CN107216620A - A kind of PBT material and preparation method thereof - Google Patents
A kind of PBT material and preparation method thereof Download PDFInfo
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- CN107216620A CN107216620A CN201710494494.7A CN201710494494A CN107216620A CN 107216620 A CN107216620 A CN 107216620A CN 201710494494 A CN201710494494 A CN 201710494494A CN 107216620 A CN107216620 A CN 107216620A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The present invention is a kind of PBT material and preparation method thereof, belongs to technical field of polymer materials.A kind of PBT material, includes the raw material of following percentage by weight：Polybutylene terephthalate (PBT) 55 75%；TPEE 15 35%；Calcium carbonate 0.2 1.0%；1,4 butanediols 2.0 5.0%；Antioxidant 0.5 2.0%；Cumyl peroxide 0.5 3.0%；Crosslinking agent 2.0 5.0%；Light stabilizer 0.2 1.5%；Hydrolysis agent 0.2 1.0%.The present invention also disclosed the preparation method of the PBT material.A kind of PBT material of the present invention and preparation method thereof, the PBT material uses TPEE and antioxidant 1010, make product that there is good elasticity, improve impact strength, toughness and ageing resistace, so that its mechanics and machining property are more excellent, product service life is extended, stability more preferably, has widened the use scope of PBT material；And solve to have showed after existing PBT resin toughness reinforcing, its mechanical strength does not reach the technical problem of use requirement；The preparation method technique is simple, it is easy to industrialized production.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of PBT material and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT), abbreviation PBT is most important thermoplastic polyester high polymer material, is five big logical
With one of engineering plastics, due to its excellent mechanical property and processing characteristics, in automobile, plant equipment, precision instrument part, electricity
The fields such as sub- electrical equipment, weaving are widely used.
PBT resin is a kind of semi-crystalline polymer, the ability with rapid crystallization, its solid phase be a kind of orderly spherocrystal with
The mixture of amorphous noncrystalline domain, the characteristic of this two-phase is compared with the unformed resin such as ABS, polystyrene, makes it
Both there is higher intensity, hardness, case hardness and rigidity.The glass transition temperature that amorphous region has, assigns it bigger again
Extensibility.Because PBT resin is sensitive to notch impact strength, with larger fragility, particularly under cryogenic toughness compared with
Difference, limits it and uses scope.PBT resin typically all can just be used by modified, especially enhanced to its toughness reinforcing to change
Property be to realize its high performance, widen a kind of important directions using scope.
CN104177793A reports a kind of PBT toughener based on elastomer resin, preparation method and its purposes.The hair
It is bright to be added using POE, EEA, grafted monomers and liquid adjuvants as raw material after premix in double screw extruder, carry out after extruding pelletization
Toughener is obtained, it is good to PBT resin toughening effect, and certain mechanical property can be kept.
The A of CN 105820490 report a kind of PBT plasticizing mother particles and preparation method thereof.The invention with elastomer resin and
PBT resin compounding is base material, and one-step method completes elastomer resin grafting and prepared by PBT plasticizing mother particles.Plasticizing mother particle melting temperature
Degree is higher than 120 DEG C, and 90-120 DEG C of hot air circulation drying is blended without clay with PBT resin.PBT plasticizing mother particles prepared by the invention
Dispersion effect is good, and toughening effect is good, and preparation process is simply, conveniently.
But above-mentioned two invention, which prepares PBT toughening materials, has shortcoming, mainly PBT is added in addition elastomer
While toughness, its mechanical strength is not reinforced, and on a declining curve to a certain extent, does not reach use requirement, while water-fast
Solution property is not enough, is applied to promote producing restriction effect.
In view of this, it is necessary to while proposing a kind of raising PBT toughness, its mechanical strength is not influenceed, and strengthen its power
Learn the PBT material of performance and the preparation method of the material.
The content of the invention
It is an object of the invention to provide a kind of PBT material, the PBT material while PBT toughness not enough problem is solved,
Its mechanical strength is not influenceed, and strengthens its mechanical property, is solved after existing PBT resin toughness reinforcing, its mechanical strength, which does not reach, to be used
It is required that and the poor technical problem of hydrolytic resistance.
