CN112777893A - Multilayer composite septic tank - Google Patents

Multilayer composite septic tank Download PDF

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Publication number
CN112777893A
CN112777893A CN201911085029.3A CN201911085029A CN112777893A CN 112777893 A CN112777893 A CN 112777893A CN 201911085029 A CN201911085029 A CN 201911085029A CN 112777893 A CN112777893 A CN 112777893A
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China
Prior art keywords
parts
septic tank
resin
composite
retardant
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CN201911085029.3A
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Chinese (zh)
Inventor
李崀
李仁燕
宛继峰
涂伟
闫家国
郭小丽
章愿愿
熊培淇
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Hunan Zhongke New Material Co ltd
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Hunan Zhongke New Material Co ltd
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Priority to CN201911085029.3A priority Critical patent/CN112777893A/en
Publication of CN112777893A publication Critical patent/CN112777893A/en
Withdrawn legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • C02F11/04Anaerobic treatment; Production of methane by such processes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a multilayer composite septic tank which comprises a shell, wherein the shell comprises an outer layer, a middle layer and an inner layer which are sequentially stacked from outside to inside, the outer layer is made of modified plant fiber glass fiber reinforced plastic materials, the inner layer is made of composite plastic layers, and the middle layer is made of flame-retardant and pressure-resistant composite resin. Compared with the prior art, the multilayer composite septic tank provided by the invention has the advantages of light weight, good compression resistance, flame retardance, wear resistance and durability.

