CN103059457B - A kind of pvc tubing containing modified coal ash and preparation method thereof - Google Patents

A kind of pvc tubing containing modified coal ash and preparation method thereof Download PDF

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Publication number
CN103059457B
CN103059457B CN201210534461.8A CN201210534461A CN103059457B CN 103059457 B CN103059457 B CN 103059457B CN 201210534461 A CN201210534461 A CN 201210534461A CN 103059457 B CN103059457 B CN 103059457B
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Prior art keywords
coal ash
modified coal
pvc tubing
weight
stuff
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CN201210534461.8A
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CN103059457A (en
Inventor
强健娜
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Jiangsu taixie Intelligent Technology Co., Ltd
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An Huihai Na Chuan Su Ye Science And Technology Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885Screw or gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing

Abstract

Does is the invention discloses a kind of pvc tubing containing modified coal ash and preparation method thereof, the weight part of its constitutive material: SG-5 type polyvinyl chloride resin 50-55, bisphenol A polycarbonate 40-45, poly-4-methyl-1-pentene 0.8-1.2, ferrocene 2-4, ethylene group two hard esteramides 1.4-1.8, lead sulfate tribasic 1.3-1.5, modified coal ash 1-2, titanium dioxide 35-38, antioxidant 1010? 1.4-1.6, epoxidation tri-glyceride 0.5-0.7 and anilinomethyl triethoxysilane 0.9-1.1; The present invention, by optimizing further formula, with the addition of modified coal ash composition, makes the dispersion that can promote mineral filler in the course of processing of pvc tubing in formula, improve the mobility of pvc melt, tensile strength and elongation at break can also be promoted, good toughness, the shortcoming that hardness is low; And preparation method is simple, can effectively be applied in all trades and professions.

