CN109694562A - A kind of high speed rotor plastic packaging BMC material and preparation method thereof - Google Patents

A kind of high speed rotor plastic packaging BMC material and preparation method thereof Download PDF

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Publication number
CN109694562A
CN109694562A CN201811629181.9A CN201811629181A CN109694562A CN 109694562 A CN109694562 A CN 109694562A CN 201811629181 A CN201811629181 A CN 201811629181A CN 109694562 A CN109694562 A CN 109694562A
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CN
China
Prior art keywords
plastic packaging
high speed
speed rotor
inhibitor
filler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811629181.9A
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Chinese (zh)
Inventor
杨永林
霍飞明
杨智凯
金洪财
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SHAOXING JINCHUANGYI ELECTRIC INDUSTRY Co Ltd
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SHAOXING JINCHUANGYI ELECTRIC INDUSTRY Co Ltd
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Priority to CN201811629181.9A priority Critical patent/CN109694562A/en
Publication of CN109694562A publication Critical patent/CN109694562A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06Unsaturated polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of high speed rotor plastic packaging BMC material, including unsaturated polyester resin, low shrink resin, release agent, filler, curing agent, glass fibre, inhibitor;The inhibitor is hydroquinone, 1,4-benzoquinone, 1,4-benzoquinone, p-tert-Butylcatechol or quaternary ammonium salt;It further include thickener, the thickener is the magnesia of Chun Du≤99%.The present invention by adding inhibitor in the material, curing time (slow down cured effect) of the material inside the runner and mold in flow process can be effectively increased, so that completion of cure, optimization selection and rational proportion in conjunction with each component raw material, make BMC plastic packaging product that there is excellent surface smoothness, compactness and mechanical strength, is able to satisfy the requirement of the high revolving speed rotor of 20000 r/min.

