CN105199255A - Antistatic PVC foamed plastic and preparing method thereof - Google Patents
Antistatic PVC foamed plastic and preparing method thereof Download PDFInfo
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- CN105199255A CN105199255A CN201410257506.0A CN201410257506A CN105199255A CN 105199255 A CN105199255 A CN 105199255A CN 201410257506 A CN201410257506 A CN 201410257506A CN 105199255 A CN105199255 A CN 105199255A
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Abstract
The invention discloses antistatic PVC foamed plastic and a preparing method thereof, and belongs to the technical field of polymer processing modifying. The foamed plastic is prepared from, by weight, 100 parts of PVC, 1.5 parts to 3.0 parts of organic tin stabilizers, 20 parts to 30 parts of plasticizers, 4 parts to 6 parts of foaming agents, 1.0 part to 1.5 parts of assistant foaming agents, 8 parts to 10 parts of acrylate copolymers, 1.2 parts to 1.5 parts of organic peroxide cross-linking agents, 4 parts to 6 parts of assistant cross-linking agents, 0.5 part to 1.0 part of composite lubricants and 15 parts to 20 parts of antistatic agents. According to the foamed plastic, antistatic performance is evenly distributed and durable, mass is small, resilience force is large, and flame resistance is good; in addition, as the foamed plastic is light in color, colors can be easily added to produce colorful products. The preparing method is simple, convenient and practicable, the quality of the obtained PVC foamed plastic is easy to control, and the foaming effect, resilience performance and the antistatic performance are evenly distributed.
Description
Technical field
A kind of antistatic PVC porous plastics and preparation method thereof, belongs to polymer processing technical field of modification.
Background technology
Article usually use porous plastics to carry out buffer protection, as expanded plastics such as polystyrene, polyethylene, urethane in transportation.And unicircuit, communication equipment etc. being vulnerable to the electronic product of electrostatic influence, wrapping material need anti-static function.Polyvinyl chloride is relative to materials such as polystyrene, polyethylene, urethane, and not only low price own, and excellent flame retardancy, so use the antistatic foam materials of Production of PVC to be suitable for very much electronic product packaging, transport, to store.
The anti-static function of material usually adds antistatic auxiliary and conductive filler material obtains.Static inhibitor is generally based on the static inhibitor of quaternary ammonium salt and phosphoric acid ester, and this method can improve the antistatic property of goods in a short time; The conductive filler material that conductive filler material mainly adds is carbon black, carbon black add the foam structure that can change porous plastics, conductive path is formed in foam base plate, thus make goods have antistatic property steady in a long-term, the feature of this method is the foam materials color of producing is grey black, affect attractive in appearance, flame retardant properties also declines simultaneously.
Chinese patent CN103242606A discloses a kind of preparation method of antistatic PVC foam floor, and its static inhibitor adopted is Shawinigan black, and this makes to produce colored article; Chinese patent CN103289232A discloses a kind of Antistatic PVC sole foam material, uses small molecules non-ionic antistatic agent in this patent, and in use with static inhibitor precipitation, performance declines gradually easily to cause goods; Chinese patent CN103396623A discloses a kind of PVC antistatic floor, and these goods add mass filler and use small molecules static inhibitor; Disclosed in Chinese patent CN103362273A, Antistatic PVC composite shingle have employed MULTILAYER COMPOSITE technique.Above patent all can not meet electronic product wrapping material light weight, the endurable requirement of static resistance very well.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of antistatic PVC porous plastics and preparation method thereof is provided, this porous plastics antistatic property is evenly distributed, and antistatic property is lasting, quality is slim and graceful, screen resilience is high, flame retardant properties is better, and because this porous plastics color is more shallow, be conducive to adding pigment production colored article.
