CN104045965A - Micronized polytetrafluoroethylene wax modified polyformaldehyde composite material and preparation method thereof - Google Patents
Micronized polytetrafluoroethylene wax modified polyformaldehyde composite material and preparation method thereof Download PDFInfo
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- CN104045965A CN104045965A CN201410269725.0A CN201410269725A CN104045965A CN 104045965 A CN104045965 A CN 104045965A CN 201410269725 A CN201410269725 A CN 201410269725A CN 104045965 A CN104045965 A CN 104045965A
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- ptfe micropowder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/9218—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a micronized polytetrafluoroethylene wax modified polyformaldehyde composite material and a preparation method thereof. The micronized polytetrafluoroethylene wax modified polyformaldehyde composite material comprises the following components in parts by weight: 80-95 parts of polyformaldehyde, 5-20 parts of micronized polytetrafluoroethylene wax, 0.1-2.0 parts of a heat stabilizer and 0.5-1.0 part of lubricant. Since the micronized polytetrafluoroethylene wax is an organic polymer and easily adhered to the interface of polyoxymethylene, the composite material has excellent physical properties and problems of material blockage, easy breakage of the drawing bar and the like in the production process can be solved, and the composite material can be widely used in production of products with a high wear resistance requirement.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to a kind of ptfe micropowder wax improved polyoxymethylene composite and preparation method thereof.
Background technology
Polyoxymethylene is a kind of engineering plastics of high comprehensive performance, there are high strength and stiffness, good dimensional stability, good resistance to fatigue, creep resistant, self lubricity and wear resisting property, be widely used at aspects such as machinery, automobile, electronics, household electrical appliances and building materials and manufacture the various parts with low frictional coefficient wearable performance.But polyoxymethylene poor heat stability, easily decomposition at high temperature; And its machine-shaping temperature is narrow, and ageing resistance is poor, only can under the condition of low speed, underload, use.For polyoxymethylene is used under the severe condition such as high speed, high loading, just must be on the basis of the physical and mechanical properties of original excellence, further reduce its frictional coefficient and wear rate, this just need to realize by the modification of polyoxymethylene.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiency of existing polyformaldehyde material, and a kind of low frictional coefficient wearable, simple, the lower-cost ptfe micropowder wax of preparation technology improved polyoxymethylene composite and preparation method thereof are provided.
The present invention solves the technical scheme that told technical problem adopts:
A kind of ptfe micropowder wax improved polyoxymethylene composite, made by weight by following raw material:
Polyoxymethylene 80-95 part
Ptfe micropowder wax 5-20 part
0.1～2.0 part of thermo-stabilizer
Lubricant 0.5-1.0 part
Further, the volume density of described ptfe micropowder wax is 0.35-0.45g/ml, median size 6 μ m.
Further, described polyoxymethylene is at 190 DEG C, and the melting index under the test condition of 2.16kg is 9g/10min.
Further, described thermo-stabilizer is at least one in calcium stearate, trimeric cyanamide, polymeric amide, Hinered phenols antioxidant.Wherein Hinered phenols antioxidant comprises antioxidant 1010 (four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), irgasfos 168 (three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid ester).
Further, described lubricant is at least one of white oil, silicone oil, paraffin, stearic acid, calcium stearate, Zinic stearas.
Another technical scheme of the present invention is to provide the preparation method of above-mentioned ptfe micropowder wax improved polyoxymethylene composite, comprises the following steps:
(1) raw material is weighed in proportion and joined in high-speed mixer, mix 2-10min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, temperature is 150-180 DEG C;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, temperature is 150-180 DEG C.
Because ptfe micropowder wax is organic polymer, add trickle size, its interfacial adhesion easy and polyoxymethylene, therefore have higher consistency and interface cohesive force between ptfe micropowder wax and matrix polyoxymethylene.Thereby make to make the reason excellent performance of matrix material, can solve the problems such as the plug material, the tie rod that run into be easily broken in the course of processing.
The excellent properties such as the polyformaldehyde composite material that the present invention makes has wear-resisting, lubricated, high temperature resistant, corrosion-resistant, weathering resistance, use widely in modifying plastics field.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
The volume density 0.35-0.45g/ml of ptfe micropowder wax used, median size 6 μ m in the present invention; Molten polyformaldehyde index is 9g/10min.
