CN116693964A - Precipitation type polyethylene material, preparation method and simulation pine branch - Google Patents
Precipitation type polyethylene material, preparation method and simulation pine branch Download PDFInfo
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 47
- -1 polyethylene Polymers 0.000 title claims abstract description 47
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 47
- 235000008331 Pinus X rigitaeda Nutrition 0.000 title claims abstract description 40
- 235000011613 Pinus brutia Nutrition 0.000 title claims abstract description 40
- 241000018646 Pinus brutia Species 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000001556 precipitation Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000004088 simulation Methods 0.000 title description 15
- 229940068918 polyethylene glycol 400 Drugs 0.000 claims abstract description 22
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 10
- 238000007127 saponification reaction Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 30
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 22
- 239000003063 flame retardant Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 17
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000007605 air drying Methods 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 6
- 229960001545 hydrotalcite Drugs 0.000 claims description 6
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 claims description 3
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 12
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 239000012778 molding material Substances 0.000 abstract description 2
- 239000002244 precipitate Substances 0.000 abstract description 2
- 239000004094 surface-active agent Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 235000004507 Abies alba Nutrition 0.000 description 8
- 241000191291 Abies alba Species 0.000 description 8
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical group [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 5
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 4
- 229940070765 laurate Drugs 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- JQYOCVPEXWBLGO-UHFFFAOYSA-N [N].[Si].[P] Chemical compound [N].[Si].[P] JQYOCVPEXWBLGO-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229940113115 polyethylene glycol 200 Drugs 0.000 description 1
- 229940057847 polyethylene glycol 600 Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 239000012745 toughening agent Substances 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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G1/00—Artificial flowers, fruit, leaves, or trees; Garlands
- A41G1/007—Artificial trees
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application belongs to the technical field of injection molding materials, and discloses a precipitation type polyethylene material, a preparation method and simulated pine branches, wherein the precipitation type polyethylene material comprises, by weight, 85-95 parts of polyethylene resin and 0.5-1.5 parts of polyethylene glycol 400 dilaurate, the acid value of the polyethylene glycol 400 dilaurate is less than 9.5, and the saponification value is 130-155ml KOH/g. The polyethylene glycol 400 dilaurate is used as the surfactant of polyethylene resin, has strong migration, and can migrate to the surface of pine branches after injection molding, so that a layer of precipitate is formed on the surface of the pine branches, and the phenomenon of surface fogging is realized.
Description
Technical Field
The application relates to the technical field of injection molding materials, in particular to a precipitation type polyethylene material, a preparation method and a simulation pine branch.
Background
Christmas is a very important holiday in Western countries, christmas tree is an important decoration of Christmas, but with the enhancement of environmental awareness of people, the production technology of the decorative simulation Christmas tree is more mature, more lifelike, and the deforestation of forests is reduced.
The European and American demand for the simulated Christmas tree is very large, and the main material of the current common simulated Christmas tree branch is PVC or flame-retardant polyethylene. PVC has good flame retardant property, low price and great demand, but the PVC is not suitable for injection molding, so the simulation effect is poor. The flame-retardant polyethylene has good processability, can be used for manufacturing various types of simulated Christmas pine branches with various colors, has excellent flame-retardant property, can be extinguished immediately after being separated from fire, and is popular with European and American buyers.
Chinese patent 201310219880.7 discloses a halogen-free environment-friendly flame-retardant polyethylene material which is prepared from, by weight, 20-70 parts of low-density polyethylene, 15-45 parts of a composite flame retardant, 2-15 parts of a toughening agent, 1-15 parts of a filler, 0.1-1 part of a lubricant and 0.1-1 part of other auxiliary agents.
The composite flame retardant used for the flame-retardant polyethylene material prepared by the patent is obtained by carrying out surface modification treatment on a silicon-phosphorus-nitrogen flame retardant, has good compatibility and flame retardance, and the obtained halogen-free environment-friendly flame-retardant polyethylene material product which is not precipitated has the characteristics of high fluidity, excellent toughness, no precipitation, easy processing and the like, and can be used for injection molding of simulated Christmas trees; however, the simulation degree of the Christmas tree in the market is more and more required, wherein the simulation of the pine branch is a very critical step, and the pine branch injection molded by the flame-retardant polyethylene material of the patent does not have fogging, so the simulation degree is relatively low.
Therefore, aiming at the customers with higher requirements on the simulation degree, developing a pine branch product with fogging after injection molding and a corresponding polyethylene material are urgent market demands at present.
Disclosure of Invention
The application aims to provide a precipitation type polyethylene material which can cause the surface of pine branches to have a fogging phenomenon when used for injection molding of the pine branches, and has higher simulation degree.
The application further aims to provide a preparation method of the precipitation type polyethylene material, and the prepared precipitation type polyethylene material has the characteristic of high simulation degree when being used for simulating pine branch injection molding of Christmas trees.
