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A kind of pvc composite material for biogas digester and preparation method thereof

A technology for composite materials and biogas digesters, applied in the field of PVC composite materials for biogas digesters and its preparation, can solve problems such as precipitation of small molecule plasticizers, damage to the surface layer of composite membranes, and impact on service life, so as to improve dryness, add The effect of low number of parts and low use temperature

Active Publication Date: 2016-04-27
思嘉环保材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, PVC composite materials used for the fermentation of animal fats and other oils to produce biogas need to have excellent oil resistance, and the plasticizers used in traditional PVC composite material formulations are generally small molecule accelerators, which are easy to precipitate. Long-term contact with grease will cause the precipitation of small molecule plasticizers, which will cause damage to the surface layer of the composite film, cause leakage, and affect its service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0052]A kind of preparation method of PVC composite material for digester, it comprises the following steps:

[0053] 1) Preparation of primer coating solution: Weigh each raw material according to the weight ratio of each component of the primer coating solution, then put it into a mixer, stir and mix for 15-20 minutes to obtain a primer coating solution with a viscosity of 6000 -8000 centipoise;

[0054] 2) Preparation of E-PVC paste layer coating solution: Weigh the raw materials according to the weight ratio of each component of the E-PVC paste layer coating solution, first soak the powdered nitrile rubber and TPSiV resin in diisononyl phthalate , heating for 4-5 hours, and the heating temperature is 60°C; then put other raw materials into the mixer, stir and mix for 15-20 minutes to obtain the E-PVC paste layer coating liquid, and its viscosity is 4000-5000 centipoise;

[0055] 3) Coating the base coat: Preheat the high-strength polyester fiber sandwich cloth under a hea...

Embodiment 1

[0063] A kind of preparation method of PVC composite material for digester, it comprises the following steps:

[0064] 1) Preparation of primer coating solution: Weigh each raw material according to the ratio of each component of the primer coating solution, then put it into a mixer, stir and mix for 15-20 minutes to obtain a primer coating solution with a viscosity of 6000-8000 Centipoise; The parts by weight of each component of the primer coating solution are as follows:

[0065] 70 parts of polyvinyl chloride paste resin; 30 parts of PVC blended resin;

[0066] 60 parts of diisononyl phthalate; 2 parts of liquid barium zinc stabilizer;

[0067] 4 parts of flame retardant powder; 1 part of viscosity modifier;

[0068] 2) Preparation of E-PVC paste layer coating solution: Weigh the raw materials according to the weight ratio of each component of the E-PVC paste layer coating solution, first soak the powdered nitrile rubber and TPSiV resin in diisononyl phthalate In the mi...

Embodiment 2

[0080] A kind of preparation method of PVC composite material for digester, it comprises the following steps:

[0081] 1) Preparation of primer coating solution: Weigh each raw material according to the ratio of each component of the primer coating solution, then put it into a mixer, stir and mix for 15-20 minutes to obtain a primer coating solution with a viscosity of 6000-8000 Centipoise; The parts by weight of each component of the primer coating solution are as follows:

[0082] 70 parts of polyvinyl chloride paste resin; 30 parts of PVC blended resin;

[0083] 65 parts of diisononyl phthalate; 2.5 parts of liquid barium zinc stabilizer;

[0084] 5 parts of flame retardant powder; 1.5 parts of viscosity modifier;

[0085] 2) Preparation of E-PVC paste layer coating solution: Weigh the raw materials according to the weight ratio of each component of the E-PVC paste layer coating solution, first soak the powdered nitrile rubber and TPSiV resin in diisononyl phthalate In t...

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Abstract

The invention relates to the technical field of biogas digester materials, in particular to a PVC composite material for a biogas digester and a preparation method of the PVC composite material. The PVC composite material comprises E-PVC paste layers, base coat layers and high-strength polyester sandwiched fabric, wherein the base coat layers are formed by coating the top and bottom surfaces of the high-strength polyester sandwiched fabric with base coat layer coating liquid and then performing drying, plasticizing and cooling; the E-PVC paste layers are formed by coating the base coat layers on the top and bottom surfaces of the high-strength polyester sandwiched fabric with E-PVC paste layer coating liquid and then performing drying, plasticizing and cooling. The performance advantages of two materials namely TPU and organic silicon are combined, the surface dryness of the material can be improved, higher physical and mechanical properties can still be kept after the material is aged, and the material has excellent ageing resistance, excellent scraping resistance, excellent oil resistance and lower using temperature.

Description

technical field [0001] The invention relates to the technical field of biogas pit materials, in particular to a PVC composite material for biogas pits and a preparation method thereof. technical background [0002] Biogas digesters are a green and environmentally friendly project. There are a wide range of raw materials for biogas fermentation, such as poultry manure, human excrement, crop straw, deciduous weeds, organic garbage, organic waste residue, waste water and leftovers from agricultural and sideline product processing, etc. Agricultural organic waste, animal fat and other oils can be fermented to produce biogas. With the development of science and technology, soft biogas digesters have appeared, which are very popular among people because of their low price, low investment, light weight, foldable, small size, and convenient transportation and portability. Among them, PVC composite materials used for the fermentation of animal fats and other oils to produce biogas n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/08B32B27/18B32B27/30B32B27/36C08L27/06C08L9/02C08K13/02C08K3/24C08K3/22C08K5/12C08K5/1515B05D1/18B05D1/38
CPCB05D1/18B05D1/38B32B5/02B32B27/08B32B27/18B32B27/304B32B27/36C08K3/22C08K3/24C08K5/12C08K5/1515C08K13/02C08L9/02C08L27/06
Inventor 林生雄张宏旺黄万能蒋石生陈光星邓中文滕碧龙谢志海
Owner 思嘉环保材料科技(上海)有限公司
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