CN103044740B - Plastic filling lubrication master batch - Google Patents
Plastic filling lubrication master batch Download PDFInfo
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Abstract
The invention discloses a plastic filling lubrication master batch. The plastic filling lubrication master batch is formed by compounding 100 parts by mass of composite inorganic powder, 20 to 100 parts by mass of lubricants, 1 to 5 parts by mass of auxiliary lubrication dispersants, 0.1 to 3 parts by mass of coupling agents, 5 to 30 parts by mass of carrier resin and 0 to 2 parts by mass of functional additives, wherein the composite inorganic powder is prepared by compounding lamellar inorganic powder and spherical or near spherical inorganic powder by coating and intercalation modes according to a proportion of 2:1 to 2:3; a part of spherical or near spherical inorganic powder serves as a shell which is coated outside a kernel formed by lamellar inorganic powder, and a part of spherical or near spherical inorganic powder with small particle size is infiltrated between the lamellar inorganic powder layers. By the optimization of raw materials, lamellar inorganic powder and spherical inorganic powder are compounded and matched with other components to form the filling lubrication master batch which has good lubrication and a filling incremental effect in the plastic processing, and further has efficacies of increasing toughness, strength and glossiness to reach a purpose of combining filling and lubrication, thereby facilitating simplifying the formulation and process of plastic, improving overall performances of plastic products and lowering the production cost.
Description
Technical field
The present invention is a kind of plastic filler, belongs to field of plastics processing.
Background technology
Due to the widespread use with plastics that develops rapidly of plastics industry, filling plastic technology obtains people's attention day by day.In plastic working by adding various mineral filler composite moldings, not only can greatly reduce the production cost of plastics, and can significantly improve some performances of plastics, as: mechanical property, thermal characteristics, electrical property, wear resisting property, lubricity and ageing-resistant etc., thus give the characteristic that plastics are new, to meet the needs of different purposes; Simultaneously, in plastics processing, lubricated is also indispensable sport technique segment, and utilize spherical and sheet inorganic powder as lubricant or lubrication assistant composition existing more precedent in power lubrication, but be used in plastic working also seldom.By coated, in conjunction with both advantages, overcoming both weakness with intercalation is compound by spherical compound with sheet powder, can have good mechanical property as Lubrication Composition for plastics simultaneously, is the field of a blank.
Chinese patent CN87102663 has openly reported a kind of plastic filler parent granule of high dispersive type, this filler parent granule can be under larger loading level, not only do not reduce the physical and mechanical properties of former plastics, and its processing characteristics and physical and mechanical properties are increased substantially, so both reduced plastics cost, improved again its quality.This filler parent granule is by calcium carbonate as matrix, and through auxiliary agent surface treatments such as chelating type phthalates, and to take petroleum resin, ethylene-propylene rubber(EPR), low-molecular-weight resin, dispersion agent, waste and old recovery polyolefin blend body be carrier, through mixing, in blocks, pelletizing, forms.
Chinese patent CN201110098592.1 has openly reported a kind of plastic filler parent granule, contains vector resin, terephthaldehyde's acid metal salt, silane coupling agent, lubricant.Wherein vector resin is selected from newborn plastics or reprocessed plastic(s), and lubricant is selected from one or more in paraffin, white oil, stearic acid.
Chinese patent CN200310117747.7 has openly reported a kind of filling graphite lubrication masterbatch and production method thereof.Take graphite, Low Density Polyethylene or linear low density polyethylene and titanic acid ester, Aluminate or silane coupling agent, mineral oil or white oil and various functional agent is raw material, after above-mentioned each component is mixed by a certain percentage, through twin screw extruder melting mixing, granulation at a certain temperature, form.Graphite lubrication masterbatch of the present invention can join nylon easily, in the engineering plastics such as polyoxymethylene, reaches lubricated and wear-resisting effect.
Chinese patent CN201010588014.1 has openly reported the preparation method of high-content superfine inorganic powder master batch for filling plastic, the preparation method who it is characterized in that this master batch adopts metering feeding, the twin screw extruder plasticizing with two side feedings is extruded, and fervent air-cooled granulation obtains ultra tiny inorganic powder master batch; The formula of master batch is by mass percentage: inorganic super-fine powder 75～90wt%, additive 2～12wt%, carrier 8～20wt%.The invention solves superfine powder feeding difficulty in the ultra tiny inorganic powder filled master batch preparation process of high-content, disperse the problems such as pollution inhomogeneous, to environment.This master batch its dispersion effect when the reinforced plastics modification is good, excellent product performance.