Embodiment 1
The present embodiment raw material weight proportioning is: 90 parts of polyoxymethylene, 10 parts, ptfe micropowder wax, 1 part of antioxidant 1010,1 part of irgasfos 168,0.5 part of silicone oil, 0.5 part of calcium stearate.
Preparation method:
(1) above-mentioned raw materials is weighed in proportion and joined in high-speed mixer, mix 5min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts.
The present embodiment product performance testing method standard number and test result are listed in table 1.
Embodiment 2
The present embodiment raw material weight proportioning is: 85 parts of polyoxymethylene, 15 parts, ptfe micropowder wax, 1 part of calcium stearate, 0.1 part of antioxidant 1010,0.5 part of silicone oil.
Preparation method:
(1) raw material is weighed in proportion and joined in high-speed mixer, mix 2min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts.
The present embodiment product test the results are shown in table 1.
Embodiment 3
The present embodiment raw material weight proportioning is: 80 parts of polyoxymethylene, 20 parts, ptfe micropowder wax, 1 part of antioxidant 1010,0.5 part of irgasfos 168,0.5 part of white oil, 0.5 part, paraffin.
Preparation method:
(1) raw material is weighed in proportion and joined in high-speed mixer, mix 8min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts.
The present embodiment product test the results are shown in table 1.
Embodiment 4
The present embodiment raw material weight proportioning is: 95 parts of polyoxymethylene, 5 parts, ptfe micropowder wax, 0.1 part of trimeric cyanamide, 0.5 part of Zinic stearas.
Preparation method:
(1) raw material is weighed in proportion and joined in high-speed mixer, mix 10min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, 150 DEG C, temperature Wei Yi district, two 170 DEG C, districts, three 180 DEG C, districts, four 180 DEG C, districts, five 180 DEG C, districts.
The polyformaldehyde composite material that above prepared by embodiment 1-4 is tested its frictional coefficient and Volume erosion rate according to testing standard, and got pure polyoxymethylene as a comparison, concrete testing standard and result are as shown in table 1 below:
Table 1: physicals
Can find out by upper table 1 test result, polyformaldehyde composite material prepared by the present invention has excellent wear-resisting and lubricity; And compare with pure polyoxymethylene, its wear resisting property improves greatly.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (6)
1. a ptfe micropowder wax improved polyoxymethylene composite, is characterized in that: be made up by weight of following raw material:
Polyoxymethylene 80-95 part
Ptfe micropowder wax 5-20 part
0.1～2.0 part of thermo-stabilizer
Lubricant 0.5-1.0 part.
2. ptfe micropowder wax improved polyoxymethylene composite according to claim 1, is characterized in that: the volume density of described ptfe micropowder wax is that 0.35-0.45g/ml, median size are 6 μ m.
3. ptfe micropowder wax improved polyoxymethylene composite according to claim 1, is characterized in that: described polyoxymethylene is at 190 DEG C, and the melting index under the test condition of 2.16kg is 9g/10min.
4. ptfe micropowder wax improved polyoxymethylene composite according to claim 1, is characterized in that: described thermo-stabilizer is at least one in calcium stearate, trimeric cyanamide, polymeric amide, Hinered phenols antioxidant.
5. ptfe micropowder wax improved polyoxymethylene composite according to claim 1, is characterized in that: described lubricant is at least one of white oil, silicone oil, paraffin, stearic acid, calcium stearate, Zinic stearas.
