CN111393750A - Flame-retardant wear-resistant PP tearing film and preparation method thereof - Google Patents
Flame-retardant wear-resistant PP tearing film and preparation method thereof Download PDFInfo
- Publication number
- CN111393750A CN111393750A CN202010364209.1A CN202010364209A CN111393750A CN 111393750 A CN111393750 A CN 111393750A CN 202010364209 A CN202010364209 A CN 202010364209A CN 111393750 A CN111393750 A CN 111393750A
- Authority
- CN
- China
- Prior art keywords
- parts
- flame
- mixture
- modified
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
Abstract
The invention discloses a flame-retardant wear-resistant PP tearing film which is prepared from the following raw materials in parts by weight: 135-150 parts of modified PP, 0.2-0.4 part of antioxidant, 20-40 parts of mica, 5-8 parts of nano silicon dioxide, 0.5-2 parts of calcium stearate and 1-2 parts of polyethylene wax; the invention also discloses a preparation method of the flame-retardant wear-resistant PP tearing film; the modified PP has excellent flame retardant property, the nano silicon dioxide can endow the modified PP with wear resistance, and the technical problems that the existing PP tearing film has excellent tensile strength but poor flame retardant property, and the traditional carbon forming agent contains a large amount of hydroxyl groups and is easy to absorb water during processing, so that the compatibility is poor when the carbon forming agent is mixed with PP, the carbon forming agent in the prepared modified PP is easy to separate out, and the flame retardant property of the finally prepared tearing film is influenced are solved.
Description
Technical Field
The invention belongs to the technical field of packaging materials, and particularly relates to a flame-retardant wear-resistant PP tearing film and a preparation method thereof.
Background
The tearing film is formed by stretching a polypropylene blown film, has strong tensile strength, soft hand feeling and texture, is nontoxic, tasteless and pollution-free, and has attractive and elegant appearance and bright color; also called PP strapping rope and PP tearing film. The tearing film is generally made of polypropylene wire-drawing resin, and has good plasticity, strong breaking tension and good tensile impact property.
The tearing film can be directly used as a binding rope for industrial and agricultural industries and can replace nylon wires, cotton wires, micro-nylon wires and the like, and can be widely applied to the operations of binding and bundling in the market fields of cement bags, flour bags, flexible containers, clothes, shoe industry, craft gifts, hand bags, toys, agriculture, animal husbandry and the like.
The traditional carbon forming agent contains a large amount of hydroxyl and is easy to absorb water during processing, so that the compatibility is poor when the carbon forming agent is mixed with PP, the carbon forming agent in the prepared modified PP is easy to separate out, and the flame retardant property of the finally prepared tearing film is influenced.
The invention Chinese patent CN104788813A discloses a PP tearing film and a preparation method thereof, the PP tearing film comprises PP, an antioxidant, polyethylene glycol, PE, EBS, mica, nano silicon dioxide, lead stearate, polyethylene wax and L DPE as raw materials, the tensile strength of the product is 190-400 MPa, the breaking elongation is 300-400%, the product has small density, good toughness, good wear resistance, high tensile strength, 16-20MPa of bending strength, 0.4-0.6GPa of bending modulus, good heat resistance and good fluidity, the raw materials are simple and easy to obtain, the preparation method is simple, and the PP tearing film can be widely produced and continuously replace the existing materials.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a flame-retardant wear-resistant PP tearing film and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
the existing PP tearing film has excellent tensile strength but poor flame retardant property, and the traditional carbon forming agent contains a large amount of hydroxyl and is easy to absorb water during processing, so that the compatibility is poor when the carbon forming agent is mixed with PP, so that the carbon forming agent in the prepared modified PP is easy to separate out, and the flame retardant property of the finally prepared tearing film is influenced.
The purpose of the invention can be realized by the following technical scheme:
the flame-retardant wear-resistant PP tearing film is prepared from the following raw materials in parts by weight: 135-150 parts of modified PP, 0.2-0.4 part of antioxidant, 20-40 parts of mica, 5-8 parts of nano silicon dioxide, 0.5-2 parts of calcium stearate and 1-2 parts of polyethylene wax;
the modified PP is prepared by the following method:
step S1, adding phosphorus oxychloride into acetonitrile, heating in a water bath at 50-60 ℃, stirring at a constant speed, adding PEPA, stirring at a constant speed until the solution is clear, then heating to 75-80 ℃, refluxing for 15-18h, stopping the reaction, filtering while hot to obtain a compound A, and controlling the weight ratio of the phosphorus oxychloride to the acetonitrile to the PEPA to be 1: 5: 2.