What foregoing invention patent was all reported is respectively filling plastic function, or be lubricating function, can not reach a filling and the lubricated object combining, there is no so far by filler is combined to prepare with lubricating the report that a kind of filling plastic lubricates masterbatch.
Summary of the invention
The object of the invention is to solve above technical problem, provide a kind of filling plastic to lubricate master batch, by raw material preferably, utilize sheet and spherical inorganic powder compound and mutually collaborative, coordinate applicable lubricant, add other functional aids simultaneously, each component is reasonably compound, make the packing lubrication master batch forming in plastic working, have good oilness and fill increment effect, have toughness reinforcing enhancing concurrently, increase the effects such as rigidity, be conducive to simplify plastic formula and technique, improve plastics performance, reduce production costs.
The present invention is by the following technical solutions: a kind of filling plastic lubricates master batch, it is characterized in that 100 parts of inorganic powders by mass, 20～100 parts of lubricants, 1～5 lubrication assistant dispersion agent, 0.1～3 part of coupling agent, the vector resin of 5～30 parts, the particle of 0～2 part of compound composition of functional agent.
For making packing lubrication master batch there is good mobile improvement effect, strengthening toughening effect, further technical scheme is: described inorganic powder is that the inorganic powder by the inorganic powder of sheet and spherical or almost spherical is composited to be coated with intercalation mode in the ratio of 2:1～2:3, the inorganic powder of the spherical or almost spherical of part is coated on outside the kernel that the inorganic powder of sheet forms as shell, and the inorganic powder of the spherical or almost spherical of part small particle size infiltrates sheet inorganic powder interlayer.By spherical inorganic powder is remained on to sheet inorganic powder surface, spherical inorganic powder is more easily produced and roll and slide; The spherical inorganic powder that is inserted into sheet inorganic powder interlayer also contributes to the interformational sliding of sheet inorganic powder.This effect is the most remarkable in the friction of plastic pellet and processing units inwall, makes composite granule play the effect of similar external lubricant.
For making mobile improvement effect, the enhancing toughening effect of packing lubrication master batch, further optimize, further technical scheme is: the inorganic powder of described sheet comprises one or more in polynite, kaolin, graphite, talcum powder, molybdenumdisulphide, mica, brucite, aluminium hydroxide, powder footpath/thickness rate 20～50, thickness 100～500nm.Different types of sheet inorganic powder interfloor distance is different, and the complexity of interformational sliding is different, and strengthen toughening effect also has notable difference simultaneously; Powder size is different, and the dispersiveness in plastics is different, lubricated also different with reinforced effects, also not identical with the effect of spherical powder volume recombination.So the kind of powder, size have all been carried out preferably.
For making packing lubrication master batch there is good processibility, further technical scheme is: the inorganic powder of described spherical or almost spherical comprises one or more in barium sulfate, glass microballon, titanium dioxide, sulfurated lime, silica powder, Feldspar Powder, diameter of particle scope 1000～5000 orders.Kind size spherical or almost spherical powder will affect the dispersiveness in plastics equally, lubricated and reinforced effects and and powder between compound effect.So spherical or almost spherical inorganic powder are carried out being preferably also necessary.
For the processibility of packing lubrication master batch is further promoted, have good inside and outside oilness, further technical scheme is: described lubricant comprises one or more in polyethylene wax, oxidized polyethlene wax, Poly Propylene Wax, ethene-vinyl acetate copolymer wax, paraffin, stearic acid, calcium stearate, Zinic stearas, Magnesium Stearate simultaneously.Above lubricant is according to the difference of polarity, and the durothermic difference of fusing point, is applicable to different plastics varieties, and interior degree lubricated and outer lubrication is also different separately.According to plastics variety, they are carried out reasonably combined, various oilnesies effectively can be brought into play, produce synergy.
The present invention, because lubricant addition is large, realize smooth granulation, and technological temperature requires lower; For realizing low processing temperature, granulation forms master batch smoothly, and has good consistency with plastics, and the fusing point of the resin carrier of selecting must be lower, and melting index is higher.Therefore the present invention also further technical scheme be: described vector resin comprises that fusing point is 70 ℃～105 ℃, one or more in the Low Density Polyethylene of melting index 15～80g/10min, Atactic Polypropelene, ethene-vinyl acetate copolymer.
For forming the dispersed effectively compound particle of each component, the present invention adopts following manufacture method:
Step 1, the inorganic powder of sheet inorganic powder and spherical or almost spherical is coated by high-speed mixer initial reaction under the assistance of composite assistant;
Step 2, adds extra-fine grinding equipment compound tentatively coated inorganic powder;
Step 3, drops into inorganic powder in batches with other feed composition in the high-speed mixer that is warmed up to assigned temperature and fully mixes;
Step 4, the material that step 3 is obtained is used screw extruder granulation.
The present invention compares the auxiliary agents such as conventional lubricant or inorganic powder filler and has a clear superiority in.
The present invention cooperatively interacts by spherical, the inorganic powder of almost spherical tool oilness and the inorganic powder of sheet, in the time of the enhancement of performance inorganic powder, can also bring into play certain oilness, improves processibility; By the reasonably combined of lubricant with use, form the lubricant effect of combine with inorganic powder, plastic working can greatly be promoted, be particularly suitable for low flow plastics with require plastics to use in thering is the forming process of mobility; Itself has fillibility, and good oilness of while can meet plastics and further add weighting agent, improves the demand of loading level, does not need separately to add lubricant again; Auxiliary by various auxiliary agents, functions such as making the present invention obtain toughness reinforcing enhancing simultaneously, increase rigidity, increase gloss, be weather-proof, anti-oxidant, can simplify plastic formula greatly greatly, reduces costs; The present invention is a kind of multi-functional, easily adds polymolecularity, high-compatibility, the cheaply lubricated master batch of plastics.
By specific embodiment, again foregoing of the present invention is described in further detail below, but this should be interpreted as to the scope of theme of the present invention only limits to this.Without departing from the idea case in the present invention described above, various replacements or the change according to ordinary skill knowledge and customary means, made, all should comprise within the scope of the invention.
Specific embodiment
Embodiment mono-
In the present embodiment, the formula of packing lubrication master batch is as table 1:
Table 1
| Component | Quality (part) |
| Inorganic powder | 100 |
| Polyethylene wax | 25 |
| Calcium stearate | 10 |
| Low Density Polyethylene | 15 |
| Silane coupling agent | 1 |
| White dyes | 0.1 |
| Oxidation inhibitor | 0.5 |
In the present embodiment, the proportioning of inorganic powder is as table 2:
Table 2
| Component | Quality (part) |
| Talcum powder | 100 |
| Mica | 20 |
| Barium sulfate | 100 |
It is blend granulation in the high-density polyethylene plastics of 0.08g/min that embodiment mono-packing lubrication master batch is added to melting index by 15%.
The properties data of the pure high density polyethylene(HDPE) granulation of embodiment mono-contrast are as table 3:
Table 3
| Project | Pure high density polyethylene(HDPE) | Embodiment mono- |
| Melting index (g/10min) | 0.08 | 0.25 |
| Tensile strength (MPa) | 28.0 | 33.2 |
| Elongation at break (%) | 755 | 678 |
| Modulus in flexure (MPa) | 1172 | 1256 |
| Notched Izod impact strength (J/m) | 88.6 | 82.3 |
As can be seen from Table 3, add poly mobility after packing lubrication master batch of the present invention to increase, processibility is improved; Intensity increases to some extent, and rigidity increases; Toughness reduces slightly.
Embodiment bis-
In the present embodiment, the formula of filler parent granule is as table 4:
Table 4
| Component | Quality (part) |
| Inorganic powder | 100 |
| Poly Propylene Wax | 50 |
| Stearic acid | 15 |
| Atactic Polypropelene | 20 |
| Titanate coupling agent | 1.5 |
| Oxidation inhibitor | 0.5 |
| Toughner | 2 |
In the present embodiment, the proportioning of inorganic powder is as table 5:
Table 5
| Component | Quality (part) |
| Talcum powder | 100 |
| Polynite | 50 |
| Titanium dioxide | 15 |
| Barium sulfate | 85 |
Embodiment bis-packing lubrication master batches are added to blend granulation in the acrylic plastering of filling 40% calcium carbonate by 5%, and the formula of the pellet that it obtains is: 55% polypropylene+40% calcium carbonate+5% packing lubrication master batch.
