CN118256070B - Plastic bottle and bottle blank extrusion process thereof - Google Patents
Plastic bottle and bottle blank extrusion process thereof Download PDFInfo
- Publication number
- CN118256070B CN118256070B CN202410683550.1A CN202410683550A CN118256070B CN 118256070 B CN118256070 B CN 118256070B CN 202410683550 A CN202410683550 A CN 202410683550A CN 118256070 B CN118256070 B CN 118256070B
- Authority
- CN
- China
- Prior art keywords
- silicon dioxide
- plastic bottle
- nano silicon
- bottle
- parts
- 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.)
- Active
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 70
- 229920003023 plastic Polymers 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001125 extrusion Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 148
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 54
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 49
- 229920005989 resin Polymers 0.000 claims abstract description 49
- 239000002994 raw material Substances 0.000 claims abstract description 29
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims abstract description 26
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical compound CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 claims abstract description 26
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 claims abstract description 23
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 238000000071 blow moulding Methods 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000003999 initiator Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 19
- 238000002360 preparation method Methods 0.000 description 13
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 12
- 239000011112 polyethylene naphthalate Substances 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 125000004185 ester group Chemical group 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polyethylene naphthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of compositions of high molecular compounds, and particularly discloses a plastic bottle and a bottle blank extrusion process thereof. The plastic bottle is obtained by adopting a bottle blank and blow molding, wherein the bottle blank is mainly prepared from the following raw materials in parts by weight: 74-86 parts of PET resin, 7-13 parts of PEN resin, 7-13 parts of PPS resin, 1-3 parts of modified nano silicon dioxide and 0.1-0.5 part of antioxidant; the modified nano silicon dioxide is obtained by treating nano silicon dioxide with 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate and sodium styrenesulfonate. The plastic bottle has the advantages of high tensile strength, high impact strength and high wear resistance through the mutual matching of raw materials, and meets the requirement of higher requirements.
Description
Technical Field
The application relates to the technical field of polymer compound compositions, in particular to a plastic bottle and a bottle blank extrusion process thereof.
Background
Plastic bottles are a composition of a high molecular compound, which has the advantages of light weight, low cost, and convenient processing, and have been widely used in packaging containers for daily life. The plastic bottle mainly refers to a bottle body, and can be matched with the bottle cap to realize good sealing performance. The plastic bottle is mainly made of PET resin, PEN resin, PP resin, PE resin and the like. In the case of plastic bottles, however, mainly PET resins are commercially available, and polyethylene naphthalate is used as PEN resins. In the processing of plastic bottles, PET resin is firstly mixed, and bottle blanks are obtained through melt extrusion, injection molding, cooling molding and demoulding. And then blow molding the bottle blank to continuously increase the volume of the bottle blank, thereby obtaining the plastic bottle. However, the notch impact strength of the plastic bottles on the market at present is generally 8.5kJ/m 2, and the requirements of higher requirements cannot be met.
Disclosure of Invention
In order to improve the notch impact strength of a plastic bottle, the application provides the plastic bottle and a bottle blank extrusion process thereof.
In a first aspect, the present application provides a plastic bottle, which adopts the following technical scheme:
The plastic bottle is obtained by adopting a bottle blank through blow molding, and the bottle blank is mainly prepared from the following raw materials in parts by weight: 74-86 parts of PET resin, 7-13 parts of PEN resin, 7-13 parts of PPS resin, 1-3 parts of modified nano silicon dioxide and 0.1-0.5 part of antioxidant; the modified nano silicon dioxide is obtained by treating nano silicon dioxide with 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate and sodium styrenesulfonate.
According to the plastic bottle, through the mutual matching of raw materials, the tensile strength is more than 78 MPa, the notch impact strength is more than 11kJ/m 2, and the abrasion loss is less than 8mg/100r, so that the plastic bottle has the advantages of high tensile strength, high impact strength and high abrasion resistance, and meets the requirement of higher requirements.
