CN107353492A - A kind of low-shrinkage polypropylene material and preparation method thereof - Google Patents
A kind of low-shrinkage polypropylene material and preparation method thereof Download PDFInfo
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- CN107353492A CN107353492A CN201610312493.1A CN201610312493A CN107353492A CN 107353492 A CN107353492 A CN 107353492A CN 201610312493 A CN201610312493 A CN 201610312493A CN 107353492 A CN107353492 A CN 107353492A
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- polypropylene material
- shrinkage
- lubricant
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- C—CHEMISTRY; METALLURGY
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
It is with Sc the invention discloses a kind of low-shrinkage polypropylene material and preparation method thereof2W3O123 15 parts, 0 20 parts of talcum powder, 0 15 parts of POE, 50 97 parts of polypropylene, 0.1 0.3 parts of heat stabilizer and lubricant 0.1 0.3,0.1 0.5 parts of coupling agent be blended, extrusion forms.The present invention passes through melt-blending process Sc2W3O12Material carrys out modified polypropylene material, and so as to be effectively reduced the shrinkage factor of polypropylene material, obtained low-shrinkage PP requires higher application scenario in automobile, electronic apparatus etc. to product size.
Description
Technical field
The present invention relates to polypropylene technology field, and in particular to a kind of low-shrinkage polypropylene material and its preparation side
Method.
Background technology
Polypropylene material turns into current due to the advantages that its density is low, good mechanical performance, high chemical stability
One of quite varied general-purpose plastics is applied to obtain, but because polypropylene is high crystalline polymeric material, is being made
There is the shortcomings that big shrinkage factor and after-contraction during injection, storage and the use of product.Therefore in order to reduce poly- third
The shrinkage factor of alkene material, improving the dimensional stability of product turns into the precise parts such as current automobile, electronics to material
It is most important to require a little.
Sc2W3O12Material has the temperature range at -263 DEG C~1027 DEG C due to its special structure, the material
Inside there is special negative expansion performance, average coefficient of expansion is -7.17 × 10-6K-1, will by melt-blending process
Sc2W3O12Material add polypropylene in, low-shrinkage polypropylene material can be made, to product size requirement compared with
It is widely used on high part.
The content of the invention
It is an object of the invention to provide a kind of low-shrinkage polypropylene material and preparation method thereof.
A kind of low-shrinkage polypropylene material, is prepared in parts by weight by following components：
The Sc2W3O12, talcum powder, POE, polypropylene parts by weight sum be 100 parts.
Further scheme, the Sc2W3O12For oblique square phase crystal formation material.
The polyacrylic melt flow rate (MFR) is 0.1-100g/min under the conditions of 2.16kg/230 DEG C.
The heat stabilizer is phenolic thermostabilizers, amine heat stabilizer, in phosphite ester type thermal stabilizing agent extremely
Few one kind.
The lubricant is in metal soap lubricant, the compound ester lubricant of stearic acid and acid amides series lubricant agent
It is at least one.
The coupling agent is one kind in micro- silane coupler or titanate coupling agent.
Another goal of the invention of the present invention is to provide the preparation method of above-mentioned low-shrinkage polypropylene material, by with
Than by polypropylene, Sc2W3O12, talcum powder, POE, heat stabilizer, lubricant and coupling agent add screw rod and squeeze
Go out in machine, carry out melt blending, Sc is made in extruding pelletization2W3O12Modified low-shrinkage polypropylene material；Institute
The draw ratio for stating screw extruder is 35-56:1, processing temperature is 170-250 DEG C.
The present invention's has the following advantages that compared with prior art：
1. the present invention uses Sc2W3O12Modified polypropylene material, the shrinkage factor of polypropylene material is significantly reduced,
And the dimensional stability of polypropylene material material products is improved, so as to be obtained widely in automobile, field of electronics
Using；
2. use Sc2W3O12And the shrinkage factor of polypropylene material is reduced by fusion method, method is simple and easy, tool
There is actual application prospect.
Embodiment
Heat stabilizer is from phenolic thermostabilizers 1010, phosphite ester type thermal stabilizing agent 168 in example below
Or amine heat stabilizer DSTDP.
