CN104927001A - High-weather-proof bulk molding compound - Google Patents
High-weather-proof bulk molding compound Download PDFInfo
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- CN104927001A CN104927001A CN201510433477.3A CN201510433477A CN104927001A CN 104927001 A CN104927001 A CN 104927001A CN 201510433477 A CN201510433477 A CN 201510433477A CN 104927001 A CN104927001 A CN 104927001A
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- molding compound
- bulk molding
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Abstract
The invention discloses a high-weather-proof bulk molding compound. The high-weather-proof bulk molding compound comprises, by weight, 50-90 parts of hexahydrophthalic acid type unsaturated resin, 10-50 parts of low-shrinkage agents, 1-2 parts of curing agents, 2-6 parts of release agents, 2-6 parts of cross-linking agents, 80-250 parts of inorganic filler, and 40-150 parts of fiberglass. Compared with the prior art, the high-weather-proof bulk molding compound has the advantages that weather resistance is quite high, mechanical property, physical property and chemical property can be maintained for a long time in any environments, and yellowing, embrittlement, cracking and performance reduction are avoided.
Description
Technical field
The invention belongs to Material Field, be specifically related to a kind of high durable type Bulk Molding Compound.
Background technology
After unsaturated polyester resin (UPR) solidification, in use can turn yellow, surface staining, embrittlement so that the catabiosis such as be full of cracks, its mechanical property and other physics, chemical property also decline thereupon.Cause a lot of because have of material aging, wherein topmost external factor is the change of ultraviolet, moist environment, temperature, and the important internal factor that to be ultraviolet impel it aging of the phenyl ring in general UPR molecular structure.This is that easy absorb light quantum excites owing to containing phenyl functional group's structure in its molecular chain, the cause that make molecular chain generation scission of link, be cross-linked etc. is reacted.And not containing phenyl ring in cyclohexane diacid type unsaturated polyester resin, under ultraviolet irradiation, not easily absorb light quantum, produces excited state and then photochemical reaction occurs, so less there is scission of link, the destruction such as crosslinked under the condition of light oxygen, it is made to maintain original mechanical property better.Therefore, cyclohexane diacid type unsaturated polyester resin is used to reduce phenyl ring content in polyester molecule to improve goods weathering resistance.The present invention selects cyclohexane diacid type unsaturated polyester resin to prepare the BMC of high durable as matrix resin.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high durable type Bulk Molding Compound, to solve the problem such as easy jaundice, embrittlement, be full of cracks and performance reduction that currently available products exists.
For solving the problem, the technical solution used in the present invention is as follows:
A kind of high durable type Bulk Molding Compound, it comprises the component of following parts by weight:
Wherein, described cyclohexane diacid type unsaturated polyester is Isosorbide-5-Nitrae-cyclohexyl dicarboxylic acid type unsaturated polyester.
Wherein, described shrinking agent is any one or a few the combination in vinyl acetate resin (PVAc), polystyrene (PSt), polymethylmethacrylate (PMMA), polyethylene (PE) and polyvinyl chloride (PVC).
Wherein, described solidifying agent is TBPB.
Wherein, described releasing agent is Zinic stearas or calcium stearate.
Wherein, described linking agent is vinylbenzene.
Wherein, described mineral filler is aluminium hydroxide or calcium carbonate.
Wherein, described glass fibre is the alkali free glass fibre of 3 ~ 24mm.
Wherein, preferred version of the present invention is:
Beneficial effect:
Compared with prior art, product of the present invention has high weather resistance, all can keep its mechanical property, physicals and chemical property for a long time under various environmental conditions, there will not be the problems such as jaundice, embrittlement, be full of cracks and performance reduction.
Embodiment
According to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, the content described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1
A kind of high durable type Bulk Molding Compound (BMC), this Bulk Molding Compound is obtained through polyreaction by the raw material of following weight part, wherein:
Preparation process is as follows:
1, the preparation of resin paste:
First Isosorbide-5-Nitrae-cyclohexyl dicarboxylic acid type unsaturated polyester, PVAc are poured in stainless steel vessel respectively, open high speed dispersor setting speed to 1200 rev/min, stir 2 minutes; Add TBPB, the rotating speed transfer 8 minutes of 1200 revs/min.
2, mediate:
In kneader, add calcium carbonate, Zinic stearas, close kneading cover, and nip roll rotating speed is beaten to fast, mediate the resin paste poured step 2 after 5 minutes into and mix, mediate 6 minutes in quick rotating speed, then add glass fibre, kneader rotating speed is beaten at a slow speed, mediates 9 minutes.Discharging is packed.
3, standard mechanical property examination bar is suppressed.The weather-proof accelerated testing cabinet of ultraviolet (light source is UV-A340 luminescent lamp) is used to carry out test 1300 hours data measureds as following table to mechanical property examination bar:
| Project | Stretching/Mpa | Bending/Mpa | Impact/KJ/ ㎡ |
| Before test | 44.3 | 100.5 | 35.6 |
| After test | 35.7 | 92.6 | 32.9 |
| Retention rate | 80.59％ | 92.14％ | 92.42％ |
Comparison aberration Δ E:1.52 before and after test.
Comparative example 1
A kind of Bulk Molding Compound (BMC), this Bulk Molding Compound is obtained through polyreaction by the raw material of following weight part, wherein:
Preparation process is as follows:
1, the preparation of resin paste:
First isophthalic resin, PVAc are poured in stainless steel vessel respectively, open high speed dispersor setting speed to 1200 rev/min, stir 2 minutes; Add TBPB, the rotating speed transfer 8 minutes of 1200 revs/min
2, mediate:
In kneader, add calcium carbonate, Zinic stearas, close kneading cover, and nip roll rotating speed is beaten to fast, mediate the resin paste poured step 2 after 5 minutes into and mix, mediate 6 minutes in quick rotating speed, then add glass fibre, kneader rotating speed is beaten at a slow speed, mediates 9 minutes.Discharging is packed.
3, standard mechanical property examination bar is suppressed.Use the weather-proof accelerated testing cabinet of ultraviolet (light source is UV-A340 luminescent lamp)
1300 hours data measureds are tested to mechanical property examination bar as follows:
| Project | Stretching/Mpa | Bending/Mpa | Impact/KJ/ ㎡ |
| Before test | 35.2 | 110.4 | 39.5 |
| After test | 17.4 | 63.2 | 23.3 |
| Retention rate | 49.43％ | 57.25％ | 58.99％ |
Comparison aberration Δ E:5.63 before and after test.
From comparing of embodiment 1 and comparative example 1: the present invention selects the BMC prepared as matrix resin by cyclohexane diacid type unsaturated polyester resin, each strength retention ratio after aging is apparently higher than the BMC prepared as matrix resin by isophthalic resin, and mechanical property intensity is also substantially qualified.Therefore reach not only weather-proof but also keep the object of advantage of intensity.
Claims (8)
1. a high durable type Bulk Molding Compound, is characterized in that, it comprises the component of following parts by weight:
2. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described cyclohexane diacid type unsaturated polyester is Isosorbide-5-Nitrae-cyclohexyl dicarboxylic acid type unsaturated polyester.
3. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described shrinking agent is any one or a few the combination in vinyl acetate resin, polystyrene, polymethylmethacrylate, polyethylene and polyvinyl chloride.
4. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described solidifying agent is TBPB.
5. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described releasing agent is Zinic stearas or calcium stearate.
6. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described linking agent is vinylbenzene.
7. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described mineral filler is aluminium hydroxide or calcium carbonate.
8. high durable type Bulk Molding Compound according to claim 1, is characterized in that, described glass fibre is the alkali free glass fibre of 3 ~ 24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433477.3A CN104927001A (en) | 2015-07-22 | 2015-07-22 | High-weather-proof bulk molding compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433477.3A CN104927001A (en) | 2015-07-22 | 2015-07-22 | High-weather-proof bulk molding compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104927001A true CN104927001A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510433477.3A Pending CN104927001A (en) | 2015-07-22 | 2015-07-22 | High-weather-proof bulk molding compound |
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| CN (1) | CN104927001A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802172A (en) * | 2016-05-27 | 2016-07-27 | 江苏兆鋆新材料股份有限公司 | Low-shrinkage stable bulk molding compound |
| CN106832842A (en) * | 2016-12-28 | 2017-06-13 | 广东延春高新材料科技股份有限公司 | A kind of flame-retarded unsaturated polyester resin fiberglass |
| CN108084679A (en) * | 2017-11-25 | 2018-05-29 | 黄风山 | Alumina filled UP formulas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709141A (en) * | 2009-11-24 | 2010-05-19 | 河南省电力公司南阳供电公司 | Formula and preparation method of unsaturated polyester resin bulk molding compound (BMC) |
| CN102643524A (en) * | 2012-04-24 | 2012-08-22 | 上海昭和高分子有限公司 | Unsaturated polyester bulk molding compound as well as method and application thereof |
| CN102816421A (en) * | 2011-06-10 | 2012-12-12 | 泰州科逸新材料有限公司 | Large-particle granite imitated bulk molding compound and molding method thereof |
| CN103724959A (en) * | 2014-01-08 | 2014-04-16 | 无锡新宏泰电器科技股份有限公司 | BMC (Bulk Moulding Compound) material with weather resistance and preparation method of BMC material |
-
2015
- 2015-07-22 CN CN201510433477.3A patent/CN104927001A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709141A (en) * | 2009-11-24 | 2010-05-19 | 河南省电力公司南阳供电公司 | Formula and preparation method of unsaturated polyester resin bulk molding compound (BMC) |
| CN102816421A (en) * | 2011-06-10 | 2012-12-12 | 泰州科逸新材料有限公司 | Large-particle granite imitated bulk molding compound and molding method thereof |
| CN102643524A (en) * | 2012-04-24 | 2012-08-22 | 上海昭和高分子有限公司 | Unsaturated polyester bulk molding compound as well as method and application thereof |
| CN103724959A (en) * | 2014-01-08 | 2014-04-16 | 无锡新宏泰电器科技股份有限公司 | BMC (Bulk Moulding Compound) material with weather resistance and preparation method of BMC material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802172A (en) * | 2016-05-27 | 2016-07-27 | 江苏兆鋆新材料股份有限公司 | Low-shrinkage stable bulk molding compound |
| CN106832842A (en) * | 2016-12-28 | 2017-06-13 | 广东延春高新材料科技股份有限公司 | A kind of flame-retarded unsaturated polyester resin fiberglass |
| CN108084679A (en) * | 2017-11-25 | 2018-05-29 | 黄风山 | Alumina filled UP formulas |
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Application publication date: 20150923 |