CN106810947A - A kind of erasable plastics crayon and its production technology - Google Patents
A kind of erasable plastics crayon and its production technology Download PDFInfo
- Publication number
- CN106810947A CN106810947A CN201611238716.0A CN201611238716A CN106810947A CN 106810947 A CN106810947 A CN 106810947A CN 201611238716 A CN201611238716 A CN 201611238716A CN 106810947 A CN106810947 A CN 106810947A
- Authority
- CN
- China
- Prior art keywords
- parts
- penholder
- weight portions
- plastics
- erasable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 238000005516 engineering process Methods 0.000 title claims description 16
- 239000000049 pigment Substances 0.000 claims abstract description 45
- 239000002994 raw material Substances 0.000 claims abstract description 42
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 33
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 33
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 33
- 210000002615 epidermis Anatomy 0.000 claims abstract description 31
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 26
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 25
- 230000001050 lubricating effect Effects 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 22
- 239000004793 Polystyrene Substances 0.000 claims abstract description 20
- 229920002223 polystyrene Polymers 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000004417 polycarbonate Substances 0.000 claims abstract description 16
- 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 abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000010792 warming Methods 0.000 claims description 35
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- -1 polytetrafluoroethylene Polymers 0.000 claims description 21
- 239000008188 pellet Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 10
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 10
- 239000004425 Makrolon Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 claims description 5
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000001530 fumaric acid Substances 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920002972 Acrylic fiber Polymers 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- VOOLKNUJNPZAHE-UHFFFAOYSA-N formaldehyde;2-methylphenol Chemical compound O=C.CC1=CC=CC=C1O VOOLKNUJNPZAHE-UHFFFAOYSA-N 0.000 claims description 2
- 150000002688 maleic acid derivatives Chemical class 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 239000007998 bicine buffer Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- 229920006389 polyphenyl polymer Polymers 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 239000002023 wood Substances 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002742 anti-folding effect Effects 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 7
- 229920002472 Starch Polymers 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000004626 polylactic acid Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 239000000805 composite resin Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000004632 polycaprolactone Substances 0.000 description 2
- 229920001610 polycaprolactone Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 231100000611 venom Toxicity 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- GLLRIXZGBQOFLM-UHFFFAOYSA-N Xanthorin Natural products C1=C(C)C=C2C(=O)C3=C(O)C(OC)=CC(O)=C3C(=O)C2=C1O GLLRIXZGBQOFLM-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920000704 biodegradable plastic Polymers 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 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
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic 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
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 1
- 229920000903 polyhydroxyalkanoate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000011787 zinc oxide Substances 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0023—Combinations of extrusion moulding with other shaping operations combined with printing or marking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/16—Making non-propelling pencils
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The present invention relates to a kind of erasable plastics crayon, including penholder, epidermis and pen core, the pen core includes the raw material of following parts by weight：20 30 parts of polystyrene, 10 20 parts of SBS, 30 50 parts of talcum powder, 10 20 parts of pigment, 15 parts of pigment dispersing agents, 15 parts of lubricating auxiliary agents, 23 parts of rosin series resins, 0.5 1 parts of fibers, 35 parts of silicon substrate hydrophobic solid lubricants and 36 parts of modified polycarbonates.The present invention uses macromolecular material, the pencil for producing reliably is formulated according to science has the physical and mechanical property and cutting ability of Wood pencil, and drop resistant, anti-folding write lubricious, concentration, abrasion appropriateness, and the characteristics of all kinds of processing and formings can be carried out in common process equipment.
Description
Technical field
The invention belongs to a field, it is related to a kind of plastics crayon, more particularly to a kind of environmentally friendly, smooth, pen core coloring is more
Uniformly, attractive in appearance, the erasable plastics crayon that drawing is more smooth and its production technology.
Background technology
Pencil is a kind of instrument for writing and painting applied widely, and its primary structure is mounted in by strip lead for retractable pencil
Constituted in penholder.The penholder of pencil is commonly using wooden, it usually needs log is done into circular, regular hexagon or positive eight side
The penholder of the shapes such as shape, its manufacture is needed by many cutting actions, and production process is quite cumbersome, is more expensive to manufacture, and
Substantial amounts of high-quality timber need to be consumed.At present, China produces Wood pencil 8,000,000,000 or so per year, equivalent to destroying 600 squares of public affairs every year
In forest, consume 40 ten thousand stere high-quality timber, the consumption of a large amount of forest reserves seriously destroys ecological environment.In addition, being
The penholder of different colours is produced, Wood pencil need to carry out spary, so inevitably produce using paint to its outer surface
Raw heavy metal, the pollution problem of venomous injurant, this for the penholder close with human contact, a undoubtedly big drawback,
It is more sensitive for paint produced pollution problem especially for some young childrens.
In order to reduce consumption of wood, trial develops various types of penholders and is used as replacing for wood pen holder for pencil manufacturer
Dai Pin, however, up to the present, using various alternative materials manufacture penholder during still have it is many it is not fully up to expectations it
Place.Such as papery penholder, because the raw material that papery penholder is used is still timber, without the fundamentally solution wasting of resources
Problem；Such as gypsum penholder, because the quality of gypsum is more crisp, thus the easy brittle failure of such penholder, it is also possible to during use
Produce break flour, practical inconvenience；Such as plastic penholder, the plastic raw materials of use are non-renewable fossil resources, and in raw material
Great amount of carbon dioxide can be produced in production process and discarded rear burning process, greenhouse effects are caused.
Application No. CN200510047091.5, it is entitled《Resin composite material pencil》Patent of invention disclose one kind
Resin composite material pencil, penholder is made up of by weight ratio following compositions：50~70 parts of aqueous polyurethane, food starch
10~20 parts, 5~10 parts of glass microballoon, 0.1~1 part of nano titanium oxide, 0.5~3 part of nano zine oxide, zinc stearate 1~5
Part, 10~15 parts of precipitated calcium carbonate, 5~10 parts of flexible unsaturated polyester resin, the invention mainly use resin, starch and carbonic acid
Raw material makes penholder based on calcium, because aqueous polyurethane proportion is much higher than starch and calcium carbonate, so it is real
Border is haveed the shortcomings that not environmentally as plastic penholder, it is also possible to more plastic raw materials are substituted by increasing calcium carbonate,
But, if calcium carbonate addition amount more than 50%, it is necessary to add white oil, and the addition of white oil can make penholder produce a huge sum of money
Belong to content overproof risk, this for the penholder close with human contact, undoubtedly another big disadvantage.
Application No. 200810066764.5, it is entitled《Degradable pencil holder, pencil and its manufacture method》Invention
Patent discloses a kind of degradable pencil holder and the pencil using this penholder, and penholder component is poly- including 40wt%~60wt%
Hydroxy fatty acid, 30wt%~50wt% starch, 1wt%~10wt% crosslinking agents and 1wt%~10wt% plasticizer, its
In, wt% is weight percent；The invention also provides a kind of manufacture method of pencil, and step includes raw material mixing, heating, punching
Shaping.Degradable pencil holder involved by the invention mainly uses Biodegradable material, such as Poly-β-hybroxybutyric, poly-
Lactic acid and polycaprolactone, the penholder asepsis environment-protecting manufactured using said components can substitute wood pen holder, reduce wood
Material is consumed.In the prior art, common Biodegradable material is broadly divided into biological point of petroleum base biological decomposition plastics, bio-based
The solution major class of plastics two, petroleum base biological decomposition plastics are mainly with petroleum chemicals as monomer, are obtained by the method for chemical synthesis
One birds of the same feather flock together compound, such as polycaprolactone, poly-succinic acid-butanediol fat, polyvinyl alcohol, poly terephthalic acid/adipic acid/butanediol
Copolymer etc., such material is due to being that, with oil as raw material, price is easily fluctuated and raised up by oil price, and due to such material
The biodegradable performance of material so that it is higher that its price is compared to common plasticses；Bio-based biological decomposition plastics are with natural
Material participates in the polymer that the polymer that obtains or microorganism are directly synthesized jointly by microbial fermentation and chemical synthesis, leads
There are PLA, poly hydroxyalkanoate etc., PLA being directly synthesized by microorganism etc. is relative complex due to its technique, produce
One ton of PLA will consume 4 ton-grain food, therefore the market price is higher than conventional plastic 2~3 times now, simultaneously because its product is present
The problems such as heat resistance, poor physical property, it is currently used primarily in the production of shopping bag.Therefore, using biodegradable plastic raw material
Manufacture penholder cost is too high, does not meet common people's market demand, it is difficult to popularize.
The content of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of environmentally friendly, smooth, pen core to colour more uniform, U.S.
The erasable plastics crayon and its production technology see, painted more smooth, substitute traditional Wood pencil, can solve Wood pencil consumption
The not energy-conservation problem also not environmentally such as a large amount of timber resources, the spary that needs painting colouring, also, tree of the prior art can be solved
Resin content that resin composite material pencil is used it is high not environmentally and the manufacture of degradation plastic raw material pencil high cost, physical
Can be poor the problems such as.
To achieve these goals, the present invention uses following technical scheme：
A kind of erasable plastics crayon, including penholder, epidermis and pen core, the pen core include the raw material of following parts by weight：20-30
Part polystyrene, 10-20 parts of SBS, 30-50 part of talcum powder, 10-20 parts of pigment, 1-5 parts of pigment dispersing agent, 1-5 parts of lubrication are helped
Agent, 2-3 parts of rosin series resin, 0.5-1 parts of fiber, 3-5 parts of silicon substrate hydrophobic solid lubricant and 3-6 parts of modified polycarbonate.
In the technical program, the addition of fiber so that during writing forms a netted fiber knot in paper surface
Structure, prevents pigment to the infiltration in fiber；And the addition of rosin series resin is then further increased and prevents pigment in fiber
Infiltration；The addition of silicon substrate hydrophobic solid lubricant, serves the effect of mould release between pencil pigment and paper so that
In pigment and paper in fiber combine loosely, reached the purpose that can be wiped.
Preferably, fiber is the one kind in polytetrafluoroethylene fibre, aramid fiber, acrylic fiber.In the technical program
In, the addition of fiber so that during writing forms a netted fibre structure in paper surface, prevents face
Expect to the infiltration in fiber.
Preferably, silicon substrate hydrophobic solid lubricant is polysiloxanes or derivatives thereof.
Preferably, lubricating auxiliary agent is at least one in ethylene bis stearamide, polyethylene glycol, stearic acid, paraffin.
Preferably, penholder includes the raw material of following parts by weight：20-30 parts of polystyrene, 10-20 parts SBS, 5-10 part
Polyethylene, 40-60 part talcum powder, 10-20 parts of pigment, 1-5 parts of pigment dispersing agent, 1-5 parts of lubricating auxiliary agent and 1-5 parts of coupling agent,
Epidermis includes the raw material of following parts by weight：50-60 parts of polystyrene, 10-25 parts of polypropylene, 10-25 parts of pigment and 1-6 parts of profit
Sliding auxiliary agent.
Preferably, the method for modifying of modified polycarbonate is：10 weight portions are added in the makrolon of 150 weight portions
The husky mica powder with 15 weight portions of zirconium English, cospinning prepares preliminary modified makrolon, then by its mass ratio 1:4 add
Enter o-cresol formaldehyde epoxy resin, be warming up to 350 DEG C, modified polycarbonate is obtained after insulation 10-30min.
Preferably, the rosin series resin is rosin modified phenolic resin, rosin modified alkyd resin or Abietyl modified
Maleic acid resin.
Preferably, the preparation method of rosin modified phenolic resin is：
A, the aluminum trichloride (anhydrous) addition reactor by the p-t-butyl phenol of 200-250 weight portions and 3-5 weight portions, are warming up to
60 DEG C -70 DEG C, the solid formaldehyde of 100-120 weight portions, adjustment solution is added to be warming up to 100 DEG C -115 to alkalescence while stirring
DEG C, react 4-5 hours；
B, the fumaric acid to the rosin of addition 700-850 weight portions and 70-85 weight portions in the reactor, are warming up to
140 DEG C -155 DEG C, react -5 hours 4.5 hours；
C, in the reactor add 150-180 weight portions sorbierite and 1-2 weight portions metaphosphoric acid, be warming up to 180 DEG C-
200 DEG C, react -2.5 hours 2 hours, be continuously heating to 230 DEG C -240 DEG C, react -2 hours 1 hour.
A kind of production technology of erasable plastics crayon, the production technology is comprised the following steps：
A) penholder raw material and epidermis raw material are separately added into Granulation Equipments granulation to obtain pellet standby；
B) polystyrene of pen core raw material, SBS, pigment and pigment dispersing agent add banburying storehouse, open heater and are warming up to 80
DEG C, 20min is incubated, lubricating auxiliary agent, rosin series resin, fiber, silicon substrate hydrophobic solid lubricant are subsequently adding with modified poly- carbon
Acid esters, is warming up to 110 DEG C, and 180 DEG C are continuously heating to after insulation 30min, and talcum powder is added after mixing 1h, continues to knead 30min,
Then granulate；
C) the penholder pellet for obtaining step a) adds penholder extruder, epidermis pellet to add epidermis extruder；Step b) is obtained
The pen core pellet that arrives adds pen core extruder, extrusion pen core be rapidly introduced into installed in 3 co-extrusions of the discharging opening of extruder into
In pattern tool, then start penholder extruder, wrap pen core, restart epidermis extruder, wrap penholder, by rule after cooling
Measured length cuts off, and is then typewrited, fined away, cleaning, drying and packaging and storage.
The beneficial effects of the invention are as follows：
(1), the present invention uses macromolecular material, and the pencil for producing reliably is formulated according to science has the physics of Wood pencil
Mechanical property and cutting ability, drop resistant, anti-folding, write lubricious, concentration, abrasion appropriateness, and can be enterprising in common process equipment
The characteristics of all kinds of processing and formings of row；
(2), painted by a skin extruder, the penholder of different colours can be produced according to user's selection, product health is nontoxic, thorough
Eliminate paint in bottom, it is to avoid the pollution problem that Wood pencil need to paint printing and produce, eliminate venomous injurant to human body
Infringement；
(3), squeezed using penholder extruder, 3 equipment of a skin extruder and lead for retractable pencil extruder and close one-shot forming, it is automatically controlled to select color, system
Method process is simple and convenient and easy, the pencil exquisite appearance of production are made, to cut hardness not moderate for core shift, disconnected core, volume, overcomes wood
The viscous seam of rod pencil comes unglued, and negative and positive plate is coarse with coloring to wait not enough, and high degree of automation, and production efficiency is compared with Wood pencil
It is significantly increased；
(4) production process will not produce pollution, discarded object also can harmless treatment, the plastic material can be recycled, protect
Ecology, non-environmental-pollution；
(5) energy-conservation, low-carbon (LC), the pencil of environmentally friendly concept that the present invention is realized in China's usage amount greatly, give birth on a large scale by suitable factory
Produce, it is contemplated that economy, the ecological, environmental protective benefit of billions of units can be brought for country every year.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.It should be appreciated that this hair
Bright implementation is not limited to the following examples, and any formal accommodation and/or change made to the present invention will all fall
Enter the scope of the present invention.
In the present invention, if not refering in particular to, all of part, percentage are unit of weight, equipment and raw material for being used etc.
It is commercially available or commonly used in the art.Method in following embodiments, unless otherwise instructed, is the normal of this area
Rule method.
Pigment used can be inorganic or organic pigment, wherein organic pigment C.I. pigment yellows 93,95；C.I. pigment orange
34、36；C.I. pigment red 122,202；C.I. pigment blue 15:3、15:4；C.I. pigment violet 19,23；C.I. pigment black 7；
Inorganic pigment can be titanium oxide, aluminum oxide, zinc oxide, mica, aluminium micropowder；
Embodiment 1
A kind of erasable plastics crayon, including penholder, epidermis and pen core, the pen core include the raw material of following parts by weight：20 parts
Polystyrene, 10 parts of SBS, 30 parts of talcum powder, 10 parts of pigment, 1 part of pigment dispersing agent, 1 part of lubricating auxiliary agent, 2 parts of rosin series resins,
0.5 part of aramid fiber, 3 parts of silicon substrate hydrophobic solid lubricants and 3 parts of modified polycarbonates.Silicon substrate hydrophobic solid lubricant is
Polysiloxanes or derivatives thereof.Lubricating auxiliary agent is ethylene bis stearamide.
Penholder includes the raw material of following parts by weight：20 parts of polystyrene, 10 parts of SBS, 5 parts of polyethylene, 40 parts of talcum powder,
10 parts of pigment, 1 part of pigment dispersing agent, 1 part of lubricating auxiliary agent and 1 part of coupling agent, epidermis include the raw material of following parts by weight：50 parts
Polystyrene, 10 parts of polypropylene, 10 parts of pigment and 1 part of lubricating auxiliary agent.
The method of modifying of modified polycarbonate is：Add the zirconium English of 10 weight portions husky in the makrolon of 150 weight portions
With the mica powder of 15 weight portions, cospinning prepares preliminary modified makrolon, then by its mass ratio 1:4 add orthoresol
Formaldehyde epoxy resin, is warming up to 350 DEG C, and modified polycarbonate is obtained after insulation 10min.
The rosin series resin is rosin modified phenolic resin.
The preparation method of rosin modified phenolic resin is：
A, the aluminum trichloride (anhydrous) addition reactor by the p-t-butyl phenol of 200 weight portions and 3 weight portions, are warming up to 60 DEG C,
The solid formaldehyde of 100 weight portions, adjustment solution is added to be warming up to 100 DEG C to alkalescence, react 4 hours while stirring；
B, to the rosin and the fumaric acid of 70 weight portions that 700 weight portions are added in the reactor, be warming up to 140 DEG C, instead
Answer 4.5 hours；
C, to the sorbierite and the metaphosphoric acid of 1 weight portion that 150 weight portions are added in the reactor, be warming up to 180 DEG C, reaction 2
Hour, 230 DEG C are continuously heating to, react 1 hour.
A kind of production technology of erasable plastics crayon, the production technology is comprised the following steps：
A) penholder raw material and epidermis raw material are separately added into Granulation Equipments granulation to obtain pellet standby；
B) polystyrene of pen core raw material, SBS, pigment and pigment dispersing agent add banburying storehouse, open heater and are warming up to 80
DEG C, 20min is incubated, lubricating auxiliary agent, rosin series resin, fiber, silicon substrate hydrophobic solid lubricant are subsequently adding with modified poly- carbon
Acid esters, is warming up to 110 DEG C, and 180 DEG C are continuously heating to after insulation 30min, and talcum powder is added after mixing 1h, continues to knead 30min,
Then granulate；
C) the penholder pellet for obtaining step a) adds penholder extruder, epidermis pellet to add epidermis extruder；Step b) is obtained
The pen core pellet that arrives adds pen core extruder, extrusion pen core be rapidly introduced into installed in 3 co-extrusions of the discharging opening of extruder into
In pattern tool, then start penholder extruder, wrap pen core, restart epidermis extruder, wrap penholder, by rule after cooling
Measured length cuts off, and is then typewrited, fined away, cleaning, drying and packaging and storage.
Embodiment 2
A kind of erasable plastics crayon, including penholder, epidermis and pen core, the pen core include the raw material of following parts by weight：22 parts
Polystyrene, 15 parts of SBS, 48 parts of talcum powder, 17 parts of pigment, 3 parts of pigment dispersing agents, 2 parts of lubricating auxiliary agents, 2.4 parts of rosin series trees
Fat, 0.8 part of acrylic fiber, 4 parts of silicon substrate hydrophobic solid lubricants and 5 parts of modified polycarbonates.Silicon substrate hydrophobic solid lubricates
Agent is polysiloxanes or derivatives thereof.Lubricating auxiliary agent is polyethylene glycol.
Penholder includes the raw material of following parts by weight：23 parts of polystyrene, 12 parts of SBS, 7 parts of polyethylene, 45 parts of talcum powder,
15 parts of pigment, 3 parts of pigment dispersing agents, 2 parts of lubricating auxiliary agents and 3 parts of coupling agents, epidermis include the raw material of following parts by weight：55 parts
Polystyrene, 18 parts of polypropylene, 17 parts of pigment and 3 parts of lubricating auxiliary agents.
The method of modifying of modified polycarbonate is：Add the zirconium English of 10 weight portions husky in the makrolon of 150 weight portions
With the mica powder of 15 weight portions, cospinning prepares preliminary modified makrolon, then by its mass ratio 1:4 add orthoresol
Formaldehyde epoxy resin, is warming up to 350 DEG C, and modified polycarbonate is obtained after insulation 20min.
The rosin series resin is rosin modified phenolic resin.
The preparation method of rosin modified phenolic resin is：
A, the aluminum trichloride (anhydrous) addition reactor by the p-t-butyl phenol of 220 weight portions and 4 weight portions, are warming up to 65 DEG C,
The solid formaldehyde of 110 weight portions, adjustment solution is added to be warming up to 110 DEG C to alkalescence, react 4.5 hours while stirring；
B, to the rosin and the fumaric acid of 80 weight portions that 750 weight portions are added in the reactor, be warming up to 145 DEG C, instead
Answer 5 hours；
C, to the sorbierite and the metaphosphoric acid of 1.5 weight portions that 165 weight portions are added in the reactor, be warming up to 190 DEG C, reaction
2.5 hours, 235 DEG C are continuously heating to, reacted 1.5 hours.
A kind of production technology of erasable plastics crayon, the production technology is comprised the following steps：
A) penholder raw material and epidermis raw material are separately added into Granulation Equipments granulation to obtain pellet standby；
B) polystyrene of pen core raw material, SBS, pigment and pigment dispersing agent add banburying storehouse, open heater and are warming up to 80
DEG C, 20min is incubated, lubricating auxiliary agent, rosin series resin, fiber, silicon substrate hydrophobic solid lubricant are subsequently adding with modified poly- carbon
Acid esters, is warming up to 110 DEG C, and 180 DEG C are continuously heating to after insulation 30min, and talcum powder is added after mixing 1h, continues to knead 30min,
Then granulate；
C) the penholder pellet for obtaining step a) adds penholder extruder, epidermis pellet to add epidermis extruder；Step b) is obtained
The pen core pellet that arrives adds pen core extruder, extrusion pen core be rapidly introduced into installed in 3 co-extrusions of the discharging opening of extruder into
In pattern tool, then start penholder extruder, wrap pen core, restart epidermis extruder, wrap penholder, by rule after cooling
Measured length cuts off, and is then typewrited, fined away, cleaning, drying and packaging and storage.
Embodiment 3
A kind of erasable plastics crayon, including penholder, epidermis and pen core, the pen core include the raw material of following parts by weight：30 parts
Polystyrene, 20 parts of SBS, 50 parts of talcum powder, 20 parts of pigment, 5 parts of pigment dispersing agents, 5 parts of lubricating auxiliary agents, 3 parts of rosin series resins,
1 part of polytetrafluoroethylene fibre, 5 parts of silicon substrate hydrophobic solid lubricants and 6 parts of modified polycarbonates.Silicon substrate hydrophobic solid lubricates
Agent is polysiloxanes or derivatives thereof.Lubricating auxiliary agent is paraffin.
Penholder includes the raw material of following parts by weight：30 parts of polystyrene, 20 parts of SBS, 10 parts of polyethylene, 60 parts of talcums
Powder, 20 parts of pigment, 5 parts of pigment dispersing agents, 5 parts of lubricating auxiliary agents and 5 parts of coupling agents, epidermis include the raw material of following parts by weight：
60 parts of polystyrene, 25 parts of polypropylene, 25 parts of pigment and 6 parts of lubricating auxiliary agents.
The method of modifying of modified polycarbonate is：Add the zirconium English of 10 weight portions husky in the makrolon of 150 weight portions
With the mica powder of 15 weight portions, cospinning prepares preliminary modified makrolon, then by its mass ratio 1:4 add orthoresol
Formaldehyde epoxy resin, is warming up to 350 DEG C, and modified polycarbonate is obtained after insulation 30min.
The rosin series resin is rosin modified phenolic resin.
The preparation method of rosin modified phenolic resin is：
A, the aluminum trichloride (anhydrous) addition reactor by the p-t-butyl phenol of 250 weight portions and 5 weight portions, are warming up to 70 DEG C,
The solid formaldehyde of 120 weight portions, adjustment solution is added to be warming up to 115 DEG C to alkalescence, react 5 hours while stirring；
B, to the rosin and the fumaric acid of 85 weight portions that 850 weight portions are added in the reactor, be warming up to 155 DEG C, instead
Answer 5 hours；
C, to the sorbierite and the metaphosphoric acid of 2 weight portions that 180 weight portions are added in the reactor, be warming up to 200 DEG C, reaction
2.5 hours, 240 DEG C are continuously heating to, reacted 2 hours.
A kind of production technology of erasable plastics crayon, the production technology is comprised the following steps：
A) penholder raw material and epidermis raw material are separately added into Granulation Equipments granulation to obtain pellet standby；
B) polystyrene of pen core raw material, SBS, pigment and pigment dispersing agent add banburying storehouse, open heater and are warming up to 80
DEG C, 20min is incubated, lubricating auxiliary agent, rosin series resin, fiber, silicon substrate hydrophobic solid lubricant are subsequently adding with modified poly- carbon
Acid esters, is warming up to 110 DEG C, and 180 DEG C are continuously heating to after insulation 30min, and talcum powder is added after mixing 1h, continues to knead 30min,
Then granulate；
C) the penholder pellet for obtaining step a) adds penholder extruder, epidermis pellet to add epidermis extruder；Step b) is obtained
The pen core pellet that arrives adds pen core extruder, extrusion pen core be rapidly introduced into installed in 3 co-extrusions of the discharging opening of extruder into
In pattern tool, then start penholder extruder, wrap pen core, restart epidermis extruder, wrap penholder, by rule after cooling
Measured length cuts off, and is then typewrited, fined away, cleaning, drying and packaging and storage.
Raw materials used in the present invention, equipment, unless otherwise noted, is the conventional raw material, equipment of this area；In the present invention
Method therefor, unless otherwise noted, is the conventional method of this area.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent transformation that technical spirit is made to above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (9)
1. a kind of erasable plastics crayon, including penholder, epidermis and pen core, it is characterised in that the pen core includes following weight portion
Several raw materials：20-30 parts of polystyrene, 10-20 parts of SBS, 30-50 part of talcum powder, 10-20 parts of pigment, 1-5 parts of pigment dispersion
Agent, 1-5 parts of lubricating auxiliary agent, 2-3 parts of rosin series resin, 0.5-1 parts of fiber, 3-5 parts of silicon substrate hydrophobic solid lubricant and 3-6 parts
Modified polycarbonate.
2. a kind of erasable plastics crayon according to claim 1, it is characterised in that fiber is polytetrafluoroethylene fibre, virtue
One kind in synthetic fibre fiber, acrylic fiber.
3. a kind of erasable plastics crayon according to claim 1, it is characterised in that silicon substrate hydrophobic solid lubricant is poly-
Siloxanes or derivatives thereof.
4. a kind of erasable plastics crayon according to claim 1, it is characterised in that lubricating auxiliary agent is ethylene stearic bicine diester
At least one in amine, polyethylene glycol, stearic acid, paraffin.
5. a kind of erasable plastics crayon according to claim 1, it is characterised in that penholder includes the original of following parts by weight
Material：20-30 parts of polystyrene, 10-20 parts of SBS, 5-10 part of polyethylene, 40-60 parts of talcum powder, 10-20 parts of pigment, 1-5 parts of face
Material dispersant, 1-5 parts of lubricating auxiliary agent and 1-5 parts of coupling agent, epidermis include the raw material of following parts by weight：50-60 parts of polyphenyl second
Alkene, 10-25 part polypropylene, 10-25 parts of pigment and 1-6 parts of lubricating auxiliary agent.
6. a kind of erasable plastics crayon according to claim 1, it is characterised in that the method for modifying of modified polycarbonate
For：The husky mica powder with 15 weight portions of zirconium English of 10 weight portions, cospinning is added to prepare in the makrolon of 150 weight portions
Preliminary modified makrolon, then by its mass ratio 1:4 add o-cresol formaldehyde epoxy resin, are warming up to 350 DEG C, are incubated 10-
Modified polycarbonate is obtained after 30min.
7. a kind of erasable plastics crayon according to claim 1, it is characterised in that the rosin series resin is Abietyl modified
Phenolic resin, rosin modified alkyd resin or Abietyl modified maleic acid resin.
8. a kind of erasable plastics crayon according to claim 7, it is characterised in that the preparation side of rosin modified phenolic resin
Method is：
A, the aluminum trichloride (anhydrous) addition reactor by the p-t-butyl phenol of 200-250 weight portions and 3-5 weight portions, are warming up to
60 DEG C -70 DEG C, the solid formaldehyde of 100-120 weight portions, adjustment solution is added to be warming up to 100 DEG C -115 to alkalescence while stirring
DEG C, react 4-5 hours；
B, the fumaric acid to the rosin of addition 700-850 weight portions and 70-85 weight portions in the reactor, are warming up to
140 DEG C -155 DEG C, react -5 hours 4.5 hours；
C, in the reactor add 150-180 weight portions sorbierite and 1-2 weight portions metaphosphoric acid, be warming up to 180 DEG C-
200 DEG C, react -2.5 hours 2 hours, be continuously heating to 230 DEG C -240 DEG C, react -2 hours 1 hour.
9. a kind of production technology of erasable plastics crayon as claimed in claim 1, it is characterised in that the production technology includes
Following steps：
A) penholder raw material and epidermis raw material are separately added into Granulation Equipments granulation to obtain pellet standby；
B) polystyrene of pen core raw material, SBS, pigment and pigment dispersing agent add banburying storehouse, open heater and are warming up to 80
DEG C, 20min is incubated, lubricating auxiliary agent, rosin series resin, fiber, silicon substrate hydrophobic solid lubricant are subsequently adding with modified poly- carbon
Acid esters, is warming up to 110 DEG C, and 180 DEG C are continuously heating to after insulation 30min, and talcum powder is added after mixing 1h, continues to knead 30min,
Then granulate；
C) the penholder pellet for obtaining step a) adds penholder extruder, epidermis pellet to add epidermis extruder；Step b) is obtained
The pen core pellet that arrives adds pen core extruder, extrusion pen core be rapidly introduced into installed in 3 co-extrusions of the discharging opening of extruder into
In pattern tool, then start penholder extruder, wrap pen core, restart epidermis extruder, wrap penholder, by rule after cooling
Measured length cuts off, and is then typewrited, fined away, cleaning, drying and packaging and storage.
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| CN114734746A (en) * | 2022-03-15 | 2022-07-12 | 南京工程学院 | Industrial pencil used in extremely humid environment and preparation method thereof |
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