CN100569842C - A kind of polypropylene resin composite and preparation method thereof - Google Patents
A kind of polypropylene resin composite and preparation method thereof Download PDFInfo
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- CN100569842C CN100569842C CNB2006100834333A CN200610083433A CN100569842C CN 100569842 C CN100569842 C CN 100569842C CN B2006100834333 A CNB2006100834333 A CN B2006100834333A CN 200610083433 A CN200610083433 A CN 200610083433A CN 100569842 C CN100569842 C CN 100569842C
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Abstract
A kind of polypropylene resin composite comprises the polypropylene of 50.5～91.0 quality %, the petroleum resin of 8.0～49.0 quality %, the transparent agent of 0.1～0.3 quality % and the silicon-dioxide of 0.05～0.4 quality %.Described polypropylene resin composite has higher intensity and rigidity, the transparency is good, surface smoothness is high, is suitable for the injection moulding of thin-walled transparent article.
Description
Technical field
The present invention is polyolefine resin composition and preparation method thereof, specifically, is a kind of polypropylene resin composite and preparation method thereof.
Background technology
Polypropylene (PP) has low price, density is low, chemical resistance good, free from extraneous odour, nontoxic, good heat resistance, easy advantage such as machine-shaping.But weak point is also arranged, mainly show as poor, the goods of the transparency and lack aesthetic feeling, especially the application at packaging field is very limited.Interpolation nucleator etc. can improve the transparency of PP.But the intensity and the rigidity of transparent polypropylene are lower, and goods are thicker, are difficult to enter traditional Application Areas of transparent polystyrene.
CN1415655A discloses a kind of preparation method of transparent polypropylene, use an alkali metal salt of rosin resin acid to be nucleator, and adding new LDPE (film grade) or linear low density polyethylene improve the dispersiveness of nucleator in polypropylene in homo-polypropylene, enhance the transparency.But the mist degree of the product of its preparation is more than 17%, and transparency is still lower.
CN1369519A joins talcum powder, polynite or pigment dyestuff in the conventional nucleator, form composite nucleator, the nucleator that this is composite adds in the polypropylene, can be made into the transparency height, mist degree is not more than 10% polypropene composition, but this patent does not provide the concrete physical performance data of the polypropene composition of preparation.
CN1304955A discloses a kind of film or thin slice of polypropylene resin composite preparation.Described film comprises bottom that polypropylene resin composite forms and the upper layer that is formed by acronal, described bottom comprise the propene polymer of 80～95 weight % and 5～20 weight % not with the terpine resin of polar group and/or not with the petroleum resin of polar group, the melting index of described polypropylene under 230 ℃, 2.16kg load is 0.1～500g/10min, the pentavalent degree of isotacticity is 0.97～0.995, and the degree of crystallinity of contained boiling heptane insoluble component is not less than 60%.Described film has good steam-preventing performance, the while transparency and rigidity and also is improved.
Summary of the invention
The purpose of this invention is to provide a kind of polypropylene resin composite, said composition has the transparency, rigidity and surface smoothness preferably.
Polypropylene resin composite provided by the invention comprises the polypropylene of 50.5～91.0 quality %, the petroleum resin of 8.0～49.0 quality %, the transparent agent of 0.1～0.3 quality % and the silicon-dioxide of 0.05～0.4 quality %.
Resin combination of the present invention adds petroleum resin and carries out modification in polypropylene, and adds fine grain silicon-dioxide in modification, and the polypropylene resin composite strength and stiffness that make are strengthened, and surface smoothness improves.
Embodiment
The present invention mixes acrylic resin and petroleum resin by suitable proportion, and adds transparent agent and silicon-dioxide when mixing, and carries out mixing granulator again, makes polypropylene resin composite.Said composition not only has the high transparency, but also has fabulous intensity and rigidity.The tensile strength of preferred resin combination can reach 45MPa, and flexural strength can reach 50MPa, and modulus in flexure can reach 2000MPa, and mist degree is less than 10%; Any surface finish of resin injection-molded item, smooth finish (45 ° of input angles) can reach more than 98.Simultaneously, the rheological of polypropylene resin composite of the present invention is good, thermotolerance is higher.
Preferred 52.0～76.3 quality % of polyacrylic content in the resin combination of the present invention, preferred 23.0～47.5 quality % of the content of petroleum resin.
The preferred isotatic polypropylene of described polypropylene, its degree of isotacticity is preferably 95～98%, preferred 0.2～3.0 gram of the melting index of polypropylene under 230 ℃, 2.16 kilogram load/10 minutes.
The preferred not petroleum resin of polar functionalities of described petroleum resin are as hydrogenated petroleum resin.The hydrogenation ratio of hydrogenated petroleum resin is preferably greater than 80%.The main trade mark has Escorez5300 series, Escorez5400 series, the Escorez5600 series of Exxon company, preferred Escorez5340.
The preferred glucitols compound of described transparent agent, the main trade mark has Millad3905, Millad3940, the Millad3988 of Milliken Chemical company; The Irgaclear DM of Switzerland Ciba company, the EC-1-55 of Japanese EC chemistry, preferred Millad3988, its chemical name are two (3,4-dimethyl-diphenylmethylene) sorbyl alcohols.
The silicon-dioxide of the preferred fine grain size of described silicon-dioxide, preferred 1～5 micron of its particle diameter, more preferably 1～3 micron.
For making the stable performance of resin, also need add conventional primary antioxidant and aid anti-oxidants during preparation.The preferred Hinered phenols antioxidant of described primary antioxidant, the main trade mark has Irganox1010, Irganox1076, Irganox1330, the Irganox3114 of Switzerland Ciba company, preferred Irganox1010; The preferred phosphite ester kind antioxidant of aid anti-oxidants, the main trade mark have Irgafos168, the Irgafos P-EPQ of Switzerland Ciba company, preferred Irgafos168.
The preparation method of polypropylene resin composite provided by the invention comprises polypropylene, petroleum resin, transparent agent and silicon-dioxide are mixed, and adds in the high-speed mixer to mix, and adds mixing granulator in the parallel parallel dual-screw extruding machine again.
The rotating speed of described high-speed mixer is 200～300 rev/mins.Preferred 2～10 minutes of the time of mixing raw material in high-speed mixer.Mixed raw material is sent into forcing machine and is extruded, selects grain, and preferred forcing machine is parallel parallel dual-screw extruding machine.During operation, controlling parallel each section of parallel dual-screw extruding machine temperature is 100～200 ℃, and screw speed is 200～250 rev/mins, and the feeding machine rotating speed is 30～80 rev/mins.
Described acrylic resin of the present invention is suitable to thin-walled transparent article such as the housing of instrument, the injection moulding of microwave oven special container.
Below by example in detail the present invention, but the present invention is not limited to this.
The performance of resin combination is measured by following method in the example.
Melting index (MI)-GB/T3682-2000,230 ℃ of probe temperatures, 2.16 kilograms of weighing loads.
Transmittance-GB/T2410-1989
Mist degree-GB/T2410-1989
Tensile strength-GB/T 1040-1992
Flexural strength-GB/T 9341-2000
Modulus in flexure-GB/T 9341-2000
Surface smoothness-GB/T8807-1988
Example 1
(the Luoyang Petrochemical polypropylene corporation is produced trade mark F401 with 3562 gram polypropylene, degree of isotacticity is 97.5%, melting index is 2.5g/10min), (Exxon company produces trade mark Escorez5340 to 400 gram hydrogenated petroleum resins, the hydrogenation ratio is 85%), 10 grams two (3,4-dimethyl-diphenylmethylene) sorbyl alcohol (Milliken Chemical company produces trade mark Millad3988), 8 gram primary antioxidant Irganox1010,16 gram aid anti-oxidants Irgafos168,4 gram particle diameters are that to add rotating speed successively be in 250 rev/mins the high-speed mixer to 1～3 micron silicon-dioxide (Degussa company produce the trade mark HY720), mixed 5 minutes, and formed uniform mixture.With mixture add mixing in the parallel parallel dual-screw extruding machine, extrude slivering, 105 ℃ of control twin screw extruder one district's temperature, 145 ℃ of two district's temperature, 179 ℃ of three district's temperature, 189 ℃ of four district's temperature, 195 ℃ of five district's temperature, 200 ℃ of six district's temperature, 197 ℃ of seven district's temperature, 196 ℃ of eight district's temperature, 200 rev/mins of screw speeds, 50 rev/mins of feeding machine rotating speeds.Extrudate is made polypropylene resin composite through the dicing machine pelletizing.The composition and the performance of the polypropylene resin composite that makes see Table 1.
Example 2
Method by example 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 3162 grams, hydrogenated petroleum resin are 800 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Example 3
Method by example 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2962 grams, hydrogenated petroleum resin are 1000 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Example 4
Method by example 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2512 grams, hydrogenated petroleum resin are 1450 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Example 5
Method by example 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2158 grams, hydrogenated petroleum resin are that 1800 grams, silicon-dioxide are 8 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Comparative Examples 1
Get example 1 described polypropylene 3566 grams, hydrogenated petroleum resin 400 grams, two (3,4-dimethyl-diphenylmethylene) sorbyl alcohol 10 grams of transparent agent, the primary antioxidant Irganox1010 of 8 grams, the aid anti-oxidants Irgafos168 of 16 grams.It is in 250 rev/mins the high-speed mixer that described material is added rotating speed successively, mixes 5 minutes, forms uniform mixture.With mixture add mixing in the parallel parallel dual-screw extruding machine, extrude slivering, 105 ℃ of control twin screw extruder one district's temperature, 145 ℃ of two district's temperature, 179 ℃ of three district's temperature, 189 ℃ of four district's temperature, 195 ℃ of five district's temperature, 200 ℃ of six district's temperature, 197 ℃ of seven district's temperature, 196 ℃ of eight district's temperature, 200 rev/mins of screw speeds, 50 rev/mins of feeding machine rotating speeds.Extrudate makes polypropylene resin composite through the dicing machine pelletizing, and its composition and performance see Table 1.
Comparative Examples 2
Method by Comparative Examples 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 3166 grams, hydrogenated petroleum resin are 800 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Comparative Examples 3
Method by Comparative Examples 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2966 grams, hydrogenated petroleum resin are 1000 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Comparative Examples 4
Method by Comparative Examples 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2516 grams, hydrogenated petroleum resin are 1450 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
Comparative Examples 5
Method by Comparative Examples 1 prepares polypropylene resin composite, and different is that the polypropylene that adds is that 2166 grams, hydrogenated petroleum resin are 1800 grams, and the composition and the performance of the polypropylene resin composite that makes see Table 1.
By table 1 data as can be known, the resin combination of the present invention that adds silicon-dioxide in the preparation is than the comparative resin composition that does not add silicon-dioxide, when component concentration was basic identical, melting index and transmittance were suitable, illustrated that resin combination rheological of the present invention and light transmission are good.In addition, resin combination of the present invention has higher intensity and rigidity, and especially the modulus in flexure increment is bigger, and the surface smoothness of resin combination of the present invention also increases simultaneously, and mist degree is relatively low, and the transparent good of resin is described.
Claims (8)
1, a kind of polypropylene resin composite, comprise the polypropylene of 50.5～91.0 quality %, the petroleum resin of 8.0～49.0 quality %, the transparent agent of 0.1～0.3 quality % and the silicon-dioxide of 0.05～0.4 quality %, described silica granules diameter is 1～5 micron, described each component concentration sum is 100%, and described transparent agent is the glucitols compound.
2, according to the described composition of claim 1, it is characterized in that polyacrylic content is 52.0～76.3 quality % in the described resin combination, the content of petroleum resin is 23.0～47.5 quality %.
3,, it is characterized in that described polyacrylic degree of isotacticity is 95～98% according to claim 1 or 2 described compositions.
4,, it is characterized in that described polyacrylic melting index is 0.2～3.0 gram/10 minutes, 230 ℃ of probe temperatures, 2.16 kilograms of weighing loads according to the described composition of claim 3.
5, according to claim 1 or 2 described compositions, it is characterized in that described petroleum resin are hydrogenated petroleum resin, its hydrogenation ratio is greater than 80%.
6,, it is characterized in that described silica granules diameter is 1～3 micron according to the described composition of claim 1.
7, the preparation method of the described polypropylene resin composite of a kind of claim 1 comprises polypropylene, petroleum resin, transparent agent and silicon-dioxide are mixed, and adds in the high-speed mixer to mix, and adds mixing granulator in the parallel parallel dual-screw extruding machine again.
8, in accordance with the method for claim 7, it is characterized in that controlling parallel each section of parallel dual-screw extruding machine temperature is 100～200 ℃, and screw speed is 200～250 rev/mins, and the feeding machine rotating speed is 30～80 rev/mins.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016154768A1 (en) * | 2015-03-27 | 2016-10-06 | Exxonmobil Chemical Patents Inc | Multi-layer laminated structures and preparation method thereof |
| US10876063B2 (en) | 2014-07-31 | 2020-12-29 | Exxonmobil Chemical Patents Inc. | Syndiotactic propylene polymers and lubricating oils comprising the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481393B (en) * | 2013-09-06 | 2017-01-04 | 四川大学 | There is polymeric material of continuous alternating laminated structure and preparation method thereof |
| CN107973974B (en) * | 2016-10-21 | 2020-09-15 | 中国石油化工股份有限公司 | Thermoplastic elastomer composition, preparation method thereof and sealing gasket |
| JP7431221B2 (en) * | 2019-04-10 | 2024-02-14 | Ｅｎｅｏｓ株式会社 | Flame-retardant resin composition, method for producing the same, and hydrogenated petroleum resin |
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- 2006-05-31 CN CNB2006100834333A patent/CN100569842C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10876063B2 (en) | 2014-07-31 | 2020-12-29 | Exxonmobil Chemical Patents Inc. | Syndiotactic propylene polymers and lubricating oils comprising the same |
| WO2016154768A1 (en) * | 2015-03-27 | 2016-10-06 | Exxonmobil Chemical Patents Inc | Multi-layer laminated structures and preparation method thereof |
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