CN115926309A - Plastic composition safe to use and plastic toy prepared from same - Google Patents
Plastic composition safe to use and plastic toy prepared from same Download PDFInfo
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- CN115926309A CN115926309A CN202210149169.8A CN202210149169A CN115926309A CN 115926309 A CN115926309 A CN 115926309A CN 202210149169 A CN202210149169 A CN 202210149169A CN 115926309 A CN115926309 A CN 115926309A
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- 239000004033 plastic Substances 0.000 title claims abstract description 75
- 229920003023 plastic Polymers 0.000 title claims abstract description 75
- 239000000203 mixture Substances 0.000 title claims abstract description 46
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000003449 preventive effect Effects 0.000 claims abstract description 13
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 13
- 239000012764 mineral filler Substances 0.000 claims abstract description 8
- 239000012745 toughening agent Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000855 fungicidal effect Effects 0.000 claims description 2
- 239000000417 fungicide Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 17
- 239000011863 silicon-based powder Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 12
- 239000004709 Chlorinated polyethylene Substances 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920006124 polyolefin elastomer Polymers 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229910001923 silver oxide Inorganic materials 0.000 description 3
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000895503 Metrosideros Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008133 cognitive development Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Toys (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a plastic composition safe to use, which comprises the following preparation raw materials in parts by weight: 1.5-3 parts of thermoplastic resin, 0.05-0.15 part of toughening agent, 0.01-0.05 part of mildew preventive, 2-5 parts of mineral filler, 0.02-0.08 part of release agent and 0.01-0.03 part of stabilizer. The invention adopts the following components in weight ratio of 1.145:0.764: the combination of PP, PE and CPE thermoplastic resins of 0.038 ensures that the prepared plastic composition has good toughness and wear resistance, prolongs the service life of the prepared plastic toy, and ensures that the prepared plastic composition has good mildew-proof property by adding nano silver of 5-7nm and silicon powder of 1300-1500 meshes, thereby avoiding the mildew of the prepared plastic toy in the long-term use process and improving the use safety.
Description
Technical Field
The invention relates to a plastic composition safe to use, relates to C08L, and particularly relates to the field of compositions of high molecular compounds.
Background
The plastic toy is a toy formed by adding various auxiliary materials or additives into a high molecular synthetic resin material, and is widely applied to the production of children toys due to the characteristics of light weight, easy molding and bright color. Because children are younger and the cognitive development of the brain is incomplete, the toy material used must have higher safety and prevent the toy from causing danger after being eaten by children by mistake.
Chinese invention patent CN201510646966.7 discloses an antibacterial masterbatch for plastic toys, which realizes the antibacterial effect of the plastic masterbatch by adding a natural antibacterial agent, but the natural antibacterial agent has poor heat resistance and stability, and the antibacterial performance is easily reduced in a high-temperature environment. Chinese invention patent CN202010106922.6 discloses a polyethylene master batch and a preparation method thereof, wherein an antibacterial effect is realized by adding zinc ions and copper ions, and the thermal stability of the polyethylene master batch is improved by adding an infrared resistant aid which is a tin-containing oxide and has high toxicity, and is not suitable for children toys.
Disclosure of Invention
In order to improve the wear resistance of the plastic composition and reduce the mildew of the plastic composition, the first aspect of the invention provides a plastic composition which is safe to use, and the preparation raw materials comprise the following components in parts by weight: 1.5-3 parts of thermoplastic resin, 0.05-0.15 part of toughening agent, 0.01-0.05 part of mildew inhibitor, 2-5 parts of mineral filler, 0.02-0.08 part of release agent and 0.01-0.03 part of stabilizer.
As a preferred embodiment, the thermoplastic resin is selected from one or a combination of several of PP, PE, CPE, PS, ABS, PC, PU and PET.
As a preferred embodiment, the thermoplastic resin is a combination of PP, PE, CPE.
In a preferred embodiment, the weight ratio of PP, PE and CPE is (1-2): (0.5-1): (0.01-0.05).
In a preferred embodiment, the weight ratio of PP, PE, CPE is (1.1-1.5): (0.7-0.8): (0.03-0.04).
As a preferred embodiment, the weight ratio of PP, PE and CPE is 1.145:0.764:0.038.
as a preferred embodiment, the toughening agent is selected from one or a combination of POE, SBS, MBS and EVA.
As a preferred embodiment, the toughening agent is POE.
