CN110903487A - Organic silicon slipping agent for polyolefin, slipping master batch and application thereof - Google Patents
Organic silicon slipping agent for polyolefin, slipping master batch and application thereof Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J2487/00—Characterised by the use of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
Abstract
The invention discloses an organic silicon slipping agent for polyolefin, a slipping master batch and application thereof, wherein the organic silicon slipping agent for polyolefin is mainly prepared by fully reacting maleic anhydride modified polyolefin and monohydroxy terminated silicone oil; the average molecular weight of the monohydroxy terminated silicone oil is 1300-3100; the acid value of the maleic anhydride-modified polyolefin is 10mg KOH/g or more. The organic silicon slipping master batch for polyolefin can be further prepared by reacting maleic anhydride modified polyolefin with monohydroxy terminated silicone oil to form the organic silicon slipping agent with polyolefin as a main chain and organic silicon as a branched chain.
Description
Technical Field
The invention relates to the technical field of polyolefin films, and particularly relates to an organic silicon slipping agent for polyolefin, a slipping master batch and application thereof.
Background
The polyolefin film has high surface friction coefficient, the surface abrasion is easy to lose luster due to the friction with equipment in the processing process, and the film is easy to adhere or adhere to a roller by itself to cause the problems of wrinkling, deformation and the like of products when the friction coefficient is high. To avoid this problem, it is generally necessary to add a slip agent which can migrate to the surface of the film to form a slip layer, thereby reducing the coefficient of friction of the film.
The existing slipping agents include erucamide, paraffin, and organosiloxane slipping agents. Erucamide, paraffin and the like are commonly used slipping agents, are uniformly distributed in a polymer matrix during extrusion, and migrate to the surface to form a polymer brush when being cooled, so that the friction coefficient is effectively reduced. The molecular weight of the organosiloxane slipping agent is large, the friction coefficient is reduced mainly by migrating to the surface of the material during melt extrusion, and no migration and precipitation exist in the using process. However, the organosiloxane slipping agent is difficult to disperse uniformly in the polyolefin material, resulting in a difference and instability of the friction coefficient of the film surface. Chinese patent application CN106893508A discloses a block type silicone copolymer for a surface protective film, specifically a polysiloxane-polyolefin block copolymer; compared with the organic siloxane slipping agent, the dispersibility of the block type organic silicon copolymer in the polyolefin base material is improved to a certain extent, but the effect of reducing the surface friction coefficient is insufficient, and the dispersibility needs to be further improved so as to better meet the production requirement.
Therefore, it is necessary to develop a slipping agent for polyolefin, which can effectively reduce the surface friction coefficient, can avoid migration and precipitation, has little influence on haze and transparency, and can make the friction coefficients of the film surfaces closer to each other.
Disclosure of Invention
The invention provides an organosilicon slipping agent for polyolefin, which is used for preparing polyolefin films, can effectively reduce the surface friction coefficient of the films, can avoid migration and precipitation, has small influence on the haze and the transparency of the films, can hardly change the surface friction coefficient of the prepared films along with time, has good dispersibility in polyolefin base materials, and has relatively similar friction coefficients on various parts of the surfaces of the prepared films.
The invention also aims to provide a preparation method of the organic silicon slipping agent for polyolefin.
The invention also aims to provide the organic silicon smooth master batch for the polyolefin.
The invention also aims to provide a preparation method of the organic silicon smooth master batch for polyolefin.
The invention also aims to provide the application of the organic silicon smooth master batch for polyolefin in preparing polyolefin films.
In order to solve the technical problems, the invention adopts the technical scheme that:
the organic silicon slipping agent for the polyolefin is mainly prepared by fully reacting maleic anhydride modified polyolefin with monohydroxy terminated silicone oil;
the average molecular weight of the monohydroxy terminated silicone oil is 1300-3100;
the acid value of the maleic anhydride modified polyolefin is more than 10mg KOH/g; the molar ratio of hydroxyl in the monohydroxy terminated silicone oil to maleic anhydride groups in the maleic anhydride modified polyolefin is less than or equal to 2: 1 and is more than or equal to
Wherein p represents the maleic anhydride-modified polyolefinAcid value of the hydrocarbon.