Lubricant is from calcium stearate, zinc stearate, glycol stearate, ethylene bis stearamide (EBS)
Or erucyl amide.
Coupling agent selects silane resin acceptor kh-550 or titanate coupling agent AC-201.
Embodiment 1
By 3kg Sc2W3O12, 97kg polypropylene, 0.2kg phenolic thermostabilizers 1010,0.2kg Lubricate EBSs
It is 40 in draw ratio with 0.3kg silane resin acceptor kh-550s:Melting mixing point in 1 double screw extruder
Dissipate, after all raw material blending extrusions are granulated, produce low-shrinkage polypropylene material.Processing temperature during preparation is
220℃。
Embodiment 2
By 15kg Sc2W3O12, 20kg talcum powder, 15kg POE, 50kg polypropylene, 0.1kg lubricants are hard
Resin acid zinc, 0.1kg lubricant stearic acid calciums, 0.1kg phenolic thermostabilizers 1010,0.15kg phosphite esters
Type thermal stabilizing agent 168 and 0.2kg are 56 in draw ratio:Melting mixing is disperseed in 1 double screw extruder, institute
After having the granulation of raw material blending extrusion, low-shrinkage polypropylene material is produced.Processing temperature during preparation is 250 DEG C.
Embodiment 3
By 10kg Sc2W3O12, 10kg talcum powder, 5kg POE, 75kg polypropylene, 0.3kg amine thermostabilizations
Agent DSTDP and 0.3kg Lubricate EBS and 0.1kg titanate coupling agents AC-201 are 35 in draw ratio:1
Double screw extruder in melting mixing disperse, after all raw material blending extrusions are granulated, produce low-shrinkage poly- third
Alkene material.Processing temperature during preparation is 190 DEG C.
Embodiment 4
8kg Sc2W3O12, 5kg talcum powder, 87kg polypropylene, 0.1kg phenolic thermostabilizers 168,0.1kg
Amine heat stabilizer DSTDP, 0.15kg lubricant stearic acid glycol ester and 0.2kg Silane coupling agent KH550s,
0.3KG titanate coupling agents AC-201 is 40 in draw ratio:Melted in the double screw extruder of 1 550 sums mixed
Close and disperse, after all raw material blending extrusions are granulated, produce low-shrinkage polypropylene material.Processing temperature during preparation
Spend for 250 DEG C.
Embodiment 5
By 12kg Sc2W3O12, 3kg POE, 85kg polypropylene, 0.1kg phenolic thermostabilizers 1010,0.1kg
Lubricant erucyl amide is 40 in draw ratio:Melting mixing is disperseed in 1 double screw extruder, and all raw materials are total to
After mixed extruding pelletization, low-shrinkage polypropylene material is produced.Processing temperature during preparation is 179 DEG C.
Comparative example 1
By 20kg talcum powder, 80kg polypropylene, 0.2kg phenolic thermostabilizers 1010,0.2kg Lubricate EBSs
It is 40 in draw ratio with 0.4kg Silane coupling agent KH550s:Melting mixing is disperseed in 1 double screw extruder,
After all raw material blending extrusions are granulated.Processing temperature during preparation is 190 DEG C.
Comparative example 2
By 15kg talcum powder, 5kgPOE, 80kg polypropylene, 0.1kg lubricant stearic acids zinc, 0.1kg profits
Lubrication prescription calcium stearate, 0.25kg phenolic thermostabilizers 1010 are 56 in draw ratio:1 double screw extruder
Middle melting mixing is disperseed, and all raw material blending extrusions are granulated.Processing temperature during preparation is 200 DEG C.
Standard batten is made in material prepared by above-described embodiment 1-5 and comparative example 1,2, according to ISO294
Testing standard tests their shrinkage factor, test result such as following table respectively：
Table 1：Modified polypropene mechanical property compares
As can be seen from Table 1, it is aobvious less than comparative example 1,2 and pure during the shrinkage factor of the obtained polypropylene material of the present invention
The shrinkage factor of polypropylene material.
