CN105175961A - Chlorinated polyvinyl chloride modified material preparation method - Google Patents
Chlorinated polyvinyl chloride modified material preparation method Download PDFInfo
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- CN105175961A CN105175961A CN201510356956.XA CN201510356956A CN105175961A CN 105175961 A CN105175961 A CN 105175961A CN 201510356956 A CN201510356956 A CN 201510356956A CN 105175961 A CN105175961 A CN 105175961A
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- polyvinyl chloride
- chlorinated polyvinyl
- parts
- pigment
- stabilizer
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- 239000004801 Chlorinated PVC Substances 0.000 title claims abstract description 60
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title claims abstract description 60
- 239000000463 material Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 11
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 50
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 25
- -1 polyethylene Polymers 0.000 claims description 25
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 20
- 239000011575 calcium Substances 0.000 claims description 20
- 229910052791 calcium Inorganic materials 0.000 claims description 20
- 239000011701 zinc Substances 0.000 claims description 20
- 229910052725 zinc Inorganic materials 0.000 claims description 20
- 239000006084 composite stabilizer Substances 0.000 claims description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 239000003017 thermal stabilizer Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- CSHCPECZJIEGJF-UHFFFAOYSA-N methyltin Chemical compound [Sn]C CSHCPECZJIEGJF-UHFFFAOYSA-N 0.000 claims description 12
- 125000003396 thiol group Chemical class [H]S* 0.000 claims description 12
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 9
- 239000008116 calcium stearate Substances 0.000 claims description 9
- 235000013539 calcium stearate Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 239000012760 heat stabilizer Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract 2
- 239000012745 toughening agent Substances 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 239000007822 coupling agent Substances 0.000 description 13
- 229920003023 plastic Polymers 0.000 description 13
- 239000004033 plastic Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 230000001976 improved effect Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000012752 auxiliary agent Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 241001247482 Amsonia Species 0.000 description 2
- 239000004605 External Lubricant Substances 0.000 description 2
- 239000004610 Internal Lubricant Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention discloses a chlorinated polyvinyl chloride modified material preparation method, wherein the chlorinated polyvinyl chloride modified material comprises, by weight, 100 parts of a chlorinated polyvinyl chloride resin, 1-5 parts of a composite lubricant, 5-10 parts of a composite heat stabilizer, 5-15 parts of a filler, 5-20 parts of a toughening agent, 3-10 parts of a processing aid, and 0.5-3 parts of a pigment. The preparation method comprises: weighing various components according to the formula for spare; pouring the chlorinated polyvinyl chloride resin into a high speed mixer, mixing, pouring the composite heat stabilizer, finally pouring the composite lubricant, the filler, the toughening agent, the processing aid and the pigment, mixing until achieving a temperature of 105-120 DEG C, discharging the material, and cooling; and carrying out melt extrusion and heat cutting on the cooled mixing material so as to obtain the chlorinated polyvinyl chloride modified material. According to the present invention, the problems of high melt viscosity and difficult molding processing are overcome through the chlorinated polyvinyl chloride modified material, and the obtained product has characteristics of high impact strength, good surface finish, and high thermal stability.
Description
The application is application number is 201310071388.X, and the applying date is on March 6th, 2013, and invention and created name is the divisional application of the application for a patent for invention of " chlorinated polyvinyl chloride is material modified and preparation method thereof ".
Technical field
The present invention relates to a kind of preparation method of polymer composite, be specifically related to the preparation method that a kind of chlorinated polyvinyl chloride is material modified.
Background technology
Chlorinated polyvinyl chloride (CPVC) is through chlorination modified obtained by polyvinyl chloride (PVC).After chlorination modified, the cl content of material has brought up to 63% ~ 68% by 56.7%, thus make that the molecular linkage polarity of material increases, Intermolecular Forces strengthens, chemical stability increases, and the mechanical property of material, resistance to chemical corrosion and flame retardant properties are all greatly improved.And chlorination modified after, vicat softening temperature has brought up to 90 DEG C ~ 125 DEG C by 72 DEG C ~ 82 DEG C, makes the thermotolerance of material also improve 20% ~ 40%.Therefore chlorinated polyvinyl chloride has excellent chemical resistance, flame retardant resistance, mechanical property and thermotolerance, and can be widely used in chemical pipeline, water supply line and pipe fitting and produce, be a kind of model engineering plastic had a extensive future.