Maleic anhydride modified polyolefins are also known as polyolefin grafted maleic anhydride. Monohydroxy-terminated silicone oils are also known as monohydroxy-terminated polydimethylsiloxanes.
In the application, after the maleic anhydride modified polyolefin and the monohydroxy terminated silicone oil react, an organosilicon slipping agent with polyolefin as a main chain and organosilicon as a branched chain, namely a branched chain organosilicon copolymer, is formed. The polyolefin main chain of the synthesized organic silicon slipping agent has good compatibility with carrier resins such as polyethylene, polypropylene and the like, and can be uniformly dispersed in a polyolefin base material; during melt extrusion, under the action of the organosilicon chain segment, the organosilicon slipping agent migrates to the surface of the material, and the organosilicon chain segment forms a brush-like structure on the surface.
The brush-shaped structure formed by the organosilicon chain segment on the surface can endow the surface characteristics of the organosilicon compound on the surface of the film, and effectively reduce the surface friction coefficient of the film; meanwhile, the brush-shaped structure can be fixed and uniformly distributed on the surface of the film through the polyolefin main chain, migration and precipitation can be avoided, and the friction coefficients of all positions on the surface of the film are relatively similar.
It should be noted that the inventors have found that the choice of molecular weight and graft amount of the monohydroxy-terminated silicone oil is of critical importance. The monohydroxy silicone oil with a small molecular weight needs to be selected, namely the number average molecule of the monohydroxy terminated silicone oil needs to meet the condition of 1300-3100. The silicone oil with smaller molecular weight is selected to ensure that the siloxane chain segment is more uniformly distributed on the polyolefin main chain, thereby being beneficial to forming a brush-shaped structure, having good friction reducing effect and being beneficial to stabilizing the friction coefficients of different positions of the film. If the molecular weight of the monohydroxy-terminated silicone oil is greater than 3100, the molecular weight is too large, and the silicone segment is long, which tends to curl and entangle, which is disadvantageous in forming a brush-like structure, and the friction-reducing effect is reduced. The monohydroxy-terminated silicone oil cannot be too small, and if the molecular weight of the monohydroxy-terminated silicone oil is less than 1300, the surface friction coefficient cannot be effectively reduced.
The grafting amount of the monohydroxy-terminated silicone oil is related to the content of maleic anhydride groups in the maleic anhydride-modified polyolefin and the amount of the monohydroxy-terminated silicone oil used. Maleic anhydride modified polyolefin for grafting monohydroxyThe content of maleic anhydride group of the radical-terminated silicone oil is in direct proportion to the acid value after hydrolysis. When the acid value is less than 10mg KOH/g, the acid value is too low, the amount of graftable hydroxy silicone oil is small, and the effect of reducing the coefficient of friction is not good. When the maleic anhydride modified polyolefin and the monohydroxy terminated silicone oil are reacted, the monohydroxy terminated silicone oil cannot be excessive; if the monohydroxy-terminated silicone oil is in excess, it is difficult to uniformly disperse the excess monohydroxy-terminated silicone oil in the polyolefin material. Therefore, the molar ratio of the hydroxyl in the monohydroxy terminated silicone oil to the maleic anhydride group in the maleic anhydride modified polyolefin is less than or equal to 2: 1. Meanwhile, in order to ensure the graft amount of the monohydroxy terminated silicone oil, for a certain mass of the maleic anhydride-modified polyolefin, the monohydroxy terminated silicone oil should be used in an amount that at least the maleic anhydride group in the mass of the maleic anhydride-modified polyolefin having an acid value of 10mg KOH/g can be consumed, i.e., the molar ratio of the monohydroxy terminated silicone oil to the maleic anhydride-modified polyolefin is not less than or equal to
Moreover, experimental studies show that, compared with block-type silicone copolymers, branched silicone copolymers can form a polymer brush structure, and thus can more effectively reduce the surface friction coefficient.
In conclusion, the organic silicon slipping agent can effectively reduce the surface friction coefficient of the film, can avoid migration and precipitation, has small influence on haze and transparency, the surface friction coefficient of the prepared film hardly changes along with time, and the organic silicon slipping agent has good dispersibility in polyolefin base materials and relatively similar friction coefficients at various positions on the surface of the prepared film.
The polyolefin is typically polyethylene or polypropylene.