Optionally, the modified nano-silica is prepared by the following method:
T1, adding nano silicon dioxide into water, mixing, adding 3-allyloxypropyl trimethoxy silicon, stirring for 1-3h, and filtering to obtain silane grafted silicon dioxide;
And T2, adding silane grafted silicon dioxide into an ethanol water solution, mixing, adding glycidyl methacrylate and sodium styrene sulfonate, mixing, adding an inorganic initiator, stirring for 2-4h, filtering, washing and drying to obtain the modified nano silicon dioxide.
Optionally, the weight ratio of the nano silicon dioxide to the 3-allyloxypropyl trimethoxy silicon to the glycidyl methacrylate to the sodium styrenesulfonate is 30 (4-6) (2-4) (1-3).
Firstly, nano silicon dioxide and 3-allyloxypropyl trimethoxy silicon are mixed, and grafting of the 3-allyloxypropyl trimethoxy silicon is realized by utilizing a siloxy group. Then adding glycidyl methacrylate and sodium styrene sulfonate, and polymerizing the monomers under the action of an inorganic initiator to realize grafting of the glycidyl methacrylate and the sodium styrene sulfonate, thereby obtaining the modified nano silicon dioxide. And the silicon oxide group, the ester group, the epoxy group and the sodium sulfonate group are introduced on the surface of the nano silicon dioxide, and the interaction between the silicon oxide group, the epoxy group and the sodium sulfonate group is utilized to greatly increase the binding force between the modified nano silicon dioxide and the raw materials, promote crystallization nucleation, refine crystal grains, improve the use effect of the modified nano silicon dioxide, improve the tensile strength, the impact strength and the wear resistance of the plastic bottle, and enable the plastic bottle to show better comprehensive performance.
Optionally, the weight ratio of the 3-allyloxypropyl trimethoxy silicon to the inorganic initiator is (4-6) (0.05-0.15). For example, the weight ratios are 4:0.05, 4:0.1, 4:0.15, 5:0.05, 5:0.1, 5:0.15, 6:0.05, 6:0.1, 6:0.15, but are not limited to the recited values, and other non-recited values within the range are equally applicable.
Optionally, in the step T1, the weight ratio of the nano silicon dioxide to the water is 3 (20-40); in the step T2, the weight ratio of the glycidyl methacrylate to the ethanol aqueous solution is (1-2) (100-200), and the mass concentration of ethanol in the ethanol aqueous solution is 60-80%.
And (3) optimizing the addition amount of water in the step T1, so that the nano silicon dioxide is fully dispersed in the water, and grafting the 3-allyloxypropyl trimethoxy silicon on the surface of the nano silicon dioxide. The addition amount of the ethanol aqueous solution and the mass concentration of the ethanol aqueous solution in the step T2 are optimized, the silane grafted silicon dioxide can be fully dispersed in the ethanol aqueous solution, the silane grafted silicon dioxide, the glycidyl methacrylate and the sodium styrene sulfonate can be fully mixed, and a polymerization reaction occurs, so that the stability and the quality of the preparation of the modified silicon dioxide are ensured.
For example, in step T1, the weight ratio of nano silica to water is 3:20, 3:25, 1:10, 3:35, 3:40, but the present invention is not limited to the recited values, and other non-recited values within the range are equally applicable. For example, in step T2, the weight ratio of glycidyl methacrylate to ethanol aqueous solution is 1:100, 1:150, 1:200, 1:50, 1:75, but the present invention is not limited to the listed values, and other values not listed in the range are equally applicable. For example, the mass concentration of ethanol in the aqueous ethanol solution is 60%, 65%, 70%, 75%, 80%, but is not limited to the values recited, and other values not recited in the range are equally applicable.
Optionally, the average particle size of the nano silicon dioxide is 30-100nm. Preferably, the nanosilica has an average particle size of from 30 to 70nm. Still more preferably, the nanosilica has an average particle size of from 40 to 60nm.
The particle size of the nano silicon dioxide is limited, so that the nano silicon dioxide is convenient to select, the nano silicon dioxide can be uniformly dispersed in water, the modification of the nano silicon dioxide is realized, and the use effect of the modified nano silicon dioxide is ensured. For example, the average particle size of the nanosilica is 30nm, 40nm, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm, but not limited to the recited values, and other values not recited in the range are equally applicable.
