CN1323113C - High-performance melamine-phenol-formaldehyde molding compound - Google Patents

High-performance melamine-phenol-formaldehyde molding compound Download PDF

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Publication number
CN1323113C
CN1323113C CNB2004100932144A CN200410093214A CN1323113C CN 1323113 C CN1323113 C CN 1323113C CN B2004100932144 A CNB2004100932144 A CN B2004100932144A CN 200410093214 A CN200410093214 A CN 200410093214A CN 1323113 C CN1323113 C CN 1323113C
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China
Prior art keywords
phenol
melamine
molding compound
formaldehyde
performance
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CNB2004100932144A
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CN1789327A (en
Inventor
杨玮
殷荣忠
朱永茂
刘勇
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Shanghai Eurasian Synthetic Materials Co ltd
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OUYA COMPOSITE MATERIAL CO Ltd SHANGHAI
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Abstract

The present invention provides an injection type melamine-phenol-methanal (MP) molding material which is prepared by adopting a composite crosslinking and solidifying system, melamine-phenol-methanal copolymer resin or a blending object of melamine-methanal resin/phenol-methanal resin is used as base body resin, inorganic fiber and organic fiber are used as reinforcing agents, and inorganic minerals are used as fillers. The material has high heat distortion temperature (190 DEG C), a high comparative proof tracking index (CTI)(600V) and good arc resistance (180 seconds) and flame resistance (UL94V to 0@0.8mm), and can be widely used for various insulation structure pieces of low-voltage electric appliances, relays, sockets, arc extinguishing covers, temperature control electric appliances and wire connecting terminals of air conditioners.

