CN102417716B - Permanent antistatic polybutylene terephthalate (PBT)/poly-p-phenylene oxide (PPO) alloy and production method thereof - Google Patents
Permanent antistatic polybutylene terephthalate (PBT)/poly-p-phenylene oxide (PPO) alloy and production method thereof Download PDFInfo
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- CN102417716B CN102417716B CN2011103769958A CN201110376995A CN102417716B CN 102417716 B CN102417716 B CN 102417716B CN 2011103769958 A CN2011103769958 A CN 2011103769958A CN 201110376995 A CN201110376995 A CN 201110376995A CN 102417716 B CN102417716 B CN 102417716B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The invention relates to a permanent antistatic polybutylene terephthalate (PBT)/poly-p-phenylene oxide (PPO) alloy and a production method thereof, wherein the material comprises the following components in percentage by weight: 3-8% of antistatic masterbatch, 40-45% of PBT, 40-50% of PPO and 1-5% of compalizer, wherein the antistatic masterbatch comprises the following components in percentage by weight: 1-15% of alkali metal salt, 0.1-2% of antioxidant, 0.1-2% of heat stabilizer, 0-10% of assistant antistatic agent and 70-95% of a high polymer material which contains polyether blocks, and the raw materials are weighed according to the weight percentages to mix, discharge, extrude and granulate. The invention has the advantages of permanent antistatic effect, realization of permanent antistatic effect, good antistatic effect and higher comprehensive mechanical property; and being approximate to the performance of the pure PBT/PPO alloy, having light color, being capable of being made up into other colors, and having low cost and good heat-resistant quality. The surface resistivity of the PBT/PPO alloy can reach 106-108 omega.m.
Description
Technical field
The present invention relates to a kind of permanent anti-static master batch and preparation method.The invention still further relates to a kind of permanent anti-static PBT/PPO alloy preparation method.
Background technology
PPO has that rigidity is large, thermotolerance is high, water-tolerant, difficult combustion, intensity be than advantages such as high electrical performance are good, also have the advantages such as wear-resisting, nontoxic, anti-pollution, its specific inductivity and dielectric loss are one of minimum kind in engineering plastics, be subjected to hardly the impact of temperature, humidity, can be used for basic, normal, high frequency electric field field.The load deformation temperature of PPO can reach more than 190 ℃, and embrittlement temperature is-170 ℃.PBT is that oyster white is translucent to opaque, crystalline thermoplastic polyester.Have high heat resistance, toughness, resistance to fatigue, self-lubricating, low-friction coefficient, weathering resistance, water-intake rate are low, are 0.1% only, still keep various physical property (comprising electrical property) in wet environment.
The PBT/PPO alloy has had the characteristic of PBT, PPO simultaneously concurrently, and this material is widely used.All have good electrical insulating property but the PBT/PPO alloy is the same with most of macromolecular materials, its surface resistivity is generally 10
13-10
15Ω .m, electroconductibility is much smaller than metallic substance.When contact or rub later on easy static electricity gathered lotus with other materials.The negative interaction that accumulation of static electricity brings has had a strong impact on production, life, work, sometimes even can cause fire and blast.In some specific work environments of weaving, coal mining and electronic enterprises, require the PBT/PPO alloy product when having the performances such as higher mechanical property, wear resistance, flame retardant resistance, also will have anti-static function, namely surface resistivity will arrive 10
9-10
11Ω .m, even to arrive 10
7-10
8Ω .m, and require permanent anti-static, to satisfy specific service requirements.
Summary of the invention
Purpose of the present invention is exactly for the service requirements to material of some specific work environments of satisfying weaving, coal mining and electronic enterprises, and a kind of permanent anti-static PBT/PPO alloy and preparation method are provided.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of permanent anti-static PBT/PPO alloy of the present invention, this material comprises following component and weight percentage: antistatic master granule 3-8%, PBT 40-45%, PPO 40-54%, compatilizer 1-5%.
