CN106336625A - High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof - Google Patents
High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof Download PDFInfo
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- CN106336625A CN106336625A CN201610716795.5A CN201610716795A CN106336625A CN 106336625 A CN106336625 A CN 106336625A CN 201610716795 A CN201610716795 A CN 201610716795A CN 106336625 A CN106336625 A CN 106336625A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a high-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and a preparation method thereof. The high-strength heatproof PBT-PP alloy comprises the following components in parts by weight: 75-90 parts of PBT, 45-60 parts of PP, 30-45 parts of glass fiber, 10-15 parts of a compatilizer, 20-25 parts of dibutyl phthalate, 15-20 parts of benzalacetone, 1.5-2 parts of a lubricant, and 8-15 parts of disulfide. The technical scheme can satisfy high hear resistance, high mechanical propertiesm, chemical reagent-resistance, weatherability, excellent electrical property, low water absorption, high aging resistance, size stability, obvious processing property, good warping degree and surface fineness through reasonable proportion and combination of the components, the alloy has high surface gloss and warping degree, and the preparation technology has the advantages of simple process and low cost.
Description
Technical field
The invention belongs to new forms of energy and environmental protection and energy saving technical field, more particularly, to a kind of high strength heat resistant of high-efficiency environment friendly
Pbt-pp alloy and preparation method thereof.
Background technology
Pbt (polybutylene terephthalate (PBT)) is a kind of thermoplastic engineering plastic of hemicrystalline, and it has high resistance to
Hot, high mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate are low.After enhancing modified
Pbt, its mechanical performance is more excellent, is widely used in the electric, field such as automobile, plant equipment.But due to pbt
Molecule chain rigidity is larger, and, to notch sensitive, notch shock is low for it.Pp (polypropylene) be the maximum general-purpose plastics of current consumption it
One, belong to a kind of those semi-crystalline materials, there is light weight, good electrical insulating property, chemical resistance, fatigue durability, thermostability, excellent
Good mechanical property and moulding processability, and price is minimum in general-purpose plastics, thus it is widely used in commercial production
Every field.But pp there is also some shortcomings, black brittleness is big, and resistance to ag(e)ing is bad and dimensional stability is poor.
Do not have a kind of material in existing market and can either meet high thermostability, high mechanical property, chemically-resistant examination
Agent, weatherability, excellent electrical property and water absorption rate are low and can have higher resistance to ag(e)ing, dimensional stability and processability
Energy.
Content of the invention
In view of the problems of prior art, a kind of present invention height with different mechanical property and smooth surface of offer
High strength heat resistant pbt-pp alloy of the low warpage of gloss and preparation method thereof.
The technical scheme is that a kind of the invention provides high strength heat resistant pbt-pp
Alloy, including the component of following weight portion: pbt75～90 weight portion, pp45～60 weight portion, glass fibre 30～45 weight
Part, compatilizer 10～15 weight portion, dibutyl phthalate 20～25 weight portion, benzylideneacetone 15～20 weight portion, lubrication
Agent 1.5～2 weight portion, double thioether 8～15 weight portion.
The invention has the beneficial effects as follows: inventor's early stage has carried out substantial amounts of component and the screening experiment of consumption, unexpected
Discovery, technical scheme can either meet high thermostability, height by the combination of rational proportioning and each component
Mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate low and can have higher resistance to ag(e)ing,
Dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and warpage simultaneously
Degree, and its preparation process is simple, low cost.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described pbt is 75 weight portions, and described pp is 45 weight portions, and described glass fibre is 30 weight portions, institute
Stating compatilizer is 10 weight portions, and described dibutyl phthalate is 20 weight portions, and described benzylideneacetone is 15 weight portions, described
Lubricant is 1.5 weight portions, and described double thioether is 8 weight portions.
Further, described pbt intrinsic viscosity is 0.8-1.3d l/g.
Further, described compatilizer is eva and/or eva-g-mah.
The present invention also provides a kind of preparation method of the high strength heat resistant pbt-pp alloy of above-mentioned high-efficiency environment friendly, and the method is adopted
With following steps: (1) weighs pbt75～90 weight portion, pp45～60 weight portion, glass fibre 30～45 weight portion, compatilizer
10～15 weight portions, dibutyl phthalate 20～25 weight portion, benzylideneacetone 15～20 weight portion, lubricant 1.5～2 weight
Amount part, double thioether 8～15 weight portion, and each component is positioned in high-speed mixer, mix homogeneously at ambient temperature；(2)
The mixture produced in step (1) is sent in double screw extruder, controls extrusion temperature to be 190-230 DEG C, screw speed is
200-500 rev/min, add glass fibre 30～45 weight portion in extruder the 4th humidity province, through melt blending extrusion, draw
Bar, obtains fiberglass reinforced pbt/pp alloy after water cooled, dry, pelletizing.
