CN105331016A - Method for producing PVC profile by taking alpha-hemihydrate gypsum, calcium oxide and calcium carbonate as filler - Google Patents
Method for producing PVC profile by taking alpha-hemihydrate gypsum, calcium oxide and calcium carbonate as filler Download PDFInfo
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- CN105331016A CN105331016A CN201510846548.2A CN201510846548A CN105331016A CN 105331016 A CN105331016 A CN 105331016A CN 201510846548 A CN201510846548 A CN 201510846548A CN 105331016 A CN105331016 A CN 105331016A
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Abstract
The invention provides a method for producing a PVC profile by taking alpha-hemihydrate gypsum, calcium oxide and calcium carbonate as filler. The following raw materials in parts by are prepared: 70-100 parts of PVC resin, 30-45 parts of phosphogypsum, 0.5-1 parts of crystal modifier, 5-8 parts of calcium oxide, 3-6 parts of stabilizer, 0.5-2 parts of antioxidant, 1-2 parts of lubricant and 5-10 parts of compound plasticizer. According to the method for producing the PCV profile by taking the alpha-hemihydrate gypsum, the calcium oxide and the calcium carbonate as the filler, the alpha-hemihydrate gypsum produced by the phosphogypsum is utilized, and the calcium oxide is added to be taken as the filler to produce the PVC profile, so that the cooling time of the PVC profile to be manufactured is shortened, and meanwhile, the PVC profile has a more compact structure; therefore, the hardness of the PVC profile can be improved, the produced PVC profile has compression resistance, stretching resistance and wear resistance.
Description
Technical field
The present invention relates to pvc pipe production technical field, particularly relate to the method for a kind of alpha-semi water plaster stone+calcium oxide+calcium carbonate as filler production PVC profile.
Background technology
Phosphogypsum is the solid waste of Phosphate Fertilizer Industry, and phosphoric acid is the basis of Phosphate Fertilizer Industry.Wet method phosphoric acid manufacture process is the phosphoric acid production technique commonly used the most.In wet method phosphoric acid manufacture process, first produce extraction slip by sulfuric acid decomposition ground phosphate rock, then filtration washing obtains phosphoric acid, and just can produce phosphogypsum waste in the process of filtration washing.General often production 1 ton of phosphoric acid about produces 5 ~ 6 tons of phosphogypsums, often produces 1 ton of diammonium phosphate and then can discharge 2.5 ~ 5 tons of phosphogypsums.Along with the fast development of China's high-concentration compound fertilizer industry in recent years, added up to by phosphate fertilizer class chemical enterprise and other enterprise (as composite additive) every year and be about more than 2,000 ten thousand tons.Therefore, there is a large amount of investigators to take to comprehensive utilizating research in phosphogypsum, and the raw material of phosphogypsum as material of construction is prepared, as insulation blocks etc.; Investigator is also had to it can be used as the raw material etc. preparing calcium oxide, sulfurous gas; However, be less than 10% to the comprehensive utilization ratio of phosphogypsum every year, the comprehensive utilization of phosphogypsum is developed also to be needed further to strengthen process.
In prior art, in PVC (polyvinyl chloride), add phosphogypsum (filler), coordinate stablizer, lubricant and other additives to make various PVC material product, as PVC, PVC profile, PVC board etc.And PVC is a kind of white powder of nontoxic, odorless, at home, the output of PVC and consumption all occupy first of five large resins for universal use; Based on this, launch to study to the filler of phosphogypsum as PVC material product herein, in conjunction with the production technique of PVC, design a set of technique utilizing phosphogypsum production PVC material product, for the comprehensive utilization of phosphogypsum provides new way.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the method for a kind of alpha-semi water plaster stone+calcium oxide+calcium carbonate as filler production PVC profile.
The present invention is achieved by the following technical programs.
