CN108250708A - A kind of high tenacity SMC moulding compounds and its manufacturing method - Google Patents
A kind of high tenacity SMC moulding compounds and its manufacturing method Download PDFInfo
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- CN108250708A CN108250708A CN201711381755.0A CN201711381755A CN108250708A CN 108250708 A CN108250708 A CN 108250708A CN 201711381755 A CN201711381755 A CN 201711381755A CN 108250708 A CN108250708 A CN 108250708A
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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
- C08K3/24—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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of high tenacity SMC moulding compounds and its manufacturing method, the manufacture raw material of the high tenacity SMC moulding compounds is unsaturated polyester resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt, low shrinkage additive, inner pattern releasing agent applicable, wetting and dispersing auxiliary agent, ultra-fine grain polyethylene powders, pearl filler, prevents phase separation auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and alkali-free glass fibre.The present invention improves tradition SMC toughness using high-toughness material, introduce thermoplastic elastomer (TPE), ultra-fine grain polyethylene powders and toughened resin, material proportion is adjusted for toughness is improved, improve toughness of material and intensity, under the premise of the rigidity for ensureing product, improve toughness of material, when solving material vibrations the problems such as cracking, breakage, and the present invention can make a large amount of volume productions of SMC using basic skills production SMC.
Description
Technical field
The present invention relates to SMC moulding compound technical fields, specially a kind of high tenacity SMC moulding compounds and its manufacturing method.
Background technology
Thermosetting resin glass fibre reinforced composites, sheet molding compound（Sheet Molding Compound are referred to as
SMC）, be glass fibre reinforced composion one kind.Primary raw material by unsaturated-resin, low shrinkage additive, glass fibre,
Filler and various auxiliary agents composition.It primarily occur ins Europe in earlier 1960s, in or so nineteen sixty-five, beautiful, day phase
After having developed this technique.External advanced SMC production lines and production technology have been introduced the end of the eighties in China.
Requirement of the host producer to SMC automobile peripheral elements improves, it is desirable that solves the crackle occurred in product entrucking road test, breaks
The problems such as splitting, be damaged, and common SMC toughness is insufficient, can not meet the needs of automobile industry is new, for this purpose, it is proposed that a kind of high
Toughness SMC moulding compounds and its manufacturing method.
Invention content
The purpose of the present invention is to provide a kind of high tenacity SMC moulding compounds and its manufacturing method, to solve in background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical solution：A kind of high tenacity SMC moulding compounds and its manufacturer
Method, the manufacture raw material of the high tenacity SMC moulding compounds is unsaturated polyester resin, the swelling of toughened resin, thermoplastic elastomer (TPE) mixes
It closes object, low shrinkage additive, inner pattern releasing agent applicable, wetting and dispersing auxiliary agent, ultra-fine grain polyethylene powders, pearl filler, prevent phase
Detach auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and alkali-free glass fibre, the manufacture raw material weight of the high tenacity SMC moulding compounds
Number is 140-150 parts of unsaturated polyester resin, 30-40 parts of toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% contains admittedly
Amount）40-50 parts, 20-30 parts of low shrinkage additive, 10-15 parts of inner pattern releasing agent applicable, 2-5 parts of wetting and dispersing auxiliary agent, the poly- second of ultra-fine grain
10-30 parts of alkene powder, 300-400 parts of pearl filler prevent 2-5 parts of auxiliary agent of phase separation, 1-1.5 parts of crosslinking agent, polymerization inhibitor 1-3
Part, 2-5 parts of thickener, the alkali-free glass fibre content accounts for the 25-35% of total amount.
