CN112961432A - Injection molding thermoplastic material for replacing metal card taking needle and card taking needle prepared from thermoplastic material - Google Patents
Injection molding thermoplastic material for replacing metal card taking needle and card taking needle prepared from thermoplastic material Download PDFInfo
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- CN112961432A CN112961432A CN202110170217.7A CN202110170217A CN112961432A CN 112961432 A CN112961432 A CN 112961432A CN 202110170217 A CN202110170217 A CN 202110170217A CN 112961432 A CN112961432 A CN 112961432A
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- CN
- China
- Prior art keywords
- thermoplastic material
- injection molding
- card taking
- taking needle
- metal
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- 239000012815 thermoplastic material Substances 0.000 title claims abstract description 26
- 238000001746 injection moulding Methods 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- -1 Polyethylene Polymers 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 229920006324 polyoxymethylene Polymers 0.000 claims description 6
- 239000012744 reinforcing agent Substances 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000012745 toughening agent Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920001230 polyarylate Polymers 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- ATKFMEGWDYLXBP-UHFFFAOYSA-N 2-(2,4,5-trichlorophenoxy)ethanol Chemical compound OCCOC1=CC(Cl)=C(Cl)C=C1Cl ATKFMEGWDYLXBP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 2
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 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
- 150000001993 dienes Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229920005680 ethylene-methyl methacrylate copolymer Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004811 fluoropolymer Substances 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 2
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-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
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 claims description 2
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 2
- 150000003440 styrenes Chemical class 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 150000007970 thio esters Chemical class 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 150000003673 urethanes Chemical class 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 claims 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims 1
- 150000004812 organic fluorine compounds Chemical class 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000001993 wax Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 6
- 239000000049 pigment Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002715 modification method Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 1
- 101100501135 Escherichia coli O157:H7 ehaG gene Proteins 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 101000666896 Homo sapiens V-type immunoglobulin domain-containing suppressor of T-cell activation Proteins 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- 102100038282 V-type immunoglobulin domain-containing suppressor of T-cell activation Human genes 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 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 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- IJJVMEJXYNJXOJ-UHFFFAOYSA-N fluquinconazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1N1C(=O)C2=CC(F)=CC=C2N=C1N1C=NC=N1 IJJVMEJXYNJXOJ-UHFFFAOYSA-N 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
- C08L59/02—Polyacetals containing polyoxymethylene sequences only
-
- 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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
Abstract
The invention belongs to the field of electronic equipment, and particularly relates to an injection molding thermoplastic material for replacing a metal card taking needle and a card taking needle prepared from the same. The invention utilizes a thermoplastic plastic modification method, adds composite materials, improves the impact property, tensile strength, steel toughness balance property and the like of the materials, utilizes an injection molding scheme to provide convenient and rapid molding processing, replaces the traditional metal card taking needle multi-process steps to realize a one-step injection molding method, can add various pigment toners to ensure the color diversity of the small card taking needle, and has the advantages of convenient and rapid recycling of the thermoplastic materials, high recycling rate, energy conservation and environmental protection.
Description
Technical Field
The invention belongs to the field of electronic equipment, and particularly relates to an injection molding thermoplastic material for replacing a metal card taking needle and a card taking needle prepared from the same.
Background
The card taking needle is a card taking tool equipped for part of high-end mobile phones/tablet computers at present. The card-taking mode is designed for the mobile phones with the batteries which can not be detached and the internal space saved. Generally, the mobile phones use card models (such as micro SIM cards and nano SIM cards) smaller than a common SIM card, the card slot is usually located on the side of the mobile phone body, and a hole-shaped switch (an open hole) designed for taking the card is left, and the mobile phones are commonly used in various models of commercially available apple mobile phones, samsung mobile phones, huashi mobile phones and european/vow mobile phones (such as micro SIM cards and nano SIM cards).
At present, the metal card taking needle in the market has complicated processing steps, and the common processing technology comprises the following steps: laser cutting, punch forming, machine tool machining, and bending). Compared with the integral injection molding of thermoplastic plastics, the scheme that all produced leftover materials and defective products can be recycled by 100 percent; at present, the material cost and the processing steps of the metal card taking needle are more complicated, the process is complex and changeable, the requirements and the investment on production personnel are higher in multi-process production, and the cost for processing leftover materials of produced metal materials is greatly examined for enterprises and resource recovery departments.
At present, a small part of flow plastic card taking needles injected by unmodified resin are available in the market, the strength and toughness of each thermoplastic resin are not good, and the problems of deformation, warping, fracture and the like of the card taking are easily caused by the unmodified material or the material with too high rigidity and too low toughness.