Description

A kind of high-performance melamine-phenol-formaldehyde molding compound
Technical field
The present invention relates to a kind of special engineering plastics, relate in particular to the high-performance melamine-phenol-formaldehyde molding compound of a kind of phenol-modified carbamide or cyanurotriamide modified P-F, this plastics can be called for short MP moulding compound or MPF moulding compound.
Background technology
Phenolaldehyde moulding compound, particularly mineral filler are filled, glass fibre enhanced P-F moulding compound has good resistance to elevated temperatures, but its anti creepage trace and arc resistance can quite be short of.And amino film plastics, particularly carbamide moulding compound have excellent anti creepage trace and arc resistance energy, but its resistance toheat is relatively poor.By trimeric cyanamide is introduced P-F, perhaps phenol is introduced carbamide, comprehensively the two advantage of phenolaldehyde moulding compound and amino film plastics.Trimeric cyanamide is the weakly alkaline material, the lone electron pair of nitrogen-atoms and phenyl ring generation conjugation reaction, make the nitrogen-atoms activation, easily and formaldehyde generation hydroxymethylation, generate various melamine methylols, methylol compound and phenol, formaldehyde carry out polycondensation then, form the phenol piperazine type complex matrix resin with following structure:
Trimeric cyanamide-P-F copolymer resins, or the two blend of melamine formaldehyde resin phenol-formaldehyde resin all has phenol piperazine type structure, all has the two advantage of resol and aminoresin, be good high temperature resistant, anti creepage trace and arc resistance energy, and good flame retardant property.
Though domestic scientific research institutions and manufacturing enterprise carry out this respect research, but it is not enough because of innovating, all do not put into production, therefore be necessary to provide a kind of high performance trimeric cyanamide-P-F (MP) moulding compound, be applied to the adiabatic insulation of all kinds of low-voltage apparatus insulation system spares, rly., socket, cease spark cover, temperature control electric appliance, air-conditioning connection terminal and various color household electrical appliance spare and accessory parts etc.
Summary of the invention
The object of the present invention is to provide a kind of high performance trimeric cyanamide-P-F (MP) moulding compound, have good high temperature resistant, anti creepage trace and arc resistance energy by the plastic component of this material manufacturing, and good flame retardant property.
The object of the present invention is achieved like this, and a kind of high-performance melamine-phenol-formaldehyde (MP) moulding compound comprises following component:
1. the content of matrix resin is 30-60wt%;
2. the content of inorganic reinforcement is 10-50wt%;
3. the content of organic reinforced fiber is 5-30wt%;
4. the content of fire retardant is 3-30wt%;
5. the content of mineral filler is 3-30wt%;
6. the content of solidifying agent is 1-10wt%;
7. the content of curing catalyst is 0-5-5wt%;
8. the content of softening agent is 1-5wt%.
Purpose of the present invention can also realize that so described matrix resin is trimeric cyanamide-P-F copolymer resins, or the blend of melamine formaldehyde resin and phenol-formaldehyde resin, and its more accurate consumption is 35-55 wt%.
Purpose of the present invention can also realize like this, and the consumption part by weight of phenol and trimeric cyanamide is 5-50 when synthetic described trimeric cyanamide-P-F copolymer resins: 100, and more accurate consumption part by weight is 20-40: 100.
Purpose of the present invention can also realize like this, the consumption part by weight of phenol-formaldehyde resin and melamine formaldehyde resin is 5-40 in the blend of described melamine formaldehyde resin and phenol-formaldehyde resin: 100, and more accurate consumption part by weight is 10-20: 100.
Purpose of the present invention can also realize like this, and described inorganic reinforcement is to be selected from glass fibre, the acicular wollastonite fiber one or more, and its more accurate consumption is 25-35wt%.
Purpose of the present invention can also realize like this, and described organic reinforced fiber is to be selected from cotton fibre, flaxen fiber, methylcellulose gum, the xylogen one or more, and its more accurate consumption is 8-20wt%.
Purpose of the present invention can also realize like this, and described fire retardant is to be selected from aluminium hydroxide, zinc borate, the poly-ammonium metaphosphate one or more, and its more accurate consumption is 5-20wt%.
Purpose of the present invention can also realize like this, and described mineral filler is to be selected from talcum powder, mica powder, the lime carbonate one or more, and its more accurate consumption is 8-20wt%.
Purpose of the present invention can also realize like this, and described solidifying agent is to be selected from urotropine, triethylamine, the tosic acid one or more, and its more accurate consumption is 2-8wt%.
Purpose of the present invention can also realize like this, and described curing catalyst is to be selected from magnesium oxide, zinc oxide, the calcium hydroxide one or more, and its more accurate consumption is 2-4wt%.
