CN108117853A - A kind of thermoplastic binder composition and ceramic injection forming injection material - Google Patents
A kind of thermoplastic binder composition and ceramic injection forming injection material Download PDFInfo
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- CN108117853A CN108117853A CN201611084559.2A CN201611084559A CN108117853A CN 108117853 A CN108117853 A CN 108117853A CN 201611084559 A CN201611084559 A CN 201611084559A CN 108117853 A CN108117853 A CN 108117853A
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63408—Polyalkenes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J191/00—Adhesives based on oils, fats or waxes; Adhesives based on derivatives thereof
- C09J191/06—Waxes
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
This disclosure relates to a kind of thermoplastic binder composition and ceramic injection forming injection material, said composition contains paraffin, high density polyethylene (HDPE), stearic acid and ethylene acrylic acid co polymer, compared with 100 parts by weight paraffin, the content of the high density polyethylene (HDPE) is 15 65 parts by weight, the stearic content is 1 15 parts by weight, and the content of the ethylene acrylic acid co polymer is 1 30 parts by weight.Contain ethylene acrylic acid co polymer in the thermoplastic binder composition of the disclosure, on the one hand it is good with the high density polyethylene (HDPE) compatibility in thermoplastic binder composition, alkoxy in another aspect ethylene acrylic acid co polymer can be coupled with ceramic powders surface hydroxyl, the dispersiveness of ceramic powders in a binder can be improved, it is low with the ceramic injection forming injection material viscosity that ceramic powders form by the thermoplastic binder composition, powder useful load is high, the uniformity and good fluidity of injection material, reduce in injection moulding green body and stomata occur, it shorts, the defects of spue line is apparent.
Description
Technical field
This disclosure relates to ceramic injection forming technical field, and in particular, to a kind of thermoplastic adhesive and ceramic injection
Molding shot material.
Background technology
Ceramic injection forming is that ceramic powder is kneaded into uniform injection feeding at a certain temperature with organic binder bond,
Then, it in injection molding machine is injection moulded, then green compact is carried out to a kind of method of ungrease treatment and sintering densification.It has
Disposal molding complicated shape product, product size precision is high, without following process or only needs micro processing, is easily achieved production
The characteristics of automation and excellent product performance, compensates for the deficiency of conventional powder forming method.
In ceramic injection forming, the performance of binding agent play the role of it is highly important, to inject feeding uniformity,
The precision and performance of rheological characteristic, mouldability and skimming processes and final products all play significant impact.
Ceramic powder specific surface area is bigger, and surface and organic matter compatibility are poor, thus, existing ceramics split-
For binder system when being kneaded, ceramic powder is difficult to be uniformly dispersed in binder system, and powder useful load is low, and injects feeding
Uniformity and mobility it is poor, be injection moulded in green body and stomata occur, short, the defects of spue line is apparent.
The content of the invention
The purpose of the disclosure is to provide a kind of thermoplastic adhesive and ceramic injection forming injection material, the thermoplastic adhesive
Good with ceramic powders caking property, the ceramic injection forming injection material melt fluidity containing the thermoplastic adhesive is good, ceramic powder
Last content is high and is uniformly dispersed.
To achieve these goals, the disclosure provides a kind of thermoplastic binder composition, and said composition contains paraffin, height
Density polyethylene, stearic acid and ethylene-acrylic acid copolymer, compared with 100 parts by weight paraffin, the high density polyethylene (HDPE) contains
It measures as 15-65 parts by weight, the stearic content is 1-15 parts by weight, and the content of the ethylene-acrylic acid copolymer is 1-
30 parts by weight.
Optionally, compared with 100 parts by weight paraffin, the content of the high density polyethylene (HDPE) is 23-50 parts by weight, described hard
The content of resin acid is 1-9 parts by weight, and the content of the ethylene-acrylic acid copolymer is 3-16 parts by weight.
Optionally, in the ethylene-acrylic acid copolymer, the molar content of acrylic acid units is 5-20%.
Optionally, the melt index of the ethylene-acrylic acid copolymer is 1-20g/10min, and the melt index is to adopt
The melt index measured with GB/T 3682-2000 standard method G conditions.
Optionally, the density of the high density polyethylene (HDPE) is 0.940-0.976g/cm3, the high density polyethylene (HDPE) it is molten
Melt index as 1-20g/10min, the melt index is that the melting measured using GB/T 3682-2000 standard method G conditions is referred to
Number.
The disclosure also provides above-mentioned thermoplastic binder composition in zirconium oxide and/or alumina ceramic injection molding
Application.
The disclosure also provides a kind of ceramic injection forming injection material, which contains ceramic powders and above-mentioned thermoplasticity
Adhesive composition.
Optionally, the weight content of the ceramic powders in the injection material is 70-87%.
Optionally, the ceramic powders are aluminium oxide and/or Zirconium oxide powder.
The disclosure also provides application of the above-mentioned ceramic injection forming injection material in ceramic is prepared.
Through the above technical solutions, contain ethylene-acrylic acid copolymer in the thermoplastic binder composition of the disclosure, one
It is good with the high density polyethylene (HDPE) compatibility in thermoplastic binder composition for aspect, another aspect ethylene-acrylic acid copolymer
In alkoxy can be coupled with ceramic powders surface hydroxyl, the dispersiveness of ceramic powders in a binder can be improved, by the heat
Plastic binder composition is low with the ceramic injection forming injection material viscosity that ceramic powders form, powder useful load is high, injection material
Uniformity and good fluidity, reduce and occur stomata in injection moulding green body, short, the defects of spue line is apparent.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is together for explaining the disclosure, but do not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is that a kind of specific embodiment of the ceramic injection forming injection material provided using the disclosure carries out ceramic injection
Molding product schematic diagram.
Specific embodiment
The specific embodiment of the disclosure is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
The disclosure provides a kind of thermoplastic binder composition, and said composition contains paraffin, high density polyethylene (HDPE), stearic acid
And ethylene-acrylic acid copolymer, compared with 100 parts by weight paraffin, the content of the high density polyethylene (HDPE) is 15-65 parts by weight,
The stearic content is 1-15 parts by weight, and the content of the ethylene-acrylic acid copolymer is 1-30 parts by weight.
Contain ethylene-acrylic acid copolymer in the thermoplastic binder composition of the disclosure, on the one hand it is glued with thermoplasticity
The high density polyethylene (HDPE) compatibility tied in agent composition is good, and the alkoxy in another aspect ethylene-acrylic acid copolymer can be with pottery
Porcelain powder surface hydroxyl is coupled, and the dispersiveness of ceramic powders in a binder can be improved, so that by the thermoplastic binder
Powder useful load, uniformity and the mobility for the ceramic injection forming injection material that agent composition is formed with ceramic powders substantially carry
It is high.
In order to further improve the dispersion performance of thermoplastic binder composition and ceramic powders, it is preferable that compared with 100
Parts by weight paraffin, the content of the high density polyethylene (HDPE) can be 23-50 parts by weight, and the stearic content can be 1-9
Parts by weight, the content of the ethylene-acrylic acid copolymer can be 3-16 parts by weight.
According to the disclosure, the meaning of ethylene-acrylic acid copolymer is well known to those skilled in the art, and can be had such as formula
(1) structure shown in：
{(CH2CH2)n-(CH(COOH)CH2)m}k (1)
Wherein, m, n and k are each independently arbitrary integer.Two kinds of copolymerization units is opposite in ethylene-acrylic acid copolymer
Content can change in very large range, in order to further improve ethylene-acrylic acid copolymer to thermoplastic binder composition
The modified effect of caking property, under preferable case, in the ethylene-acrylic acid copolymer, the molar contents of acrylic acid units can be with
For 5-20%.The molar content may be employed method well-known to those skilled in the art and measure, such as infra-red sepectrometry.
It is further preferred that the melt index of the ethylene-acrylic acid copolymer can be 1-20g/10min, it is described molten
It is the melt index measured using GB/T 3682-2000 standard method G conditions to melt index.
According to the disclosure, the meaning of high density polyethylene (HDPE) is well known to those skilled in the art, the high density polyethylene (HDPE)
Density can be 0.940-0.976g/cm3, it is preferably 0.941~0.960g/cm3, the melting of the high density polyethylene (HDPE) refers to
Number can be 1-20g/10min, be preferably 6-15g/10min, and the melt index is using GB/T 3682-2000 standard sides
The melt index that method G conditions measure.