To achieve these goals, the technical scheme used for：
A kind of PBT material, includes the raw material of following percentage by weight：
Polybutylene terephthalate (PBT)：55-75%；
TPEE：15-35%；
Calcium carbonate：0.2-1.0%；
1,4- butanediols：2.0-5.0%；
Antioxidant：0.5-2.0%；
Cumyl peroxide：0.5-3.0%；
Crosslinking agent：2.0-5.0%；
Light stabilizer：0.2-1.5%；
Hydrolysis agent：0.2-1.0%.
Further, the antioxidant is antioxidant 1010；
The crosslinking agent is glycerine；
The light stabilizer is triphenyl phosphite；
The hydrolysis agent is polycarbodiimide.
Another object of the present invention is to provide the preparation method of above-mentioned PBT material, and the preparation method technique is simple, it is easy to
Industrialized production.
To achieve these goals, the technical scheme used for：
A kind of preparation method of PBT material, comprises the following steps：
By polybutylene terephthalate (PBT), TPEE, calcium carbonate, 1,4- butanediols, antioxidant, cumyl peroxide,
Crosslinking agent, light stabilizer and hydrolysis agent, which are added, to be stirred in mixer to well mixed, obtains mixture；
Mixture is melted by double screw extruder, knead, extruded, then through cooling, pelletizing, drying, obtains the PBT materials
Material.
Further, the mixture includes the raw material of following percentage by weight：Polybutylene terephthalate (PBT) 55-
75%, TPEE15-35%, calcium carbonate 0.2-1.0%, BDO 2.0-5.0%, antioxidant 0.5-2.0%, peroxidating two
Isopropylbenzene 0.5-3.0%, crosslinking agent 2.0-5.0%, light stabilizer 0.2-1.5%, hydrolysis agent 0.2-1.0%.
Further, the antioxidant is antioxidant 1010；
The crosslinking agent is glycerine；
The light stabilizer is triphenyl phosphite；
The hydrolysis agent is polycarbodiimide.
Further, the extrusion temperature of the double screw extruder is 220-250 DEG C.
Compared with being limited to technology, the beneficial effects of the present invention are：
1st, a kind of PBT material of the present invention, toughener is used as using TPEE so that product of the present invention has good
Elasticity, impact strength is improved, and toughness more preferably, has widened the use scope of PBT material.
2nd, contain antioxidant 1010 in a kind of PBT material of the present invention, improve product ageing resistace, extend
Its product service life；The hydrolysis agent contained, solves the problem of hydrolytic resistance is poor after PBT material toughness reinforcing.
3rd, a kind of PBT material of the present invention, mechanics and machining property are more excellent, and stability is good.
4th, a kind of PBT material of the present invention, while PBT toughness deficiency problem is solved, does not influence its mechanics strong
Degree, and strengthen its mechanical property, solve after existing PBT resin toughness reinforcing, its mechanical strength does not reach use requirement and hydrolytic resistance
The technical problem of difference.
5th, a kind of preparation method of PBT material of the present invention, the preparation method technique is simple, it is easy to industrial metaplasia
Production.
Embodiment
In order to which a kind of PBT material of the invention and preparation method thereof is expanded on further, expected goal of the invention is reached, below in conjunction with
Preferred embodiment, to according to a kind of PBT material proposed by the present invention and preparation method thereof, its embodiment, structure, feature
And its effect, describe in detail as after.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily same
Embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be combined by any suitable form.
Before a kind of PBT material of the invention and preparation method thereof is elaborated, it is necessary to the phase referred in the present invention
Close material etc. to be described further, to reach more preferable effect.
The unreceipted production firm person of raw materials used or equipment in the present invention, is that can be produced by the routine of acquisition purchased in market
Product.
TPEE, polyether ester thermoplastic elastomer is the block copolymer containing polyester hard section and polyester soft segment.Wherein polyethers
Soft segment and uncrystallized polyester formation amorphous phase polyester hard section partially crystallizable formation crystalline domains, play the work of physical crosslinking point
With.TPEE has the elasticity of rubber and the intensity of engineering plastics；Soft segment assigns its elasticity, makes it as rubber；Hard section assigns it and added
Work performance, makes it as plastics；Compared with rubber, it has more preferable processing characteristics and longer service life；With engineering material phase
Than, equally there is the characteristics of intensity is high, and pliability and dynamic mechanical are more preferable.TPEE is mainly used in requirement damping, resistance to punching
Hit, warping strength, sealing and elasticity, oil resistant, chemicals-resistant and the field for requiring sufficient intensity.