Step S2, adding the compound A prepared in the step S1 into acetonitrile, heating in a water bath at 45-50 ℃ and stirring at a constant speed until the compound A is completely dissolved, adding hydroquinone, stirring at a rotating speed of 120r/min for 30-45min, heating to 65 ℃, keeping the temperature for 30min, heating to 85-90 ℃, reacting at the temperature for 3h, cooling, filtering, washing with absolute ethyl alcohol for three times to prepare a carbon forming agent, and controlling the weight ratio of the compound A, the acetonitrile and the hydroquinone to be 1: 2: 0.1-0.2;
and S3, uniformly mixing the carbonizing agent prepared in the step S2 and ammonium polyphosphate, adding PP into the mixture, mixing and rolling the mixture in an open mill for 15-20min, carrying out hot pressing at the temperature of 150-160 ℃, and carrying out cold pressing to obtain the modified PP.
Adding phosphorus oxychloride and PEPA into acetonitrile in step S1, allowing the phosphorus oxychloride and PEPA to react, substituting hydroxyl on the PEPA with chlorine on the phosphorus oxychloride to generate a substitution reaction, generating a compound A, then adding the compound A into the acetonitrile in step S2, then adding hydroquinone, allowing the hydroquinone to react with the compound A, substituting chlorine atoms on the compound A with hydroquinone, preparing a carbon forming agent, and then mixing and mixing the carbon forming agent, ammonium polyphosphate and PP in step S3 to obtain modified PP; the carbonizing agent can endow PP with excellent flame retardant performance, when modified PP burns, the ammonium polyphosphate can promote the carbonizing agent to form a compact carbon layer capable of blocking heat and combustible gas, then the carbonizing agent is decomposed and reacts with the ammonium polyphosphate to generate water vapor and ammonia gas, the flame retardant performance of the carbonizing agent is further enhanced, and the carbonizing agent does not contain hydroxyl, so that the polarity of the carbonizing agent is reduced, and the carbonizing agent has larger molecular weight, and can be well compatible with PP.
Further, the antioxidant is one or two of antioxidant 168 and antioxidant 1010.
Further, PEPA was added in three times in step S1, and the amount of PEPA added each time was controlled to be 1: 1.
Further, in step S3, the weight ratio of the carbon forming agent to the ammonium polyphosphate to the PP is controlled to be 1: 3.
A preparation method of a flame-retardant wear-resistant PP tearing film comprises the following steps:
firstly, sequentially adding modified PP, an antioxidant, mica and calcium stearate into a stirrer, controlling the stirring speed at 240-70 ℃ and the stirring temperature at 60-70 ℃, and premixing for 10-15min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85-90 ℃, and mixing the mixture for 5-10min at the rotating speed of 400-450 r/min;
and thirdly, transferring the PP tearing film to a single-screw extruder after mixing, controlling the temperature of the extruder to be 190 ℃, 200 ℃, 210 ℃, 220 ℃, 230 ℃ and 240 ℃, the temperature of the head to be 250 ℃, the temperature of the neck mold to be 200 ℃ and the stretching ratio to be 6-8 times, and obtaining the flame-retardant and wear-resistant PP tearing film.