A kind of alpha-semi water plaster stone+calcium oxide+calcium carbonate provided by the invention is as the method for filler production PVC profile, comprise the raw material of following weight part: polyvinyl chloride (PVC) RESINS 70 ~ 100 parts, phosphogypsum 30 ~ 45 parts, crystal modifier 0.5 ~ 1 part, 5 ~ 8 parts, calcium oxide, stablizer 3 ~ 6 parts, antioxidant 0.5 ~ 2 part, lubricant 1 ~ 2 part, composite elasticizer 5 ~ 10 parts; The explained hereafter technique of its PVC profile is:
1) making of filler, phosphogypsum is shattered into 100 ~ 300 object particles, then ammonium bicarbonate soln immersion 20 ~ 50min that concentration is 10 ~ 15% is put into, then dewatered drying, then tubular reactor is put into, and add crystal modifier, at 100 ~ 120 DEG C, elementary turn of brilliant reaction is carried out in the steam pressure environment of 0.5 ~ 0.8Pa, after reaction 10 ~ 30min, then add calcium oxide to continue at 110 ~ 130 DEG C, ultimate turn of brilliant reaction is carried out in the steam pressure environment of 0.2 ~ 0.5Pa, and continue to pass into carbon dioxide, reaction 1 ~ 2h, keep passing into carbon dioxide and be cooled to normal temperature, then carry out grinding to form 400 ~ 800 objects and obtain filler,
2) batch mixing, filler, calcium oxide, polyvinyl chloride (PVC) RESINS, stablizer, antioxidant, lubricant, composite elasticizer are dropped in homogenizer, and be warming up to more than 120 ~ 135 DEG C, more than mix and blend 10min, then discharge material, and keep temperature of charge at 60 ~ 80 DEG C;
3) extrusion molding, puts into material and is placed in twin screw extruder, and barrel temperature controls at 120 ~ 180 DEG C, extrusion profile stock;
4) finished product, through cooling forming, cuts as requested and obtains finished product.
Further, described crystal modifier is 40% titanium sulfate, 50% Trisodium Citrate and 10% nano-sized carbon.
Further, described stablizer is calcium carboxylates, the calcium acetylacetonate of equivalent.
Further, described antioxidant is right, p octtttyl diphenylamine, carbamate, alkylation phenyl-a-naphthylamine, octyl group-butyl pentanoic, containing ester group phenol, containing ester group hindered phenol, and one or more of sulfur-bearing ether phenol.
Further, described lubricant is at least one in stearyl alcohol, paraffin, TriMethylolPropane(TMP), oleylamide, distearyl dimethyl ammonium chloride, sylvic acid, polydimethylsiloxane.
Further, described composite elasticizer is at least one in plam oil, dioctyl phthalate (DOP), dimixo-octyl phthalate and Phthalic acid, diallyl ester.
Further, described step 3) in barrel be divided into three sections, first paragraph barrel temperature is 150 ~ 170 DEG C, and second segment barrel temperature is 163 ~ 180 DEG C, and the 3rd section of barrel temperature is 120 ~ 150 DEG C.
Beneficial effect of the present invention is: the invention enables phosphogypsum to instead of calcium powder in conventional P VC section bar preparation process, expanded the source of PVC calcium powder, reduced the cost of PVC production calcium powder, improve phosphogypsum comprehensive utilization ratio; Use phosphogypsum to produce the alpha-semi water plaster stone of part simultaneously, improve the new energy of bonding of filler and polyvinyl chloride, and adding portion calcium oxide makes PVC profile as filler, the cooling time of the making of PVC profile can be accelerated, make again PVC profile have structure comparatively closely simultaneously, the hardness of PVC profile can be improved, coordinate the use of stablizer, antioxidant, lubricant, composite elasticizer, make the PVC profile made have resistance to compression, stretch-proof, anti abrasive performance.
Embodiment
Further describe technical scheme of the present invention below, but described in claimed scope is not limited to.
Embodiment one
A kind of alpha-semi water plaster stone+calcium oxide+calcium carbonate provided by the invention is as the method for filler production PVC profile, comprise following raw material: polyvinyl chloride (PVC) RESINS 70kg, phosphogypsum 30kg, crystal modifier 0.5kg, calcium oxide 5kg, stablizer 3kg, antioxidant 0.5kg, lubricant 1kg, composite elasticizer 5kg;
Further, described crystal modifier is 40% titanium sulfate, 50% Trisodium Citrate and 10% nano-sized carbon.
Further, described stablizer is calcium carboxylates, the calcium acetylacetonate of equivalent.
Further, described antioxidant is right, p octtttyl diphenylamine, carbamate, alkylation phenyl-a-naphthylamine, octyl group-butyl pentanoic, containing ester group phenol, containing ester group hindered phenol, and one or more of sulfur-bearing ether phenol.
Further, described lubricant is at least one in stearyl alcohol, paraffin, TriMethylolPropane(TMP), oleylamide, distearyl dimethyl ammonium chloride, sylvic acid, polydimethylsiloxane.
Further, described composite elasticizer is at least one in plam oil, dioctyl phthalate (DOP), dimixo-octyl phthalate and Phthalic acid, diallyl ester.
