CN105440445A - Closed cell foamed halogen-free flame-retardant PP material and preparation method thereof - Google Patents
Closed cell foamed halogen-free flame-retardant PP material and preparation method thereof Download PDFInfo
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- CN105440445A CN105440445A CN201510955885.5A CN201510955885A CN105440445A CN 105440445 A CN105440445 A CN 105440445A CN 201510955885 A CN201510955885 A CN 201510955885A CN 105440445 A CN105440445 A CN 105440445A
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- halogen
- free flame
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- blended
- cell foam
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
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- 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
- C08K3/04—Carbon
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to a preparation method of a closed cell foamed halogen-free flame-retardant PP material, which comprises the following components in percentage by weight: 8 to 13 wt% of closed cell foaming agent, 50 to 61 wt% of PP particle, 30 to 35 wt% of halogen-free flame retardant, and 1 to 5 wt% of active carbon and/or honeycomb briquette, wherein the total weight percentage is 100 wt%. The preparation method comprises the following steps: (1) mixing PP particles and halogen-free flame retardant, and performing primary blending; (2) adding halogen-free flame retardant and active carbon and/or honeycomb briquette, performing secondary blending, and evenly mixing to obtain a raw material composition; (3) subjecting the raw material composition to tertiary blending, and heating to carry out semi-plasticization; (4) extruding the semi-plasticized raw material composition by screws to obtain the closed cell foamed halogen-free flame-retardant PP material. The provided closed cell foamed halogen-free flame-retardant PP material has a good flame-retardant property, which can reach the UL94V2 grade; and high hardness. The shore hardness can reach 100 or more, the surface of the PP material is smooth, and the PP material does not contain any halogen, thus is environment-friendly, and is an innovative material till now.
Description
Technical field
The invention belongs to PP field of material preparation, be specifically related to a kind of closed-cell foam halogen-free flameproof PP material and preparation method thereof.
Background technology
Polypropylene is a kind of thermoplastic resin obtained by propylene polymerization.The requirements such as conventional P P material technology, cannot have the advantage that low halogen is fire-retardant with high calcium carbonate filled concurrently, and the field such as household electrical appliance, fire-resistant decoration plate has halogen-free environmental, low cost concurrently to PP material require, and fire-retardant, shrinkability is good.And the PP material of prior art cannot meet each side requirement.
This area needs to develop a kind of halogen-free environmental, low cost, the PP material that fire-retardant, shrinkability is good.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of closed-cell foam halogen-free flameproof PP material, the raw materials by weight of described method comprises following component:
Closed-cell foam agent 8 ~ 13wt%
PP particle 50 ~ 61wt%
Halogen-free flame retardants 30 ~ 35wt%
Gac and/or honeybee coal 1 ~ 5wt%
The mass percent sum of described raw material is 100wt%;
Described method comprises the steps:
(1) mix PP particle, halogen-free flame retardants, one-level is blended;
(2) add halogen-free flame retardants and gac and/or honeybee coal, secondary is blended, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, heat up, carry out half plasticizing;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
Preferably, the particle diameter of described PP particle is 50nm ~ 100 μm, such as 55nm, 76nm, 88nm, 95nm, 2 μm, 8 μm, 12 μm, 20 μm, 30 μm, 45 μm, 58 μm, 72 μm, 88 μm, 96 μm etc., preferred 70nm ~ 10 μm, further preferred 100nm ~ 5 μm.
Preferably, described closed-cell foam agent is selected from the combination of any a kind or at least 2 kinds in azo-compound, sulfonyl hydrazines compound or nitroso compound.
Preferably, described closed-cell foam agent is selected from Azodicarbonamide, diisopropyl azodiformate, Diisopropyl azodicarboxylate, N, N'-dinitrosopentamethlyene tetramine, p-toluene sulfonyl hydrazide, phenylSulphon hydrazine, right, to the combination of any a kind or at least 2 kinds in the acid of phenylbenzene sulfonyl hydrazide, preferred Diisopropyl azodicarboxylate.
Preferably, described halogen-free flame retardants comprises nitrogenated flame retardant and/or phosphorus flame retardant; Described nitrogenated flame retardant is preferably trimeric cyanamide.
Preferably, described phosphorus flame retardant is selected from the combination of any a kind or at least 2 kinds in phosphoric acid ester, phosphorous acid ester, organophosphate, preferred polyphosphoric acid amine and/or Tritolyl Phosphate.
Preferably, the blended stirring velocity of described one-level is 10rpm, and the blended stirring velocity of secondary is 50rpm, and three grades of blended stirring velocitys are 100rpm.