Optionally, the inorganic initiator is one or more of ammonium persulfate, sodium persulfate, potassium persulfate and hydrogen peroxide.
The inorganic initiator is optimized, so that the inorganic initiator is convenient to select, and free radicals can be released by ammonium persulfate, sodium persulfate, potassium persulfate and hydrogen peroxide, so that the polymerization reaction of 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate and sodium styrene sulfonate is promoted. Preferably, the inorganic initiator is one or more of ammonium persulfate, sodium persulfate and potassium persulfate.
Optionally, the PET resin has an intrinsic viscosity of 0.6 to 0.9dl/g; the PEN resin has an intrinsic viscosity of 0.6 to 0.9dl/g; the melt index of the PPS resin is 60-100g/10min under the condition of 315 ℃ multiplied by 5 kg. Preferably, the PET resin has an intrinsic viscosity of 0.6 to 0.8dl/g; the PEN resin has an intrinsic viscosity of 0.6 to 0.8dl/g; the melt index of PPS resin is 70-90g/10min under the condition of 315 ℃ multiplied by 5 kg. Still more preferably, the PET resin has an intrinsic viscosity of 0.7dl/g; the PEN resin has an intrinsic viscosity of 0.75dl/g; the PPS resin had a melt index of 80g/10min at 315℃X 5 kg.
Limiting the intrinsic viscosity of the PET resin is convenient for the selection of the PET resin, limiting the intrinsic viscosity of the PEN resin, and also convenient for the selection of the PET resin, limiting the intrinsic viscosity of the PPS resin, and also convenient for the selection of the PPS resin. The intrinsic viscosity of the PET resin was measured by the method of astm d4603, the intrinsic viscosity of the PEN resin was measured by the method of astm d4603, and the melt index of the PPS resin was measured by the method of astm d 1238.
Optionally, the antioxidants are three antioxidants 1010, 1035 and 626, and the weight ratio of the antioxidants 1010, 1035 and 626 is 1 (1-3). For example, the weight ratios of antioxidants 1010, 1035, 626 are 1:1:1, 1:1:2, 1:1:3, 1:2:1, 1:2:2, 1:2:3, 1:3:1, 1:3:2, 1:3:3, but are not limited to the recited values, as other non-recited values within the range of values are equally applicable.
In a second aspect, the application provides a bottle blank extrusion process of the plastic bottle, which adopts the following technical scheme:
the bottle blank extrusion process of the plastic bottle comprises the following steps:
s1, mixing PET resin, PEN resin, PPS resin, modified nano silicon dioxide and an antioxidant, and drying to obtain a mixture;
S2, carrying out melt extrusion on the mixture, and cooling and granulating to obtain a mixed master batch;
And S3, drying the mixed master batch, then carrying out injection molding, cooling and shaping, and demolding to obtain a bottle blank.
Optionally, in step S2, the temperature of the melt extrusion is divided into six zones, and the temperatures of the first to the six zones are 245-255 ℃, 255-265 ℃, 265-275 ℃, 275-285 ℃, 280-290 ℃, 285-295 ℃ respectively in sequence.
Optionally, in step S2, the mixture is melt extruded by a double-screw extruder, wherein the screw speed of the double-screw extruder is 150-250r/min. For example, the screw rotation speed is 150r/min, 170r/min, 200r/min, 230r/min, 250r/min, but the present invention is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned value range are applicable.
In summary, the application has at least the following advantages:
1. the plastic bottle has the advantages of high tensile strength, high impact strength and high wear resistance through the mutual matching of raw materials, the tensile strength is more than 78.MPa, the notch impact strength is more than 11kJ/m 2, the wear amount is less than 8mg/100r, and the requirements of higher requirements are met.
2. In the modified nano silicon dioxide, 3-allyloxypropyl trimethoxy silicon is grafted to the surface of the nano silicon dioxide, then glycidyl methacrylate and sodium styrene sulfonate are grafted to the surface of the nano silicon dioxide by utilizing a polymerization reaction, so that the modified nano silicon dioxide is obtained, and the siloxane groups, ester groups, epoxy groups and sodium sulfonate groups are introduced to the surface of the nano silicon dioxide, so that the bonding strength between raw materials is improved, crystallization nucleation is promoted, grains are refined, the tensile strength, impact strength and wear resistance of a plastic bottle are improved, and the plastic bottle shows better comprehensive performance.
