CN107474507A - Continuously-directional glass fiber strengthens high fire-retardance low water absorption sheet molding compound and preparation method - Google Patents
Continuously-directional glass fiber strengthens high fire-retardance low water absorption sheet molding compound and preparation method Download PDFInfo
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- CN107474507A CN107474507A CN201710683243.3A CN201710683243A CN107474507A CN 107474507 A CN107474507 A CN 107474507A CN 201710683243 A CN201710683243 A CN 201710683243A CN 107474507 A CN107474507 A CN 107474507A
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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
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to a kind of continuously-directional glass fiber enhancing high fire-retardance low water absorption sheet molding compound and preparation method, it belongs to field of compound material.The formula of moulding compound of the present invention includes the material of following mass parts：60 90 parts of unsaturated polyester resin, 10 40 parts of shrinking agent, 0 10 parts of styrene, 100 200 parts of filler, 60 120 parts of glass fibre, 0.5 2.0 parts of initiator, 0 0.1 parts of polymerization inhibitor, 0.5 2.0 parts of thickener, 26 parts of inner pattern releasing agent applicable, 04 parts of processing aid.The present invention is compared to conventional full short glass fiber enhancing sheet molding compound, in the case where not improving glass mass fraction, reinforcing material is used as using continuously-directional glass fiber mating part short glass fiber, significantly improve the mechanical property of material and realize that material flame retardant rating reaches the V0 levels of UL 94, water absorption rate is less than 0.15%, and the preparation method of above-mentioned continuously-directional glass fiber enhancing high fire-retardance low water absorption sheet molding compound is provided.
Description
Technical field
The present invention relates to a kind of moulding compound and preparation method, strengthens high resistant more particularly, to a kind of continuously-directional glass fiber
Low water absorption sheet molding compound and preparation method are fired, it belongs to field of compound material.
Background technology
In recent years, glass fibre reinforced composion has obtained increasingly because of the characteristic of its high-strength light in daily life
It is widely applied.Wherein, sheet molding compound（Sheet Molding Compound, SMC）Technology is again because it can one-shot forming tool
There is the product of complicated fine structure, production efficiency is high, can carry out formula design as needed to obtain possessing the production of particular demands
The characteristics such as product, turn into one of mostly important moulding process of current glass fiber reinforced thermosetting composite.The technology is originating from upper
The Germany of the sixties in century, its contained main chemical compositions generally include unsaturated polyester resin, shrinking agent resin, filled out
Material, glass fibre etc., while it is aided with the auxiliary materials such as initiator, polymerization inhibitor, inner pattern releasing agent applicable, mill base, thickener.By above raw material
Mixed at high speed is carried out in high speed dispersor according to set amount to disperse, so using sheet molding compound production unit by resin paste with
Glass fibre progress of the thickener paste according to setting ratio progress mixture, again with being chopped into length-specific is compound, you can obtains
Sheet " sandwich " structure.
Using the physics chemical action between the carboxyl and hydroxyl and alkali metal oxide in unsaturated polyester resin, " three are somebody's turn to do
Mingzhi " structure forms a kind of solid piece that cuts, can flexibly carry by the curing of 24-96 hours at a certain temperature
Shape thing.After the solid-state tablet is according to ad hoc fashion cutting-up, it is placed in the mold cavity with specific structure, you can in height
Flowing is full of mold cavity under the lower high pressure of temperature, and then crosslinks curing reaction, obtains thermoset solid molded product.Such production
Product are widely used in fields such as track traffic, automobile/train part, electrical appliance, building materials.
In outdoor use field of track traffic, portioned product such as high ferro cable bearer, train exterior panel etc. make because its is special
With condition, very high requirement is proposed to intensity, flame-retarding characteristic and the low water absorbable of material in itself.Relatively low water absorption rate not only may be used
To ensure dimensional stability of the product after different outdoor using times, the hydrolysis complexity of matrix resin is also directly connected to
With the final service life of product.High flame-retardant property then can occur to ensure that related personnel has bigger escape when fire etc. is unexpected
Chance.The mechanical property of product is then directly connected to whether material can use as the structural member for bearing load, also can be
The person and property safety are ensured when generation is unexpected.
Conventional sheet molding compound is generally all strengthened using chopped length 25.4mm glass, therefore its intensity is outstanding
It is that bending is greatly limited with impact strength.If substitute short glass fiber as enhancing using directional glass fiber
Material, it can undoubtedly significantly improve the strength of materials.Simultaneously as the adjustment is not related to the change of glass fiber content, sheet molding compound is prepared
Resin paste viscosity used can maintain higher level, and this is just to assign material high flame-retardant property by largely adding fire-retardant filler
（UL-94 V0 levels）Possibility is provided with low water absorption.