But, along with the raising of cl content, while some performances are improved, also the deficiency of partial properties is shown: (1) is because chlorinated polyvinyl chloride material melt viscosity is large, machine-shaping is difficult, cause the surface smoothness of its goods poor, and Some Mechanical Properties (as resistance to impact shock) is lower.(2) although the thermotolerance of material has had raising, thermostability is not high.
In the process preparing chlorinated polyvinyl chloride material, usually all to add some auxiliary agents to improve its performance, mainly comprise toughner, processing aid, lubricant, stablizer (mainly thermo-stabilizer), weighting agent etc.
Although shock resistance auxiliary agent (as ACR, MBS, CPE etc.) is the principal element affecting material resistance to impact shock, but, for chlorinated polyvinyl chloride material, because its melt viscosity is comparatively large, molding processibility is poor, makes lubricating system also particularly important for resistance to impact shock.On the other hand, the too small material that also can make of melt viscosity is not easy to plasticizing, and then also can affect the resistance to impact shock of goods.Therefore, good lubricating system is for the mechanical property of chlorinated polyvinyl chloride, and particularly resistance to impact shock is particularly important, and also to have greatly improved effect for the surface smoothness of goods.
Because chlorinated polyvinyl chloride material is in molding process, melt one side its inside in flow process itself also exists internal friction, also produce external friction with machine barrel internal surface and screw surface on the other hand, therefore need internal lubricant and external lubricant to act on, and consumption is very very crucial simultaneously.Chinese patent literature CN102532763A, CN102532762A, CN102134360A, CN102040785A, CN101880429A and CN102190841A etc. all disclose the conventional lubricant of chlorinated polyvinyl chloride material.Adopt as Chinese patent literature CN102040785A discloses the mechanical property that internal lubricant and external lubricant improve chlorinated polyvinyl chloride material, but its shock strength only brings up to 1.6KJ/m
2, tensile strength has also just brought up to 21.4MPa.Disclosed in same Chinese patent literature CN102190841A, the shock strength of chlorinated polyvinyl chloride material is maximum also only has 9.2KJ/m
2.And chlorinated polyvinyl chloride material 14KJ/m only disclosed in the highest Chinese patent literature CN101880429A of shock strength
2.
Therefore to improve effect for the shock resistance of chlorinated polyvinyl chloride material also undesirable for above-mentioned lubricating system.
The effect of thermo-stabilizer is the thermostability improving chlorinated polyvinyl chloride material.The thermo-stabilizer of usual employing comprises lead salts, rare earth class, organic tin, fatty acid salt, calcium/zinc complex class etc.Composite thermal stabilizer can be adopted as Chinese patent literature CN102532763A, CN102532762A, CN102134360A, CN102040785A and CN101880429A etc. all disclose.The wherein embodiment 1 of Chinese patent literature CN102532763A, 2, 4 specifically disclose calcium/zinc composite stabilizer and organotin stabilizer especially according to 3: 1, 2: 1, the weight ratio composition composite thermal stabilizer of 1: 1, although calcium/zinc composite stabilizer has certain heat stabilization for chlorinated polyvinyl chloride material, but thermostable effect is not very strong, therefore this based on calcium/zinc composite stabilizer, organotin stabilizer is that auxiliary composite thermal stabilizer is unsatisfactory for the improvement of the thermostability of chlorinated polyvinyl chloride material, its 200 DEG C of heat-stable times are >=60min.
Summary of the invention
The object of the invention is to solve the problem, there is provided a kind of while there is excellent chemical resistance, flame retardant resistance, mechanical property and thermotolerance, also there is the preparation method that machine-shaping is good, goods are excellent in cushion effect, the chlorinated polyvinyl chloride of Heat stability is good is material modified.
The technical scheme realizing above-mentioned purpose of the present invention is: a kind of chlorinated polyvinyl chloride is material modified, be made up of the component of following weight parts: chlorinated polyvinyl chloride resin 100 parts, compounded lubricant 1 ~ 5 part, composite thermal stabilizer 5 ~ 10 parts, weighting agent 5 ~ 15 parts, toughner 5 ~ 20 parts, processing aid 3 ~ 10 parts, pigment 0.5 ~ 3 part.
