CN102977462A - Halogen-free flame retardant hydrolysis-resistant polypropylene resin and processing technology of manufacturing film by utilizing same - Google Patents
Halogen-free flame retardant hydrolysis-resistant polypropylene resin and processing technology of manufacturing film by utilizing same Download PDFInfo
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- CN102977462A CN102977462A CN2012104742586A CN201210474258A CN102977462A CN 102977462 A CN102977462 A CN 102977462A CN 2012104742586 A CN2012104742586 A CN 2012104742586A CN 201210474258 A CN201210474258 A CN 201210474258A CN 102977462 A CN102977462 A CN 102977462A
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Abstract
The invention discloses a halogen-free flame retardant hydrolysis-resistant polypropylene resin. Polypropylene resin, a fire retardant and an antioxidant are mixed into the polypropylene resin which is high-viscosity co-polypropylene, the fire retardant is a compounded system of tris cyanurate and tripolycyanamide, the antioxidant is a hindered phenol or phosphite ester antioxidant, and the specific gravities of the polypropylene resin, fire retardant and antioxidant components are 89.5%, 10% and 0.5% respectively; and halogen-free flame retardant hydrolysis-resistant polypropylene resin which is uniformly mixed is added into a co-rotating twin-screw extruder and then added into a three-roller calendered sheet extrusion moulding machine, so that the polypropylene film is obtained. The halogen-free flame retardant hydrolysis-resistant polypropylene resin and the manufactured film produce less pollution, the processability of a three-roller calendaring and moulding process is guaranteed, the UL-94V-0 flame retardant grade can be achieved by a film product with the thickness of more than 0.3mm, the water resistance is good, and good high-voltage breakdown resistance, folding resistance and transparency of polypropylene are maintained.
Description
Technical field
The present invention relates to a kind of anti-high-voltage breakdown fire retardant insulating film field for making electronic apparatus, relate in particular to a kind of halogen-free flameproof hydrolysis acrylic resin and make the complete processing of film.
Background technology
Polypropylene is because its excellent processibility, chemical resistant properties and physical strength, be widely used in household electrical appliance, building slab is in house decorative material and the trolley part, yet, itself very easily burns polypropylene, and along with the raising to the plastic safety requirement, a lot of occasions require polypropylene necessary fire-retardant, therefore a lot of researchs are carried out, by add various organic and inorganic fire retardants in the polypropylene to reach fire-retardant purpose.
Flame-retardant polypropylene film has the high pressure resistant breakdown of good folding resistance government office in feudal China, therefore have widely at electronic enterprises and use, because the high crystalline of polypropylene itself, reach that the V-0 level is fire-retardant not to be easy to, only have at present the high voltage withstanding harsh requirement of fire-retardant hydrolysis of using the polypropylene film that halogen fire retardant is arranged just can reach electronic enterprises.There is halogen fire retardant the time to discharge a large amount of dense smoke and corrodibility halogenide in burning, causes casualties and corrode various device.Along with the intensification to the understanding of halogen flame retardant material hazardness, nearly all halogen flame retardant material is substituted by bittern-free flame-proof material gradually, and is more obvious in this trend of electronic enterprises.
The halogen-free polypropylene flame redardant film that the film-grade of using is also arranged in the market, its advantage that replaces halogen-free and flame-retardant polycarbonate is that density is little, and cost is low, and folding resistance is good.But also there is a large amount of shortcomings, the one, the halogen-free polypropylene flame redardant resin is when being processed into film, because what adopt is that three roll-ins are prolonged and processed, polypropylene flame redardant is that phosphorus nitrogen is flame-retardant system, the phenomenon of separating out that has aborning a large amount of fire retardants, be attached to the processing mold surface, seriously influenced product quality, and cause the damage of production mould.The 2nd, processing film out can't be by strict hydrolysis test, the film after hydrolysis is processed, and electrical property completely loses, and can't satisfy the application demand of insulated electrical equipment industry.The 3rd, cost is relatively high, without market competition advantage.The 4th, the scrap stock in producing, because the water absorbability of material itself is higher, recovery utilization rate is low.
Summary of the invention
Technical problem to be solved by this invention is, a kind of halogen-free flameproof hydrolysis acrylic resin is provided and makes the complete processing of film; Solved existing have the halogen anti-flaming polypropylene material can not satisfy environmental requirement, hydrolytic resistance poor, separate out in producing and cost is high, the problem that can't recycle.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of halogen-free flameproof hydrolysis acrylic resin, mixed by acrylic resin, fire retardant and oxidation inhibitor, described acrylic resin is the high viscosity Co-polypropylene, described fire retardant is the compound system of three cyanurates and trimeric cyanamide, described oxidation inhibitor is Hinered phenols or phosphite ester kind antioxidant, and the composition proportion of described acrylic resin, fire retardant and oxidation inhibitor is respectively 89.5%, 10% and 0.5%.