Description

A kind of high speed rotor plastic packaging BMC material and preparation method thereof
Technical field
The invention belongs to BMC material technical field, in particular to a kind of high speed rotor plastic packaging BMC material and its preparation side Method.
Background technique
Rotor is the rotary body by bearing support.Rotor is mostly the main rotation member in dynamic power machine and work mechanism. Typical rotor has Turbomachine Rotor, rotor, the rotor of various pumps and rotor of turbocompressor etc..Rotor is certain Very big deformation can occur and cause to resonate when being rotated under specific revolving speed, since rotor makees high speed rotary motion, so needing Balance.
Existing ordinary motor rotor speed only has 5000r/min or so, and the material used is conventional motor plastic package material, There are two types of types substantially for the high molecular structure of plastics: the first is linear structure, and the high-molecular compound with this structure claims For chain macromolecule compound;Second is three-dimensional-structure, and the producing high-molecular with this structure is collectively referred to as three-dimensional polymeric molecule Close object.Some macromolecules have branch, referred to as branched high molecular, belong to linear structure.Some macromolecules are although intermolecular friendship Join, but crosslinking is less, referred to as reticular structure, belongs to three-dimensional-structure.Two different structures show two kinds of opposite performances. Linear structure (including branched structure) high polymer is due to the presence of independent molecule, therefore flexible, plasticity, in a solvent can be molten Solution, heating can melt, hardness and the lesser feature of brittleness.Three-dimensional-structure high polymer since no independent macromolecular exists, therefore Without elasticity and plasticity, it cannot dissolve and melt, can only be swollen, hardness and brittleness are larger.The high score of plastics then two kinds of structures Son has, and is thermoplastic made of linear macromolecule, is thermosetting plastics made of three-dimensional polymeric molecule.
The most of plastics of motor plastic package material are light, chemical stabilization, will not corrode;But it has the disadvantage that plastics are resistance to Hot difference, coefficient of thermal expansion is big, easy firing;Poor dimensional stability is easily deformed;Weatherability is poor.In addition, being directed to part rotor Revolving speed needs to reach the high revolving speed rotor of 20000r/min, using ordinary motor plastic packaging material, can because intensity not enough due to burst apart and fall off, Seriously affect the service life of rotor and using safe.
Summary of the invention
The invention discloses a kind of mobility and good moldabilities, are able to satisfy the high speed rotor modeling of high revolving speed rotor requirement Envelope uses BMC material.
In order to achieve the above objectives, concrete scheme of the invention is as follows:
A kind of high speed rotor plastic packaging BMC material, including unsaturated polyester resin, low shrink resin, release agent, filler, Curing agent, glass fibre, inhibitor;The inhibitor is hydroquinone, benzoquinones, p-tert-Butylcatechol or quaternary ammonium salt.
The unsaturated polyester resin is isophthalic resin, vinylite, epoxy resin or adjacent benzene resin;Described is low Shrinkage resin is PS solution, PMMA solution, PVAC solution, EVA solution, rubber, PE powder or saturated resin;The release agent is Calcium stearate, zinc stearate or barium stearate;The curing agent is bis- (t-amyl peroxy) hexamethylenes of 1,1-, peroxidating 2- second Penta rouge of guanidine-acetic acid uncle, peroxidized t-butyl perbenzoate, three tert-butyl acrylate of isopropyl peroxide, the tertiary fourth of peroxidating 2- ethyl acid Ester, 1,1- bis- (t-butyl peroxy) -3, any one of 3,5- trimethyl-cyclohexanes or more than one mixture.
The filler is at least one of aluminium hydroxide and calcium carbonate.Preferably, the filler is partial size D50= At least one of the calcium carbonate of the aluminium hydroxide and partial size D50=5-8um of 8-10um, the aluminium hydroxide and calcium carbonate of above-mentioned partial size With preferable oil absorbency, the combination of the two can effectively reduce the problems such as material, sand hole are lacked in material forming process, so that Material has more preferable compactness.
It further include thickener to be conducive to material molding, the thickener is the magnesia of Chun Du≤99%.It adds pure The magnesia of Du≤99% can be effectively improved the processing forming of high speed rotor plastic packaging BMC material as thickener.
Preferably, the unsaturated polyester resin is isophthalic neopentyl glycol resins, and the resin viscosity is in 2000- 3000mPa.S, solid content is in 60-65%, relative to other unsaturated polyester resins, has more excellent water resistance, weather-proof Property and glass wellability;The low shrink resin is modified PS solution, with impact, excellent color compatibility and Heat-resisting weatherability.
More effectively to slow down solidification of the BMC material inside the runner and mold in flow process, it is preferred that the suppression Preparation is the hydroquinone or benzoquinones of Chun Du≤98%.
A kind of high speed rotor plastic packaging BMC material, the raw material including following weight percent: unsaturated polyester resin 12- 18%;Low shrink resin 4-10%;Release agent 1-3%;Filler 50-65%;Curing agent 0.1-0.5%;Glass fibre 15- 25%;Inhibitor 0.1-0.5%;Thickener 0-0.1%.
Preferably, the raw material including following weight percent: unsaturated polyester resin 12-16%;Low shrink resin 6- 10%;Release agent 1-2%;Filler 50-60%;Curing agent 0.1-0.3%;Glass fibre 18-25%;Inhibitor 0.1-0.3%; Thickener 0.01-0.08%.
Preferably, the raw material including following weight percent: unsaturated polyester resin 14-16%;Low shrink resin 8- 10%;Release agent 1-2%;Filler 50-55%;Curing agent 0.1-0.2%;Glass fibre 20-25%;Inhibitor 0.1-0.2%; Thickener 0.03-0.05%.
The invention also discloses a kind of preparation methods of high speed rotor plastic packaging BMC material, with simple process, operation Convenient feature.
