CN104045942B - PVC and preparation method thereof - Google Patents
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- CN104045942B CN104045942B CN201410318541.9A CN201410318541A CN104045942B CN 104045942 B CN104045942 B CN 104045942B CN 201410318541 A CN201410318541 A CN 201410318541A CN 104045942 B CN104045942 B CN 104045942B
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Abstract
The invention discloses a kind of PVC preparation method, described method includes that by polyvinyl chloride resin, stabilizer, CPE (chlorinated polyethylene), NBR (nitrile rubber), stearic acid, filler, paraffin, OB fluorescent whitening agent and PE wax extrusion molding be described PVC；Wherein, the average degree of polymerization of described polyvinyl chloride resin is 720 850；The weight average molecular weight of described PE wax is 2,000 5000；The weight average molecular weight of described CPE is 100,000 30 ten thousand, and relative to the CPE of 100 weight portions, in CPE, the content of chlorine is 25 45 weight portions；The weight average molecular weight of described NBR is 200,000 40 ten thousand；Described stabilizer is one or more in calcium stearate, castor oil acid calcium, zinc stearate and zinc ricinate；Described filler is calcium carbonate and/or titanium dioxide.This PVC has the shock resistance of excellence.
Description
Technical field
The present invention relates to plastic pipe field, in particular it relates to a kind of PVC and preparation method thereof.
Background technology
Polrvinyl chloride (PVC) hard product causes due to the shock resistance difference of pure PVC material self
The shock resistance of its hard product is poor, and particularly low-temperature impact resistance difference causes it to answer in a lot of fields
With limited.It is presently mainly in pure PVC material, adds anti-impact modifier raising shock resistance.
Anti-impact modifier mainly has CPE (chlorinated polyethylene), ACR (acrylic polymer), MBS
(acrylonitrile-butadiene-styrene (ABS) is common for (MBS), ABS
Polymers), EVA (ethylene-vinyl acetate copolymer), EPR (ethylene propylene monomer), EPDM (three
Unit's EP rubbers) and nitrile rubber (NBR).Generally by adding single shock resistance in prior art
Modifying agent carrys out the shock resistance of modified polyvinyl chloride hard product, but single anti-impact modifier pair
The shock resistance of PVC hard product improves limited.
Summary of the invention
It is an object of the invention to provide a kind of PVC and preparation method thereof, this PVC has excellent
Different shock resistance, the method step simultaneously preparing this PVC is simple.
To achieve these goals, the invention provides a kind of PVC preparation method, described method
Including by polyvinyl chloride resin, stabilizer, CPE, NBR, stearic acid, filler, paraffin, OB fluorescence
Brightening agent and PE wax extrusion molding are described PVC；
Wherein, the average degree of polymerization of described polyvinyl chloride resin is 720-850；The weight average molecular weight of described PE wax
For 2000-5000；The weight average molecular weight of described CPE is 100,000-30 ten thousand, and relative to 100 weight portions
CPE, in CPE, the content of chlorine is 25-45 weight portion；The weight average molecular weight of described NBR is 200,000-40
Ten thousand；Described stabilizer is the one in calcium stearate, castor oil acid calcium, zinc stearate and zinc ricinate
Or it is multiple；Described filler is calcium carbonate and/or titanium dioxide.
Present invention also offers a kind of PVC, this PVC is adopted and is prepared from the aforedescribed process.
By technique scheme, the present invention adds CPE and NBR in polyvinyl chloride resin, passes through CPE
With the synergism of NBR thus improve the shock resistance of PVC, so that the present invention provides
PVC can be used widely, simultaneously the present invention provide PVC preparation method use
The mode tubulation step of extrusion molding is simple, and productivity is high.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of PVC preparation method, the method include by polyvinyl chloride resin, stabilizer,
CPE, NBR, stearic acid, filler, paraffin, OB fluorescent whitening agent and PE wax extrusion molding are PVC
Tubing；Wherein, the average degree of polymerization of polyvinyl chloride resin is 720-850；The weight average molecular weight of PE wax is
2000-5000；The weight average molecular weight of CPE is 100,000-30 ten thousand, and relative to the CPE of 100 weight portions,
In CPE, the content of chlorine is 25-45 weight portion；The weight average molecular weight of NBR is 200,000-40 ten thousand；Stabilizer
For one or more in calcium stearate, castor oil acid calcium, zinc stearate and zinc ricinate；Filler
For calcium carbonate and/or titanium dioxide.
