CN102993659A - Preparation method of halogen-free flame-retardant unsaturated polyester molding material - Google Patents
Preparation method of halogen-free flame-retardant unsaturated polyester molding material Download PDFInfo
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- CN102993659A CN102993659A CN2012103002832A CN201210300283A CN102993659A CN 102993659 A CN102993659 A CN 102993659A CN 2012103002832 A CN2012103002832 A CN 2012103002832A CN 201210300283 A CN201210300283 A CN 201210300283A CN 102993659 A CN102993659 A CN 102993659A
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Abstract
The invention discloses a preparation method of a halogen-free flame-retardant unsaturated polyester molding material, and belongs to the technical field of preparation of thermosetting molding materials. The preparation method comprises the following steps of: firstly putting unsaturated polyester resin and a low-shrinkage additive weighed according to the weight parts into a beating machine for fast stirring; then adding an initiator, a polymerization inhibitor and a thickening agent weighed according to the weight parts, stirring continuously, then transferring the materials into a kneading machine for kneading; then adding filler, a flame retardant agent, metal oxide and a mold release agent, then kneading; and finally adding reinforced fiber weighed according to the weight parts, and kneading to obtain the halogen-free flame-retardant unsaturated polyester molding material. The halogen-free flame-retardant unsaturated polyester molding material has the characteristics of good strength, low shrinkage and excellent electric property; and by test, the bending strength is 90MPa, the impact strength is 30KJ/M<2>, the shrinking rate is less than 0.15%, the resistance is 1 multiplied by 1013omega, the electric strength is 12.0MV/m, the dielectric dissipation factor is 0.015, the arc resistance is 180S, and the electric-leakage-resistant tracking index is 600V, and the vertical burning is (UL-94-V-03mm) V-0.
Description
Technical field
The invention belongs to the duroplastic moulding materials preparing technical field, be specifically related to a kind of preparation method of unsaturated polyester die plastic of halogen-free flameproof
Background technology
Unsaturated polyester die plastic has the specific tenacity height, good electrical property, and the advantage such as forming process is easy is widely used by people.Along with thereby unsaturated polyester die plastic constantly is used for the daily electrical home appliance device so that more and more higher to the environmental requirement of saturated polyester goods, Halogen is wherein important requirement, because the burning of Halogen product can not produce thick smoke, can be when presence of fire, for the rescue worker tries to gain time precious to one.Therefore, the inventor proposes a kind of preparation method of unsaturated polyester die plastic of halogen-free flameproof through a large amount of experiments
Summary of the invention
Task of the present invention is to provide a kind of preparation method of unsaturated polyester die plastic of halogen-free flameproof, and it is good and shrink low strong point that the unsaturated polyester die plastic of the halogen-free flameproof that is obtained by the method has intensity.
Task of the present invention is finished like this, a kind of preparation method of unsaturated polyester die plastic of halogen-free flameproof, it is rapid stirring 3-8min in 36 ~ 41 parts of the unsaturated polyester resins that will take by weighing by weight first and 24 ~ 28.6 parts of input hollanders of low shrinkage additive, add again 0.6 ~ 1.1 part of the initiator take by weighing by weight, 0.16 ~ 0.5 part of 0.006 ~ 0.01 part of stopper and thickening material, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then add again 100 ~ 140 parts of the fillers that take by weighing by weight, 5 ~ 10 parts of fire retardants, 2.4 ~ 3.2 parts of 6 ~ 9 parts of metal oxides and releasing agents, then mediate 40-50min, add at last 26 ~ 34 parts of fortifying fibres that take by weighing by weight and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
In a specific embodiment of the present invention, described unsaturated polyester resin is the insatiable hunger of adjacent benzene type or vibrin or metaphenylene unsaturated polyester resin, and its resin solid content is 60 ~ 65%.
In another specific embodiment of the present invention, described low shrinkage additive is polymethylmethacrylate type low shrinkage additive, and the solid content of low shrinkage additive is 38 ~ 40%.
In another specific embodiment of the present invention, described initiator is 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexane, and described stopper is the Pyrogentisinic Acid.
In another specific embodiment of the present invention, described thickening material is magnesium oxide.
Also have in the specific embodiment of the present invention, described filler is mineral filler, and mineral filler is aluminium hydroxide.
More of the present invention and in specific embodiment, described fire retardant is melamine phosphate or trimeric cyanamide urate.
In of the present invention and then specific embodiment, described metal oxide is antimonous oxide or zinc borate.
Of the present invention again more and in specific embodiment, described releasing agent is Zinic stearas, calcium stearate or Magnesium Stearate.
In again of the present invention and then specific embodiment, described fortifying fibre is alkali free glass fibre.