Meanwhile, the application also provides the simulated pine branch, the outer surface of the simulated pine branch is provided with the fog, the detail of the pine branch can be truly restored, the simulation degree is higher, and the market demand of the high-requirement simulated Christmas tree can be met.
In order to achieve the aim, the application provides a precipitation type polyethylene material which comprises, by weight, 85-95 parts of polyethylene resin and 0.5-1.5 parts of polyethylene glycol 400 dilaurate.
Preferably, the polyethylene glycol 400 dilaurate has an acid value of < 9.5 and a saponification value of 130-155ml KOH/g.
The precipitated polyethylene material also comprises 1 to 5 parts of flame retardant, 0.2 to 0.8 part of lubricant, 0.2 to 0.8 part of acid absorber, 0.5 to 1.5 parts of antioxidant and 0.01 to 0.5 part of toner.
Preferably, the flame retardant is compounded by one or more of decabromodiphenyl ether, hexabromocyclododecane, octabromoether and tetrabromobisphenol A and antimony trioxide.
Preferably, the lubricant is one or more of polyethylene wax and ethylene bis-stearamide.
Preferably, the acid absorber is magnesium aluminum hydrotalcite.
Preferably, the antioxidant is one or both of antioxidant 168 and antioxidant 1010.
Preferably, the toner is compounded by phthalocyanine green, permanent yellow, phthalocyanine blue, titanium yellow, titanium white and carbon black.
The application also provides a preparation method of the precipitation type polyethylene material, which comprises the following steps:
step 1: preparing an auxiliary agent package from a flame retardant, an antioxidant, an acid absorber and a lubricant;
step 2: sequentially carrying out primary mixing, extrusion, water cooling, air drying and granulating on the polyethylene resin, the toner and the auxiliary agent bag, and then carrying out secondary mixing to obtain the precipitation type polyethylene material;
wherein, the mixture obtained by primary mixing in the step 2 is added with polyethylene glycol 400 dilaurate in the extrusion operation process.
A simulated pine branch injection molded from the precipitated polyethylene material of any one of claims 1-7.
Further, the polyethylene glycol 400 dilaurate is precipitated on the outer surface of the simulated pine branch.
Advantageous effects
Compared with the prior art, the application has at least the following advantages:
(1) The application adopts polyethylene glycol 400 dilaurate as an additive, and can provide good demoulding property of injection simulated pine branch;
(2) The polyethylene glycol 400 dilaurate is used as the surfactant of the polyethylene resin, has strong migration, and can migrate to the surface of pine branches after injection molding, and a layer of precipitate is formed on the surface of the pine branches, so that the phenomenon of surface fogging is realized;
(3) The surface of the simulated pine branch prepared by the application has the effect of fogging, the fogging condition is controllable, and the simulated pine branch has extremely high simulation degree.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.
FIG. 1 is a simulated pine branch picture of example 2 of the present application;
fig. 2 is a simulated pine branch picture of comparative example 1 of the present application.
Detailed Description
The application is further described below in connection with the examples, which are not to be construed as limiting the application in any way, but rather as a limited number of modifications which are within the scope of the appended claims.
In order to explain the technical content of the present application in detail, the following description will further explain the embodiments.
In the present example and comparative example, the polyethylene resin was a low density polyethylene having a melt index of 60g/10min, and the components used were all commercially available products, unless otherwise specified, in which a compounding ratio of brominated flame retardant to antimony trioxide was formulated at a weight ratio of 2:1.
Example 1
A precipitation type polyethylene material is prepared by the following steps: the following components are all calculated according to parts by weight,
step 1: 1 part of flame retardant compounded by decabromodiphenyl ether and antimonous oxide, 0.2 part of polyethylene wax, 0.2 part of magnesium aluminum hydrotalcite and 0.5 part of antioxidant 168 are mixed to prepare an auxiliary agent packet;
step 2: putting 85 parts of polyethylene resin, 0.01 part of toner and an auxiliary agent bag into a high-speed mixing barrel for primary mixing for 1min, putting the mixture into a double-screw extruder after mixing, simultaneously adding 0.5 part of polyethylene glycol 400 double laurate into the double-screw extruder for extrusion operation, and mixing and extruding the mixture into a strip-shaped mixture in the double-screw extruder;
step 3: and (3) carrying out water cooling, air drying and granulating by a granulator on the strip-shaped mixture, and then putting the mixture into a high-speed mixing barrel for secondary mixing for 15min to obtain the precipitated polyethylene material.