Drawings
Fig. 1 is a schematic view of a bottle preform.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example
Preparation example 1
A modified nanosilicon dioxide prepared by the following method:
T1, adding 30g of nano silicon dioxide into 300g of water at the rotating speed of 500r/min, and stirring for 10min. 5g of 3-allyloxypropyl trimethoxy silicon was added thereto and the mixture was stirred for 2 hours. And filtering to obtain the silane grafted silica.
Wherein the average particle size of the nano-silica is 50nm and is selected from the group consisting of new materials, inc. of Jiupong, hangzhou.
And T2, adding the silane grafted silicon dioxide obtained in the step T1 into 300g of ethanol aqueous solution with the mass concentration of 70% at the rotating speed of 500r/min, and stirring for 10min. 3g of glycidyl methacrylate and 2g of sodium styrenesulfonate are added and stirred for 3min. And adding an inorganic initiator-ammonium persulfate, and stirring for 2 hours. And then filtering, washing 1 time by using 100g of ethanol water solution with the mass concentration of 70%, washing 2 times by using 100g of water, and drying to obtain the modified nano-silica.
Preparation example 2
A modified nano-silica is different from preparation example 1 in that the addition amount of 3-allyloxypropyl trimethoxy silicon is different in step T1, and the addition amount of 3-allyloxypropyl trimethoxy silicon is 4g. In step T2, the amounts of glycidyl methacrylate and sodium styrenesulfonate added were also different, and the amounts of glycidyl methacrylate and sodium styrenesulfonate added were 4g and 1g, respectively.
Preparation example 3
A modified nano-silica is different from preparation example 1 in that the addition amount of 3-allyloxypropyl trimethoxy silicon is different in step T1, and the addition amount of 3-allyloxypropyl trimethoxy silicon is 6g. In step T2, the amounts of glycidyl methacrylate and sodium styrenesulfonate added were also different, and the amounts of glycidyl methacrylate and sodium styrenesulfonate added were 2g and 3g, respectively.
Examples
TABLE 1 raw materials consumption of bottle preform (Unit: kg)
Example 1
A plastic bottle is obtained by blow molding a bottle blank by a blow molding machine, and the raw materials and the raw material proportions of the bottle blank are shown in table 1.
Wherein the intrinsic viscosity of the PET resin is 0.7dl/g; the PEN resin has an intrinsic viscosity of 0.75dl/g; the melt index of the PPS resin is 80g/10min under the condition of 315 ℃ multiplied by 5 kg; the antioxidants comprise three antioxidants 1010, 1035 and 626, and the weight ratio of the antioxidants 1010, 1035 and 626 is 1:2:2; the modified nano-silica is prepared by the method of preparation example 1.
A preform extrusion process for a plastic bottle, comprising the steps of:
S1, adding PEN resin, PPS resin, modified nano silicon dioxide and antioxidant into PET resin, and stirring for 3min. And then drying to obtain the mixture.
S2, adding the mixture into a double-screw extruder, carrying out melt extrusion, and cooling and granulating to obtain the mixed master batch.
Wherein the temperature of the melt extrusion is divided into six areas, and the temperatures of the first area to the six areas are 250 ℃, 260 ℃, 270 ℃, 280 ℃, 285 ℃, 290 ℃ respectively, and the screw speed of the twin-screw extruder is 200r/min.
S3, drying the mixed master batch, putting the dried mixed master batch into an injection molding machine, performing injection molding at the temperature of 290 ℃, cooling and shaping, and demolding to obtain a bottle blank, and referring to FIG. 1.
Example 2
A plastic bottle is different from example 1 in that the raw material ratios of bottle blanks are different, and the raw material ratios of bottle blanks are shown in Table 1.
Example 3
A plastic bottle is different from example 1 in that the raw material ratios of bottle blanks are different, and the raw material ratios of bottle blanks are shown in Table 1.
Example 4
A plastic bottle is different from example 1 in that the source of modified nano-silica in the raw material of bottle preform is different, and the modified nano-silica is prepared by the method of preparation example 2.
