CN106928674A - The BMC and preparation method of a kind of application magnesium flame retardant - Google Patents
The BMC and preparation method of a kind of application magnesium flame retardant Download PDFInfo
- Publication number
- CN106928674A CN106928674A CN201511003994.3A CN201511003994A CN106928674A CN 106928674 A CN106928674 A CN 106928674A CN 201511003994 A CN201511003994 A CN 201511003994A CN 106928674 A CN106928674 A CN 106928674A
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- Prior art keywords
- bmc
- flame retardant
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- magnesium flame
- polyester resin
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
-
- 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
Abstract
The invention belongs to flame-resistant insulation field of material technology, it is related to the BMC and preparation method of a kind of application magnesium flame retardant.The proportioning of raw material components is：50~80 parts of unsaturated polyester resin, 20~40 parts of low shrinkage additive, 1~5 part of initiator, polymerization inhibitor 0.1-1 parts, 0.1~5 part of curing agent, 1~2 part of releasing agent, 0.1~2 part of thickener, 80~120 parts of fire retardant, 60~120 parts of glass fibre.BMC prepared by the method for the present invention, with excellent electrical properties under excellent normality and hot lower mechanical strength, hygrothermal environment, not only solves use problem of the magnesium flame retardant in unsaturated polyester (UP), good flame retardation effect, halogen-free environmental.
Description
Technical field
The invention belongs to flame-resistant insulation field of material technology, it is related to a kind of bulk of application magnesium flame retardant to mold
Material (BMC) and preparation method.
Background technology
The abbreviation of BMC Bulk moiding compounds, i.e. BMC, the country is commonly referred to as not
Saturated polyester BMC.It is mainly by unsaturated polyester resin (UPR), low shrinkage additive, initiation
One kind that agent, mineral filler, chopped strand, chemical thickening agent and correlation function auxiliary agent are kneaded through physics
Thermosets.Unsaturated polyester (UP) (UPR) is by saturation dihydroxylic alcohols and unsaturated (can have fractional saturation) binary
The polymer of sour (or acid anhydrides) polycondensation, it has the characteristic of typical ester bond and unsaturated double-bond.Due to tree
Contain unsaturated double-bond in fat strand, therefore can be with double bond containing monomer, such as styrene, methylbenzene second
Alkene etc. is copolymerized generation 3-D solid structure, forms insoluble insoluble thermosetting plastics.Extensive use
In processing electric components, auto parts and components, stereo set housing etc..
However, the raw material of synthesis UPR is mostly petrochemicals, and the oxygen index (OI) of UPR is only 19, this
It is its inflammable main cause.Flammable properties make it have fire often in application, are made to life and property
Into massive losses, therefore prepare aobvious particularly urgent of the UPR of high-fire-resistance.At present, it is flame-retardant modified to have two
Bar approach, one is that fire retardant is added during UPR product moldings, belongs to physical method；Another kind is with containing
The Material synthesis UPR of ignition-proof element, belongs to chemical method.
In order to prepare flame retardant type BMC, can adulterate a certain amount of flame-retardant additive in BMC, such as halogen system resistance
Combustion agent, organic phosphorus flame retardant and inorganic combustion inhibitor etc..As CN201210399675 discloses a kind of flame retardant type
The preparation method of unsaturated polyester resin, there is provided a kind of method of synthesizing polyester resin, the fire retardant of use
It is decabromodiphenyl oxide.According to statistics, current fire retardant using it is most be decabromodiphenyl oxide.
Although halogen system (especially bromine system), phosphorus flame retardant also can as the fire retardant of unsaturated polyester resin,
But practical application is relatively costly, and Environmental security hidden danger is brought, therefore be increasingly restricted.Therefore it is necessary
The use of current halogen flame is reduced, is substituted using the technical scheme of halogen-free flameproof, meet unsaturated poly-
The higher and higher requirement of ester articles.Inorganic magnesium hydroxide, aluminium hydroxide are used as environmentally friendly inorganic combustion inhibitor
The features such as with multiple fire-retardant, LSZH, extensive concern is obtained.
Magnesium hydroxide as disclosed in CN101270216A is intended only as the use of thickener, does not play it
Fire retardation.And magnesium flame retardant addition is high, and influence the mechanical property and processing fluidity of composite.
The content of the invention
To solve the above problems, BMC and preparation the invention provides a kind of application magnesium flame retardant
Method, solves the technical barrier that magnesium flame retardant is used in unsaturated polyester (UP).
The technical scheme of use of the invention is：
A kind of BMC of application magnesium flame retardant, the score ratio by weight of its feed components is：No
50~80 parts of saturated polyester resin, 20~40 parts of low shrinkage additive, 1~5 part of initiator, polymerization inhibitor 0.1-1
Part, 0.1~5 part of curing agent, 1~2 part of releasing agent, 0.1~2 part of thickener, 80~120 parts of fire retardant,
60~120 parts of glass fibre.
Further feature, the preferred neighbour's benzene-type of described unsaturated polyester resin, the insatiable hunger of metaphenylene, asphalt mixtures modified by epoxy resin
Fat and polyester resin or one or more of vinyl unsaturated polyester resin.
Further feature, described low shrinkage additive is polyethylene, polystyrene, styrene, poly-vinegar acid
One kind or any several mixtures in ethene, polymethyl methacrylate.
Further feature, described initiator is ketone peroxide, peroxyester, hydrocarbon peroxide, peroxide
Change ketal, hydrogen peroxide carbonic ester one or more.
Further feature, described polymerization inhibitor is the one kind or mixture in hindered phenol, hindered amine.
Further feature, described curing agent is one kind or mixture in organic hydrazides class, dicyandiamide.
Further feature, described releasing agent is in hydroquinones, 1,4-benzoquinone, zinc stearate or calcium stearate
One or more mixtures.
Further feature, described thickener is magnesia.
Further feature, described glass fibre is alkali-free glass fibre or the short fiber/glass fiber of middle alkali, glass
Length is 1~24mm.
Further feature, described fire retardant is modified magnesium hydroxide, and the modifying agent of modification is from even
Connection agent compounding thinner, preferred coupling agent be containing phenyl ring, ethylene linkage, amido functional group silane, preferably
Thinner is polyester type ultra-dispersant agent class or polyether-type oil-soluble dispersant class.
The preparation method of above-mentioned BMC is：
(1) by each component unsaturated polyester resin, low shrinkage additive, initiator, polymerization inhibitor, curing agent,
Releasing agent, carry out mixed at high speed 10~30 minutes by metering；(2) twin shaft is added through the component after mixed at high speed
Type kneader device, sequentially adds fire retardant, thickener, glass fibre and mediates mixing, incorporation time 10~20
Minute, wherein mixing temperature is less than 60 DEG C；(3) using extrusion mechanism into strips, individually wrapped with plastic sheeting
Wrap up in.
BMC of the invention, with electrical under excellent normality and hot lower mechanical strength, hygrothermal environment
Can be excellent, not only solve use problem of the magnesium flame retardant in unsaturated polyester (UP), good flame retardation effect, Halogen
Environmental protection.
Specific embodiment
Describe specific embodiment of the invention in detail below in conjunction with technical scheme.
Embodiment 1：By 50 parts of each component unsaturated polyester resin, 30 parts of low shrinkage additive, initiator
2.5 parts, 0.1 part of polymerization inhibitor, 0.2 part of curing agent, releasing agent 1.5, carry out mixed at high speed 10~30 by metering
Minute；Biaxial type kneader device is added through the component after mixed at high speed, 80 parts of fire retardant, thickening is sequentially added
0.15 part of agent, 60 parts of glass fibre are mediated and mixed, incorporation time 10~20 minutes, and wherein mixing temperature is less than
60℃；Using extrusion mechanism into strips, it is individually wrapped with plastic sheeting.