The explained hereafter technique of its PVC profile is:
1) making of filler, phosphogypsum is shattered into 100 ~ 300 object particles, then ammonium bicarbonate soln immersion 20 ~ 50min that concentration is 10 ~ 15% is put into, then dewatered drying, then tubular reactor is put into, and add crystal modifier, at 100 ~ 120 DEG C, elementary turn of brilliant reaction is carried out in the steam pressure environment of 0.5 ~ 0.8Pa, after reaction 10 ~ 30min, then add calcium oxide to continue at 110 ~ 130 DEG C, ultimate turn of brilliant reaction is carried out in the steam pressure environment of 0.2 ~ 0.5Pa, and continue to pass into carbon dioxide, reaction 1 ~ 2h, keep passing into carbon dioxide and be cooled to normal temperature, then carry out grinding to form 400 ~ 800 objects and obtain filler,
2) batch mixing, filler, calcium oxide, polyvinyl chloride (PVC) RESINS, stablizer, antioxidant, lubricant, composite elasticizer are dropped in homogenizer, and be warming up to more than 120 ~ 135 DEG C, more than mix and blend 10min, then discharge material, and keep temperature of charge at 60 ~ 80 DEG C;
3) extrusion molding, puts into material and is placed in twin screw extruder, and barrel barrel is divided into three sections, and first paragraph barrel temperature is 150 ~ 170 DEG C, and second segment barrel temperature is 163 ~ 180 DEG C, and the 3rd section of barrel temperature is 120 ~ 150 DEG C, extrusion profile stock;
4) finished product, through cooling forming, cuts as requested and obtains finished product.
Embodiment two
A kind of alpha-semi water plaster stone+calcium oxide+calcium carbonate provided by the invention is as the method for filler production PVC profile, comprise following raw material: polyvinyl chloride (PVC) RESINS 100kg, phosphogypsum 45kg, crystal modifier 1kg, calcium oxide 8kg, stablizer 6kg, antioxidant 2kg, lubricant 2kg, composite elasticizer 10kg;
Further, described crystal modifier is 40% titanium sulfate, 50% Trisodium Citrate and 10% nano-sized carbon.
Further, described stablizer is calcium carboxylates, the calcium acetylacetonate of equivalent.
Further, described antioxidant is right, p octtttyl diphenylamine, carbamate, alkylation phenyl-a-naphthylamine, octyl group-butyl pentanoic, containing ester group phenol, containing ester group hindered phenol, and one or more of sulfur-bearing ether phenol.
Further, described lubricant is at least one in stearyl alcohol, paraffin, TriMethylolPropane(TMP), oleylamide, distearyl dimethyl ammonium chloride, sylvic acid, polydimethylsiloxane.
Further, described composite elasticizer is at least one in plam oil, dioctyl phthalate (DOP), dimixo-octyl phthalate and Phthalic acid, diallyl ester.
The explained hereafter technique of its PVC profile is:
1) making of filler, phosphogypsum is shattered into 100 ~ 300 object particles, then ammonium bicarbonate soln immersion 20 ~ 50min that concentration is 10 ~ 15% is put into, then dewatered drying, then tubular reactor is put into, and add crystal modifier, at 100 ~ 120 DEG C, elementary turn of brilliant reaction is carried out in the steam pressure environment of 0.5 ~ 0.8Pa, after reaction 10 ~ 30min, then add calcium oxide to continue at 110 ~ 130 DEG C, ultimate turn of brilliant reaction is carried out in the steam pressure environment of 0.2 ~ 0.5Pa, and continue to pass into carbon dioxide, reaction 1 ~ 2h, keep passing into carbon dioxide and be cooled to normal temperature, then carry out grinding to form 400 ~ 800 objects and obtain filler,
2) batch mixing, filler, calcium oxide, polyvinyl chloride (PVC) RESINS, stablizer, antioxidant, lubricant, composite elasticizer are dropped in homogenizer, and be warming up to more than 120 ~ 135 DEG C, more than mix and blend 10min, then discharge material, and keep temperature of charge at 60 ~ 80 DEG C;
3) extrusion molding, puts into material and is placed in twin screw extruder, and barrel barrel is divided into three sections, and first paragraph barrel temperature is 150 ~ 170 DEG C, and second segment barrel temperature is 163 ~ 180 DEG C, and the 3rd section of barrel temperature is 120 ~ 150 DEG C, extrusion profile stock;
4) finished product, through cooling forming, cuts as requested and obtains finished product.