Publication date is on 04 21st, 2010, in Publication No. CN101696320A Chinese patent, discloses a kind of name
A kind of referred to as patent of invention of " continuously-directional glass fiber reinforcement unsaturated polyester sheet molding compound ".The patent provides continuous
Though directional glass fiber reinforcement unsaturated polyester sheet molding compound is strengthened using continuously-directional glass fiber, material system is biased toward
The improvement of standby technique while fire-retardant filler has been used in the preparation, be not directed to the control of material low water absorption performance while hinder
The description of combustion characteristic does not carry out with the flame retardant rating listed in U.S.'s UL-94 standards corresponding yet.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and offer is a kind of reasonable in design,
Short glass fiber is replaced to lift material mechanical performance using continuously-directional glass fiber by all or part of, it is basic herein
The upper flame retardant rating for ensureing material reaches UL-94 V0 levels, at the same the water absorption rate of material can be controlled in less than 0.15% it is continuous fixed
To glass fiber reinforcement high fire-retardance low water absorption sheet molding compound and preparation method.
Technical scheme is used by the present invention solves the above problems：The low suction of continuously-directional glass fiber enhancing high fire-retardance
Water rate sheet molding compound, it is characterised in that：The formula of the sheet molding compound includes the material of following mass parts：Unsaturated polyester (UP)
Resin 60-90 parts, shrinking agent 10-40 parts, styrene 0-10 parts, filler 100-200 parts, glass fibre 60-120 parts, trigger
Agent 0.5-2.0 parts, polymerization inhibitor 0-0.1 parts, thickener 0.5-2.0 parts, inner pattern releasing agent applicable 2-6 parts, processing aid 0-4 parts.
Preferably, unsaturated polyester resin of the present invention is to the one of benzene resin, isophthalic resin or vinylite
Kind or any several mixing.
Preferably, shrinking agent of the present invention is polystyrene, polyethylene micropowder or polymethyl methacrylate
A kind of or any several mixing.
Preferably, one or two kinds of mixing of the filler of the present invention using aluminium hydroxide or calcium carbonate.
Preferably, glass fibre of the present invention is the short fibre of alkali-free continuous glass fibre and the mm of chopped length 25.4
The mixture of dimension, mixed proportion are：1:5-5:1.
Preferably, initiator of the present invention is peroxidized t-butyl perbenzoate（TBPB）, tert-butyl peroxy isobutyl carbonate
Propyl ester（BIC-75）Or peroxidating -2- ethyl acid the tert-butyl esters（TBPO）One kind or any several mixing.
Preferably, polymerization inhibitor of the present invention is 1,4-benzoquinone.
Preferably, inner pattern releasing agent applicable of the present invention is one or two kinds of mixtures of zinc stearate or calcium stearate.
Preferably, thickener of the present invention is one or two kinds of mixtures of magnesia or magnesium hydroxide；Processing
Auxiliary agent is BYK996 or BYK972 one or two kinds of mixtures.
The present invention also provides a kind of preparation side of continuously-directional glass fiber enhancing high fire-retardance low water absorption sheet molding compound
Method, high fire-retardance low water absorption sheet molding compound is strengthened using continuously-directional glass fiber, it is characterised in that：Comprise the following steps：
A, by unsaturated polyester resin, shrinking agent, styrene, filler, initiator, polymerization inhibitor, inner pattern releasing agent applicable and processing aid
Deng weighing according to a certain percentage, it is thoroughly mixed to obtain resin paste；
B, thickener is mixed with vector resin, obtains thickener paste；
C, by resin paste and thickener paste simultaneously by sheet molding compound produce unit on-line mixing system mix, then with continuously
Directional glass fiber and short glass fiber are compound, obtain sheet material by dipping and compacting process；
Sheet material is placed to curing at a certain temperature, after penetration hardness reaches certain limit, that is, obtain continuously-directional glass d,
Fiber reinforcement high fire-retardance low water absorption sheet molding compound.
The present invention compared with prior art, has advantages below and effect：1st, due to being matched somebody with somebody using continuously-directional glass fiber
Closing part short glass fiber is strengthened, and gained sheet molding compound is compared to conventional all using short glass fiber enhancing
Sheet molding compound is significantly increased in mechanical property, while can ensure the high addition of fire-retardant filler, so as to realizing material sheet
The high flame-retardant property of body（The flame retardant rating listed in corresponding UL-94 standards）；2nd, the basis of high intensity and high flame retardant is being ensured
On, the water absorption rate of gained sheet molding compound can be controlled in less than 0.15%, so as to preferably meet the size during outdoor application
Stability and service life requirement.