Described compounded lubricant by calcium stearate, polyethylene wax and ultra-high molecular weight polysiloxane according to 1: (1 ~ 2): the weight ratio of (1 ~ 3) forms.Wherein polyethylene wax adopt to be molecular weight be 1000 ~ 5000 low molecular weight polyethylene wax; The GM-100 type silicone plastics additive that the preferred Bluestar (Chengdu) New Material Co., Ltd. of ultra-high molecular weight polysiloxane produces.
Described composite thermal stabilizer by thiol methyl tin and calcium/zinc composite stabilizer according to 4: 1 ~ 10: 1 weight ratio form.Also namely thiol methyl tin is main thermo-stabilizer, and calcium/zinc composite stabilizer is auxiliary heat stabilizer.Effectively can play the thiol methyl tin heat stabilization higher to chlorinated polyvinyl chloride material like this, the auxiliary heat that can play again calcium/zinc composite stabilizer is stablized and lubrication.The wherein nontoxic calcium/zinc composite stabilizer of CZW-70 type of calcium/zinc composite stabilizer preferred Nanjing Wei Gede plastics Science and Technology Ltd. production.
Described weighting agent is active nano level calcium carbonate, and this active nano level calcium carbonate is the nanometer grade calcium carbonate crossed through monoalkoxytitanates coupling agent treatment; The median size of nanometer grade calcium carbonate is 500nm ~ 1500nm; The weight ratio of monoalkoxytitanates coupling agent and nanometer grade calcium carbonate is 0.5: 100 ~ 3: 100.The wherein JL-101 type titanate coupling agent of monoalkoxytitanates coupling agent preferred Changzhou Jiu Long auxiliary agent company limited production.
Described toughner is MBS (MBS).
Described processing aid is acrylic acid esters co-polymer (ACR).
Described pigment is any pigment being suitable for chlorinated polyvinyl chloride, preferred titanium dioxide.
The preparation method that above-mentioned chlorinated polyvinyl chloride is material modified, has following steps: 1. take chlorinated polyvinyl chloride resin, compounded lubricant, composite thermal stabilizer, weighting agent, toughner, processing aid and pigment according to formula stand-by.2. first chlorinated polyvinyl chloride resin is poured into and be mixed to temperature in high-speed mixer (rotating speed is 800 revs/min ~ 1000 revs/min) and reach 75 DEG C ~ 85 DEG C, then composite thermal stabilizer is poured in high-speed mixer and continue to be mixed to temperature and reach 88 DEG C ~ 92 DEG C, then again compounded lubricant, weighting agent, toughner, processing aid and pigment are poured in high-speed mixer and continue to be mixed to temperature and reach 105 DEG C ~ 120 DEG C, discharging, is sent to mixture in cooling and stirring device and is cooled to 30 DEG C ~ 40 DEG C.3. cooled mixture is sent in twin screw extruder and melt extrudes, material modified by adopting the fervent method of die head to obtain chlorinated polyvinyl chloride.
Described weighting agent is active nano level calcium carbonate, the preparation process of this active nano level calcium carbonate is: first poured into by nanometer grade calcium carbonate in high-speed mixer machine (rotating speed is 800 revs/min ~ 1000 revs/min), be uniformly mixed 3min ~ 5min, after reaching 100 DEG C ~ 110 DEG C to temperature, evenly pour monoalkoxytitanates coupling agent into, continue be uniformly mixed 15min ~ 20min and get final product.The median size of nanometer grade calcium carbonate is 500nm ~ 1500nm; The weight ratio of monoalkoxytitanates coupling agent and nanometer grade calcium carbonate is 0.5: 100 ~ 3: 100.
Above-mentioned steps 3. in, the temperature in each district of twin screw extruder is: T
1=100 DEG C ~ 130 DEG C, T
2=150 DEG C ~ 160 DEG C, T
3=160 DEG C ~ 180 DEG C, T
4=180 DEG C ~ 200 DEG C, T
5=190 DEG C ~ 210 DEG C, T
mould=180 DEG C ~ 200 DEG C.