Can be mixture dispersion or will be after binding agent melting mixing according to the thermoplastic binder composition of the disclosure
Graininess is shaped to, for the ease of using and transporting, under preferable case, above-mentioned thermoplastic binder composition can be prepared into
Particle, preparation method can be this field conventional method, such as：By high density polyethylene (HDPE) and ethylene-acrylic acid copolymer 180
DEG C liquid is heated to, is cooled to 170 DEG C of addition stearic acid, 150 DEG C of addition paraffin are cooled to after dissolving, liquid is dissolved as, cools down
The particle of below 3mm sizes is broken for afterwards.
The disclosure also provides above-mentioned thermoplastic binder composition in zirconium oxide and/or alumina ceramic injection molding
Application.I.e. using the injection material that thermoplastic binder composition and the zirconium oxide and/or aluminium oxide ceramics of the disclosure form into
Row ceramic injection forming obtains ceramic injection part, then through degreasing, sintering, obtains ceramic.
The disclosure also provides a kind of ceramic injection forming injection material, which contains ceramic powders and above-mentioned thermoplasticity
Adhesive composition.
Containing above-mentioned thermoplastic binder composition in the ceramic injection forming injection material of the disclosure, point with ceramic powders
It is good to dissipate property, improves the uniformity of injection material, reduce viscosity, and can significantly be carried on the premise of mobility is ensured
The powder useful load of high injection material.So as to reduce injection moulding green body in occur stomata, short, spue line is apparent the defects of.
According to the disclosure, the content of ceramic powders can become in very large range in the ceramic injection forming injection material
Change, in order to improve the Forming Quality of ceramic injection forming part, under preferable case, the weight of the ceramic powders in the injection material
It can be 70-87%, more preferably 80-87% to measure content.
According to the disclosure, the ceramic powders can be well known to those skilled in the art be suitable for ceramic injection into
The conventional kind of type, it is preferable that the ceramic powders can be aluminium oxide and/or Zirconium oxide powder.
The disclosure also provides application of the above-mentioned ceramic injection forming injection material in ceramic is prepared.The ceramic system
The shape and size of product are not particularly limited, and can be the shape and size of the ceramic injection molding product of this field routine,
Shape for example, shown in FIG. 1.
Below by way of embodiment is enumerated, aluminium alloy of the disclosure and preparation method thereof is further described.But this public affairs
Open be not limited to it is set forth below for embodiment.
In the following embodiments and comparative example of the disclosure, ethylene-acrylic acid copolymer is purchased from E.I.Du Pont Company, and article number is
2002 (molar content 7% of acrylic acid units, melt index 9-11g/10min)；High density polyethylene (HDPE) is purchased from Qilu Petrochemical
Company, article number are DGDA6098 (density 0.946-0.953g/cm3, melt index 9-14g/10min)；Paraffin is purchased from
Shanghai Hua Shen rehabilitation materials company, article number Q/YSQN40-91；Stearic acid is public purchased from East Sea chemical raw material Co., Ltd
Department, article number 1801.
Melt index is the melt index measured using GB/T 3682-2000 standard method G conditions；
The viscosity of injection material measures on Britain's Rosand RH-7D type double plunger capillary rheometers, and test temperature is
150 DEG C, shear rate 100s-1And 1000s-1, capillary draw ratio is 16:1.
Embodiment 1
The present embodiment is used to illustrate thermoplastic binder composition of the disclosure and preparation method thereof.
28.6 parts by weight high density polyethylene (HDPE)s and 10 parts by weight of ethylene-acrylic copolymer are heated to liquid at 180 DEG C,
170 DEG C of 4.3 parts by weight stearic acid of addition are cooled to, 150 DEG C of 100 parts by weight paraffin of addition are cooled to after dissolving, are dissolved as liquid,
The particle of below 3mm sizes is broken for after cooling, obtains the thermoplastic binder composition A1 of the present embodiment.
Embodiment 2
The present embodiment is used to illustrate thermoplastic binder composition of the disclosure and preparation method thereof.
36.9 parts by weight high density polyethylene (HDPE)s and 15.4 parts by weight of ethylene-acrylic copolymer are heated to liquid at 180 DEG C
Body is cooled to 170 DEG C of 1.5 parts by weight stearic acid of addition, and 150 DEG C of 100 parts by weight paraffin of addition are cooled to after dissolving, are dissolved as liquid
Body is broken for the particle of below 3mm sizes after cooling, obtain the thermoplastic binder composition A2 of the present embodiment.