Preferably, the manufacturing method of the high tenacity SMC moulding compounds includes the following steps：
A material paste preparation processes：
（1）By thermoplastic elastomer (TPE) and diluent according to 2:3 ratio is put into agitated kettle, when speed of agitator is stirred for 800rpm
Between for 120-130min make it into homogeneous paste, static 8-9h is spare after being swollen fully, uses preceding stirring at low speed 20-25min；
（2）By unsaturated-resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）, it is shrinking agent, ultra-fine
Blender is opened after particle polyethylene powders precise, 10-15min is stirred with rotating speed 800rpm in advance；
（3）Then the addition inner pattern releasing agent applicable of certain mass number, wetting dispersing agent, prevent phase separation agent, crosslinking agent, polymerization inhibitor after
Stir 3-4min, rotating speed 800rpm；
（4）Add pearl filler stirring 5-6min, rotating speed 800rpm；
（5）Tested viscosity enters the spare pot of production after reaching 15000CP, and viscosity abnormality is adjusted by process auxiliaries to qualification；
B production line coating processes：
（1）Material delivery system need to keep the equilibrium of supply and demand with production line in production process, prevent excessive material from generating harmful effect；
（2）Front and rear pressure roller adjusts suitable pressure according to glass fiber content, by 25% alkali-free glass fibre content inlet pressure
1.0MPA, outlet pressure 1.5MPA；
（3）Machine speed control is 8m/min；
C is packed and thickening process：
（1）40-45 DEG C of thickening temperature；
（2）Thicken time 10-16 hour.
Preferably, the manufacture raw material weight number of the high tenacity SMC moulding compounds is 145 parts of unsaturated polyester resin, increases
Tough 35 parts of resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）45 parts, 25 parts of low shrinkage additive, inner pattern releasing agent applicable 13
Part, 4 parts of wetting and dispersing auxiliary agent, 20 parts of ultra-fine grain polyethylene powders, 350 parts of pearl filler, prevent phase separation 4 parts of auxiliary agent,
1.3 parts of crosslinking agent, 2 parts of polymerization inhibitor, 4 parts of thickener, the alkali-free glass fibre content account for the 30% of total amount.
The present invention improves tradition SMC toughness using high-toughness material, introduces thermoplastic elastomer (TPE), ultra-fine grain polyethylene powder
End and toughened resin for toughness adjustment material proportion is improved, improve toughness of material and intensity, ensure the rigid premise of product
Under, improve toughness of material, when solving material vibrations the problems such as cracking, breakage, and the present invention produces SMC using basic skills
It can make a large amount of volume productions of SMC.
Specific embodiment
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one：
A kind of high tenacity SMC moulding compounds and its manufacturing method, the manufacture raw material of the high tenacity SMC moulding compounds is unsaturated polyester (UP)
It is resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt, low shrinkage additive, inner pattern releasing agent applicable, wetting and dispersing auxiliary agent, ultra-fine
Particle polyethylene powders, pearl filler prevent phase separation auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and alkali-free glass fibre,
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 140 parts of unsaturated polyester resin, 30 parts of toughened resin, thermoplastic
Property elastomer swell mixture（40% solid content）40 parts, 30 parts of low shrinkage additive, 15 parts of inner pattern releasing agent applicable, wetting and dispersing auxiliary agent 2
Part, 30 parts of ultra-fine grain polyethylene powders, 300 parts of pearl filler prevent 4 parts of auxiliary agent of phase separation, 1 part of crosslinking agent, polymerization inhibitor 3
Part, 2 parts of thickener, the alkali-free glass fibre content account for the 35% of total amount.
The manufacturing method of the high tenacity SMC moulding compounds includes the following steps：
A material paste preparation processes：
（1）By thermoplastic elastomer (TPE) and diluent according to 2:3 ratio is put into agitated kettle, when speed of agitator is stirred for 800rpm
Between for 120min make it into homogeneous paste, static 8h is spare after being swollen fully, uses preceding stirring at low speed 20min；
（2）By unsaturated-resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）, it is shrinking agent, ultra-fine
Blender is opened after particle polyethylene powders precise, 10min is stirred with rotating speed 800rpm in advance；
（3）Then the addition inner pattern releasing agent applicable of certain mass number, wetting dispersing agent, prevent phase separation agent, crosslinking agent, polymerization inhibitor after
Stir 4min, rotating speed 800rpm；
（4）Add pearl filler stirring 6min, rotating speed 800rpm；
（5）Tested viscosity enters the spare pot of production after reaching 15000CP, and viscosity abnormality is adjusted by process auxiliaries to qualification；
B production line coating processes：
（1）Material delivery system need to keep the equilibrium of supply and demand with production line in production process, prevent excessive material from generating harmful effect；
（2）Front and rear pressure roller adjusts suitable pressure according to glass fiber content, by 25% alkali-free glass fibre inlet pressure 1.0MPA,
Outlet pressure 1.5MPA；
（3）Machine speed control is 8m/min；
C is packed and thickening process：
（1）40 DEG C of thickening temperature；
（2）Thicken 16 hours time.