Calcium carbonate is a kind of inorganic compound, is commonly called as lime stone, lime stone, stone flour, marble, calcite, is a kind of chemical combination
Thing, chemical formula is CaCO3, in neutrality, it is substantially insoluble in, is dissolved in acid.Calcium carbonate is filled out as inorganic filler applied to plastics
Fill existing history for many years.Past calcium carbonate is widely used generally as filler using reducing cost as main purpose, and is received
Better effects.In recent years, as upper extensive use of production finds that filling substantial amounts of calcium carbonate can also accomplish with substantial amounts of research
The performance of product is significantly reduced, or even some aspects can also be increased substantially, such as mechanical performance, hot property.
BDO (abbreviation BDO), alias:Isosorbide-5-Nitrae-dihydroxy butane, molecular formula is C4H10O2,
HOCH2CH2CH2CH2OH, molecular weight is 90.12, colorless viscous oily liquids.It is flammable, 20.1 DEG C of freezing point, 20.2 DEG C of fusing point,
228 DEG C of boiling point, 171 DEG C (13.3kPa), 120 DEG C (1.33kPa), 86 DEG C (0.133kPa), relative density 1.0171 (20/4
DEG C), refractive index 1.4461 is water-miscible, is dissolved in methanol, ethanol, acetone, is slightly soluble in ether.There are hygroscopicity, bitter.1,4-
Butanediol is a kind of important organic chemical industry and fine chemical material, is production polybutylene terephthalate (PBT) (PBT) engineering
The base stock of plastics and PBT fibers.
Antioxidant 1010, chemistry is entitled：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, be
White crystalline powder, dissolves in benzene, acetone, chloroform, is slightly soluble in ethanol, water insoluble, and chemical property is stable；It can be widely applied to
In general-purpose plastics, engineering plastics, synthetic rubber, fiber, PUR, resin, oil product, ink, the industry such as coating.
Cumyl peroxide, also known as vulcanizing agent DCP, the cumin of peroxidating two, molecular formula is C18H22O2, relative molecular mass
It is white crystals for 270.37.Stablize at room temperature, see that light gradually becomes slightly yellow.It is water insoluble, it is dissolved in ethanol, ether, second
Acid, benzene and petroleum ether.It is a kind of strong oxidizer.The initiator that can polymerize as monomer, the vulcanizing agent of high polymer material, crosslinking
Agent, curing agent, flame-retardant additive etc..
Crosslinking agent is that one kind can be in intermolecular bridging action of line style, so that multiple linear molecules are mutually bonded and are cross-linked into
The material of network structure, is the material of promotion or regulation polymer molecule interchain covalent bond or ionic bond formation.Selected in the present invention
It is crosslinking agent with glycerine.
Glycerine is no clear and bright thick liquid of color and taste sweet tea, and odorless has warm sweet taste.National standard is referred to as glycerine, can be from air
Middle absorption moisture, can also absorb hydrogen sulfide, hydrogen cyanide and sulfur dioxide, be insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, stone
Oily ether and oils.Relative density 1.26362.17.8 DEG C of fusing point.290.0 DEG C of boiling point (decomposition).Index of refraction 1.4746.Flash-point (is opened
Cup) 176 DEG C.
Light stabilizer is a kind of additive of high molecular products (such as plastics, rubber, coating, synthetic fibers), and it can shield
Cover or absorb the energy of ultraviolet, quenching singlet oxygen and hydroperoxides are resolved into the functions such as inert matter, make high score
Sub- polymer can exclude under the radiation of light or slow down photochemical reaction possibility, prevent or postpone the process of light aging, so that
Reach the purpose of extension high polymer product service life.The present invention is light stabilizer from triphenyl phosphite.
Triphenyl phosphite, alias is triphenyl, and molecular formula is C18H15O3P, relative molecular weight is 310.29,
It is colourless pale yellow transparent oily liquids, water insoluble, irritant smell when more than room temperature.For the representative product of Phosphorus antioxidant
Kind, chelating agent and stabilizer in PVC product produce the important intermediate of trialkyl phosphite.