Preferably, the particle diameter of described gac and/or honeybee coal is 50nm ~ 100 μm, such as 55nm, 76nm, 88nm, 95nm, 2 μm, 8 μm, 12 μm, 20 μm, 30 μm, 45 μm, 58 μm, 72 μm, 88 μm, 96 μm etc., preferred 70nm ~ 10 μm, further preferred 100nm ~ 5 μm.
Preferably, described half plasticization temperature is 115 ~ 135 DEG C, and such as 117 DEG C, 119 DEG C, 122 DEG C, 125 DEG C, 128 DEG C, 131 DEG C, 134 DEG C etc., the time is 3 ~ 6min; Preferable temperature is 130 DEG C, and the time is 5min.
Preferably, the raw materials by weight of described method comprises following component:
Closed-cell foam agent 10wt%
PP particle 55wt%
Halogen-free flame retardants 33wt%
Gac and/or honeybee coal 2wt%
Described method comprises the steps:
(1) mix PP particle, halogen-free flame retardants, one-level is blended;
(2) add halogen-free flame retardants and gac and/or honeybee coal, secondary is blended, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, be warming up to 130 DEG C, carry out half plasticizing 5min;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
Two of the object of the invention is to provide a kind of closed-cell foam halogen-free flameproof PP material, and described closed-cell foam halogen-free flameproof PP material is obtained by the preparation method one of object Suo Shu.
Compared with prior art, the present invention has following beneficial effect:
Closed-cell foam halogen-free flameproof PP material flame retardant type provided by the invention is good, and can reach UL94V2 (0.8mm) rank, hardness is high, at shore hardness more than 100, smooth surface, halogen-free environmental is current most revolutionary closed-cell foam halogen-free flameproof PP material.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment.
Those skilled in the art should understand, described embodiment is only help to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
A kind of closed-cell foam halogen-free flameproof PP material, the raw materials by weight of its preparation method comprises following component:
Closed-cell foam agent 10wt%
PP particle 55wt%
Halogen-free flame retardants 33wt%
Gac and/or honeybee coal 2wt%
Described method comprises the steps:
(1) mix PP particle (particle diameter is 50nm ~ 10 μm), Tritolyl Phosphate, one-level is blended, and stirring velocity is 10rpm;
(2) add halogen-free flame retardants and gac and/or honeybee coal (particle diameter is 50nm ~ 10 μm), secondary is blended, and stirring velocity is 50rpm, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, stirring velocity is 100rpm, is warming up to DEG C, carries out half plasticizing 5min;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
Performance test: after measured, shore D hardness is 110, and flame retardant rating is UL94V2 (0.8mm).
Embodiment 2
A calcium carbonate-filled halogen-free flameproof PP material, the raw materials by weight of its preparation method comprises following component:
Closed-cell foam agent 8wt%
PP particle 61wt%
Halogen-free flame retardants 30wt%
Gac and/or honeybee coal 1wt%
(1) mix PP particle (particle diameter is 50nm ~ 10 μm), Tritolyl Phosphate, one-level is blended, and stirring velocity is 10rpm;
(2) add halogen-free flame retardants and gac and/or honeybee coal (particle diameter is 50nm ~ 10 μm), secondary is blended, and stirring velocity is 50rpm, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, stirring velocity is 100rpm, is warming up to 110 DEG C, carries out half plasticizing 6min;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
Performance test: after measured, shore D hardness is 110, and flame retardant rating is UL94V2 (0.8mm).
Embodiment 3
A calcium carbonate-filled halogen-free flameproof PP material, the raw materials by weight of its preparation method comprises following component:
Closed-cell foam agent 13wt%
PP particle 50wt%
Halogen-free flame retardants 35wt%
Gac and/or honeybee coal 2wt%
(1) mix PP particle (particle diameter is 50nm ~ 10 μm), Tritolyl Phosphate, one-level is blended, and stirring velocity is 10rpm;
(2) add halogen-free flame retardants and gac and/or honeybee coal (particle diameter is 50nm ~ 10 μm), secondary is blended, and stirring velocity is 50rpm, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, stirring velocity is 100rpm, is warming up to 135 DEG C, carries out half plasticizing 3min;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
Performance test: after measured, shore D hardness is 110, and flame retardant rating is UL94V2 (0.8mm).
Applicant states, the present invention illustrates processing method of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned processing step, does not namely mean that the present invention must rely on above-mentioned processing step and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of raw material selected by the present invention, all drops within protection scope of the present invention and open scope.