Embodiment 3
The present embodiment is used to illustrate thermoplastic binder composition of the disclosure and preparation method thereof.
50 parts by weight high density polyethylene (HDPE)s and 8.3 parts by weight of ethylene-acrylic copolymer are heated to liquid at 180 DEG C,
170 DEG C of 8.3 parts by weight stearic acid of addition are cooled to, 150 DEG C of 100 parts by weight paraffin of addition are cooled to after dissolving, are dissolved as liquid,
The particle of below 3mm sizes is broken for after cooling, obtains the thermoplastic binder composition A3 of the present embodiment.
Embodiment 4
The present embodiment is used to illustrate thermoplastic binder composition of the disclosure and preparation method thereof.
15 parts by weight high density polyethylene (HDPE)s and 1 parts by weight of ethylene-acrylic copolymer are heated to liquid at 180 DEG C, are dropped
Temperature is cooled to 150 DEG C of 100 parts by weight paraffin of addition, is dissolved as liquid, cools down to 170 DEG C of 1 parts by weight stearic acid of addition after dissolving
The particle of below 3mm sizes is broken for afterwards, obtains the thermoplastic binder composition A4 of the present embodiment.
Embodiment 5
The present embodiment is used to illustrate thermoplastic binder composition of the disclosure and preparation method thereof.
65 parts by weight high density polyethylene (HDPE)s and 30 parts by weight of ethylene-acrylic copolymer are heated to liquid at 180 DEG C, are dropped
Temperature to 170 DEG C addition 15 parts by weight stearic acid, be cooled to after dissolving 150 DEG C addition 100 parts by weight paraffin, be dissolved as liquid, it is cold
But the particle of below 3mm sizes is broken for afterwards, obtains the thermoplastic binder composition A5 of the present embodiment.
Comparative example 1
This comparative example is for explanation thermoplastic binder composition different from the disclosure and preparation method thereof.
By 19 parts by weight high density polyethylene (HDPE)s and 6.3 parts by weight of polypropylene, (purchased from Yanshan Petrochemical company, article number is
K1008, melt index 8-12g/10min) at 180 DEG C liquid is heated to, 170 DEG C of 1.3 parts by weight stearic acid of addition are cooled to,
150 DEG C of 100 parts by weight paraffin of addition are cooled to after dissolving, liquid is dissolved as, the particle of below 3mm sizes is broken for after cooling,
Obtain the thermoplastic binder composition B1 of this comparative example.
Comparative example 2
This comparative example is for explanation thermoplastic binder composition different from the disclosure and preparation method thereof.
Using the raw material and method of embodiment 1, the difference is that ethylene-acrylic acid copolymer is the weight such as are replaced with
High density polyethylene (HDPE) obtains the thermoplastic binder composition B2 of this comparative example.
Comparative example 3
This comparative example is for explanation thermoplastic binder composition different from the disclosure and preparation method thereof.
Using the raw material and method of embodiment 1, the difference is that ethylene-acrylic acid copolymer is the weight such as are replaced with
Acrylic acid obtains the thermoplastic binder composition B3 of this comparative example.
Testing example 1
This testing example is used to illustrate ceramic injection forming injection material of the disclosure and preparation method thereof.
Thermoplastic adhesive A1-A5 in embodiment 1-5 is heated to 160 DEG C or so with mixer respectively, will be weighed
Zirconia powder (weight content be 87%) in injection material be divided into 4 equal portions, be respectively added slowly in above-mentioned binding agent,
Using mixer mixing 30 minutes, extruding pelletization obtained being about 3-5mm after cooling, the ceramic injection of the strip of diameter about 2mm into
Type injection material Z1-Z5.
Thermoplastic adhesive B1-B3 in comparative example 1-3 is heated to 160 DEG C or so with mixer respectively, will be weighed
Zirconia powder (weight content in injection material is 70%, when using weight content as 87% zirconia powder, feeding viscosity
It is excessive, it is impossible to complete injection moulding) it is divided into 4 equal portions, it is respectively added slowly in above-mentioned binding agent, is divided using mixer mixing 30
Clock, extruding pelletization obtains being about 3-5mm, the ceramic injection forming injection material Z6-Z8 of the strip of diameter about 2mm after cooling.
