CN108912592A - A kind of polyformaldehyde composite material and preparation method thereof - Google Patents
A kind of polyformaldehyde composite material and preparation method thereof Download PDFInfo
- Publication number
- CN108912592A CN108912592A CN201810877619.9A CN201810877619A CN108912592A CN 108912592 A CN108912592 A CN 108912592A CN 201810877619 A CN201810877619 A CN 201810877619A CN 108912592 A CN108912592 A CN 108912592A
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- Prior art keywords
- polyformaldehyde
- composite material
- toner
- antioxidant
- polyformaldehyde composite
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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
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
- C08L59/04—Copolyoxymethylenes
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0831—Gold
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
Abstract
The invention discloses a kind of polyformaldehyde composite materials and preparation method thereof.Polyformaldehyde composite material includes following component by weight：80-97 parts of polyformaldehyde；1-20 parts of toughener；0.3-0.8 parts of antioxidant；0.2-1 parts of lubricant；0.2-0.4 parts of light stabilizer；1-3 parts of toner；Polyformaldehyde is kematal, and melt flow rate (MFR) of polyformaldehyde under the conditions of 190 DEG C/2.16kg is 1-30g/10min.The problems such as polyformaldehyde composite material mechanical property of the disclosure is good, scraping and wiping resistance performance with higher, and good fluidity, and moulding processability is good, can significantly improve the current mark generated in injection moulding process, weld bond.
Description
Technical field
The present invention relates to sprayed on material field is exempted from, more particularly, to a kind of polyformaldehyde composite material and preparation method thereof.
Background technique
Exempt from sprayed on material as it is a kind of for incrustation, can directly injection molding material, require no spray painting
Etc. subsequent processings process, become environment-friendly materials quite welcomed by the people in recent years, obtained in the numerous areas such as household electrical appliances and automobile
Very extensive application.
Common exempts from sprayed on material usually with PP (polypropylene), ABS (acrylonitrile-butadiene-styrene copolymer), PC
Based on the materials such as (polycarbonate), PMMA (polymethyl methacrylate), be aided with corresponding pigment by twin-screw extrusion and
At.These exempt from sprayed on material more or less existing various problems, and the material melt viscosity such as PC, PMMA base is higher, is being molded
When molding, pigment is also easy to produce bonding wire, current mark etc. in dispersion process, forms open defect；The strength of materials of PP base is lower, system
The product obtained is difficult to apply the use for limiting in stressed member and exempting from sprayed on material.
Therefore, how to provide that a kind of mechanical property is good, fluidity of molten is good exempts from sprayed on material, become this field and need to solve
Technical problem certainly.
Summary of the invention
The polyformaldehyde composite material that it is an object of the present invention to provide a kind of mechanical properties is good, fluidity of molten is good it is new
Technical solution.
According to the first aspect of the invention, a kind of polyformaldehyde composite material is provided.
The polyformaldehyde composite material includes following component by weight：
The polyformaldehyde is kematal, and melt flow rate (MFR) of polyformaldehyde under the conditions of 190 DEG C/2.16kg
For 1-30g/10min.
Optionally, the toughener be thermoplastic polyurethane, Methyl Methacrylate-Butadiene-Styrene Copolymer and
At least one of nitrile rubber.
Optionally, the antioxidant is Hinered phenols antioxidant, thioester antioxidant and the hot antioxidant of phosphorous acid esters
At least one of.
Optionally, the Hinered phenols antioxidant is 1,3,5- (3,5- di-tert-butyl-4-hydroxyl benzyl) isonitrile uric acid, institute
Stating thioester antioxidant is thio-2 acid 2 stearyl ester, and the phosphite ester antioxidant is phosphorous acid three (2,4- bis-
Tert-butyl-phenyl) ester.
Optionally, the lubricant be metal soap lubricant, alkene wax lubricant and amide waxe series lubricant agent at least
It is a kind of.
Optionally, the light stabilizer is hindered amine light stabilizer.
Optionally, the toner is at least one in aluminium powder, copper powder, bronze and the mica powder handled by organic coating
Kind.
Second method according to the present invention provides a kind of preparation method of polyformaldehyde composite material of the invention.
The preparation method of the polyformaldehyde composite material includes the following steps：
(1) raw material are weighed in proportion；
(2) polyformaldehyde, toughener, antioxidant and lubricant are sequentially placed into mixing machine and are stirred evenly, obtain mixture；
(3) mixture obtained in the step (2) is sent into double screw extruder through main spout, toner and light are stablized
Agent is sent into double screw extruder through side spout, compound using polyformaldehyde is obtained after melting, extrusion, water cooling, air-dried, pelletizing
Material.
