CN108559164A - A kind of high-content calcium silicates filled polyethylene master batch and preparation method thereof - Google Patents
A kind of high-content calcium silicates filled polyethylene master batch and preparation method thereof Download PDFInfo
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- CN108559164A CN108559164A CN201810506380.4A CN201810506380A CN108559164A CN 108559164 A CN108559164 A CN 108559164A CN 201810506380 A CN201810506380 A CN 201810506380A CN 108559164 A CN108559164 A CN 108559164A
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- China
- Prior art keywords
- calcium silicates
- master batch
- coupling agent
- epoxy resin
- powder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Abstract
The invention discloses a kind of high-content calcium silicates filled polyethylene master batches, it is characterised in that：Score weighs carrier by weight：19~25 parts of low density polyethylene (LDPE), coupling agent：0.3~0.7 part, epoxy resin：0.2~0.8 part, filler material：Calcium silicate powder amount of filling is the 75~80% of carrier and additive gross weight.Carry out activated silicic acid calcium powder body using silane coupling agent, inhibits loss of the silane coupling agent of low molecular weight in high temperature working processes by the way that epoxy resin protective agent is added, eliminate or reduce to the greatest extent the generation of bubble, ensure the performance of product；The addition of another aspect epoxy resin also can further improve the deployment conditions of powder in the base, and the interface interaction between powder and matrix is improved while increasing calcium silicates filling content, improves mechanical property.
Description
Technical field
The present invention relates to the preparation methods of filler parent granule more particularly to a kind of high-content calcium silicates to fill low density polyethylene (LDPE)
The preparation method of master batch.
Background technology
For polyethylene as most widely used one of general-purpose plastics, the production of plastic products is fast-developing all over the world,
Application field is also being growing, and polyethylene plastic products can be seen everywhere from daily life product to work enterprise product.For
Improve and improve the performance of its plastic products, it is general using addition filler parent granule come the method being modified, concrete operations are by powder
Body, which is added in base polyethylene, is made master batch, is then diluted in product again, and changing functionally not only may be implemented in the method
Property, while material cost can be greatly reduced, always show one's talent in increasingly fierce market competition.In the prior art
In order to improve the dispersibility of related powder in the base, it usually needs powder is carried out activation process, generally with coupling agent to powder
Body is surface-treated, and the presence of coupling agent can improve the dispersion situation of powder in the base to a certain extent, however to
The powder of high-content is filled, the peptizaiton of coupling agent has some limitations, while coupling agent is as low molecular weight substance,
It is easy loss in the high temperature working processes in later stage, forms micropore even hole to generate bubble on product, this will
Larger negative effect is caused to the performance of product.
Invention content
The technical problem to be solved by the present invention is to：It solves the easily loss of low molecular weight coupling agent and improvement dispersibility has limitation
The problem of property, provide a kind of preparation method of high filled polyethylene master batch.
The technical scheme is that：A kind of high-content calcium silicates filled polyethylene master batch, by weight score weigh carrier：
19~25 parts of low density polyethylene (LDPE), coupling agent：0.3~0.7 part, epoxy resin：0.2~0.8 part, filler material：Calcium silicate powder
Amount of filling is the 75~80% of carrier and additive gross weight.
The coupling agent is that silane coupling agent is gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl front three
One kind in oxysilane and γ-(methacryloxypropyl) propyl trimethoxy silicane.
The epoxy resin is bisphenol A type epoxy resin.
The calcium silicate powder grain size is 20~30 μm.
A kind of preparation method of high-content calcium silicates filled polyethylene master batch, comprises the steps of：(1) each original is pressed
The weight fraction of material weighs each raw material for standby；(2) silane coupling agent is added in calcium silicate powder, in 60 DEG C -80 DEG C of height
Disperse in fast dispersion machine, epoxy resin be then added, continue to mix, then by the calcium silicate powder mixed be placed in 100 DEG C-
In 110 DEG C of baking ovens, the calcium silicate powder that is activated after drying；(3) calcium silicate powder and low-density that will be obtained in step (2)
Polyethylene is fed into conical double screw extruder together, and conical double screw extruder to temperature is controlled at 160~180 DEG C, is turned
Speed is 350~450r/min, it is last it is extruded, air-cooled, the calcium silicates filling low density polyethylene (LDPE) master batch is obtained after pelletizing.