As a preferred embodiment, the mildew preventive is a mildew preventive solution, and is selected from one or a combination of several of a nano silver solution, a zinc oxide solution, a titanium dioxide solution, a copper sulfate solution and an iron sesquioxide solution.
As a preferred embodiment, the mildew preventive is a mildew preventive solution, and the mildew preventive solution is a nano silver solution.
In a preferred embodiment, the solute in the solution of the mildew preventive is powder, and the particle size of the powder is 5-10nm.
In a preferred embodiment, the solute in the solution of the mildew preventive is powder, and the particle size of the powder is 5-7nm.
In a preferred embodiment, the solute in the solution of the fungicide is powder, and the particle size of the powder is 5nm.
In a preferred embodiment, the mineral filler is silicate, and the silicate is selected from one or a combination of several of silica powder, talcum powder, calcium silicate, montmorillonite, bentonite, mica powder, glass fiber, asbestos and C material.
In a preferred embodiment, the mineral filler is silicate, and the silicate is silica powder and C material.
As a preferable embodiment, the weight ratio of the silicon powder to the material C is (2-4): (0.2-0.4).
As a preferred embodiment, the weight ratio of the silicon powder to the material C is 3.6:0.03.
the C material is C1-C5 material, C1 material, C2 material, C3 material and C4 material, and the weight ratio of the C5 material is 1:1:1:1:1.
in a preferred embodiment, the particle size of the silicon powder is 1300-1600 meshes.
In a preferred embodiment, the particle size of the silicon powder is 1300-1500 meshes.
In a preferred embodiment, the particle size of the silicon powder is 1400 mesh.
In the experimental process, the applicant finds that the nano silver solution with the particle size of 5-7nm and the silicon powder with the particle size of 1300-1500 meshes are added into the thermoplastic resin together, so that the service life of the composition can be prolonged, the toughness and the wear resistance are improved, and the plastic toy prepared by the method is not easy to mildew. The possible reasons for guessing are: the weight ratio of 1.145:0.764:0.038, the thermoplastic resin of PP, PE and CPE can enable soft and hard blocks of the resin to be mutually nested and combined to form a composition material with proper toughness, and the prepared plastic toy has good wear resistance in a long-term use process, but mildew stains are easily generated and the use safety of the plastic toy is influenced if the plastic toy is used in a humid environment, the mildew resistance of the composition material can be improved by adding the nano-silver mildew preventive, but the plastic material is easily discolored after the nano-silver is added and the appearance of the product is influenced, and the applicant further finds that silicon powder can inhibit the discoloration of the plastic material in the experimental process, and the probable reason is that: the particle size of the nano silver oxide is 5-7nm, the particle size of the silicon powder is 1300-1500 meshes, the nano silver oxide can be loaded in the silicon powder, and meanwhile, the nano silver oxide can not be dissolved out easily, so that the contact of the nano silver and oxygen can be reduced, the oxidative discoloration of the nano silver can be avoided, meanwhile, the nano silver can be continuously dissolved out after being loaded on the silicon powder, the surface concentration of the dissolved nano silver is reduced, the slow release effect is generated, the time of the mildew inhibition effect is prolonged, and the safe use of the plastic toy is ensured.
The invention provides a plastic toy made of a safe-to-use plastic composition, which comprises a toy main body, wherein an arc-shaped body is arranged below the toy main body, a seat part is arranged above the toy main body, a front shielding piece is arranged in front of the seat part, and a rear shielding piece is arranged behind the seat part.
In a preferred embodiment, the arc of the arc-shaped body is pi/3 to 2 pi/3.
In a preferred embodiment, the front shielding piece is 15-20cm higher than the seat part, the rear shielding piece is 10-15cm higher than the seat part, and handles are further arranged on two sides of the front shielding piece.
The applicant finds that when the radian of the arc-shaped body of the plastic toy is pi/3-2 pi/3 in the experimental process, the toy can stably rock back and forth, meanwhile, the plastic toy is not easy to incline, and the safety in the using process is high. And the children sit on the seat part, and under the protection of the front shielding piece and the rear shielding piece, the children cannot slide off the seat part, so that the safety of the children during playing is further improved; and be provided with the handle on preceding shielding piece, children can put the hand on the handle in the in-process of playing, practises children's gripping ability to can further increase the security.
As a preferred embodiment, the method for preparing a plastic toy made of a safe-to-use plastic composition comprises the steps of: adding all the preparation raw materials into a mixer for mixing, banburying by an internal mixer at the banburying temperature of 200-210 ℃, reacting for 15-30min, extruding by an extruder to obtain plastic composition particles, melting and pressing the plastic composition particles, and cooling and shaping to obtain the plastic toy.