Optionally, the preparation method of the toner in the step (3) is as follows：
(1) it after washing at least one of aluminium powder, copper powder, bronze and mica powder with dehydrated alcohol, filters and room temperature dries
It is dry, obtain forerunner's toner；
(2) a certain amount of acrylate, forerunner's toner, potassium peroxydisulfate, iron chloride and neopelex are weighed, it will
Forerunner's toner, potassium peroxydisulfate and neopelex are successively put into reaction kettle, and acrylate is added after being sufficiently stirred,
60-80 DEG C at a temperature of react 8-12h, then add iron chloride and stir evenly, filtration washing both toner.
Optionally, acrylate, forerunner's toner, potassium peroxydisulfate, iron chloride and the detergent alkylate sulphur in the step (2)
The mass ratio of sour sodium is (10-20):(30-60):(0.3-0.5):(2-4):(0.2-0.4).
The polyformaldehyde composite material mechanical property of the disclosure is good, scraping and wiping resistance performance with higher, and good fluidity, at
Type excellent processing performance, the problems such as can significantly improving the current mark generated in injection moulding process, weld bond.
In addition, may make the appearance of polyformaldehyde composite material that imitative metal appearance is presented by the addition of suitable toner
Effect.
Specific embodiment
It will be described in various exemplary embodiments of the invention now.It should be noted that：Unless specifically stated otherwise, otherwise
The component and the positioned opposite of step, numerical expression and numerical value illustrated in these embodiments does not limit the scope of the invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
The polyformaldehyde composite material of the disclosure includes following component by weight：
80-97 parts of polyformaldehyde.Polyformaldehyde is kematal, and melt of polyformaldehyde under the conditions of 190 DEG C/2.16kg
Flow rate is 1-30g/10min.This polyformaldehyde mobile performance is good, is conducive to the machinability for improving polyformaldehyde composite material
Energy；Crystal property is good, is conducive to the scraping and wiping resistance performance for improving polyformaldehyde composite material.
1-20 parts of toughener.Toughener can be thermoplastic polyurethane (TPU), methyl methacrylate-butadiene-benzene second
At least one of alkene copolymer and nitrile rubber.
0.3-0.8 parts of antioxidant.Antioxidant can be Hinered phenols antioxidant, thioester antioxidant and phosphorous acid esters
At least one of hot antioxidant.Further, Hinered phenols antioxidant 1,3,5- (3,5- di-tert-butyl-4-hydroxyl benzyls)
Isonitrile uric acid (antioxidant 3114), thioester antioxidant are thio-2 acid 2 stearyl ester (antioxidant DSTP), phosphorous acid
Esters antioxidant is phosphorous acid three (2,4- di-tert-butyl-phenyl) ester (irgasfos 168).
0.2-1 parts of lubricant.Lubricant is in metal soap lubricant, alkene wax lubricant and amide waxe series lubricant agent
It is at least one.Further, metal soap lubricant may be, for example, zinc stearate, calcium stearate etc.；Alkene wax lubricant can example
For example polyethylene wax, EVA wax etc.；Amide waxe series lubricant agent may be, for example, erucyl amide, N, N a pair of ethylene hard fatty acids amide
Deng.
0.2-0.4 parts of light stabilizer.Light stabilizer can be hindered amine light stabilizer.
1-3 parts of toner.Toner can in the aluminium powder, copper powder, bronze and the mica powder that handle by organic coating at least
It is a kind of.
When it is implemented, toner can be prepared as follows：
(1) it after washing at least one of aluminium powder, copper powder, bronze and mica powder with dehydrated alcohol, filters and room temperature dries
It is dry, obtain forerunner's toner.
(2) a certain amount of acrylate, forerunner's toner, potassium peroxydisulfate, iron chloride and neopelex are weighed, it will
Forerunner's toner, potassium peroxydisulfate and neopelex are successively put into reaction kettle, and acrylate is added after being sufficiently stirred,
60-80 DEG C at a temperature of react 8-12h, then add iron chloride and stir evenly, filtration washing both toner.Acrylic acid
Ester, forerunner's toner, potassium peroxydisulfate, iron chloride and neopelex mass ratio can be (10-20):(30-60):
(0.3-0.5):(2-4):(0.2-0.4)。
Experimental method used in following embodiments is conventional method unless otherwise specified, used material and
Reagent is commercially available unless otherwise specified, and equipment used in experiment is this field unless otherwise specified
Equipment known to technical staff.
Polyformaldehyde composite material is prepared as follows：
(1) raw material are weighed in proportion；
(2) polyformaldehyde, toughener, antioxidant and lubricant are sequentially placed into mixing machine and are stirred evenly, obtain mixture；
(3) mixture obtained in the step (2) is sent into double screw extruder through main spout, toner and light are stablized
Agent is sent into double screw extruder through side spout, compound using polyformaldehyde is obtained after melting, extrusion, water cooling, air-dried, pelletizing
Material.
