CN100441625C - Plastic moisture removing foam eliminating mother particle - Google Patents
Plastic moisture removing foam eliminating mother particle Download PDFInfo
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- CN100441625C CN100441625C CNB2006100365792A CN200610036579A CN100441625C CN 100441625 C CN100441625 C CN 100441625C CN B2006100365792 A CNB2006100365792 A CN B2006100365792A CN 200610036579 A CN200610036579 A CN 200610036579A CN 100441625 C CN100441625 C CN 100441625C
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- plastic
- plastics
- moisture removing
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- mother particle
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Abstract
The present invention relates to a kind of plastic exsiccation defoaming mother granules for plastic application industry. Said mother granule composition includes (by wt%) 60-80% of calcium oxide, 10-20% of ethylene-vinyl acetate copolymer and 10-20% of amorphous olefin-copolymer dispersing agent. It can be used for exsiccation and defoaming in plastic product production.
Description
Technical field
The present invention relates to the plastic applications production, specifically a kind of plastic master batch that uses in the plastic applications production.
Background technology
The plastic applications production can be said so in present stage and be existed everywhere; various plastics are complete; the field that relates to is extensive unusually; in the plastic applications production; can generally run into a problem; it is exactly the institute of plastics water content own; in the double-screw extruding pelletizing machine; plastics are heated to more than 100 ℃; even during up to 200 ℃; moisture is gasification rapidly at high temperature; moisture gasifies in machine; be melted plastic wraps in addition; aqueous vapor can't be overflowed; so can stay in the plastics or surface and form the hole and the bubble of many plastics; this plastics hole and bubble not only can influence the outward appearance smooth finish of the end product of making; more can cause the decline significantly of plastics mechanical mechanics property; so plastic applications manufacturers has continued the several years to the research of plastic moisture removing foam eliminating; be big case at first with a kind of bake oven type c; plastic pellet is put into big case award certain temperature; its moisture content can be volatilized away, but this volatilization be confined to more the plastic pellet surface with moisture, cause the plastics of terminal to still have the hole bubble.After have the people to continue research, its invention is for CN00805518.1, name is called the particularly device of the polycarbonate solutions of high molecular degassing of plastics, it is the mutual meshing axle that double-shafted extruder has the interaction of rotating in the same way.The length/diameter of extrusion machine than less than/equal 40, be designed to two strokes at the exhaust area axle of extrusion machine, be designed to three strokes and form district's axle at pressure, this device can prepare the polycarbonate with extra high x ray fluoroscopy x rate economically.This patent introduction of tool has good degasifying effect; but the price of this machinery is not cheap yet; the investment ability of medium-sized and small enterprises is limited; therefore there is new method to produce again; preparation method as Chinese patent application number 200410012555.4 plastics foam eliminating mother particles; get 25～100 parts in the calcium oxide of ratio of weight and number earlier; 5～20 parts of new LDPE (film grade)s; 17.5～70 parts of high density polyethylene(HDPE)s; 1.5～6 parts of calcium stearates, 1～4 part of whiteruss stirs the above-mentioned raw materials input in the mixing roll; drop into after being warmed to 100～130 ℃ in the parallel dual-screw extruding granulator earnestly, plastics froth breaking masterbatch.And for example application number 200410027918 plastic workings of Chinese patent are with efficient froth breaking dehumidification function master batch, it is to be main raw material with polyethylene and mineral dye calcium oxide, utilize the dispersion agent of stearic acid monoglycerides (weight content 5%～25%) as mineral dye, with the surface-modifying agent of low-molecular-weight polyethylene wax (weight content 5%～25%) as mineral dye, disperse by melt blending, and then extruding pelletization forms and contains the high-content of mineral dye content from 10%～80%, and plastic working is with efficient froth breaking dehumidification function master batch.More than two methods similarity is arranged, all be with calcium oxide as the defoamer that dries, calcium stearate, stearic acid monoglycerides are as lubrication dispersing agent, polyethylene is a plastic carrier.More than two kinds of methods all helped the difficult problem of investment of medium-sized and small enterprises, promptly do not spend to purchase yet and dry, the high price machine of froth breaking, just can solve the bubble in the plastics, but also there is weak point in above these two kinds of methods, promptly be this with height, new LDPE (film grade), or low molecular weight polyethylene wax is carrier, or make the plastic moisture removing foam eliminating masterbatch (grain) of surperficial properties-correcting agent, can only be used for the flexible glue class, it is poor because of the two mutual solubility to be used for PS (polystyrene resin) ABS (acrylonitrile-butadiene-styrene copolymer), slight crack can appear, reducing plastics intensity, secondly is that this froth breaking masterbatch moisture absorption is strong, easily absorbs airborne moisture and loses efficacy, so, cause the difficulty in the use storing and using strict restriction.