The maleic anhydride modified polyolefin and the monohydroxy terminated silicone oil can be catalyzed by a catalyst to react. The catalyst can be one or the combination of more than two of zinc chloride, pyridine, anhydrous sodium ethoxide, p-toluenesulfonic acid and tetraisobutyl titanate.
Preferably, the acid value of the maleic anhydride modified polyolefin is 10-52 mg KOH/g. For example, the acid number of the maleic anhydride modified polyolefin may be 52, 26, 11, or 17mg KOH/g. If the acid value of the maleic anhydride modified polyolefin is moderate, the density of the grafted organic silicon chain segment is moderate, which is more beneficial to the uniform distribution of the organic silicon chain segment and more effectively avoids the problem of inconsistent friction coefficients of different positions of the film.
Preferably, the maleic anhydride modified polyolefin is maleic anhydride modified polypropylene.
Preferably, the molecular structural general formula of the maleic anhydride modified polyolefin is shown as the formula (I):
The maleic anhydride-modified polyolefin can be obtained commercially. For example, UMEX 1010, UMEX1001, UMEX 5200 and UMEX 5500 of sanyo chemical groups. The acid values of UMEX 1010, UMEX1001, UMEX 5200 and UMEX 5500 are 52, 26, 11 and 17mg KOH/g in sequence.
The monohydroxy-terminated silicone oil can be obtained commercially or can be prepared by those skilled in the art by reference to the prior art.
The invention also provides a preparation method of the organic silicon slipping agent for polyolefin, which comprises the following operations: adding maleic anhydride modified polyolefin, monohydroxy terminated silicone oil and a catalyst into a reaction vessel, heating to 120-150 ℃, reacting for 4-6 h, heating to 200-220 ℃, and reacting until the acid value is not changed, thereby obtaining the organic silicon slipping agent for polyolefin.
The invention also protects the organic silicon slipping master batch for polyolefin, which is prepared from the organic silicon slipping agent for polyolefin.
An organic silicon smooth master batch for polyolefin comprises the following components in percentage by weight: 45-70% of polyolefin resin, 20-35% of the organic silicon slipping agent for polyolefin, 0.2-1% of antioxidant, 8-20% of antistatic agent and 0.5-1.5% of hydrolysis-resistant stabilizer.
Preferably, the antioxidant is one or more of antioxidant 1010, antioxidant 1076 or antioxidant 168.
Preferably, the antistatic agent is polyethylene oxide and/or sodium polystyrene sulfonate.
Preferably, the anti-hydrolysis stabilizer is a carbodiimide anti-hydrolysis stabilizer. More preferably, the hydrolysis resistant stabilizer is hydrolysis resistant stabilizer S-7000 and/or hydrolysis resistant stabilizer S-9000. The ester group generated by the reaction of the maleic anhydride modified polyolefin and the monohydroxy terminated silicone oil is easy to hydrolyze, and the service life of the organic silicon smooth master batch is influenced. The carbodiimide hydrolysis-resistant stabilizer can remove acid and water and prevent autocatalytic degradation.
The invention also provides a preparation method of the organic silicon smooth master batch for polyolefin, which comprises the following steps:
s1, uniformly mixing the polyolefin with an organic silicon slipping agent, an antioxidant, an antistatic agent, an anti-hydrolysis stabilizer and polyolefin resin to obtain a mixed material;
and S2, mixing the mixed material obtained in the step S1 through an extruder, granulating and drying to obtain the organic silicon smooth master batch for polyolefin.
Preferably, in the step s1, the polyolefin is uniformly mixed with the organic silicon slipping agent, the antioxidant, the antistatic agent and the hydrolysis-resistant stabilizer, and then the polyolefin resin is added and uniformly mixed. Step S1 can be carried out in a high-speed mixer.
Preferably, step s2. the extruder is a twin-screw extruder.
Preferably, the temperature of the extruder is set to be 180-220 ℃, and the rotating speed of the screw is 300-500 rpm.
The application of the organic silicon smooth master batch for polyolefin in preparing the polyolefin film is also within the protection scope of the invention.
Preferably, the polyolefin film is a polyethylene film or a polypropylene film.
