CN102304250A - High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof - Google Patents
High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof Download PDFInfo
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- CN102304250A CN102304250A CN201110263574A CN201110263574A CN102304250A CN 102304250 A CN102304250 A CN 102304250A CN 201110263574 A CN201110263574 A CN 201110263574A CN 201110263574 A CN201110263574 A CN 201110263574A CN 102304250 A CN102304250 A CN 102304250A
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Abstract
The invention relates to high-melt-index halogen-free flame-retarding polypropylene and a preparation method thereof. The composite material comprises the following raw materials in percentage by weight: 50 to 75 percent of polypropylene (PP), 10 to 30 percent of ammonium polyphosphate (APP) flame retardant, 5 to 15 percent of pentaerythritol (PER) flame retardant, 5 to 15 percent of melamine cyanurate (MCA) flame retardant, 1 to 10 percent of imvite, 0.4 percent of antioxygen and 0.3 percent of lubricating agent. The preparation method comprises: weighing raw materials according to a weight ratio; mixing all raw materials in a high-speed mixer for 2 to 5 minutes; discharging; and filling uniformly mixed raw material in to a screw extruder for extrusion and granulation. Compared with the prior art, the high-melt-index halogen-free flame-retarding polypropylene has high mechanical performance, and particularly the melt index of the high-melt-index halogen-free flame-retarding polypropylene is greatly improved; and compared with the common halogen-free flame-retarding PP, the melt index of the high-melt-index halogen-free flame-retarding polypropylene is increased by more than100 percent. The high-melt-index halogen-free flame-retarding polypropylene is suitable to make complex membranes with high surface requirements and flame-retarding requirements, and can be widely used in fields of electronic appliances, home appliances and the like.
Description
Technical field
The present invention relates to a kind of preparation method of high molten finger halogen-free polypropylene flame redardant, this material can be made the production unit with high surface requirements and halogen-free flameproof requirement, has very wide application in fields such as electric, household electrical appliances.
Background technology
The PP material is little because of its density, high has obtained widely of cost performance is used, and fire-retardant PP greatly reduces the melting index of product because of factors such as the fire retardant addition are big, causes on a lot of baroque Injection moulded parts, to be easy to generate current mark and injection moulding and defective such as to be discontented with.At present, about improving the molten research that refers to of polypropylene flame redardant seldom, there also do not have effective method to improve to be mobile both at home and abroad.
Summary of the invention
The molten finger of height halogen-free polypropylene flame redardant of defectives such as the object of the invention is exactly in order to overcome the defective that above-mentioned prior art exists a kind of melting index that can improve halogen-free flameproof PP greatly to be provided, and the current mark that improves injection-molded item and injection moulding are discontented and preparation method thereof.
The objective of the invention is to realize through following technical scheme:
The present invention relates to a kind of high molten finger halogen-free polypropylene flame redardant, is to be processed by following materials of weight proportions:
PP 50～75%，
Fire retardant APP 10～30%,
Fire retardant PER 5～15%,
Fire retardant MCA 5～15%,
Polynite 1～10%,
Oxidation inhibitor 0.4%,
Lubricant 0.3%.
Preferably, described PP is copolymerization PP, and melting index is 25.
Preferably, described fire retardant APP is an ammonium polyphosphate, and molecular weight is greater than 1000; Described fire retardant PER is a tetramethylolmethane; Described fire retardant MCA is a melamine cyanurate salt.
Preferably, the interlamellar spacing of described polynite is 0.5nm.
Preferably, described oxidation inhibitor is the compound system of Hinered phenols antioxidant and phosphite ester kind antioxidant.
Preferably, described oxidation inhibitor is that mass ratio is the phosphite ester kind antioxidant 168 of 1:1, the compound system of Hinered phenols antioxidant 1010.
Preferably, described lubricant is modification ethylene bis-fatty acid amides TAF.