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 145 parts of unsaturated polyester resin, toughened resin 35
Part, thermoplastic elastomer (TPE) swollen mixt（40% solid content）45 parts, 25 parts of low shrinkage additive, 13 parts of inner pattern releasing agent applicable, wetting point
It dissipates 4 parts of auxiliary agent, 20 parts of ultra-fine grain polyethylene powders, 350 parts of pearl filler, prevent 4 parts of auxiliary agent of phase separation, crosslinking agent 1.3
Part, 2 parts of polymerization inhibitor, 4 parts of thickener, the alkali-free glass fibre content account for the 30% of total amount.
Embodiment two：
A kind of high tenacity SMC moulding compounds and its manufacturing method, the manufacture raw material of the high tenacity SMC moulding compounds is unsaturated polyester (UP)
It is resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt, low shrinkage additive, inner pattern releasing agent applicable, wetting and dispersing auxiliary agent, ultra-fine
Particle polyethylene powders, pearl filler prevent phase separation auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and alkali-free glass fibre,
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 150 parts of unsaturated polyester resin, 40 parts of toughened resin, thermoplastic
Property elastomer swell mixture（40% solid content）50 parts, 30 parts of low shrinkage additive, 10 parts of inner pattern releasing agent applicable, wetting and dispersing auxiliary agent 5
Part, 10 parts of ultra-fine grain polyethylene powders, 400 parts of pearl filler prevent 2 parts of auxiliary agent of phase separation, 1.3 parts of crosslinking agent, inhibition
2 parts of agent, 2 parts of thickener, the alkali-free glass fibre content account for the 35% of total amount.
The manufacturing method of the high tenacity SMC moulding compounds includes the following steps：
A material paste preparation processes：
（1）By thermoplastic elastomer (TPE) and diluent according to 2:3 ratio is put into agitated kettle, when speed of agitator is stirred for 800rpm
Between for 130min make it into homogeneous paste, static 9h is spare after being swollen fully, uses preceding stirring at low speed 23min；
（2）By unsaturated-resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）, it is shrinking agent, ultra-fine
Blender is opened after particle polyethylene powders precise, 13min is stirred with rotating speed 800rpm in advance；
（3）Then the addition inner pattern releasing agent applicable of certain mass number, wetting dispersing agent, prevent phase separation agent, crosslinking agent, polymerization inhibitor after
Stir 3min, rotating speed 800rpm；
（4）Add pearl filler stirring 6min, rotating speed 800rpm；
（5）Tested viscosity enters the spare pot of production after reaching 15000CP, and viscosity abnormality is adjusted by process auxiliaries to qualification；
B production line coating processes：
（1）Material delivery system need to keep the equilibrium of supply and demand with production line in production process, prevent excessive material from generating harmful effect；
（2）Front and rear pressure roller adjusts suitable pressure according to glass fiber content, by 25% alkali-free glass fibre inlet pressure 1.0MPA,
Outlet pressure 1.5MPA；
（3）Machine speed control is 8m/min；
C is packed and thickening process：
（1）43 DEG C of thickening temperature；
（2）Thicken 16 hours time.
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 145 parts of unsaturated polyester resin, toughened resin 35
Part, thermoplastic elastomer (TPE) swollen mixt（40% solid content）45 parts, 25 parts of low shrinkage additive, 13 parts of inner pattern releasing agent applicable, wetting point
It dissipates 4 parts of auxiliary agent, 20 parts of ultra-fine grain polyethylene powders, 350 parts of pearl filler, prevent 4 parts of auxiliary agent of phase separation, crosslinking agent 1.3
Part, 2 parts of polymerization inhibitor, 4 parts of thickener, the alkali-free glass fibre content account for the 30% of total amount.