Embodiment
Below by embodiment, the present invention is described in further detail, following examples be explanation of the invention and
The invention is not limited in following examples.
Continuously-directional glass fiber strengthens high fire-retardance low water absorption sheet molding compound, it is characterised in that：The sheet molding
The formula of material includes the material of following mass parts：Unsaturated polyester resin 60-90 parts, shrinking agent 10-40 parts, styrene 0-10
Part, filler 100-200 parts, glass fibre 60-120 parts, initiator 0.5-2.0 parts, polymerization inhibitor 0-0.1 parts, thickener 0.5-2.0
Part, inner pattern releasing agent applicable 2-6 parts, processing aid 0-4 parts.
Unsaturated polyester resin in the present embodiment is one kind or any to benzene resin, isophthalic resin or vinylite
Several mixing.
Shrinking agent in the present embodiment is polystyrene, one kind of polyethylene micropowder or polymethyl methacrylate or is appointed
Anticipate several mixing.
Filler in the present embodiment uses one or two kinds of mixing of aluminium hydroxide or calcium carbonate.
Glass fibre in the present embodiment is alkali-free continuous glass fibre and the mixing of the mm of chopped length 25.4 chopped fiber
Thing, mixed proportion are：1:5-5:1.
Initiator in the present embodiment is peroxidized t-butyl perbenzoate（TBPB）, tert-butyl peroxy propylene carbonate
（BIC-75）Or peroxidating -2- ethyl acid the tert-butyl esters（TBPO）One kind or any several mixing.
Polymerization inhibitor in the present embodiment is 1,4-benzoquinone.
Inner pattern releasing agent applicable in the present embodiment is zinc stearate or one or two kinds of mixtures of calcium stearate.
Thickener in the present embodiment is magnesia or one or two kinds of mixtures of magnesium hydroxide；Processing aid is moral
The BYK996 or BYK972 of state's Bi Ke chemical productions one or two kinds of mixtures
A kind of preparation method of continuously-directional glass fiber enhancing high fire-retardance low water absorption sheet molding compound of the present embodiment, including with
Lower step：
A, by unsaturated polyester resin, shrinking agent, styrene, filler, initiator, polymerization inhibitor, inner pattern releasing agent applicable and processing aid
Deng weighing according to a certain percentage, it is thoroughly mixed to obtain resin paste；
B, thickener is mixed with vector resin, obtains thickener paste；
C, by resin paste and thickener paste simultaneously by sheet molding compound produce unit on-line mixing system mix, then with continuously
Directional glass fiber and short glass fiber are compound, obtain sheet material by dipping and compacting process；
Sheet material is placed to curing at a certain temperature, after penetration hardness reaches certain limit, that is, obtain continuously-directional glass d,
Fiber reinforcement high fire-retardance low water absorption sheet molding compound.
Embodiment 1：
Prepare the kg of isophthalic resin 37, the kg of polymethyl methacrylate 13, the kg of polyethylene micropowder 2, the kg of styrene 1.5, hydrogen-oxygen
Change the kg of aluminium 75, the kg of glass fibre 42.5（The ratio for orienting continuous fiber and the mm of chopped length 25.4 chopped fiber is 5:1）,
The kg of peroxidized t-butyl perbenzoate 0.65, the kg of 1,4-benzoquinone 0.02, the kg of magnesia 0.60, zinc stearate 2.2 kg, BYK996 are helped
The kg of agent 0.5 kg, BYK972 auxiliary agent 0.4.
Chemical raw material by more than in addition to thickener is pasted is weighed according to predetermined ratio and carried out fully with homogenizer
Resin paste is mixed to get, paste viscosity is about 120 P；Resin paste and thickener paste are produced into unit by sheet molding compound simultaneously
On-line mixing system mix, then with continuously-directional glass fiber and short glass fiber it is compound, by dipping and compacting process obtain
To sheet molding media sheet；Sheet material is placed to curing at 45 DEG C, after penetration hardness reaches 350-450, that is, it is continuously fixed to obtain
To glass fiber reinforcement high fire-retardance low water absorption sheet molding compound.
Embodiment 2：
Prepare the kg of vinyl ester resin 34, the kg of polystyrene 16, the kg of polyethylene micropowder 2.5, the kg of styrene 2.5, hydroxide
The kg of aluminium 85, the kg of glass fibre 41（The ratio for orienting continuous fiber and the mm of chopped length 25.4 chopped fiber is 4:2）, tertiary fourth
The kg of peroxidating propylene carbonate 0.5, the kg of 1,4-benzoquinone 0.01, the kg of magnesia 0.55, zinc stearate 2.5 kg, BYK996 auxiliary agent
The kg of 1.0 kg, BYK972 auxiliary agent 0.5.
Chemical raw material by more than in addition to thickener is pasted is weighed according to predetermined ratio and carried out fully with homogenizer
Resin paste is mixed to get, paste viscosity is about 105 P；Resin paste and thickener paste are produced into unit by sheet molding compound simultaneously
On-line mixing system mix, then with continuously-directional glass fiber and short glass fiber it is compound, by dipping and compacting process obtain
To sheet molding media sheet；Sheet material is placed to curing at 45 DEG C, after penetration hardness reaches 350-450, that is, it is continuously fixed to obtain
To glass fiber reinforcement high fire-retardance low water absorption sheet molding compound.
Embodiment 3：
Prepare to the kg of benzene resin 31, the kg of polymethyl methacrylate 19, the kg of polyethylene micropowder 2.0, the kg of styrene 2.0, hydrogen
The kg of aluminum oxide 75, the kg of calcium carbonate 15, the kg of glass fibre 58（Orient continuous fiber and the mm of chopped length 25.4 chopped fiber
Ratio is 4:2）, the kg of tert-butyl peroxy propylene carbonate 0.55, the kg of 1,4-benzoquinone 0.02, the kg of magnesia 0.65, zinc stearate
2.0 kg, BYK996 auxiliary agent 1.3 kg, the kg of BYK972 auxiliary agents 0.5.
Chemical raw material by more than in addition to thickener is pasted is weighed according to predetermined ratio and carried out fully with homogenizer
Resin paste is mixed to get, paste viscosity is about 98 P；Resin paste and thickener paste are produced into unit by sheet molding compound simultaneously
On-line mixing system mix, then with continuously-directional glass fiber and short glass fiber it is compound, by dipping and compacting process obtain
To sheet molding media sheet；Sheet material is placed to curing at 45 DEG C, after penetration hardness reaches 350-450, that is, it is continuously fixed to obtain
To glass fiber reinforcement high fire-retardance low water absorption sheet molding compound.
Comparative example：
Prepare the adjacent kg of benzene resin 35, the kg of saturated polyester 15, the kg of styrene 1.5, the kg of calcium carbonate 70, the kg of glass fibre 42（Entirely
Portion is the mm of chopped length 25.4 chopped fiber）, the kg of peroxidized t-butyl perbenzoate 0.60, the kg of 1,4-benzoquinone 0.01, magnesia
0.65 kg, zinc stearate 2.2 kg, BYK996 auxiliary agent 0.6 kg, the kg of BYK972 auxiliary agents 0.3.
Chemical raw material by more than in addition to thickener is pasted is weighed according to predetermined ratio and carried out fully with homogenizer
Resin paste is mixed to get, paste viscosity is about 100 P；Resin paste and thickener paste are produced into unit by sheet molding compound simultaneously
On-line mixing system mix, then with short glass fiber it is compound, by dipping and compacting process obtain sheet molding media sheet；Will
Sheet material places curing at 45 DEG C, after penetration hardness reaches 350-450, that is, obtains conventional chopped strand glass fiber reinforcement sheet mould
Plastics.
The conventional mechanical property of embodiment 1 and comparative example, anti-flammability and water absorption rate Comparative result are as follows：
As can be seen that use the fibre-reinforced sheet molding compound of continuously-directional（Embodiment 1）, it is in glass mass fraction（wt%）
Mechanical property, which is substantially better than full chopped strand, in the case of identical strengthens conventional sheet molding compound（Comparative example）, while resistance can be realized
Combustion grade reaches UL-94 V0 levels, material water absorption rate is less than 0.15%.
More than in each embodiment, in order that obtaining sheet molding compound is presented different colors, can be in preparation process
Add various pigment pastes.
By above-mentioned elaboration, those skilled in the art can implement.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement are substituted using similar mode, without departing from structure of the invention or surmount present claims
Scope defined in book, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of continuously-directional glass fiber strengthens high fire-retardance low water absorption sheet molding compound, it is characterised in that：The sheet mould
The formula of plastics includes the material of following mass parts：Unsaturated polyester resin 60-90 parts, shrinking agent 10-40 parts, styrene 0-
10 parts, filler 100-200 parts, glass fibre 60-120 parts, initiator 0.5-2.0 parts, polymerization inhibitor 0-0.1 parts, thickener 0.5-
2.0 parts, inner pattern releasing agent applicable 2-6 parts, processing aid 0-4 parts.
2. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The unsaturated polyester resin is one kind or any several mixing to benzene resin, isophthalic resin or vinylite.
3. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The shrinking agent is one kind or any several mixed of polystyrene, polyethylene micropowder or polymethyl methacrylate
Close.
4. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The filler uses one or two kinds of mixing of aluminium hydroxide or calcium carbonate.
5. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The glass fibre is the mixture of alkali-free continuous glass fibre and the mm of chopped length 25.4 chopped fiber, mixed proportion
For：1:5-5:1.
6. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The initiator is peroxidized t-butyl perbenzoate, tert-butyl peroxy propylene carbonate or peroxidating -2- ethyl acid uncles
One kind of butyl ester or any several mixing.
7. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The polymerization inhibitor is 1,4-benzoquinone.
8. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The inner pattern releasing agent applicable is one or two kinds of mixtures of zinc stearate or calcium stearate.
9. continuously-directional glass fiber according to claim 1 strengthens high fire-retardance low water absorption sheet molding compound, its feature
It is：The thickener is one or two kinds of mixtures of magnesia or magnesium hydroxide；Processing aid be BYK996 or
BYK972 one or two kinds of mixtures.
A kind of 10. preparation method of continuously-directional glass fiber enhancing high fire-retardance low water absorption sheet molding compound, using any power
Profit requires that continuously-directional glass fiber described in 1-9 strengthens high fire-retardance low water absorption sheet molding compound, it is characterised in that：Including following
Step：
A, by unsaturated polyester resin, shrinking agent, styrene, filler, initiator, polymerization inhibitor, inner pattern releasing agent applicable and processing aid
Deng weighing according to a certain percentage, it is thoroughly mixed to obtain resin paste；
B, thickener is mixed with vector resin, obtains thickener paste；
C, by resin paste and thickener paste simultaneously by sheet molding compound produce unit on-line mixing system mix, then with continuously
Directional glass fiber and short glass fiber are compound, obtain sheet material by dipping and compacting process；
Sheet material is placed to curing at a certain temperature, after penetration hardness reaches certain limit, that is, obtain continuously-directional glass d,
Fiber reinforcement high fire-retardance low water absorption sheet molding compound.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108795004A (en) * | 2018-06-04 | 2018-11-13 | 埃克赛复合材料（南京）有限公司 | A kind of low water absorption glass fiber reinforced plastics composite material |
| CN109880332A (en) * | 2019-02-14 | 2019-06-14 | 常州天马集团有限公司（原建材二五三厂） | A kind of high fire-retardance, high-intensitive environmental type sheet molding compound and preparation method thereof |
| CN110591406A (en) * | 2018-06-13 | 2019-12-20 | 郑州深澜动力科技有限公司 | Low-density high-flame-retardant SMC battery pack material, preparation method thereof and battery pack |
| CN111138883A (en) * | 2018-11-06 | 2020-05-12 | 振石集团华美新材料有限公司 | High-strength and high-flame-retardance sheet molding compound and preparation method thereof |
| CN114921076A (en) * | 2022-06-01 | 2022-08-19 | 深圳市万维博新能源技术有限公司 | SMC-H sheet formula applied to new energy and manufacturing process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696320A (en) * | 2009-08-21 | 2010-04-21 | 振石集团华美复合新材料有限公司 | Continuously-directional glass fiber reinforcement unsaturated polyester sheet molding compound |
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2017
- 2017-08-11 CN CN201710683243.3A patent/CN107474507A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696320A (en) * | 2009-08-21 | 2010-04-21 | 振石集团华美复合新材料有限公司 | Continuously-directional glass fiber reinforcement unsaturated polyester sheet molding compound |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108795004A (en) * | 2018-06-04 | 2018-11-13 | 埃克赛复合材料（南京）有限公司 | A kind of low water absorption glass fiber reinforced plastics composite material |
| CN110591406A (en) * | 2018-06-13 | 2019-12-20 | 郑州深澜动力科技有限公司 | Low-density high-flame-retardant SMC battery pack material, preparation method thereof and battery pack |
| CN111138883A (en) * | 2018-11-06 | 2020-05-12 | 振石集团华美新材料有限公司 | High-strength and high-flame-retardance sheet molding compound and preparation method thereof |
| CN109880332A (en) * | 2019-02-14 | 2019-06-14 | 常州天马集团有限公司（原建材二五三厂） | A kind of high fire-retardance, high-intensitive environmental type sheet molding compound and preparation method thereof |
| CN114921076A (en) * | 2022-06-01 | 2022-08-19 | 深圳市万维博新能源技术有限公司 | SMC-H sheet formula applied to new energy and manufacturing process |
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Application publication date: 20171215 |