In the present invention, so that calcium carbonate, titanium dioxide as filler can have with other raw materials
There is the compatibility of excellence, consider from the size of filling agent particle, it is preferable that the particle diameter of calcium carbonate is
125-450μm；Particle diameter 0.3 μm of titanium dioxide.
In the present invention, so that PVC has more excellent shock resistance, each from raw material
Consider on the weight proportion of component, it is preferable that relative to the polyvinyl chloride resin of 100 weight portions, calcium carbonate
Consumption be 30-70 weight portion, the consumption of stabilizer be 2-8 weight portion, the consumption of CPE be 10-20
Weight portion, the consumption of NBR be 5-10 weight portion, stearic consumption be 1-3 weight portion, titanium dioxide
Consumption be 1-3 weight portion, the consumption of paraffin be that 1-3 weight portion, the consumption of OB fluorescent whitening agent are
The consumption of 0.05-0.5 weight portion and PE wax is 0.5-2 weight portion.Resist to improve PVC further
Impact property, it is highly preferred that relative to the polyvinyl chloride resin of 100 weight portions, the consumption of calcium carbonate is 40-60
Weight portion, the consumption of stabilizer be 4-6 weight portion, the consumption of CPE be 12-18 weight portion, NBR
Consumption be 6-8 weight portion, stearic consumption be 1.5-2 weight portion, the consumption of titanium dioxide be 1.5-2 weight
Measure part, the consumption of paraffin is 1.5-2 weight portion, the consumption of OB fluorescent whitening agent is 0.05-0.2 weight portion
It is 0.8-1 weight portion with the consumption of PE wax.
In the present invention, to the kind of stabilizer and content, there is no particular limitation, and stabilizer can be hard
One in fat acid calcium, castor oil acid calcium, zinc stearate and zinc ricinate, it is also possible to be calcium stearate
, castor oil acid calcium, multiple combination in zinc stearate and zinc ricinate, from cost and prepare
Consider in the shock resistance of PVC, it is preferable that stabilizer is calcium stearate and zinc stearate, and
Relative to the polyvinyl chloride resin of 100 weight portions, the consumption of calcium stearate is 2-3 weight portion, zinc stearate
Consumption is 2-3 weight portion.
In the present invention, to the kind of stabilizer and content, there is no particular limitation, and stabilizer can be hard
One in fat acid calcium, castor oil acid calcium, zinc stearate and zinc ricinate, it is also possible to be calcium stearate
, castor oil acid calcium, multiple combination in zinc stearate and zinc ricinate, from cost and prepare
Consider in the shock resistance of PVC, it is preferable that stabilizer is castor oil acid calcium and zinc ricinate,
And relative to the polyvinyl chloride resin of 100 weight portions, the consumption of castor oil acid calcium is 2-3 weight portion, Oleum Ricini
The consumption of acid zinc is 2-3 weight portion.
In the present invention, so that PVC is easy to machine-shaping, it is preferable that extrusion molding
Temperature is 150-180 DEG C.
Present invention also offers a kind of PVC, this PVC is adopted and is prepared from the aforedescribed process.
This PVC has the shock resistance of excellence.
Hereinafter will be described the present invention by embodiment.In following example, tensile strength is joined
Number is detected by the PVC tensile strength tester of Shanghai Qing Ji instrument and meter company limited；Shock resistance
The parameter PVC impact test machine testing by Shanghai Qing Ji instrument and meter company limited；Polyvinyl chloride resin is
The product that the trade mark is SG-5 of Zibo Fei He Chemical Co., Ltd., CPE is Weifang Hong Fu plastic cement company limited
The product being, NBR is the product of Yuyao City Fu Xin limited rubber company, and stearic acid is that Jinan is holy and chemical industry
The product of company limited, paraffin is the product of You Cheng source, Wuxi new material Science and Technology Ltd., OB fluorescence
Brightening agent is the product of Jinan Fu Yang Chemical Co., Ltd., and PE wax is Changzhou curry favour profit trade Co., Ltd
Product, calcium carbonate is the product of Lingshou County De Qian mineral products processing factory, and titanium dioxide is that Shijiazhuang shakes inscriptionization
The product of work company limited, calcium stearate is Gaomi City of Shandong Province friend and the product of auxiliary agent company limited, castor
The product of fiber crops calcium oleate Shanghai highland barley Industrial Co., Ltd., zinc stearate is Shanghai Shan Bo Industrial Co., Ltd.