Polycarbodiimide, also known as age resistor PCD.Brown ceramic powder, relative density 1.05,70-80 DEG C of softening point is soluble in
Oil, benzene, carbon tetrachloride and ethyl acetate, are insoluble in acetone, insoluble in second alcohol and water；It is anti-as mixed plastotype polyurethane rubber
Hydrolytic reagent and antioxidant, can improve the stability of vulcanizate, delay the generation of sizing material hydrolysis phenomena.Preferably higher than its softening point
At a temperature of be mixed into sizing material, its effect can be improved.The present invention is hydrolysis agent from polycarbodiimide.
After above-mentioned related raw material has been understood, below in conjunction with specific embodiments, to a kind of PBT material of the invention and
Its preparation method is further described in detail：
One embodiment
Embodiment 1.
Raw material and its percentage by weight：
Polybutylene terephthalate (PBT)：55kg, (55%)；
Polyether ester thermoplastic elastomer:35kg, (35%)；
Calcium carbonate：1.0kg, (1%)；
1,4- butanediols：2.0kg, (2%)；
Antioxidant 1010：1.5kg, (1.5%)；
Cumyl peroxide：1.0kg, (1%)；
Glycerine：2.0kg, (2%)；
Triphenyl phosphite：1.5kg, (1.5%)；
Polycarbodiimide：1.0kg, (1%).
Concrete operation step is：
(1) polybutylene terephthalate (PBT) 55kg, polyether ester thermoplastic elastomer 35kg, calcium carbonate 1.0kg, 1 are weighed,
4- butanediols 2.0kg, cumyl peroxide 1.0kg, glycerine 2.0kg, triphenyl phosphite 1.5kg, polycarbodiimide
1.0kg and 1.5kg antioxidant 1010, these raw materials are added and stirred in homogenizer to well mixed, mixture is obtained；
(2) mixture is delivered into double screw extruder melting, mixing, extrusion, extruder temperature is controlled at 220 DEG C, through cold
But, pelletizing, drying, are finally packed, i.e., described PBT material.
A kind of PBT material of the present invention and preparation method thereof, toughener is used as using TPEE so that product of the present invention
With good elasticity, impact strength and toughness are improved, and the antioxidant 1010 contained improves product ageing resistace, so that
Its mechanics and machining property are more excellent, extend product service life, and stability more preferably, has widened the use of PBT material
Scope；And solve to have showed after existing PBT resin toughness reinforcing, its mechanical strength does not reach use requirement and the not enough skill of hydrolytic resistance
Art problem；The preparation method technique is simple, it is easy to industrialized production.
Embodiment 2.
Raw material and its percentage by weight：
Polybutylene terephthalate (PBT)：75kg, (75%)；
Polyether ester thermoplastic elastomer：15kg, (15%)；
Calcium carbonate：0.8kg, (0.8%)；
1,4- butanediols：3.0kg, (3%)；
Antioxidant 1010：1.0kg, (1%)；
Cumyl peroxide：0.5kg, (0.5%)；
Glycerine：4.0kg, (4%)；
Triphenyl phosphite：0.5kg, (0.5%)；
Polycarbodiimide：0.2kg, (0.2%).
Concrete operation step is：
(1) polybutylene terephthalate (PBT) 75kg, polyether ester thermoplastic elastomer 15kg, calcium carbonate 0.8kg, 1 are weighed,
4- butanediols 3.0kg, cumyl peroxide 0.5kg, glycerine 4.0kg, triphenyl phosphite 0.5kg, polycarbodiimide
0.2kg and 1.0kg antioxidant 1010, these raw materials are added and stirred in homogenizer to well mixed, mixture is obtained；
(2) mixture is delivered into double screw extruder melting, mixing, extrusion, extruder temperature is controlled at 250 DEG C, through cold
But, pelletizing, drying, are finally packed, i.e., described PBT material.
A kind of PBT material of the present invention and preparation method thereof, toughener is used as using TPEE so that product of the present invention
With good elasticity, impact strength and toughness are improved, and the antioxidant 1010 contained improves product ageing resistace, so that
Make its mechanics and machining property more excellent, extend product service life, stability more preferably, has widened making for PBT material
Use scope；And solve to have showed after existing PBT resin toughness reinforcing, it is not enough that its mechanical strength does not reach use requirement and hydrolytic resistance
Technical problem；The preparation method technique is simple, it is easy to industrialized production.
Embodiment 3.
