CN108892526A - A kind of preparation method of high polymer compound zirconia cell phone rear cover - Google Patents
A kind of preparation method of high polymer compound zirconia cell phone rear cover Download PDFInfo
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- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/481—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing silicon, e.g. zircon
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- H—ELECTRICITY
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- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
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Abstract
The invention discloses a kind of preparation methods of high polymer compound zirconia cell phone rear cover, and mullite crystal whisker is added into glycol water, agitated to be formed uniformly suspension, and Zirconium powder is then added, and are uniformly mixed, and form forerunner's suspension；Forerunner's suspension is transferred in water heating kettle and is reacted, presoma powder is obtained；Presoma powder is transferred in Muffle furnace, 1200oC ~ 1250oC is warming up to, heat preservation 1h ~ 2h obtains mullite crystal whisker toughened zirconium oxide ceramic powder；High polymer is heated to 260oC ~ 265oC, sequentially add filler, plasticizer and mullite crystal whisker toughened zirconium oxide ceramic powder, high speed shear mixes, form viscous body, viscous body is molded into mold, 6min ~ 10min is kept the temperature, then warming up treatment, obtains high polymer compound zirconia cell phone rear cover after cooling.The present invention effectively increases the toughness and shaping characteristic of cell phone rear cover.
Description
Technical field
The present invention relates to the technical fields of ceramics, and in particular to a kind of preparation side of high polymer compound zirconia cell phone rear cover
Method.
Background technique
Mobile phone almost has become one of the significant product of modern science and technology and fashion world.The hair at full speed of mobile phone manufacturing technology
Exhibition also expedites the emergence of the progress of relevant components component manufacturing technology.Major part of the cell phone rear cover as contour structures component among these
One of, it also proposed specific and stringent technical requirements to the performance quality of cell phone rear cover.As the main support part of mobile phone,
Cell phone rear cover must have enough intensity and toughness, while have both good design element, more want manufacture easy to produce and again
It is multiple to use.Therefore need to develop the cell phone rear cover and its preparation process of various New Type Materials.
Zirconium oxide is to prepare one of important addO-on therapy of ceramic based material.Zirconium oxide is stablized with chemical property, fusing point
The high, material properties such as impedance is big, refractive index is high, at the same using zirconium oxide be the material that is formed of main base with structural strength height,
The good characteristics such as hardness is big, thermal expansion coefficient is low.Enough structures are capable of providing using zirconium oxide as the main substrate of cell phone rear cover
Support and process ruggedness, but need to be aided with other materials due to hard, crisp mechanical property when exclusive use zirconium oxide to increase hand
The toughness and shaping characteristic of machine rear cover.
Polyethylene terephthalate is abbreviated as PET, is often total to polybutylene terephthalate (PBT) abbreviation PBT
It is poly- to be modified, so that the high polymer to be formed is had the good characteristic of the two concurrently.PET-PBT copolymer has preferable flexibility and is suitable for
The plastic products of any specification shape can be made in glass transition temperature under conventional environment.Therefore with PET-PBT copolymer and oxygen
Changing zirconium is that main component forms composite material, can provide a kind of novel material and process technology scheme for cell phone rear cover manufacture.
Chinese patent CN201810117316.7 discloses a kind of preparation of coloured glaze compound zirconia ceramic mobile phone backboard
By addition wooden powder's active carbon porous zirconia ceramics biscuit is made in yttrium stable zirconium oxide powder by technique, the technique, then
The semi-finished product of zirconia ceramics mobile phone backboard are made by being sintered, then again through being sintered after its surface is uniformly covered with colored glaze layer
Finished product coloured glaze compound zirconia ceramic mobile phone backboard.But the patent passes through the addition compound yttrium Stable Oxygen of wood activated charcoal
Change zirconium powder and prepare mobile phone backboard, toughness and shaping characteristic improve poor.
Therefore, in view of the above-mentioned problems, needing to provide the cell phone rear cover and its preparation process of a kind of New Type Material, increase mobile phone
The toughness and shaping characteristic of rear cover.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of preparation method of high polymer compound zirconia cell phone rear cover.