The positively effect that the present invention has: (1) chlorinated polyvinyl chloride of the present invention material modified employing ultra-high molecular weight polysiloxane and calcium stearate and polyethylene wax form compounded lubricant, and control in (1 ~ 3) by its weight ratio: 1: (1 ~ 2).Because ultra-high molecular weight polysiloxane has interior lubrication and outer lubrication simultaneously, significantly improve the harmony of lubricating system inside and outside material, overcome the problem that the material modified melt viscosity of chlorinated polyvinyl chloride is large, forming process is difficult.The goods resistance to impact shock finally obtained is improved greatly, and (resistance to impact shock is greater than 20kJ/m
2), and surface smoothness is improved greatly.(2) the material modified employing calcium/zinc composite stabilizer of chlorinated polyvinyl chloride of the present invention assists thiol methyl tin to form composite thermal stabilizer, the defect of thiol methyl tin oilness deficiency is made up by the lubrication stabilization that calcium/zinc composite stabilizer is good, make material while having excellent thermotolerance (vicat softening temperature is at about 110 DEG C), also there is higher thermostability (200 DEG C of heat-stable times are more than 70min).(3) weighting agent add the mechanical property that usually can reduce material, and regular grade calcium carbonate due to particle diameter larger, it adds the increase that also can cause melt viscosity, therefore, the present invention adopts the nanometer grade calcium carbonate crossed through monoalkoxytitanates coupling agent treatment as weighting agent, because nanometer grade calcium carbonate particle diameter is less, in use easily there is agglomeration, adopt monoalkoxytitanates coupling agent treatment nanometer grade calcium carbonate, nanometer grade calcium carbonate agglomeration can be prevented, monoalkoxytitanates coupling agent has good snappiness simultaneously, therefore ensure that the mechanical property of material, and effectively reduce the phenomenon of melt viscosity increase.
Embodiment
(embodiment 1)
The material modified component by following weight of chlorinated polyvinyl chloride of the present embodiment is made:
The injection grade chlorinated polyvinyl chloride resin of 100kg;
The ultra-high molecular weight polysiloxane of the calcium stearate of 1kg, the polyethylene wax of 1.5kg and 1.7kg; Wherein polyethylene wax adopt to be molecular weight be 2000 low molecular weight polyethylene wax; What ultra-high molecular weight polysiloxane adopted is the GM-100 type silicone plastics additive that Bluestar (Chengdu) New Material Co., Ltd. produces;
The thiol methyl tin of 7kg and the calcium/zinc composite stabilizer of 1.2kg; What wherein calcium/zinc composite stabilizer adopted is the nontoxic calcium/zinc composite stabilizer of CZW-70 type that Nanjing Wei Gede plastics Science and Technology Ltd. produces;
The active nano level calcium carbonate of 7kg;
The MBS (MBS) of 12kg;
The acrylic acid esters co-polymer (ACR) of 6kg;
The titanium dioxide of 0.7kg.
The material modified preparation method of above-mentioned chlorinated polyvinyl chloride has following steps:
1. injection grade chlorinated polyvinyl chloride resin, calcium stearate, polyethylene wax, ultra-high molecular weight polysiloxane, thiol methyl tin, calcium/zinc composite stabilizer, active nano level calcium carbonate, MBS, ACR and titanium dioxide is taken according to formula, stand-by.
Wherein the preparation process of active nano level calcium carbonate is as follows: be that to pour rotating speed into be in the high-speed mixer of 900 revs/min for the nanometer grade calcium carbonate of 500nm ~ 1500nm by 100kg median size, be uniformly mixed 4min, after reaching 105 DEG C to temperature, pour the monoalkoxytitanates coupling agent of the low melting point of 1.5kg into, continue after adding be uniformly mixed 18min and get final product.What monoalkoxytitanates coupling agent adopted is the JL-101 type titanate coupling agent that Changzhou Jiu Long auxiliary agent company limited produces.
2. first injection grade chlorinated polyvinyl chloride resin being poured into rotating speed is that to be mixed to temperature in the high-speed mixer of 900 revs/min be 80 DEG C, then thiol methyl tin and calcium/zinc composite stabilizer being poured in high-speed mixer and being mixed to temperature is 90 DEG C, then again calcium stearate, polyethylene wax, ultra-high molecular weight polysiloxane, active nano level calcium carbonate, MBS, ACR and titanium dioxide are poured in high-speed mixer into continue to be mixed to temperature be 115 DEG C, discharging, is sent to mixture in cooling and stirring device and is under agitation cooled to 40 DEG C.
