High-strength flame-retardant drainage pipe and preparation method thereof

A drainage pipe, high-strength technology, applied in the field of waste plastic recycling technology and pipe preparation, can solve the problems of limited use field, high processing cost, waste of resources, etc. Effect

Inactive Publication Date: 2020-09-18
上海睿聚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, due to its particularity, as well as its own hazards and complexity, it is difficult to physically recycle hazardous waste plastic packaging barrels. At the same time, due to the limitation of industry attributes, its application fields are also limited.
Therefore, in the current actual production, most hazardous waste treatment enterprises carry out incineration treatment, which leads to high treatment costs and waste of resources.

Method used

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  • High-strength flame-retardant drainage pipe and preparation method thereof
  • High-strength flame-retardant drainage pipe and preparation method thereof

Examples

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preparation example Construction

[0033] In the present invention, the preparation method of the regenerated polyethylene material comprises the following steps:

[0034] (1) Crushing: Crushing waste plastic barrels to obtain broken materials;

[0035] (2) Impurity removal: Soak the crushed material in hot alkaline water, then polish and clean it to remove surface impurities; after dehydration, remove light impurities by winnowing;

[0036] (3) Drying: drying the crushed material obtained in step (2) until the moisture content is not higher than 0.5wt%.

[0037] In a preferred embodiment, the crushed material has an average particle size of 10-80 mm.

[0038] In a preferred embodiment, the hot alkaline water is an aqueous solution of sodium hydroxide / potassium hydroxide at a temperature of 50-100°C.

[0039] In a more preferred embodiment, the concentration of the sodium hydroxide / potassium hydroxide is 0.1-10wt%.

[0040] In a preferred embodiment, the drying temperature is 60-100°C.

[0041] filler

...

Embodiment 1

[0080] Embodiment 1 provides a high-strength flame-retardant drainage pipe. The raw materials for the preparation of the drainage pipe include at least the following components in parts by weight: 75 parts of recycled polyethylene materials, 10 parts of fillers, 4 parts of metal powder, retardant 4 parts of fuel, 1.5 parts of other additives.

[0081] The preparation method of described recycled polyethylene material comprises the following steps:

[0082] (1) crushing: crushing waste plastic barrels to obtain crushed material, the average particle size of which is 12 ± 5mm;

[0083] (2) Impurity removal: Soak the crushed material in hot alkaline water, then polish and clean it to remove surface impurities; after dehydration, remove light impurities by winnowing;

[0084] (3) Drying: drying the crushed material obtained in step (2) at 100°C until the moisture content is not higher than 0.5wt%.

[0085] Described filler is modified glass fiber; The preparation method of descr...

Embodiment 2

[0095] Embodiment 2 provides a high-strength flame-retardant drainage pipe. The raw materials for the preparation of the drainage pipe include at least the following components in parts by weight: 60 parts of recycled polyethylene materials, 5 parts of fillers, 1 part of metal powder, retardant 1 part of fuel, 1 part of other additives.

[0096] The preparation method of described recycled polyethylene material comprises the following steps:

[0097] (1) crushing: crushing waste plastic barrels to obtain crushed material, the average particle size of which is 12 ± 5mm;

[0098] (2) Impurity removal: Soak the crushed material in hot alkaline water, then polish and clean it to remove surface impurities; after dehydration, remove light impurities by winnowing;

[0099] (3) Drying: drying the crushed material obtained in step (2) at 100°C until the moisture content is not higher than 0.5wt%.

[0100] Described filler is modified glass fiber; The preparation method of described m...

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Abstract

The invention relates to the field of waste plastic regeneration technologies and pipe preparation methods, in particular to a high-strength flame-retardant drainage pipe and a preparation method thereof. The high-strength flame-retardant drainage pipe is prepared from the following raw materials in parts by weight: 60 to 90 parts of regenerated polyethylene material, 5 to 20 parts of a filler, 1to 10 parts of metal powder, 1 to 10 parts of a flame retardant and 1 to 5 parts of other auxiliary agents. According to the high-strength flame-retardant drainage pipe, the polyethylene material regenerated from a waste plastic barrel is used as a base material, so the treatment strength of the waste plastic barrel is greatly improved, environmental pollution is reduced, resource utilization is realized, and production cost is reduced; meanwhile, a certain amount of other components such as the filler, the flame retardant, the metal powder and other auxiliaries are compounded, and the components are reasonably compounded to generate a synergistic interaction effect, so the drainage pipe has the characteristics of high strength and excellent flame retardant property.

Description

technical field [0001] The invention relates to the field of waste plastic recycling technology and pipe preparation methods, in particular to a high-strength flame-retardant drainage pipe and a preparation method thereof. Background technique [0002] With the rapid development of the plastics industry, polyethylene, as a general-purpose plastic, is widely used in daily necessities, construction, automobile manufacturing and other fields. Especially in the field of pipes, due to the characteristics of good flexibility, corrosion resistance, and easy construction and installation, polyethylene pipes are widely used in municipal and building water supply and drainage, gas, heating, wire and cable threading, agricultural water-saving irrigation and industrial sewage. , Mine mineral transportation and other fields. [0003] At present, PE pipe has become the second largest plastic pipe variety in the world after PVC. However, with the expansion of polyethylene application fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/04C08K7/14C08K3/08C08K3/04C08K3/02
CPCC08K3/02C08K3/08C08K7/14C08K9/04C08K13/06C08K2003/026C08K2003/0812C08K2003/085C08K2201/005C08K2201/011C08L2201/02C08L2201/22C08L2203/18C08L2207/20C08K3/042C08L23/06
Inventor 熊维吴泽兵朱宽
Owner 上海睿聚环保科技有限公司
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