The invention still further relates to the molten preparation method who refers to halogen-free polypropylene flame redardant of a kind of above-mentioned height, comprise the steps:
(1) weighs said raw material by said weight percent content;
(2) all raw materials were put into high-speed mixer and mixing 2～5 minutes, discharging;
(3) mixed raw material is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180～600 rev/mins, and temperature is 150 ℃～200 ℃.
Compared with prior art, the material of the inventive method preparation has high workability and good flame performance, can make to have the every field that production unit, electronic apparatus, household electrical appliances etc. have fire-retardant and high surface requirements.
Embodiment
Elaborate in the face of embodiments of the invention down: present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Embodiment 1～5
Each raw material and weight percent content thereof are as shown in table 1 in the molten finger of the height of embodiment 1～5 halogen-free polypropylene flame redardant.Wherein, PP is copolymerization PP, and melting index is 25; Fire retardant APP is an ammonium polyphosphate, and molecular weight is greater than 1000; Described fire retardant PER is a tetramethylolmethane; Described fire retardant MCA is a melamine cyanurate salt; The interlamellar spacing of polynite (MMT) is 0.5nm; Oxidation inhibitor is that mass ratio is the phosphite ester kind antioxidant 168 of 1:1, the compound system of Hinered phenols antioxidant 1010; Lubricant is modification ethylene bis-fatty acid amides TAF.
Table 1
Raw material among the embodiment 1 was put into high-speed mixer and mixing 3 minutes in proportion, use the screw extrusion press extruding pelletization then, obtain the high molten halogen-free polypropylene flame redardant that refers to, its processing temperature is at 180 ℃, and the screw rod revolution is at 400 rev/mins.
Raw material among the embodiment 2,3 was put into high-speed mixer and mixing 2 minutes in proportion, use the screw extrusion press extruding pelletization then, obtain the molten halogen-free polypropylene flame redardant that refers to of corresponding height respectively, its processing temperature is at 150 ℃, and the screw rod revolution is at 180 rev/mins.
Raw material among the embodiment 4,5 was put into high-speed mixer and mixing 5 minutes in proportion, use the screw extrusion press extruding pelletization then, obtain the molten halogen-free polypropylene flame redardant that refers to of corresponding height respectively, its processing temperature is at 200 ℃, and the screw rod revolution is at 600 rev/mins.
Embodiment 6, performance test
The molten halogen-free polypropylene flame redardant sample that refers to of height that the foregoing description 1～5 is made carries out the performance test contrast, and mechanical property is tested with ASTM, and flame retardant properties is pressed the UL-94 standard testing.The result is as shown in table 2.
Table 2
Can know that by table 2 height that embodiment 1～5 makes is molten to refer to that halogen-free polypropylene flame redardant has the UL-94 flame retardant rating that mechanical property preferably and higher melting index and grade are V0, promptly has high workability and good flame performance; Be applicable to make and have the every field that production unit, electronic apparatus, household electrical appliances etc. have fire-retardant and high surface requirements.
Claims (8)
1. one kind high molten finger halogen-free polypropylene flame redardant is characterized in that, is to be processed by following materials of weight proportions:
PP 50～75%，
Fire retardant APP 10～30%,
Fire retardant PER 5～15%,
Fire retardant MCA 5～15%,
Polynite 1～10%,
Oxidation inhibitor 0.4%,
Lubricant 0.3%.
2. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 1 is characterized in that described PP is copolymerization PP, and melting index is 25.
3. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 1 is characterized in that described fire retardant APP is an ammonium polyphosphate, and molecular weight is greater than 1000; Described fire retardant PER is a tetramethylolmethane; Described fire retardant MCA is a melamine cyanurate salt.
4. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 1 is characterized in that the interlamellar spacing of described polynite is 0.5nm.
5. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 1 is characterized in that described oxidation inhibitor is the compound system of Hinered phenols antioxidant and phosphite ester kind antioxidant.
6. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 5 is characterized in that described oxidation inhibitor is that mass ratio is the phosphite ester kind antioxidant 168 of 1:1, the compound system of Hinered phenols antioxidant 1010.