Compared with the prior art, the invention has the beneficial effects that:
the organic silicon slipping master batch for polyolefin can be further prepared by reacting maleic anhydride modified polyolefin with monohydroxy terminated silicone oil to form the organic silicon slipping agent with polyolefin as a main chain and organic silicon as a branched chain.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The raw materials in the examples are all commercially available;
in the examples and comparative examples, the maleic anhydride-modified polyolefins UMEX100 TS, UMEX 1010, UMEX1001, UMEX 5200 and UMEX 5500 used were obtained from Sanyo chemical Co., Ltd, and their acid values are shown in Table 1.
The monohydroxy terminated silicone oil is prepared according to the prior art, and has three specifications, namely ① average molecular weight 1300, viscosity 45cp (25 ℃), transparent colorless liquid with hydroxyl value of 43mgKOH/g, ② average molecular weight 3100, viscosity 78cp (25 ℃), transparent colorless liquid with hydroxyl value of 18mgKOH/g, ③ average molecular weight 4000, 97cp (25 ℃), transparent colorless liquid with hydroxyl value of 14 mgKOH/g.
TABLE 1 acid value of maleic anhydride-modified polyolefin
Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated.
Examples 1 to 5 and comparative examples 1 to 4
(1) Slipping agent
The raw material compositions of the silicone slipping agents of examples 1 to 5 and comparative examples 1 to 2 are shown in table 2, and the preparation methods are as follows:
adding maleic anhydride modified polyolefin, monohydroxy terminated silicone oil and a catalyst into a reaction kettle, heating to 120-150 ℃, reacting for 4-6 h, heating to 200-220 ℃, and reacting until the acid value is not changed, thereby obtaining the organic silicon slipping agent.
The silicone slipping agent of comparative example 3 was a silicone-polyethylene block copolymer slipping agent, designated slipping agent H, and the preparation method was as follows:
adding 100.0g of 1, 7-octadiene, 0.5g of Karstedt catalyst and 50g of toluene into a reaction kettle, introducing nitrogen, heating to 70 ℃, dropwise adding 121.0g of 1,1,3, 3-tetramethyldisiloxane, and finishing dropping within 5 hours; after the completion of the dropping, the reaction was continued at 80 ℃ for 3 hours. And distilling under reduced pressure to remove unreacted monomers and a toluene solvent, and removing the catalyst through silica gel to obtain the organosilicon-polyethylene block copolymer slipping agent.
The slip agent of comparative example 4 was synthesized from erucamide and polyethylene wax in combination with a shedding agent to produce silica.
TABLE 2 raw material composition (unit: parts by mass) of the silicone slipping agent of examples 1 to 5 and comparative examples 1 to 2
(2) Smooth master batch
The raw material compositions of the silicone slipping master batches of examples 1 to 5 and comparative examples 1 to 3 are shown in table 3, and the preparation method is as follows:
s1, adding an organic silicon slipping agent, an antioxidant, an antistatic agent and an anti-hydrolysis stabilizer into a high-speed mixer for fully mixing; adding polyolefin resin and mixing uniformly;
s2, adding the mixed material obtained in the step S1 into a double-screw extruder, setting the temperature of the extruder to be 180-220 ℃, setting the rotating speed of screws to be 300-500 rpm, and mixing, granulating and drying to obtain the organic silicon smooth master batch.
The composition of the raw material of the slip master batch of comparative example 4 is shown in table 3, and the preparation method is as follows:
s1, adding an erucamide slipping agent, a synthetic silica opening agent, a polyethylene wax dispersant, an antioxidant 1010, a sodium polystyrene sulfonate antistatic agent and polyolefin resin into a high-speed mixer, and uniformly mixing;
s2, adding the mixed material obtained in the step S1 into a double-screw extruder, setting the temperature of the extruder to be 180-220 ℃, setting the rotating speed of screws to be 300-500 rpm, and mixing, granulating and drying to obtain the organic silicon smooth master batch.
TABLE 3 raw material composition (mass percentage) of the slip master batch of examples 1 to 5 and comparative examples 1 to 4
(3) Polyolefin film
Preparing a PE film from the organic silicon smooth master batch of the examples 1-3 and the comparative example 1 according to the formula 1; the silicone slipping master batches of examples 4-5 and comparative examples 2-3 were used to prepare PP films according to formula 2, and the slipping master batch of comparative example 4 was used to prepare PP films according to formula 2. Formulations 1 and 2 are shown in table 4.
