Hot melt polyester-polyamide, preparation method and application thereof

A polyester polyamide, hot-melt technology, applied in the field of composite material compatibilizers, can solve the problems of no separation method, environmental pollution, low recovery rate, etc., to promote sustainable development of resources and ecological environment, durable The effect of excellent performance and cost reduction of raw materials

Inactive Publication Date: 2010-03-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Purification and recovery by recrystallization, the recovery rate is lower than 60%, and the amount of waste water is large, which not only pollutes the environment, but also ca

Method used

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  • Hot melt polyester-polyamide, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] The recycled PET is crushed and air-dried to reduce the moisture to below 1.0%, and solids such as sand, stones, and metals are screened out; the nylon acid is crushed and air-dried to reduce the moisture to below 1.0%, and the sand, Solids such as stones and metals; add 400g of recycled PET and 150g of diethylene glycol amine to the flask, and use 500W microwave radiation for 40min to aminate the PET; add 170g of nylon acid to the flask, and use 500W microwave radiation for esterification; Add 1.3g of polycondensation catalyst monobutyl tin oxide and 1.3g of heat stabilizer trimethyl phosphate into the flask, and heat to a temperature of 220~240℃ to anhydrous distillation. At a temperature of 220~240℃, the vacuum degree is 300mHg Distill under reduced pressure for 0.5h, and then distill under reduced pressure under a vacuum of 90mmHg until the acid value is reduced to 1.7mgKOH / g. The melt material is pressed into a water tank in granular form while it i...

Example Embodiment

[0053] Example 2

[0054] The recycled PET is crushed and air-dried to reduce the moisture to below 1.0%, and solids such as sand, stones, and metals are screened out; the nylon acid is crushed and air-dried to reduce the moisture to below 1.0%, and the sand, Solids such as stones and metals; add 400g of recycled PET and 250g of diethylene glycol amine to the flask, and use 700W microwave radiation for 6min to aminate the PET; add 270g of nylon acid to the flask and use 700W microwave radiation for esterification reaction; Add polycondensation catalyst monobutyl tin oxide and antimony trioxide at a mass ratio of 1:1 blend 2.4g, heat stabilizer trimethyl phosphate and 2,6-di-tert-butyl-4-methylphenol 1.5g of the blend with a mass ratio of 1:1, heated to a temperature of 220~240℃ to anhydrous distillation, at a temperature of 220~240℃, vacuum degree of 350mHg vacuum distillation for 1h, and then vacuum degree Distill under reduced pressure at 100mmHg until the acid value drops to ...

Example Embodiment

[0056] Example 3

[0057] The recycled PET is crushed and air-dried to reduce the moisture to below 1.0%, and solids such as sand, stones, and metals are screened out; the nylon acid is crushed and air-dried to reduce the moisture to below 1.0%, and the sand, Solids such as stones and metals; add 400g of recycled PET and 200g of diethylene glycol amine to the flask, and use 600W microwave radiation for 30min to aminate the PET; add 220g of nylon acid to the flask, and use 600W microwave radiation for esterification reaction; Add 2.0 g of a blend of polycondensation catalyst antimony trioxide and tetrabutyl titanate in a mass ratio of 1:1, and heat stabilizer triphenyl phosphite 1.7 g. Heat to a temperature of 220-240°C to distill out without water , At a temperature of 220~240℃, vacuum degree of vacuum is 332mHg vacuum distillation 0.8h, then vacuum degree is 75mmHg vacuum distillation until the acid value drops to 2.1mgKOH / g, the melt material is pressed into granular form while...

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Abstract

The invention relates to hot melt polyester-polyamide, a preparation method and application thereof, which belong to the technical field of composite material melt-assist agents. The hot melt polyester-polyamide is prepared from recovered recovering polyethylene terephthalate (PET), diglycolamine, nylon acid, polycondensation catalyst and heat stabilizer by microwave radiation and reduced pressuredistillation. The hot melt polyester-polyamide is used for improving the physical and mechanical properties of agricultural wastes/thermoplastic plastic composite material. The invention blends the recovered PET and the nylon acid to use, reduces the cost of the raw materials of products and improves the additional value of the products; anhydride impurities in the nylon acid can be effectively utilized; the microwave radiation method is adopted, so the production efficiency is high; and industrial economy and social benefits are obvious.

Description

technical field [0001] The invention relates to a hot-melt polyester polyamide and its preparation method and application, in particular to a hot-melt polyester polyamide interface compatibilizer applied to agricultural residue / thermoplastic composite materials and its preparation method. The invention belongs to the technical field of compatibilizers for composite materials. Background technique [0002] Among the four major materials (steel, cement, wood, plastic) in the world today, wood is the only natural composite biopolymer resource that is renewable, most environmentally friendly, plays an important role in ecological balance, and is easy to recycle and recycle. In the 21st century, when my country's economic construction is developing steadily and people's living standards are constantly improving, the construction industry, manufacturing industry, furniture industry, interior decoration industry, packaging industry and the future wooden house construction industry h...

Claims

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Application Information

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IPC IPC(8): C08G69/44C08L77/12C08L23/06C08L97/02
Inventor 王志玲孟凡帆方海莉杨秀利
Owner UNIV OF JINAN
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