The invention has the beneficial effects that:
according to the flame-retardant wear-resistant PP tearing film, modified PP and nano silicon dioxide are used as raw materials, the modified PP has excellent flame retardant property, the nano silicon dioxide can endow the modified PP with wear resistance, phosphorus oxychloride and PEPA are added into acetonitrile in step S1 in the preparation process, the phosphorus oxychloride and PEPA react, hydroxyl groups on the PEPA are replaced by chlorine on the phosphorus oxychloride, a substitution reaction is carried out, a compound A is generated, then the compound A is added into the acetonitrile in step S2, hydroquinone is added, the hydroquinone reacts with the compound A, chlorine atoms on the compound A are replaced by hydroquinone, a carbon forming agent is prepared, and then the carbon forming agent, ammonium polyphosphate and PP are mixed and mixed in step S3, so that the modified PP is prepared; the carbonizing agent can endow PP with excellent flame retardant performance, when modified PP burns, the ammonium polyphosphate can promote the carbonizing agent to form a compact carbon layer capable of blocking heat and combustible gas, then the carbonizing agent is decomposed and reacts with the ammonium polyphosphate to generate water vapor and ammonia gas, so that the flame retardant performance of the carbonizing agent is further enhanced, and the carbonizing agent does not contain hydroxyl, so that the polarity of the carbonizing agent is reduced, and the carbonizing agent has larger molecular weight, so that the carbonizing agent can be well compatible with PP; the technical problems that the existing PP tearing film has excellent tensile strength but poor flame retardant property, and the traditional carbon forming agent contains a large amount of hydroxyl and is easy to absorb water during processing, so that the carbon forming agent is poor in compatibility when being mixed with PP, so that the carbon forming agent in the prepared modified PP is easy to separate out, and the flame retardant property of the finally prepared tearing film is influenced are solved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The flame-retardant wear-resistant PP tearing film is prepared from the following raw materials in parts by weight: 135 parts of modified PP, 0.2 part of antioxidant 168, 20 parts of mica, 5 parts of nano silicon dioxide, 0.5 part of calcium stearate and 1 part of polyethylene wax;
firstly, sequentially adding modified PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85 ℃, and mixing the mixture for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
The modified PP is prepared by the following method:
step S1, adding phosphorus oxychloride into acetonitrile, heating in a water bath at 50 ℃ and stirring at a constant speed, adding PEPA, stirring at a constant speed until the solution is clear, then heating to 75 ℃, refluxing for 15h to stop the reaction, filtering while hot to obtain a compound A, and controlling the weight ratio of the phosphorus oxychloride to the acetonitrile to the PEPA to be 1: 5: 2.
And S2, adding the compound A prepared in the step S1 into acetonitrile, heating in a water bath at 45 ℃ and stirring at a constant speed until the compound A is completely dissolved, adding hydroquinone, stirring at a rotating speed of 120r/min for 30min, heating to 65 ℃, preserving heat at the temperature for 30min, heating to 85 ℃, reacting for 3h at the temperature, cooling, filtering, washing with absolute ethyl alcohol for three times to prepare a carbon forming agent, and controlling the weight ratio of the compound A, the acetonitrile and the hydroquinone to be 1: 2: 0.1.
Step S3, uniformly mixing the carbonizing agent prepared in the step S2 and ammonium polyphosphate, adding PP into the mixture, mixing and rolling the mixture in an open mill for 15min, then carrying out hot pressing at the temperature of 150 ℃ and 160 ℃, and then carrying out cold pressing to prepare the modified PP, wherein the weight ratio of the carbonizing agent to the ammonium polyphosphate to the PP is controlled to be 1: 3.
Example 2
The flame-retardant wear-resistant PP tearing film is prepared from the following raw materials in parts by weight: 140 parts of modified PP, 0.3 part of antioxidant 168, 25 parts of mica, 6 parts of nano silicon dioxide, 1 part of calcium stearate and 1 part of polyethylene wax;
firstly, sequentially adding modified PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85 ℃, and mixing the mixture for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
The rest is the same as example 1.
Example 3
The flame-retardant wear-resistant PP tearing film is prepared from the following raw materials in parts by weight: 145 parts of modified PP, 0.3 part of antioxidant 168, 35 parts of mica, 7 parts of nano silicon dioxide, 1.5 parts of calcium stearate and 2 parts of polyethylene wax;
firstly, sequentially adding modified PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85 ℃, and mixing the mixture for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
The rest is the same as example 1.
Example 4
The flame-retardant wear-resistant PP tearing film is prepared from the following raw materials in parts by weight: 150 parts of modified PP, 0.4 part of antioxidant 168, 40 parts of mica, 8 parts of nano silicon dioxide, 2 parts of calcium stearate and 2 parts of polyethylene wax;
firstly, sequentially adding modified PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85 ℃, and mixing the mixture for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
The rest is the same as example 1.