Described permanent anti-static master batch comprises following component and weight percentage: an alkali metal salt 1-15%, and oxidation inhibitor 0.1-2%, thermo-stabilizer 0.1-2% helps static inhibitor 0-10%, contains the macromolecular material 70-95% of polyether block.
Described an alkali metal salt is M
+X
-, M wherein
+Be Li
+, Na
+, K
+X
-Be Cl
-, Br
-, I
-, CLO
4 -, preferred LiCLO
4
Described oxidation inhibitor is thiodiphenylamine and 1: 1 compound of phosphorous acid ester (s9228) weight ratio;
Described thermo-stabilizer is by weight 2: 1: 1 compound of organo-tin het stabilizer, calcium stearate, zinc stearate;
The described static inhibitor that helps is silicon-dioxide;
The described macromolecular material that contains polyether block is by weight 5: 1 compound of polyoxyethylene, polyethylene glycol methacrylic acid interpolymer; Between the preferred 6-16 ten thousand of the molecular weight of two kinds of polymkeric substance.
Described PBT limiting viscosity 0.8-1.5dL/g, the PPO limiting viscosity is 0.3-0.6dL/g.
Described compatilizer is the mixture of maleic anhydride graft polyoxyethylene and SEBS grafting GMA, and weight proportion is 1: 1.
The preparation method of this described a kind of permanent anti-static PBT/PPO alloy, method is as follows, by weight percentage sampling: antistatic master granule 3-8%, PBT 40-45%.PPO 40-50%, compatilizer 1-5%.Put into high-speed mixer and mixing 2-5 minute, then discharging uses the twin screw extruder extruding pelletization, and processing temperature is at 255-285 ℃, and the screw rod revolution is at 35-40Hz.
It is lasting that the antistatic master granule that the present invention adopts has antistatic effect, and addition is little but antistatic effect good, the PBT/PPO alloy property is affected little, of light color, the advantages such as cost is low, good heat resistance, especially with a lot of resins good consistency is arranged.The surface resistivity of this master batch itself is: 10
2-10
3Ω .m.Oxidation inhibitor and thermo-stabilizer can improve this master batch in the character such as anti-aging and heat-resisting degraded of the course of processing and use procedure.Help the adding of static inhibitor can improve the surfactivity of resin, improve static resistance.
The permanent anti-static PBT/PPO alloy that the present invention obtains has the effect that antistatic effect is lasting, reach permanent anti-static, antistatic effect is good, and comprehensive mechanical property is higher, near the performance of pure PBT/PPO alloy, the shades of colour that is made into of light color, cost is low, the advantages such as good heat resistance.The surface resistivity of this permanent anti-static PBT/PPO alloy can reach 10
6-10
8Ω .m.The mixture of maleic anhydride graft polyoxyethylene and SEBS grafting GMA joins the consistency of obviously having improved antistatic master granule and PBT/PPO alloy in the alloy as compatilizer, improved the over-all properties of material.
Compared with prior art, the invention has the beneficial effects as follows:
1, the permanent anti-static master batch surface resistivity of developing can reach 10
2-10
3Ω .m. can be widely used in modified PBT/PPO alloy; Compared with prior art, have an antistatic effect lasting, addition is little but antistatic effect good, on little, of light color, the advantages such as cost is low, good heat resistance of PBT/PPO alloy property impact, especially with a lot of resins good consistency is arranged.
2, the permanent anti-static PBT/PPO alloy of developing compared with prior art, has the effect that antistatic effect is lasting, reach permanent anti-static, antistatic effect is good, comprehensive mechanical property is higher, near the performance of pure PBT/PPO alloy, the shades of colour that is made into of light color, cost is low, the advantages such as good heat resistance.The surface resistivity of this permanent anti-static PBT/PPO alloy can reach 10
6-10
8Ω .m.This material is widely used in weaving, the parts of some specific work environments of coal mining and electronic enterprises.