Description

A kind of pvc tubing containing modified coal ash and preparation method thereof
Technical field
The present invention relates to pvc tubing production field, particularly relate to a kind of pvc tubing containing modified coal ash and preparation method thereof.
Background technology
The major ingredient of pvc tubing is polyvinyl chloride, add softening agent in addition, the auxiliary materials such as antiaging agent increase its thermotolerance, toughness, ductility etc., pvc is liked by the world today deeply, the rather popular and a kind of synthetic materials be also widely used, PVC is a kind of tubing of maturation, be mainly used in water supply and sewage work, pvc tubing has acidproof, alkaline-resisting, erosion resistance, intensity advantages of higher, but, at present large step point production manufacturer production pvc tubing shock resistance out bad, especially the plasticizing process in the processing of PVC product, the dispersion of inorganics and the processing fluidity of pvc melt are difficult problems always.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of pvc tubing containing modified coal ash and preparation method thereof is provided.
For achieving the above object, the present invention adopts following technical scheme:
Pvc tubing containing modified coal ash, the weight part of its constitutive material is: SG-5 type polyvinyl chloride resin 50-55, bisphenol A polycarbonate 40-45, poly-4-methyl-1-pentene 0.8-1.2, ferrocene 2-4, ethylene group two hard esteramides 1.4-1.8, lead sulfate tribasic 1.3-1.5, modified coal ash 1-2, titanium dioxide 35-38, antioxidant 1010 1.4-1.6, epoxidation tri-glyceride 0.5-0.7 and anilinomethyl triethoxysilane 0.9-1.1.
Pvc tubing containing modified coal ash, the weight part of its constitutive material is: SG-5 type polyvinyl chloride resin 52, bisphenol A polycarbonate 42, poly-4-methyl-1-pentene 1, ferrocene 3, ethylene group two hard esteramides 1.6, lead sulfate tribasic 1.4, modified coal ash 1.5, titanium dioxide 36, antioxidant 1010 1.5, epoxidation tri-glyceride 0.6 and anilinomethyl triethoxysilane 1.
The preparation method of the pvc tubing containing modified coal ash, comprises the following steps:
(1) each raw material is taken by the weight part of constitutive material, mix in pot in heat and add SG-5 type polyvinyl chloride resin and bisphenol A polycarbonate, heating 2-3 minute, then poly-4-methyl-1-pentene, ferrocene, ethylene group two hard esteramides, lead sulfate tribasic, modified coal ash, titanium dioxide, antioxidant 1010, epoxidation tri-glyceride and anilinomethyl triethoxysilane is added successively, reaction 5-7 minute;
(2) then join in parallel double-screw extruder and carry out melt blending and namely granulation obtains stuff and other stuff, extruder barrel temperature is 165-175 DEG C, and die head temperature is 183-218 DEG C, and screw speed is 500-550rpm;
(3) adopt conical double screw extruder by shaping for the stuff and other stuff extruding pipe material of gained, obtain the pvc tubing containing modified coal ash, extruder barrel temperature is 180-200 DEG C, and die head temperature is 185-210 DEG C.
The preparation method of described modified coal ash is: flyash is put into 13-15% sodium hydroxide solution and soak after 2-3 hour, pull out, dry at 53-58 DEG C of temperature to water content 2-3%, after add the whiteruss being equivalent to its weight 3-4% immediately and mix, then, add the aluminium hydroxide being equivalent to its weight 5-8%, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester of 5-8%, the tripoly phosphate sodium STPP of 1-2%, the iron ore tailings of 3-4%, mix, at 60-70 DEG C, 3500-4000 rev/min is stirred 30-50 minute, mixing, oven dry is ground to 1.0-1.2 μm of powder, obtain modified coal ash.
Advantage of the present invention:
The present invention, by optimizing further formula, with the addition of modified coal ash composition, makes the dispersion that can promote mineral filler in the course of processing of pvc tubing in formula, improve the mobility of pvc melt, tensile strength and elongation at break can also be promoted, good toughness, the shortcoming that hardness is low; And preparation method is simple, can effectively be applied in all trades and professions.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details.
Embodiment 1: the pvc tubing containing modified coal ash, the weight part (kilogram) of its constitutive material is: SG-5 type polyvinyl chloride resin 52, bisphenol A polycarbonate 42, poly-4-methyl-1-pentene 1, ferrocene 3, ethylene group two hard esteramides 1.6, lead sulfate tribasic 1.4, modified coal ash 1.5, titanium dioxide 36, antioxidant 1010 1.5, epoxidation tri-glyceride 0.6 and anilinomethyl triethoxysilane 1.
The preparation method of the pvc tubing containing modified coal ash, comprises the following steps:
(1) each raw material is taken by the weight part of constitutive material, mix in pot in heat and add SG-5 type polyvinyl chloride resin and bisphenol A polycarbonate, heating 2-3 minute, then poly-4-methyl-1-pentene, ferrocene, ethylene group two hard esteramides, lead sulfate tribasic, modified coal ash, titanium dioxide, antioxidant 1010, epoxidation tri-glyceride and anilinomethyl triethoxysilane is added successively, reaction 5-7 minute;
(2) then join in parallel double-screw extruder and carry out melt blending and namely granulation obtains stuff and other stuff, extruder barrel temperature is 165-175 DEG C, and die head temperature is 183-218 DEG C, and screw speed is 500-550rpm;
(3) adopt conical double screw extruder by shaping for the stuff and other stuff extruding pipe material of gained, obtain the pvc tubing containing modified coal ash, extruder barrel temperature is 180-200 DEG C, and die head temperature is 185-210 DEG C.
The preparation method of modified coal ash is: put into by flyash after 15% sodium hydroxide solution soaks 3 hours, pull out, dry at 53-58 DEG C of temperature to water content 3%, after add the whiteruss being equivalent to its weight 4% immediately and mix, then, add the aluminium hydroxide being equivalent to its weight 8%, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester of 5%, the tripoly phosphate sodium STPP of 1%, the iron ore tailings of 4%, mix, at 60-70 DEG C, 3500-4000 rev/min is stirred 30-50 minute, mixing, oven dry is ground to 1.0-1.2 μm of powder, obtain modified coal ash.
The contrast verification test result of the pvc tubing that above-described embodiment obtains is as following table:
Sequence number Test item and unit QB/T2480 index Common pvc tubing Sample in this enforcement
1 Outward appearance Inside and outside wall should be smooth, without surface imperfection such as depression and decomposition variable color lines Inside and outside wall is smooth, without surface imperfection such as depression and decomposition variable color lines Inside and outside wall is smooth, without surface imperfection such as depression and decomposition variable color lines
2 Tensile strength, Mpa ≥43 43 56.5
3 Elongation at break, % ≥80 105 117
4 Longitudinal welds, % ≤3.5 3.1 1.4
5 Vicat softening temperature, DEG C ≥75 83 92
6 Falling weight impact test (20 DEG C, 2kg, 2m), TIR ≤10% 5.5 1.45

Claims (2)