The unsaturated polyester die plastic of the halogen-free flameproof that the inventive method obtains has the advantages that intensity is good, contraction is low, electrical property is excellent.Can be applicable to the products such as switch, daily-use electrical appliance shell.Through test, flexural strength 90MPa, shock strength (non-notch) 30KJ/m
2
, shrinking percentage is less than 0.15%, resistance 1 * 10
13
Ω, electrical strength 12.0MV/m, dielectric dissipation factor 0.015, the 180S of anti-electric arc, anti creepage trace index 600V vertical combustion (UL-94-V-0 3mm) V-0.
Embodiment
Embodiment 1:
The resin solid content that will take by weighing by weight first is that 60 ~ 65% adjacent benzene type insatiable hunger or 36 parts in vibrin and solid content are that 26 parts of 38 ~ 40% polymethylmethacrylate type low shrinkage additives are put into rapid stirring 3-8min in the hollander, adding the initiator that takes by weighing by weight again is 0.9 part of 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexane, stopper is that 0.006 part of Pyrogentisinic Acid and thickening material are 0.5 part in magnesium oxide, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then dropping into the filler that takes by weighing by weight again is that mineral filler also is 120 parts in aluminium hydroxide, fire retardant is 5 parts of melamine phosphates, metal oxide is that 6 parts of antimonous oxides and releasing agent are 3.2 parts of Zinic stearass, then mediate 40-50min, 26 parts of the alkali free glass fibres that at last adding takes by weighing by weight, and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
Embodiment 2:
The resin solid content that will take by weighing by weight first is that 60 ~ 65% metaphenylene insatiable hunger or 41 parts in vibrin and solid content are that 24 parts of 38 ~ 40% polymethylmethacrylate type low shrinkage additives are put into rapid stirring 3-8min in the hollander, adding the initiator that takes by weighing by weight again is 0.7 part of 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexane, stopper is that 0.008 part of Pyrogentisinic Acid and thickening material are 0.16 part in magnesium oxide, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then dropping into the filler that takes by weighing by weight again is that mineral filler also is 140 parts in aluminium hydroxide, fire retardant is 8 parts of trimeric cyanamide urates, metal oxide is that 9 parts of zinc borates and releasing agent are 2.4 parts of calcium stearates, then mediate 40-50min, 34 parts of the alkali free glass fibres that at last adding takes by weighing by weight, and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
Embodiment 3:
The resin solid content that will take by weighing by weight first is that 60 ~ 65% adjacent benzene type insatiable hunger or 38 parts in vibrin and solid content are that 28.6 parts of 38 ~ 40% polymethylmethacrylate type low shrinkage additives are put into rapid stirring 3-8min in the hollander, adding the initiator that takes by weighing by weight again is 0.6 part of 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexane, stopper is that 0.01 part of Pyrogentisinic Acid and thickening material are 0.25 part in magnesium oxide, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then dropping into the filler that takes by weighing by weight again is that mineral filler also is 130 parts in aluminium hydroxide, fire retardant is 6 parts of melamine phosphates, metal oxide is that 7 parts of antimonous oxides and releasing agent are 3 parts of Magnesium Stearates, then mediate 40-50min, 30 parts of the alkali free glass fibres that at last adding takes by weighing by weight, and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
Embodiment 4:
The resin solid content that will take by weighing by weight first is that 60 ~ 65% adjacent benzene type insatiable hunger or 37 parts in vibrin and solid content are that 27 parts of 38 ~ 40% polymethylmethacrylate type low shrinkage additives are put into rapid stirring 3-8min in the hollander, adding the initiator that takes by weighing by weight again is 1.1 parts of 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexanes, stopper is that 0.009 part of Pyrogentisinic Acid and thickening material are 0.35 part in magnesium oxide, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then dropping into the filler that takes by weighing by weight again is that mineral filler also is 125 parts in aluminium hydroxide, fire retardant is 10 parts of melamine phosphates, metal oxide is that 8 parts of antimonous oxides and releasing agent are 2.8 parts of Zinic stearass, then mediate 40-50min, 28 parts of the alkali free glass fibres that at last adding takes by weighing by weight, and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
Unsaturated polyester die plastic by the resulting halogen-free flameproof of above-described embodiment 1-4 has the technique effect shown in the following table after tested.
。
Claims (10)
1.
A kind of preparation method of unsaturated polyester die plastic of halogen-free flameproof, it is characterized in that it is rapid stirring 3-8min in 36 ~ 41 parts of the unsaturated polyester resins that will take by weighing by weight first and 24 ~ 28.6 parts of input hollanders of low shrinkage additive, add again 0.6 ~ 1.1 part of the initiator take by weighing by weight, 0.16 ~ 0.5 part of 0.006 ~ 0.01 part of stopper and thickening material, continue to stir 40-60min, then change over to kneader and mediate 4-8min, then add again 100 ~ 140 parts of the fillers that take by weighing by weight, 5 ~ 10 parts of fire retardants, 2.4 ~ 3.2 parts of 6 ~ 9 parts of metal oxides and releasing agents, then mediate 40-50min, add at last 26 ~ 34 parts of fortifying fibres that take by weighing by weight and mediate 5-10min, obtain the unsaturated polyester die plastic of halogen-free flameproof.