Raw material and its percentage by weight：
Polybutylene terephthalate (PBT)：72kg, (72%)；
Polyether ester thermoplastic elastomer：18kg, (18%)；
Calcium carbonate：0.5kg, (0.5%)；
1,4- butanediols：4.0kg, (4%)；
Antioxidant 1010：1.5kg, (1.5%)；
Cumyl peroxide：1.3kg, (1.3%)；
Glycerine：2.0kg, (2%)；
Triphenyl phosphite：0.4kg, (0.4%)；
Polycarbodiimide：0.3kg, (0.3%).
Concrete operation step is：
(1) polybutylene terephthalate (PBT) 72kg, polyether ester thermoplastic elastomer 18kg, calcium carbonate 0.5kg, 1 are weighed,
4- butanediols 4.0kg, cumyl peroxide 1.3kg, glycerine 2.0kg, triphenyl phosphite 0.4kg, polycarbodiimide
0.3kg and 1.5kg antioxidant 1010, these raw materials are added and stirred in homogenizer to well mixed, mixture is obtained；
(2) mixture is delivered into double screw extruder melting, mixing, extrusion, extruder temperature is controlled at 240 DEG C, through cold
But, pelletizing, drying, are finally packed, i.e., described PBT material.
A kind of PBT material of the present invention and preparation method thereof, toughener is used as using TPEE so that product of the present invention
With good elasticity, impact strength and toughness are improved, and the antioxidant 1010 contained improves product ageing resistace, so that
Make its mechanics and machining property more excellent, extend product service life, stability more preferably, has widened making for PBT material
Use scope；And solve to have showed after existing PBT resin toughness reinforcing, it is not enough that its mechanical strength does not reach use requirement and hydrolytic resistance
Technical problem；The preparation method technique is simple, it is easy to industrialized production.
Embodiment 4.
Raw material and its percentage by weight：
Polybutylene terephthalate (PBT)：65kg, (68%)；
Polyether ester thermoplastic elastomer：20kg, (20%)；
Calcium carbonate：0.2kg, (0.2%)；
1,4- butanediols：5.0kg, (5%)；
Antioxidant 1010：2.0kg, (2%)；
Cumyl peroxide：2.0kg, (2%)；
Glycerine：5.0kg, (5%)；
Triphenyl phosphite：0.2kg, (0.2%)；
Polycarbodiimide：0.4kg, (0.4%).
Concrete operation step is：
(1) polybutylene terephthalate (PBT) 65kg, polyether ester thermoplastic elastomer 20kg, calcium carbonate 0.2kg, 1 are weighed,
4- butanediols 5.0kg, cumyl peroxide 2.0kg, glycerine 5.0kg, triphenyl phosphite 0.2kg, polycarbodiimide
0.4kg and 2.0kg antioxidant 1010, these raw materials are added and stirred in homogenizer to well mixed, mixture is obtained；
(2) mixture is delivered into double screw extruder melting, mixing, extrusion, extruder temperature is controlled at 235 DEG C, through cold
But, pelletizing, drying, are finally packed, i.e., described PBT material.
A kind of PBT material of the present invention and preparation method thereof, toughener is used as using TPEE so that product of the present invention
With good elasticity, impact strength and toughness are improved, and the antioxidant 1010 contained improves product ageing resistace, so that
Make its mechanics and machining property more excellent, extend product service life, stability more preferably, has widened making for PBT material
Use scope；And solve to have showed after existing PBT resin toughness reinforcing, its mechanical strength does not reach the technical problem of use requirement；It is described
Preparation method technique is simple, it is easy to industrialized production.
Embodiment 5.
Raw material and its percentage by weight：
Polybutylene terephthalate (PBT)：70kg, (70%)；
Polyether ester thermoplastic elastomer：15.4kg, (15%.4)；
Calcium carbonate：0.9kg, (0.9%)；
1,4- butanediols：3.0kg, (3%)；
Antioxidant 1010：0.5kg, (0.5%)；
Cumyl peroxide：3.0kg, (3%)；
Glycerine：5.0kg, (5%)；
Triphenyl phosphite：1.4kg, (1.4%)；
Polycarbodiimide：0.8kg, (0.8%).
Concrete operation step is：
(1) weigh polybutylene terephthalate (PBT) 70kg, polyether ester thermoplastic elastomer 15.4kg, calcium carbonate 0.9kg,
1,4- butanediols 3.0kg, cumyl peroxide 3.0kg, glycerine 5.0kg, triphenyl phosphite 1.4kg, poly- carbonization two are sub-
Amine 0.8kg and 0.5kg antioxidant 1010, these raw materials are added and stirred in homogenizer to well mixed, mixture is obtained；
(2) mixture is delivered into double screw extruder melting, mixing, extrusion, extruder temperature is controlled at 230 DEG C, through cold
But, pelletizing, drying, are finally packed, i.e., described PBT material.