Summary of the invention
The purpose of this invention is to provide a kind of plastic moisture removing foam eliminating mother particle, the moisture removing foam eliminating when it can be used for any plastic working goods, and security is good, nontoxic, pollution-free, is placed on month quality no change in the air.
Technical solution of the present invention is that it consists of W/W and calculates
Calcium oxide 60～80%
Ethylene-vinyl acetate copolymer 10～20%
Unformed olefin copolymer dispersion agent 10～20%.
Technical solution of the present invention is that it consists of W/W and calculates
Calcium oxide 65～75%
Ethylene-vinyl acetate copolymer 12～18%
Unformed olefin copolymer dispersion agent 12～18%.
Technical solution of the present invention is that it consists of W/W and calculates
Calcium oxide 70%
Ethylene-vinyl acetate copolymer 15%
Unformed olefin copolymer dispersion agent 15%.
Ethylene-vinyl acetate copolymer of the present invention (EVA), general vinyl acetate content is 5%～40%, EVA is owing to introduced Vinyl Acetate Monomer in molecular chain, thereby reduced high-crystallinity, improved snappiness, shock resistance, filler intermiscibility and heat seal, the present invention is used as carrier with EVA, the unformed olefin copolymer (APAO) that the present invention adopts is to use extraordinary catalyzer, with propylene or ethene, 1-butylene carries out polyreaction and gets separately, and it has and can mix with a large amount of mineral fillers, and it is reactionless fully to water, the characteristic of anti-hydrolysis, as dispersion agent, APAO can wrap up it in the calcium oxide outside in addition with APAO in the present invention.Therefore master batch of the present invention can reveal and puts that considerable time undergoes no deterioration in the air, and this also is the special feature that prior art can't be by comparison.
Table 1 reveals puts water absorption test in the air
| Hour | Prior art plastic moisture removing foam eliminating mother particle (g) | Plastic moisture removing foam eliminating mother particle of the present invention (g) |
| 0 | 100 | 100 |
| 1 | 101 | 100 |
| 2 | (101.5 partial failure) | 100 |
| 3 | 103 (complete failures) | 100 |
| 24×30 | 100.6 |
Two kinds of chemical substances that the present invention adopts have been owing to reduced high-crystallinity, thereby be easy to mix with all types of plastic, have overcome the deficiency that the prior art plastic moisture removing foam eliminating mother particle only can be used for flexible glue.The present invention can be used for PE (polyethylene), PPC (polypropylene), PVC (polychlorostyrene ethene), LDPE (new LDPE (film grade)), HDPE (high density polyethylene(HDPE)), MDPE (medium-density polyethylene), PS (polystyrene resin), ABS (acrylonitrile-butadiene-styrene copolymer) comprises reworked material and degradative plastics, particularly PS, and the water content of ABS own is big, general plastics foam eliminating mother particle all can't be to its froth breaking, work in-process intensive water-absorbent of the present invention, thus improve the quality of products and yield rate, can obviously boost productivity and cut down the consumption of energy.
Water-absorbent of the present invention is strong, and maximum water regain is equivalent to weight own more than 20%.
Physical index of the present invention:
| Project Ltem | Testing method Test Method | Index Vslues | The Unit of unit |
| Density D ensity | GB1033-86 | ＜1.5 | g/cm 3 |
| Melting index Meltl:low lndex | GB3682-89 | ＜3.0 | G/10min |
| Moisture Moi sture | Q/HJYH-2001 | ＜0.5 | ％ |
| Color Colout | Range estimation | Grey (ircy) | |
| Ash content Ash Content | Q/HJYH-2001 | 50-80 | ％ |
The present invention's consumption in plastics processing is 1%～5%, and this is moisture general in 1～3% of plastics weight according to plastics self, in actual the use, according to the starting material contained humidity, regulates adding proportion.Use plastics processing of the present invention, its starting material and filler need not dried.