The preparation method of the polyolefin film comprises the following steps:
s1, weighing materials according to a formula, uniformly mixing in a high-speed mixer, feeding into a double-screw extruder, setting the temperature of the extruder to be 200 +/-10 ℃, setting the rotating speed of a screw to be 300rpm, and extruding and granulating through a mouth die and a granulator;
s2, blowing the granules into a film by a blow molding machine, wherein the film blowing temperature is 180 +/-10 ℃, and the blowing-up ratio is 2.0, so that the polyolefin film is obtained.
TABLE 4 polyolefin film formulation (mass percent)
| Formulation 1 | Formulation 2 | |
| LDPE | 47 | — |
| LLDPE | 38 | — |
| PP | — | 90 |
| Smooth master batch | 15 | 10 |
Performance testing
Polyolefin film performance testing: testing the friction coefficient of the plastic film according to GB 10006-1988, measuring the friction coefficients of 10 different positions of the film, and recording the range of the friction coefficients; the light transmittance and haze of the film before and after being placed at normal temperature for three months are tested according to GB/T2410-2008.
TABLE 5 Performance test of polyolefin films obtained in examples 1 to 5 and comparative examples 1 to 4
As can be seen from table 5, the static friction coefficients and the dynamic friction coefficients of the polyolefin films prepared from the organic silicon smooth master batches of examples 1 to 5 are all lower than 0.17 and lower than 0.13, the friction coefficients of different positions of the films are similar, and the friction coefficient change is small before and after the films are placed; the prepared PE film has the transparency of more than 88 percent and the haze of less than 5.5 percent, the prepared PP film has the transparency of more than 91 percent and the haze of less than 3 percent, and the transparency and the haze are basically unchanged after the PP film is placed for one month.
Furthermore, comparing comparative example 1 and example 1, it is known that when the acid value of the maleic anhydride modified polyolefin is low, that is, the content of the maleic anhydride group for grafting the monohydroxy-terminated silicone oil is low, since the number of the grafted silicone segment is small, even if the amount of the silicone slipping agent in the slipping master batch is increased, the effect of reducing the film friction coefficient is still poor, probably because when the number of the grafted silicone segment is small, the migration rate of the silicone slipping agent to the surface is slow during melt processing, resulting in low content of the silicone segment arranged on the surface and high friction coefficient.
As can be seen from comparative example 2 and example 4, the PP film obtained by using monohydroxy-terminated silicone oil having an average molecular weight of 4000 had a higher coefficient of friction than that obtained by using monohydroxy-terminated silicone oil having a molecular weight of 3100, because if the molecular weight of silicone oil is too large, the silicone segment is long, and tends to curl and wind, which is not favorable for forming a brush-like structure, and the friction-reducing effect is slightly poor.
Comparative example 3 adopts an organosilicon-polyethylene block copolymer as the slipping agent, and compared with example 5, the friction reducing effect of comparative example 3 is inferior to that of the organosilicon slipping agent which takes polyolefin as a main chain and organosilicon as a branched chain in example 5, because the slipping agent which takes organosilicon as the branched chain can form a brush-like structure on the surface of a film, and the friction coefficient is effectively reduced. Comparative example 4 using erucamide as the slip agent, the change of the friction coefficient of the polyolefin film at different positions was large, and after the polyolefin film was placed, an oily substance was precipitated on the surface, which resulted in increased haze, decreased transparency, and unstable and significantly decreased friction coefficient. Therefore, the organic silicon slipping agent is obviously superior to the slipping agents such as organic silicon-polyethylene block copolymer, erucamide and the like disclosed in the prior art.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The organic silicon slipping agent for polyolefin is characterized by being prepared by fully reacting maleic anhydride modified polyolefin with monohydroxy terminated silicone oil;
the average molecular weight of the monohydroxy terminated silicone oil is 1300-3100;
the acid value of the maleic anhydride modified polyolefin is more than 10mg KOH/g; the molar ratio of hydroxyl in the monohydroxy terminated silicone oil to maleic anhydride groups in the maleic anhydride modified polyolefin is less than or equal to 2: 1 and is more than or equal to
Wherein p represents an acid value of the maleic anhydride-modified polyolefin.