2.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described unsaturated polyester resin is the insatiable hunger of adjacent benzene type or vibrin or metaphenylene unsaturated polyester resin, and its resin solid content is 60 ~ 65%.
3.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described low shrinkage additive is polymethylmethacrylate type low shrinkage additive, and the solid content of low shrinkage additive is 38 ~ 40%.
4.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described initiator is 2.5-dimethyl-2.5-two (tert-butyl peroxide) hexane, and described stopper is the Pyrogentisinic Acid.
5.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described thickening material is magnesium oxide.
6.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described filler is mineral filler, and mineral filler is aluminium hydroxide.
7.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described fire retardant is melamine phosphate or trimeric cyanamide urate.
8.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described metal oxide is antimonous oxide or zinc borate.
9.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described releasing agent is Zinic stearas, calcium stearate or Magnesium Stearate.
10.
The preparation method of the unsaturated polyester die plastic of halogen-free flameproof according to claim 1 is characterized in that described fortifying fibre is alkali free glass fibre
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| CN2012103002832A CN102993659A (en) | 2012-08-22 | 2012-08-22 | Preparation method of halogen-free flame-retardant unsaturated polyester molding material |
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| CN2012103002832A CN102993659A (en) | 2012-08-22 | 2012-08-22 | Preparation method of halogen-free flame-retardant unsaturated polyester molding material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524975A (en) * | 2013-10-28 | 2014-01-22 | 北京福润德复合材料有限责任公司 | Halogen-free flame-retardant highly-heat-resistant unsaturated polyester glass fiber composite material |
| CN107083037A (en) * | 2017-05-14 | 2017-08-22 | 南通德瑞森复合材料有限公司 | A kind of glass fibre reinforced plastics molded preparation method for material of novel halogen-free flame-retardant |
| CN108559297A (en) * | 2018-05-15 | 2018-09-21 | 江苏兆鋆新材料股份有限公司 | A kind of suppression cigarette saturated resin composite material and preparation method |
| CN109554002A (en) * | 2018-12-06 | 2019-04-02 | 宁国中奕橡塑有限公司 | A kind of compressor terminal cover of high-strength high temperature-resistant and preparation method thereof |
| CN109627801A (en) * | 2018-12-06 | 2019-04-16 | 宁国中奕橡塑有限公司 | A kind of same with thermosetting compound material of high-strength high temperature-resistant and preparation method thereof |
| CN114957951A (en) * | 2022-05-20 | 2022-08-30 | 武汉中仪物联技术股份有限公司 | Photocuring material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343407A (en) * | 2008-08-22 | 2009-01-14 | 常熟东南塑料有限公司 | Halogen-free flame-proof unsaturated polyester molding compound |
-
2012
- 2012-08-22 CN CN2012103002832A patent/CN102993659A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343407A (en) * | 2008-08-22 | 2009-01-14 | 常熟东南塑料有限公司 | Halogen-free flame-proof unsaturated polyester molding compound |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524975A (en) * | 2013-10-28 | 2014-01-22 | 北京福润德复合材料有限责任公司 | Halogen-free flame-retardant highly-heat-resistant unsaturated polyester glass fiber composite material |
| CN103524975B (en) * | 2013-10-28 | 2016-06-22 | 北京福润德复合材料有限责任公司 | A kind of halogen-free flameproof height heat resisting unsaturated polyester glass fiber compound material |
| CN107083037A (en) * | 2017-05-14 | 2017-08-22 | 南通德瑞森复合材料有限公司 | A kind of glass fibre reinforced plastics molded preparation method for material of novel halogen-free flame-retardant |
| CN108559297A (en) * | 2018-05-15 | 2018-09-21 | 江苏兆鋆新材料股份有限公司 | A kind of suppression cigarette saturated resin composite material and preparation method |
| CN109554002A (en) * | 2018-12-06 | 2019-04-02 | 宁国中奕橡塑有限公司 | A kind of compressor terminal cover of high-strength high temperature-resistant and preparation method thereof |
| CN109627801A (en) * | 2018-12-06 | 2019-04-16 | 宁国中奕橡塑有限公司 | A kind of same with thermosetting compound material of high-strength high temperature-resistant and preparation method thereof |
| CN114957951A (en) * | 2022-05-20 | 2022-08-30 | 武汉中仪物联技术股份有限公司 | Photocuring material and preparation method and application thereof |
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Application publication date: 20130327 |