3. cooled mixture is sent in twin screw extruder and melt extrudes, material modified by adopting the fervent method of die head to obtain chlorinated polyvinyl chloride.
The temperature in each district of twin screw extruder is: T
1=100 DEG C ~ 130 DEG C, T
2=150 DEG C ~ 160 DEG C, T
3=160 DEG C ~ 180 DEG C, T
4=180 DEG C ~ 200 DEG C, T
5=190 DEG C ~ 210 DEG C, T
mould=190 DEG C.
(embodiment 2 ~ embodiment 4)
Each embodiment is substantially the same manner as Example 1, and difference is in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Injection grade chlorinated polyvinyl chloride resin | 100kg | 100kg | 100kg | 100kg |
| Calcium stearate | 1kg | 1kg | 1kg | 1kg |
| Polyethylene wax | 1.5kg | 1.5kg | 1.3kg | 1.5kg |
| Ultra-high molecular weight polysiloxane | 1.7kg | 1.7kg | 1.7kg | 1.7kg |
| Thiol methyl tin | 7kg | 7kg | 6kg | 7kg |
| Calcium/zinc composite stabilizer | 1.2kg | 1.2kg | 1kg | 1.2kg |
| Active nano level calcium carbonate | 7kg | 10kg | 8kg | 6kg |
| MBS | 12kg | 10kg | 11kg | 9kg |
| ACR | 6kg | 8kg | 8kg | 6kg |
| Titanium dioxide | 0.7kg | 0.7kg | 0.7kg | 0.7kg |
(application examples)
Chlorinated polyvinyl chloride embodiment 1 ~ embodiment 4 obtained respectively is material modified makes plastic standard sample, and tests their mechanical property and thermal property, the results are shown in Table 2.
Table 2
| Test performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength/MPa | 58.3 | 58.1 | 59.6 | 60.2 |
| Elongation at break/% | 34.6 | 37.5 | 36.4 | 38.7 |
| Flexural strength/MPa | 110 | 109 | 108 | 109 |
| Modulus in flexure/MPa | 3011 | 2989 | 2960 | 3012 |
| Resistance to impact shock/KJm -2 | 23.2 | 21.5 | 25.6 | 22.3 |
| Vicat softening temperature/DEG C | 108.5 | 109.1 | 110.3 | 112.3 |
| 200 DEG C of heat-stable time/min | 71.6 | 72.1 | 72.5 | 72.2 |
As shown in Table 2, the material modified plastic standard sample made of the chlorinated polyvinyl chloride of each embodiment not only has excellent mechanical property and thermotolerance, and excellent in cushion effect (notched Izod impact hit intensity is greater than 20kJ/m
2), thermostability high (200 DEG C of heat-stable times are more than 70min).
(comparative example 1 ~ comparative example 3)
Each comparative example is substantially the same manner as Example 1, and difference is in table 3.
Table 3
| Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Injection grade chlorinated polyvinyl chloride resin | 100kg | 100kg | 100kg | 100kg |
| Calcium stearate | 1kg | 1.5kg | 1kg | 1kg |
| Polyethylene wax | 1.5kg | 2kg | 1.5kg | 1.5kg |
| Ultra-high molecular weight polysiloxane | 1.7kg | - | 1.7kg | 1.7kg |
| Thiol methyl tin | 7kg | 7kg | 4kg | 7kg |
| Calcium/zinc composite stabilizer | 1.2kg | 1.2kg | 4kg | 1.2kg |
| Active nano level calcium carbonate | 7kg | 7kg | 7kg | - |
| Nanometer grade calcium carbonate | - | - | - | 7kg |
| MBS | 12kg | 12kg | 12kg | 12kg |
| ACR | 6kg | 6kg | 6kg | 6kg |
| Titanium dioxide | 0.7kg | 0.7kg | 0.7kg | 0.7kg |
(contrast application examples)
Chlorinated polyvinyl chloride comparative example 1 ~ comparative example 3 obtained respectively is material modified makes plastic standard sample, and tests their mechanical property and thermal property, the results are shown in Table 4.