Example 2
A precipitation type polyethylene material is prepared by the following steps: the following components are all calculated according to parts by weight,
step 1: 3 parts of flame retardant compounded by hexabromocyclododecane and antimonous oxide, 0.6 part of polyethylene wax, 0.5 part of magnesium aluminum hydrotalcite and 1 part of antioxidant 168 are mixed to prepare an auxiliary agent packet;
step 2: putting 90 parts of polyethylene resin, 0.2 part of toner and an auxiliary agent bag into a high-speed mixing barrel for primary mixing for 1min, putting the mixture into a double-screw extruder after mixing, simultaneously adding 1 part of polyethylene glycol 400 double laurate into the double-screw extruder for extrusion operation, and carrying out mixing extrusion in the double-screw extruder to obtain a strip-shaped mixture;
step 3: and (3) carrying out water cooling, air drying and granulating by a granulator on the strip-shaped mixture, and then putting the mixture into a high-speed mixing barrel for secondary mixing for 15min to obtain the precipitated polyethylene material.
Example 3
A precipitation type polyethylene material is prepared by the following steps: the following components are all calculated according to parts by weight,
step 1: 5 parts of flame retardant compounded by tetrabromobisphenol A and antimony trioxide, 0.8 part of polyethylene wax, 0.8 part of magnesium aluminum hydrotalcite and 1.5 parts of antioxidant 1010 are mixed to prepare an auxiliary agent packet;
step 2: placing 95 parts of polyethylene resin, 0.5 part of toner and an auxiliary agent bag into a high-speed mixing barrel for primary mixing for 1min, placing into a double-screw extruder after mixing, simultaneously adding 1.5 parts of polyethylene glycol 400 double laurate into the double-screw extruder for extrusion operation, and mixing and extruding into a strip-shaped mixture in the double-screw extruder;
step 3: and (3) carrying out water cooling, air drying and granulating by a granulator on the strip-shaped mixture, and then putting the mixture into a high-speed mixing barrel for secondary mixing for 15min to obtain the precipitated polyethylene material.
Example 4
A precipitation type polyethylene material is prepared by the following steps: the following components are all calculated according to parts by weight,
step 1: 4 parts of flame retardant compounded by decabromodiphenyl ether and antimonous oxide, 0.7 part of polyethylene wax, 0.5 part of magnesium aluminum hydrotalcite, 0.6 part of antioxidant 168 and 0.6 part of antioxidant 1010 are mixed to prepare an auxiliary agent packet;
step 2: putting 92 parts of polyethylene resin, 0.3 part of toner and an auxiliary agent bag into a high-speed mixing barrel for primary mixing for 1min, putting into a double-screw extruder after mixing, simultaneously adding 1.2 parts of polyethylene glycol 400 double laurate into the double-screw extruder for extrusion operation, and mixing and extruding into a strip-shaped mixture in the double-screw extruder;
step 3: and (3) carrying out water cooling, air drying and granulating by a granulator on the strip-shaped mixture, and then putting the mixture into a high-speed mixing barrel for secondary mixing for 15min to obtain the precipitated polyethylene material.
Comparative example 1
In general, the procedure of example 2 was followed except that polyethylene glycol 400 dilaurate was replaced with polyethylene glycol 600 dilaurate.
Comparative example 2
Generally the same as in example 2, except that polyethylene glycol 400 dilaurate was replaced with polyethylene glycol 200 dilaurate.
Comparison of sample results
The polyethylene materials obtained in examples 1 to 4 and comparative examples 1 to 3 were injection molded using a horizontal injection molding machine to obtain simulated pine needles of application examples 1 to 4 and comparative examples 1 to 3, and molding process conditions were: the injection temperature was 270 ℃; the injection pressure is 150MPa; dwell time 3s; cooling time was 5s.
The simulated pine branches of application examples 1 to 4 and application comparative examples 1 to 3 were subjected to field observation of appearance and tested according to the following performance test criteria, and the results are shown in Table 1.
The performance test criteria are as follows:
melt index: testing (190 ℃ C./2.16 Kg) according to ASTM D-1238;
elongation at break: testing according to ASTM D-638;
notched Izod impact Strength: testing was performed according to ASTM D-256.
TABLE 1 simulation pine branch appearance observations of application examples 1-4 and application comparative examples 1-3
According to the observation results of the appearance of the simulated pine branch of application examples 1-4 and application comparative examples 1-2, the polyethylene material formed by matching polyethylene glycol 400 dilaurate with polyethylene resin is adopted in the application, and when the polyethylene material is used for manufacturing the simulated pine branch by injection molding, the surface of the simulated pine branch can be provided with fog, so that the simulation degree is higher; see, in particular, the pine branch comparisons of fig. 1 and 2: the color appears white when the surface of the simulated pine branch in the figure 1 has fog, white powder is separated out from the surface, and the surface of the simulated pine branch in the figure 2 does not have fog, and the head part is blue-white; in fig. 1, the fogging of the outer surface of the simulated pine branch is mainly concentrated on the head of the simulated pine branch, because the simulated christmas pine branch is molded by the head preferentially in the injection molding process, and the middle part is molded by the injection, so that the head is cooled preferentially relatively, and therefore, the polyethylene glycol 400 dilaurate is easier to form fogging on the head and face.