Product, zinc ricinate is the product of Milky Way auxiliary agent company limited of Hejian City.
Embodiment 1
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 50kg, 15kg CPE, 15kg NBR,
The stearic acid of 1.5kg, the titanium dioxide of 2kg, the paraffin of 2kg, the OB fluorescent whitening agent of 0.1kg, 2.5kg
PE wax extrusion molding at 170 DEG C of calcium stearate, the zinc stearate of 2.5kg and 1kg prepare wall thickness and be
4mm and the pvc pipe A1 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 800, PE
The weight average molecular weight of wax is 3000, and the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is
300000, the particle diameter of calcium carbonate is 300 μm, and the particle diameter of titanium dioxide is 0.2 μm.A1 is carried out tension
Intensity and the detection of shock resistance, testing result is shown in Table 1.
Embodiment 2
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 50kg, 15kg CPE, 15kg NBR,
The stearic acid of 1.5kg, the titanium dioxide of 2kg, the paraffin of 2kg, the OB fluorescent whitening agent of 0.1kg, 2.5kg
PE wax extrusion molding at 170 DEG C of calcium stearate, the zinc stearate of 2.5kg and 1kg prepare wall thickness and be
4mm and the pvc pipe A2 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 720, PE
The weight average molecular weight of wax is 2000, and the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is
200000, the particle diameter of calcium carbonate is 130 μm, and the particle diameter of titanium dioxide is 0.3 μm.A2 is carried out tension
Intensity and the detection of shock resistance, testing result is shown in Table 1.
Embodiment 3
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 50kg, 15kg CPE, 15kg NBR,
The stearic acid of 1.5kg, the titanium dioxide of 2kg, the paraffin of 2kg, the OB fluorescent whitening agent of 0.1kg, 2.5kg
PE wax extrusion molding at 170 DEG C of calcium stearate, the zinc stearate of 2.5kg and 1kg prepare wall thickness and be
4mm and the pvc pipe A3 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 850, PE
The weight average molecular weight of wax is 5000, and the weight average molecular weight of CPE is 300,000, and the weight average molecular weight of NBR is
400000, the particle diameter of calcium carbonate is 450 μm, and the particle diameter of titanium dioxide is 0.05 μm.A3 is carried out tension
Intensity and the detection of shock resistance, testing result is shown in Table 1.
Embodiment 4
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 50kg, 12kg CPE, 6kg NBR,
The stearic acid of 1.5kg, the titanium dioxide of 1.5kg, the paraffin of 1.5kg, the OB fluorescent whitening agent of 0.05kg, 2kg
PE wax extrusion molding at 170 DEG C of calcium stearate, the zinc stearate of 2kg and 0.8kg prepare wall thickness and be
4mm and the pvc pipe A4 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 800, PE
The weight average molecular weight of wax is 3000, and the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is
300000, the particle diameter of calcium carbonate is 300 μm, and the particle diameter of titanium dioxide is 0.2 μm.A4 is carried out tension
Intensity and the detection of shock resistance, testing result is shown in Table 1.
Embodiment 5
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 60kg, 18kg CPE, 8kg NBR,
The stearic acid of 2kg, the titanium dioxide of 2kg, the paraffin of 2kg, the OB fluorescent whitening agent of 0.2kg, 3kg hard
It is 4mm that the extrusion molding at 170 DEG C of the PE wax of fat acid calcium, the zinc stearate of 3kg and 1kg prepares wall thickness
And the pvc pipe A5 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 800, PE wax
Weight average molecular weight be 3000, the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is 30
Ten thousand, the particle diameter of calcium carbonate is 300 μm, and the particle diameter of titanium dioxide is 0.2 μm.A5 is carried out tensile strength
With the detection of shock resistance, testing result is shown in Table 1.