Table 4
| Test performance | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Tensile strength/MPa | 58.3 | 55.5 | 57.3 | 50.8 |
| Elongation at break/% | 34.6 | 21.5 | 25.5 | 15.3 |
| Flexural strength/MPa | 110 | 98.2 | 100.5 | 90.2 |
| Modulus in flexure/MPa | 3011 | 2850 | 2985 | 2800 |
| Resistance to impact shock/KJm -2 | 23.2 | 13.7 | 21.5 | 16.6 |
| Vicat softening temperature/DEG C | 108.5 | 105 | 106 | 105 |
| 200 DEG C of heat-stable time/min | 71.6 | 69.1 | 62.6 | 69.3 |
As shown in Table 4:
(1) calcium stearate and polyethylene wax is only adopted as lubricant by comparative example 1() compared with the material modified plastic standard sample made of chlorinated polyvinyl chloride that obtains of the material modified plastic standard sample made of chlorinated polyvinyl chloride and the embodiment 1 that obtain: thermostability is more or less the same, but mechanical property, particularly resistance to impact shock obviously reduce.
(2) calcium/zinc composite stabilizer is adopted with thiol methyl tin balanced mix as composite thermal stabilizer by comparative example 2() compared with the material modified plastic standard sample made of chlorinated polyvinyl chloride that obtains of the material modified plastic standard sample made of chlorinated polyvinyl chloride and the embodiment 1 that obtain: mechanical property is more or less the same, but thermostability obviously reduces.
(3) adopted not through the nanometer grade calcium carbonate of monoalkoxytitanates coupling agent treatment by comparative example 3() compared with the material modified plastic standard sample made of chlorinated polyvinyl chloride that obtains of the material modified plastic standard sample made of chlorinated polyvinyl chloride and the embodiment 1 that obtain: thermostability is more or less the same, but multinomial mechanical property obviously reduces.
Claims (1)
1. the preparation method that chlorinated polyvinyl chloride is material modified, is characterized in that having following steps:
1. chlorinated polyvinyl chloride resin, compounded lubricant, composite thermal stabilizer, weighting agent, toughner, processing aid and pigment is taken according to following formula stand-by: chlorinated polyvinyl chloride resin 100 parts, compounded lubricant 1 ~ 5 part, composite thermal stabilizer 5 ~ 10 parts, weighting agent 5 ~ 15 parts, toughner 5 ~ 20 parts, processing aid 3 ~ 10 parts, pigment 0.5 ~ 3 part;
Described compounded lubricant by calcium stearate, polyethylene wax and ultra-high molecular weight polysiloxane according to 1: 1 ~ 2: 1 ~ 3 weight ratio form; Described composite thermal stabilizer by thiol methyl tin and calcium/zinc composite stabilizer according to 4: 1 ~ 10: 1 weight ratio form; Described weighting agent is active nano level calcium carbonate; Described pigment is titanium dioxide;
2. first chlorinated polyvinyl chloride resin is poured in high-speed mixer and be mixed to temperature and reach 75 DEG C ~ 85 DEG C, then composite thermal stabilizer is poured in high-speed mixer and continue to be mixed to temperature and reach 88 DEG C ~ 92 DEG C, then again compounded lubricant, weighting agent, toughner, processing aid and pigment are poured in high-speed mixer and continue mixing, 105 DEG C ~ 120 DEG C are reached to temperature, discharging, cooling;
3. cooled mixture is sent in twin screw extruder and melt extrudes, material modified by adopting the fervent method of die head to obtain chlorinated polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356956.XA CN105175961B (en) | 2013-01-25 | 2013-03-06 | A kind of material modified preparation method of chliorinated polyvinyl chloride |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030714 | 2013-01-25 | ||
| CN2013100307142 | 2013-01-25 | ||
| CN201310071388.XA CN103102632B (en) | 2013-01-25 | 2013-03-06 | Chlorinated polyvinyl chloride is material modified and preparation method thereof |
| CN201510356956.XA CN105175961B (en) | 2013-01-25 | 2013-03-06 | A kind of material modified preparation method of chliorinated polyvinyl chloride |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310071388.XA Division CN103102632B (en) | 2013-01-25 | 2013-03-06 | Chlorinated polyvinyl chloride is material modified and preparation method thereof |