Technical scheme of the present invention is, a kind of antistatic PVC porous plastics, is characterized in that, be made up of the component of following weight part: polyvinyl chloride 100 parts, organotin stabilizer 1.5 ~ 3.0 parts, 20 ~ 30 parts, softening agent, whipping agent 4 ~ 6 parts, auxiliary blowing agent 1.0 ~ 1.5 parts, acrylate copolymer 8 ~ 10 parts, organo-peroxide linking agent 1.2 ~ 1.5 parts, additional crosslinker 4 ~ 6 parts, compounded lubricant 0.5 ~ 1.0 part, 15 ~ 20 parts, static inhibitor.
Described static inhibitor is the mixture of polyamide/polyester block static inhibitor and polyoxyethylene glycol/Sipacril 2739OF static inhibitor or the Polymers static inhibitor containing quaternary ammonium salt group 1 ~ 3:1 in mass ratio.
Described whipping agent be Cellmic C 121 (be called for short AC) with sodium bicarbonate (being called for short SBC) in mass ratio 2 ~ 4:1 mix, auxiliary blowing agent is zinc oxide.
Described organo-peroxide linking agent is dicumyl peroxide (being called for short DCP) or two (tert-butyl peroxy base) diisopropyl benzene (being called for short BIPB).
Described additional crosslinker is the different base cyanurate of three allyls (being called for short TAIC), triallylcyanurate (being called for short TAC), pentaerythritol triacrylate or ethoxyquin Viscoat 295.
Described softening agent is tricresyl phosphite (nonyl phenyl) ester (be called for short TNPP), the mixture of any one or any two kinds in tricresyl phosphate (cumyl) ester (IPPP), Tritolyl Phosphate (being called for short TCP), tricresyl phosphate (2,3-bis-chloropropyl) ester (being called for short TDCP), tricresyl phosphate (chloropropyl) ester (being called for short TCPP).
Described softening agent is Tritolyl Phosphate (being called for short TCP), or the mixture of Tritolyl Phosphate (TCP) and tricresyl phosphate (2,3-bis-chloropropyl) ester (being called for short TDCP).
Described lubricant be stearylamide or N, N '-ethylenebisstearamide (being called for short EBS) with polyethylene wax or/and Microcrystalline Wax is or/and oxidized polyethlene wax is or/and stearic mixture.
Described vinyl chloride resin is the polyvinyl chloride that suspension method is produced, and the polymerization degree is 800 ~ 1000.
A kind of antistatic PVC porous plastics and preparation method thereof, is characterized in that, adopts following steps to obtain:
1) grind: whipping agent and softening agent are weighed by proportioning, grinds through colloidal mill;
2) material is compounding: by the polyvinyl chloride, organotin stabilizer, auxiliary blowing agent, acrylate copolymer, organo-peroxide linking agent, additional crosslinker, compounded lubricant, the static inhibitor that weigh by proportioning, and through the whipping agent of grinding acquisition and softening agent Hybrid Heating in high low speed mixer group in step 1), during to mixing temperature 100 ~ 120 DEG C, material is put into low speed mixer, discharging when temperature of charge is cooled to 40 ~ 45 DEG C;
3) extrusion moulding: by compounding material by extruder for shaping, extrusion temperature is 160 ~ 170 DEG C and obtains pre-shaping parison;
4) second time of foaming sizing: by pre-shaping parison second time of foaming, sizing in a mold, blowing temperature is 190 ~ 200 DEG C.
Be described as follows of the present invention:
The present invention's organotin stabilizer used also can be Thiovanic acid isooctyl acrylate Monobutyltin, Thiovanic acid isooctyl acrylate monomethyl tin, Thiovanic acid isooctyl acrylate list tin octylate, Thiovanic acid isooctyl acrylate dibutyl tin, Thiovanic acid isooctyl acrylate dibutyl tin, Thiovanic acid isooctyl acrylate dibutyl tin, dialkyl group dibutyitin maleate, lauric acid dibutyitin maleate or dibutyl tin laurate.In the present invention, stablizer used is 17MOK is that Chemtura Corporation of the U.S. produces.
The full lipin polymer that several yields of the acrylate copolymer that the present invention is used are greater than 3,000,000 can be copolymer of methyl methacrylate-styrene-butadiene, butyl methacrylate-styrene-butadiene copolymer, methyl methacrylate-butyl methacrylate multipolymer or β-dimethyl-aminoethylmethacrylate-butyl methacrylate copolymer.The ZB-530 of preferred Zibo Hua Xing auxiliary agent company.
