CN104130566A - Polyurethane resin bulk molding compound and preparation method thereof - Google Patents
Polyurethane resin bulk molding compound and preparation method thereof Download PDFInfo
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- CN104130566A CN104130566A CN201310228896.4A CN201310228896A CN104130566A CN 104130566 A CN104130566 A CN 104130566A CN 201310228896 A CN201310228896 A CN 201310228896A CN 104130566 A CN104130566 A CN 104130566A
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Abstract
The invention discloses a polyurethane resin bulk molding compound and a preparation method thereof. The molding compound comprises the following raw materials by weight: 10 to 15 parts of a white polyurethane material, 9.5 to 14.25 parts of a black polyurethane material, 50.75 to 70.5 parts of a filling material, 10 to 20 parts of a glass fiber, 0.5 to 2 parts of a surface modification aid, 0.5 to 1.5 parts of a dispersant and 2.5 to 4 parts of an internal releasing agent. According to the invention, a polyurethane resin is used as a substrate and the glass fiber, the filling material, the surface modification aid, the dispersant and the internal releasing agent are added so as to prepare the environment-friendly bulk molding compound which has excellent environmental protection performance. In an environment with a high temperature, the bulk molding compound does not release irritant gas, contains an extremely small amount of benzene, toluene and xylene and has TVOC of less than 30 mu g C/g; the bulk molding compound is applicable to interior decorative parts of passenger cars and improves the environmental protection performance of interior decorative parts of passenger cars, thereby enhancing air quality in passenger cars.
Description
Technical field
The invention belongs to moulding compound technical field, be specifically related to a kind of urethane resin Bulk Molding Compound and preparation method thereof.
Background technology
Bulk Molding Compound (BMC) is to be added with the resin compound dipping staple fibre of various auxiliary agents and the bulk Preblend that forms, is the intermediate materials of composite product.According to different Application Areass, the Bulk Molding Compound matrix material of preparation is controlling dimension accurately, flame retardant resistance and tracking resistance are good, there is very high dielectric strength, erosion resistance and resistance to soiling, mechanical property is remarkable, and shrinkability is low and color and luster stable, adapts to various moulding processs, can meet the requirement of multiple product to performance, therefore more and more receive users' concern.
Along with enhancing and the attention to self health status of people's environmental consciousness, people more and more pay attention to ambient air quality, and passenger vehicle is as applying gradually general walking-replacing tool, and its environment inside car quality also more and more receives people's concern.At present, bus interior part is normally used is unsaturated polyester resin base Bulk Molding Compound composite products, self-characteristic due to unsaturated polyester resin, under hot environment, unsaturated polyester resin base Bulk Molding Compound matrix material can discharge intense stimulus gas, has had a strong impact on the healthy of the interior air ambient of car and Che Nei people; Unsaturated polyester resin bulk molding compound has added a large amount of solvents in process of production, cause product TVOC(total volatile organic compound) severe overweight, reach prescribed value more than 20 times, benzene,toluene,xylene content is higher, can not meet people for the feature of environmental protection of bus interior part and the requirement of in-car air quality.
Summary of the invention
The object of this invention is to provide a kind of urethane resin Bulk Molding Compound, do not discharge irritating smell, there is splendid environmental-protecting performance.
Second object of the present invention is to provide a kind of preparation method of urethane resin Bulk Molding Compound.
In order to realize above object, the technical solution adopted in the present invention is: a kind of urethane resin Bulk Molding Compound, is comprised of the raw material of following parts by weight: urethane is expected 10～15 parts, 9.5～14.25 parts, the black material of urethane, 50.75～70.5 parts of fillers, 10～20 parts, glass fibre, 0.5～2 part of surface modification auxiliary agent, 0.5～1.5 part of dispersion agent, 2.5～4 parts of inner pattern releasing agent applicables in vain.
The white material of described urethane is comprised of the raw material of following parts by weight: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts.Described Baydur38BD030, Baydur38BD032, Baydur38BD030-1 are commercial goods, and manufacturer is Bayer Material Science company limited, and main component is polyether glycol.
The black material of described urethane is Desmodur1511L.Described Desmodur1511L is commercial goods, and manufacturer is Bayer Material Science company limited, and main component is isocyanic ester.
Described filler is light calcium carbonate, water-ground limestone or talcum powder.
Described glass fibre is alkali free glass fibre.
The length of described glass fibre is 24mm.
Described surface modification auxiliary agent is polyethylene powder.
Described dispersion agent is BYK-W9010.Described BYK-W9010 is commercial goods, Wei Bike Chemical Co., Ltd. of manufacturer.
Described inner pattern releasing agent applicable is Zinic stearas.
Urethane resin Bulk Molding Compound of the present invention, wherein, shrinking percentage when filler can reduce moulding compound formed product and coefficient of thermal expansion, improve resin viscosity and process industrial art performance, can also reduce costs simultaneously; Glass fibre plays a part to improve moulding compound product mechanical property; Surface modification auxiliary agent, for reducing moulding compound contractibility, improves surface quality; Dispersion agent can be accelerated the wet processes of resin to filler, shortens the batching time, improves and the dispersion of stable filler in resin simultaneously, reduces resin paste viscosity, improves the wetting property to glass fibre, improves material mobility; Reduce the viscosity fluctuation of different batches resin paste.
A preparation method for above-mentioned urethane resin Bulk Molding Compound, comprises the following steps:
1) getting in proportion the white material of urethane adds in dispersion machine, add successively surface modification auxiliary agent, dispersion agent, inner pattern releasing agent applicable, the black material of urethane again, dispersion machine inside is vacuumized, vacuum tightness is-0.05～-0.08MPa, under 1200～1500r/min, continue to disperse 20～30min, obtain resin paste;
2) step 1) gained resin paste is put into kneader, add successively filler, glass fibre, kneader inside is vacuumized, mediate 20～30min, obtain.
Urethane resin Bulk Molding Compound of the present invention, take urethane resin as matrix, add glass fibre, filler, surface modification auxiliary agent, dispersion agent, inner pattern releasing agent applicable, make the Bulk Molding Compound of environment-friendly type, reach following environmental requirement: smell is less than 3.5 grades, formaldehyde < 10mg/kg, benzene < 5 μ g/g, toluene < 5 μ g/g, dimethylbenzene < 15 μ g/g, atomization≤2mg, TVOC < 50 μ g C/g; Under hot environment, do not discharge irritant gas, benzene,toluene,xylene content extremely low (almost inspection does not measure), TVOC is less than 30 μ g C/g; Be applied to bus interior part, promoted the environmental-protecting performance of bus interior part, and then promote the Air quality of passenger vehicle inside, be conducive to the healthy of people.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
The urethane resin Bulk Molding Compound of the present embodiment, is comprised of the raw material of following parts by weight: urethane is expected 10 parts, 14.25 parts, the black material of urethane, 60.0 parts of light calcium carbonates, 20 parts, glass fibre, 0.5 part, polyethylene powder, 1.0 parts of BYK-W9010 dispersion agents, 2.5 parts of Zinic stearass in vain.The white material of described urethane is comprised of the raw material of following parts by weight: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts; The black material of described urethane is Desmodur1511L; Described glass fibre is alkali free glass fibre, and length is 12～24mm;
The preparation method of the urethane resin Bulk Molding Compound of the present embodiment, comprises the following steps:
1) getting in proportion the white material of urethane adds in dispersion machine, add successively polyethylene powder, BYK-W9010 dispersion agent, Zinic stearas, the black material of urethane again, dispersion machine inside is vacuumized, vacuum tightness is-0.08MPa, under 1200r/min, continue to disperse 25min, obtain resin paste;
2) step 1) gained resin paste is put into kneader, add successively light calcium carbonate, glass fibre, kneader inside is vacuumized, mediate 30min, obtain.
Embodiment 2
The urethane resin Bulk Molding Compound of the present embodiment, is comprised of the raw material of following parts by weight: urethane is expected 12 parts, 9.5 parts, the black material of urethane, 70.5 parts of light calcium carbonates, 15 parts, glass fibre, 2.0 parts, polyethylene powder, 0.5 part of BYK-W9010 dispersion agent, 3.3 parts of Zinic stearass in vain.The white material of described urethane is comprised of the raw material of following parts by weight: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts; The black material of described urethane is Desmodur1511L; Described glass fibre is alkali free glass fibre, and length is 12～24mm;
The preparation method of the urethane resin Bulk Molding Compound of the present embodiment, comprises the following steps:
1) getting in proportion the white material of urethane adds in dispersion machine, add successively polyethylene powder, BYK-W9010 dispersion agent, Zinic stearas, the black material of urethane again, dispersion machine inside is vacuumized, vacuum tightness is-0.08MPa, under 1400r/min, continue to disperse 30min, obtain resin paste;
2) step 1) gained resin paste is put into kneader, add successively water-ground limestone, glass fibre, kneader inside is vacuumized, mediate 20min, obtain.
Embodiment 3
The urethane resin Bulk Molding Compound of the present embodiment, is comprised of the raw material of following parts by weight: urethane is expected 15 parts, 12 parts, the black material of urethane, 50.75 parts of light calcium carbonates, 10 parts, glass fibre, 1.3 parts, polyethylene powder, 1.5 parts of BYK-W9010 dispersion agents, 4.0 parts of Zinic stearass in vain.The white material of described urethane is comprised of the raw material of following parts by weight: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts; The black material of described urethane is Desmodur1511L; Described glass fibre is alkali free glass fibre, and length is 12～24mm;
The preparation method of the urethane resin Bulk Molding Compound of the present embodiment, comprises the following steps:
1) getting in proportion the white material of urethane adds in dispersion machine, add successively polyethylene powder, BYK-W9010 dispersion agent, Zinic stearas, the black material of urethane again, dispersion machine inside is vacuumized, vacuum tightness is-0.07MPa, under 1500r/min, continue to disperse 20min, obtain resin paste;
2) step 1) gained resin paste is put into kneader, add successively light calcium carbonate, glass fibre, kneader inside is vacuumized, mediate 25min, obtain.
Experimental example
This experimental example carries out environmental protection tests to embodiment 1～3 gained urethane resin Bulk Molding Compound, and result is as shown in table 1.Wherein, comparative example is commercial goods.
Table 1 embodiment 1～3 gained urethane resin Bulk Molding Compound environmental protection tests result
Note: ND represents not detect.
From upper table 1, the embodiment of the present invention 1～3 gained urethane resin Bulk Molding Compound, compares with comparative example, and formaldehyde, toluene and dimethylbenzene all do not detect, and the content of TVOC and benzene is well below comparative example; Haze value is less than 1/20th of comparative example; Smell test results is lower 4 grades than comparative example, illustrates that the embodiment of the present invention 1～3 gained urethane resin Bulk Molding Compound has excellent environmental-protecting performance.
Claims (10)
1. a urethane resin Bulk Molding Compound, is characterized in that: the raw material by following parts by weight forms: urethane is expected 10～15 parts, 9.5～14.25 parts, the black material of urethane, 50.75～70.5 parts of fillers, 10～20 parts, glass fibre, 0.5～2 part of surface modification auxiliary agent, 0.5～1.5 part of dispersion agent, 2.5～4 parts of inner pattern releasing agent applicables in vain.
2. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: the white material of described urethane is comprised of the raw material of following parts by weight: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts.
3. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: the black material of described urethane is Desmodur1511L.
4. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: described filler is light calcium carbonate, water-ground limestone or talcum powder.
5. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: described glass fibre is alkali free glass fibre.
6. urethane resin Bulk Molding Compound according to claim 1 or 5, is characterized in that: the length of described glass fibre is 12～24mm.
7. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: described surface modification auxiliary agent is polyethylene powder.
8. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: described dispersion agent is BYK-W9010.
9. urethane resin Bulk Molding Compound according to claim 1, is characterized in that: described inner pattern releasing agent applicable is Zinic stearas.
10. a preparation method for urethane resin Bulk Molding Compound as claimed in claim 1, is characterized in that: comprise the following steps:
1) getting in proportion the white material of urethane adds in dispersion machine, add successively surface modification auxiliary agent, dispersion agent, inner pattern releasing agent applicable, the black material of urethane again, dispersion machine inside is vacuumized, vacuum tightness is-0.05～-0.08MPa, under 1200～1500r/min, continue to disperse 20～30min, obtain resin paste;
2) step 1) gained resin paste is put into kneader, add successively filler, glass fibre, kneader inside is vacuumized, mediate 20～30min, obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228896.4A CN104130566B (en) | 2013-06-07 | 2013-06-07 | A kind of polyurethane resin BMC and preparation method thereof |
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| CN201310228896.4A CN104130566B (en) | 2013-06-07 | 2013-06-07 | A kind of polyurethane resin BMC and preparation method thereof |
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| CN104130566A true CN104130566A (en) | 2014-11-05 |
| CN104130566B CN104130566B (en) | 2016-06-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518383A (en) * | 2020-06-08 | 2020-08-11 | 常熟市华邦汽车复合材料有限公司 | SMC molding compound with strong wear resistance and preparation method thereof |
| CN113999515A (en) * | 2021-12-10 | 2022-02-01 | 南京经略复合材料有限公司 | Glass fiber reinforced polyurethane material, supporting beam and preparation process of supporting beam |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1413814A (en) * | 2001-10-23 | 2003-04-30 | 旭玻璃纤维股份有限公司 | Chopped strand and unsaturated polyester resin BMC moulding product made by it |
| CN103228692A (en) * | 2010-10-14 | 2013-07-31 | 提克纳有限公司 | Coupled glass-fiber reinforced polyoxymethylene |
-
2013
- 2013-06-07 CN CN201310228896.4A patent/CN104130566B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1413814A (en) * | 2001-10-23 | 2003-04-30 | 旭玻璃纤维股份有限公司 | Chopped strand and unsaturated polyester resin BMC moulding product made by it |
| CN103228692A (en) * | 2010-10-14 | 2013-07-31 | 提克纳有限公司 | Coupled glass-fiber reinforced polyoxymethylene |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518383A (en) * | 2020-06-08 | 2020-08-11 | 常熟市华邦汽车复合材料有限公司 | SMC molding compound with strong wear resistance and preparation method thereof |
| CN113999515A (en) * | 2021-12-10 | 2022-02-01 | 南京经略复合材料有限公司 | Glass fiber reinforced polyurethane material, supporting beam and preparation process of supporting beam |
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| Publication number | Publication date |
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| CN104130566B (en) | 2016-06-22 |
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Effective date of registration: 20181207 Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Passenger Car Co., Ltd., Zhengzhou Address before: 450001 No. 69 Eighth Avenue, Zhengzhou National Economic and Technological Development Zone, Henan Province Patentee before: Zhengzhou Jingyida Auto Parts Co., Ltd. |
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Granted publication date: 20160622 Termination date: 20210607 |