7. the molten halogen-free polypropylene flame redardant that refers to of height according to claim 1 is characterized in that described lubricant is modification ethylene bis-fatty acid amides TAF.
8. the preparation method of a high according to claim 1 molten finger halogen-free polypropylene flame redardant is characterized in that, comprises the steps:
(1) weighs said raw material by said weight percent content;
(2) all raw materials were put into high-speed mixer and mixing 2～5 minutes, discharging;
(3) mixed raw material is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180～600 rev/mins, and temperature is 150 ℃～200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110263574.4A CN102304250B (en) | 2011-09-07 | 2011-09-07 | High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof |
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| CN201110263574.4A CN102304250B (en) | 2011-09-07 | 2011-09-07 | High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof |
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| CN102304250B CN102304250B (en) | 2014-04-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643477A (en) * | 2012-02-13 | 2012-08-22 | 江门市道生工程塑料有限公司 | Environment-friendly flame-retardant polypropylene composite and manufacturing method thereof |
| CN102702612A (en) * | 2012-07-06 | 2012-10-03 | 上海日之升新技术发展有限公司 | High-flow precipitation-resistant halogen-free flame-retardant polypropylene composite material and preparation method thereof |
| CN102719022A (en) * | 2012-07-06 | 2012-10-10 | 上海日之升新技术发展有限公司 | Anti-aging halogen-free flame retardant polypropylene composite material and preparation method thereof |
| CN107216542A (en) * | 2015-07-17 | 2017-09-29 | 江苏理工学院 | Halogen-free anti-flaming polypropylene material |
| CN109810415A (en) * | 2019-01-29 | 2019-05-28 | 青岛科技大学 | It is a kind of using pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound as the expansion type flame retardant of carbon forming agent |
| CN112708208A (en) * | 2020-12-23 | 2021-04-27 | 成都金发科技新材料有限公司 | Polypropylene composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928430A (en) * | 2010-10-14 | 2010-12-29 | 北京东方绿达科技发展有限责任公司 | Novel flame redundant material and preparation method thereof |
-
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- 2011-09-07 CN CN201110263574.4A patent/CN102304250B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928430A (en) * | 2010-10-14 | 2010-12-29 | 北京东方绿达科技发展有限责任公司 | Novel flame redundant material and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643477A (en) * | 2012-02-13 | 2012-08-22 | 江门市道生工程塑料有限公司 | Environment-friendly flame-retardant polypropylene composite and manufacturing method thereof |
| CN102702612A (en) * | 2012-07-06 | 2012-10-03 | 上海日之升新技术发展有限公司 | High-flow precipitation-resistant halogen-free flame-retardant polypropylene composite material and preparation method thereof |
| CN102719022A (en) * | 2012-07-06 | 2012-10-10 | 上海日之升新技术发展有限公司 | Anti-aging halogen-free flame retardant polypropylene composite material and preparation method thereof |
| CN102719022B (en) * | 2012-07-06 | 2015-06-03 | 上海日之升新技术发展有限公司 | Anti-aging halogen-free flame retardant polypropylene composite material and preparation method thereof |
| CN107216542A (en) * | 2015-07-17 | 2017-09-29 | 江苏理工学院 | Halogen-free anti-flaming polypropylene material |
| CN107216542B (en) * | 2015-07-17 | 2020-01-10 | 江苏理工学院 | Halogen-free flame-retardant polypropylene material |
| CN109810415A (en) * | 2019-01-29 | 2019-05-28 | 青岛科技大学 | It is a kind of using pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound as the expansion type flame retardant of carbon forming agent |
| CN109810415B (en) * | 2019-01-29 | 2021-05-04 | 青岛科技大学 | Intumescent flame retardant taking pentaerythritol modified melamine formaldehyde resin/piperazine pyrophosphate compound as char forming agent |
| CN112708208A (en) * | 2020-12-23 | 2021-04-27 | 成都金发科技新材料有限公司 | Polypropylene composite material and preparation method thereof |
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