Comparative example 1
This comparative example, which was prepared by replacing modified PP with PP as compared to example 1, was prepared as follows:
firstly, sequentially adding PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85 ℃, and mixing the mixture for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
Comparative example 2
Compared with example 1, the preparation method of the comparative example is as follows without adding nano silicon dioxide:
firstly, sequentially adding modified PP, an antioxidant 168, mica and calcium stearate into a stirrer, controlling the stirring speed at 240r/min and the stirring temperature at 60 ℃, and premixing for 10min to prepare a mixture;
secondly, adding polyethylene wax into the mixture obtained in the first step, heating to 85 ℃, and mixing for 5min at the rotating speed of 400 r/min;
and thirdly, transferring the PP tearing film into a single-screw extruder after mixing is finished, and controlling the temperature of the extruder to be 180 ℃, 190 ℃, 200 ℃, 210 ℃, 230 ℃, the head temperature to be 210 ℃, the neck mold temperature to be 200 ℃ and the stretching ratio to be 6 times to obtain the flame-retardant and wear-resistant PP tearing film.
Comparative example 3
This comparative example is a wear resistant PP tear film in the market.
The flame retardant properties, abrasion resistance and tensile properties of examples 1 to 4 and comparative examples 1 to 3 were measured, and the results are shown in the following table;
the flame retardant property is that the vertical burning test is carried out according to the standard of ANS L-U L94-2009;
wear resistance coefficient: GB/T10006-1988.
| Flame retardant rating | Tensile Strength (MPa) | Coefficient of friction | |
| Example 1 | V0 | 20.1 | 0.30 |
| Example 2 | V0 | 20.2 | 0.30 |
| Example 3 | V0 | 20.3 | 0.31 |
| Example 4 | V0 | 20.2 | 0.29 |
| Comparative example 1 | V2 | 20.1 | 0.30 |
| Comparative example 2 | V0 | 19.5 | 0.35 |
| Comparative example 3 | V2 | 15.6 | 0.32 |
From the above table, it can be seen that examples 1-4 have a flame retardant rating of V0, a tensile strength of 20.1-20.3MPa, and a coefficient of friction of 0.29-0.30; comparative examples 1-3 had flame retardant ratings of V2-V0, tensile strengths of 15.6-20.1MPa, and coefficients of friction of 0.30-0.35. The ammonium polyphosphate can promote the carbon forming agent to form a compact carbon layer capable of blocking heat and combustible gas, then the carbon forming agent is decomposed and reacts with the ammonium polyphosphate to generate water vapor and ammonia gas, so that the flame retardant property of the composite material is further enhanced, and the carbon forming agent does not contain hydroxyl, so that the polarity of the composite material is reduced, and the composite material has larger molecular weight, and can be well compatible with PP; the technical problems that the existing PP tearing film has excellent tensile strength but poor flame retardant property, and the traditional carbon forming agent contains a large amount of hydroxyl and is easy to absorb water during processing, so that the carbon forming agent is poor in compatibility when being mixed with PP, so that the carbon forming agent in the prepared modified PP is easy to separate out, and the flame retardant property of the finally prepared tearing film is influenced are solved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (5)
1. The flame-retardant wear-resistant PP tearing film is characterized by being prepared from the following raw materials in parts by weight: 135-150 parts of modified PP, 0.2-0.4 part of antioxidant, 20-40 parts of mica, 5-8 parts of nano silicon dioxide, 0.5-2 parts of calcium stearate and 1-2 parts of polyethylene wax;
the modified PP is prepared by the following method:
step S1, adding phosphorus oxychloride into acetonitrile, heating in a water bath at 50-60 ℃, stirring at a constant speed, adding PEPA, stirring at a constant speed until the solution is clear, then heating to 75-80 ℃, refluxing for 15-18h, stopping the reaction, filtering while hot to obtain a compound A, and controlling the weight ratio of the phosphorus oxychloride to the acetonitrile to the PEPA to be 1: 5: 2;
step S2, adding the compound A prepared in the step S1 into acetonitrile, heating in a water bath at 45-50 ℃ and stirring at a constant speed until the compound A is completely dissolved, adding hydroquinone, stirring at a rotating speed of 120r/min for 30-45min, heating to 65 ℃, keeping the temperature for 30min, heating to 85-90 ℃, reacting at the temperature for 3h, cooling, filtering, washing with absolute ethyl alcohol for three times to prepare a carbon forming agent, and controlling the weight ratio of the compound A, the acetonitrile and the hydroquinone to be 1: 2: 0.1-0.2;
and S3, uniformly mixing the carbonizing agent prepared in the step S2 and ammonium polyphosphate, adding PP into the mixture, mixing and rolling the mixture in an open mill for 15-20min, carrying out hot pressing at the temperature of 150-160 ℃, and carrying out cold pressing to obtain the modified PP.