Embodiment 2：By 55 parts of each component unsaturated polyester resin, 40 parts of low shrinkage additive, initiator
2.5 parts, 0.5 part of polymerization inhibitor, 0.2 part of curing agent, releasing agent 1.5, carry out mixed at high speed 10~30 by metering
Minute；Biaxial type kneader device is added through the component after mixed at high speed, 100 parts of fire retardant is sequentially added, is increased
Thick dose 0.1 part, 70 parts of kneading mixing of glass fibre, incorporation time 10~20 minutes, wherein mixing temperature is small
In 60 DEG C；Using extrusion mechanism into strips, it is individually wrapped with plastic sheeting.
Embodiment 3：By 60 parts of each component unsaturated polyester resin, 40 parts of low shrinkage additive, initiator
2.5 parts, 1 part of polymerization inhibitor, 0.2 part of curing agent, releasing agent 1.5,10~30 points of mixed at high speed is carried out by metering
Clock；Biaxial type kneader device is added through the component after mixed at high speed, 110 parts of fire retardant, thickening is sequentially added
0.1 part of agent, 80 parts of glass fibre are mediated and mixed, incorporation time 10~20 minutes, and wherein mixing temperature is less than
60℃；Using extrusion mechanism into strips, it is individually wrapped with plastic sheeting.
Following table is three formula tables of embodiment：
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Unsaturated polyester resin | 50 | 55 | 60 |
| Low shrinkage additive | 30 | 40 | 40 |
| Initiator | 2.5 | 2.5 | 2.5 |
| Polymerization inhibitor | 0.1 | 0.5 | 1 |
| Curing agent | 0.2 | 0.2 | 0.2 |
| Releasing agent | 1.5 | 1.5 | 1.5 |
| Thickener | 0.15 | 0.1 | 0.1 |
| Fire retardant | 50 | 60 | 70 |
| Glass fibre | 80 | 100 | 110 |
The BMC BMC for obtaining is had a fling at, mechanical strength has been carried out, electrical strength under normality, oxygen index (OI)
With combustible evaluation, specific evaluation result see the table below：
Claims (10)
1. a kind of BMC of application magnesium flame retardant, it is characterised in that the score ratio by weight of feed components
For：50~80 parts of unsaturated polyester resin, 20~40 parts of low shrinkage additive, 1~5 part of initiator, resistance
Poly- agent 0.1-1 parts, 0.1~5 part of curing agent, 1~2 part of releasing agent, 0.1~2 part of thickener, glass fibre
60~120 parts.
2. the BMC of a kind of application magnesium flame retardant according to claim 1, it is characterised in that described
The preferred neighbour's benzene-type of unsaturated polyester resin, the insatiable hunger of metaphenylene, epoxy resin and polyester resin or vinyl
One or more of unsaturated polyester resin.
3. the BMC of a kind of application magnesium flame retardant according to claim 1 and 2, it is characterised in that
Described low shrinkage additive is polyethylene, polystyrene, styrene, polyvinyl acetate, polymethyl
One kind or any several mixtures in sour methyl esters.
4. the BMC of a kind of application magnesium flame retardant according to claim 3, it is characterised in that described
Initiator be ketone peroxide, peroxyester, hydrocarbon peroxide, ketal peroxide, hydrogen peroxide carbonic acid
One or more of ester.
5. a kind of BMC of the application magnesium flame retardant according to claim 1,2 or 4, its feature exists
In described curing agent is one kind or mixture in organic hydrazides class, dicyandiamide.
6. the BMC of a kind of application magnesium flame retardant according to claim 5, it is characterised in that described
Releasing agent be one or more mixtures in hydroquinones, 1,4-benzoquinone, zinc stearate or calcium stearate.
7. a kind of magnesium flame retardant for being applied to BMC according to claim 1,2,4 or 6, it is special
Levy and be, described thickener is magnesia.