The above-mentioned description to embodiment is understood that and applied for ease of those skilled in the art
The present invention.Person skilled in the art obviously can easily make various modifications to these embodiments, and
General Principle described herein is applied in other embodiment without by performing creative labour.Therefore, originally
Invention is not limited to embodiment here, and those skilled in the art do not depart from model of the present invention according to the announcement of the present invention
The improvement and modification that farmland is made all should be within protection scope of the present invention.
Claims (7)
- A kind of 1. low-shrinkage polypropylene material, it is characterised in that：It is prepared by weight by following components：Sc2W3O12 3-15 parts,Talcum powder 0-20 partsPOE 0-15 partsPolypropylene 50-97 partsHeat stabilizer 0.1-0.3 partsLubricant 0.1-0.3 partsCoupling agent 0.1-0.5 parts,The Sc2W3O12, talcum powder, POE, polypropylene parts by weight sum be 100 parts.
- A kind of 2. low-shrinkage polypropylene material according to claim 1, it is characterised in that：The Sc2W3O12For oblique square phase crystal formation material.
- A kind of 3. low-shrinkage polypropylene material according to claim 1, it is characterised in that：The polyacrylic melt flow rate (MFR) is 0.1-100g/min under the conditions of 2.16kg/230 DEG C.
- A kind of 4. low-shrinkage polypropylene material according to claim 1, it is characterised in that：The heat stabilizer is at least one of phenolic thermostabilizers, amine heat stabilizer, phosphite ester type thermal stabilizing agent.
- A kind of 5. low-shrinkage polypropylene material according to claim 1, it is characterised in that：The lubricant is at least one of metal soap lubricant, the compound ester lubricant of stearic acid and acid amides series lubricant agent.
- 6. low-shrinkage polypropylene material according to claim 1, it is characterised in that：The coupling agent is one kind in micro- silane coupler or titanate coupling agent.
- 7. the preparation method of the low-shrinkage polypropylene material as described in claim any one of 1-6, it is characterised in that：By proportioning, by polypropylene, Sc2W3O12, talcum powder, POE, heat stabilizer, lubricant and coupling agent add in screw extruder, Sc is made through melt blending, extruding pelletization2W3O12Modified low-shrinkage polypropylene material；The draw ratio of the screw extruder is 35-56:1, processing temperature is 170-250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312493.1A CN107353492A (en) | 2016-05-10 | 2016-05-10 | A kind of low-shrinkage polypropylene material and preparation method thereof |
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| CN201610312493.1A CN107353492A (en) | 2016-05-10 | 2016-05-10 | A kind of low-shrinkage polypropylene material and preparation method thereof |
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| CN107353492A true CN107353492A (en) | 2017-11-17 |
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| CN201610312493.1A Pending CN107353492A (en) | 2016-05-10 | 2016-05-10 | A kind of low-shrinkage polypropylene material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586933A (en) * | 2018-05-11 | 2018-09-28 | 苏州润佳工程塑料股份有限公司 | A kind of low-shrinkage polypropylene composite and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200304462A (en) * | 2002-03-29 | 2003-10-01 | Trw Inc | Materials and method for improving dimensional stability of precision electronic optical photonic and spacecraft components and structures |
| CN105367904A (en) * | 2015-12-16 | 2016-03-02 | 青岛立博汽车零部件精密铸造有限公司 | Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof |
-
2016
- 2016-05-10 CN CN201610312493.1A patent/CN107353492A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200304462A (en) * | 2002-03-29 | 2003-10-01 | Trw Inc | Materials and method for improving dimensional stability of precision electronic optical photonic and spacecraft components and structures |
| CN105367904A (en) * | 2015-12-16 | 2016-03-02 | 青岛立博汽车零部件精密铸造有限公司 | Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 局相文等: "氧化石墨烯在水热法制备Sc2W3O12 粉体中的应用", 《无机材料学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586933A (en) * | 2018-05-11 | 2018-09-28 | 苏州润佳工程塑料股份有限公司 | A kind of low-shrinkage polypropylene composite and preparation method thereof |
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Application publication date: 20171117 |