In order to achieve the above objectives, concrete scheme of the invention is as follows:
A kind of preparation method of high speed rotor plastic packaging BMC material, includes the following steps:
(1) resin, curing agent, release agent, inhibitor are added in dispersion cylinder, dispersion stirs to get liquid;
(2) kneader is added in filler, stirs to get powder;
(3) liquid of step 1 is added in the powder of step 2, paste is stirred to get in kneader;
(4) when needing to add thickener, thickener is added in the paste of step 3, thickening is stirred to get in kneader Paste;
(5) it is uniformly added into glass fibre, stirs to get this product.
Compared with prior art, the present invention having the advantages that following prominent and good effect:
(1) by the way that in high speed rotor plastic packaging, with inhibitor is added in BMC material, material can be effectively increased in runner and mold Curing time (slowing down cured effect) in the flow process of the inside solves material forming process so that solidification is more complete Scarce material, precuring, ripple glaze, sand hole the problems such as.
(2) screening is compared by further investigation to existing rotor plastic packaging material and test, to unsaturated polyester (UP) Resin, low shrink resin, filler, inhibitor raw material optimize selection, can be comprehensive in conjunction with the rational proportion of each component raw material Close optimization select each component raw material excellent properties, make BMC plastic packaging product have excellent surface smoothness, compactness and Mechanical strength is able to satisfy the requirement of the high revolving speed rotor of 20000r/min;Meanwhile also there is good mouldability, it is suitble to Industrialized mass production.
Detailed description of the invention
Fig. 1 is the curing reaction curve comparison figure (temperature/time) of embodiment 1 and comparative example.
Label declaration: 1 is the curing reaction curve of comparative example, and 2 be the curing reaction curve of embodiment 1.
Specific embodiment
Embodiment 1
A kind of high speed rotor plastic packaging BMC material, the raw material including following weight percent: unsaturated polyester resin ( Benzene resin) 15%;Low shrink resin (PS solution) 8%;Release agent (calcium stearate) 1.5%;Filler (calcium carbonate, similarly hereinafter) 50%;Curing agent (bis- (t-amyl peroxy) hexamethylenes of 1,1-) 0.15%;Glass fibre 25.07%;Inhibitor (hydroquinone) 0.2%;The magnesia of thickener (Chun Du≤99%, similarly hereinafter) 0.08%.
A kind of preparation method of high speed rotor plastic packaging BMC material, includes the following steps:
1. resin, curing agent, pigment, release agent, inhibitor are added in dispersion cylinder, dispersion stirring 20min is stirred Mix uniform liquid;
2. kneader is added in a filler material, 10min, the powder stirred evenly are stirred;
3. the liquid stirred evenly is added in the powder stirred evenly, 20min is stirred in kneader, is uniformly mixed Paste;
4. uniformly mixed paste, the thickening paste that stirring 5min is stirred evenly in kneader is added in thickener Object;
5. being uniformly added into glass fibre, 10min, the material mixed are stirred.
Embodiment 2
Other are as described in Example 1, and difference is: the raw material including following weight percent: unsaturated polyester resin (second Ene based resins) 12%;Low shrink resin (PMMA solution) 7%;Release agent (zinc stearate) 3%;Filler 60%;Curing agent (mistake Aoxidize penta rouge of 2- ethyl acetic acid uncle) 0.3%;Glass fibre 17.2%;Inhibitor (benzoquinones) 0.5%.
Embodiment 3
Other are as described in Example 1, and difference is: the raw material including following weight percent: unsaturated polyester (UP) (asphalt mixtures modified by epoxy resin Rouge) 18%;Low shrink resin (PVAC solution) 4%;Release agent (barium stearate) 1%;Filler 55%;Curing agent (benzoyl peroxide T-butyl formate) 0.5%;Glass fibre 21.28%;Inhibitor (p-tert-Butylcatechol) 0.2%;Thickener 0.02%.
Embodiment 4
Other are as described in Example 1, and difference is: the raw material including following weight percent: unsaturated polyester (UP) (adjacent benzene tree Rouge) 11.5%;Low shrink resin (PE powder) 10%;Release agent (barium stearate) 1.5%;Filler 61.17%;Curing agent (peroxide Change three tert-butyl acrylate of isopropyl) 0.4%;Glass fibre 15%;Inhibitor ((quaternary ammonium salt)) 0.4%;Thickener 0.03%.
Comparative example
A kind of conventional motor plastic packaging material, the raw material including following weight percent: unsaturated polyester (UP) (adjacent benzene resin) 15%; Low shrink resin (PE powder) 8%;Release agent (barium stearate) 1.5%;Filler 51.1%;Curing agent (three acid of isopropyl peroxide The tert-butyl ester) 0.15%;Glass fibre 24.25%.
A kind of preparation method of conventional motor plastic packaging material, includes the following steps:
1. resin, curing agent, pigment, release agent are added in dispersion cylinder, dispersion stirring 20min is stirred evenly Liquid;
2. kneader is added in a filler material, 10min, the powder stirred evenly are stirred;
3. the liquid stirred evenly is added in the powder stirred evenly, 20min is stirred in kneader, is uniformly mixed Paste;
4. being uniformly added into glass, 10min is stirred, obtains comparison rotor material.
Following table is the specific gravity of conventional motor plastic packaging material and embodiment 1-4, shrinking percentage, curing time, mobility, stretches by force Degree, bending strength, impact strength data.
As it can be seen that the curing time of high speed rotor plastic packaging BMC material of the present invention is much larger than conventional motor plastic packaging material, It stretches, be bent, impact strength is above conventional motor plastic packaging material.
Above specific embodiment is only presently preferred embodiments of the present invention, is not intended to limit the invention, all in this hair Any modification, equivalent substitution, improvement and etc. done within bright spirit and principle, should be included in protection scope of the present invention it It is interior.

Claims (10)

1. a kind of high speed rotor plastic packaging BMC material, including unsaturated polyester resin, low shrink resin, release agent, filler, Gu Agent, glass fibre, it is characterized in that: it further include inhibitor;The inhibitor is hydroquinone, benzoquinones, to tert-butyl o Benzenediol or quaternary ammonium salt.
2. high speed rotor plastic packaging BMC material as described in claim 1, it is characterized in that: the filler is aluminium hydroxide At least one of with calcium carbonate.
3. high speed rotor plastic packaging BMC material as described in claim 1, it is characterized in that: the filler be partial size D50= At least one of the calcium carbonate of the aluminium hydroxide and partial size D50=5-8um of 8-10um.
4. high speed rotor plastic packaging BMC material as described in claim 1, it is characterized in that: it further include thickener, the increasing The thick dose of magnesia for Chun Du≤99%.
5. high speed rotor plastic packaging BMC material as described in claim 1, it is characterized in that: the unsaturated polyester resin For isophthalic neopentyl glycol resins;The low shrink resin is modified PS solution.
6. high speed rotor plastic packaging BMC material as described in claim 1, it is characterized in that: the inhibitor be Chun Du≤ 98% hydroquinone or benzoquinones.
7. the high speed rotor plastic packaging BMC material as described in claim 1-6 is any, it is characterized in that: including following weight hundred Divide the raw material of ratio: unsaturated polyester resin 12-18%;Low shrink resin 4-10%;Release agent 1-3%;Filler 50-65%;Curing agent 0.1-0.5%;Glass fibre 15-25%;Inhibitor 0.1-0.5%;Thickener 0-0.1%.
8. the high speed rotor plastic packaging BMC material as described in claim 1-6 is any, it is characterised in that: including following weight hundred Divide the raw material of ratio: unsaturated polyester resin 12-16%;Low shrink resin 6-10%;Release agent 1-2%;Filler 50-60%;Curing agent 0.1-0.3%;Glass fibre 18-25%;Inhibitor 0.1-0.3%;Thickener 0.01-0.08%.
9. the high speed rotor plastic packaging BMC material as described in claim 1-6 is any, it is characterised in that: including following weight hundred Divide the raw material of ratio: unsaturated polyester resin 14-16%;Low shrink resin 8-10%;Release agent 1-2%;Filler 50-55%;Curing agent 0.1-0.2%;Glass fibre 20-25%;Inhibitor 0.1-0.2%;Thickener 0.03-0.05%.
10. the preparation method of high speed rotor plastic packaging BMC material as described in claim 1-6 is any, which is characterized in that including such as Lower step:
(1) resin, curing agent, release agent, inhibitor are added in dispersion cylinder, dispersion stirs to get liquid;
(2) kneader is added in filler, stirs to get powder;
(3) liquid of step 1 is added in the powder of step 2, paste is stirred to get in kneader;
(4) when needing to add thickener, thickener is added in the paste of step 3, thickening paste is stirred to get in kneader Object;
(5) it is uniformly added into glass fibre, stirs to get this product.
CN201811629181.9A 2018-12-29 2018-12-29 A kind of high speed rotor plastic packaging BMC material and preparation method thereof Pending CN109694562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811629181.9A CN109694562A (en) 2018-12-29 2018-12-29 A kind of high speed rotor plastic packaging BMC material and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201811629181.9A CN109694562A (en) 2018-12-29 2018-12-29 A kind of high speed rotor plastic packaging BMC material and preparation method thereof

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002212408A (en) * 2001-01-17 2002-07-31 Hitachi Chem Co Ltd Unsaturated polyester resin composition
CN102757630A (en) * 2012-07-30 2012-10-31 无锡新宏泰电器科技股份有限公司 Low temperature and low pressure BMC (Bulk Molding Compound) material, preparation method thereof and purpose thereof
CN108017891A (en) * 2016-11-04 2018-05-11 无锡创达新材料股份有限公司 A kind of anlistatig unsaturated polyester glass fibre enhancing tubular molding compound

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002212408A (en) * 2001-01-17 2002-07-31 Hitachi Chem Co Ltd Unsaturated polyester resin composition
CN102757630A (en) * 2012-07-30 2012-10-31 无锡新宏泰电器科技股份有限公司 Low temperature and low pressure BMC (Bulk Molding Compound) material, preparation method thereof and purpose thereof
CN108017891A (en) * 2016-11-04 2018-05-11 无锡创达新材料股份有限公司 A kind of anlistatig unsaturated polyester glass fibre enhancing tubular molding compound

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