Embodiment 6
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 30kg, 10kg CPE, 5kg NBR,
The stearic acid of 1kg, the titanium dioxide of 1kg, the paraffin of 1kg, the OB fluorescent whitening agent of 0.05kg, 1kg hard
The extrusion molding at 170 DEG C of the PE wax of fat acid calcium, the zinc stearate of 1.5kg and 0.5kg prepares wall thickness and is
4mm and the pvc pipe A6 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 800, PE
The weight average molecular weight of wax is 3000, and the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is
300000, the particle diameter of calcium carbonate is 300 μm, and the particle diameter of titanium dioxide is 0.2 μm.A6 is carried out tension
Intensity and the detection of shock resistance, testing result is shown in Table 1.
Embodiment 7
By the polyvinyl chloride resin of 100kg at 20 DEG C, the calcium carbonate of 70kg, 20kg CPE, 10kg NBR,
The stearic acid of 3kg, the titanium dioxide of 3kg, the paraffin of 3kg, the OB fluorescent whitening agent of 0.5kg, 4kg hard
It is 4mm that the extrusion molding at 170 DEG C of the PE wax of fat acid calcium, the zinc stearate of 4kg and 2kg prepares wall thickness
And the pvc pipe A7 that external diameter is 160mm.Wherein, the average degree of polymerization of polyvinyl chloride resin is 800, PE wax
Weight average molecular weight be 3000, the weight average molecular weight of CPE is 200,000, and the weight average molecular weight of NBR is 30
Ten thousand, the particle diameter of calcium carbonate is 300 μm, and the particle diameter of titanium dioxide is 0.2 μm.A7 is carried out tensile strength
With the detection of shock resistance, testing result is shown in Table 1.
Comparative example 1
Carry out according to the method for embodiment 1, except that, the present embodiment does not contains CPE and prepares
Pvc pipe D1.D1 carries out the detection of tensile strength and shock resistance, and testing result is shown in Table 1.
Comparative example 2
Carry out according to the method for embodiment 1, except that, the present embodiment does not contains NBR and prepares
Pvc pipe D2.D2 carries out the detection of tensile strength and shock resistance, and testing result is shown in Table 1.
Comparative example 3
Carry out according to the method for embodiment 1, except that, the present embodiment does not contains NBR and CPE
With prepared pvc pipe D3.D3 carries out the detection of tensile strength and shock resistance, and testing result is shown in
Table 1.
Table 1
As shown in Table 1, the synergism of CPE and NBR can not only improve the shock resistance of PVC
Performance, additionally it is possible to improve the tensile property of PVC, so that PVC can obtain wider
General application.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (7)
1. a PVC preparation method, it is characterised in that described method is: by polyvinyl chloride resin,
Stabilizer, CPE (chlorinated polyethylene), NBR (nitrile rubber), stearic acid, filler, paraffin,
OB fluorescent whitening agent and PE wax extrusion molding are described PVC；
Wherein, the average degree of polymerization of described polyvinyl chloride resin is 720-850；The weight average molecular weight of described PE wax
For 2000-5000；The weight average molecular weight of described CPE is 100,000-30 ten thousand, and relative to 100 weight portions
CPE, in CPE, the content of chlorine is 25-45 weight portion；The weight average molecular weight of described NBR is 200,000-40
Ten thousand；Described stabilizer is the one in calcium stearate, castor oil acid calcium, zinc stearate and zinc ricinate
Or it is multiple；Described filler is calcium carbonate and/or titanium dioxide；Relative to the polyvinyl chloride resin of 100 weight portions,
The consumption of described calcium carbonate be 30-70 weight portion, the consumption of described stabilizer be 2-8 weight portion, described
The consumption of CPE be 10-20 weight portion, the consumption of described NBR be 5-10 weight portion, described stearic
Consumption be 1-3 weight portion, the consumption of described titanium dioxide be 1-3 weight portion, the consumption of described paraffin be 1-3
Weight portion, the consumption of described OB fluorescent whitening agent are that the consumption of 0.05-0.5 weight portion and described PE wax is
0.5-2 weight portion.
Method the most according to claim 1, wherein, the particle diameter of described calcium carbonate is 125-450
μm；Particle diameter≤0.3 μm of described titanium dioxide.