2. The flame retardant abrasion resistant PP tear film of claim 1 wherein the antioxidant is one or both of antioxidant 168 and antioxidant 1010.
3. The flame retardant abrasion resistant PP tear film according to claim 1 wherein the PEPA is added in three times in step S1, wherein each addition is controlled to be 1: 1.
4. The flame retardant abrasion resistant PP tear film of claim 1 wherein the weight ratio of the char-forming agent, ammonium polyphosphate and PP is controlled to be 1: 3 in step S3.
5. The preparation method of the flame-retardant wear-resistant PP tear film according to claim 1, comprising the steps of:
firstly, sequentially adding modified PP, an antioxidant, mica and calcium stearate into a stirrer, controlling the stirring speed at 240-70 ℃ and the stirring temperature at 60-70 ℃, and premixing for 10-15min to prepare a mixture;
step two, uniformly mixing the nano silicon dioxide and the polyethylene wax, adding the mixture into the mixture obtained in the step one, heating the mixture to 85-90 ℃, and mixing the mixture for 5-10min at the rotating speed of 400-450 r/min;
and thirdly, transferring the PP tearing film to a single-screw extruder after mixing, controlling the temperature of the extruder to be 190 ℃, 200 ℃, 210 ℃, 220 ℃, 230 ℃ and 240 ℃, the temperature of the head to be 250 ℃, the temperature of the neck mold to be 200 ℃ and the stretching ratio to be 6-8 times, and obtaining the flame-retardant and wear-resistant PP tearing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364209.1A CN111393750A (en) | 2020-04-30 | 2020-04-30 | Flame-retardant wear-resistant PP tearing film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364209.1A CN111393750A (en) | 2020-04-30 | 2020-04-30 | Flame-retardant wear-resistant PP tearing film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111393750A true CN111393750A (en) | 2020-07-10 |
Family
ID=71437413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010364209.1A Pending CN111393750A (en) | 2020-04-30 | 2020-04-30 | Flame-retardant wear-resistant PP tearing film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111393750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675844A (en) * | 2020-07-30 | 2020-09-18 | 安徽华电线缆股份有限公司 | Cross-linked polyethylene insulated flame-retardant power cable for rail transit |
| CN111851128A (en) * | 2020-07-28 | 2020-10-30 | 太和县昌达工贸有限公司 | Air-permeable uniform anti-fouling non-woven fabric mesh belt and preparation method thereof |
| CN114959993A (en) * | 2022-06-28 | 2022-08-30 | 界首市宏利塑料股份有限公司 | Wear-resistant woven bag and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788813A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | PP tearing film and preparation method thereof |
| CN105542160A (en) * | 2015-12-15 | 2016-05-04 | 华南理工大学 | Single-component phosphor-nitrogen double-ring cage-shaped macromolecular intumescent flame retardant as well as preparation method and application thereof |
| CN105924673A (en) * | 2016-06-14 | 2016-09-07 | 常州大学 | Flame retardant containing double-cage structure and having antioxidation function and preparation method |
| CN106117600A (en) * | 2016-07-01 | 2016-11-16 | 中国科学院山西煤炭化学研究所 | Phosphonium flame retardant and synthetic method and the application in hard polyurethane foam |
| CN107325339A (en) * | 2017-08-01 | 2017-11-07 | 界首市宏利塑料有限公司 | Filler and preparation method thereof used in one kind lifting polybag tensile strength |
-
2020
- 2020-04-30 CN CN202010364209.1A patent/CN111393750A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788813A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | PP tearing film and preparation method thereof |
| CN105542160A (en) * | 2015-12-15 | 2016-05-04 | 华南理工大学 | Single-component phosphor-nitrogen double-ring cage-shaped macromolecular intumescent flame retardant as well as preparation method and application thereof |
| CN105924673A (en) * | 2016-06-14 | 2016-09-07 | 常州大学 | Flame retardant containing double-cage structure and having antioxidation function and preparation method |
