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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 causes serious waste of resources; separation by distillation, all decomposes when it is close to the boiling point, so up to now No effective separation method has been developed

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Crushing the recovered PET, air drying, reducing the moisture to below 1.0%, sieving to remove solids such as sand, stones, metals; crushing nylon acid, air drying, reducing the moisture to below 1.0%, sieving to remove sand, Solids such as stones and metals; Add 400g of reclaimed PET, 150g of diglycolamine to the flask, and use 500W microwave radiation for 40min to make the PET aminolysis; Add 170g of nylon acid to the flask, and carry out esterification reaction with 500W microwave radiation; Add 1.3g of polycondensation catalyst monobutyltin oxide and 1.3g of heat stabilizer trimethyl phosphate into the flask, heat to a temperature of 220-240°C until anhydrous distills out, and at a temperature of 220-240°C, the vacuum degree is 300mHg Distill under reduced pressure for 0.5h, then distill under reduced pressure at a vacuum degree of 90mmHg until the acid value drops to 1.7mgKOH / g, press the melt material into a water tank in granular form while it is hot, and obtain a...

Embodiment 2

[0054] Crushing the recovered PET, air drying, reducing the moisture to below 1.0%, sieving to remove solids such as sand, stones, metals; crushing nylon acid, air drying, reducing the moisture to below 1.0%, sieving to remove sand, Solids such as stones and metals; add 400g of recycled PET and 250g of diglycolamine to the flask, and use 700W microwave radiation for 6min to degrade PET; add 270g of nylon acid to the flask, and carry out esterification reaction with 700W microwave radiation; Add polycondensation catalyst monobutyltin oxide and antimony trioxide blend 2.4g in mass ratio 1:1, heat stabilizer trimethyl phosphate and 2,6-di-tert-butyl-4-methylphenol 1.5g of the blend with a mass ratio of 1:1 is heated to a temperature of 220-240°C until anhydrous is distilled off, and at a temperature of 220-240°C, a vacuum of 350mHg is used for distillation under reduced pressure for 1h, and then the vacuum is Distill under reduced pressure at 100mmHg until the acid value drops to...

Embodiment 3

[0057] Crushing the recovered PET, air drying, reducing the moisture to below 1.0%, sieving to remove solids such as sand, stones, metals; crushing nylon acid, air drying, reducing the moisture to below 1.0%, sieving to remove sand, Solids such as stones and metals; add 400g of recovered PET and 200g of diglycolamine to the flask, and use 600W microwave radiation for 30min to make PET ammonylysis; add 220g of nylon acid to the flask, and carry out esterification reaction with 600W microwave radiation; Add 2.0g of polycondensation catalyst antimony trioxide and tetrabutyl titanate in a mass ratio of 1:1, heat stabilizer triphenyl phosphite 1.7g, heat to a temperature of 220-240°C until anhydrous distilled , at a temperature of 220-240°C, vacuum distillation at 332mHg for 0.8h, and then vacuum distillation at a vacuum of 75mmHg until the acid value drops to 2.1mgKOH / g, and the melt material is pressed into granular form while it is hot. In the human sink, a hot-melt polyester po...

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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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