The present invention has nontoxic, and is pollution-free, do not influence the use properties of plastics.
Defoaming effect of the present invention detects, can be by the plastics detector of existing market sale, such as Shanghai 15J plastics detector, or ultrasonic reflectoscope, as Hainan HNGP2005-086-001 of market sale, and microwave, detection techniques such as X ray all can detect the bubble situation in the plastics.At the factory scene, the simple detection method of a cover is arranged also.As the 100kg plastics, add 2% master batch, take by weighing product weight after the processing, as for 102kg then prove in the former plastics moisture content fully and the calcium oxide in the master batch chemical action has taken place, generated Calcium hydrogen carbonate, so product weight equates with the gross weight that feeds intake, and is the film of blowing out as fruit product at this moment, then face is complete, no hole, plastic plate in this way, smooth surface then, cleaning.
Add 1% master batch as the 100kg plastics, take by weighing product weight after the processing and do not reach 101kg, and the sheet material of goods has washmarking, cut sheet material, its cross section has bubble, proves that former plastics water content greater than 1%, will adjust the add-on of master batch.
The plastics froth breaking dehumidifying master batch effect of the present invention and prior art is (utilizing above factory in-situ check and test method) relatively, existing these plastics moisture 2%
| The master batch kind | The plastics input amount | The plastics froth breaking dehumidifying master batch (g) that adds | Plastics (g) |
| Prior art | 100kg | 2kg | 101.4kg |
| The present invention | 100kg | 2kg | 102.kg |
It is aqueous 70% that explanation prior art master batch has only absorbed plastics in this table, still has 30% water through vaporization or volatilization, and this will inevitably cause the existence of bubble in the plastics, and the washmarking that stays of plate surface, influenced plastics intensity, frosting smooth finish.
The present invention is by six detections of European Union, and the general notary of SGS detects, and it is numbered test report (the SGS Ref. No. GZ050708702EC) test request of GZSCR050748801/LP: (1) entrusts lead, cadmium, mercury and the content of 6-valence Cr ions in the sample.
(2) Polybrominated biphenyl in the trust sample, the content of Poly Brominated Diphenyl Ethers.
Testing method: (1) lead content-with reference to EPA method 3050B:1996.
Cadmium content-with reference to BSEN112:2001 method B.
Mercury content-with reference to EPA method 3050B:1996.
Content of 6-valence Cr ions-with reference to EPA method 3050B:1996 and 7196A:1992.Analytical instrument is flame atomic absorption spectrophotometer and inductively coupled plasma atomic emission view/ultraviolet spectrophotometer.
(2) SGS internalist methodology.Analytical instrument is GC/MS.
Test result:
(1) grey particles
Lead content (Pb) (ppm) 6
Cadmium content (Cd) N.D.
Mercury content (Hg) N.D.
Content of 6-valence Cr ions [CR (V1)] (ppm) 4
Illustrate :-N.D=do not detect (＜2ppm)
-ppm=mg/kg
| Fire retardant | The grey particles |
| Polybrominated biphenyl (PBBs) | --------------- |
| Single bromo biphenyl | N.D |
| '-dibromobiphenyl | N.D |
| Three bromo biphenyls | N.D |
| Tetrabromo biphenyl | N.D |
| Pentabromo-biphenyl | N.D |
| Hexabromobiphenyl | N.D |
| Seven bromo biphenyls | N.D |
| Octabromo-diphenyl | N.D |
| Nine bromo biphenyls | N.D |
| Decabromodiphenyl | N.D |
| Polybrominated biphenyl (PBBs) | ---------------- |
| Single bromo biphenyl | N.D |
| '-dibromobiphenyl | N.D |
| Three bromo biphenyls | N.D |
| Tetrabromo biphenyl | N.D |
| Pentabromo-biphenyl | N.D |
| Hexabromobiphenyl | N.D |
| Seven bromo biphenyls | N.D |
| Octabromo-diphenyl | N.D |
| Nine bromo biphenyls | N.D |
| Decabromodiphenyl | N.D |
Illustrate :-N.D=do not detect (＜5ppm)
-ppm=mg/kg
The present invention is qualified by six detections of European Union, and product can be directly exported to European Union member countries.