Method the most according to claim 2, wherein, relative to the polyvinyl chloride resin of 100 weight portions,
The consumption of described calcium carbonate be 40-60 weight portion, the consumption of described stabilizer be 4-6 weight portion, described
The consumption of CPE be 12-18 weight portion, the consumption of described NBR be 6-8 weight portion, described stearic acid
Consumption be 1.5-2 weight portion, the consumption of described titanium dioxide be 1.5-2 weight portion, the consumption of described paraffin
Consumption for 1.5-2 weight portion, described OB fluorescent whitening agent is 0.05-0.2 weight portion and described PE wax
Consumption be 0.8-1 weight portion.
4. according to the method described in any one in claim 1-3, wherein, described stabilizer is hard
Fat acid calcium and zinc stearate, and relative to the polyvinyl chloride resin of 100 weight portions, the consumption of described calcium stearate
Consumption for 2-3 weight portion, described zinc stearate is 2-3 weight portion.
5. according to the method described in any one in claim 1-3, wherein, described stabilizer is castor
Fiber crops calcium oleate and zinc ricinate, and relative to the polyvinyl chloride resin of 100 weight portions, described castor oil acid calcium
Consumption be 2-3 weight portion, the consumption of described zinc ricinate be 2-3 weight portion.
6. according to the method described in any one in claim 1-3, wherein, described extrusion molding
Temperature is 150-180 DEG C.
7. a PVC, it is characterised in that described PVC uses in claim 1-6
Method described in any one is prepared from.
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| CN104387707A (en) * | 2014-12-16 | 2015-03-04 | 钟再华 | Ultra-low-temperature-resistant high-toughness flame-retardant fire hose lining rubber tube and preparation method thereof |
| CN106046623A (en) * | 2016-07-29 | 2016-10-26 | 大禹节水（天津）有限公司 | Smooth-inner-wall-type PVC pipe |
| CN106589703A (en) * | 2016-12-20 | 2017-04-26 | 天津中财型材有限责任公司 | Porcelain white highlight PVC tube and preparation method thereof |
| CN107964185A (en) * | 2017-11-22 | 2018-04-27 | 杭州富阳鼎创科技有限公司 | PVC plastic pipe and preparation method thereof |
| CN108250626B (en) * | 2018-01-30 | 2020-04-10 | 杭州中能管业有限公司 | Biaxial stretching self-reinforced PVC (polyvinyl chloride) pipe and manufacturing method thereof |
| CN108546373B (en) * | 2018-04-29 | 2021-05-14 | 河北杰帝奇体育用品有限公司 | High-performance modified polyvinyl chloride and preparation method thereof |
| CN112143065B (en) * | 2019-06-28 | 2022-04-26 | 合肥杰事杰新材料股份有限公司 | Toughening agent, PVC (polyvinyl chloride) pipe material and preparation method thereof |
| CN110425345B (en) * | 2019-08-14 | 2021-01-15 | 南塑建材塑胶制品（深圳）有限公司 | High-strength PVC (polyvinyl chloride) pipe and processing technology thereof |
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| US20080194736A1 (en) * | 2007-02-13 | 2008-08-14 | Minqiu Lu | PVC nanocomposite manufacturing technology and applications |
| CN100506904C (en) * | 2007-06-22 | 2009-07-01 | 上海洋生管业有限公司 | Combination for producing large-calibre reinforced polypropylene stiffened pipe and production technique thereof |
| CN101353467A (en) * | 2008-09-17 | 2009-01-28 | 青岛高科塑胶研究开发中心 | Polychloroethylene acrylonitrile butadiene composite pipes and preparation thereof |
| CN102977523A (en) * | 2012-12-27 | 2013-03-20 | 青岛鑫万通塑业发展有限公司 | High-performance polyvinyl chloride pipe |
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Address after: Zhi Zhen Wuhu County in Anhui province Wuhu city Wuhu Bay 241000 Machinery Industrial Park outside ring road No. 269 building 01-07 Patentee after: Anhui Yuanfeng Pipeline Technology Co., Ltd. Address before: Southern Anhui 241000 city of Wuhu province Wuhu County Economic Development Zone, Wuhu Patentee before: Wuhu Zhong Yuan Saite Pipe Co., Ltd. |
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