6. the preparation method of ptfe micropowder wax improved polyoxymethylene composite as claimed in claim 1, is characterized in that: comprise the following steps:
(1) raw material is weighed in proportion and joined in high-speed mixer, mix 2-10min;
(2) by step (1) gained mixture at equidirectional parallel double-screw extruder extruding pelletization, temperature is 150-180 DEG C;
(3) by the injection moulding in parallel dual-screw injection moulding machine of step (2) gained pellet, temperature is 150-180 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410269725.0A CN104045965A (en) | 2014-06-17 | 2014-06-17 | Micronized polytetrafluoroethylene wax modified polyformaldehyde composite material and preparation method thereof |
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| CN201410269725.0A CN104045965A (en) | 2014-06-17 | 2014-06-17 | Micronized polytetrafluoroethylene wax modified polyformaldehyde composite material and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647103A (en) * | 2014-11-10 | 2016-06-08 | 合肥杰事杰新材料股份有限公司 | Modified polyformaldehyde composite material and preparation method thereof |
| CN105670214A (en) * | 2014-11-21 | 2016-06-15 | 合肥杰事杰新材料股份有限公司 | Highly-wear-resistant silicon nitride/polyformaldehyde nano composite material and preparation method thereof |
| CN107286566A (en) * | 2017-07-17 | 2017-10-24 | 宁波海雨新材料科技有限公司 | A kind of activeness and quietness improved polyoxymethylene composite |
| CN107629213A (en) * | 2016-07-18 | 2018-01-26 | 昆山台益塑胶科技有限公司 | A kind of POM and PTFE micro mist copolymers and preparation method thereof |
| CN107629395A (en) * | 2016-07-18 | 2018-01-26 | 昆山台益塑胶科技有限公司 | A kind of POM and PTFE copolymers and preparation method thereof |
| US10538717B2 (en) | 2016-10-11 | 2020-01-21 | Celanese Sales Germany Gmbh | Wear resistant polymer composition having improved surface appearance |
| CN110862647A (en) * | 2019-10-23 | 2020-03-06 | 高邮市恒辉机械有限公司 | MC nylon anti-skid block for power head of rotary drilling rig |
| CN110903671A (en) * | 2019-11-20 | 2020-03-24 | 天津渤化永利化工股份有限公司 | Polyformaldehyde-based wood-plastic composite material and preparation method thereof |
| US10676558B2 (en) | 2017-04-07 | 2020-06-09 | Ticona Llc | Low emission polyoxymethylene composition |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647103A (en) * | 2014-11-10 | 2016-06-08 | 合肥杰事杰新材料股份有限公司 | Modified polyformaldehyde composite material and preparation method thereof |
| CN105647103B (en) * | 2014-11-10 | 2019-04-30 | 合肥杰事杰新材料股份有限公司 | A kind of improved polyoxymethylene composite and preparation method thereof |
| CN105670214A (en) * | 2014-11-21 | 2016-06-15 | 合肥杰事杰新材料股份有限公司 | Highly-wear-resistant silicon nitride/polyformaldehyde nano composite material and preparation method thereof |
| CN105670214B (en) * | 2014-11-21 | 2019-04-30 | 合肥杰事杰新材料股份有限公司 | A kind of high abrasion silicon nitride/nano composite polyformaldehyde material and preparation method thereof |
| CN107629213A (en) * | 2016-07-18 | 2018-01-26 | 昆山台益塑胶科技有限公司 | A kind of POM and PTFE micro mist copolymers and preparation method thereof |
| CN107629395A (en) * | 2016-07-18 | 2018-01-26 | 昆山台益塑胶科技有限公司 | A kind of POM and PTFE copolymers and preparation method thereof |
| US10538717B2 (en) | 2016-10-11 | 2020-01-21 | Celanese Sales Germany Gmbh | Wear resistant polymer composition having improved surface appearance |
| US11407957B2 (en) | 2016-10-11 | 2022-08-09 | Celanese Sales Germany Gmbh | Wear resistant polymer composition having improved surface appearance |
| US10676558B2 (en) | 2017-04-07 | 2020-06-09 | Ticona Llc | Low emission polyoxymethylene composition |
| CN107286566A (en) * | 2017-07-17 | 2017-10-24 | 宁波海雨新材料科技有限公司 | A kind of activeness and quietness improved polyoxymethylene composite |
| CN110862647A (en) * | 2019-10-23 | 2020-03-06 | 高邮市恒辉机械有限公司 | MC nylon anti-skid block for power head of rotary drilling rig |
| CN110903671A (en) * | 2019-11-20 | 2020-03-24 | 天津渤化永利化工股份有限公司 | Polyformaldehyde-based wood-plastic composite material and preparation method thereof |
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Application publication date: 20140917 |