Example 5
A plastic bottle is different from example 1 in that the source of modified nano-silica in the raw material of bottle preform is different, and the modified nano-silica is prepared by the method of preparation example 3.
Comparative example
Comparative example 1
A plastic bottle is different from example 1 in that modified nano silica is not added to the raw material of bottle preform.
Comparative example 2
A plastic bottle is distinguished from example 1 in that the modified nanosilica is replaced by an equivalent amount of nanosilica in the raw material of the bottle preform.
Comparative example 3
A plastic bottle is different from example 1 in that the same amount of 3-allyloxypropyl trimethoxy silicon is used for replacing glycidyl methacrylate and sodium styrenesulfonate in the preparation method of modified nano silicon dioxide in bottle blank raw materials.
Comparative example 4
A plastic bottle is distinguished from example 1 in that sodium styrenesulfonate is replaced with an equivalent amount of glycidyl methacrylate in the preparation method of modified nano-silica in the bottle preform raw material.
Comparative example 5
A plastic bottle is distinguished from example 1 in that the glycidyl methacrylate is replaced by an equivalent amount of sodium styrenesulfonate in the preparation method of modified nano-silica in the bottle preform raw material.
Performance detection
(1) The bottle blanks obtained in examples 1-5 and comparative examples 1-5 were taken and blow molded to obtain plastic bottles, and then the plastic bottles were examined according to GB4806.7-20016, BB/T0060-2012. Through tests, the plastic bottles obtained in examples 1-5 and comparative examples 1-5 have total migration less than 5mg/dm 2, potassium permanganate consumption less than 5mg/kg, heavy metal content less than 0.5mg/kg, antimony content less than 0.05mg/kg, ethanol decolorization test as negative, acetaldehyde content less than 5g/g and meet the requirements of GB 13113-1991.
(2) The bottle blanks obtained in examples 1 to 5 and comparative examples 1 to 5 were taken and blow molded to obtain plastic bottles, and the following performance tests were carried out on the plastic bottles, and the test results are shown in Table 2.
Wherein, according to GB/T1040.1-2018, determination of Plastic tensile Properties, part 1: general rule, test the tensile strength of plastic bottles.
And detecting the notch impact strength of the plastic bottle according to GB/T1843-2008 'determination of impact strength of plastic cantilever beam'.
According to GB/T5478-2008 "Plastic Rolling abrasion test method", the abrasion loss of a Plastic bottle is detected, and the smaller the abrasion loss is, the better the abrasion resistance of the Plastic bottle is.
TABLE 2 detection results
As can be seen from Table 2, the plastic bottles of the present application have a tensile strength of 78.1 to 79.5MPa and a notched impact strength of 11.12 to 11.48kJ/m 2, so that they exhibit the advantages of high tensile strength and high impact strength. And the abrasion loss is 7.6-7.9mg/100r, so that the wear resistance is high. Namely, the plastic bottle has the advantages of high tensile strength, high impact strength and high wear resistance through the mutual matching of the raw materials, and meets the requirement of higher requirements.
Comparing comparative example 1 with comparative example 2, the raw material of the plastic bottle of comparative example 1 is not added with modified nano silicon dioxide; comparative example 2 nano silica was added to the raw material of the plastic bottle. From this, it can be seen that the addition of nano silica to the plastic bottle material can improve the tensile strength and notched impact strength and significantly reduce the amount of wear. And combining with the comparative example 3, the modified silicon dioxide in the raw material of the plastic bottle of the comparative example 3 is obtained by treating nano silicon dioxide with 3-allyloxypropyl trimethoxy silicon. From this, it can be seen that the modification treatment of the nano silica can further improve the bonding strength between the nano silica and the raw material and increase the use effect of the modified nano silica.