Embodiment
The present invention will be further described below in conjunction with embodiment, but used embodiment just is used for explanation the present invention rather than restriction the present invention.
1, a kind of antistatic master granule and preparation method's embodiment:
Embodiment 1-5
The antistatic master granule formula for raw stock of embodiment 1-5 is as follows:
In above-described embodiment, described an alkali metal salt is M
+X
-, M wherein
+Be Li
+, Na
+, K
+X
-Be Cl
-, Br
-, I
-, CLO
4 -, preferred LiCLO
4
In above-described embodiment, described oxidation inhibitor is thiodiphenylamine and 1: 1 compound of phosphorous acid ester (s9228) weight ratio;
In above-described embodiment, described thermo-stabilizer is by weight 2: 1: 1 compound of organo-tin het stabilizer, calcium stearate, zinc stearate;
In above-described embodiment, the described static inhibitor that helps is silicon-dioxide;
In above-described embodiment, the described macromolecular material that contains polyether block is by weight 5: 1 compound of polyoxyethylene, polyethylene glycol methacrylic acid interpolymer; Between the preferred 6-16 ten thousand of the molecular weight of two kinds of polymkeric substance.
In above-described embodiment, described PBT limiting viscosity 0.8-1.5dL/g, the PPO limiting viscosity is 0.3-0.6dL/g.
In above-described embodiment, described compatilizer is the mixture of maleic anhydride graft polyoxyethylene and SEBS grafting GMA, and weight proportion is 1: 1.
Said components was put into high-speed mixer and mixing 2-5 minute in proportion, and then discharging uses the screw extrusion press extruding pelletization, and processing temperature is at 150-200 ℃, and the screw rod revolution is at 25-35Hz.
Sample according to embodiment 1-5 makes carries out the surface resistivity test comparison.
The test performance contrast is as shown in the table:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Surface resistivity | 10 6 | 10 3 | 10 2 | 10 4 | 10 2 |
The permanent anti-static master batch surface resistivity of developing according to above-mentioned prescription and technique can reach 10
6-10
8Ω .m. can be widely used in modified PBT/PPO alloy; Compared with prior art, have an antistatic effect lasting, addition is little but antistatic effect good, on little, of light color, the advantages such as cost is low, good heat resistance of PBT/PPO alloy property impact, especially with a lot of resins good consistency is arranged.
Embodiment 5 surface resistivities are minimum, cost performance is the highest.
The antistatic master granule that Application Example 5 prescriptions, process system are produced is used for following antistatic PBT/PPO alloy.
2, a kind of permanent anti-static PBT/PPO alloy and preparation method's embodiment:
Embodiment 1-5
The permanent anti-static PBT/PPO alloy raw material prescription of embodiment 1-5 is as follows:
Described PBT limiting viscosity 0.8-1.5dL/g, the PPO limiting viscosity is 0.3-0.6dL/g.
Described compatilizer is the mixture of maleic anhydride graft polyoxyethylene and SEBS grafting GMA, and weight proportion is 1: 1.
Said components was put into high-speed mixer and mixing 2-5 minute in proportion, and then discharging uses the screw extrusion press extruding pelletization, and processing temperature is at 255-285 ℃, and the screw rod revolution is at 35-40Hz.
According to the sample that embodiment 1-5 makes, carry out the performance test contrast, adopt the ASTM standard.
The test performance contrast is as shown in the table:
The permanent anti-static PBT/PPO alloy of developing according to above-mentioned prescription and technique compared with prior art, has the effect that antistatic effect is lasting, reach permanent anti-static, antistatic effect is good, comprehensive mechanical property is higher, near the performance of pure PBT/PPO alloy, the shades of colour that is made into of light color, cost is low, the advantages such as good heat resistance.The surface resistivity of this permanent anti-static PBT/PPO alloy can reach 10
6-10
8This material of Ω .m. is widely used in weaving, the parts of some specific work environments of coal mining and electronic enterprises
Embodiment 6
Take by weighing by weight ratio raw material: top described antistatic master granule 1%, PBT 40%, PPO 58%, compatilizer 1%, take by weighing by weight ratio raw material and put into high-speed mixer and mixing 2-5 minute, then discharging uses the twin screw extruder extruding pelletization, processing temperature is at 255-285 ℃, and the screw rod revolution is at 40Hz.The surface resistivity of obtained material is 10
14Ω .m.
Embodiment 7
Take by weighing by weight ratio raw material: top described antistatic master granule 7%, PBT 40%, PPO 48%, compatilizer 5%, take by weighing by weight ratio raw material and put into high-speed mixer and mixing 2-5 minute, then discharging uses the twin screw extruder extruding pelletization, processing temperature is at 255-285 ℃, and the screw rod revolution is at 40Hz.The surface resistivity of obtained material is 10
6Ω .m.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a permanent anti-static PBT/PPO alloy is characterized in that, this material comprises following component and weight percentage: antistatic master granule 3-8%, PBT 40-45%, PPO 40-54%, compatilizer 1-5%; Described antistatic master granule comprises following component and weight percentage: an alkali metal salt 1-15%, and oxidation inhibitor 0.1-2%, thermo-stabilizer 0.1-2% helps static inhibitor 0-10%, contains the macromolecular material 70-95% of polyether block; Described thermo-stabilizer is the by weight compound of 2:1:1 of organo-tin het stabilizer, calcium stearate, Zinic stearas; The described macromolecular material that contains polyether block is the by weight compound of 5:1 of polyoxyethylene, polyethylene glycol methacrylic acid interpolymer.
2. according to a kind of permanent anti-static PBT/PPO alloy claimed in claim 1, it is characterized in that, described an alkali metal salt is M
+X
-, M wherein
+Be Li
+, Na
+, K
+; X
-Be Cl
-, Br
-, I
-, ClO
4 -
3. a kind of permanent anti-static PBT/PPO alloy according to claim 1 is characterized in that, described oxidation inhibitor is thiodiphenylamine and phosphorous acid ester weight ratio 1:1 compound.
4. a kind of permanent anti-static PBT/PPO alloy according to claim 1 is characterized in that, the described static inhibitor that helps is silicon-dioxide.
5. each described a kind of permanent anti-static PBT/PPO alloy is characterized in that according to claim 1-4, described PBT limiting viscosity 0.8-1.5dL/g, and the PPO limiting viscosity is 0.3-0.6dL/g.
6. each described a kind of permanent anti-static PBT/PPO alloy is characterized in that according to claim 1-4, and described compatilizer is the mixture of maleic anhydride graft polyoxyethylene and SEBS grafting GMA, and weight proportion is 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103769958A CN102417716B (en) | 2011-11-23 | 2011-11-23 | Permanent antistatic polybutylene terephthalate (PBT)/poly-p-phenylene oxide (PPO) alloy and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103769958A CN102417716B (en) | 2011-11-23 | 2011-11-23 | Permanent antistatic polybutylene terephthalate (PBT)/poly-p-phenylene oxide (PPO) alloy and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417716A CN102417716A (en) | 2012-04-18 |
| CN102417716B true CN102417716B (en) | 2013-03-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348664C (en) * | 2005-08-19 | 2007-11-14 | 华南理工大学 | Preparation method of nylon 6/polyelectrolyte anti electrostatic composite material and anti electrostatic mother particle |
| CN101759964B (en) * | 2008-12-23 | 2013-03-20 | 上海金发科技发展有限公司 | Polybutylene terephthalate/polyphenylether composite material |
| CN102061050B (en) * | 2010-12-02 | 2012-09-05 | 浙江三和塑料有限公司 | All-weather persistent antistatic master batch capable of being subjected to thermoplastic processing and antistatic composite material |
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