Degradable cable tie material and preparation method thereof

Abstract

The invention relates to a cable tie material and a preparation method thereof, and in particular discloses a degradable cable tie material and a preparation method thereof. The material comprises thefollowing components in parts by weight: 40-60 parts of polylactic acid, 30-50 parts of polyvinyl alcohol, 5-20 parts of aliphatic polyamide, 1-10 parts of polyester, 5-15 parts of toughener, 5-10 parts of filler, 1-10 parts of degradation synergist and 1-3 parts of other additives. The material has the characteristics of high strength, high elongation, excellent high and low temperature performance, etc., and satisfies requirements of normal use of cable ties at high temperature heat resistance to 85 DEG C, and no fracture at low temperature of extreme weathers of Xinjiang, Heilongjiang, etc.; meanwhile, the material has the advantages of natural easy degradation, good biocompatibility and direct degradation or composting treatment after use, is natural and environmentally friendly, is pollution-free, and meets environmental friendliness requirements; and moreover, the material also has good hydrophilicity and anti-static property, and can meet anti-static requirements of wire harness cable ties of electronic industry.

Description

technical field [0001] The invention relates to a cable tie material and a preparation method thereof, in particular to a degradable cable tie material and a preparation method thereof, belonging to the field of material technology. Background technique [0002] The use of plastic cable ties has brought great convenience. Not only are things small and do not take up space, they are easy to carry, but they also have good firmness and strong binding ability, which is very practical. Therefore, it is not only commonly used in daily packaging bags, wires, cables and electronic devices, mechanical equipment pipelines, etc., but also in some special fields, such as automotive engine compartments, aerospace pipelines, etc. These fields generally require cable ties to have high strength, high elongation, high temperature resistance (no deformation at 80°C), excellent low temperature toughness (low temperature impact performance at minus 40°C), etc. [0003] At present, plastic stra...

AI Technical Summary

Problems solved by technology

[0003] At present, plastic strapping materials are mainly nylon and polypropylene, most of which have good stability and are difficult to degrade in nature, which causes great pollution to the environment. Therefore, the development of polymers derived from renewable resources Tie material is of great significance

Polylactic acid is a completely degradable and environmentally friendly aliphatic polyester polymer material. It is polymerized from lactic acid obtained from grain fermentation. Decomposition, the final products are CO2 and H2O; PLA can also be recycled, so that its products can be degraded into lactic acid under the action of enzymes, and recycled; however, polylactic acid faces very big challenges when it is used as a cable tie material, as follows: 1. It belongs to polyester and is a hydrophobic substance, which reduces its biocompatibility and makes it difficult to control the degradation cycle; 2. Its heat distortion temperature is only 55°C, and its heat resistance is poor, which seriously affects its use as a cable tie. 3. Its toughness is very poor, lack of flexibility and elasticity, etc., all of which limit its use in cable tie materials

Therefore, it is impossible to directly replace the existing non-degradable polymer materials so far to prepare the trapped cable ties.

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