Method for manufacturing safety nets by waste polyester bottles

A production method, polyester bottle technology, applied in the direction of single-component polyester artificial filament, stretch spinning method, fire-resistant and flame-retardant filament manufacturing, etc., can solve the problems of poor weather resistance, easy oxidation, etc., and achieve anti-aging effect Good, good elasticity, and the effect of reducing production costs

Active Publication Date: 2014-12-03
山东滨州波涛化纤制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw material polypropylene resin PP is a petroleum derivative with poor weather resistance and easy oxidation

Method used

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  • Method for manufacturing safety nets by waste polyester bottles
  • Method for manufacturing safety nets by waste polyester bottles
  • Method for manufacturing safety nets by waste polyester bottles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Crushing and cleaning: cut and crush PET recycled materials into bottle flakes with a diameter of about 12mm-14mm, and then hot wash with clean water (water temperature 85°C) and dehydrate;

[0041] (2) Ingredients: According to the ratio of PET recycled material 96%, masterbatch 3% (G4272A for polyester), flame retardant 1%, weigh 1500kg of raw materials (TA9098 halogen-free flame retardant);

[0042] (3) Crystallization drying: The raw materials are sent to the crystallization drying device (vacuum drum dryer) through the feeder and continuously rolled and stirred, heated to 140°C by the heat medium for crystallization for 2 hours, and then dried at this temperature for 4 hours. Hours, during which the vacuum pump is used to continuously evacuate, so that negative pressure is generated in the crystallization drying device, the pressure is 0.8mPa, and the moisture contained in the raw material and the smoke generated by impurities in the high temperature process are...

Embodiment 2

[0050] (1) Crushing and cleaning: Cut and crush PET recycled materials into bottle flakes with a diameter of about 12mm-14mm, then hot wash with clean water (water temperature 90°C), and dehydrate;

[0051] (2) Ingredients: According to the ratio of PET recycled material 97%, masterbatch 1% (G4272A for polyester), flame retardant 2%, weigh 1500kg of raw materials (TA9098 halogen-free flame retardant);

[0052] (3) Crystallization drying: The raw materials are sent to the crystallization drying device (vacuum drum dryer) through the feeder and continuously rolled and stirred, heated to 160°C by the heat medium for crystallization for 2 hours, and then dried at this temperature for 6 Hours, during which the vacuum pump is used to continuously evacuate, so that negative pressure is generated in the crystallization drying device, the pressure is 0.95mPa, and the moisture contained in the raw material and the smoke generated by impurities in the high temperature process are extracte...

Embodiment 3

[0060] Others are the same as Implementation 1, the difference is that in the step (1), the ratio of raw materials is: 98% of recycled PET, 1.5% of color masterbatch, 0.5% of flame retardant; Heating to 180°C; drying at 180°C in the step (4) and keeping it warm for 6 hours.

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Abstract

The invention relates to the technical field of safety net manufacturing technology and particularly relates to a method for manufacturing safety nets by waste polyester bottles. By improvements on a technological process, technological conditions, equipment and the like, different types of safety nets, such as a horizontal safety net, a vertical safety net and a fine-mesh vertical safety net, can be obtained according to different warp knitting approaches. The safety nets obtained by virtue of the method have good strength performance and a good anti-aging effect; besides, the waste polyester bottles are used to replace polypropylene (PP) resin as a raw material for producing the safety nets, not only is the energy saved, but also the production cost is lowered, and the method conforms to national industrial policy requirements and has an outstanding substantive characteristic and remarkable progress.

Description

technical field [0001] The invention relates to the technical field of a safety net production process, in particular to a production method for using waste polyester bottles in a safety net. Background technique [0002] Safety nets are mainly used in the field of building safety protection. They are nets used to prevent people and objects from falling, or to avoid and reduce the damage of objects. According to their functions, they are divided into safety flat nets, safety vertical nets and dense meshes Type safety vertical net. At present, the main raw material for the production of safety nets is polypropylene resin PP, but due to the poor weather resistance and easy oxidation of PP, it leads to its oxidative degradation, and the mechanical strength, especially the impact resistance, of the safety nets produced with it during the hanging process is greatly reduced. , which reduces the safety guarantee factor and poses a safety threat to construction personnel. The mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/07D01F1/04D01D5/12
Inventor 邢光波李军
Owner 山东滨州波涛化纤制品有限公司
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