Beneficial effect using such scheme is: the high strength heat resistant pbt-pp alloy using said method preparation can be expired
The high thermostability of foot, high mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate are low and can have
Higher resistance to ag(e)ing, dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher simultaneously
Surface gloss and angularity, and its preparation process is simple, manufacturing cost is lower, and production efficiency is higher, disclosure satisfy that large quantities of
The demand that amount produces.
Specific embodiment
Hereinafter the principle and feature of the present invention is described, example is served only for explaining the present invention, is not intended to limit
Determine the scope of the present invention.
The invention provides a kind of high strength heat resistant pbt-pp alloy, including the component of following weight portion: pbt75～90 weight
Amount part, pp45～60 weight portion, glass fibre 30～45 weight portion, compatilizer 10～15 weight portion, dibutyl phthalate
20～25 weight portions, benzylideneacetone 15～20 weight portion, lubricant 1.5～2 weight portion, double thioether 8～15 weight portion.
The invention has the beneficial effects as follows: inventor's early stage has carried out substantial amounts of component and the screening experiment of consumption, unexpected
Discovery, technical scheme can either meet high thermostability, height by the combination of rational proportioning and each component
Mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate low and can have higher resistance to ag(e)ing,
Dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and warpage simultaneously
Degree, and its preparation process is simple, low cost.
To be introduced below by specific embodiment.
Embodiment 1
A kind of high strength heat resistant pbt-pp alloy of high-efficiency environment friendly, including following weight portion: described pbt is 75 weight portions,
Described pp is 45 weight portions, and described glass fibre is 30 weight portions, and described compatilizer is 10 weight portions, described phthalic acid two
Butyl ester is 20 weight portions, and described benzylideneacetone is 15 weight portions, and described lubricant is 1.5 weight portions, and described double thioether is 8 weight
Part.
Embodiment 2
A kind of high strength heat resistant pbt-pp alloy of high-efficiency environment friendly, including following weight portion: described pbt is 80 weight portions,
Described pp is 50 weight portions, and described glass fibre is 35 weight portions, and described compatilizer is 13 weight portions, described phthalic acid two
Butyl ester is 23 weight portions, and described benzylideneacetone is 18 weight portions, and described lubricant is 1.8 weight portions, and described double thioether is 10 weights
Amount part.
Embodiment 3
A kind of high strength heat resistant pbt-pp alloy of high-efficiency environment friendly, including following weight portion: described pbt is 90 weight portions,
Described pp is 60 weight portions, and described glass fibre is 45 weight portions, and described compatilizer is 15 weight portions, described phthalic acid two
Butyl ester is 25 weight portions, and described benzylideneacetone is 20 weight portions, and described lubricant is 2 weight portions, and described double thioether is 15 weight
Part.Wherein, described pbt intrinsic viscosity is 0.8-1.3dl/g, and described compatilizer is eva and/or eva-g-mah, by upper
State the pbt of content and compatilizer can preferably increase the mechanical property of whole high strength heat resistant pbt-pp alloy, by adding
Benzylideneacetone can improve the glossiness of high strength heat resistant pbt-pp alloy surface.
Comparative example 1
Described dibutyl phthalate replaces with propylene-glycol ethyl ether, and described propylene-glycol ethyl ether is that remaining is equal for 30 weight portions
Same as Example 1.
Comparative example 2
Compared with comparative example 1, remaining is all same as Example 1 not to add double thioether and benzylideneacetone in comparative example two.
Comparative example 3
The weight portions such as described dibutyl phthalate are replaced with polyvinyl butyral resin, remaining all with embodiment 1 phase
With.
Measure of merit
The high strength heat resistant pbt-pp alloy measuring the high-efficiency environment friendly of above-described embodiment and comparative example preparation respectively is added to
To the clean-up effect with water quality in pond in culturing pool, and respectively cod clearance and heavy metal copper ion concentration are measured.
The test condition of described tensile strength (mpa) is 50mm/min, and the test condition of described bending strength (mpa) is
2mm/min, the test condition of described notch impact strength and shrinkage factor is carried out at being 23 DEG C, and the test condition of described glossiness is
60 ° of angles.
Test result is as shown in table 1.
Table 1
Can be seen that compared with comparative example 1-3 according to the data in table 1, the pbt/pp alloy of present invention preparation has height
The low characteristic of gloss, warpage.The mechanical property of material increased, and material remains low warpage properties, and lustrous surface also has
Improved, the glossiness of material significantly improves；The present invention provides the glossiness highest of material, and warpage is minimum.Obtained by the present invention
High glaze, low warp glass fiber strengthen high strength heat resistant pbt-pp alloy material can be widely applied to the industries such as automobile, household electrical appliances,
It is particularly well-suited to that there is the product that high gloss and low warpage require.