Beneficial effects of the present invention：Carry out activated silicic acid calcium powder body using silane coupling agent, by the way that epoxy resin protection is added
Agent inhibits loss of the silane coupling agent of low molecular weight in high temperature working processes, eliminates or reduce to the greatest extent the production of bubble
It is raw, ensure the performance of product；The addition of another aspect epoxy resin also can further improve the dispersion feelings of powder in the base
Condition improves the interface interaction between powder and matrix, improves mechanical property while increasing calcium silicates filling content.
In addition, being squeezed by using conical double-screw, shearing force is reduced, the content to increase calcium silicates provides necessary technology
It supports, simultaneously as generation heat is smaller during conical double-screw squeezes, it is therefore prevented that the volatilization of master batch and basis material.It is parallel
Twin-screw extrusion is since shear force is larger, when high-content calcium silicates fills low density polyethylene (LDPE), is susceptible to screw rod damage
It is bad to fall flat.
In the preparation method of high-content calcium silicates filling low density polyethylene (LDPE) of the present invention, had using conical double screw extruder
It has the following advantages：Mixing is uniform, material is not easily decomposed, stable quality, production capacity are high.
Specific implementation mode
In conjunction with embodiment, the present invention is described in further detail.Only illustrate the present invention by way of example, the present invention
Protection domain is without being limited thereto.
Embodiment 1
(1) score weighs carrier by weight：24 powder of low density polyethylene (LDPE), coupling agent：Gamma-aminopropyl-triethoxy-silane
0.6 part, epoxy resin：0.4 part, filler material：Calcium silicates additive is the 75% of carrier and additive gross weight；
(2) coupling agent weighed is added in calcium silicate powder, 2h is disperseed in 60 DEG C of high speed dispersor, then
Epoxy resin is added, continues to mix 1h, then the calcium silicate powder mixed is placed in 100 DEG C of baking ovens, is lived after drying
The calcium silicate powder of change；
(3) calcium silicate powder of activation and low density polyethylene (LDPE) are fed into conical double screw extruder together, taper
Double screw extruder is controlled to temperature at 160~180 DEG C, rotating speed 400r/min, is obtained after last extruded, air-cooled, pelletizing
The calcium silicates fills low density polyethylene (LDPE) master batch.
Example 2
(1) score weighs carrier by weight：19 powder of low density polyethylene (LDPE), coupling agent：Gamma-aminopropyl-triethoxy-silane
0.5 part, epoxy resin：0.5 part, filler material：Calcium silicates additive is the 80% of carrier and additive gross weight；
(2) coupling agent weighed is added in calcium silicate powder, 2h is disperseed in 60 DEG C of high speed dispersor, then
Epoxy resin is added, continues to mix 1h, then the calcium silicate powder mixed is placed in 100 DEG C of baking ovens, is lived after drying
The calcium silicate powder of change；
(3) calcium silicate powder of activation and low density polyethylene (LDPE) are fed into conical double screw extruder together, taper
Double screw extruder is controlled to temperature at 160~180 DEG C, rotating speed 350r/min, is obtained after last extruded, air-cooled, pelletizing
The calcium silicates fills low density polyethylene (LDPE) master batch.
Example 3
Comparative example 2 removes 2 epoxy resin of embodiment, and the content of carrier low density polyethylene (LDPE) becomes 19.5 parts,
Remaining condition obtains high filled polyethylene master batch with embodiment 2.
Embodiment 4
Comparative example 2 changes the calcium silicate powder in embodiment 2 without coupling agent modified calcium silicate powder into,
Remaining condition obtains high filled polyethylene master batch with embodiment 2.