Manufacture method of the present invention is with calcium oxide, ethylene-vinyl acetate copolymer, no olefin copolymer dispersion agent is respectively by after weight takes by weighing separately, place thorough mixing 25 clocks in the stirrer, place in the 75 type twin screw extruders, temperature is controlled at 100 ℃～120 ℃ and extrudes, also can extrude by the several heating interval sections of being provided with of prior art in machine, and then be fervent moulding.
Advantage of the present invention is the moisture removing foam eliminating in the time of can being used for any plastic working goods, and security is good, nontoxic, pollution-free, is placed on month quality no change of air.
Embodiment
Embodiment one
Plastic moisture removing foam eliminating mother particle of the present invention, it consists of W/W and calculates
Calcium oxide 70%
Ethylene-vinyl acetate copolymer 15%
Unformed olefin copolymer dispersion agent 15%.
Embodiment two
Plastic moisture removing foam eliminating mother particle of the present invention, it consists of W/W and calculates
Calcium oxide 60%
Ethylene-vinyl acetate copolymer 20%
Unformed olefin copolymer dispersion agent 20%.
Embodiment three
Plastic moisture removing foam eliminating mother particle of the present invention, it consists of W/W and calculates
Calcium oxide 80%
Ethylene-vinyl acetate copolymer 10%
Unformed olefin copolymer dispersion agent 10%.
Claims (3)
1, plastic moisture removing foam eliminating mother particle, its composition is by weight
Calcium oxide 60～80%
Ethylene-vinyl acetate copolymer 10～20%
Unformed olefin copolymer dispersion agent 10～20%.
2, plastic moisture removing foam eliminating mother particle according to claim 1, its composition is by weight
Calcium oxide 65～75%
Ethylene-vinyl acetate copolymer 12～18%
Unformed olefin copolymer dispersion agent 12～18%.
3, plastic moisture removing foam eliminating mother particle according to claim 2, its composition is by weight
Calcium oxide 70%
Ethylene-vinyl acetate copolymer 15%
Unformed olefin copolymer dispersion agent 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100365792A CN100441625C (en) | 2006-07-18 | 2006-07-18 | Plastic moisture removing foam eliminating mother particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100365792A CN100441625C (en) | 2006-07-18 | 2006-07-18 | Plastic moisture removing foam eliminating mother particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1903927A CN1903927A (en) | 2007-01-31 |
| CN100441625C true CN100441625C (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100365792A Expired - Fee Related CN100441625C (en) | 2006-07-18 | 2006-07-18 | Plastic moisture removing foam eliminating mother particle |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942127B (en) * | 2009-07-03 | 2012-08-29 | 建德市嘉和新型材料有限公司 | ABS (Acrylonitrile Butadiene Styrene) and PA (Polyamide) dewatering master batch and preparation method thereof |
| CN103059392B (en) * | 2012-07-23 | 2014-10-01 | 建德市宏兴钙业有限责任公司 | Plastic defoamer |
| CN104692694B (en) * | 2015-02-05 | 2017-07-25 | 江苏苏博特新材料股份有限公司 | A kind of modified oxidized calcium class cement concrete swelling agent and preparation method thereof |
| CN108017828A (en) * | 2016-10-28 | 2018-05-11 | 成都盛达仁科技有限公司 | A kind of preparation method of plastics deicer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004175860A (en) * | 2002-11-26 | 2004-06-24 | Japan Polyolefins Co Ltd | Flame-retardant resin composition, its manufacturing method and electric wire and cable |
| WO2005023524A2 (en) * | 2003-08-29 | 2005-03-17 | Z Corporation | Absorbent fillers for three-dimensional printing |
| CN1616533A (en) * | 2004-09-29 | 2005-05-18 | 闫万琪 | Process for preparing plastic defoaming mother material |
-
2006
- 2006-07-18 CN CNB2006100365792A patent/CN100441625C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004175860A (en) * | 2002-11-26 | 2004-06-24 | Japan Polyolefins Co Ltd | Flame-retardant resin composition, its manufacturing method and electric wire and cable |
| WO2005023524A2 (en) * | 2003-08-29 | 2005-03-17 | Z Corporation | Absorbent fillers for three-dimensional printing |
| CN1616533A (en) * | 2004-09-29 | 2005-05-18 | 闫万琪 | Process for preparing plastic defoaming mother material |
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| Publication number | Publication date |
|---|---|
| CN1903927A (en) | 2007-01-31 |
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Granted publication date: 20081210 Termination date: 20120718 |