Described high viscosity Co-polypropylene melting index is 1g/10min～5g/10min.
Described Hinered phenols antioxidant is hindered phenol primary antioxidant 1010,3114 or 1076.
A kind of halogen-free flameproof hydrolysis acrylic resin processing film technique may further comprise the steps: a. adds the halogen-free flameproof hydrolysis acrylic resin that mixes in the parallel dual-screw extruding machine, through fusion plastification, mixing, reel off raw silk from cocoons, cool off, then pelletizing; The halogen-free flameproof hydrolysis acrylic resin that b. will be cut into grain adds three roll-ins and prolongs the sheet material extrusion shaping machine, through T-shaped die head moulding, then finishes the production of polypropylene film by three roller coolings, traction and thickness measuring rolling.
Compared with prior art, usefulness of the present invention is: this halogen-free flameproof hydrolysis acrylic resin and the Film Contamination of making thereof are little, guaranteed the processibility that moulding process is prolonged in three roll-ins, can realize that the above film product of 0.3mm reaches the flame retardant rating of UL-94 V-0, water-tolerant, polypropylene good high pressure resistant breakdown, folding resistance and the transparency have been kept.
Embodiment:
Describe the present invention below in conjunction with embodiment.
Embodiment one:
Selecting melting index is the Co-polypropylene resin of 1g/10min, add in the high-speed mixer in adding ratio 89.5/10/0.5 with fire retardant and thermo-stabilizer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling, after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, the surface has the true qualities clear sheet in the frosted line, and is to be tested.
Embodiment two:
Selecting melting index is the Co-polypropylene resin of 3g/10min, with fire retardant and thermo-stabilizer in proportion 89.5/10/0.5 add in the high-speed mixer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling, after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, the surface has the true qualities clear sheet in the frosted line, and is to be tested.
Embodiment three:
Selecting melting index is the Co-polypropylene resin of 5g/10min, with fire retardant and thermo-stabilizer in proportion 89.5/10/0.5 add in the high-speed mixer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling, after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, the surface has the true qualities clear sheet in the frosted line, and is to be tested.
Embodiment four:
Selecting melting index is the Co-polypropylene resin of 8g/10min, with fire retardant and thermo-stabilizer in proportion 89.5/10/0.5 add in the high-speed mixer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling, after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, the surface has the true qualities clear sheet in the frosted line, and is to be tested.
Embodiment five:
Selecting melting index is the Co-polypropylene resin of 3g/10min, with fire retardant, thermo-stabilizer in proportion 84.5/15/0.5 adds in the high-speed mixer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling is after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, and the surface has the true qualities sheet material in the frosted line, and is to be tested.
Embodiment six:
Selecting melting index is the Co-polypropylene resin of 3g/10min, with fire retardant, thermo-stabilizer in proportion 94.5/5/0.5 adds in the high-speed mixer, after high-speed mixing stirs, confirm to mix the parallel dual-screw extruding machine plasticizing by 75 types, take out grain, cooling is after the pelletizing, directly add the processing film unit that three roll-ins are prolonged, making thickness is 0.45mm, and the surface has the true qualities sheet material in the frosted line, and is to be tested.