110MPa is respectively adopted in above-mentioned injection material Z1-Z8, the ceramics of 180 DEG C of injection parameters injection as shown in Figure 1 are noted
Penetrate shaped article (length l be 68.27mm, width b be 10.30mm, thickness c be 0.80mm, Circularhole diameter D be 7.57mm, circular hole
Centre-to-centre spacing Edge Distance a is 21.13mm), after trichloro ethylene degreasing, 1000 DEG C/2h thermal debindings, zirconium oxide uses 1550
DEG C/2h sintering.Polished observation surface quality, the results are shown in tables 1.
Table 1
From the Comparative result of embodiment 1-5 and comparative example 1-3 can be seen that the thermoplastic binder composition of the disclosure with
Ceramic powders composition ceramic injection forming injection material viscosity is low, powder useful load is high, the uniformity and good fluidity of injection material,
The molding blank obtained by the thermoplastic binder composition and ceramic injection forming injection material of the disclosure has good quality,
No apparent stomata, short, spue line the defects of.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that the specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of thermoplastic binder composition, which is characterized in that said composition contains paraffin, high density polyethylene (HDPE), stearic acid
And ethylene-acrylic acid copolymer, compared with 100 parts by weight paraffin, the content of the high density polyethylene (HDPE) is 15-65 parts by weight,
The stearic content is 1-15 parts by weight, and the content of the ethylene-acrylic acid copolymer is 1-30 parts by weight.
2. thermoplastic binder composition according to claim 1, which is characterized in that compared with 100 parts by weight paraffin, institute
The content of high density polyethylene (HDPE) is stated as 23-50 parts by weight, the stearic content is 1-9 parts by weight, the ethylene-acrylic acid
The content of copolymer is 3-16 parts by weight.
3. thermoplastic binder composition according to claim 1, which is characterized in that the ethylene-acrylic acid copolymer
In, the molar content of acrylic acid units is 5-20%.
4. the thermoplastic binder composition according to claim 1 or 3, which is characterized in that the ethylene-acrylic acid copolymer
The melt index of object is 1-20g/10min, and the melt index is measured using GB/T3682-2000 standard method G conditions
Melt index.
5. thermoplastic binder composition according to claim 1, which is characterized in that the density of the high density polyethylene (HDPE)
For 0.940-0.976g/cm3, the melt index of the high density polyethylene (HDPE) is 1-20g/10min, and the melt index is use
The melt index that GB/T 3682-2000 standard method G conditions measure.
6. the thermoplastic binder composition in claim 1-5 described in any one is noted in zirconium oxide and/or aluminium oxide ceramics
Penetrate the application in shaping.
7. a kind of ceramic injection forming injection material, which is characterized in that the injection material, which contains in ceramic powders and claim 1-5, appoints
Thermoplastic binder composition described in meaning one.
8. ceramic injection forming injection material according to claim 7, which is characterized in that the ceramics in the injection material
The weight content of powder is 70-87%.
9. ceramic injection forming injection material according to claim 8, which is characterized in that the ceramic powders are aluminium oxide
And/or Zirconium oxide powder.
10. application of the ceramic injection forming injection material in ceramic is prepared in claim 7-9 described in any one.
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Cited By (3)
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| CN110396299A (en) * | 2019-07-03 | 2019-11-01 | 谭建波 | A kind of adhesive for powder injection forming and preparation method thereof |
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| CN115321968A (en) * | 2022-08-14 | 2022-11-11 | 浙江昶科陶瓷新材料有限公司 | POM (polyoxymethylene) based formula system for injection molding of superfine alumina ceramic powder and application thereof |
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| CN110396299A (en) * | 2019-07-03 | 2019-11-01 | 谭建波 | A kind of adhesive for powder injection forming and preparation method thereof |
| CN114685160A (en) * | 2020-12-30 | 2022-07-01 | 北京中科三环高技术股份有限公司 | Binder composition, microwave dielectric ceramic particle, ceramic and ceramic filter |
| CN115321968A (en) * | 2022-08-14 | 2022-11-11 | 浙江昶科陶瓷新材料有限公司 | POM (polyoxymethylene) based formula system for injection molding of superfine alumina ceramic powder and application thereof |
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Application publication date: 20180605 |