Compared with the prior art, the invention has the following beneficial effects:
(1) The plastic composition safe to use is prepared by adopting the following components in a weight ratio of 1.145:0.764: the combination of the thermoplastic resins of PP, PE and CPE of 0.038 ensures that the prepared plastic composition has good toughness and wear resistance, and prolongs the service life of the prepared plastic toy.
(2) According to the safe-to-use plastic composition, the 5-7nm nano silver and the 1300-1500 mesh silicon powder are added, so that the prepared plastic composition has good mildew-proof property, the prepared plastic toy is prevented from mildewing in the long-time use process, and the use safety is improved.
(3) The safe-to-use plastic composition is prepared by adding 1: the combination of (80-90) nano silver and silicon powder ensures that the nano silver has good color stability, is not easy to generate discoloration and oxidation problems in the long-time use process, and has higher safety in the use process.
Drawings
Fig. 1 is a schematic view of a plastic toy made of a safe-to-use plastic composition.
In the figure: 1. a toy body; 2. an arc-shaped body; 3. a seat portion; 4. a front shield; 5. a rear shield; 6. a handle.
Detailed Description
The present invention will be specifically described below by way of examples. It is to be noted that the following examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as many insubstantial modifications and variations of the invention described above will now occur to those skilled in the art.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
A plastic composition safe to use is prepared from the following raw materials in parts by weight: 1.974 parts of thermoplastic resin, 0.095 part of toughening agent, 0.04 part of mildew preventive, 3.9 parts of mineral filler, 0.038 part of release agent and 0.019 part of stabilizer.
The thermoplastic resin is a combination of PP, PE and CPE, and the weight ratio is 1.145:0.764:0.038, said polypropylene having a designation of 225, available from Ningbo Ming Yu plastification, inc.; the polyethylene is Kunlun brand low density polyethylene, purchased from Lanzhou petrochemical division; the chlorinated polyethylene is 135A and is purchased from Jiangsu san Lu chemical technology Co.
The toughening agent is POE (polyolefin elastomer) with the trade name of Exxon 6202, and is purchased from New materials of hundred million Jia sources of Suzhou.
The mildew preventive solution is a nano-silver solution, the particle size of the nano-silver is 5nm, and the nano-silver solution is purchased from Guangdong praise mildew-proof technology Limited company.
The mineral filler is silicon powder and C material, and the weight ratio is 3.6:0.3, the particle size of the silicon powder is 1400 meshes, the silicon powder is purchased from Yongshun New Material science and technology Limited of Jiangsu, and the C material is a C1-C5 material, a C1 material, a C2 material, a C3 material, a C4 material, wherein the weight ratio of the C5 material is 1:1:1:1:1, the C1 material is aluminum oxide, is purchased from Nantong Runfeng petrochemical company Limited, the C2 material is magnesium oxide and is purchased from Henghai magnesium industry Limited in Liang of cloud, the C3 material is paraffin, is purchased from Shandong Jinghao chemical company Limited, the C4 material is zinc stearate, is purchased from Heizhou city Lehua commercial and trade company Limited, the C5 material is ceramic micropowder, is purchased from Shanghai Jing ya nanometer new material company Limited.
The release agent is stearic acid, the model is SA-1801, and is purchased from Nantong sand and chemical technology company Limited.
The stabilizer is paraffin wax, the model is Kunlun No. 58, and the stabilizer is purchased from Gaoyi Cyclobo chemical engineering Co.
A plastic toy made of a plastic composition safe to use comprises a toy main body 1, wherein an arc-shaped body 2 is arranged below the toy main body 1, the radian of the arc-shaped body 2 is pi/3-2 pi/3, a seat portion 3 is arranged above the toy main body 1, a front shielding piece 4 is arranged in front of the seat portion 3, the front shielding piece 4 is 20cm higher than the seat portion 3, a rear shielding piece 5 is arranged behind the seat portion 3, the rear shielding piece 5 is 10cm higher than the seat portion 3, and handles 6 are further arranged on two sides of the front shielding piece 4.
The preparation method of the plastic toy made of the safe-to-use plastic composition comprises the following steps: adding all the preparation raw materials into a mixer for mixing, banburying by an internal mixer at the banburying temperature of 210 ℃ for 25min, extruding by an extruder to prepare plastic composition particles, performing melt pressing on the plastic composition particles, and cooling and shaping to obtain the plastic toy.