Purpose of the present invention can also realize like this, and described softening agent is to be selected from stearic acid, Zinic stearas, calcium stearate, ethylene bis stearamide, the silicone emulsion one or more, and its more accurate consumption is 1.5-3.5wt%.
The present invention is a matrix resin with the blend of trimeric cyanamide-P-F copolymer resins or melamine formaldehyde resin and phenol-formaldehyde resin, selecting inorganic fibre and organic fibre for use is toughener, inorganic mineral is a filler, adopt the composite crosslinking curing system to be prepared from, contain phenol piperazine structure in the material.
The heat-drawn wire of the high-performance melamine-phenol-formaldehyde that the present invention obtains (MP) moulding compound is not less than 190 ℃, compare anti creepage trace index (CTI) is not less than 600V, arc resistance and can be not less than 180 seconds, flame retardant properties and reaches UL94V-0@0.8mm, and have good injection processing characteristics.
Embodiment
Below the embodiment of high-performance melamine-phenol-formaldehyde molding compound of the present invention is described.
Embodiment 1-3
Trimeric cyanamide, phenol and formaldehyde are added in the reactor in proportion successively the synthetic trimeric cyanamide-P-F copolymer resins that obtains under the effect of basic catalyst.With trimeric cyanamide-P-F copolymer resins is matrix resin, selects suitable curing system for use, obtains the moulding compound of prescription as shown in table 1.
Table 1
Prescription (wt%)
Component Embodiment 1 Embodiment 2 Embodiment 3
Melamine-P-F copolymer resins (phenol: melamine) glass fibre methylcellulose aluminium hydroxide Firebrake ZB talcum powder mica powder calcium carbonate triethylamine p-methyl benzenesulfonic acid magnesia stearic acid zinc stearate silicone emulsion carbon black 40.5 (20∶100) 28 8 5 2 4 2 2 0.5 3 2 0.5 1.5 0.5 0.5 40.5 (30∶100) 27 9 4 3 3 3 2 0.5 2.5 2.5 0 2 0.5 0.5 40.5 (40∶100) 25 11 3 4 3 2 3 0.5 2 3 0.5 1.5 0.5 0.5
By said ratio each component is mixed, on the plastics twin-roll machine roll-in mixing evenly, cooling in flakes, fragmentation can obtain trimeric cyanamide-P-F (MP) moulding compound on crusher again.The compacting sample is tested its proportion, notched Izod impact strength, flexural strength, heat-drawn wire then, is compared anti creepage trace index (CTI), anti-electric arc, dielectric strength, insulation resistance, flame retardant properties.Test result sees Table 2.
Table 2
Performance Embodiment 1 Embodiment 2 Embodiment 3
Proportion (g/cm 3) notched Izod impact strength (kJ/m 2) bending strength (MPa) heat distortion temperature (℃) compare (V) (MV/m) insulaion resistance (Ω) fire resistance (UL94) of anti-electric arc (second) dielectric strength (90 ℃) of anti creepage trace index (CTI) 1.82 2.0 72 198 600 210 3.8 3.5×10 10 V-0@0.8mm 1.81 2.0 70 196 600 200 3.5 2.4×10 10 V-0@0.8mm 1.78 2.2 78 192 600 185 4.1 5.1×10 10 V-0@0.8mm
Embodiment 4-6
With the two blend of melamine formaldehyde resin/phenol-formaldehyde resin is matrix resin, selects suitable curing system for use, obtains the moulding compound of prescription as shown in table 3:
Table 3
Prescription (wt%)
Component Embodiment 4 Embodiment 5 Embodiment 6
The blend melamine formaldehyde resin phenol-formaldehyde resin glass fibre methylcellulose aluminium hydroxide of melamine formaldehyde resin/phenol-formaldehyde resin gathers ammonium metaphosphate talcum powder mica powder methenamine p-methyl benzenesulfonic acid magnesia stearic acid zinc stearate silicone emulsion carbon black 38 3 30 8 5 2 4 2 0.5 2.5 2 0.5 1.5 0.5 0.5 40 4 28 9 4 2 3 2 0.5 2.5 2 0 2 0.5 0.5 42 5 25 10 3 2 5 0 0.5 2 2.5 0.5 1.5 0.5 0.5
By said ratio each component is mixed, on the plastics twin-roll machine roll-in mixing evenly, cooling in flakes, fragmentation can obtain trimeric cyanamide-P-F (MP) moulding compound on crusher again.The compacting sample is tested its proportion, notched Izod impact strength, flexural strength, heat-drawn wire then, is compared anti creepage trace index (CTI), anti-electric arc, dielectric strength, insulation resistance, flame retardant properties.Test result sees Table 4.
Table 4
Performance Embodiment 4 Embodiment 5 Embodiment 6
Proportion (g/cm 3) notched Izod impact strength (kJ/m 2) bending strength (MPa) heat distortion temperature (℃) compare (V) (MV/m) insulaion resistance (Ω) fire resistance (UL94) of anti-electric arc (second) dielectric strength (90 ℃) of anti creepage trace index (CTI) 1.81 2.1 73 198 600 185 3.4 2.5×10 10 V-0@0.8mm 1.79 2.0 71 198 600 187 3.5 3.4×10 10 V-0@0.8mm 1.77 2.2 75 193 600 184 3.8 4.1×10 10 V-0@0.8mm
From above-mentioned test result as can be seen, the trimeric cyanamide that obtains-P-F moulding compound has good high temperature resistant, anti creepage trace and arc resistance energy, and good flame retardant property, and the injection processing characteristics is good, can reach service requirements.
The foregoing description only is a better embodiment of the present invention, and content of the present invention is not restricted to the described embodiments, and all any modifications done according to aim of the present invention or change are all within protection scope of the present invention.