Disclosure of Invention
In order to solve the problems, the invention utilizes a thermoplastic plastic modification method to add composite materials to improve the impact property, tensile strength, rigidity and the like of the materials, improves the balance of rigidity and toughness of the materials by a modification technology, prevents the situation that the card taking is not smooth and the mobile phone is damaged due to the fact that a card taking needle is inserted and broken, can provide convenient and rapid molding processing by utilizing an injection molding scheme, replaces the traditional metal card taking needle with multiple process steps to realize a one-step injection molding method, can add various pigment toners to ensure the color diversity of the small card taking needle, and has the advantages of high cyclic utilization rate, energy saving and environmental protection.
The present invention provides the following scheme:
a thermoplastic material for replacing metal card needle injection molding is mainly prepared from the following raw materials: thermoplastic, reinforcing agent, coupling agent, compatilizer, antioxidant, lubricant, toughening agent and functional assistant of toner (containing organic and inorganic pigments, carbon black and titanium white powder).
The injection molding thermoplastic material for replacing metal card needles comprises the following components in percentage by mass: 15% -85% of thermoplastic plastics; 15% -70% of a reinforcing agent; 0.1 to 15 percent of coupling agent; 1 to 40 percent of toughening agent, 0.1 to 2 percent of antioxidant, 0.2 to 5 percent of lubricant and 0.01 to 10 percent of toner, wherein the total of the components is 100 percent.
The thermoplastic material is selected from one or more of Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), Polyoxymethylene (POM), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), Polycarbonate (PC), Polyamide (PA), PMMA, ASA, and other Polyphenylene Sulfides (PPs), Polysulfone (PSF), Polyimide (PI), Polyarylate (PAR), Liquid Crystal Polymer (LCP), polyether ether ketone (PEEK), fluoropolymer (PTFE, PVDF, PCTFE, PFA), styrenes (SBS, SIS, SEBS, SEPS), TP0, TPV), dienes (TPB, TPI), vinyl chlorides (TPVC, TCPE), urethanes (TPU), esters (TPEE), amides (TPAE), organic fluorine (TPF), and the like.
The reinforcing agent is selected from one or more of glass fiber, carbon fiber, boron fiber, whisker, talcum powder, kaolin, wollastonite, barium sulfate, mica powder, calcium carbonate, iron powder, montmorillonite, graphene, basalt fiber and the like.
The coupling agent is one or a mixture of more of silane coupling agent, maleic anhydride and isocyanate. The silane coupling agent is usually used in the form of one or more of KH540, KH550, KH560, KH792, A151, A171, Z-6121, Z-6040, etc.
The toughening agent is polypropylene grafted maleic anhydride or GMA, ethylene-methyl methacrylate copolymer, styrene-butadiene-styrene copolymer grafted maleic anhydride (SBS-g-MAH), hydrogenated styrene-butadiene-styrene copolymer grafted maleic anhydride (SEBS-g-MAH), ethylene-octene copolymer grafted maleic anhydride (POE-g-MAH), ethylene propylene diene monomer (EPDM, EPDM-g-MAH) or the like. Preferably (POE-g-MAH), (SEBS-g-MAH); one or more of common Exxelor PO1020, VA1801, VA1803, Exact 9061, VISTA MAX 6202, Hersbit N5009, ENGAGE 8842, ENGAGE 8180, AX8900, HX8290, Kraton1651, and Kraton 1660.
The lubricant is one or more of graphite, PTFE, stearic acid, ethylene bis stearamide, silicone and polyolefin wax.
The antioxidant is selected from hindered phenols, hindered amines, ortho-hydroxyphenyl triazines, organic copper salts, phosphites and thioesters, preferably one or a mixture of two of 1010, 1098, 168, 9228, A0-30, 626, DLTP, DSTP, 1076, 264, H10, H20, H161, H336 and H337.
The toner is one or a mixture of two of titanium dioxide, zinc oxide, zinc sulfide, lithopone, iron oxide pigment, azo pigment, phthalocyanine pigment, ultramarine, ferromanganese, iron oxide red, iron orange, iron yellow, zinc iron yellow, chromium green, chromium yellow, medium chromium yellow, molybdenum chromium red, cadmium yellow, cadmium orange, cadmium red, cobalt blue, bismuth yellow, titanium nickel yellow and cerium red.