Example 2
A safe-to-use plastic composition, comprising the following steps in the same manner as in example 1, wherein the thermoplastic resin is a combination of PP, PE and CPE in a weight ratio of 2.1:0.764:0.02
A plastic toy made of a safe-to-use plastic composition, the detailed part structure referring to example 1.
Example 3
A plastic composition safe to use, the specific procedure is the same as in example 1, except that the particle size of the silicon powder is 1000 mesh.
A plastic toy made of a safe-to-use plastic composition, the detailed part structure referring to example 1.
Example 4
A plastic composition which is safe to use is prepared by the same steps as in example 1, except that the particle size of the antifungal agent is 45nm.
A plastic toy made of a safe-to-use plastic composition, the detailed part structure referring to example 1.
Performance test
1. Tensile strength: the tensile strength of the plastic composition prepared was tested according to GB/T1040 standard using a universal tensile tester at 50mm/min.
2. Wear resistance: the abrasion resistance of the plastics composition prepared is tested in accordance with the GB/T3960-1983 standard, the abrasion volume of the test specimen is recorded, abrasion volume V = (mass of test specimen before test-mass of test specimen after test)/density of the test specimen at 23 ℃.
3. Mildew resistance: the mildew resistance of the plastic composition prepared according to the GB/T24128-2009 standard test is tested, the growth of the mildew on the surface of a sample is recorded, and no mildew grows: level 0; trace growth (< 10% mildew area): grade 1; little growth (the area of the long mold is more than or equal to 10 percent and less than 30 percent): 2, level; moderate growth (mildew area is more than or equal to 30% and less than 60%): 3, grade; severe growth (area of mildew is more than or equal to 60% and less than or equal to 100%): and 4, level.
4. Bending strength: the bending strength of the plastic composition prepared according to the GB/T19341 standard is tested by using a universal tensile testing machine under the test condition of 2mm/min.
The examples were tested according to the above criteria and the results are shown in table 1.
TABLE 1
| Tensile strength/MPa | Abrasion resistance/cm 3 | Mildew resistance | Flexural Strength/MPa | |
| Example 1 | 8.027 | 0.1 | Level 0 | 13.722 |
| Example 2 | 7.552 | 0.4 | Level 0 | 11.553 |
| Example 3 | 7.563 | 0.35 | Level 1 | 11.821 |
| Example 4 | 7.895 | 0.15 | |
12.678 |
Claims (10)
1. The plastic composition safe to use is characterized by comprising the following preparation raw materials in parts by weight: 1.5-3 parts of thermoplastic resin, 0.05-0.15 part of toughening agent, 0.01-0.05 part of mildew inhibitor, 2-5 parts of mineral filler, 0.02-0.08 part of release agent and 0.01-0.03 part of stabilizer.
2. A plastic composition safe for use according to claim 1, wherein the thermoplastic resin is selected from one or a combination of PP, PE, CPE, PS, ABS, PC, PU and PET.
3. A plastic composition safe for use according to claim 1, wherein the toughening agent is selected from one or more of POE, SBS, MBS, and EVA.
4. The plastic composition safe in use according to claim 1, wherein the mildew preventive is a mildew preventive solution selected from one or more of a nano silver solution, a zinc oxide solution, a titanium dioxide solution, a copper sulfate solution and an iron sesquioxide solution.
5. A plastic composition safe in use according to claim 4, wherein the solute in the solution of the fungicide is powder, and the particle size of the powder is 5-10nm.
6. A plastic composition safe for use according to claim 1, wherein the mineral filler is silicate, and the silicate is selected from one or more of silica powder, talcum powder, calcium silicate, montmorillonite, bentonite, mica powder, glass fiber, asbestos, and material C.
7. A safe-to-use plastic composition as claimed in claim 6, wherein the silica powder has a particle size of 1300-1600 mesh.
8. A plastic toy made of the safe-to-use plastic composition as claimed in any one of claims 1 to 7, comprising a toy body, wherein an arc-shaped body is arranged below the toy body, a seat part is arranged above the toy body, a front shielding member is arranged in front of the seat part, and a rear shielding member is arranged behind the seat part.
9. A plastic toy made of a safe-to-use plastic composition according to claim 8, characterized in that the arc of said arc-shaped body is pi/3-2 pi/3.
10. A plastic toy made of a safe-to-use plastic composition as claimed in claim 8, wherein the front shield is 15-20cm higher than the seat, the rear shield is 10-15cm higher than the seat, and handles are provided on both sides of the front shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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