Claims (10)
1. a preparation method for closed-cell foam halogen-free flameproof PP material, is characterized in that, the raw materials by weight of described method comprises following component:
Closed-cell foam agent 8 ~ 13wt%
PP particle 50 ~ 61wt%
Halogen-free flame retardants 30 ~ 35wt%
Gac and/or honeybee coal 1 ~ 5wt%
The mass percent sum of described raw material is 100wt%;
Described method comprises the steps:
(1) mix PP particle, halogen-free flame retardants, one-level is blended;
(2) add halogen-free flame retardants and gac and/or honeybee coal, secondary is blended, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, heat up, carry out half plasticizing;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
2. the method for claim 1, is characterized in that, the particle diameter of described PP particle is 50nm ~ 100 μm, preferred 70nm ~ 10 μm, further preferred 100nm ~ 5 μm.
3. method as claimed in claim 1 or 2, is characterized in that, described closed-cell foam agent is selected from the combination of any a kind or at least 2 kinds in azo-compound, sulfonyl hydrazines compound or nitroso compound;
Preferably, described closed-cell foam agent is selected from Azodicarbonamide, diisopropyl azodiformate, Diisopropyl azodicarboxylate, N, N'-dinitrosopentamethlyene tetramine, p-toluene sulfonyl hydrazide, phenylSulphon hydrazine, right, to the combination of any a kind or at least 2 kinds in the acid of phenylbenzene sulfonyl hydrazide, preferred Diisopropyl azodicarboxylate.
4. the method as described in one of claims 1 to 3, is characterized in that, described halogen-free flame retardants comprises nitrogenated flame retardant and/or phosphorus flame retardant; Described nitrogenated flame retardant is preferably trimeric cyanamide.
5. the method as described in one of Claims 1 to 4, is characterized in that, described phosphorus flame retardant is selected from the combination of any a kind or at least 2 kinds in phosphoric acid ester, phosphorous acid ester, organophosphate, preferred polyphosphoric acid amine and/or Tritolyl Phosphate.
6. the method as described in one of Claims 1 to 5, is characterized in that, the blended stirring velocity of described one-level is 10rpm, and the blended stirring velocity of secondary is 50rpm, and three grades of blended stirring velocitys are 100rpm.
7. the method as described in one of claim 1 ~ 6, is characterized in that, the particle diameter of described gac and/or honeybee coal is 50nm ~ 100 μm, preferred 70nm ~ 10 μm, further preferred 100nm ~ 5 μm.
8. the method as described in one of claim 1 ~ 7, is characterized in that, described half plasticization temperature is 115 ~ 135 DEG C, and the time is 3 ~ 6min; Preferable temperature is 130 DEG C, and the time is 5min.
9. the method as described in one of claim 1 ~ 8, is characterized in that, the raw materials by weight of described method comprises following component:
Closed-cell foam agent 10wt%
PP particle 55wt%
Halogen-free flame retardants 33wt%
Gac and/or honeybee coal 2wt%
Described method comprises the steps:
(1) mix PP particle, halogen-free flame retardants, one-level is blended;
(2) add halogen-free flame retardants and gac and/or honeybee coal, secondary is blended, obtains feedstock composition after mixing;
(3) feedstock composition is proceeded three grades blended, be warming up to 130 DEG C, carry out half plasticizing 5min;
(4) Screw Extrusion subsequently, obtains closed-cell foam halogen-free flameproof PP material.
10. a closed-cell foam halogen-free flameproof PP material, is characterized in that, described closed-cell foam halogen-free flameproof PP material is obtained by the preparation method one of claim 1 ~ 9 Suo Shu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955885.5A CN105440445A (en) | 2015-12-17 | 2015-12-17 | Closed cell foamed halogen-free flame-retardant PP material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955885.5A CN105440445A (en) | 2015-12-17 | 2015-12-17 | Closed cell foamed halogen-free flame-retardant PP material and preparation method thereof |
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| CN105440445A true CN105440445A (en) | 2016-03-30 |
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| CN201510955885.5A Pending CN105440445A (en) | 2015-12-17 | 2015-12-17 | Closed cell foamed halogen-free flame-retardant PP material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807707A (en) * | 2012-08-12 | 2012-12-05 | 深圳市沃尔核材股份有限公司 | Halogen-free flame-retarded polypropylene foam and preparation method thereof |
| CN103589072A (en) * | 2013-10-24 | 2014-02-19 | 合肥会通新材料有限公司 | Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof |
-
2015
- 2015-12-17 CN CN201510955885.5A patent/CN105440445A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807707A (en) * | 2012-08-12 | 2012-12-05 | 深圳市沃尔核材股份有限公司 | Halogen-free flame-retarded polypropylene foam and preparation method thereof |
| CN103589072A (en) * | 2013-10-24 | 2014-02-19 | 合肥会通新材料有限公司 | Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨中文 编著: "《实用塑料测试技术》", 31 January 2011, 印刷工业出版社 * |
| 汤伯森 等 著: "《包装动力学》", 31 August 2001, 湖南大学出版社 * |
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Application publication date: 20160330 |
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