| CN106117600A (en) * | 2016-07-01 | 2016-11-16 | 中国科学院山西煤炭化学研究所 | Phosphonium flame retardant and synthetic method and the application in hard polyurethane foam |
| CN107325339A (en) * | 2017-08-01 | 2017-11-07 | 界首市宏利塑料有限公司 | Filler and preparation method thereof used in one kind lifting polybag tensile strength |
Non-Patent Citations (1)
| Title |
|---|
| 黄思雯: "膨胀型阻燃剂的制备及阻燃聚丙烯研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851128A (en) * | 2020-07-28 | 2020-10-30 | 太和县昌达工贸有限公司 | Air-permeable uniform anti-fouling non-woven fabric mesh belt and preparation method thereof |
| CN111675844A (en) * | 2020-07-30 | 2020-09-18 | 安徽华电线缆股份有限公司 | Cross-linked polyethylene insulated flame-retardant power cable for rail transit |
| CN114959993A (en) * | 2022-06-28 | 2022-08-30 | 界首市宏利塑料股份有限公司 | Wear-resistant woven bag and preparation method thereof |
| CN114959993B (en) * | 2022-06-28 | 2024-03-22 | 界首市宏利塑料股份有限公司 | Wear-resistant woven bag and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111393750A (en) | Flame-retardant wear-resistant PP tearing film and preparation method thereof | |
| FI102288B (en) | Starch - based biodegradable products and method for their preparation | |
| CN107973976B (en) | High-impact-resistance high-gloss spray-free PP/PETG alloy material and preparation method thereof | |
| WO2014015611A1 (en) | Biodegradable temperature resistant material containing fiber base and polylactic acid and method for preparing same | |
| CN107057193A (en) | A kind of high temperature resistant type Polywoven Bag and preparation method thereof | |
| CN108276640B (en) | Bidirectional easy-tearing casting PE film and preparation method thereof | |
| CN111286105B (en) | Low-glossiness flame-retardant polyethylene material and preparation method thereof | |
| CN102417645A (en) | Production method of inflaming retarding stone paper | |
| CN108623875A (en) | A kind of High-strength air-permeable film composite material and preparation method | |
| WO2023045850A1 (en) | High-toughness composition of semi-aromatic carbon dioxide-based copolymer and preparation method therefor | |
| CN110527179A (en) | A kind of softness polyethylene film master batch and preparation method thereof | |
| CN103773042B (en) | A kind of bamboo powder plastic-wood section and preparation method thereof | |
| CN112521680A (en) | Antistatic polyethylene bag and preparation method thereof | |
| CN110698851B (en) | High-toughness spraying-free polyamide 11 material and preparation method thereof | |
| CN113249977A (en) | Coating and scraping method high-oxygen-index automotive interior PVC composite fabric and preparation method thereof | |
| CN112778608A (en) | Functional color master batch and preparation method thereof | |
| CN108623916A (en) | A kind of heat-resisting PP plastics of the halogen-free flameproof of environment-friendly degradable and preparation method thereof | |
| CN113563663B (en) | Fireproof low-smoke halogen-free soft material and preparation method thereof | |
| CN107383299A (en) | One kind is used to manufacture ecological floor modified urea-formaldehyde resin and preparation method thereof | |
| KR100730835B1 (en) | Composition for production flame retardant insulating material including micro capsulated flame retardant supplement | |
| CN113817245A (en) | Environment-friendly flame-retardant TPO (thermoplastic polyolefin) macromolecular waterproof coiled material and preparation method thereof | |
| US4260534A (en) | Asbestos-free vinyl floor tile composition and method for its manufacture | |
| CN112662118A (en) | Halogen-free flame-retardant ABS resin composition containing nano-scale flame retardant and preparation method thereof | |
| KR102629154B1 (en) | Synthetic wood with enhanced durability and manufacturing method therefor | |
| CN108034139A (en) | A kind of antiultraviolet Polywoven Bag composition of raw materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |