CN104130566B - A kind of polyurethane resin BMC and preparation method thereof - Google Patents
A kind of polyurethane resin BMC and preparation method thereof Download PDFInfo
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- CN104130566B CN104130566B CN201310228896.4A CN201310228896A CN104130566B CN 104130566 B CN104130566 B CN 104130566B CN 201310228896 A CN201310228896 A CN 201310228896A CN 104130566 B CN104130566 B CN 104130566B
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Abstract
The invention discloses a kind of polyurethane resin BMC and preparation method thereof, this moulding compound is made up of the raw material of following parts by weight: be made up of the raw material of following parts by weight: polyurethane expect in vain 10～15 parts, 9.5～14.25 parts of the black material of polyurethane, filler 50.75～70.5 parts, glass fibre 10～20 parts, surface modification auxiliary agent 0.5～2 part, dispersant 0.5～1.5 part, inner pattern releasing agent applicable 2.5～4 parts。The polyurethane resin BMC of the present invention, with polyurethane resin for matrix, adds glass fibre, filler, surface modification auxiliary agent, dispersant, inner pattern releasing agent applicable, makes the BMC of environment-friendly type, have splendid environmental-protecting performance；In high temperature environments, not discharging irritative gas, benzene,toluene,xylene content is extremely low, and TVOC is less than 30 μ g C/g；It is applied to bus interior part, improves the environmental-protecting performance of bus interior part, and then promote the air quality within passenger vehicle。
Description
Technical field
The invention belongs to moulding compound technical field, be specifically related to a kind of polyurethane resin BMC and preparation method thereof。
Background technology
BMC (BMC) is to be added with the resin compound dipping chopped fiber of various auxiliary agent and the bulk premix material that formed, is the intermediate materials of composite product。According to different applications, the BMC composite of preparation is accurately controlled size, anti-flammability and tracking resistance are good, there is significantly high dielectric strength, corrosion resistance and resistance to soiling, mechanical performance is remarkable, and contractility is low and color stability, adapts to various moulding process, the multiple product requirement to performance can be met, therefore increasingly receive the concern of users。
Enhancing along with people's environmental consciousness and the attention to self health status, people increasingly pay attention to ambient air quality, and passenger vehicle is as applying general walking-replacing tool gradually, and its environment inside car quality also increasingly receives the concern of people。At present, bus interior part is normally used is unsaturated polyester resin group shape molding composite product, self-characteristic due to unsaturated polyester resin, in high temperature environments, unsaturated polyester resin group shape molding composite can discharge intense stimulus gas, has had a strong impact on the healthy of in-vehicle air environment and vehicle occupant；Unsaturated polyester resin bulk molding compound with the addition of a large amount of solvent in process of production, cause product TVOC(total volatile organic compound) severe overweight, reach setting more than 20 times, benzene,toluene,xylene content is higher, it is impossible to meet the requirement of people's feature of environmental protection for bus interior part and in-car air quality。
Summary of the invention
It is an object of the invention to provide a kind of polyurethane resin BMC, do not discharge penetrating odor, there is splendid environmental-protecting performance。
The preparation method that second purpose of the present invention is to provide a kind of polyurethane resin BMC。
In order to realize object above, the technical solution adopted in the present invention is: a kind of polyurethane resin BMC, is made up of the raw material of following parts by weight: polyurethane expect in vain 10～15 parts, 9.5～14.25 parts of the black material of polyurethane, filler 50.75～70.5 parts, glass fibre 10～20 parts, surface modification auxiliary agent 0.5～2 part, dispersant 0.5～1.5 part, inner pattern releasing agent applicable 2.5～4 parts。
Described polyurethane expects to be made up of the raw material of following parts by weight in vain: 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, is mainly composed of polyether polyol。
The black material of described polyurethane is Desmodur1511L。Described Desmodur1511L is commercial goods, and manufacturer is Bayer Material Science company limited, is mainly composed of isocyanates。
Described filler is precipitated calcium carbonate, ground calcium carbonate or Pulvis Talci。
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 dispersant is BYK-W9010。Described BYK-W9010 is commercial goods, and manufacturer is Byk Chemie GmbH。
Described inner pattern releasing agent applicable is zinc stearate。
The polyurethane resin BMC of the present invention, wherein, shrinkage factor when filler can reduce molded plastic article molding and coefficient of thermal expansion, improve resin viscosity and process industrial art performance, can also reduce cost simultaneously；Glass fibre plays a part to improve molded plastic article mechanical property；Surface modification auxiliary agent is used for reducing molded plastic article shrinkage factor, improves surface quality；Dispersant can accelerate the resin wet processes to filler, shortens the dispensing time, improves and stablizes simultaneously filler dispersion in resin, reduce resin paste viscosity, improves the wellability to glass fibre, improves material mobility；Reduce the viscosity fluctuation of different batches resin paste。
The preparation method of a kind of above-mentioned polyurethane resin BMC, comprises the following steps:
1) take polyurethane in proportion to expect in vain to add in dispersion machine, sequentially adding surface modification auxiliary agent, dispersant, inner pattern releasing agent applicable, the black material of polyurethane, by internal for dispersion machine evacuation, vacuum is-0.05～-0.08MPa, continue to disperse 20～30min under 1200～1500r/min, obtain resin paste；
2) step 1) gained resin paste is put in kneader, be sequentially added into filler, glass fibre, by internal for kneader evacuation, mediate 20～30min, to obtain final product。
The polyurethane resin BMC of the present invention, with polyurethane resin for matrix, add glass fibre, filler, surface modification auxiliary agent, dispersant, inner pattern releasing agent applicable, make the BMC of environment-friendly type, reach following environmental requirement: abnormal smells from the patient 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 gC/g；In high temperature environments, not discharging irritative gas, benzene,toluene,xylene content extremely low (almost inspection does not measure), TVOC is less than 30 μ gC/g；It is applied to bus interior part, improves the environmental-protecting performance of bus interior part, and then promote the air quality within passenger vehicle, be conducive to that people's is healthy。
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated。
Embodiment 1
The polyurethane resin BMC of the present embodiment, is made up of the raw material of following parts by weight: polyurethane expect in vain 10 parts, 14.25 parts of the black material of polyurethane, precipitated calcium carbonate 60.0 parts, glass fibre 20 parts, polyethylene powder 0.5 part, BYK-W9010 dispersant 1.0 parts, zinc stearate 2.5 parts。Described polyurethane expects to be made up of the raw material of following parts by weight in vain: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts；The black material of described polyurethane is Desmodur1511L；Described glass fibre is alkali-free glass fibre, and length is 12～24mm；
The preparation method of the polyurethane resin BMC of the present embodiment, comprises the following steps:
1) take polyurethane in proportion to expect in vain to add in dispersion machine, sequentially adding polyethylene powder, BYK-W9010 dispersant, zinc stearate, the black material of polyurethane, by internal for dispersion machine evacuation, vacuum is-0.08MPa, continue to disperse 25min under 1200r/min, obtain resin paste；
2) step 1) gained resin paste is put in kneader, be sequentially added into precipitated calcium carbonate, glass fibre, by internal for kneader evacuation, mediate 30min, to obtain final product。
Embodiment 2
The polyurethane resin BMC of the present embodiment, is made up of the raw material of following parts by weight: polyurethane expect in vain 12 parts, 9.5 parts of the black material of polyurethane, precipitated calcium carbonate 70.5 parts, glass fibre 15 parts, polyethylene powder 2.0 parts, BYK-W9010 dispersant 0.5 part, zinc stearate 3.3 parts。Described polyurethane expects to be made up of the raw material of following parts by weight in vain: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts；The black material of described polyurethane is Desmodur1511L；Described glass fibre is alkali-free glass fibre, and length is 12～24mm；
The preparation method of the polyurethane resin BMC of the present embodiment, comprises the following steps:
1) take polyurethane in proportion to expect in vain to add in dispersion machine, sequentially adding polyethylene powder, BYK-W9010 dispersant, zinc stearate, the black material of polyurethane, by internal for dispersion machine evacuation, vacuum is-0.08MPa, continue to disperse 30min under 1400r/min, obtain resin paste；
2) step 1) gained resin paste is put in kneader, be sequentially added into ground calcium carbonate, glass fibre, by internal for kneader evacuation, mediate 20min, to obtain final product。
Embodiment 3
The polyurethane resin BMC of the present embodiment, is made up of the raw material of following parts by weight: polyurethane expect in vain 15 parts, 12 parts of the black material of polyurethane, precipitated calcium carbonate 50.75 parts, glass fibre 10 parts, polyethylene powder 1.3 parts, BYK-W9010 dispersant 1.5 parts, zinc stearate 4.0 parts。Described polyurethane expects to be made up of the raw material of following parts by weight in vain: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts；The black material of described polyurethane is Desmodur1511L；Described glass fibre is alkali-free glass fibre, and length is 12～24mm；
The preparation method of the polyurethane resin BMC of the present embodiment, comprises the following steps:
1) take polyurethane in proportion to expect in vain to add in dispersion machine, sequentially adding polyethylene powder, BYK-W9010 dispersant, zinc stearate, the black material of polyurethane, by internal for dispersion machine evacuation, vacuum is-0.07MPa, continue to disperse 20min under 1500r/min, obtain resin paste；
2) step 1) gained resin paste is put in kneader, be sequentially added into precipitated calcium carbonate, glass fibre, by internal for kneader evacuation, mediate 25min, to obtain final product。
Experimental example
Embodiment 1～3 gained polyurethane resin BMC is carried out environmental protection tests by this experimental example, and result is as shown in table 1。Wherein, comparative example is commercial goods。
Table 1 embodiment 1～3 gained polyurethane resin BMC environmental protection tests result
Note: ND represents and does not detect。
From upper table 1 it can be seen that the embodiment of the present invention 1～3 gained polyurethane resin BMC, compared with comparative example, 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 1st/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 polyurethane resin BMC has the environmental-protecting performance of excellence。
Claims (7)
1. a polyurethane resin BMC, it is characterised in that: be made up of the raw material of following parts by weight: polyurethane expect in vain 10～15 parts, 9.5～14.25 parts of the black material of polyurethane, filler 50.75～70.5 parts, glass fibre 10～20 parts, surface modification auxiliary agent 0.5～2 part, dispersant 0.5～1.5 part, inner pattern releasing agent applicable 2.5～4 parts；Described polyurethane expects to be made up of the raw material of following parts by weight in vain: the Baydur38BD030 of 96 parts, the Baydur38BD032 of 8 parts, the Baydur38BD030-1 of 5 parts；The black material of described polyurethane is Desmodur1511L；Described surface modification auxiliary agent is polyethylene powder。
2. polyurethane resin BMC according to claim 1, it is characterised in that: described filler is precipitated calcium carbonate, ground calcium carbonate or Pulvis Talci。
3. polyurethane resin BMC according to claim 1, it is characterised in that: described glass fibre is alkali-free glass fibre。
4. the polyurethane resin BMC according to claim 1 or 3, it is characterised in that: the length of described glass fibre is 12～24mm。
5. polyurethane resin BMC according to claim 1, it is characterised in that: described dispersant is BYK-W9010。
6. polyurethane resin BMC according to claim 1, it is characterised in that: described inner pattern releasing agent applicable is zinc stearate。
7. the preparation method of a polyurethane resin BMC as claimed in claim 1, it is characterised in that: comprise the following steps:
1) take polyurethane in proportion to expect in vain to add in dispersion machine, sequentially adding surface modification auxiliary agent, dispersant, inner pattern releasing agent applicable, the black material of polyurethane, by internal for dispersion machine evacuation, vacuum is-0.05～-0.08MPa, continue to disperse 20～30min under 1200～1500r/min, obtain resin paste；
2) by step 1) gained resin paste puts in kneader, is sequentially added into filler, glass fibre, and by internal for kneader evacuation, mediate 20～30min, to obtain final product。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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 CN104130566A (en) | 2014-11-05 |
| CN104130566B true CN104130566B (en) | 2016-06-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113999515B (en) * | 2021-12-10 | 2023-04-07 | 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 |
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- 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 |
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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 |