Description

Multilayer composite septic tank
Technical Field
The invention relates to the technical field of septic tanks, in particular to a multilayer composite septic tank.
Background
At present, the septic tanks commonly used in the prior art are usually made of cement. Septic tanks made of cement have the following disadvantages: the paint is easy to corrode and weathers after being used for a long time, causes leakage and pollutes the environment, and has high manufacturing cost, heavy quality and difficult transportation.
Therefore, there is a need to provide a novel multi-layer composite septic tank to overcome the above-mentioned disadvantages.
Disclosure of Invention
The invention aims to provide a novel multilayer composite septic tank which is light in weight, good in compression resistance, flame-retardant, wear-resistant and durable.
In order to achieve the purpose, the invention provides a multilayer composite septic tank which comprises a shell, wherein the shell comprises an outer layer, a middle layer and an inner layer which are sequentially stacked from outside to inside, the outer layer is made of modified plant fiber glass fiber reinforced plastic materials, the inner layer is made of composite plastic layers, and the middle layer is made of flame-retardant and pressure-resistant composite resin.
Further, the flame-retardant compression-resistant composite resin comprises the following raw materials in parts by weight: 15-25 parts of polyethylene resin, 30-50 parts of polypropylene resin, 10-15 parts of graphite powder, 10-20 parts of tungsten disulfide, 20-30 parts of ceramic micro powder, 25-30 parts of glass fiber, 20-25 parts of calcium carbonate and 10-15 parts of compatilizer
And 5-10 parts of antioxidant.
Further, the flame-retardant compression-resistant composite resin comprises the following raw materials in parts by weight: 15 parts of polyethylene resin, 30 parts of polypropylene resin, 10 parts of graphite powder, 10 parts of tungsten disulfide, 20 parts of ceramic micro powder, 25 parts of glass fiber, 20 parts of calcium carbonate, 10 parts of compatilizer and 5 parts of antioxidant.
Further, the flame-retardant compression-resistant composite resin comprises the following raw materials in parts by weight: 25 parts of polyethylene resin, 50 parts of polypropylene resin, 15 parts of graphite powder, 20 parts of tungsten disulfide, 30 parts of ceramic micro powder, 30 parts of glass fiber, 25 parts of calcium carbonate, 15 parts of compatilizer and 10 parts of antioxidant.
Further, the weight ratio of the polyethylene resin to the polypropylene resin is 1: 2.
Compared with the prior art, the multilayer composite septic tank has the advantages of light weight, strong shock resistance, low thermal expansion coefficient and good flame retardant effect, and simultaneously, the prepared shell has better strength.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:
fig. 1 is a sectional view of a housing of a multi-layer composite septic tank of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the multilayer composite septic tank comprises a shell 1, wherein the shell 1 comprises an outer layer 11, an intermediate layer 12 and an inner layer 13 which are sequentially stacked from outside to inside, the outer layer 11 is made of a modified plant fiber glass fiber reinforced plastic material, the inner layer 12 is made of a composite plastic layer, and the intermediate layer 13 is made of a flame-retardant and pressure-resistant composite resin.
In the first embodiment, the flame-retardant compressive composite resin comprises the following raw materials in parts by weight: 15-25 parts of polyethylene resin, 30-50 parts of polypropylene resin, 10-15 parts of graphite powder, 10-20 parts of tungsten disulfide, 20-30 parts of ceramic micro powder, 25-30 parts of glass fiber, 20-25 parts of calcium carbonate, 10-15 parts of compatilizer and 5-10 parts of antioxidant.
The second embodiment, the flame-retardant compression-resistant composite resin comprises the following raw materials in parts by weight: 15 parts of polyethylene resin, 30 parts of polypropylene resin, 10 parts of graphite powder, 10 parts of tungsten disulfide, 20 parts of ceramic micro powder, 25 parts of glass fiber, 20 parts of calcium carbonate, 10 parts of compatilizer and 5 parts of antioxidant.
In the third embodiment, the flame-retardant compression-resistant composite resin comprises the following raw materials in parts by weight: 25 parts of polyethylene resin, 50 parts of polypropylene resin, 15 parts of graphite powder, 20 parts of tungsten disulfide, 30 parts of ceramic micro powder, 30 parts of glass fiber, 25 parts of calcium carbonate, 15 parts of compatilizer and 10 parts of antioxidant.
The preparation method for preparing the flame-retardant compression-resistant composite resin comprises the following steps: mixing polyethylene resin, polypropylene resin and glass fiber according to the formula amount, and stirring at a low speed for 20min, wherein the stirring speed is 500r/min, so as to obtain a mixture; uniformly mixing graphite powder, tungsten disulfide and ceramic micro powder, adding the mixture into the mixture, and stirring for 10 minutes; then adding calcium carbonate, a compatilizer and an antioxidant into the mixture, heating to 210 ℃ after mixing, and stirring for 2H under the condition of heat preservation to obtain the flame-retardant compression-resistant composite resin.
The weight ratio of the polyethylene resin to the polypropylene resin is 1:2, so that the performances of the polyethylene and the polypropylene can be complemented, the tensile property and the toughness are improved, and the mechanical property of the blend is improved.
The graphite powder has high temperature resistance, electric and thermal conductivity, lubricity, chemical stability, plasticity and thermal vibration resistance, and is suitable for producing refractory materials, conductive materials, wear-resistant materials, lubricants, high-temperature-resistant sealing materials, corrosion-resistant materials, heat-insulating materials, adsorption materials, friction materials, radiation-proof materials and the like.
The tungsten disulfide is used as a lubricant, and has lower friction coefficient and higher compressive strength.
The ceramic micro powder is a light nonmetal multifunctional material, mainly comprises SiO2 and Al2O3, and has the advantages of good dispersibility, high covering power, high whiteness, good suspension property, good chemical stability, good plasticity, high heat-resistant temperature, small density, low ignition loss, good light scattering property and good insulativity; can improve the adsorption property, weather resistance, scrubbing resistance, corrosion resistance and high temperature resistance of the paint, improve the mechanical property of a paint film, increase the transparency and improve the fireproof performance, and can be used for anticorrosion, fireproof, high temperature resistant, powder, building paint and various industrial and civil paints.