2. The silicone slipping agent for polyolefin according to claim 1, wherein the acid value of the maleic anhydride-modified polyolefin is 10 to 52mg KOH/g.
3. The silicone slipping agent for polyolefin according to claim 1, wherein the molecular structural formula of the maleic anhydride-modified polyolefin is represented by formula (i):
4. The preparation method of the silicone slipping agent for polyolefin according to any one of claims 1 to 3, characterized by comprising the following operations: adding maleic anhydride modified polyolefin, monohydroxy terminated silicone oil and a catalyst into a reaction vessel, heating to 120-150 ℃, reacting for 4-6 h, heating to 200-220 ℃, and reacting until the acid value is not changed, thereby obtaining the organic silicon slipping agent for polyolefin.
5. The organic silicon smooth master batch for the polyolefin is characterized by comprising the following components in percentage by weight: 45-70% of polyolefin resin, 20-35% of organic silicon slipping agent for polyolefin as claimed in any one of claims 1-3, 0.2-1% of antioxidant, 8-20% of antistatic agent and 0.5-1.5% of hydrolysis-resistant stabilizer.
6. The silicone slipping masterbatch for polyolefins according to claim 5, wherein the anti-hydrolysis stabilizer is carbodiimide anti-hydrolysis stabilizer.
7. The method for preparing the silicone slipping masterbatch for polyolefin according to claim 5 or 6, comprising the steps of:
s1, uniformly mixing the polyolefin with an organic silicon slipping agent, an antioxidant, an antistatic agent, an anti-hydrolysis stabilizer and polyolefin resin to obtain a mixed material;
and S2, mixing the mixed material obtained in the step S1 through an extruder, granulating and drying to obtain the organic silicon smooth master batch for polyolefin.
8. The preparation method according to claim 7, wherein in step S1, the polyolefin is uniformly mixed with the silicone slipping agent, the antioxidant, the antistatic agent and the hydrolysis-resistant stabilizer, and then the polyolefin resin is added and uniformly mixed.
9. Use of the silicone slipping master batch for polyolefin according to claim 5 or 6 for producing polyolefin films.
10. Use according to claim 9, wherein the polyolefin film is a polyethylene film or a polypropylene film.
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| CN114619733A (en) * | 2022-03-17 | 2022-06-14 | 金华市联宾塑料制品有限公司 | High-smoothness PE composite film for ultrahigh-speed packaging |
| CN115286861A (en) * | 2022-09-16 | 2022-11-04 | 东莞市迪彩塑胶五金有限公司 | Low-friction opening agent master batch for plastic film and preparation method thereof |
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| CN104204115A (en) * | 2012-03-28 | 2014-12-10 | 北欧化工公司 | Extrusion coated polymer layer with reduced coefficient of friction |
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| US3445389A (en) * | 1965-03-29 | 1969-05-20 | Dow Corning | Silicone lubricant |
| CN101921398A (en) * | 2010-07-02 | 2010-12-22 | 陕西科技大学 | Anionic organic silicon surfactant and preparation method thereof |
| CN104204115A (en) * | 2012-03-28 | 2014-12-10 | 北欧化工公司 | Extrusion coated polymer layer with reduced coefficient of friction |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113150448A (en) * | 2021-02-07 | 2021-07-23 | 汕头市贝斯特科技有限公司 | Temperature-resistant smooth master batch for solvent-free composite membrane and preparation method thereof |
| CN113150448B (en) * | 2021-02-07 | 2022-12-27 | 汕头市贝斯特科技有限公司 | Temperature-resistant smooth master batch for solvent-free composite membrane and preparation method thereof |
| CN114619733A (en) * | 2022-03-17 | 2022-06-14 | 金华市联宾塑料制品有限公司 | High-smoothness PE composite film for ultrahigh-speed packaging |
| CN115286861A (en) * | 2022-09-16 | 2022-11-04 | 东莞市迪彩塑胶五金有限公司 | Low-friction opening agent master batch for plastic film and preparation method thereof |
| CN115286861B (en) * | 2022-09-16 | 2024-01-26 | 东莞市迪彩塑胶五金有限公司 | Low-friction opening agent master batch for plastic film and preparation method thereof |
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