The invention adopts the technical scheme, and has the beneficial effects that:
compared with the existing unmodified plastic, the material has the advantages that the tensile property and the flexural modulus of the material are improved and the material is kept rigid by a plastic adding composite material modification means, the problems of deformation and fracture of the card taking needle are prevented in the using process, and the problem that the deformation of the unmodified plastic replaces the traditional complicated processing process of the metal card taking needle is solved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The formulations of inventive examples 1-4 and comparative examples 1-3 are set forth in Table 1:
TABLE 1 formulations of inventive examples 1-4 and comparative examples 1-3
The above materials are commercially available;
the polyolefin is preferably Korean Dadale high impact resistance PP-BJ550
The above-mentioned polyamides preferably have a petrochemical viscosity of 2.8 (PA6-YH800)
The polybutylene terephthalate is preferably blue mountain Tunhe high impact resistant grade (PBT-TH6100)
The polyformaldehyde is a Sealance high impact resistant mark (POM-M90-45)
The preparation method of the card taking needle in the embodiment 1-3 of the invention comprises the following steps:
s1, preparing materials: taking the raw material components according to the formula;
s2, premix: respectively mixing the thermoplastic material resin and the compatilizer for 1min in a low-speed mixer, and then mixing the mixture, the antioxidant, the lubricant and the flexibilizer for 5min in the low-speed mixer to obtain a premix; the main feeding end of the prepared plastic extruder is provided with blanking according to the proportion of the formula;
s3, reinforcing agent (glass fiber or talc): adding the raw materials at the side position of the extruder according to the formula proportion;
s4, melt extrusion (the diameter of a screw of a double-screw extruder is 65mm, and the length-diameter ratio L/D is 43);
example 1: melt extrusion: the premix is melted and extruded at the temperature of 180 ℃ and 225 ℃ by a double-screw extruder; the temperature of each screw cylinder from the charging opening to the machine head is respectively as follows: 195 +/-10 ℃, 200 +/-10 ℃, 210 +/-10 ℃, 220 +/-10 ℃, 210 +/-10 ℃, 205 +/-10 ℃, 180 +/-10 ℃ and 225 +/-10 ℃; the rotating speed of the screw is 300r/min, and the total feeding amount is 200-250 kg/h; and after melt extrusion, granulating in a hot ring cutting mode, and performing air cooling to obtain the thermoplastic material for injection molding instead of a metal taking clamping needle.
Example 2: melt extrusion: the premix is melted and extruded at the temperature of 190 ℃ and 265 ℃ by a double-screw extruder; the temperature of each screw cylinder from the charging opening to the machine head is respectively as follows: 235 plus or minus 10 ℃, 250 plus or minus 10 ℃, 255 plus or minus 10 ℃, 250 plus or minus 10 ℃, 240 plus or minus 10 ℃, 225 plus or minus 10 ℃, 190 plus or minus 10 ℃ and 265 plus or minus 10 ℃; the rotating speed of the screw is 300r/min, and the total feeding amount is 200-250 kg/h; and after melt extrusion, granulating in a hot ring cutting mode, and performing air cooling to obtain the thermoplastic material for injection molding instead of a metal taking clamping needle.
Example 3: melt extrusion: the premix is melted and extruded at the temperature of 220 ℃ and 255 ℃ by a double-screw extruder; the temperature of each screw cylinder from the charging opening to the machine head is respectively as follows: 235 plus or minus 10 ℃, 250 plus or minus 10 ℃, 245 plus or minus 10 ℃, 240 plus or minus 10 ℃, 235 plus or minus 10 ℃, 230 plus or minus 10 ℃, 220 plus or minus 10 ℃ and 255 plus or minus 10 ℃; the rotating speed of the screw is 300r/min, and the total feeding amount is 200-250 kg/h; and after melt extrusion, granulating in a hot ring cutting mode, and performing air cooling to obtain the thermoplastic material for injection molding instead of a metal taking clamping needle.
Example 4: melt extrusion: the premix is melted and extruded at the temperature of 180-215 ℃ by a double-screw extruder; the temperature of each screw cylinder from the charging opening to the machine head is respectively as follows: 200 + -10 deg.C, 215 + -10 deg.C, 210 + -10 deg.C, 205 + -10 deg.C, 200 + -10 deg.C, 180 + -10 deg.C, 215 + -10 deg.C; the rotating speed of the screw is 300r/min, and the total feeding amount is 200-250 kg/h; and after melt extrusion, granulating in a hot ring cutting mode, and performing air cooling to obtain the thermoplastic material for injection molding instead of a metal taking clamping needle.
S5, drying the prepared thermoplastic material for 5 hours at 80 ℃.
S6, processing by an injection molding machine:
example 1, comparative example 1: processing temperature: the nozzle section is 225 plus or minus 10 ℃, the middle section is 215 plus or minus 10 ℃, and the front section is 200 plus or minus 10 ℃.
Example 2, example 3, comparative example 2: processing temperature: the nozzle section is 250 +/-10 ℃, the middle section is 255 +/-10 ℃, and the front section is 235 +/-10 ℃.
Example 4, comparative example 3: processing temperature: the nozzle section is 210 +/-10 ℃, the middle section is 205 +/-10 ℃, and the front section is 190 +/-10 ℃.
Injection molded ISO 527 tensile test for standard bars, and ISO 179 impact test for standard bars, injection molded snap pin plastic test for performance, with the results shown in Table 2.
The clamping pins of comparative examples 1 and 2 are obtained by directly injection molding the relevant plastic materials, and the clamping pins of comparative example 3 are obtained by injection molding polyformaldehyde and glass fibers under the condition of not adding other components, and other conditions are the same as those of the example 4.
TABLE 2 Properties of the knock-out pins of the inventive and comparative examples
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. A thermoplastic material for replacing metal card needle injection molding is characterized by being mainly prepared from the following raw materials: 15% -85% of thermoplastic plastics; 15% -70% of a reinforcing agent; 0.1 to 15 percent of coupling agent; 1 to 40 percent of toughening agent, 0.1 to 2 percent of antioxidant, 0.2 to 5 percent of lubricant and 0.01 to 10 percent of toner, wherein the total of the components is 100 percent.
2. The metal-replacement molding thermoplastic material of claim 1, wherein said thermoplastic material is selected from the group consisting of Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), Polyoxymethylene (POM), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), Polycarbonate (PC), Polyamide (PA), PMMA, ASA, and other Polyphenylene Sulfides (PPs), Polysulfone (PSF), Polyimide (PI), Polyarylate (PAR), Liquid Crystal Polymer (LCP), polyether ether ketone (PEEK), fluoropolymer (PTFE, PVDF, PCTFE, PFA), styrenes (SBS, SIS, SEBS, SEPS), olefins (TP0, TPV), dienes (TPB, TPI), vinyl chlorides (TPVC, TCPE), urethanes (TPU), Esters (TPEE), amides (TPAE), organic fluorine compounds (TPF) and the like.
3. The metal-substituted card needle injection molding thermoplastic material as claimed in claim 1, wherein the reinforcing agent is selected from one or more of glass fiber, carbon fiber, boron fiber, whisker, talc, kaolin, wollastonite, barium sulfate, mica powder, calcium carbonate, iron powder, montmorillonite, graphene, basalt fiber, and the like.
4. The thermoplastic material for injection molding of metal card needle as claimed in claim 1, wherein the coupling agent is one or a mixture of silane coupling agent, maleic anhydride and isocyanate.
5. The metal-substituted bayonet injection-molded thermoplastic material as claimed in claim 1, wherein the toughening agent is one or more of polypropylene-grafted maleic anhydride or GMA, ethylene-methyl methacrylate copolymer, styrene-butadiene-styrene copolymer-grafted maleic anhydride (SBS-g-MAH), hydrogenated styrene-butadiene-styrene copolymer-grafted maleic anhydride (SEBS-g-MAH), ethylene-octene copolymer-grafted maleic anhydride (POE-g-MAH), ethylene propylene diene monomer (EPDM, EPDM-g-MAH), etc.
6. The metal-substituted molding thermoplastic material of claim 1 wherein said lubricant is one or more of stearic acids, ethylene bis stearamide, silicones, polyolefin waxes.
7. The metal-substituted molding thermoplastic material as claimed in claim 1, wherein the antioxidant is selected from one or a mixture of two of hindered phenols, hindered amines, ortho-hydroxyphenyl triazines, organocupronium salts, phosphites and thioesters.
8. The thermoplastic material for injection molding in place of metal card according to claim 1, wherein the toner is selected from one or a mixture of two of titanium dioxide, zinc oxide, zinc sulfide, lithopone, iron oxide, azo, phthalocyanine, ultramarine, ferromanganese, iron oxide, iron red, iron orange, iron yellow, zinc iron yellow, chromium green, chromium yellow, medium chromium yellow, molybdenum chromium red, cadmium yellow, cadmium orange, cadmium red, cobalt blue, bismuth yellow, titanium nickel yellow, and cerium red.
9. Use of a pick-up pin according to any one of claims 1 to 8 for injection moulding of thermoplastic material in place of a metal pick-up pin.
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Application publication date: 20210615 |