Claims (7)
1. one kind by the method for alpha-semi water plaster stone+calcium oxide+calcium carbonate as filler production PVC profile, it is characterized in that: the raw material comprising following weight part: polyvinyl chloride (PVC) RESINS 70 ~ 100 parts, phosphogypsum 30 ~ 45 parts, crystal modifier 0.5 ~ 1 part, 5 ~ 8 parts, calcium oxide, stablizer 3 ~ 6 parts, antioxidant 0.5 ~ 2 part, lubricant 1 ~ 2 part, composite elasticizer 5 ~ 10 parts; The explained hereafter technique of its PVC profile is:
1) making of filler, phosphogypsum is shattered into 100 ~ 300 object particles, then ammonium bicarbonate soln immersion 20 ~ 50min that concentration is 10 ~ 15% is put into, then dewatered drying, then tubular reactor is put into, and add crystal modifier, at 100 ~ 120 DEG C, elementary turn of brilliant reaction is carried out in the steam pressure environment of 0.5 ~ 0.8Pa, after reaction 10 ~ 30min, then add calcium oxide to continue at 110 ~ 130 DEG C, ultimate turn of brilliant reaction is carried out in the steam pressure environment of 0.2 ~ 0.5Pa, and continue to pass into carbon dioxide, reaction 1 ~ 2h, keep passing into carbon dioxide and be cooled to normal temperature, then carry out grinding to form 400 ~ 800 objects and obtain filler,
2) batch mixing, filler, calcium oxide, polyvinyl chloride (PVC) RESINS, stablizer, antioxidant, lubricant, composite elasticizer are dropped in homogenizer, and be warming up to more than 120 ~ 135 DEG C, more than mix and blend 10min, then discharge material, and keep temperature of charge at 60 ~ 80 DEG C;
3) extrusion molding, puts into material and is placed in twin screw extruder, and barrel temperature controls at 120 ~ 180 DEG C, extrusion profile stock;
4) finished product, through cooling forming, cuts as requested and obtains finished product.
2. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described crystal modifier is 40% titanium sulfate, 50% Trisodium Citrate and 10% nano-sized carbon.
3. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described stablizer is calcium carboxylates, the calcium acetylacetonate of equivalent.
4. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described antioxidant is right, p octtttyl diphenylamine, carbamate, alkylation phenyl-a-naphthylamine, octyl group-butyl pentanoic, containing ester group phenol, containing ester group hindered phenol, one or more of sulfur-bearing ether phenol.
5. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described lubricant is at least one in stearyl alcohol, paraffin, TriMethylolPropane(TMP), oleylamide, distearyl dimethyl ammonium chloride, sylvic acid, polydimethylsiloxane.
6. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described composite elasticizer is at least one in plam oil, dioctyl phthalate (DOP), dimixo-octyl phthalate and Phthalic acid, diallyl ester.
7. alpha-semi water plaster stone+calcium oxide+calcium carbonate as claimed in claim 1 is as the method for filler production PVC profile, it is characterized in that: described step 3) in barrel be divided into three sections, first paragraph barrel temperature is 150 ~ 170 DEG C, second segment barrel temperature is 163 ~ 180 DEG C, and the 3rd section of barrel temperature is 120 ~ 150 DEG C.
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| CN201510846548.2A CN105331016A (en) | 2015-11-29 | 2015-11-29 | Method for producing PVC profile by taking alpha-hemihydrate gypsum, calcium oxide and calcium carbonate as filler |
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| CN201510846548.2A CN105331016A (en) | 2015-11-29 | 2015-11-29 | Method for producing PVC profile by taking alpha-hemihydrate gypsum, calcium oxide and calcium carbonate as filler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303562A (en) * | 2020-04-15 | 2020-06-19 | 贵州益全佳科技有限公司 | PVC pipe containing phosphogypsum and preparation method thereof |
| CN116199451A (en) * | 2023-03-08 | 2023-06-02 | 深圳市石能纸业有限公司 | Formula of special stone material for pipeline |
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| CN1651348A (en) * | 2004-02-02 | 2005-08-10 | 贵阳鹏宏高新技术装饰材料有限公司 | Method of producing architectural decorative material and wall bady material using phosphogypsum |
| CN103319762A (en) * | 2013-06-24 | 2013-09-25 | 清华大学 | Method for preparing high filling polyvinyl chloride or polyolefin composite material by employing industrial solid wastes |
| CN103435937A (en) * | 2013-08-28 | 2013-12-11 | 贵州开磷遵义碱厂 | Method for using phosphogypsum as polyvinyl chloride resin filler |
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2015
- 2015-11-29 CN CN201510846548.2A patent/CN105331016A/en active Pending
Patent Citations (3)
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| CN1651348A (en) * | 2004-02-02 | 2005-08-10 | 贵阳鹏宏高新技术装饰材料有限公司 | Method of producing architectural decorative material and wall bady material using phosphogypsum |
| CN103319762A (en) * | 2013-06-24 | 2013-09-25 | 清华大学 | Method for preparing high filling polyvinyl chloride or polyolefin composite material by employing industrial solid wastes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303562A (en) * | 2020-04-15 | 2020-06-19 | 贵州益全佳科技有限公司 | PVC pipe containing phosphogypsum and preparation method thereof |
| CN116199451A (en) * | 2023-03-08 | 2023-06-02 | 深圳市石能纸业有限公司 | Formula of special stone material for pipeline |
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Application publication date: 20160217 |