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| CN201510357015.8A Expired - Fee Related CN105175964B (en) | 2013-01-25 | 2013-03-06 | The material modified preparation method of chliorinated polyvinyl chloride |
| CN201510356957.4A Expired - Fee Related CN105175962B (en) | 2013-01-25 | 2013-03-06 | A kind of chliorinated polyvinyl chloride is material modified |
| CN201510356960.6A Expired - Fee Related CN105175963B (en) | 2013-01-25 | 2013-03-06 | Chliorinated polyvinyl chloride is material modified |
| CN201310071388.XA Expired - Fee Related CN103102632B (en) | 2013-01-25 | 2013-03-06 | Chlorinated polyvinyl chloride is material modified and preparation method thereof |
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| CN201510357015.8A Expired - Fee Related CN105175964B (en) | 2013-01-25 | 2013-03-06 | The material modified preparation method of chliorinated polyvinyl chloride |
| CN201510356957.4A Expired - Fee Related CN105175962B (en) | 2013-01-25 | 2013-03-06 | A kind of chliorinated polyvinyl chloride is material modified |
| CN201510356960.6A Expired - Fee Related CN105175963B (en) | 2013-01-25 | 2013-03-06 | Chliorinated polyvinyl chloride is material modified |
| CN201310071388.XA Expired - Fee Related CN103102632B (en) | 2013-01-25 | 2013-03-06 | Chlorinated polyvinyl chloride is material modified and preparation method thereof |
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| CN105647083A (en) * | 2016-04-01 | 2016-06-08 | 成都脉通管业有限公司 | Enhanced electric power information cable conduit and preparation method thereof |
| CN109401149A (en) * | 2018-09-19 | 2019-03-01 | 山东霞光集团有限公司 | A kind of modified PVC prepares the formula and preparation method of wood plastic building mould |
| CN109733036A (en) * | 2018-12-29 | 2019-05-10 | 山东新升实业发展有限责任公司 | It is a kind of to build with service life drainpipe and preparation method thereof |
| CN110776698A (en) * | 2019-12-04 | 2020-02-11 | 芜湖航天特种电缆厂股份有限公司 | High-strength cable sheath and preparation method thereof |
| CN115011051A (en) * | 2022-06-10 | 2022-09-06 | 辽宁天源大奔科技集团有限公司 | Aramid pulp enhanced PVC-C mine casing and preparation method thereof |
| CN115304877A (en) * | 2022-09-08 | 2022-11-08 | 青岛海纳新材料有限公司 | CPVC material with low plasticizing temperature and high melt strength for battery cover plate and preparation method thereof |
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| CN104774412A (en) * | 2015-04-10 | 2015-07-15 | 芜湖中源赛特管业有限公司 | Chlorinated polyvinyl chloride pipe material composition as well as preparation method and application of chlorinated polyvinyl chloride pipe material |
| CN105968805B (en) * | 2016-05-17 | 2018-10-19 | 厦门集优新材料有限公司 | A kind of modified material and preparation method thereof instead of metal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647083A (en) * | 2016-04-01 | 2016-06-08 | 成都脉通管业有限公司 | Enhanced electric power information cable conduit and preparation method thereof |
| CN109401149A (en) * | 2018-09-19 | 2019-03-01 | 山东霞光集团有限公司 | A kind of modified PVC prepares the formula and preparation method of wood plastic building mould |
| CN109733036A (en) * | 2018-12-29 | 2019-05-10 | 山东新升实业发展有限责任公司 | It is a kind of to build with service life drainpipe and preparation method thereof |
| CN110776698A (en) * | 2019-12-04 | 2020-02-11 | 芜湖航天特种电缆厂股份有限公司 | High-strength cable sheath and preparation method thereof |
| CN115011051A (en) * | 2022-06-10 | 2022-09-06 | 辽宁天源大奔科技集团有限公司 | Aramid pulp enhanced PVC-C mine casing and preparation method thereof |
| CN115304877A (en) * | 2022-09-08 | 2022-11-08 | 青岛海纳新材料有限公司 | CPVC material with low plasticizing temperature and high melt strength for battery cover plate and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105175962B (en) | 2017-09-29 |
| CN105175961B (en) | 2017-09-29 |
| CN105175964B (en) | 2017-09-29 |
| CN105175963A (en) | 2015-12-23 |
| CN105175962A (en) | 2015-12-23 |
| CN103102632A (en) | 2013-05-15 |
| CN105175964A (en) | 2015-12-23 |
| CN105175963B (en) | 2017-11-21 |
| CN103102632B (en) | 2015-07-29 |
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