically disperse the nano-titanium dioxide powder in water, and then add 4 drops of 0.5mol / L hypochlorous acid solution at a temperature of 82°C, and then add 1.0mol / L L of calcium sulfate solution, stirred for 15 minutes, filtered and dried to obtain the modified nano-titanium dioxide after standing for 90 minutes; wherein, the mass ratio of nano-titanium dioxide powder to water was 1:12; nano-titanium dioxide powder and sulfuric acid The mass ratio of calcium solution is 1:0.20.

[0038] Prepared by...

Embodiment 3

[0043] A degradable antibacterial environmental protection straw

[0044] It consists of the following raw materials in parts by weight: polylactic acid 28kg, polycaprolactone 14kg, nano-silver 0.7kg, modified nano-titanium dioxide 0.35kg, bagasse fiber 2.7kg, titanate coupling agent 1.4kg, palmitic alcohol 1.4kg, Benzoic acid 0.45kg; Wherein, the length of bagasse fiber is 1.05mm.

[0045] As mentioned above, the preparation process of modified nano-titanium dioxide is: ultrasonically disperse the nano-titanium dioxide powder in water, and then add 4 drops of 0.3mol / L hypochlorous acid solution at a temperature of 77°C, and then add 0.6mol / L L of calcium sulfate solution, stirred for 11 minutes, filtered and dried after standing for 70 minutes to obtain the modified nano-titanium dioxide; wherein, the mass ratio of nano-titanium dioxide powder to water was 1:12; nano-titanium dioxide powder and sulfuric acid The mass ratio of calcium solution is 1:0.12.

[0046] Prepared by...

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Abstract

The invention discloses a degradable antibacterial environment-friendly straw and a preparation method thereof. The degradable antibacterial environment-friendly straw is prepared from the following raw materials in parts by weight: 26-36 parts of polylactic acid, 12-22 parts of polycaprolactone, 0.5-1.5 parts of nano-silver, 0.25-0.65 parts of modified nano titanium dioxide, 2.2-4.2 parts of bagasse fiber, 1.3-1.8 parts of titanate coupling agent, 1.2-2.0 parts of palmityl alcohol and 0.35-0.85 parts of benzoic acid. According to the degradable antibacterial environment-friendly straw prepared by the invention, polylactic acid in the raw materials is high in biocompatibility with other components, stable in performance, relatively good in thermal stability and antibacterial property, freeof deformation and mouth scalding in a use process and high in use safety.

Description

technical field [0001] The invention relates to the technical field of straws, in particular to a degradable, antibacterial and environment-friendly straw and a preparation method thereof. Background technique [0002] Straws are mostly cylindrical and hollow plastic products. The main function is to help people drink drinks or liquid food in cups. They can also be used to suck the marrow of long bones of some cooked animals, and can also be used to suck some liquid medicines. It is mostly used in catering, medical and other living fields, providing many conveniences for human beings. [0003] Current drinking straws mostly use polyethylene resin during manufacture, but polyethylene resin has poor degradability and antibacterial properties, poor safety in use, and discarding after use is easy to pollute the environment and increase environmental pressure. [0004] Polylactic acid (PLA) is an aliphatic polyester prepared by fermenting corn and other crops to obtain lactic ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L97/02C08K13/06C08K9/02C08K3/08C08K3/22C08K5/09C08K5/05
CPCC08L67/04C08L2203/18C08L2201/06C08L2205/16C08L2205/025C08L2205/03C08K2201/011C08K2003/2241C08K2003/0806C08L2201/08C08L2201/10C08L97/02C08K13/06C08K9/02C08K3/08C08K3/22C08K5/09C08K5/05
Inventor 梁汉菲
Owner 泉州市华创园智能研究有限公司
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