Comparing example 1 with comparative examples 3-4, the modified silica in the raw material of the plastic bottle of comparative example 3 is obtained by treating nano silica with 3-allyloxypropyl trimethoxy silicon; comparative example 4 modified silica in plastic bottle stock, obtained by treating nanosilicon with 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate; comparative example 5 modified silica in plastic bottle raw material, which is obtained by treating nano silica with 3-allyloxypropyl trimethoxy silicon and sodium styrenesulfonate; example 1 modified silica in plastic bottle stock obtained by treating nanosilicon with 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate, sodium styrenesulfonate. Therefore, in the modification treatment of the nano silicon dioxide, the 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate and sodium styrene sulfonate are matched, and the siloxane group, the ester group, the epoxy group and the sodium sulfonate group are introduced to the surface of the nano silicon dioxide, so that the use effect of the modified nano silicon dioxide can be remarkably improved, the tensile strength, the impact strength and the wear resistance of the plastic bottle are improved, and the plastic bottle shows better comprehensive performance.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (8)
1. A plastic bottle, characterized in that: the plastic bottle is obtained by adopting a bottle blank through blow molding, wherein the bottle blank is prepared from the following raw materials in parts by weight: 74-86 parts of PET resin, 7-13 parts of PEN resin, 7-13 parts of PPS resin, 1-3 parts of modified nano silicon dioxide and 0.1-0.5 part of antioxidant; the modified nano silicon dioxide is obtained by treating nano silicon dioxide with 3-allyloxypropyl trimethoxy silicon, glycidyl methacrylate and sodium styrenesulfonate;
The modified nano silicon dioxide is prepared by the following method:
T1, adding nano silicon dioxide into water, mixing, adding 3-allyloxypropyl trimethoxy silicon, stirring for 1-3h, and filtering to obtain silane grafted silicon dioxide;
adding silane grafted silicon dioxide into ethanol water solution, mixing, adding glycidyl methacrylate and sodium styrene sulfonate, mixing, adding an inorganic initiator, stirring for 2-4h, filtering, washing and drying to obtain modified nano silicon dioxide;
The weight ratio of the nano silicon dioxide to the 3-allyloxypropyl trimethoxy silicon to the glycidyl methacrylate to the sodium styrenesulfonate is 30 (4-6) (2-4) (1-3).
2. A plastic bottle according to claim 1, wherein: the weight ratio of the 3-allyloxypropyl trimethoxy silicon to the inorganic initiator is (4-6) and (0.05-0.15).
3. A plastic bottle according to claim 1, wherein: in the step T1, the weight ratio of the nano silicon dioxide to the water is 3 (20-40); in the step T2, the weight ratio of the glycidyl methacrylate to the ethanol aqueous solution is (1-2) (100-200), and the mass concentration of ethanol in the ethanol aqueous solution is 60-80%.
4. A plastic bottle according to claim 1, wherein: the average particle size of the nano silicon dioxide is 30-100nm.
5. A plastic bottle according to claim 1, wherein: the inorganic initiator is one or more of ammonium persulfate, sodium persulfate, potassium persulfate and hydrogen peroxide.
6. A plastic bottle according to claim 1, wherein: the intrinsic viscosity of the PET resin is 0.6-0.9dl/g; the PEN resin has an intrinsic viscosity of 0.6 to 0.9dl/g; the melt index of the PPS resin is 60-100g/10min under the condition of 315 ℃ multiplied by 5 kg.
7. A plastic bottle according to claim 1, wherein: the antioxidants comprise three antioxidants 1010, 1035 and 626, and the weight ratio of the antioxidants 1010, 1035 and 626 is 1 (1-3).