The present invention also provides a kind of preparation method of the high strength heat resistant pbt-pp alloy of above-mentioned high-efficiency environment friendly, and the method is adopted
With following steps: 1) weigh pbt75～90 weight portion, pp45～60 weight portion, glass fibre 30～45 weight portion, compatilizer 10
～15 weight portions, dibutyl phthalate 20～25 weight portion, benzylideneacetone 15～20 weight portion, lubricant 1.5～2 weight
Part, double thioether 8～15 weight portion, and each component is positioned in high-speed mixer, mix homogeneously at ambient temperature；(2) will
The mixture produced in step (1) is sent in double screw extruder, controls extrusion temperature to be 190-230 DEG C, screw speed is
200-500 rev/min, add glass fibre 30～45 weight portion in extruder the 4th humidity province, through melt blending extrusion, draw
Bar, obtains fiberglass reinforced pbt/pp alloy after water cooled, dry, pelletizing.
High strength heat resistant pbt-pp alloy using said method preparation disclosure satisfy that high thermostability, high mechanical property
Energy, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate are low and can have higher resistance to ag(e)ing, dimensionally stable
Property and the significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and angularity simultaneously, and
Its preparation process is simple, manufacturing cost is lower, and production efficiency is higher, disclosure satisfy that the demand of production in enormous quantities.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of high strength heat resistant pbt-pp alloy is it is characterised in that include the component of following weight portion: pbt75～90 weight
Part, pp45～60 weight portion, glass fibre 30～45 weight portion, compatilizer 10～15 weight portion, dibutyl phthalate 20
～25 weight portions, benzylideneacetone 15～20 weight portion, lubricant 1.5～2 weight portion, double thioether 8～15 weight portion.
2. high strength heat resistant pbt-pp alloy according to claim 1 it is characterised in that described pbt be 75 weight portions, institute
Stating pp is 45 weight portions, and described glass fibre is 30 weight portions, and described compatilizer is 10 weight portions, described phthalic acid two fourth
Ester is 20 weight portions, and described benzylideneacetone is 15 weight portions, and described lubricant is 1.5 weight portions, and described double thioether is 8 weight
Part.
3. high strength heat resistant pbt-pp alloy according to claim 1 is it is characterised in that described pbt intrinsic viscosity is
0.8-1.3dl/g.
4. high strength heat resistant pbt-pp alloy according to claim 1 it is characterised in that described compatilizer be eva and/
Or eva-g-mah.
5. the preparation method of the high strength heat resistant pbt-pp alloy described in a kind of any one according to Claims 1-4, its feature exists
In the method adopts following steps: (1) weighs pbt75～90 weight portion, pp45～60 weight portion, glass fibre 30～45 weight
Amount part, compatilizer 10～15 weight portion, dibutyl phthalate 20～25 weight portion, benzylideneacetone 15～20 weight portion, profit
Lubrication prescription 1.5～2 weight portion, double thioether 8～15 weight portion, and each component is positioned in high-speed mixer, at ambient temperature
Mix homogeneously；(2) mixture produced in step (1) is sent in double screw extruder, control extrusion temperature is 190-230
DEG C, screw speed is 200-500 rev/min, adds glass fibre 30～45 weight portion in extruder the 4th humidity province, through superfusion
Melt blending extrusion, tie rod, after water cooled, dry, pelletizing, obtain fiberglass reinforced pbt/pp alloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716795.5A CN106336625A (en) | 2016-08-24 | 2016-08-24 | High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716795.5A CN106336625A (en) | 2016-08-24 | 2016-08-24 | High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof |
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| CN106336625A true CN106336625A (en) | 2017-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395194A (en) * | 2021-12-28 | 2022-04-26 | 日丰企业集团有限公司 | PP-R/PBT alloy material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592722A (en) * | 2015-02-03 | 2015-05-06 | 上海日之升新技术发展有限公司 | High-luster low-warpage glass fiber reinforced PBT/PP (Polybutylene Terephthalate/Polypropylene) alloy and preparation method thereof |
| CN104817831A (en) * | 2015-05-21 | 2015-08-05 | 国网智能电网研究院 | Electric-insulation thermoplastic resin composition and preparation method thereof |
-
2016
- 2016-08-24 CN CN201610716795.5A patent/CN106336625A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592722A (en) * | 2015-02-03 | 2015-05-06 | 上海日之升新技术发展有限公司 | High-luster low-warpage glass fiber reinforced PBT/PP (Polybutylene Terephthalate/Polypropylene) alloy and preparation method thereof |
| CN104817831A (en) * | 2015-05-21 | 2015-08-05 | 国网智能电网研究院 | Electric-insulation thermoplastic resin composition and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395194A (en) * | 2021-12-28 | 2022-04-26 | 日丰企业集团有限公司 | PP-R/PBT alloy material and preparation method and application thereof |
| CN114395194B (en) * | 2021-12-28 | 2023-09-12 | 日丰企业集团有限公司 | PP-R/PBT alloy material and preparation method and application thereof |
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