The properties data of embodiment bis-contrast virgin pps and the direct filled polypropylene granulation of 40% calcium carbonate are as table 6:
Table 6
| Project | Virgin pp | Polypropylene+40% calcium carbonate | Embodiment bis- |
| Melting index (g/10min) | 3.0 | 1.2 | 2.8 |
| Tensile strength (MPa) | 41.0 | 32.3 | 45.2 |
| Elongation at break (%) | 670 | 264 | 502 |
| Modulus in flexure (MPa) | 1720 | 1956 | 1898 |
| Notched Izod impact strength (J/m) | 43 | 21.3 | 36.1 |
As can be seen from Table 6, add 40% calcium carbonate-filled polyacrylic mobility after packing lubrication master batch of the present invention greatly to increase, approach with virgin pp, processibility is improved; Mechanical property improves, and intensity, toughness are all improved, and particularly toughness is because the effect of toughner etc. in packing lubrication master batch, be greatly improved, the problem of having avoided too much filler that plastics are become fragile makes production cost decline simultaneously, makes it have more the competitiveness in market.
Claims (5)
1. a filling plastic lubricates master batch, it is characterized in that 100 parts of inorganic powders by mass, 20～100 parts of lubricants, 1～5 lubrication assistant dispersion agent, 0.1～3 part of coupling agent, the vector resin of 5～30 parts, the particle of 0～2 part of compound composition of functional agent, wherein said inorganic powder is that the inorganic powder by the inorganic powder of sheet and spherical or almost spherical is composited to be coated with intercalation mode in the ratio of 2:1～2:3, the inorganic powder of the spherical or almost spherical of part is coated on outside the kernel that the inorganic powder of sheet forms as shell, the inorganic powder of the spherical or almost spherical of part small particle size infiltrates sheet inorganic powder interlayer.
2. according to the lubricated master batch of a kind of filling plastic described in claim 1, the inorganic powder of the sheet described in it is characterized in that comprises one or more in polynite, kaolin, graphite, talcum powder, molybdenumdisulphide, mica, brucite, aluminium hydroxide, powder footpath/thickness rate 20～50, thickness 100～500nm.
3. a kind of filling plastic according to claim 1 lubricates master batch, it is characterized in that described inorganic powder spherical or almost spherical comprises one or more in barium sulfate, glass microballon, titanium dioxide, sulfurated lime, silica powder, Feldspar Powder, diameter of particle scope 1000～5000 orders.
4. according to the lubricated master batch of a kind of filling plastic described in claim 1, it is characterized in that described vector resin comprises that fusing point is 70 ℃～105 ℃, one or more in the Low Density Polyethylene of melting index 15～80g/10min, Atactic Polypropelene, ethene-vinyl acetate copolymer.
5. according to the lubricated master batch of a kind of filling plastic described in claim 1, it is characterized in that described functional agent is one or more in toughner, oxidation inhibitor, thermo-stabilizer, static inhibitor, UV light absorber.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3698470B2 (en) * | 1995-10-19 | 2005-09-21 | 東京インキ株式会社 | Processed pigment and color master batch production method |
| CN102040774B (en) * | 2010-12-20 | 2012-09-26 | 深圳市科聚新材料有限公司 | PP (polypropylene) filled masterbatch and method for preparing same |
| CN102690440B (en) * | 2012-06-07 | 2013-09-18 | 成都新柯力化工科技有限公司 | Plastic composite lubricating agent and preparation method thereof |
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Effective date of registration: 20221130 Address after: No. 80, Jingang Avenue, Dagang, New District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: OPTA POLYMER JIANGSU Co.,Ltd. Address before: No. 7, Tonggang Road, Jingang Avenue, Zhenjiang New District, Zhenjiang City, Jiangsu Province, 212000 Patentee before: APT POLYMER JIANGSU CO.,LTD. |