CN103030880B - Coupling agent modified calcium carbonate filled polypropylene plastic and preparation method thereof - Google Patents
Coupling agent modified calcium carbonate filled polypropylene plastic and preparation method thereof Download PDFInfo
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- CN103030880B CN103030880B CN201210111273.4A CN201210111273A CN103030880B CN 103030880 B CN103030880 B CN 103030880B CN 201210111273 A CN201210111273 A CN 201210111273A CN 103030880 B CN103030880 B CN 103030880B
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Abstract
The invention discloses a coupling agent modified calcium carbonate filled polypropylene plastic and a preparation method thereof. The coupling agent modified calcium carbonate filled polypropylene plastic comprises the following components in parts by weight: 100 parts of polypropylene, 10-20 parts of calcium carbonate, and 0.1-0.3 part of coupling agent, wherein the coupling agent preferably consists of 10-30 parts of gamma-chloropropyltriethoxysilane, 50-70 parts of isopropyl tri(dioctylphosphate)titanate and 10-30 parts of Polyethyleneglycol trimethoxysilylpropyl ether. According to the invention, calcium carbonate is modified by adding the coupling agent so that the surface of calcium carbonate changes from hydrophilicity into lipophilicity and then can be tightly combined with polypropylene, and the performances of a plastic material are improved; furthermore, the coupling agent is preferable so that the viscosity is reduced, and each mechanical property is better; and the coupling agent modified calcium carbonate filled polypropylene plastic has the advantages of good tensile strength, elongation at break, notch impact strength, thermal deformation temperature and Rockwell hardness.
Description
Technical field
The present invention relates to a kind of plastic material and preparation method thereof, particularly relate to a kind of coupling agent modified calcium carbonate-filled acrylic plastering and preparation method thereof.
Background technology
Polypropylene, english abbreviation is PP, No. CAS: 9003-07-0.A kind of a kind of thermoplastic resin obtained by propylene polymerization.Being nineteen fifty-seven first drop into industrial production in Italy, is another the important plastics variety after polyethylene (PE).It has good thermotolerance, also can not be destroyed at 135 DEG C of boiling 1000h, and specific heat capacity, the thermal conductivity of PP are all less than PE, but heat insulating ability is better than PE.PP belongs to non-polar polymer, has excellent dielectricity and electrical insulating property, and electrical property is not subject to the impact of ambient moisture and electric field frequency substantially, and in the working range allowed, temperature rising can make electrical property reduce, and its arc resistance is higher.The chemical resistant properties of PP is good, except strong oxidizer has erosion action to it, other reagent to it all without acting on.
In acrylic plastering, usually fill inorganic powder, meeting the prerequisite decline lower production cost of service requirements or making the obtained raising of some performance of material, what current usage quantity was maximum is talcum powder and calcium carbonate.Adopt and inorganic powder filledly greatly can reduce production cost, calcium carbonate is widely used mineral filler in polymer composite.Add the mineral fillers such as calcium carbonate in the plastic, the thermotolerance of goods, wear resistance, dimensional stability and rigidity etc. can be improved, and reduce goods cost, but powder does not add process and joins in macromolecular material and go, obvious interface is there is between filler and polymkeric substance, as there is many cavities in matrix resin, the net sectional area that can bear external force under external force reduces, and the mechanical property of packing material is deteriorated.
In addition, what adopt in usual production process is polymer particle, with inorganic powder mixing aftershaping, is easy to like this cause the uneven of mixing of materials, affects the performance of goods.
Summary of the invention
For above shortcomings in prior art, one of technical problem to be solved by this invention provides a kind of coupling agent modified calcium carbonate-filled acrylic plastering.
Two of technical problem to be solved by this invention provides the preparation method of above-mentioned coupling agent modified calcium carbonate-filled acrylic plastering.
The present invention seeks to be achieved through the following technical solutions:
A kind of coupling agent modified calcium carbonate-filled acrylic plastering, comprises the component of following weight parts: polypropylene 100 parts, calcium carbonate 10-20 part, coupling agent 0.1-0.3 part.
Further,
Described coupling agent is one in γ-chloropropyl triethoxysilane, sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester and polyoxyethylene glycol trimethoxy silicon propyl ether or its mixture.
Preferably, described coupling agent is made up of by weight following component: γ-chloropropyl triethoxysilane 10-30 part, sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester 50-70 part and polyoxyethylene glycol trimethoxy silicon propyl ether 10-30 part.
Present invention also offers the preparation method of above-mentioned coupling agent modified calcium carbonate-filled acrylic plastering:
(1) with coupling agent, surface modification treatment is carried out to calcium carbonate, obtained modified calcium carbonate;
(2) polypropylene and modified calcium carbonate are added in mixing tank stir, through forcing machine extruding pelletization.
Further,
Described surface modification treatment is: by coupling agent solvent cut, then evenly spreads in calcium carbonate, by baking oven, solvent is volatilized completely, then the calcium carbonate pulverizer after drying is ground into fine powder.
Described solvent can be ethanol, No. 120 solvent oils, Virahol, white oil or dimethylbenzene.
In described step (2), in mixing tank, rotating speed at 300-400r/min, whipping temp 70-80 DEG C, churning time 2-4 minute, the extrusion temperature 180-200 DEG C in forcing machine.
Obviously, in the present invention for improving other performances of product, other auxiliary agents can also be added adaptively, as oxidation inhibitor, fire retardant, tinting material and static inhibitor etc.
Concrete, in the present invention:
γ-chloropropyl triethoxysilane, English name: γ-chloropropyltriethoxysilane, CAS number: 5089-70-3, molecular formula: C
9h
21clO
3si.
Sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester, CAS:65345-34-8, English name: Isopropyl tri (dioctylphosphate) titanate.
Polyoxyethylene glycol trimethoxy silicon propyl ether, ripe title silane coupling agent 4140, it is English by name: Polyethylene glycol trimethoxysilylpropyl ether, CAS:98358-37-3.
In plastics research and production process, usually use toughener as calcium carbonate.This can not only increase the quality of plastics, reduces the cost of product, and can also improve some performance of plastics.But because mineral filler and organic polymer also exist significant difference in chemical structure and physical aspect, both lack affinity, often make the mechanical property of plastics and moulding processability be affected.The present invention carries out modification by adding coupling agent to calcium carbonate, makes calcium carbonate surface become lipophilicity by wetting ability, thus can be formed with polypropylene and combine closely, and plastic material performance is improved.Carry out preferably, producing synergistic function, viscosity is reduced between three kinds of coupling agents to coupling agent, every mechanical property is better, has and draws high intensity, elongation at break, notched Izod impact strength, heat-drawn wire and Rockwell hardness preferably.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Each raw material is taken according to embodiment 1 data corresponding in table 1.
(1) solvent xylene of coupling agent by coupling agent 5 times of weight is diluted, then evenly spread in calcium carbonate, by baking oven, dimethylbenzene is volatilized completely, then the calcium carbonate pulverizer after drying is ground into fine powder, obtained modified calcium carbonate.
(2) polypropylene and modified calcium carbonate are added in mixing tank stir, control rotating speed at 300-400r/min, whipping temp 70-80 DEG C, churning time 2-4 minute, again through screw extrusion press extruding pelletization, extrusion temperature 180-200 DEG C, cooling forming in the cold water of 10-40 DEG C, namely obtains described coupling agent modified calcium carbonate-filled acrylic plastering.
Obviously, modified calcium carbonate be prepared as industry universal method, adopt other modes to carry out modification and also can reach close effect, special feature is the optimized choice of coupling agent.
Table 1: coupling agent modified calcium carbonate-filled acrylic plastering formula table unit: kilogram
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Blank example | |
| Polypropylene PP | 100 | 100 | 100 | 100 | 100 | 100 |
| Calcium carbonate | 15 | 15 | 15 | 15 | 15 | / |
| γ-chloropropyl triethoxysilane | 0.04 | 0.2 | / | / | / | / |
| Sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester | 0.12 | / | 0.2 | / | / | / |
| Polyoxyethylene glycol trimethoxy silicon propyl ether | 0.04 | / | / | 0.2 | / | / |
Embodiment 2
Each raw material is taken according to embodiment 2 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described coupling agent modified calcium carbonate-filled acrylic plastering.
Embodiment 3
Each raw material is taken according to embodiment 3 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described coupling agent modified calcium carbonate-filled acrylic plastering.
Embodiment 4
Each raw material is taken according to embodiment 4 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described coupling agent modified calcium carbonate-filled acrylic plastering.
Comparative example 1
Each raw material is taken according to comparative example 1 data corresponding in table 1.
Polypropylene and calcium carbonate are added in mixing tank and stirs, control rotating speed at 300-400r/min, whipping temp 70-80 DEG C, churning time 2-4 minute, then through screw extrusion press extruding pelletization, extrusion temperature 180-200 DEG C, cooling forming in the cold water of 10-40 DEG C.
Blank example
Virgin pp is added in mixing tank and stirs, control rotating speed at 300-400r/min, whipping temp 70-80 DEG C, churning time 2-4 minute, then through screw extrusion press extruding pelletization, extrusion temperature 180-200 DEG C, cooling forming in the cold water of 10-40 DEG C.