8. the BMC of a kind of application magnesium flame retardant according to claim 7, it is characterised in that described
Glass fibre be alkali-free glass fibre or the short fiber/glass fiber of middle alkali, Length of Glass Fiber be 1~24mm.
9. the BMC of a kind of application magnesium flame retardant according to claim 8, it is characterised in that described
Polymerization inhibitor be the one kind or mixture in hindered phenol, hindered amine.
10. any a kind of preparation methods of the BMC of application magnesium flame retardant of claim 1-9, it is special
Levy and be,
(1) by each component unsaturated polyester resin, low shrinkage additive, initiator, polymerization inhibitor, curing agent,
Releasing agent, carry out mixed at high speed 10~30 minutes by metering；
(2) through after mixed at high speed component add biaxial type kneader device, sequentially add fire retardant, thickener,
Glass fibre mediates mixing, and incorporation time 10~20 minutes, wherein mixing temperature are less than 60 DEG C；
(3) using extrusion mechanism into strips, it is individually wrapped with plastic sheeting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003994.3A CN106928674A (en) | 2015-12-29 | 2015-12-29 | The BMC and preparation method of a kind of application magnesium flame retardant |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201511003994.3A CN106928674A (en) | 2015-12-29 | 2015-12-29 | The BMC and preparation method of a kind of application magnesium flame retardant |
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| CN106928674A true CN106928674A (en) | 2017-07-07 |
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| CN201511003994.3A Pending CN106928674A (en) | 2015-12-29 | 2015-12-29 | The BMC and preparation method of a kind of application magnesium flame retardant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587127A (en) * | 2018-05-14 | 2018-09-28 | 安徽大学 | A kind of halogen-free flame-retardant high tenacity tubular molding compound and preparation method thereof |
| CN110016235A (en) * | 2019-01-15 | 2019-07-16 | 南京华格电汽塑业有限公司 | A kind of anti-flaming glass fiber reinforced plastics antenna house profile and preparation method thereof |
| CN114381106A (en) * | 2021-12-15 | 2022-04-22 | 中山金春科技有限公司 | High-temperature-resistant high-strength BMC material and application thereof |
| CN115678234A (en) * | 2022-11-15 | 2023-02-03 | 浙江万兴新材料有限公司 | BMC composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709141A (en) * | 2009-11-24 | 2010-05-19 | 河南省电力公司南阳供电公司 | Formula and preparation method of unsaturated polyester resin bulk molding compound (BMC) |
-
2015
- 2015-12-29 CN CN201511003994.3A patent/CN106928674A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709141A (en) * | 2009-11-24 | 2010-05-19 | 河南省电力公司南阳供电公司 | Formula and preparation method of unsaturated polyester resin bulk molding compound (BMC) |
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| 于永忠: "《阻燃材料手册》", 30 June 1991, 群众出版社 * |
| 唐皓等: "氢氧化镁与氢氧化铝阻燃剂对不饱和聚酯树脂阻燃性能影响的研究", 《消防技术与产品信息》 * |
| 徐应麟: "《高聚物材料的实用阻燃技术》", 31 October 1987, 化学工业出版社 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587127A (en) * | 2018-05-14 | 2018-09-28 | 安徽大学 | A kind of halogen-free flame-retardant high tenacity tubular molding compound and preparation method thereof |
| CN110016235A (en) * | 2019-01-15 | 2019-07-16 | 南京华格电汽塑业有限公司 | A kind of anti-flaming glass fiber reinforced plastics antenna house profile and preparation method thereof |
| CN114381106A (en) * | 2021-12-15 | 2022-04-22 | 中山金春科技有限公司 | High-temperature-resistant high-strength BMC material and application thereof |
| CN115678234A (en) * | 2022-11-15 | 2023-02-03 | 浙江万兴新材料有限公司 | BMC composite material and preparation method thereof |
| CN115678234B (en) * | 2022-11-15 | 2023-09-26 | 浙江万兴新材料有限公司 | BMC composite material and preparation method thereof |
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Application publication date: 20170707 |