Glass fiber, an inorganic non-metallic material with excellent properties, has the advantages of good insulation, strong heat resistance, good corrosion resistance, high mechanical strength, but brittle property and poor wear resistance, and is commonly used as a reinforcing material in composite materials.
The addition of calcium carbonate plays a skeleton role in the plastic products and has a great effect on the stability of the plastic products.
The compatilizer is prepared from styrene-acrylonitrile-glycidyl methacrylate terpolymer and maleic anhydride grafted polyethylene according to the mass ratio of 1: (0.8-1.5) mixing. The epoxy group of the styrene-acrylonitrile-glycidyl methacrylate terpolymer can react with the terminal carboxyl of the polyethylene glycol terephthalate, thereby playing a role in compatibilization; the maleic anhydride grafted polyethylene has the advantages of good processability and other excellent performances of polyethylene, re-reactivity and strong polarity of maleic anhydride polar molecules, good compatibility with polyethylene terephthalate, polypropylene and other polymers, and capability of improving the binding power of the composite synergist with the polyethylene terephthalate and the toughening modifier by matching with the styrene-acrylonitrile-glycidyl methacrylate terpolymer, and also has a toughening effect on a plastic system for a septic tank.
The antioxidant is at least one of antioxidant 1010, antioxidant 168, antioxidant 1076, antioxidant DLTP and antioxidant 126. By adopting the antioxidant, the invention can improve the oxidation resistance of the plastic for the septic tank, solve the problem of easy yellowing of the plastic, effectively inhibit the thermal aging degradation of the plastic for the P septic tank and improve the stability of the plastic.
The composite plastic layer comprises the following substances in parts by weight: 50 parts of polytetrafluoroethylene, 60 parts of ABS resin, 15 parts of fiber reinforced composite material, 10 parts of paraffin, 2 parts of compatilizer and 3 parts of anti-aging agent. ABS resin is a tough, hard and rigid material with easily available raw materials, good comprehensive performance, low price and wide application, polytetrafluoroethylene has high temperature resistance, corrosion resistance, high lubrication and no toxicity, and the two materials are mixed and added into a fiber reinforced composite material to improve the rigidity, hardness and strength. The paraffin wax can improve aging resistance and flexibility.
The modified plant fiber glass fiber reinforced plastic material comprises the following substances in parts by weight: 36 parts of unsaturated polyester resin, 18 parts of epoxy modified phenolic resin, 32 parts of modified plant fiber, 10 parts of kaolin, 10 parts of silicon carbide micro powder, 8 parts of quartz powder, 4 parts of calcium stearate, 7 parts of titanate coupling agent, 4 parts of curing agent and 0.2 part of antioxidant; the preparation method for preparing the modified plant fiber glass fiber reinforced plastic material comprises the following steps: mixing unsaturated polyester resin, epoxy modified phenolic resin and modified plant fiber according to the formula amount, and stirring at a low speed of 500r/min for 8min to obtain a mixture; adding kaolin, silicon carbide micro powder, quartz powder, calcium stearate, titanate coupling agent, curing agent and antioxidant into the mixture, mixing, heating to 210 ℃, preserving heat and stirring for 4 hours to obtain the plant fiber composite glass fiber reinforced plastic material.
Compared with the prior art, the multilayer composite septic tank has the advantages of light weight, strong shock resistance, low thermal expansion coefficient and good flame retardant effect, and simultaneously, the prepared shell has better strength.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. The utility model provides a compound septic tank of multilayer, includes the casing, its characterized in that, the casing includes that outside-in folds skin, intermediate level and the inlayer of establishing in proper order, the skin adopts modified plant fiber glass steel material, the inlayer adopts compound plastic layer, the intermediate level adopts fire-retardant resistance to compression composite resin.
2. The multi-layer composite septic tank of claim 1, wherein the flame-retardant and pressure-resistant composite resin comprises the following raw materials in parts by weight: 15-25 parts of polyethylene resin, 30-50 parts of polypropylene resin, 10-15 parts of graphite powder, 10-20 parts of tungsten disulfide, 20-30 parts of ceramic micro powder, 25-30 parts of glass fiber, 20-25 parts of calcium carbonate, 10-15 parts of compatilizer and 5-10 parts of antioxidant.
3. The multi-layer composite septic tank of claim 2, wherein the flame-retardant and pressure-resistant composite resin comprises the following raw materials in parts by weight: 15 parts of polyethylene resin, 30 parts of polypropylene resin, 10 parts of graphite powder, 10 parts of tungsten disulfide, 20 parts of ceramic micro powder, 25 parts of glass fiber, 20 parts of calcium carbonate, 10 parts of compatilizer and 5 parts of antioxidant.
4. The multi-layer composite septic tank of claim 2, wherein the flame-retardant and pressure-resistant composite resin comprises the following raw materials in parts by weight: 25 parts of polyethylene resin, 50 parts of polypropylene resin, 15 parts of graphite powder, 20 parts of tungsten disulfide, 30 parts of ceramic micro powder, 30 parts of glass fiber, 25 parts of calcium carbonate, 15 parts of compatilizer and 10 parts of antioxidant.
5. The multi-layer composite septic tank of any of claims 2 to 4, wherein the weight ratio of the polyethylene resin to the polypropylene resin is 1: 2.
CN201911085029.3A 2019-11-08 2019-11-08 Multilayer composite septic tank Withdrawn CN112777893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911085029.3A CN112777893A (en) 2019-11-08 2019-11-08 Multilayer composite septic tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911085029.3A CN112777893A (en) 2019-11-08 2019-11-08 Multilayer composite septic tank

Publications (1)

Publication Number Publication Date
CN112777893A true CN112777893A (en) 2021-05-11

Family

ID=75748158

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911085029.3A Withdrawn CN112777893A (en) 2019-11-08 2019-11-08 Multilayer composite septic tank

Country Status (1)

Country Link
CN (1) CN112777893A (en)

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Application publication date: 20210511