Performance test
High filling low density polyethylene (LDPE) master batch obtained in the various embodiments described above is added to low-density polyethylene body tree
In fat, through plastic-injection moulding machine injection molding, each sample and pure sample are tested, test result is as follows table：
| Test sample | Tensile strength MPa | Elongation at break % |
| Pure sample | 15.213 | 697.7971 |
| Unmodified calcium silicate master batch 7% is added | 13.2899 | 702.5613 |
| Epoxy resin master batch 7% is not added | 15.7676 | 825.9301 |
| Master batch 7% of the present invention | 17.1225 | 1000.5853 |
Claims (5)
1. a kind of high-content calcium silicates filled polyethylene master batch, it is characterised in that：Score weighs carrier by weight：Low density polyethylene
19~25 parts of alkene, coupling agent：0.3~0.7 part, epoxy resin：0.2~0.8 part, filler material：Calcium silicate powder amount of filling is to carry
The 75~80% of body and additive gross weight.
2. a kind of high-content calcium silicates filled polyethylene master batch according to claim 1, it is characterised in that：The coupling agent
It is gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane and γ-(methyl for silane coupling agent
Acryloyl-oxy) one kind in propyl trimethoxy silicane.
3. a kind of high-content calcium silicates filled polyethylene master batch according to claim 1, it is characterised in that：The asphalt mixtures modified by epoxy resin
Fat is bis-phenol Α type epoxy resin.
4. a kind of high-content calcium silicates filled polyethylene master batch according to claim 1, it is characterised in that：The calcium silicates
Diameter of particle is 20~30 μm.
5. a kind of preparation method of high-content calcium silicates filled polyethylene master batch as described in one of claim 1-4, feature
It is：(1) each raw material for standby is weighed by the weight fraction of each raw material；(2) silane coupling agent is added in calcium silicate powder,
Disperse in 60 DEG C~80 DEG C of high speed dispersor, epoxy resin is then added, continues to mix, the calcium silicate powder that then will be mixed
Body is placed in 100 DEG C of -110 DEG C of baking ovens, the calcium silicate powder activated after drying；(3) calcium silicates that will be obtained in step (2)
Powder and low density polyethylene (LDPE) are fed into conical double screw extruder together, and conical double screw extruder to temperature controls
160~180 DEG C, rotating speed is 350~450r/min, it is last it is extruded, air-cooled, that the calcium silicates filling is obtained after pelletizing is low close
Spend polyethylene master batch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506380.4A CN108559164A (en) | 2018-05-24 | 2018-05-24 | A kind of high-content calcium silicates filled polyethylene master batch and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506380.4A CN108559164A (en) | 2018-05-24 | 2018-05-24 | A kind of high-content calcium silicates filled polyethylene master batch and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1502652A (en) * | 2002-11-21 | 2004-06-09 | 龙德行国际投资有限公司 | Reinforcing toughening material of polyolefine/inorganic powder compound material and use thereof |
| CN104403198A (en) * | 2014-11-30 | 2015-03-11 | 湖南科技大学 | Preparation method for calcium silicate/polyolefin composite material |
| KR101607153B1 (en) * | 2015-12-01 | 2016-03-29 | 주식회사 국제화학산업 | Resin composition for industry protective film using UV master batch and Manufacturing protective film using the same |
-
2018
- 2018-05-24 CN CN201810506380.4A patent/CN108559164A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1502652A (en) * | 2002-11-21 | 2004-06-09 | 龙德行国际投资有限公司 | Reinforcing toughening material of polyolefine/inorganic powder compound material and use thereof |
| CN104403198A (en) * | 2014-11-30 | 2015-03-11 | 湖南科技大学 | Preparation method for calcium silicate/polyolefin composite material |
| KR101607153B1 (en) * | 2015-12-01 | 2016-03-29 | 주식회사 국제화학산업 | Resin composition for industry protective film using UV master batch and Manufacturing protective film using the same |
Non-Patent Citations (1)
| Title |
|---|
| 张权笠等: "硅酸钙粉体表面改性及其对聚丙烯填充性能影响研究", 《无机盐工业》 * |
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Application publication date: 20180921 |
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