Embodiment 1
Parts by weight of raw materials is as follows：
Embodiment 2
Parts by weight of raw materials is as follows：
Embodiment 3
Parts by weight of raw materials is as follows：
Comparative example 1
Comparative example 2
Comparative example 3
Comparative example 4
The composite material that above-described embodiment 1-3 and comparative example 1-4 are obtained is molded into 350*100* according to unified technique
The template of 3.2mm assesses the relevant parameter and effect of template.
Table 1
Ocular estimate is evaluated by 1~5 grade, indicates that plus sige is more with the different plus sige of quantity respectively, indicates corresponding
Problem is more serious or metal effect is better.Low temperature impact properties press 180 standard of ISO, and the Chalpy impact tested at its 23 DEG C is strong
Degree.Cross is scraped to be carried out by respective standard, tests its △ L, and the value is lower, indicates that scratch resistance is stronger.
As can be seen from the above table, polyformaldehyde composite material of the invention is in impact strength, metal effect, current mark and weld bond
Etc. there is the effect being in admirable proportion, current mark and weld bond to improve significantly relative to the sprayed on material of exempting from of traditional ground,
The effect of metal appearance, which also has, greatly to be promoted.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of polyformaldehyde composite material, which is characterized in that by weight include following component：
The polyformaldehyde is kematal, and melt flow rate (MFR) of polyformaldehyde under the conditions of 190 DEG C/2.16kg is 1-
30g/10min。
2. polyformaldehyde composite material according to claim 1, which is characterized in that the toughener be thermoplastic polyurethane,
At least one of Methyl Methacrylate-Butadiene-Styrene Copolymer and nitrile rubber.
3. polyformaldehyde composite material according to claim 1, which is characterized in that the antioxidant is Hinered phenols antioxygen
At least one of agent, thioester antioxidant and the hot antioxidant of phosphorous acid esters.
4. polyformaldehyde composite material according to claim 3, which is characterized in that the Hinered phenols antioxidant is 1,3,5-
(3,5- di-tert-butyl-4-hydroxyl benzyl) isonitrile uric acid, the thioester antioxidant are thio-2 acid 2 stearyl ester, institute
Stating phosphite ester antioxidant is phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
5. polyformaldehyde composite material according to claim 1, which is characterized in that the lubricant is metal soap lubrication
At least one of agent, alkene wax lubricant and amide waxe series lubricant agent.
6. polyformaldehyde composite material according to claim 1, which is characterized in that the light stabilizer is that hindered amines light is steady
Determine agent.
7. polyformaldehyde composite material according to claim 1, which is characterized in that the toner is to handle by organic coating
At least one of aluminium powder, copper powder, bronze and mica powder.
8. a kind of preparation method of polyformaldehyde composite material described in any one of claim 1 to 7, which is characterized in that including
Following steps：
(1) raw material are weighed in proportion；
(2) polyformaldehyde, toughener, antioxidant and lubricant are sequentially placed into mixing machine and are stirred evenly, obtain mixture；
(3) mixture obtained in the step (2) is sent into double screw extruder, toner and light stabilizer warp through main spout
Side spout is sent into double screw extruder, using melting, extrusion, water cooling, air-dries, obtains polyformaldehyde composite wood after pelletizing
Material.
9. the preparation method of polyformaldehyde composite material according to claim 8, which is characterized in that in the step (3)
The preparation method of toner is as follows：
(1) it after washing at least one of aluminium powder, copper powder, bronze and mica powder with dehydrated alcohol, filters and room temperature is dried, obtain
To forerunner's toner；
(2) a certain amount of acrylate, forerunner's toner, potassium peroxydisulfate, iron chloride and neopelex are weighed, by forerunner
Toner, potassium peroxydisulfate and neopelex are successively put into reaction kettle, and acrylate is added after being sufficiently stirred,
8-12h is reacted at a temperature of 60-80 DEG C, iron chloride is then added and stirs evenly, and filtration washing both obtains toner.
10. the preparation method of polyformaldehyde composite material according to claim 9, which is characterized in that in the step (2)
Acrylate, forerunner's toner, potassium peroxydisulfate, iron chloride and neopelex mass ratio be (10-20):(30-60):
(0.3-0.5):(2-4):(0.2-0.4)。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810877619.9A CN108912592A (en) | 2018-08-03 | 2018-08-03 | A kind of polyformaldehyde composite material and preparation method thereof |
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| CN201810877619.9A CN108912592A (en) | 2018-08-03 | 2018-08-03 | A kind of polyformaldehyde composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592628A (en) * | 2021-09-02 | 2022-06-07 | 绍兴文理学院元培学院 | Curtain wall mounting component, material and manufacturing method thereof |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20181130 |