The performance comparison test chart of the acrylic resin film that above-mentioned six embodiment make is as follows:
| Film thickness (mm) | Processing film | Flame retardant resistance test (UL-94) | Determination of halides (bromine content ppm) | Folding property | Transparency | Before processing breakdown voltage resistant (KV) | Breakdown voltage resistant (KV) behind 100 ℃ of poach 2h | |
| Halogen has product now | 0.45 | Separate out | V-0 | <900 | △ | Opaque | 8～9 | <0.5 |
| There is halogen to have product now | 0.45 | Without separating out | V-0 | >60000 | ○ | Opaque | >15 | >15 |
| Embodiment one | 0.45 | Without separating out | V-0 | <900 | ○ | Transparent | >15 | >15 |
| Embodiment two | 0.45 | Without separating out | V-0 | <900 | ○ | Transparent | >15 | >15 |
| Embodiment three | 0.45 | Without separating out | V-0 | <900 | ○ | Transparent | >15 | >15 |
| Embodiment four | 0.45 | Without separating out uneven thickness | V-1 | <900 | ○ | Transparent | >15 | >15 |
| Embodiment five | 0.45 | Without separating out | V-0 | <900 | ○ | Translucent | >15 | >15 |
| Embodiment six | 0.45 | Without separating out | V-1 | <900 | ○ | Transparent | >15 | >15 |
Zero: good △: general *: poor
As can be seen from the above experimental data, by adding this based flame retardant, choose the product performance demands that the different molten acrylic resins that refer to can be expected, compare with the product of existing halogen-free flameproof, find through the proof voltage test of carrying out behind 100 ℃ of poach 2h, there is serious suction phenomenon in existing product, process product later and almost completely lose aspect electrical property, have serious defective in actual application.Prescription of the present invention has solved problems just, and simultaneously at cost, separate out on the surface, and the aspects such as the transparency are significantly improved.Find that from experiment the different acrylic resin of melting index can be influential for the processibility of film product, relatively molten index surpasses 5 acrylic resin in wide-range film processing, can cause the thickness offset of film product, and descend after the flame retardant resistance.Require processing to select to be lower than 5 acrylic resin with molten the finger, preferred 3 resin is as base material.Change different interpolation ratios, when flame-retardant system adds 15%, the corresponding increase of cost, and also the product transparency descends to some extent, and flame retardant resistance is as good as.When flame-retardant system added 5%, flame retardant resistance was slightly inadequate, can only reach V-1. through experiment confirm, and the interpolation of 10% composite flame retardant system can realize the fire-retardant requirement of V-0, has guaranteed simultaneously other performances.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (4)
1. halogen-free flameproof hydrolysis acrylic resin, mixed by acrylic resin, fire retardant and oxidation inhibitor, it is characterized in that, described acrylic resin is the high viscosity Co-polypropylene, described fire retardant is the compound system of three cyanurates and trimeric cyanamide, described oxidation inhibitor is Hinered phenols or phosphite ester kind antioxidant, and the composition proportion of described acrylic resin, fire retardant and oxidation inhibitor is respectively 89.5%, 10% and 0.5%.
2. halogen-free flameproof hydrolysis acrylic resin according to claim 1 is characterized in that, described high viscosity Co-polypropylene melting index is 1g/10min～5g/10min.
3. halogen-free flameproof hydrolysis acrylic resin according to claim 1 is characterized in that, described Hinered phenols antioxidant is hindered phenol primary antioxidant 1010,3114 or 1076.
4. a halogen-free flameproof hydrolysis acrylic resin processing film technique is characterized in that, may further comprise the steps:
A. the halogen-free flameproof hydrolysis acrylic resin that mixes is added in the parallel dual-screw extruding machine, through fusion plastification, mixing, reel off raw silk from cocoons, cool off, then pelletizing;
The halogen-free flameproof hydrolysis acrylic resin that b. will be cut into grain adds three roll-ins and prolongs the sheet material extrusion shaping machine, through T-shaped die head moulding, then finishes the production of polypropylene film by three roller coolings, traction and thickness measuring rolling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104742586A CN102977462A (en) | 2012-11-21 | 2012-11-21 | Halogen-free flame retardant hydrolysis-resistant polypropylene resin and processing technology of manufacturing film by utilizing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104742586A CN102977462A (en) | 2012-11-21 | 2012-11-21 | Halogen-free flame retardant hydrolysis-resistant polypropylene resin and processing technology of manufacturing film by utilizing same |
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| CN102977462A true CN102977462A (en) | 2013-03-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292790A (en) * | 2021-05-26 | 2021-08-24 | 潘秋 | CPP film and production process thereof |
| CN113960159A (en) * | 2021-09-13 | 2022-01-21 | 中国电力科学研究院有限公司 | Power-resistant performance testing device and testing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148527A (en) * | 2006-09-19 | 2008-03-26 | 佛山市顺德区高怡新塑料有限公司 | Nanometer halogen-free anti-flaming polypropylene composite material and preparation method thereof |
| CN101550249A (en) * | 2008-04-02 | 2009-10-07 | 上海化工研究院 | Halogen-free expandable fire retardant fiber glass reinforced polypropylene material and preparation method thereof |
-
2012
- 2012-11-21 CN CN2012104742586A patent/CN102977462A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148527A (en) * | 2006-09-19 | 2008-03-26 | 佛山市顺德区高怡新塑料有限公司 | Nanometer halogen-free anti-flaming polypropylene composite material and preparation method thereof |
| CN101550249A (en) * | 2008-04-02 | 2009-10-07 | 上海化工研究院 | Halogen-free expandable fire retardant fiber glass reinforced polypropylene material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄锐 等: "《塑料成型工艺学》", 31 May 1997, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292790A (en) * | 2021-05-26 | 2021-08-24 | 潘秋 | CPP film and production process thereof |
| CN113960159A (en) * | 2021-09-13 | 2022-01-21 | 中国电力科学研究院有限公司 | Power-resistant performance testing device and testing method |
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Application publication date: 20130320 |