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PA-PP alloy and preparation method thereof

A PA-PP and alloy technology, applied in the field of high-performance and low-cost PA-PP alloy materials and their preparation, can solve the problems of performance degradation and high energy consumption, and achieve bright practical prospects and obvious social and economic benefits

Inactive Publication Date: 2017-05-24
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment methods of waste nylon carpets include energy recovery, landfill recovery, chemical recovery and material recovery, etc. Since nylon contains a large amount of N and O atoms, the way of energy recovery by incineration often produces a large amount of nitrogen oxides and other secondary Pollution is not a good treatment method at present. Although chemical recycling has little secondary pollution to the environment, it consumes a lot of energy. With the continuous development of the concept of environmental protection, green economy, circular economy and sustainable development advocated by the society, it will The recycling of PA6 in waste nylon carpets through material recovery has attracted more and more attention.
However, due to the degradation of recycled PA6 through the use process, its performance has dropped compared with that of new materials, and its direct recycling as engineering plastics has great limitations. Therefore, they need to be recycled again. Modification treatment to obtain high-performance composite materials for reuse

Method used

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  • PA-PP alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-performance and low-cost PA-PP alloy, its composition by mass percentage is: recycled PA6 resin 74%, PP resin 25%, polypropylene grafted maleic anhydride 5%, silicone masterbatch 0.3%, superfine Talc powder 0.3%, antioxidant 10100.4%. Wherein, the regenerated PA6 resin is regenerated PA6 resin obtained by crushing, cleaning, separating and drying recycled waste nylon carpets and extruding and granulating. Its relative viscosity is 2.0-2.7 according to the Ubbelohde viscosity method, wherein PA6 is Polycaprolactam. The PP resin is polypropylene.

[0034] Preparation method: (1) Dry regenerated PA6 at 100°C-120°C for more than 8 hours, dry PP at 90°C-110°C for more than 2 hours, polypropylene grafted with maleic anhydride, silicone masterbatch, superfine Talc powder and antioxidant 1010 were dried at 70°C to 100°C for 4 hours; (2) After drying, regenerated PA6, PP, polypropylene grafted maleic anhydride, silicone masterbatch, ultrafine talc powder, anti-oxidant ...

Embodiment 2

[0036] A high-performance and low-cost PA-PP alloy, the composition of which is: 49% of recycled PA6 resin, 35% of PP resin, 10% of alkali-free chopped glass fiber whose surface has been treated with silane coupling agent, and poly Propylene-grafted maleic anhydride 5%, silicone masterbatch 0.3%, ethylene-methacrylic acid copolymer zinc salt 0.3%, antioxidant 1010 and antioxidant 168 compound 0.4%. Wherein, the regenerated PA6 resin is regenerated PA6 resin obtained by crushing, cleaning, separating and drying recycled waste nylon carpets and extruding and granulating. Its relative viscosity is 2.0-2.7 according to the Ubbelohde viscosity method, wherein PA6 is polycaprolactam. The PP resin is polypropylene.

[0037] Preparation method: (1) Dry regenerated PA6 at 100°C to 120°C for more than 8 hours, dry PP at 90°C to 110°C for more than 2 hours, and use alkali-free chopped glass fibers whose surface has been treated with silane coupling agent , polypropylene grafted maleic ...

Embodiment 3

[0039] A high-performance and low-cost PA-PP alloy, the composition of which is: 59% of recycled PA6 resin, 15% of PP resin, 20% of alkali-free chopped glass fiber whose surface has been treated with silane coupling agent, and poly Propylene grafted maleic anhydride 5%, silicone masterbatch 0.3%, nano-SiO 2 0.3%, antioxidant 2450 and antioxidant 168 compound 0.4%. Wherein, the regenerated PA6 resin is regenerated PA6 resin obtained by crushing, cleaning, separating and drying recycled waste nylon carpets and extruding and granulating. Its relative viscosity is 2.0-2.7 according to the Ubbelohde viscosity method, wherein PA6 is Polycaprolactam. The PP resin is polypropylene.

[0040] Preparation method: (1) Dry regenerated PA6 at 100°C to 120°C for more than 8 hours, dry PP at 90°C to 110°C for more than 2 hours, and use alkali-free chopped glass fibers whose surface has been treated with silane coupling agent , polypropylene grafted maleic anhydride, silicone masterbatch, n...

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Abstract

The invention discloses a PA-PP alloy material and a preparation method thereof. The PA-PP alloy material is prepared from the following raw materials by mass percent: 30 to 80 percent of renewable PA6 resin, 10 to 40 percent of PP resin, 0 to 40 percent of glass fibers, 0 to 10 percent of compatilizer, 0.1 to 1 percent of lubricating agent, 0.2 to 0.5 percent of nucleating agent, and 0.2 to 1 percent of antioxidant. The PA-PP alloy has the beneficial effects: the high-performance low-cost PA-PP alloy prepared by the invention adopts the renewable PA6 and PP as basic materials to be mixed with the glass fibers, compatilizer and little other auxiliary additives, so that the performance is excellent and the cost is low; and the PA-PP alloy has promising application prospect and obvious social and economic benefits in the field such as building materials, cars, electrons and electric appliances, articles for daily use and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-performance and low-cost PA-PP alloy material and a preparation method thereof. Background technique [0002] Nylon carpet is the earliest chemical fiber carpet used in large quantities. Its wear resistance and resilience are the best among all carpets. Its acid, alkali and organic solvent resistance make it easy to clean, and its strength is higher than other natural fibers. , it also has the advantages of less water absorption, lower density, good mildew and moth resistance, and cheap price. 30-40% of the world's nylon production is used to produce nylon carpets, and it accounts for about 70% of the fiber market. At present, the treatment methods of waste nylon carpets include energy recovery, landfill recovery, chemical recovery and material recovery, etc. Since nylon contains a large amount of N and O atoms, the way of energy recovery by incineration often produces a ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L23/12C08L51/06C08L83/04C08K13/06C08K3/34C08K5/134C08K9/06C08K7/14C08K3/36C08K5/526
CPCC08L77/02C08K2201/011C08L2205/035C08L2205/08C08L23/12C08L51/06C08L83/04C08K13/06C08K3/34C08K5/1345C08K9/06C08K7/14C08K3/36C08K5/526
Inventor 陈萌陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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