The present invention solve the above problems used by technical solution be：A kind of system of high polymer compound zirconia cell phone rear cover
Preparation Method includes the following steps：
Step S1 prepares raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mo Lai
5 parts ~ 8 parts of stone crystal whisker, 50 parts ~ 80 parts of Zirconium powder, 15 parts ~ 30 parts of high polymer, 5 parts ~ 10 parts of filler, 5 parts ~ 8 parts of plasticizer；
The mullite crystal whisker of the parts by weight is added into glycol water step S2, agitated to be formed uniformly quality point
The suspension that number is 8% ~ 10%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
Forerunner's suspension that step S2 is formed is transferred in water heating kettle by step S3, is 160oC ~ 180oC in temperature, pressure is
1h ~ 2h is reacted under conditions of 0.2MPa ~ 0.8MPa, products therefrom is washed, dry, obtains presoma powder；
The presoma powder that step S3 is obtained is transferred in Muffle furnace by step S4, is warming up to 1200oC ~ 1250oC, and heat preservation 1h ~
2h is cooled to room temperature, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
The high polymer of the mass fraction is heated to 260oC ~ 265oC, sequentially adds filler, plasticizer and step by step S5
Mullite crystal whisker toughened zirconium oxide ceramic powder obtained in S4, high speed shear mix, and form viscous body, viscous body is molded into
In mold, 6min ~ 10min is kept the temperature, room temperature is cooled to the rate of 3oC/min ~ 5oC/min, 1h ~ 3h is stood, is then rising again
20min ~ 40min is handled, obtains the high polymer compound zirconia cell phone rear cover after cooling.
Further, in step S1, the raw material and its parts by weight for preparing high polymer compound zirconia cell phone rear cover include：Not
Come 5.5 parts ~ 7.5 parts of stone crystal whisker, 60 parts ~ 70 parts of Zirconium powder, 18 parts ~ 25 parts of high polymer, 6 parts ~ 8 parts of filler, 6 parts of plasticizer
~ 7 parts.
Further, the raw material and its parts by weight for preparing high polymer compound zirconia cell phone rear cover include：Mullite is brilliant
It must be 6 parts, 65 parts of Zirconium powder, 22 parts of high polymer, 7 parts of filler, 6.5 parts of plasticizer.
Further, in step S1, high polymer is polyethylene terephthalate and polybutylene terephthalate (PBT)
Copolymer.
Further, in step S1, plasticizer is that epoxy acetyl linolenic acid methyl esters, epoxyfuoic-oleic, epoxy are big
At least one of behenic acid monooctyl ester.
Further, in step S2, the mass fraction of glycol water is 40% ~ 60%.
Further, in step S4, being warming up to 1200oC ~ 1250oC is specially：With the rate of 10oC/min ~ 12oC/min
It is warming up to 600oC ~ 700oC, 1h is kept the temperature, 1200oC ~ 1250oC is then warming up to the rate of 6oC/min ~ 8oC/min.
Further, in step S4, being cooled to room temperature is specially：450o is cooled to the rate of 9oC/min ~ 10oC/min
C ~ 500oC keeps the temperature 1h, is then naturally cooling to room temperature.
Further, in step S5, temperature when injection molding is 255oC ~ 260oC.
Further, in step S5, the temperature of warming up treatment is 80oC ~ 85oC.
It is an advantage of the invention that：
1. high polymer compound zirconia cell phone rear cover of the invention uses mullite crystal whisker toughened zirconium oxide, the tough of zirconium oxide is improved
Property, break resistance add high polymer, filler, plasticizer, PET-PBT copolymer and in the preparation process of cell phone rear cover
With preferable flexibility and suitable glass transition temperature, therefore formed using PET-PBT copolymer and zirconium oxide as main component
Composite material increases the toughness and shaping characteristic of cell phone rear cover；
2. during mullite crystal whisker toughened zirconium oxide of the present invention, the process that first hydro-thermal re-sinters makes to get stone crystal whisker effective
Toughened zirconium oxide, and sintering temperature is reduced, reduce efficiency loss.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mullite
5 parts of whisker, 50 parts of Zirconium powder, 15 parts of high polymer, 5 parts of filler, 5 parts of plasticizer；High polymer is poly terephthalic acid second two
The copolymer of alcohol ester and polybutylene terephthalate (PBT)；Plasticizer is epoxy acetyl linolenic acid methyl esters；
（2）, the mullite crystal whisker of the parts by weight is added into 40wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 8%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 160oC in temperature, pressure is the condition of 0.2MPa
Lower reaction 1h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 600oC with the rate of 10oC/min, heat preservation
Then 1h is warming up to 1200oC with the rate of 6oC/min, keep the temperature 1h, is cooled to 450oC with the rate of 9oC/min, keeps the temperature 1h,
Then it is naturally cooling to room temperature, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, the high polymer of the mass fraction is heated to 260oC, sequentially add filler, plasticizer and（4）What is obtained does not come
Stone crystal whisker toughened zirconium oxide ceramic powder, high speed shear mix, and form viscous body, viscous body is molded into mold in 255oC,
6min is kept the temperature, room temperature is cooled to the rate of 3oC/min, stands 1h, then in 80oC warming up treatment 20min, is obtained after cooling
The high polymer compound zirconia cell phone rear cover.
Embodiment 2
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mullite
8 parts of whisker, 80 parts of Zirconium powder, 30 parts of high polymer, 10 parts of filler, 8 parts of plasticizer；High polymer is poly terephthalic acid second two
The copolymer of alcohol ester and polybutylene terephthalate (PBT)；Plasticizer is epoxyfuoic-oleic；
（2）, the mullite crystal whisker of the parts by weight is added into 60wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 10%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 180oC in temperature, pressure is the condition of 0.8MPa
Lower reaction 2h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 700oC with the rate of 12oC/min, heat preservation
Then 1h is warming up to 1250oC with the rate of 8oC/min, keep the temperature 2h, is cooled to 500oC with the rate of 10oC/min, keeps the temperature 1h,
Then it is naturally cooling to room temperature, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, the high polymer of the mass fraction is heated to 265oC, sequentially add filler, plasticizer and（4）What is obtained does not come
Stone crystal whisker toughened zirconium oxide ceramic powder, high speed shear mix, and form viscous body, viscous body is molded into mold in 260oC,
10min is kept the temperature, room temperature is cooled to the rate of 5oC/min, stands 3h, then in 85oC warming up treatment 40min, is obtained after cooling
The high polymer compound zirconia cell phone rear cover.
Embodiment 3
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mullite
5.5 parts of whisker, 60 parts of Zirconium powder, 18 parts of high polymer, 6 parts of filler, 6 parts of plasticizer；High polymer is poly terephthalic acid second
The copolymer of diol ester and polybutylene terephthalate (PBT)；Plasticizer is ethyl hexyl ester of epoxidized soybean oil；
（2）, the mullite crystal whisker of the parts by weight is added into 50wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 9%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 170oC in temperature, pressure is the condition of 0.5MPa
Lower reaction 1.5h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 650oC with the rate of 11oC/min, heat preservation
Then 1h is warming up to 1225oC with the rate of 7oC/min, keep the temperature 1.5h, be cooled to 475oC with the rate of 9.5oC/min, keeps the temperature
Then 1h is naturally cooling to room temperature, obtain mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, the high polymer of the mass fraction is heated to 262oC, sequentially add filler, plasticizer and（4）What is obtained does not come
Stone crystal whisker toughened zirconium oxide ceramic powder, high speed shear mix, and form viscous body, viscous body is molded into mold in 257oC,
8min is kept the temperature, room temperature is cooled to the rate of 4oC/min, stands 2h, then in 82oC warming up treatment 30min, is obtained after cooling
The high polymer compound zirconia cell phone rear cover.
Embodiment 4
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mullite
7.5 parts of whisker, 70 parts of Zirconium powder, 25 parts of high polymer, 8 parts of filler, 7 parts of plasticizer；High polymer is poly terephthalic acid second
The copolymer of diol ester and polybutylene terephthalate (PBT)；Plasticizer is epoxy acetyl linolenic acid methyl esters, epoxy oil extracted from rice husks acid
The mixture of butyl ester, mass ratio 2：1；
（2）, the mullite crystal whisker of the parts by weight is added into 45wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 8.5%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 165oC in temperature, pressure is the condition of 0.35MPa
Lower reaction 1.2h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 620oC with the rate of 10.5oC/min, is protected
Then warm 1h is warming up to 1210oC with the rate of 6.5oC/min, keep the temperature 1.2h, be cooled to 460oC with the rate of 9.2oC/min,
1h is kept the temperature, room temperature is then naturally cooling to, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, the high polymer of the mass fraction is heated to 261oC, sequentially add filler, plasticizer and（4）What is obtained does not come
Stone crystal whisker toughened zirconium oxide ceramic powder, high speed shear mix, and form viscous body, viscous body is molded into mold in 256oC,
7min is kept the temperature, room temperature is cooled to the rate of 3.5oC/min, stands 1.5h, then in 81oC warming up treatment 25min, after cooling
Obtain the high polymer compound zirconia cell phone rear cover.
Embodiment 5
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mullite
6 parts of whisker, 65 parts of Zirconium powder, 22 parts of high polymer, 7 parts of filler, 6.5 parts of plasticizer；High polymer is poly terephthalic acid second
The copolymer of diol ester and polybutylene terephthalate (PBT)；Plasticizer is epoxy acetyl linolenic acid methyl esters, epoxy oil extracted from rice husks acid
The mixture of butyl ester, ethyl hexyl ester of epoxidized soybean oil, mass ratio are：1：1：1；
（2）, the mullite crystal whisker of the parts by weight is added into 55wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 9.5%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 175oC in temperature, pressure is the condition of 0.7MPa
Lower reaction 1.8h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 680oC with the rate of 11.5oC/min, is protected
Then warm 1h is warming up to 1240oC with the rate of 7.5oC/min, keep the temperature 1.8h, be cooled to 490oC with the rate of 9.8oC/min,
1h is kept the temperature, room temperature is then naturally cooling to, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, the high polymer of the mass fraction is heated to 264oC, sequentially add filler, plasticizer and（4）What is obtained does not come
Stone crystal whisker toughened zirconium oxide ceramic powder, high speed shear mix, and form viscous body, viscous body is molded into mold in 258oC,
9min is kept the temperature, room temperature is cooled to the rate of 4.5oC/min, stands 2.5h, then in 84oC warming up treatment 35min, after cooling
Obtain the high polymer compound zirconia cell phone rear cover.
Comparative example 1
A kind of preparation method of high polymer compound zirconia cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Zirconium oxide
65 parts of powder, 22 parts of high polymer, 7 parts of filler, 6.5 parts of plasticizer；High polymer is polyethylene terephthalate and gathers to benzene
The copolymer of dioctyl phthalate butanediol ester；Plasticizer is epoxy acetyl linolenic acid methyl esters, epoxyfuoic-oleic, epoxidized soybean oil
The mixture of misery ester, mass ratio are：1：1：1；
（2）, the high polymer of the mass fraction is heated to 264oC, sequentially adds filler, plasticizer and Zirconium powder, it is high
Speed shearing mixes, and forms viscous body, viscous body is molded into mold in 258oC, 9min is kept the temperature, with the rate of 4.5oC/min
It is cooled to room temperature, stands 2.5h, then in 84oC warming up treatment 35min, obtains the high polymer compound zirconia hand after cooling
Machine rear cover.
Comparative example 2
A kind of preparation method of zirconium oxide cell phone rear cover, includes the following steps：
（1）, prepare raw material：The raw material and its parts by weight for preparing the zirconium oxide cell phone rear cover include：6 parts of mullite crystal whisker, oxygen
Change 65 parts of zirconium powder body, 7 parts of filler, 6.5 parts of plasticizer；Plasticizer be epoxy acetyl linolenic acid methyl esters, epoxyfuoic-oleic,
The mixture of ethyl hexyl ester of epoxidized soybean oil, mass ratio are：1：1：1；
（2）, the mullite crystal whisker of the parts by weight is added into 55wt% glycol water, it is agitated to be formed uniformly quality
The suspension that score is 9.5%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
（3）, will（2）Forerunner's suspension of formation is transferred in water heating kettle, is 175oC in temperature, pressure is the condition of 0.7MPa
Lower reaction 1.8h, products therefrom is washed, dry, obtains presoma powder；
（4）, will（3）Obtained presoma powder is transferred in Muffle furnace, is warming up to 680oC with the rate of 11.5oC/min, is protected
Then warm 1h is warming up to 1240oC with the rate of 7.5oC/min, keep the temperature 1.8h, be cooled to 490oC with the rate of 9.8oC/min,
1h is kept the temperature, room temperature is then naturally cooling to, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
（5）, by the filler of the mass fraction, plasticizer and（4）Obtained mullite crystal whisker toughened zirconium oxide ceramic powder is high
Speed shearing mixes, and forms viscous body, viscous body is molded into mold in 258oC, 9min is kept the temperature, with the rate of 4.5oC/min
It is cooled to room temperature, stands 2.5h, then in 84oC warming up treatment 35min, obtains the zirconium oxide cell phone rear cover after cooling.
Experimental example 1
To high polymer compound zirconia made from high polymer compound zirconia cell phone rear cover made from experimental example 1 ~ 5 and comparative example 1
The performance of zirconium oxide cell phone rear cover made from cell phone rear cover, comparative example 2 carries out product test, and test result is as shown in table 1.
The properties of product test result of high polymer compound zirconia cell phone rear cover made from 1 embodiment 1 ~ 5 of table
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, and comes for those skilled in the art
It says, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any modification, equivalent
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of high polymer compound zirconia cell phone rear cover, which is characterized in that include the following steps：
Step S1 prepares raw material：The raw material and its parts by weight for preparing the high polymer compound zirconia cell phone rear cover include：Mo Lai
5 parts ~ 8 parts of stone crystal whisker, 50 parts ~ 80 parts of Zirconium powder, 15 parts ~ 30 parts of high polymer, 5 parts ~ 10 parts of filler, 5 parts ~ 8 parts of plasticizer；
The mullite crystal whisker of the parts by weight is added into glycol water step S2, agitated to be formed uniformly quality point
The suspension that number is 8% ~ 10%, is then added the Zirconium powder of the parts by weight, is uniformly mixed, and forms forerunner's suspension；
Forerunner's suspension that step S2 is formed is transferred in water heating kettle by step S3, is 160oC ~ 180oC in temperature, pressure is
1h ~ 2h is reacted under conditions of 0.2MPa ~ 0.8MPa, products therefrom is washed, dry, obtains presoma powder；
The presoma powder that step S3 is obtained is transferred in Muffle furnace by step S4, is warming up to 1200oC ~ 1250oC, and heat preservation 1h ~
2h is cooled to room temperature, obtains mullite crystal whisker toughened zirconium oxide ceramic powder；
The high polymer of the mass fraction is heated to 260oC ~ 265oC, sequentially adds filler, plasticizer and step by step S5
Mullite crystal whisker toughened zirconium oxide ceramic powder obtained in S4, high speed shear mix, and form viscous body, viscous body is molded into
In mold, 6min ~ 10min is kept the temperature, room temperature is cooled to the rate of 3oC/min ~ 5oC/min, 1h ~ 3h is stood, is then rising again
20min ~ 40min is handled, obtains the high polymer compound zirconia cell phone rear cover after cooling.
2. preparation method according to claim 1, which is characterized in that in step S1, prepare the high polymer combined oxidation
The raw material and its parts by weight of zirconium cell phone rear cover include：5.5 parts ~ 7.5 parts of mullite crystal whisker, 60 parts ~ 70 parts of Zirconium powder, Gao Ju
18 parts ~ 25 parts of object, 6 parts ~ 8 parts of filler, 6 parts ~ 7 parts of plasticizer.
3. preparation method according to claim 2, which is characterized in that prepare the high polymer compound zirconia cell phone rear cover
Raw material and its parts by weight include：6 parts of mullite crystal whisker, 65 parts of Zirconium powder, 22 parts of high polymer, 7 parts of filler, plasticizer
6.5 part.
4. preparation method according to claim 1, which is characterized in that in step S1, the high polymer is poly- terephthaldehyde
The copolymer of sour glycol ester and polybutylene terephthalate (PBT).
5. preparation method according to claim 1, which is characterized in that in step S1, the plasticizer is that epoxy acetyl is sub-
At least one of numb methyl oleate, epoxyfuoic-oleic, ethyl hexyl ester of epoxidized soybean oil.
6. preparation method according to claim 1, which is characterized in that in step S2, the quality of the glycol water
Score is 40% ~ 60%.
7. preparation method according to claim 1, which is characterized in that described to be warming up to 1200oC ~ 1250oC in step S4
Specially：It is warming up to 600oC ~ 700oC with the rate of 10oC/min ~ 12oC/min, 1h is kept the temperature, then with 6oC/min ~ 8oC/
The rate of min is warming up to 1200oC ~ 1250oC.
8. preparation method according to claim 1, which is characterized in that in step S4, the room temperature that is cooled to is specially：With
The rate of 9oC/min ~ 10oC/min is cooled to 450oC ~ 500oC, keeps the temperature 1h, is then naturally cooling to room temperature.
9. preparation method according to claim 1, which is characterized in that in step S5, the temperature when injection molding is 255oC
~260ºC。
10. preparation method according to claim 1, which is characterized in that in step S5, the temperature of the warming up treatment is 80
ºC~85ºC。
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