The polyethylene glycol 400 dilaurate acid value adopted by the application is less than 9.5, and the saponification value is 130-155ml KOH/g, so that the application has the advantage of effectively improving the color and ageing resistance of the product.
The embodiments presented herein are merely implementations selected from combinations of all possible embodiments. The following claims should not be limited to the description of the embodiments of the application. Some numerical ranges used in the claims include sub-ranges within which variations in these ranges are also intended to be covered by the appended claims.
Claims (10)
1. The precipitated polyethylene material is characterized by comprising, by weight, 85-95 parts of polyethylene resin and 0.5-1.5 parts of polyethylene glycol 400 dilaurate.
2. The precipitated polyethylene material according to claim 1, wherein the polyethylene glycol 400 dilaurate has an acid value of < 9.5 and a saponification value of 130-155ml koh/g.
3. The precipitated polyethylene material according to claim 1, further comprising 1 to 5 parts of a flame retardant, 0.2 to 0.8 parts of a lubricant, 0.2 to 0.8 parts of an acid absorber, 0.5 to 1.5 parts of an antioxidant, and 0.01 to 0.5 parts of a toner.
4. The precipitated polyethylene material according to claim 3, wherein the flame retardant is compounded from antimony trioxide and one or more of decabromodiphenyl ether, hexabromocyclododecane, octabromoether and tetrabromobisphenol a.
5. A precipitated polyethylene material according to claim 3, wherein the lubricant is one or more of polyethylene wax, ethylene bis stearamide.
6. A precipitated polyethylene material according to claim 3, wherein the acid acceptor is magnesium aluminium hydrotalcite.
7. The precipitated polyethylene material according to claim 3, wherein the antioxidant is one or both of antioxidant 168 and antioxidant 1010.
8. A method for producing the precipitated polyethylene material according to any one of claims 1 to 7, comprising the steps of:
step 1: preparing an auxiliary agent package from a flame retardant, an antioxidant, an acid absorber and a lubricant;
step 2: sequentially carrying out primary mixing, extrusion, water cooling, air drying and granulating on the polyethylene resin, the toner and the auxiliary agent bag, and then carrying out secondary mixing to obtain the precipitation type polyethylene material;
wherein, the mixture obtained by primary mixing in the step 2 is added with polyethylene glycol 400 dilaurate in the extrusion operation process.
9. A simulated pine branch, characterized in that it is injection molded from the precipitated polyethylene material according to any one of claims 1-7.
10. The simulated pine branch of claim 9 wherein said polyethylene glycol 400 dilaurate is precipitated on the outer surface of said simulated pine branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310690523.2A CN116693964B (en) | 2023-06-12 | 2023-06-12 | Precipitation type polyethylene material, preparation method and simulation pine branch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310690523.2A CN116693964B (en) | 2023-06-12 | 2023-06-12 | Precipitation type polyethylene material, preparation method and simulation pine branch |
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| CN116693964A true CN116693964A (en) | 2023-09-05 |
| CN116693964B CN116693964B (en) | 2023-12-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295826A (en) * | 2010-06-23 | 2011-12-28 | 苏州市苏晨化工塑料有限公司 | Reinforced flame-retarding polyethylene glycol terephthalate blended material |
| CN102619084A (en) * | 2011-01-30 | 2012-08-01 | 大亚科技股份有限公司 | Polypropylene spinning oil composition for cigarette and preparation method thereof |
| CN110066443A (en) * | 2019-04-11 | 2019-07-30 | 广东聚石化学股份有限公司 | A kind of halogen-free fire-retardant polyethylene material and its preparation method and application |
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2023
- 2023-06-12 CN CN202310690523.2A patent/CN116693964B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295826A (en) * | 2010-06-23 | 2011-12-28 | 苏州市苏晨化工塑料有限公司 | Reinforced flame-retarding polyethylene glycol terephthalate blended material |
| CN102619084A (en) * | 2011-01-30 | 2012-08-01 | 大亚科技股份有限公司 | Polypropylene spinning oil composition for cigarette and preparation method thereof |
| CN110066443A (en) * | 2019-04-11 | 2019-07-30 | 广东聚石化学股份有限公司 | A kind of halogen-free fire-retardant polyethylene material and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 方超;夏茹;荣传新;唐永志;钱家盛;陈鹏;杨斌;曹明;郑争志;: "原位法制备PU/水玻璃有机―无机杂化注浆材料及其性能研究", 塑料工业, no. 07, pages 13 - 16 * |
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