A kind of PBT material of the present invention and preparation method thereof, toughener is used as using TPEE so that product of the present invention
With good elasticity, impact strength and toughness are improved, and the antioxidant 1010 contained improves product ageing resistace, so that
Make its mechanics and machining property more excellent, extend product service life, stability more preferably, has widened making for PBT material
Use scope；And solve to have showed after existing PBT resin toughness reinforcing, it is not enough that its mechanical strength does not reach use requirement and hydrolytic resistance
Technical problem；The preparation method technique is simple, it is easy to industrialized production.
Two performance tests
Mechanics Performance Testing, mechanical property are carried out to the PBT material obtained by above-described embodiment 1-5 and common PBT material
Test environment：23 DEG C, dry state and the results are shown in Table 1 at test event, the standard of test institute foundation.
The PBT material performance detection data of table 1
As shown in Table 1, the PBT material that prepared by embodiment 1-5 is while impact strength, i.e. impact flexibility is improved, stretching
Intensity does not decline, or even increases, and meets use requirement, and stability more preferably, has widened the use scope of PBT material.Say
Bright a kind of PBT material of the present invention and preparation method thereof, it is not influenceed while PBT material toughness deficiency problem is solved
Mechanical strength, it is possible to strengthen its mechanical property, is solved after existing PBT resin toughness reinforcing, and its mechanical strength, which does not reach to use, to be wanted
The not enough technical problem of hydrolytic resistance of summing.
It is described above, only it is the preferred embodiment of the embodiment of the present invention, not makees any shape to the embodiment of the present invention
Limitation in formula, according to the embodiment of the present invention technical spirit above example is made any simple modification, equivalent variations
With modification, in the range of still falling within technical scheme of the embodiment of the present invention.
Claims (6)
1. a kind of PBT material, it is characterised in that include the raw material of following percentage by weight：
Polybutylene terephthalate (PBT)：55-75%；
TPEE：15-35%；
Calcium carbonate：0.2-1.0%；
1,4- butanediols：2.0-5.0%；
Antioxidant：0.5-2.0%；
Cumyl peroxide：0.5-3.0%；
Crosslinking agent：2.0-5.0%；
Light stabilizer：0.2-1.5%；
Hydrolysis agent：0.2-1.0%.
2. PBT material according to claim 1, it is characterised in that wherein,
The antioxidant is antioxidant 1010；
The crosslinking agent is glycerine；
The light stabilizer is triphenyl phosphite；
The hydrolysis agent is polycarbodiimide.
3. a kind of preparation method of PBT material, it is characterised in that comprise the following steps：
By polybutylene terephthalate (PBT), TPEE, calcium carbonate, 1,4- butanediols, antioxidant, cumyl peroxide, crosslinking
Agent, light stabilizer and hydrolysis agent, which are added, to be stirred in mixer to well mixed, obtains mixture；
Mixture is melted by double screw extruder, knead, extruded, then through cooling, pelletizing, drying, obtains the PBT material.
4. preparation method according to claim 3, it is characterised in that wherein,
The mixture includes the raw material of following percentage by weight：Polybutylene terephthalate (PBT) 55-75%, TPEE15-
35%, calcium carbonate 0.2-1.0%, BDO 2.0-5.0%, antioxidant 0.5-2.0%, cumyl peroxide 0.5-
3.0%, crosslinking agent 2.0-5.0%, light stabilizer 0.2-1.5%, hydrolysis agent 0.2-1.0%.
5. preparation method according to claim 4, it is characterised in that wherein,
The antioxidant is antioxidant 1010；
The crosslinking agent is glycerine；
The light stabilizer is triphenyl phosphite；
The hydrolysis agent is polycarbodiimide.
6. preparation method according to claim 3, it is characterised in that wherein,
The extrusion temperature of the double screw extruder is 220-250 DEG C.
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| CN112735704A (en) * | 2020-12-11 | 2021-04-30 | 河源市可顺绝缘材料有限公司 | Ultrahigh voltage-resistant insulating material and electric shock gun insulating wire using same |
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