Claims (20)

1. high-performance melamine-phenol-formaldehyde molding compound, it includes:
The matrix resin of 30-60wt%, described matrix resin are the blends of trimeric cyanamide-P-F copolymer resins or melamine formaldehyde resin and phenol-formaldehyde resin;
The inorganic reinforcement of 10-50wt%;
The organic reinforced fiber of 5-30wt%;
The fire retardant of 3-30wt%;
The mineral filler of 3-30wt%;
The solidifying agent of 1-10wt%;
The curing catalyst of 0.5-5wt%; And
The softening agent of 1-5wt%.
2. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the consumption part by weight of phenol and trimeric cyanamide is 5-50 during synthetic described trimeric cyanamide-P-F copolymer resins: 100.
3. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 2 is characterized in that, the consumption part by weight of phenol and trimeric cyanamide is 20-40 during synthetic described trimeric cyanamide-P-F copolymer resins: 100.
4. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1, it is characterized in that the consumption part by weight of phenol-formaldehyde resin and melamine formaldehyde resin is 5-40 in the blend of described melamine formaldehyde resin and phenol-formaldehyde resin: 100.
5. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 4, it is characterized in that the consumption part by weight of phenol-formaldehyde resin and melamine formaldehyde resin is 10-20 in the blend of described melamine formaldehyde resin and phenol-formaldehyde resin: 100.
6. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described inorganic reinforcement is that to be selected from glass fibre, the acicular wollastonite fiber one or both compound.
7. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described organic reinforced fiber is that to be selected from cotton fibre, flaxen fiber, methylcellulose gum, the xylogen one or more compound.
8. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described fire retardant is that to be selected from aluminium hydroxide, zinc borate, the poly-ammonium metaphosphate one or more compound.
9. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described mineral filler is that to be selected from talcum powder, mica powder, the lime carbonate one or more compound.
10. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described solidifying agent is that to be selected from urotropine, triethylamine, the tosic acid one or more compound.
11. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described curing catalyst is that in magnesium oxide, zinc oxide, the calcium hydroxide one or more are compound.
12. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, described softening agent is to be selected from stearic acid, Zinic stearas, calcium stearate,, in the ethylene bis stearamide, silicone emulsion one or more are compound.
13. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described matrix resin is 35-55wt%.
14. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described inorganic reinforcement is 25-35wt%.
15. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described organic reinforced fiber is 8-20wt%.
16. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described fire retardant is 5-20wt%.
17. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described mineral filler is 8-20wt%.
18. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described solidifying agent is 2-8wt%.
19. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described curing catalyst is 2-4wt%.
20. high-performance melamine-phenol-formaldehyde molding compound as claimed in claim 1 is characterized in that, the content of described softening agent is 1.5-3.5wt%.
CNB2004100932144A 2004-12-17 2004-12-17 High-performance melamine-phenol-formaldehyde molding compound Expired - Fee Related CN1323113C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448698A (en) * 2014-12-22 2015-03-25 沙县宏盛塑料有限公司 Melamine formaldehyde mould plastic and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985903B (en) * 2015-07-31 2017-01-25 北京新福润达绝缘材料有限责任公司 Preparation method for high anti-tracking halogen-free flame-retardant glass-cloth laminate
CN106015412B (en) * 2016-08-12 2018-05-04 颜丽雅 Good ceramic brake of a kind of high-temperature stability and preparation method thereof
CN111548532B (en) * 2020-06-19 2022-06-10 南京林业大学 Biomass intumescent flame retardant, preparation method and special device thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032344A (en) * 1988-07-11 1989-04-12 沈阳市聚氨酯化工研究所 The method for making of aromatic hydrocarbons polyethers rigid polyurethane foam plactics
CN1171122A (en) * 1994-12-23 1998-01-21 巴斯福股份公司 Process for preparing dyed melamine-formaldehyde condensation products
CN1294973A (en) * 1995-09-22 2001-05-16 日立化成工业株式会社 Phenolic resin laminated board using dry oil modified phenolic resin composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032344A (en) * 1988-07-11 1989-04-12 沈阳市聚氨酯化工研究所 The method for making of aromatic hydrocarbons polyethers rigid polyurethane foam plactics
CN1171122A (en) * 1994-12-23 1998-01-21 巴斯福股份公司 Process for preparing dyed melamine-formaldehyde condensation products
CN1294973A (en) * 1995-09-22 2001-05-16 日立化成工业株式会社 Phenolic resin laminated board using dry oil modified phenolic resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448698A (en) * 2014-12-22 2015-03-25 沙县宏盛塑料有限公司 Melamine formaldehyde mould plastic and preparation method thereof
CN104448698B (en) * 2014-12-22 2016-08-17 沙县宏盛塑料有限公司 A kind of melamine formaldehyde molding compound and preparation method thereof

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Address after: 201512 Shanghai Jinshan District jin'ou Road No. 500

Patentee after: Shanghai Eurasian synthetic materials Co.,Ltd.

Address before: 201102 No. 88 Wanyuan Road, Shanghai, Minhang District

Patentee before: SHANGHAI EUROPEAN-ASIAN SYNTHETIC MATERIAL CO.,LTD.

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Granted publication date: 20070627