Test case 1
Table 2: coupling agent modified calcium carbonate-filled acrylic plastering performance test table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Blank example | |
| Draw high intensity, Mpa | 22.7 | 20.4 | 20.6 | 20.9 | 18.5 | 22.9 |
| Elongation at break, % | 65.2 | 59.4 | 58.7 | 58.1 | 36.5 | 65.6 |
| Notched Izod impact strength, J/m | 556 | 412 | 436 | 424 | 328 | 78 |
| Heat-drawn wire, DEG C | 130 | 129 | 131 | 127 | 122 | 105 |
| Rockwell hardness, R | 105 | 96 | 92 | 94 | 91 | 89 |
The present invention carries out modification by adding coupling agent to calcium carbonate, makes calcium carbonate surface become lipophilicity by wetting ability, thus can be formed with polypropylene and combine closely, and plastic material performance is improved.Carry out preferably, producing synergistic function, viscosity is reduced between three kinds of coupling agents to coupling agent, every mechanical property is better, has and draws high intensity, elongation at break, notched Izod impact strength, heat-drawn wire and Rockwell hardness preferably.
Claims (1)
1. a coupling agent modified calcium carbonate-filled acrylic plastering, it is characterized in that, comprise the component of following weight parts: polypropylene 100 parts, calcium carbonate 10-20 part, coupling agent 0.1-0.3 part, described coupling agent is made up of by weight following component: γ-chloropropyl triethoxysilane 10-30 part, sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester 50-70 part and polyoxyethylene glycol trimethoxy silicon propyl ether 10-30 part.
2
.a preparation method for coupling agent modified calcium carbonate-filled acrylic plastering as claimed in claim 1, is characterized in that, comprise the steps:
(1) with coupling agent, surface modification treatment is carried out to calcium carbonate, obtained modified calcium carbonate;
(2) polypropylene and modified calcium carbonate are added in mixing tank stir, through forcing machine extruding pelletization.
3
.the preparation method of coupling agent modified calcium carbonate-filled acrylic plastering as claimed in claim 2, it is characterized in that, described in step (1), surface modification treatment is: by coupling agent solvent cut, then evenly spread in calcium carbonate, by baking oven, solvent is volatilized completely, then the calcium carbonate pulverizer after drying is ground into fine powder.
4
.the preparation method of coupling agent modified calcium carbonate-filled acrylic plastering as claimed in claim 3, is characterized in that: described solvent is ethanol, No. 120 solvent oils, Virahol, white oil or dimethylbenzene.
5
.the preparation method of coupling agent modified calcium carbonate-filled acrylic plastering as claimed in claim 2, it is characterized in that: in described step (2), in mixing tank, rotating speed is at 300-400r/min, whipping temp 70-80 DEG C, churning time 2-4 minute, the extrusion temperature 180-200 DEG C in forcing machine.
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| CN201210111273.4A CN103030880B (en) | 2012-04-16 | 2012-04-16 | Coupling agent modified calcium carbonate filled polypropylene plastic and preparation method thereof |
| CN201410809266.0A CN104479226B (en) | 2012-04-16 | 2012-04-16 | Coupling agent modified calcium carbonate-filled polypropylene plastics |
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| CN201410809266.0A Division CN104479226B (en) | 2012-04-16 | 2012-04-16 | Coupling agent modified calcium carbonate-filled polypropylene plastics |
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| CN103694590A (en) * | 2013-12-02 | 2014-04-02 | 南通瑞普埃尔生物工程有限公司 | High temperature resistant PVC/PBT (Poly Vinyl Chloride/Poly Butylene Terephthalate) composite material and preparation method thereof |
| CN104788808A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | Polypropylene packaging bag and preparation method thereof |
| CN106431043B (en) * | 2016-09-13 | 2018-11-02 | 广西大学 | Strengthen the method using dual-functional group modifier modification lime stone under a kind of microwave field |
| CN107417968B (en) * | 2017-04-12 | 2019-12-20 | 南京航空航天大学 | Surface modification method of heavy calcium carbonate and method for preparing high polymer composite material by adopting method |
| CN110229417B (en) * | 2019-07-03 | 2022-02-18 | 海南蓝岛环保产业股份有限公司 | Plastic product based on artificial marble waste residue filler and preparation method thereof |
| CN115742489B (en) * | 2022-12-15 | 2023-10-03 | 江西省盛纬材料有限公司 | Thermal aluminum-plastic composite film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1308099A (en) * | 2001-02-28 | 2001-08-15 | 中国石化集团扬子石油化工有限责任公司 | Nanometer calcium carbonate-polypropylene composite material and its preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1308099A (en) * | 2001-02-28 | 2001-08-15 | 中国石化集团扬子石油化工有限责任公司 | Nanometer calcium carbonate-polypropylene composite material and its preparation |
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Denomination of invention: Coupling agent modified calcium carbonate filled polypropylene plastic and preparation method thereof Effective date of registration: 20160628 Granted publication date: 20150311 Pledgee: Jingxing Hebei rural commercial bank Limited by Share Ltd Pledgor: Hebei Lixin Chemical Co., Ltd. Registration number: 2016130000008 |
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