Compared with prior art, the beneficial effect that a kind of antistatic PVC porous plastics of the present invention and preparation method thereof has is:
1, antistatic PVC porous plastics of the present invention has excellent antistatic persistence; Polyamide/polyester block static inhibitor is adopted to mix with polyoxyethylene glycol/Sipacril 2739OF static inhibitor in the present invention, or polyamide/polyester block static inhibitor mixes with the Polymers static inhibitor containing quaternary ammonium salt group, is used as static inhibitor.Use static inhibitor composite in order to obtain better antistatic effect, but most importantly avoid conflicting with existing patent.
2, antistatic PVC porous plastics of the present invention has excellent fire-retardancy.Applicant designs the mixture that softening agent is two or three in tricresyl phosphite (nonyl phenyl) ester (TNPP), tricresyl phosphate (cumyl) ester (IPPP), Tritolyl Phosphate (TCP), tricresyl phosphate (2,3-bis-chloropropyl) ester (TDCP), tricresyl phosphate (chloropropyl) ester (TCPP).Good plasticization effect can be obtained when preferred plasticizer is the mixture of TCP or TCP and TDCP, be conducive to the rebound performance improving expanded plastic of the present invention.(these softening agent have flame retardant resistance, can ensure the flame retardant effect of material high.
3, antistatic PVC porous plastics quality of the present invention is slim and graceful, rebound resilience good, is applicable to the package buffer material as high-grade electronic product.Static inhibitor used in the present invention itself is the static inhibitor of superpolymer type, and itself can not move, and this maintains material permanent antistatic.Auxiliary agent such as the EBS simultaneously used has anti-static function again, but this auxiliary agent belongs to small molecules, easily moves.Crosslinked technology is adopted to have following object: one is that crosslinked rear material forms network structure, plays constraint effect, avoid migration precipitation to small molecules auxiliary agent; Two be add man-hour crosslinking structure can make whipping agent produce bubble be wrapped in matrix, be conducive to produce more low-density foam materials; Do not have crosslinked, bubble very easily subsides; Three is rebound resiliences that the network structure itself be cross-linked to form ensures material self.
4, preparation method of the present invention is simple and easy to do, because applicant gives the restriction of clear and definite amounts of components, time-temperature, rotating speed in operation, is easy to control in actual production for the quality of obtained PVC porous plastics.
Embodiment
Embodiment 1 ~ 10 is embodiments of a kind of antistatic PVC porous plastics of the present invention and preparation method thereof, and wherein embodiment 1 is most preferred embodiment.The embodiment proportioning component of this antistatic PVC porous plastics is as shown in table 1.
Table 1 embodiment 1 ~ 5 component proportion (by weight)
。
In embodiment 1 ~ 5 whipping agent A be Cellmic C 121 and sodium bicarbonate in mass ratio 3:1 mix.In embodiment 1 ~ 5, static inhibitor A mixes according to polyamide/polyester block static inhibitor and polyoxyethylene glycol/Sipacril 2739OF static inhibitor mass ratio 2:1.
The component proportion of embodiment 1 ~ 5 is pressed shown in table 1, and prepares as follows:
1) grind: whipping agent and softening agent are weighed by proportioning, grinds through colloidal mill;
2) material is compounding: by the polyvinyl chloride, organotin stabilizer, auxiliary blowing agent, acrylate copolymer, organo-peroxide linking agent, additional crosslinker, compounded lubricant, the static inhibitor that weigh by proportioning, and through the whipping agent of grinding acquisition and softening agent Hybrid Heating in high low speed mixer group in step 1), during to mixing temperature 100 DEG C, material is put into low speed mixer, discharging when temperature of charge is cooled to 40 DEG C;
3) extrusion moulding: by compounding material by extruder for shaping, extrusion temperature is 170 DEG C and obtains pre-shaping parison;
4) second time of foaming sizing: by pre-shaping parison second time of foaming, sizing in a mold, blowing temperature is 190 DEG C.
