CN103030959B - Unsaturated polyester fiber reinforced bulk molding compound and preparation method thereof - Google Patents
Unsaturated polyester fiber reinforced bulk molding compound and preparation method thereof Download PDFInfo
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- CN103030959B CN103030959B CN201210590289.8A CN201210590289A CN103030959B CN 103030959 B CN103030959 B CN 103030959B CN 201210590289 A CN201210590289 A CN 201210590289A CN 103030959 B CN103030959 B CN 103030959B
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Abstract
The invention relates to a preparation method of an unsaturated polyester fiber reinforced bulk molding compound and aims at providing the unsaturated polyester fiber reinforced bulk molding compound that has high strength, impact resistance and high-temperature and low-temperature resistance. The unsaturated polyester fiber reinforced bulk molding compound comprises the following materials in parts by weight: 30-50 parts of unsaturated polyester, 0.3-0.5 parts of cobalt naphthenate, 0.2-0.4 parts of methyl ethyl ketone peroxide, 25-35 parts of reinforced fibers, 30-40 parts of calcium carbonate, 0.2-0.3 parts of antistatic agent, 0.1-0.15 parts of antioxidant agent and 0.2-0.3 parts of pentabromophenol. The unsaturated polyester fiber reinforced bulk molding compound has the advantages of high toughness and high strength; the impact strength is 150kj/m<2>; the bending strength is 180MPa; and the tensile strength is 90MPa.
Description
Technical field
The present invention relates to a kind of reinforced plastics and preparation method thereof, be specifically related to a kind of unsaturated polyester fiber reinforcement Bulk Molding Compound and preparation method thereof.
Background technology
Unsaturated polyester fiber reinforcement Bulk Molding Compound is primarily of short glass fiber, unsaturated polyester, filler and the various additive material bulk prepreg through fully mixing.First this material is applied in front West Germany and Britain in twentieth century the sixties, then obtains larger development in the U.S. and Japan respectively in the seventies and the eighties.Because unsaturated polyester fiber reinforcement Bulk Molding Compound has excellent electric property, mechanical property, thermotolerance and chemical resistance, adapts to various moulding process again, the requirement of various product performance can be met, therefore more and more be subject to liking of users.
But common unsaturated polyester fiber reinforcement Bulk Molding Compound has the shortcoming that shock-resistance is poor, intensity is lower.
Summary of the invention
Main purpose of the present invention is to provide a kind of unsaturated polyester fiber reinforcement Bulk Molding Compound with high strength, shock-resistant, high temperature resistant low temperature.
A kind of unsaturated polyester fiber reinforcement Bulk Molding Compound, it is characterized in that: be made up of following weight part: unsaturated polyester 30 ~ 50 parts, cobalt naphthenate 0.3 ~ 0.5 part, methylethyl ketone peroxide 0.2 ~ 0.4 part, 30 ~ 40 parts, calcium carbonate, 0.2 ~ 0.3 part, static inhibitor, 0.1 ~ 0.15 part, oxidation inhibitor, pentabromophenol 0.2 ~ 0.3, fortifying fibre 25 ~ 35 parts.
Further, described unsaturated polyester is the one in MALEIC ANHYDRIDE, FUMARIC ACID TECH GRADE, tetrahydronaphthalic anhydride, m-phthalic acid, Tetra hydro Phthalic anhydride, terephthalic acid and hexanodioic acid, with a kind of polycondensation product in propylene glycol, glycol ether and dipropylene glycol.
Further, described fortifying fibre is the one in the non-twist glass roving of alkali-free, carbon fiber, organic polymeric fiber, ceramic fiber, steel fiber.
Further, described static inhibitor comprise in quaternary ammonium salt, amine salt, phosphoric acid salt, sulfonate, polyvalent alcohol, polyhydric alcohol fatty acid ester, polyoxyethylene annexation, quatemay ammonium inner salt, L-Ala salt one or more.
Herein, preferably filled a prescription according to relevant Mechanical test results: described unsaturated polyester fiber reinforcement Bulk Molding Compound comprises following material and forms by weight: unsaturated polyester 36 parts, cobalt naphthenate 0.3 part, methylethyl ketone peroxide 0.2 part, alkali-free Non-twisting glass fibre rove 28 parts, 35 parts, calcium carbonate, 0.2 part, static inhibitor, 0.1 part, oxidation inhibitor, pentabromophenol 0.2 part.Wherein, described calcium carbonate is 500 orders and the 200 object calcium carbonate of 1:1 mixing by weight.
The preparation process of described unsaturated polyester fiber reinforcement Bulk Molding Compound comprises:
A. cobalt naphthenate, methylethyl ketone peroxide, calcium carbonate, static inhibitor, oxidation inhibitor and pentabromophenol are joined in unsaturated polyester, mix with stirrer, obtain unsaturated polyester Bulk Molding Compound resin paste;
B. the resin paste sized reinforcing fibres in kneader will made, fiber is limited to and adds completely within 5min, mediate 10 ~ 20min relief its fully mix;
C. the material group forcing machine having infiltrated fortifying fibre is extruded, pack with polyethylene film, place under normal temperature and within 24 hours, obtain unsaturated polyester fiber reinforcement Bulk Molding Compound.
In technique scheme, the consumption of monomer is the optimum feed stock ratio participating in reaction, but those skilled in the art can carry out according to instruction of the present invention the change that is equal to.Unsaturated polyester fiber reinforcement Bulk Molding Compound prepared by the present invention can the temperature of resistance to 213 DEG C and-64 DEG C, and there is the advantage of high tenacity and high strength, effectively improve the shock-resistance of unsaturated polyester fiber reinforcement Bulk Molding Compound, this also increases it in electrical equipment, motor, wireless, instrument, machinofacture, chemical industry equipment, building, the potential range of application of the aspect such as communications and transportation and national defence.
Embodiment
For making those skilled in the art clearly and technical scheme clearly of the present invention, spy provides preferred embodiment below, but technological thought of the present invention is not limited to following examples.Embodiment all carries out the test of shock strength, flexural strength, tensile strength and texturing temperature to product according to GB/T1451-2005 " fibre reinforced plastics freely-supported beam type impact ductility test method ", GB/T1449-2005 " fibre reinforced plastics bending property test method ", GB/T1447-2005 " fibre reinforced plastics Erichsen test method " and GB/T1634-2004 " plastics bending load heat-drawn wire test method ".
Embodiment one
According to weight ratio formula: Tetra hydro Phthalic anhydride-propylene glycol unsaturated polyester 36 parts, cobalt naphthenate 0.3 part, methylethyl ketone peroxide 0.2 part, by weight 1:1 mixing 500 orders and 30 parts, 200 object calcium carbonate, 0.2 part, static inhibitor, 0.1 part, oxidation inhibitor, pentabromophenol 0.2 part, it is mixed with stirrer, obtains resin paste.
The resin paste made is infiltrated in kneader the non-twist glass roving of alkali-free of 28 parts of weight, glass roving adds within 5min, mixes after mediating 15min.
The material group forcing machine having infiltrated glass roving is extruded, packs with polyethylene film, place in environment dry under normal temperature and within 24 hours, obtain unsaturated fiber enhancing Bulk Molding Compound.
Embodiment two
According to weight ratio formula: Tetra hydro Phthalic anhydride-propylene glycol unsaturated polyester 45 parts, cobalt naphthenate 0.4 part, methylethyl ketone peroxide 0.3 part, 500 30 parts, object calcium carbonate, 0.2 part, static inhibitor, 0.12 part, oxidation inhibitor, pentabromophenol 0.2 part, mixes it with stirrer, obtains resin paste.
The resin paste made is infiltrated in kneader the non-twist glass roving of alkali-free of 28 parts of weight, glass roving adds within 5min, mixes after mediating 15min.
The material group forcing machine having infiltrated glass roving is extruded, packs with polyethylene film, place in environment dry under normal temperature and within 24 hours, obtain unsaturated fiber enhancing Bulk Molding Compound.
Embodiment three
According to weight ratio formula: m-phthalic acid-glycol ether unsaturated polyester 40 parts, cobalt naphthenate 0.4 part, methylethyl ketone peroxide 0.3 part, 500 30 parts, object calcium carbonate, 0.2 part, static inhibitor, 0.12 part, oxidation inhibitor, pentabromophenol 0.2 part, mixes it with stirrer, obtains resin paste.
The resin paste made is infiltrated in kneader the carbon fiber of 30 parts of weight, carbon fiber adds within 5min, mixes after mediating 15min.
The material group forcing machine having infiltrated carbon fiber is extruded, packs with polyethylene film, place in environment dry under normal temperature and within 24 hours, obtain unsaturated fiber enhancing Bulk Molding Compound.
Embodiment four
According to weight ratio formula: m-phthalic acid-glycol ether unsaturated polyester 36 parts, cobalt naphthenate 0.3 part, methylethyl ketone peroxide 0.2 part, by weight 200 orders and 30 parts, the 500 object calcium carbonate of 1:1 mixing, 0.2 part, static inhibitor, 0.1 part, oxidation inhibitor, pentabromophenol 0.2 part, it is mixed with stirrer, obtains resin paste.
The resin paste made is infiltrated in kneader the carbon fiber of 30 parts of weight, carbon fiber adds within 5min, mixes after mediating 15min.
The material group forcing machine having infiltrated carbon fiber is extruded, packs with polyethylene film, place in environment dry under normal temperature and within 24 hours, obtain unsaturated fiber enhancing Bulk Molding Compound.
The performance test results of embodiment 1 ~ 4 is as shown in the table:
Can find out that unsaturated polyester fiber reinforcement Bulk Molding Compound prepared by the present invention can the temperature of resistance to 213 DEG C and-64 DEG C according to test result, shock strength reaches 150kJ/m
2, flexural strength reaches 180MPa, and tensile strength reaches 90MPa, namely has the advantage of high tenacity and high strength, effectively improves the shock-resistance of unsaturated polyester fiber reinforcement Bulk Molding Compound.