Embodiment three：
A kind of high tenacity SMC moulding compounds and its manufacturing method, the manufacture raw material of the high tenacity SMC moulding compounds is unsaturated polyester (UP)
It is resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt, low shrinkage additive, inner pattern releasing agent applicable, wetting and dispersing auxiliary agent, ultra-fine
Particle polyethylene powders, pearl filler prevent phase separation auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and alkali-free glass fibre,
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 140 parts of unsaturated polyester resin, 35 parts of toughened resin, thermoplastic
Property elastomer swell mixture（40% solid content）45 parts, 20 parts of low shrinkage additive, 15 parts of inner pattern releasing agent applicable, wetting and dispersing auxiliary agent 2
Part, 23 parts of ultra-fine grain polyethylene powders, 350 parts of pearl filler prevent 4 parts of auxiliary agent of phase separation, 1.2 parts of crosslinking agent, inhibition
2 parts of agent, 5 parts of thickener, the alkali-free glass fibre content account for the 30% of total amount.
The manufacturing method of the high tenacity SMC moulding compounds includes the following steps：
A material paste preparation processes：
（1）By thermoplastic elastomer (TPE) and diluent according to 2:3 ratio is put into agitated kettle, when speed of agitator is stirred for 800rpm
Between for 125min make it into homogeneous paste, static 8.5h is spare after being swollen fully, uses preceding stirring at low speed 23min；
（2）By unsaturated-resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）, it is shrinking agent, ultra-fine
Blender is opened after particle polyethylene powders precise, 13min is stirred with rotating speed 800rpm in advance；
（3）Then the addition inner pattern releasing agent applicable of certain mass number, wetting dispersing agent, prevent phase separation agent, crosslinking agent, polymerization inhibitor after
Stir 3.5min, rotating speed 800rpm；
（4）Add pearl filler stirring 5.5min, rotating speed 800rpm；
（5）Tested viscosity enters the spare pot of production after reaching 15000CP, and viscosity abnormality is adjusted by process auxiliaries to qualification；
B production line coating processes：
（1）Material delivery system need to keep the equilibrium of supply and demand with production line in production process, prevent excessive material from generating harmful effect；
（2）Front and rear pressure roller adjusts suitable pressure according to glass fiber content, by 25% alkali-free glass fibre inlet pressure 1.0MPA,
Outlet pressure 1.5MPA；
（3）Machine speed control is 8m/min；
C is packed and thickening process：
（1）43 DEG C of thickening temperature；
（2）Thicken 13 hours time.
The manufacture raw material weight number of the high tenacity SMC moulding compounds is 145 parts of unsaturated polyester resin, toughened resin 35
Part, thermoplastic elastomer (TPE) swollen mixt（40% solid content）45 parts, 25 parts of low shrinkage additive, 13 parts of inner pattern releasing agent applicable, wetting point
It dissipates 4 parts of auxiliary agent, 20 parts of ultra-fine grain polyethylene powders, 350 parts of pearl filler, prevent 4 parts of auxiliary agent of phase separation, crosslinking agent 1.3
Part, 2 parts of polymerization inhibitor, 4 parts of thickener, the alkali-free glass fibre content account for the 30% of total amount.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of high tenacity SMC moulding compounds and its manufacturing method, it is characterised in that：The manufacture of the high tenacity SMC moulding compounds is former
Expect for unsaturated polyester resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt, low shrinkage additive, inner pattern releasing agent applicable, wetting
Dispersing aid, ultra-fine grain polyethylene powders, pearl filler, prevent phase separation auxiliary agent, crosslinking agent, polymerization inhibitor, thickener and
Alkali-free glass fibre content, the manufacture raw material weight number of the high tenacity SMC moulding compounds is unsaturated polyester resin 140-150
Part, 30-40 parts of toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）40-50 parts, low shrinkage additive 20-30
Part, 10-15 parts of inner pattern releasing agent applicable, 2-5 parts of wetting and dispersing auxiliary agent, 10-30 parts of ultra-fine grain polyethylene powders, pearl filler 300-
400 parts, prevent phase separation 2-5 parts of auxiliary agent, 1-1.5 parts of crosslinking agent, 1-3 parts of polymerization inhibitor, 2-5 parts of thickener, the alkali-free glass
Fiber content accounts for the 25-35% of total amount.
2. a kind of high tenacity SMC moulding compounds according to claim 1 and its manufacturing method, it is characterised in that：The high-ductility
The manufacturing method of property SMC moulding compounds includes the following steps：
A material paste preparation processes：
（1）By thermoplastic elastomer (TPE) and diluent according to 2:3 ratio is put into agitated kettle, when speed of agitator is stirred for 800rpm
Between for 120-130min make it into homogeneous paste, static 8-9h is spare after being swollen fully, uses preceding stirring at low speed 20-25min；
（2）By unsaturated-resin, toughened resin, thermoplastic elastomer (TPE) swollen mixt（40% solid content）, it is shrinking agent, ultra-fine
Blender is opened after particle polyethylene powders precise, 10-15min is stirred with rotating speed 800rpm in advance；
（3）Then the addition inner pattern releasing agent applicable of certain mass number, wetting dispersing agent, prevent phase separation agent, crosslinking agent, polymerization inhibitor after
Stir 3-4min, rotating speed 800rpm；
（4）Add pearl filler stirring 5-6min, rotating speed 800rpm；
（5）Tested viscosity enters the spare pot of production after reaching 15000CP, and viscosity abnormality is adjusted by process auxiliaries to qualification；
B production line coating processes：
（1）Material delivery system need to keep the equilibrium of supply and demand with production line in production process, prevent excessive material from generating harmful effect；
（2）Front and rear pressure roller adjusts suitable pressure according to glass fiber content, by 25% alkali-free glass fibre content inlet pressure
1.0MPA, outlet pressure 1.5MPA；
（3）Machine speed control is 8m/min；
C is packed and thickening process：
（1）40-45 DEG C of thickening temperature；
（2）Thicken time 10-16 hour.
3. a kind of high tenacity SMC moulding compounds according to claim 1 and its manufacturing method, it is characterised in that：The high-ductility
Property SMC moulding compounds manufacture raw material weight number for 145 parts of unsaturated polyester resin, 35 parts of toughened resin, thermoplastic elastomer (TPE)
Swollen mixt（40% solid content）45 parts, it is 25 parts of low shrinkage additive, 13 parts of inner pattern releasing agent applicable, 4 parts of wetting and dispersing auxiliary agent, ultra-fine
20 parts of particle polyethylene powders, 350 parts of pearl filler prevent 4 parts of auxiliary agent of phase separation, 1.3 parts of crosslinking agent, 2 parts of polymerization inhibitor, increase
Thick dose 4 parts, the alkali-free glass fibre content accounts for the 30% of total amount.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175372A (en) * | 2019-07-04 | 2021-01-05 | 陕西铱鑫复合材料有限责任公司 | Low-density glass fiber reinforced polyester composite material |
| CN113174126A (en) * | 2021-05-13 | 2021-07-27 | 河北英丽达新材料科技有限公司 | High-performance SMC molding compound and preparation method thereof |
| CN113308102A (en) * | 2021-04-07 | 2021-08-27 | 常州市宏发纵横新材料科技股份有限公司 | Preparation method of unsaturated polyester resin system for wind power blade root pultrusion product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175372A (en) * | 2019-07-04 | 2021-01-05 | 陕西铱鑫复合材料有限责任公司 | Low-density glass fiber reinforced polyester composite material |
| CN113308102A (en) * | 2021-04-07 | 2021-08-27 | 常州市宏发纵横新材料科技股份有限公司 | Preparation method of unsaturated polyester resin system for wind power blade root pultrusion product |
| CN113308102B (en) * | 2021-04-07 | 2023-02-03 | 常州市宏发纵横新材料科技股份有限公司 | Preparation method of unsaturated polyester resin system for wind power blade root pultrusion product |
| CN113174126A (en) * | 2021-05-13 | 2021-07-27 | 河北英丽达新材料科技有限公司 | High-performance SMC molding compound and preparation method thereof |
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Application publication date: 20180706 |