1. the pvc tubing containing modified coal ash, is characterized in that the weight part of its constitutive material is: SG-5 type polyvinyl chloride resin 50-55, bisphenol A polycarbonate 40-45, poly-4-methyl-1-pentene 0.8-1.2, ferrocene 2-4, ethylene group two hard esteramides 1.4-1.8, lead sulfate tribasic 1.3-1.5, modified coal ash 1-2, titanium dioxide 35-38, antioxidant 1010 1.4-1.6, epoxidation tri-glyceride 0.5-0.7 and anilinomethyl triethoxysilane 0.9-1.1;
The preparation method of the described pvc tubing containing modified coal ash, comprises the following steps:
(1) each raw material is taken by the weight part of constitutive material, mix in pot in heat and add SG-5 type polyvinyl chloride resin and bisphenol A polycarbonate, heating 2-3 minute, then poly-4-methyl-1-pentene, ferrocene, ethylene group two hard esteramides, lead sulfate tribasic, modified coal ash, titanium dioxide, antioxidant 1010, epoxidation tri-glyceride and anilinomethyl triethoxysilane is added successively, reaction 5-7 minute;
(2) then join in parallel double-screw extruder and carry out melt blending and namely granulation obtains stuff and other stuff, extruder barrel temperature is 165-175 DEG C, and die head temperature is 183-218 DEG C, and screw speed is 500-550rpm;
(3) adopt conical double screw extruder by shaping for the stuff and other stuff extruding pipe material of gained, obtain the pvc tubing containing modified coal ash, extruder barrel temperature is 180-200 DEG C, and die head temperature is 185-210 DEG C, the preparation method of described modified coal ash is: flyash is put into 13-15% sodium hydroxide solution and soak after 2-3 hour, pull out, dry at 53-58 DEG C of temperature to water content 2-3%, after add the whiteruss being equivalent to its weight 3-4% immediately and mix, then, add the aluminium hydroxide being equivalent to its weight 5-8%, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester of 5-8%, the tripoly phosphate sodium STPP of 1-2%, the iron ore tailings of 3-4%, mix, at 60-70 DEG C, 3500-4000 rev/min is stirred 30-50 minute, mixing, oven dry is ground to 1.0-1.2 μm of powder, obtain modified coal ash.
2. the pvc tubing containing modified coal ash according to claim 1, is characterized in that the weight part of its constitutive material is: SG-5 type polyvinyl chloride resin 52, bisphenol A polycarbonate 42, poly-4-methyl-1-pentene 1, ferrocene 3, ethylene group two hard esteramides 1.6, lead sulfate tribasic 1.4, modified coal ash 1.5, titanium dioxide 36, antioxidant 1010 1.5, epoxidation tri-glyceride 0.6 and anilinomethyl triethoxysilane 1.
CN201210534461.8A 2012-12-12 2012-12-12 A kind of pvc tubing containing modified coal ash and preparation method thereof Active CN103059457B (en)

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Publication number Priority date Publication date Assignee Title
CN104119564A (en) * 2014-07-02 2014-10-29 合肥和安机械制造有限公司 Modified fly ash for heat shrinkable tube material and preparation method thereof
CN111153662A (en) * 2020-01-18 2020-05-15 广东承沐建设工程有限公司 Concrete and preparation method thereof

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Publication number Priority date Publication date Assignee Title
WO1999037592A1 (en) * 1998-01-26 1999-07-29 Board Of Control Of Michigan Technological University Processed fly ash as a filler in plastics
CN101024712A (en) * 2006-02-24 2007-08-29 吴炳裔 Modified super-fine cool-ash composite plastic
CN101225205A (en) * 2007-01-16 2008-07-23 华东理工大学 Coal ash fiber cotton reinforced chloroethylene composite material and preparation method thereof
CN101386485A (en) * 2008-10-09 2009-03-18 江南大学 Fly ash surface modification method and application in water-proof mortar
CN102732063A (en) * 2012-06-12 2012-10-17 华东师范大学 Modified fly ash, preparation method thereof, and preparation apparatus thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037592A1 (en) * 1998-01-26 1999-07-29 Board Of Control Of Michigan Technological University Processed fly ash as a filler in plastics
CN101024712A (en) * 2006-02-24 2007-08-29 吴炳裔 Modified super-fine cool-ash composite plastic
CN101225205A (en) * 2007-01-16 2008-07-23 华东理工大学 Coal ash fiber cotton reinforced chloroethylene composite material and preparation method thereof
CN101386485A (en) * 2008-10-09 2009-03-18 江南大学 Fly ash surface modification method and application in water-proof mortar
CN102732063A (en) * 2012-06-12 2012-10-17 华东师范大学 Modified fly ash, preparation method thereof, and preparation apparatus thereof

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Address after: 210000 3 / F, building 06, Taishan science and Technology Innovation Park, No. 18, Pusi Road, Taishan street, Jiangbei new district, Nanjing City, Jiangsu Province

Patentee after: Jiangsu taixie Intelligent Technology Co., Ltd

Address before: 239200, No. 25, Jiangpu Road, Anhui Economic Development Zone, Chuzhou

Patentee before: ANHUI HAINA SICHUAN PLASTICS TECHNOLOGY Co.,Ltd.

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