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Degradable resin and method for preparing straw by using degradable resin

A technology for degrading resins and straws, which can be used in applications, household utensils, tubular objects, etc. It can solve the problems of easy migration of fillers, poor heat resistance of straws, and inability to meet food contact requirements, etc., to meet food contact requirements, Effect of improving heat resistance and impact strength

Pending Publication Date: 2022-02-01
浙江中科应化生态新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the prior art, by adding a toughening agent to modify the polylactic acid and adding a coupling agent to modify the filler, so as to solve the problem of poor heat resistance of existing straws and the problem of filling The material is easy to move out and cannot meet the food contact requirements

Method used

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  • Degradable resin and method for preparing straw by using degradable resin
  • Degradable resin and method for preparing straw by using degradable resin

Examples

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Embodiment 1

[0024] A degradable resin, based on 100 parts, comprising the following raw material components: 89 parts of polylactic acid, 10 parts of toughening agent, 0.5 part of lubricant, 0.1 part of nucleating agent, 0.1 part of compatibilizer, and 0.2 part of plasticizer , 0.1 part of antioxidant;

[0025] Wherein polylactic acid selects PLAlx175 for use; Described toughening agent is polybutylene succinate (PBS); Lubricant selects ethylene bisstearamide for use; Nucleating agent selects nano silicon dioxide for use; Compatibilizer selects epoxy for use Cross-linking agent; plasticizer selects vegetable oil for use, and antioxidant selects 6-tertiary butyl-4-methylphenol for use.

[0026] A kind of preparation method of degradable resin,

[0027] (1) Add polylactic acid, toughening agent, lubricant, nucleating agent, compatibilizer, plasticizer and antioxidant to the low-speed mixer in proportion and mix evenly;

[0028] (2) Add the uniformly mixed materials into the twin-screw ext...

Embodiment 2

[0031] A degradable resin, based on 100 parts, comprising the following raw material components: 71 parts of polylactic acid, 10 parts of toughening agent, 12 parts of filler, 3 parts of coupling agent, 0.3 parts of lubricant, 0.1 part of nucleating agent, 0.1 part of compatibilizer, 3.2 parts of vegetable oil, 0.3 part of antioxidant;

[0032] Wherein polylactic acid selects PLAlx175 for use; Described toughening agent is polybutylene succinate (PBS); Filler selects talcum powder for use; Coupling agent selects the mixture of titanate and lauric acid for use; Fatty acid amide; nano silicon dioxide as nucleating agent; epoxy crosslinking agent as compatibilizer; vegetable oil as plasticizer, and 6-tertiary butyl-4-methylphenol as antioxidant.

[0033] A kind of preparation method of degradable resin,

[0034] (1) First, take talcum powder, lauric acid and titanate coupling agent, and stir at a high speed for 20 minutes at 70°C-86°C to activate the surface to produce amphiphil...

Embodiment 3

[0039] A degradable resin, based on 100 parts, comprising the following raw material components: 71 parts of polylactic acid, 10 parts of toughening agent, 12 parts of filler, 3 parts of coupling agent, 0.3 parts of lubricant, 0.1 part of nucleating agent, 0.1 part of compatibilizer, 3.2 parts of vegetable oil, 0.3 part of antioxidant;

[0040] Wherein polylactic acid selects PLAlx175 for use; Described toughening agent is polybutylene succinate (PBS); Filler selects tapioca starch for use; Coupling agent selects the mixture of titanate and lauric acid for use; Fatty acid amide; nano silicon dioxide as nucleating agent; epoxy crosslinking agent as compatibilizer; vegetable oil as plasticizer, and 6-tertiary butyl-4-methylphenol as antioxidant.

[0041] A kind of preparation method of degradable resin is the same as embodiment 2.

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Abstract

The invention relates to degradable resin and a method for preparing a straw from the degradable resin. The degradable resin is prepared from the following raw material components in 100 parts by weight: 70 to 95 parts of polylactic acid, 1 to 10 parts of a toughening agent, 0.5 to 15 parts of a filling agent, 0.1 to 1 part of a lubricating agent, 0.05 to 0.2 part of a nucleating agent, 0.08 to 0.3 part of a compatilizer, 0.1 to 2 parts of a plasticizer, 0.1 to 1 part of an antioxidant and 0.1 to 3 parts of a coupling agent; wherein the polylactic acid is PLAlx175; the toughening agent is poly (butylene succinate) (PBS); the filling agent is a mixture of one or more of starch and bamboo fiber powder; and the coupling agent is a mixture of one or more of titanate or lauric acid. According to the invention, the straw solves the problems that an existing straw is poor in heat resistance, the filler is easy to migrate out, and the food contact requirement cannot be met.

Description

technical field [0001] The invention relates to the technical field of straw production, in particular to a degradable resin and a method for preparing straws using the degradable resin. Background technique [0002] At present, many disposable straws are non-degradable materials, which will cause a great burden on the environment after use. At present, many countries have issued a ban on disposable non-degradable products, and advocate the use of degradable and environmentally friendly materials to replace them. This product is It provides a feasible scheme for making a special resin for fully degradable straws. [0003] At present, some degradable products in the market cannot fully meet the food contact requirements, so this plan will focus on solving the food contact problem of special resin for straws. Contents of the invention [0004] The purpose of the present invention is to address the deficiencies of the prior art, by adding a toughening agent to modify the pol...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L3/02C08L97/02C08K9/04C08K3/34B29D23/00
CPCC08L67/04B29D23/001C08L2201/08C08L2203/18C08L67/02C08L3/02C08L97/02C08K9/04C08K3/34
Inventor 杨佳吴旗李芳芳
Owner 浙江中科应化生态新材料科技有限公司
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