8. A preform extrusion process for a plastic bottle as claimed in any one of claims 1 to 7, wherein: the method comprises the following steps:
s1, mixing PET resin, PEN resin, PPS resin, modified nano silicon dioxide and an antioxidant, and drying to obtain a mixture;
S2, carrying out melt extrusion on the mixture, and cooling and granulating to obtain a mixed master batch;
And S3, drying the mixed master batch, then carrying out injection molding, cooling and shaping, and demolding to obtain a bottle blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410683550.1A CN118256070B (en) | 2024-05-30 | 2024-05-30 | Plastic bottle and bottle blank extrusion process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410683550.1A CN118256070B (en) | 2024-05-30 | 2024-05-30 | Plastic bottle and bottle blank extrusion process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118256070A CN118256070A (en) | 2024-06-28 |
| CN118256070B true CN118256070B (en) | 2024-07-30 |
Family
ID=91613149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410683550.1A Active CN118256070B (en) | 2024-05-30 | 2024-05-30 | Plastic bottle and bottle blank extrusion process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118256070B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675518A (en) * | 2012-06-01 | 2012-09-19 | 江南大学 | Preparation method for organic-inorganic hybrid fluorine-silicon modified nano waterborne resin |
| CN104356273A (en) * | 2014-10-29 | 2015-02-18 | 上海大学 | Method for preparing nanometer silicon dioxide composite material with super concentrated emulsion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1778541A (en) * | 2004-11-26 | 2006-05-31 | 上海紫泉饮料工业有限公司 | Production of modified and light PET thermal-loading polyester bottles |
| KR20130048741A (en) * | 2013-04-08 | 2013-05-10 | 이재환 | Liquid curable composition |
| KR101839691B1 (en) * | 2016-08-22 | 2018-04-26 | 경희대학교 산학협력단 | X-ray detector having photoconductor comprising perovskite compound |
-
2024
- 2024-05-30 CN CN202410683550.1A patent/CN118256070B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675518A (en) * | 2012-06-01 | 2012-09-19 | 江南大学 | Preparation method for organic-inorganic hybrid fluorine-silicon modified nano waterborne resin |
| CN104356273A (en) * | 2014-10-29 | 2015-02-18 | 上海大学 | Method for preparing nanometer silicon dioxide composite material with super concentrated emulsion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118256070A (en) | 2024-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101851410B (en) | High-transparency high-toughness polycarbonate regenerated material compound and preparation method thereof | |
| CN103509239B (en) | A kind of scraping-resistant polypropylene material and preparation method thereof | |
| CN103589058A (en) | Reinforced polypropylene composite material and preparation method thereof | |
| CN102382348B (en) | Reactive extrusion matte agent, low gloss PC/ABS alloy and its preparation method | |
| CN111138758B (en) | Short fiber reinforced polypropylene composite material for improving floating fiber and high surface finish degree and preparation method thereof | |
| CN103360656A (en) | Regenerated polyethylene composition and preparation method thereof | |
| CN103497425A (en) | High-strength and high-tenacity polypropylene composite materials and preparation method thereof | |
| KR101383621B1 (en) | Recycled polypropylene polymer composite materal composition with improved tensile strength and flexural rigidity and manufacturing method thereof | |
| KR101000658B1 (en) | Recycling polyethyleneterephthalate composite and manufacturing method of thereof | |
| CN112608552A (en) | Polypropylene composite material with high glossiness and good low-temperature toughness and preparation method thereof | |
| CN109438799B (en) | Blended polyethylene resin suitable for hollow blow molding barrel with volume of more than 200L, and preparation method and application thereof | |
| CN1243051C (en) | Coloring agglomerate for polyethylene packing film and its prepn process | |
| CN118256070B (en) | Plastic bottle and bottle blank extrusion process thereof | |
| CN111393823B (en) | Gn-PET/PC alloy with excellent mechanical property and preparation method thereof | |
| CN1951994A (en) | Transparent film masterbatch and its preparing method | |
| CN1085704C (en) | Thermoplastic moulding materials based on polyethylene terephthalate for use in injection moulding of parts | |
| CN114921069B (en) | Full-biodegradable film with high heat seal strength and preparation method and application thereof | |
| CN115216093A (en) | Environment-friendly degradable plastic bag and preparation method thereof | |
| CN112679900B (en) | High-performance AES/recovered PET/recovered PCTG composite material and preparation method and application thereof | |
| CN112143194A (en) | Modified regenerated PC/ABS alloy reclaimed material and preparation method thereof | |
| IE48681B1 (en) | Mouldable compositions based on a thermoplastic polymer,glass fibres and a bis-maleimide | |
| CN109504028A (en) | Resin combination and resin-formed body | |
| CN113045823A (en) | Talcum powder modified low-VOC high-rigidity polypropylene material and preparation method thereof | |
| CN118126505B (en) | Plastic bottle and forming process thereof | |
| CN115975365B (en) | Highlight antibacterial spraying-free PC/ASA composite material and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |