CN108864827A - A kind of plastic pencil pen core formula and preparation method - Google Patents
A kind of plastic pencil pen core formula and preparation method Download PDFInfo
- Publication number
- CN108864827A CN108864827A CN201810568968.2A CN201810568968A CN108864827A CN 108864827 A CN108864827 A CN 108864827A CN 201810568968 A CN201810568968 A CN 201810568968A CN 108864827 A CN108864827 A CN 108864827A
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- CN
- China
- Prior art keywords
- pen core
- plastics
- plastic
- pencil
- formula
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- 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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Classifications
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- 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
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a kind of plastic pencil pen core formula and preparation methods, are related to pencil manufacturing technology field.Plastic pencil pen core of the present invention includes graphite 50-70%, PP plastics 20-40% and PE plastics 5-15% by weight percentage.The present invention adds PP plastics and PE plastics in pencil formula, and the two is blended so that PP plastics reach toughening effect, solves the problems, such as that existing pencil frangibility is scaling-off.
Description
Technical field
The invention belongs to pencil manufacturing technology fields, more particularly to a kind of plastic pencil pen core formula and a kind of plastics lead
Pen core preparation method.
Background technique
Pencil is a kind of people's commonly attending classes articles.It is reported that China provides 60~70 to world market every year
Hundred million pencils are the big pencil exported countrys of the first in the world.Pencil is mainly to be made of pencil shaft and pencil-lead, existing pencil
Made of the main component of core is all graphite and clay is mixed in a certain ratio.
Pencil is that people contact " the first stroke ", and the student of most kindergartens and primary school is using pencil, this
The student of a age bracket often accidentally slides in use process since the age is smaller, and existing pencil mostly uses rod
Penholder and graphite pen core, pencil landing are easy to cause penholder or pen core to fracture, and graphite pen core is easy scaling-off, influences children's torso
Health.
Summary of the invention
The purpose of the present invention is to provide a kind of plastic pencil pen core formula and preparation methods, by adding in pencil is formulated
Add PP plastics and PE plastics, the two is blended so that PP plastics reach toughening effect, solves the problems, such as that existing pencil frangibility is scaling-off.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is a kind of plastic pencil pen core formula, by weight percentage includes following component：Graphite 50-70%,
PP plastics 20-40% and PE plastics 5-15%.
Further, the formula of the pen core formula further includes auxiliary agent 1-5% by weight percentage.
Further, one of the selection of auxiliary stearate, zinc oxide and plasticizer or a variety of.
A kind of preparation method of plastic pencil pen core formula, comprises the following processes：
PP plastics and PE plastics are put into smelting furnace and are heated to 170 DEG C by step 1, and constant temperature, which stirs evenly, is cooled to 40 DEG C of rows
Material obtains mixed plastic；
Step 2, the mixed plastic for obtaining step 1, which are put into Granulation Equipments, is granulated to obtain discharging grain；
Step 3, the material grain that step 2 is obtained and graphite and auxiliary agent are added in high-speed mixer, are uniformly mixing to obtain altogether
Mixing；
Step 4, the blend composition for obtaining step 3 are added in pen core extruder, and starting pen core extruder squeezes out pen core.
The invention has the advantages that：
The present invention adds PP plastics and PE plastics in pencil formula, and the two is blended so that PP plastics reach toughening effect,
Solve the problems, such as that existing pencil frangibility is scaling-off；The present invention is modified by the mixing addition of PP plastics and PE plastics, is reduced
The hardness of PP plastics, while PP plastics can make up PE plastics rigidly insufficient defect；The present invention is added to PP plastics, reduces
The production cost of plastic pencil.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
Embodiment 1
A kind of plastic pencil pen core formula includes following component by weight percentage：Graphite 60%, PP plastics 30% with
And PE plastics 10%.
A kind of preparation method of plastic pencil pen core formula, comprises the following processes：
PP plastics and PE plastics are put into smelting furnace and are heated to 170 DEG C by step 1, and constant temperature, which stirs evenly, is cooled to 40 DEG C of rows
Material obtains mixed plastic；
Step 2, the mixed plastic for obtaining step 1, which are put into Granulation Equipments, is granulated to obtain discharging grain；
Step 3, the material grain that step 2 is obtained and graphite are added in high-speed mixer, are uniformly mixing to obtain blend composition；
Step 4, the blend composition for obtaining step 3 are added in pen core extruder, and starting pen core extruder squeezes out pen core.
Embodiment 2
A kind of plastic pencil pen core formula includes following component by weight percentage：Graphite 55%, PP plastics 25% with
And PE plastics 15%.
Wherein, the formula of pen core formula further includes auxiliary agent 5% by weight percentage.
Wherein, selection of auxiliary stearate, zinc oxide and plasticizer, the weight ratio of three are 1:2:2.
A kind of preparation method of plastic pencil pen core formula, comprises the following processes：
PP plastics and PE plastics are put into smelting furnace and are heated to 170 DEG C by step 1, and constant temperature, which stirs evenly, is cooled to 40 DEG C of rows
Material obtains mixed plastic；
Step 2, the mixed plastic for obtaining step 1, which are put into Granulation Equipments, is granulated to obtain discharging grain；
Step 3, the material grain that step 2 is obtained and graphite and auxiliary agent are added in high-speed mixer, are uniformly mixing to obtain altogether
Mixing；
Step 4, the blend composition for obtaining step 3 are added in pen core extruder, and starting pen core extruder squeezes out pen core.
Embodiment 3
A kind of plastic pencil pen core formula includes following component by weight percentage：Graphite 70%, PP plastics 20% with
And PE plastics 7%.
Wherein, the formula of pen core formula further includes auxiliary agent 3% by weight percentage.
Wherein, selection of auxiliary stearate and zinc oxide, the mass ratio of the two are 1:3.
The preparation method is the same as that of Example 1.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (4)
1. a kind of plastic pencil pen core formula, which is characterized in that by weight percentage include following component：Graphite 50-70%,
PP plastics 20-40% and PE plastics 5-15%.
2. a kind of plastic pencil pen core formula according to claim 1, which is characterized in that the pen by weight percentage
The formula of core formula further includes auxiliary agent 1-5%.
3. a kind of plastic pencil pen core formula according to claim 2, which is characterized in that the selection of auxiliary stearic acid
One of salt, zinc oxide and plasticizer are a variety of.
4. a kind of preparation method of plastic pencil pen core formula as described in claim 1-3 is any one, which is characterized in that including
Following process：
PP plastics and PE plastics are put into smelting furnace and are heated to 170 DEG C by step 1, and constant temperature, which stirs evenly, to be cooled to 40 DEG C of discharges and obtain
To mixed plastic；
Step 2, the mixed plastic for obtaining step 1, which are put into Granulation Equipments, is granulated to obtain discharging grain；
Step 3, the material grain that step 2 is obtained and graphite and auxiliary agent are added in high-speed mixer, are uniformly mixing to obtain blend composition；
Step 4, the blend composition for obtaining step 3 are added in pen core extruder, and starting pen core extruder squeezes out pen core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568968.2A CN108864827A (en) | 2018-06-05 | 2018-06-05 | A kind of plastic pencil pen core formula and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568968.2A CN108864827A (en) | 2018-06-05 | 2018-06-05 | A kind of plastic pencil pen core formula and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108864827A true CN108864827A (en) | 2018-11-23 |
Family
ID=64336306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568968.2A Pending CN108864827A (en) | 2018-06-05 | 2018-06-05 | A kind of plastic pencil pen core formula and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108864827A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302316A (en) * | 1998-06-26 | 2001-07-04 | 宾尼及史密斯公司 | Erasable colored pencil lead |
| CN105778629A (en) * | 2015-01-09 | 2016-07-20 | 辉柏嘉股份公司 | Lead or chalk containing graphite and a polymer binder matrix |
| CN107223150A (en) * | 2014-12-17 | 2017-09-29 | 康特公司 | The pen core of colored pencil |
-
2018
- 2018-06-05 CN CN201810568968.2A patent/CN108864827A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302316A (en) * | 1998-06-26 | 2001-07-04 | 宾尼及史密斯公司 | Erasable colored pencil lead |
| CN107223150A (en) * | 2014-12-17 | 2017-09-29 | 康特公司 | The pen core of colored pencil |
| CN105778629A (en) * | 2015-01-09 | 2016-07-20 | 辉柏嘉股份公司 | Lead or chalk containing graphite and a polymer binder matrix |
Non-Patent Citations (1)
| Title |
|---|
| 《化工百科全书》编辑委员会等: "《化工百科全书 第14卷》", 31 July 1997, 化学工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |