CN101270223B - Process for preparing nano-SiO2/PET engineering plastic product - Google Patents
Process for preparing nano-SiO2/PET engineering plastic product Download PDFInfo
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- CN101270223B CN101270223B CN2008100235552A CN200810023555A CN101270223B CN 101270223 B CN101270223 B CN 101270223B CN 2008100235552 A CN2008100235552 A CN 2008100235552A CN 200810023555 A CN200810023555 A CN 200810023555A CN 101270223 B CN101270223 B CN 101270223B
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- 229920006351 engineering plastic Polymers 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052681 coesite Inorganic materials 0.000 title abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 title abstract 3
- 239000000377 silicon dioxide Substances 0.000 title abstract 3
- 229910052682 stishovite Inorganic materials 0.000 title abstract 3
- 229910052905 tridymite Inorganic materials 0.000 title abstract 3
- 239000002131 composite material Substances 0.000 claims abstract description 59
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000003063 flame retardant Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 16
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 69
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 69
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 238000002425 crystallisation Methods 0.000 claims description 17
- 230000008025 crystallization Effects 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 14
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001746 injection moulding Methods 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 6
- 206010015856 Extrasystoles Diseases 0.000 claims description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 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 description 4
- 238000012545 processing Methods 0.000 claims description 4
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 4
- 235000010234 sodium benzoate Nutrition 0.000 claims description 4
- 239000004299 sodium benzoate Substances 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 239000002667 nucleating agent Substances 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 23
- 238000012986 modification Methods 0.000 description 13
- 230000004048 modification Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 238000005453 pelletization Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- B29C47/92—
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- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a production method of a nano SiO2/PET engineering plastic product; nano SiO2/PET composite material slices are taken as the raw materials and a general injection/extrusion process is adopted, so as to first dry the raw materials before injection/extrusion, so that the water content of less than or equal to 40ppm is regarded as the main characteristic. By adding in an appropriate amount of flame retardant, alkali-free glass fiber and special nucleating agent are modified, so that the produced engineering plastic product has higher physical performance and process performance, is more applicable in producing all types of engineering plastic products. The production method is characterized by easy process, quick knockout, good quality of finished products, wide scope of application, applicable in mass industrialized production, etc.
Description
Technical field
The present invention relates to a kind of nanometer SiO
2The production method of/PET engineering plastic product specifically, is to adopt nanometer SiO
2/ PET matrix material is produced the method for engineering plastic product.Belong to thermal plastic high polymer plastics production technology.
Background technology
Polyethylene terephthalate is called for short PET, is a kind of excellent property, the thermoplastic macromolecule material that price is lower, and it is widely used in making packaging vessels such as synthon, film and beverage bottle.And produce such as engineering plastic products such as automobile, electric and machineries with it, owing to have the rigidity phenyl ring in its molecular chain, cause its crystallization rate slower, and hindered its application on engineering plastics.Therefore, improving the crystallization rate of PET, is to realize PET key technologies for application on engineering plastics.
The eighties in last century, du pont company is successfully developed the modified PET engineering plastic product that crystallization rate is fast, the injection mould temperature is low by adding nucleator, nucleation accelerating agent and glass fibre.
But mechanical property, electrical property and the thermal characteristics etc. of the engineering plastic product of producing with above-mentioned modified PET still do not satisfy the index request that engineering plastic product improves day by day.And the applicant and Ningbo Material Technology and Engineering Inst. of the Chinese Academy of Sciences, the nanometer SiO by the PET modification of common research and development
2/ PET matrix material is owing to exist a large amount of SI in its nanoparticle
2+Active gene, it and PET macromolecular chain-COOH forms very strong chemical chain, and this strong interface binding power has in original basic chemical property and processing characteristics it, has more good physicals.Because spherical nanometer SiO
2Have significant crystallization nucleation effect in the adding PET matrix, improved degree of crystallinity and the crystallization rate of PET; And it is heterogeneous nucleation spherulitic growth process in crystallisation process, and finally forms small and dense real small-crystalline, so the character of material obtains changing, and makes nanometer SiO
2/ PET matrix material has the intensity higher than common PET material, toughness and modulus, and because its crystallization velocity is fast, and be expected to realize that the injection-molded item demoulding is fast, and the target of finished product any surface finish, thus the difficult problem that PET uses solved on engineering plastic product.
Although people are cognitive nanometer SiO
2Numerous advantages that/PET matrix material is had, and in industrial production, begin to use, the Chinese patent Granted publication CN1252124C such as by the applicant's application discloses employing SiO
2Industry silk that/PET matrix material makes and preparation method thereof.But, adopt SiO according to the Ministry of Education's science and technology current awareness search work station retrieval
2/ PET matrix material is produced the method for engineering plastic product, and not seeing as yet so far has report.
Summary of the invention
It is simple and easy that the present invention aims to provide a kind of technology, and favorable quality of finished products is suitable for producing all kinds of engineerings nanometer SiO
2The production method of/PET engineering plastic product is to satisfy social development and industrial needs better.
The present invention realizes that the technical scheme of its purpose is:
A kind of nanometer SiO
2The production method of/PET engineering plastic product in the polyethylene terephthalate with per 100 weight parts, contains the single particle dispersive of 0.5～5.0 weight part, the spherical SiO that particle diameter is 10～50nm
2SiO
2/ PET matrix material section is adopted common injection moulding/expressing technique as raw material, and its innovative point is, is implementing injection moulding/before extruding, and first described raw material is dried processing, make its water content≤40ppm after, produce nanometer SiO through injection moulding/extrude operation again
2/ PET engineering plastic product.
Why in injection moulding/take described nanometer SiO before extruding
2/ PET matrix material is implemented oven dry and is handled, and requires its water content≤40ppm, its purpose mainly to be effectively to improve physicalies such as the intensity of finished product and toughness, avoids goods to produce cracking.Especially for the thin-walled plastic product, has necessity more.
And described oven dry is handled, and preferred for this invention is, with described raw material nano SiO
2/ PET matrix material places in vacuum-drying or the hot air drier, dries 4～6 hours in 130 ℃～165 ℃ temperature ranges.But be not limited to this.As long as other dehumanization method of the water content≤40ppm of described raw material all is fine after handling through described oven dry.For example adopt the furnace drying method of described raw material and hot-air convection motion, its temperature and drying time can obviously reduce.But the facility investment of the furnace drying method that the present invention is given is lower, and technological operation is also more convenient.
The present invention also advocates raw materials used nanometer SiO
2/ PET matrix material, the enforcement modification is handled, be the raw material that described drying is handled, also with the fire retardant that is used for improving the finished product flame retardant properties, be used for improving the alkali free glass fibre of finished product intensity and resistance toheat and be used for improving a kind of among the special-purpose nucleator three of crystallization rate and degree of crystallinity or two kinds or three kinds form composite materials; And described composite material enters forcing machine by after evenly stirring, and is controlled under 240 ℃～280 ℃ conditions in the scope in the workspace temperature, gets modifying material through the forcing machine granulation; Again described modifying material was dried 1～4 hour in 80 ℃～120 ℃ temperature ranges; And then will be by the described modifying material of drying treatment, through injection moulding/extrude operation to produce engineering plastic product.Its purpose obviously is further to improve nanometer SiO
2The flame retardant properties of/PET engineering plastic product, physical strength and resistance toheat and crystallization rate and degree of crystallinity, and realize that effectively the demoulding of production process is fast, shrinking percentage is little, finished product any surface finish, no buckling deformation and purpose such as do not ftracture.
The preferred described fire retardant of the present invention is the compound flame retardant of ten bromine bigeminy phenylates and antimonous oxide, and its composite weight part ratio is ten bromine bigeminy phenylates: antimonous oxide=3: 1; The composite weight part ratio of described raw material and described compound flame retardant is 100: 5～10, constitutes composite material thus; And described composite material, in 80 ℃～90 ℃ temperature ranges, dry 1～2 hour stand-by.But be not limited to this.The composite weight part ratio of described compound flame retardant, be with a certain weight for example 1kg be 1 part, taking by weighing ten bromine bigeminy phenylates respectively is 3kg for 3 parts, antimonous oxide is the composite composition compound flame retardant of 1kg for 1 part.The implication of described weight part ratio is all identical therewith in full.
The preferred described alkali free glass fibre of the present invention is long fibre or short fiber; The composite weight part ratio of described raw material and described alkali free glass fibre is 100: 10～30, constitutes composite material thus; And described composite material, in 90 ℃～100 ℃ temperature ranges, dry 2～3 hours stand-by.But be not limited to this.
The preferred described special-purpose nucleator of the present invention is that polyethers or phenylformic acid are received or talcum powder; The composite weight part ratio of described raw material and described special-purpose nucleator is 1000: 2～5, and it is stand-by to constitute composite material thus.But be not limited to this.
The present invention is preferred described raw material nano SiO further
2The composite weight part ratio of/PET matrix material and described polyethers is 1000: 2; The composite weight part ratio of described raw material and described Sodium Benzoate is 1000: 3; Described raw material and talcous composite weight part ratio are 1000: 4.But be not limited to this.Here should be noted that the present invention advocates to adopt polyethers especially, secondly is Sodium Benzoate, does not generally advocate to adopt talcum powder.Although talcum powder is inexpensive, cost is low, the environment of its production process is relatively poor.The present invention does not get rid of the composite use of described three kinds of special-purpose nucleators, just says yet, can adopt a kind of among described three kinds of special-purpose nucleator threes or two kinds or three kinds.Should be noted that described three kinds of composite uses of special-purpose nucleator, so long as composite reasonable, its effect is good equally.
After technique scheme was implemented, the technology that the present invention had was simple and easy, and the demoulding is fast, and favorable quality of finished products is applied widely, was adapted at characteristics such as batch suitability for industrialized production, was conspicuous.
Description of drawings
Fig. 1 is the process flow sheet of a kind of embodiment of the present invention;
Fig. 2 is the process flow sheet of the another kind of embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment, but be not limited to this.
Preparation is used to make nanometer SiO of the present invention
2The raw material nano SiO of/PET engineering plastic product
2The method of/PET matrix material.Please join the Granted publication CN1252124C that reads by the applicant's application, use nanometer SiO
2The embodiment 1 of industry silk that polyester composite makes and preparation method thereof.
Embodiment 1, as shown in Figure 1.Preparation nanometer SiO
2/ PET engineering plastic product is such as plastics machinery spare.Its production stage is:
(1) raw material nano SiO
2The oven dry of/PET matrix material is handled.Described raw material is placed in the hot air drier, under 150 ℃ of temperature condition, dried 5 hours, detect its water ratio and reach≤40ppm, outlet is stand-by.
(2) molded.Nanometer SiO with drying
2/ PET matrix material is inserted screw injection molding machine, takes common PET Shooting Technique, makes nanometer SiO
2/ PET engineering plastic product.
Implement 2, as shown in Figure 1.Preparation nanometer SiO
2/ PET plastics bar or plate.Its production stage is: except adopting screw-type extruder, other is all identical with enforcement 1.
Implement 3, ginseng is read accompanying drawing 2.Preparation anti-flaming nano SiO
2/ PET engineering plastic product.Its production stage is:
(1) raw material nano SiO
2The oven dry of/ET matrix material is handled.Described raw material is placed in the vacuum drying oven, and oven dry is 6 hours under 135 ℃ of temperature condition, detects its water ratio≤40pmm, and outlet is stand-by.
(2) preparation fire retardant.Get 3 weight parts, ten bromine bigeminy phenylates and 1 weight part antimonous oxide and be re-dubbed compound flame retardant.
(3) prepare composite material.Oven dry nanometer SiO with the first step preparation
2/ PET matrix material, with the compound flame retardant of second step preparation, it is composite that 100: 5 by weight ratios are weighed, by evenly stirring into composite material; Described composite material is inserted in the baking oven, oven dry is 2 hours under 90 ℃ of temperature condition again, and outlet is stand-by.
(4) modification is handled.With the composite material of third step preparation, insert the screw-type extruder granulation, barrel is respectively distinguished temperature and is controlled in 240 ℃～280 ℃ scopes, and pelletizing after extruding makes the nanometer SiO with enhancing flame retardant properties
2/ PET composite modification material particle.
(5) oven dry of modifying material particle is handled.The modifying material particle of the 4th step preparation is inserted in the baking oven, under 110 ℃～120 ℃ temperature condition, dried 3～4 hours.
(6) molded.With the oven dry modifying material particle of the 5th step preparation, insert screw injection molding machine, adopt common PET Shooting Technique, preparation anti-flaming nano SiO
2/ PET engineering plastic product.
Embodiment 4, as shown in Figure 2.Preparation strengthens heat-resisting nanometer SiO
2/ PET engineering plastic product, its production stage is:
(1) raw material SiO
2The oven dry of/PET matrix material is handled.Identical with the first step of implementing 3.
(2) prepare composite material.Oven dry nanometer SiO with the first step preparation
2/ PET matrix material and enhancing non-alkali glass staple fibre, ratio was composite by evenly stirring into composite material in 100: 25 by weight; Described composite material is inserted in the baking oven, oven dry is 2 hours under 90 ℃ of temperature condition again.Outlet is stand-by.
(3) modification is handled.With the composite material of second step preparation, insert the screw-type extruder granulation, barrel is respectively distinguished temperature and is controlled in 240 ℃～280 ℃ scopes, pelletizing after extruding.Make nanometer SiO with high-intensity performance
2/ PET composite modification material particle.Stand-by.
(4) oven dry of modifying material particle is handled.Identical with the 5th step of embodiment 3.
(5) molded.Identical with the 6th step of embodiment 3.Strengthen heat-resisting nanometer SiO thereby make
2/ PET engineering plastic product.
Implement 5, as shown in Figure 2.Preparation has high crystallization rate, high-crystallinity and the demoulding is fast, surface smoothness is good nanometer SiO
2/ PET engineering plastic product.Its production stage is:
(1) raw material SiO
2The oven dry of/PET matrix material is handled.Identical with the first step of embodiment 3.
(2) prepare composite material.Oven dry nanometer SiO with the first step preparation
2/ PET matrix material and special-purpose nucleator polyethers, ratio was composite in 1000: 2 by weight, by evenly stirring into composite material.
(3) modification is handled.With the composite material of second step preparation, insert the screw-type extruder granulation, barrel is respectively distinguished temperature and is controlled in 240 ℃～280 ℃ scopes, and pelletizing after extruding makes the nanometer SiO with high crystallization rate and high-crystallinity
2/ PET composite modification material particle.
(4) oven dry of modifying material particle is handled.Identical with the 5th step of embodiment 3.
(5) molded.Identical with the 6th step of embodiment 3.High crystallization rate, high-crystallinity and the demoulding are fast, the nanometer SiO of any surface finish thereby make
2/ ET engineering is moulded a goods.
Embodiment 6, as shown in Figure 2.Preparation has that high strength, high flame resistance, high crystallization rate and high-crystallinity and the demoulding are fast, any surface finish, not buckling deformation, can not rimose nanometer SiO
2/ PET engineering plastic product, its production stage is:
(1) raw material nano SiO
2The oven dry of/PET matrix material is handled.Identical with embodiment 3 first steps.
(2) preparation fire retardant.Identical with embodiment 3 second steps.
(3) prepare composite material.Will be as the prepared fire retardant of example 3 second steps and non-alkali glass staple fibre, special-purpose nucleator polyethers, in the given weight part ratio of embodiment 3,4,5, with the oven dry nanometer SiO of first step preparation
2/ PET matrix material is after fully stirring into composite material; Again described composite material is inserted in the baking oven, under 90 ℃ of temperature condition the oven dry 2 hours stand-by.
(4) modification is handled.With the composite material of third step preparation, insert screw-type extruder, barrel is respectively distinguished temperature and is controlled in 240 ℃～280 ℃ scopes, pelletizing after extruding, make have high strength, the nanometer SiO of high flame resistance and high crystallization rate, high-crystallinity
2/ PET composite modification material particle.
(5) oven dry of modifying material particle is handled.Identical with embodiment 3 the 5th step.
(6) molded.Identical with embodiment 3 the 6th step.Thereby make have high strength, high flame resistance, high crystallization rate, high-crystallinity and the demoulding is fast, any surface finish, not buckling deformation, can not rimose SiO
2/ PET engineering plastic product.
As most preferred embodiment 6 described nanometer SiO of the present invention
2The every technical performance index such as the following table of/PET composite modification material
As for the additive fire retardant that is used for described modification, alkali free glass fibre and special-purpose nucleator, be to add a kind of among the three, still two kinds, still three kinds, with and what of add-on, can determine according to the technical requirements of the engineering plastic product of being produced.
Above-mentioned nanometer SiO
2/ PET composite modification material, the engineering plastic product that is used to make can reach more that the demoulding is fast, shaping shrinkage rate is little, good, the no buckling deformation of surface smoothness, can not ftracture, and therefore is suitable for producing all kinds of injection-molded items and extruded product.And it has higher mechanical property, electrical property, thermal characteristics and flame retardant properties.Be applicable to and make various automobiles, electrical equipment, electronics, engineering plastic product such as mechanical.
The present invention advocates that the processing parameter of described injection moulding is: barrel is respectively distinguished temperature and is controlled in 240 ℃～270 ℃ scopes; Nozzle temperature is 260 ℃～270 ℃; Die temperature is controlled at more than 80 ℃, and die temperature by high temperature to cryogenic temperature-fall period, should keep middling speed to cool, make that described material modified to reach crystallization perfect, to guarantee the mechanical property and the molding effect of finished product; Injection pressure is controlled in 60～80Mpa scope, and its pressurize＞50% injection pressure, and back pressure is 200～400Kpa.
Claims (7)
1. nanometer SiO
2The production method of/PET engineering plastic product in the polyethylene terephthalate with per 100 weight parts, contains the single particle dispersive of 0.5～5.0 weight part, and particle diameter is the spherical SiO of 10～50nm
2SiO
2/ PET matrix material section is adopted common injection moulding/expressing technique as raw material, it is characterized in that, is implementing injection moulding/before extruding, and first described raw material is dried processing, make its water content≤40ppm after, produce nanometer SiO through injection moulding/extrude operation again
2/ PET engineering plastic product.
2. nanometer SiO according to claim 1
2The production method of/PET engineering plastic product is characterized in that, described oven dry is handled, and is that described raw material is placed in vacuum-drying or the hot air drier, dries 4～6 hours in 130 ℃～165 ℃ temperature ranges.
3. nanometer SiO according to claim 1
2The production method of/PET engineering plastic product, it is characterized in that, the raw material that described drying is handled, also with the fire retardant that is used for improving the finished product flame retardant properties, be used for improving the alkali free glass fibre of finished product intensity and resistance toheat and be used for improving a kind of among the special-purpose nucleator three of crystallization rate and degree of crystallinity or two kinds or three kinds form composite materials; And described composite material enters forcing machine by after evenly stirring, and is controlled under 240 ℃～280 ℃ conditions in the scope in the workspace temperature, gets modifying material through the forcing machine granulation; Again described modifying material was dried 1～4 hour in 80 ℃～120 ℃ temperature ranges; And then will be by the described modifying material of drying treatment, through injection moulding/extrude operation to produce engineering plastic product.
4. nanometer SiO according to claim 3
2The production method of/PET engineering plastic product is characterized in that, described fire retardant is the compound flame retardant of ten bromine bigeminy phenylates and antimonous oxide, and its composite weight part ratio is ten bromine bigeminy phenylates: antimonous oxide=3: 1; The composite weight part ratio of described raw material and described compound flame retardant is 100: 5～10, constitutes composite material thus; And described composite material, in 80 ℃～90 ℃ temperature ranges, dry 1～2 hour stand-by.
5. nanometer SiO according to claim 3
2The production method of/PET engineering plastic product is characterized in that, described alkali free glass fibre is long fibre or short fiber; The composite weight part ratio of described raw material and described alkali free glass fibre is 100: 10～30; Constitute composite material thus; And described composite material, in 90 ℃～100 ℃ temperature ranges, dry 2～3 hours stand-by.
6. nanometer SiO according to claim 3
2The production method of/PET engineering plastic product is characterized in that, described special-purpose nucleator is polyethers or Sodium Benzoate or talcum powder; The composite weight part ratio of described raw material and described special-purpose nucleator is 1000: 2～5, and it is stand-by to constitute composite material thus.
7. nanometer SiO according to claim 6
2The production method of/PET engineering plastic product is characterized in that, the composite weight part ratio of described raw material and described polyethers is 1000: 2; The composite weight part ratio of described raw material and described Sodium Benzoate is 1000: 3; Described raw material and talcous composite weight part ratio are 1000: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100235552A CN101270223B (en) | 2008-04-03 | 2008-04-03 | Process for preparing nano-SiO2/PET engineering plastic product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100235552A CN101270223B (en) | 2008-04-03 | 2008-04-03 | Process for preparing nano-SiO2/PET engineering plastic product |
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| Publication Number | Publication Date |
|---|---|
| CN101270223A CN101270223A (en) | 2008-09-24 |
| CN101270223B true CN101270223B (en) | 2011-05-04 |
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|---|---|---|---|
| CN2008100235552A Expired - Fee Related CN101270223B (en) | 2008-04-03 | 2008-04-03 | Process for preparing nano-SiO2/PET engineering plastic product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101555346B (en) * | 2009-05-25 | 2011-08-03 | 陈百良 | Nanometer polybutylene terephthalate (PBT) engineering plastic and fabrication method thereof |
| CN101974215A (en) * | 2010-10-21 | 2011-02-16 | 深圳市华力兴工程塑料有限公司 | Modified engineering plastic and preparation method thereof |
| CN106751554B (en) * | 2016-11-10 | 2018-10-16 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of sisal hemp reinforced polyester master batch and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063553A1 (en) * | 1998-05-29 | 1999-12-09 | E.I. Du Pont De Nemours And Company | Thick film resistor compositions for making heat-transfer tapes and use thereof |
| CN1594428A (en) * | 2004-07-02 | 2005-03-16 | 常州兆隆合成材料有限公司 | Nano SiO2 polyester composite materials and industrial yarn preparation process |
| CN1749312A (en) * | 2004-09-15 | 2006-03-22 | 中国科学院合肥物质科学研究院 | polymer/silicon dioxide nano particle composite material and preparation method thereof |
| CN101130625A (en) * | 2006-08-24 | 2008-02-27 | 中国科学院合肥物质科学研究院 | Flame-retardant polyester inorganic nano composite material and preparation method thereof |
-
2008
- 2008-04-03 CN CN2008100235552A patent/CN101270223B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063553A1 (en) * | 1998-05-29 | 1999-12-09 | E.I. Du Pont De Nemours And Company | Thick film resistor compositions for making heat-transfer tapes and use thereof |
| CN1594428A (en) * | 2004-07-02 | 2005-03-16 | 常州兆隆合成材料有限公司 | Nano SiO2 polyester composite materials and industrial yarn preparation process |
| CN1749312A (en) * | 2004-09-15 | 2006-03-22 | 中国科学院合肥物质科学研究院 | polymer/silicon dioxide nano particle composite material and preparation method thereof |
| CN101130625A (en) * | 2006-08-24 | 2008-02-27 | 中国科学院合肥物质科学研究院 | Flame-retardant polyester inorganic nano composite material and preparation method thereof |
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| CN101270223A (en) | 2008-09-24 |
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