Claims (4)
1. a unsaturated polyester fiber reinforcement Bulk Molding Compound, it is characterized in that: be made up of following weight part: unsaturated polyester 30 ~ 50 parts, cobalt naphthenate 0.3 ~ 0.5 part, methylethyl ketone peroxide 0.2 ~ 0.4 part, 30 ~ 40 parts, calcium carbonate, 0.2 ~ 0.3 part, static inhibitor, 0.1 ~ 0.15 part, oxidation inhibitor, pentabromophenol 0.2 ~ 0.3, fortifying fibre 25 ~ 35 parts; Described unsaturated polyester is the one in MALEIC ANHYDRIDE, FUMARIC ACID TECH GRADE, tetrahydronaphthalic anhydride, m-phthalic acid, Tetra hydro Phthalic anhydride, terephthalic acid and hexanodioic acid, with a kind of polycondensation product in propylene glycol, glycol ether and dipropylene glycol; Described static inhibitor comprise in quaternary ammonium salt, amine salt, phosphoric acid salt, sulfonate, polyvalent alcohol, polyhydric alcohol fatty acid ester, polyoxyethylene annexation, quatemay ammonium inner salt, L-Ala salt one or more; Described calcium carbonate is 500 orders and the 200 object calcium carbonate of 1:1 mixing by weight.
2. unsaturated polyester fiber reinforcement Bulk Molding Compound according to claim 1, is characterized in that: described fortifying fibre is the one in the non-twist glass roving of alkali-free, carbon fiber, organic polymeric fiber, ceramic fiber, steel fiber.
3. unsaturated polyester fiber reinforcement Bulk Molding Compound according to claim 1, it is characterized in that: described unsaturated polyester fiber reinforcement Bulk Molding Compound comprises following material and forms by weight: unsaturated polyester 36 parts, cobalt naphthenate 0.3 part, methylethyl ketone peroxide 0.2 part, alkali-free Non-twisting glass fibre rove 28 parts, 35 parts, calcium carbonate, 0.2 part, static inhibitor, 0.1 part, oxidation inhibitor, pentabromophenol 0.2 part.
4., according to the preparation method of the unsaturated polyester fiber reinforcement Bulk Molding Compound in Claim 1-3 described in any one, it is characterized in that: step comprises:
A. cobalt naphthenate, methylethyl ketone peroxide, calcium carbonate, static inhibitor, oxidation inhibitor and pentabromophenol are joined in unsaturated polyester, mix with stirrer, obtain unsaturated polyester Bulk Molding Compound resin paste;
B. the resin paste sized reinforcing fibres in kneader will made, fiber is limited to and adds completely within 5min, mediate 10 ~ 20min relief its fully mix;
C. the material group forcing machine having infiltrated fortifying fibre is extruded, pack with polyethylene film, place under normal temperature and within 24 hours, obtain unsaturated polyester fiber reinforcement Bulk Molding Compound.
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| CN104445699B (en) * | 2014-12-25 | 2018-01-05 | 昆明普尔顿环保科技股份有限公司 | A kind of plastic partition oil system |
| CN104893336A (en) * | 2015-06-24 | 2015-09-09 | 芜湖市晨曦新型建材科技有限公司 | Wood-plastic composite and preparation method thereof |
| CN104945873B (en) * | 2015-07-22 | 2017-01-04 | 江苏兆鋆新材料股份有限公司 | A kind of preparation method of the BMC BMC of high anti-yellowing property |
| ES2563903B2 (en) * | 2015-08-31 | 2016-07-06 | Avanzare Innovación Tecnológica S.L. | Bicomponent antistatic formulation for unsaturated polyester and epoxy vinyl ester resins |
| CN107141594A (en) * | 2017-06-19 | 2017-09-08 | 合肥球球科技有限公司 | A kind of civil engineering fiber section bar |
| CN110655770A (en) * | 2018-06-29 | 2020-01-07 | 合肥杰事杰新材料股份有限公司 | High-performance carbon fiber reinforced resin and preparation method thereof |
| CN111662519A (en) * | 2020-05-25 | 2020-09-15 | 安徽普偌森环保科技有限公司 | Integrated sewage treatment equipment instrument protective cover |
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| CN102093734A (en) * | 2010-12-31 | 2011-06-15 | 杭州师范大学 | Wood-plastic composite material and preparation method thereof |
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Denomination of invention: Unsaturated polyester fiber reinforced bulk molding compound and preparation method thereof Effective date of registration: 20200313 Granted publication date: 20150708 Pledgee: Kunming Industrial Development and Investment Co., Ltd Pledgor: KUNMING PURETOWN ENVIRONMENTAL TECH Co.,Ltd. Registration number: Y2020530000006 |