Table 2 embodiment 6 ~ 10 component proportion (by weight)
。
In embodiment 6 ~ 10, whipping agent B is that Cellmic C 121 and sodium bicarbonate ratio 2:1 mix.In embodiment 1 ~ 5, antistatic agent B mixes according to polyamide/polyester block static inhibitor and the Polymers static inhibitor mass ratio 2:1 containing quaternary ammonium salt group.
The component proportion of embodiment 6 ~ 10 is pressed shown in table 1, and prepares as follows:
1) grind: whipping agent and softening agent are weighed by proportioning, grinds through colloidal mill;
2) material is compounding: by the polyvinyl chloride, organotin stabilizer, auxiliary blowing agent, acrylate copolymer, organo-peroxide linking agent, additional crosslinker, compounded lubricant, the static inhibitor that weigh by proportioning, and through the whipping agent of grinding acquisition and softening agent Hybrid Heating in high low speed mixer group in step 1), during to mixing temperature 120 DEG C, material is put into low speed mixer, discharging when temperature of charge is cooled to 45 DEG C;
3) extrusion moulding: by compounding material by extruder for shaping, extrusion temperature is 170 DEG C and obtains pre-shaping parison;
4) second time of foaming sizing: by pre-shaping parison second time of foaming, sizing in a mold, blowing temperature is 200 DEG C.
comparative example 1 ~ 5
Comparative example 1 ~ 6 be applicant in order to contrast with the scheme and effect of embodiment, and design comparative example.The component proportion of comparative example 1 ~ 6 is as shown in table 3.
Table 3 comparative example 1 ~ 5 component proportion (by weight)
。
In comparative example 1 ~ 6, whipping agent A used is identical with embodiment 1 ~ 5.The preparation method of comparative example 1 ~ 3 is with embodiment 1 ~ 5; The preparation method of comparative example 4 ~ 5 is with embodiment 6 ~ 10.
performance test
Embodiment 1 ~ 10 and comparative example 1 ~ 5 resulting composition are detected, comparative example is identical with embodiment production and detection method, and its detected result is as shown in table 4 ~ 6.Density detects according to GB/T6343-2009; Volume resistance detects according to GB/T15662-1995; Oxygen index detects according to GB/T10707-2008.
Table 4 embodiment 1 ~ 5 the performance test results
。
Table 5 embodiment 1 ~ 5 the performance test results
。
Table 6 comparative example 1 ~ 6 the performance test results
。
Detected result with reference to table 4 ~ 6 can be found out, comparative example 1 ~ 3 uses single static inhibitor, and antistatic effect is poor compared with two kinds of composite results of use; Comparative example uses common plasticizer, and material oxygen index is little, poor fire; Comparative example 5 is crosslinked does not have static inhibitor, and antistatic effect is poor.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. an antistatic PVC porous plastics, it is characterized in that, be made up of the component of following weight part: polyvinyl chloride 100 parts, organotin stabilizer 1.5 ~ 3.0 parts, 20 ~ 30 parts, softening agent, whipping agent 4 ~ 6 parts, auxiliary blowing agent 1.0 ~ 1.5 parts, acrylate copolymer 8 ~ 10 parts, organo-peroxide linking agent 1.2 ~ 1.5 parts, additional crosslinker 4 ~ 6 parts, compounded lubricant 0.5 ~ 1.0 part, 15 ~ 20 parts, static inhibitor.
2. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described static inhibitor is the mixture of polyamide/polyester block static inhibitor and polyoxyethylene glycol/Sipacril 2739OF static inhibitor or the Polymers static inhibitor containing quaternary ammonium salt group 1 ~ 3:1 in mass ratio.
3. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described whipping agent be Cellmic C 121 and sodium bicarbonate in mass ratio 2 ~ 4:1 mix, auxiliary blowing agent is zinc oxide.
4. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described organo-peroxide linking agent is dicumyl peroxide or two (tert-butyl peroxy base) diisopropyl benzene.
5. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described additional crosslinker is the different base cyanurate of three allyls, triallylcyanurate, pentaerythritol triacrylate or ethoxyquin Viscoat 295.
6. the antistatic PVC porous plastics of one according to claim 1, it is characterized in that described: described softening agent is the mixture of any one or any two kinds in tricresyl phosphite (nonyl phenyl) ester, tricresyl phosphate (cumyl) ester, Tritolyl Phosphate, tricresyl phosphate (2,3-bis-chloropropyl) ester, tricresyl phosphate (chloropropyl) ester.
7. the antistatic PVC porous plastics of one according to claim 6, is characterized in that: described softening agent is Tritolyl Phosphate, or the mixture of Tritolyl Phosphate and tricresyl phosphate (2,3-bis-chloropropyl) ester.
8. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described lubricant is that stearylamide or N, N '-ethylenebisstearamide and polyethylene wax are or/and Microcrystalline Wax is or/and oxidized polyethlene wax is or/and stearic mixture.
9. the antistatic PVC porous plastics of one according to claim 1, is characterized in that: described vinyl chloride resin is the polyvinyl chloride that suspension method is produced, and the polymerization degree is 800 ~ 1000.
10. a preparation method for the antistatic PVC porous plastics as described in any one of claim 1 ~ 9, is characterized in that, adopts following steps to obtain:
1) grind: whipping agent and softening agent are weighed by proportioning, grinds through colloidal mill;
2) material is compounding: by the polyvinyl chloride, organotin stabilizer, auxiliary blowing agent, acrylate copolymer, organo-peroxide linking agent, additional crosslinker, compounded lubricant, the static inhibitor that weigh by proportioning, and through the whipping agent of grinding acquisition and softening agent Hybrid Heating in high low speed mixer group in step 1), during to mixing temperature 100 ~ 120 DEG C, material is put into low speed mixer, discharging when temperature of charge is cooled to 40 ~ 45 DEG C;
3) extrusion moulding: by compounding material by extruder for shaping, extrusion temperature is 160 ~ 170 DEG C and obtains pre-shaping parison;
4) second time of foaming sizing: by pre-shaping parison second time of foaming, sizing in a mold, blowing temperature is 190 ~ 200 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106566133A (en) * | 2016-11-03 | 2017-04-19 | 浙江申腾涂层织物有限公司 | Environmentally-friendly PVC foamed material |
| CN109233146A (en) * | 2018-08-17 | 2019-01-18 | 安徽瑞腾塑业有限公司 | A kind of formula system suitable for wide cut hollow foamed plate |
| CN109503983A (en) * | 2018-10-22 | 2019-03-22 | 江苏理工学院 | A kind of environmental protection flame retardant PVC foam material and preparation method thereof |
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| CN103804820A (en) * | 2014-01-27 | 2014-05-21 | 山东博拓塑业股份有限公司 | High-foamed PVC (Polyvinyl Chloride) alloy material and preparation method thereof |
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Patent Citations (1)
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| CN103804820A (en) * | 2014-01-27 | 2014-05-21 | 山东博拓塑业股份有限公司 | High-foamed PVC (Polyvinyl Chloride) alloy material and preparation method thereof |
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| LIXIA BAO,ET AL.: "Preparation and characterization of a novel antistatic poly(vinyl chloride)/quaternary ammonium based ion-conductive acrylate copolymer composites", 《JOURNAL OF ELECTROSTATICS》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566133A (en) * | 2016-11-03 | 2017-04-19 | 浙江申腾涂层织物有限公司 | Environmentally-friendly PVC foamed material |
| CN109233146A (en) * | 2018-08-17 | 2019-01-18 | 安徽瑞腾塑业有限公司 | A kind of formula system suitable for wide cut hollow foamed plate |
| CN109503983A (en) * | 2018-10-22 | 2019-03-22 | 江苏理工学院 | A kind of environmental protection flame retardant PVC foam material and preparation method thereof |
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| CN105199255B (en) | 2017-12-22 |
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