Preparation method of impact-resistant easily-degradable environment-friendly non-woven fabric

An easy-degradable, non-woven fabric technology, applied in non-woven fabrics, rayon manufacturing, textiles and papermaking, etc., can solve the problems that limit the wide application of impact-resistant non-woven fabrics, limited mechanical properties, etc., and achieve good processing thermal stability , good softness and high compatibility

Pending Publication Date: 2020-12-08
温岭市妮珂芙服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polylactic acid fiber non-woven fabric produced by melt spinning has the characteristics of general synthetic fibers, such as excellent resilience and shape retention, and has good hydrophilicity and wicking, good spinnability, and polylactic acid The fiber is degradable, which is beneficial to the protection of the environment, but its mechanical properties are very limited, which limits its wide application in the field of impact-resistant non-woven fabrics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of impact-resistant easily-degradable environment-friendly non-woven fabric
  • Preparation method of impact-resistant easily-degradable environment-friendly non-woven fabric
  • Preparation method of impact-resistant easily-degradable environment-friendly non-woven fabric

Examples

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Effect test

Embodiment 1

[0025] A method for preparing an impact-resistant and easily degradable environmentally friendly non-woven fabric, comprising the following steps:

[0026] S1. Mix 50kg of polylactic acid, 10kg of epoxy resin, 4kg of carbon nanotubes, and 50kg of acetone with a molecular weight of 100,000 and a melt flow rate of 5g / 10min (210°C, 2.16kg), sonicate for 2 hours, and the ultrasonic power is 500W , remove acetone, add 1kg tetrahydrophthalic anhydride, 25kg montmorillonite, and react at 130°C for 20min to obtain pretreated polylactic acid;

[0027] S2, 100kg pretreated polylactic acid, 10kg polyadipate-terephthalate-butylene glycol ester resin, 15kg nano-silicon dioxide, 1kg disproportionated rosin are mixed uniformly, and are sent into a twin-screw extruder for extrusion, wherein The temperature of the first stage is 120°C, the temperature of the second stage is 135°C, the temperature of the third stage is 155°C, the temperature of the fourth stage is 158°C, the temperature of the ...

Embodiment 2

[0030] A method for preparing an impact-resistant and easily degradable environmentally friendly non-woven fabric, comprising the following steps:

[0031] S1. Mix 80kg of polylactic acid, 4kg of epoxy resin, 8kg of carbon nanotubes, and 30kg of acetone with a molecular weight of 500,000 and a melt flow rate of 50g / 10min (210°C, 2.16kg), and ultrasonically treat it for 4 hours with an ultrasonic power of 300W. , remove acetone, add 2kg tetrahydrophthalic anhydride, 15kg montmorillonite, and react at 150°C for 10min to obtain pretreated polylactic acid;

[0032] S2, 100kg pretreatment polylactic acid, 20kg polyadipate-terephthalate-butylene glycol ester resin, 5kg fly ash, 3kg epoxy soybean oil are mixed uniformly, send into twin-screw extruder and extrude, The temperature of the first stage is 110°C, the temperature of the second stage is 142°C, the temperature of the third stage is 150°C, the temperature of the fourth stage is 162°C, the temperature of the fifth stage is 170°...

Embodiment 3

[0035] A method for preparing an impact-resistant and easily degradable environmentally friendly non-woven fabric, comprising the following steps:

[0036] S1. Mix 60kg of polylactic acid, 8kg of epoxy resin, 5kg of carbon nanotubes, and 45kg of acetone with a molecular weight of 200,000 and a melt flow rate of 10g / 10min (210°C, 2.16kg), and perform ultrasonic treatment for 2.5 hours. The ultrasonic power is 450W, remove acetone, add 1.3kg tetrahydrophthalic anhydride, 22kg montmorillonite, and react at 135°C for 18min to obtain pretreated polylactic acid;

[0037] S2. Mix 100kg of pretreated polylactic acid, 13kg of polyadipate-terephthalate-butylene glycol ester resin, 12kg of calcined clay, and 1.5kg of dibutyltin dilaurate into a twin-screw extruder to extrude The temperature of the first stage is 117°C, the temperature of the second stage is 136°C, the temperature of the third stage is 154°C, the temperature of the fourth stage is 159°C, the temperature of the fifth stage...

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Abstract

The invention discloses a preparation method of an impact-resistant easily-degradable environment-friendly non-woven fabric. The preparation method of the impact-resistant easily-degradable environment-friendly non-woven fabric comprises the following steps that polylactic acid, epoxy resin, carbon nanotubes and acetone are mixed, ultrasonic treatment is carried out for 2-4 hours, ultrasonic poweris 300W-500W, the acetone is removed, a curing agent and montmorillonite are added, and reacting is carried out at 130DEG C-150DEG C for 10-20 minutes to obtain pretreated polylactic acid; the pretreated polylactic acid, polybutylene adipate-co-terephthalate resin, an inorganic filler and a plasticizer are uniformly mixed, twin-screw extrusion is carried out, and then sequential cooling, drying and crushing are carried out to obtain a premix; the premix is extruded and melted at the extruding and melting temperature of 160DEG C-168 DEG C, the temperature of the melt is adjusted to 185DEG C-190 DEG C, nascent fibers are sprayed through a 0.4mm-0.5mm spray head, the nascent fibers are stretched through air flow, the nascent fibers are uniformly laid into a fiber net, and the fiber net is bound through a 130 DEG C-140DEG C hot roller to obtain the impact-resistant easily-degradable environment-friendly non-woven fabric.

Description

technical field [0001] The invention relates to the technical field of environmentally friendly nonwoven fabrics, in particular to a preparation method of impact-resistant and easily degradable environmentally friendly nonwoven fabrics. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They have the characteristics of moisture-proof, breathable, rich colors, and low prices. They belong to the field of new materials for industrial textiles. Modern non-woven technology integrates industrial technologies such as textiles, chemistry, papermaking, plastics, chemicals, leather and dyeing and finishing, and makes full use of relevant knowledge and achievements in modern physics, chemistry, biology and other disciplines. It is a high-tech industry with high speed, wide range of applicable raw materials, diversified processes, and large product uses. [0003] The application of non-woven fabrics is very br...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/011D04H3/009D04H3/16D01F8/14D01F8/16D01F1/10
CPCD01F1/10D01F8/14D01F8/16D04H3/009D04H3/011D04H3/16
Inventor 王玉琴
Owner 温岭市妮珂芙服饰有限公司
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