CN1363627A - Powder for forming enamelled plastics and its preparing process - Google Patents
Powder for forming enamelled plastics and its preparing process Download PDFInfo
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- CN1363627A CN1363627A CN 02110787 CN02110787A CN1363627A CN 1363627 A CN1363627 A CN 1363627A CN 02110787 CN02110787 CN 02110787 CN 02110787 A CN02110787 A CN 02110787A CN 1363627 A CN1363627 A CN 1363627A
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- polyvinyl chloride
- slush moulding
- moulding powder
- resin
- photostabilizer
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Abstract
An enamel-plastics powder for the meter panel of car is prepared from polyvinyl chloride resin, non-toxic stabilizer, high-molecular plasticizer and superfine polyvinyl chloride resin through proportional mixing. Its advantages include high flowability, excellent melting performance and good mechanical performance.
Description
Technical field
The present invention relates to a kind of slush moulding powder that is used for slush molding technology and preparation method thereof.
Background technology
The powder slush moulding is a state-of-the-art technology in the powder molding technology, and its technical process is roughly as follows: at first mold heated is arrived certain temperature, utilize the unrestricted flow of slush moulding powder, carry out slush molding, by rotation, make the slush moulding powder adhere to the internal surface of the mould of heat; The mould that will be stained with the slush moulding powder further heats again, makes the fusion of slush moulding powder closely knit; Then mould is cooled off and make the goods typing, in the end goods are taken out from mould, finish a slush moulding circulation.From the process of slush molding, can see that the slush moulding powder must have good mobility and melting characteristic, especially the melting characteristic of slush moulding powder is extremely important, and it has decisive influence to the quality and the performance of the finished product.
The disclosed relevant patent documentation about slush moulding powder in the slush molding technology has CN1012682B at present, EP934983, EP544411, JP07179702 and JP07149983, a kind of polychloroethylene composition that is suitable for slush molding of patent documentation CN1012682B report has wherein used the barium salt that has been limited the harmful to human that uses at present as thermo-stabilizer in the said composition.And EP934983, EP544411, JP07179702 and JP07149983 report that all with a kind of composition that contains the polyvinyl chloride (PVC) RESINS (SPVC) of suspension polymerization be the slush moulding powder.The inventor finds after deliberation, uses polyvinyl chloride (PVC) RESINS (SPVC) the preparation slush moulding powder of suspension polymerization that following 2 deficiencies are arranged:
(1) the slush moulding powder generally is used for the goods of production semi-rigid more, as fascia epidermis etc., in prescription, need to use a large amount of softening agent, consider the characteristics of roto casting, the slush moulding powder also is necessary for free flowable powder, so the absorptive character particularly important of the softening agent of resin, this is because the speed of plasticizer absorption speed, determined the production efficiency of slush moulding powder, and to the properties of powder of gained slush moulding powder, can produce certain influence as flowability etc.Experimental studies have found that under same condition, the speed of the polyvinyl chloride (PVC) RESINS of suspension polymerization absorption softening agent is slow, and after absorbing, the sieving rate of powder neither be very desirable.
(2) in the slush moulding process, the heat that mould held is with absorption of slush moulding powder and fusion.Consider that polyvinyl chloride (PVC) RESINS at high temperature can decompose, therefore wish the slush moulding powder can be under lower temperature fusion or fused speed very fast.Adopt suspension polymerization resins slush moulding powder, its melting behaviour is relatively poor.
Summary of the invention
The present invention selects the polyvinyl chloride (PVC) RESINS of mass polymerization for use, cooperates with non-toxic stabilizer simultaneously, and the higher relatively softening agent of molecular weight, and added the superfine polyvinyl chloride (PVC) paste resin of particle diameter, prepare the slush moulding powder by dried mixing method.The flowing property of gained slush moulding powder is better, and melting behaviour is excellent especially, and mechanical property satisfies service requirements, thereby has improved the deficiency of existing slush moulding powder.Slush moulding powder of the present invention is specially adapted to the manufacturing of fascia.
Technical scheme of the present invention:
The component and the parts by weight thereof of slush moulding powder of the present invention are as follows:
The composition weight umber
Polyvinyl chloride mass polymerization resin (MPVC) 100
Softening agent 40-80
Thermo-stabilizer 4-8
Epoxy ester series compound 2-10
Antioxidant 1 0.1-0.6
Antioxidant 2 0.05-1.0
Photostabilizer 1 0.01-0.3
Photostabilizer 2 0.01-0.3
Polyvinyl chloride (PVC) paste resin (PPVC) 5-25
Wherein:
The polymerization degree of the poly-resin (MPVC) of described polyvinyl chloride body is 700-1800 (JISK6721), and preferred degree of polymerization is 800-1300;
Described softening agent is C
9-C
13Phthalate compound or trimellitic acid ester compound;
Described thermo-stabilizer is the calcium and/or the zinc salt of organic carboxyl acid, and as calcium stearate and/or Zinc dibenzoate etc., wherein calcium salt and the composite use of zinc salt with organic carboxyl acid is excellent.Thermal stability for further raising system can add epoxy ester series compound (as epoxy soybean oil or epoxy Viscotrol C) and be used in above-mentioned composition;
The polymerization degree of described polyvinyl chloride (PVC) paste resin (PPVC) is 1000-2000 (JISK6721), wherein is again that 1300-1800 is the most suitable with the polymerization degree;
Described antioxidant 1 is single phenol, bis-phenol or polyphenolic substance;
Described antioxidant 2 is a thio-ether type compounds, as DLTP, DSTP, DMTP and/or TPD2000;
Described photostabilizer 1 is a hindered amine light stabilizer, as photostabilizer 144 and/or UV-3034;
Described photostabilizer 2 is a benzotriazole compound, as UV-326 and/or UV-P;
Can in above-mentioned composition, add pigment as required, as carbon black and/or titanium dioxide.
Above-mentioned all compounds are the commercial goods.
The preparation method of slush moulding powder of the present invention comprises the steps:
(1) MPVC resin, oxidation inhibitor, thermo-stabilizer and photostabilizer are added according to the above ratio in band stirring and the heating unit reactor, disposable adding softening agent and epoxy ester after stirring is warming up to 85-95 ℃, continue to stir and heat up, when temperature rises to 100-110 ℃, stop heating and stirring.Continue after 5-15 minute to stir to be warming up to 115-125 ℃, stir discharging after 2-5 minute.
(2) reactant with step (1) gained places the reactor of another band whipping appts to add polyvinyl chloride (PVC) paste resin under 40-70 ℃ of condition, stirs discharging after 10-20 minute.Reaction product through sieving in (20-100 order) but after can obtain the excellent especially slush molding slush moulding powder of unrestricted flow of the present invention and melting properties.
Specific implementation method
The present invention is further illustrated below by embodiment and Comparative Examples, but it does not limit protection scope of the present invention:
Embodiment
MPVC (polymerization degree is 1000) with 40Kg, 1.2Kg calcium stearate, 0.8Kg Zinic stearas, the 120g dihydroxyphenyl propane, 200gDSTP, 20g photostabilizer 144,20g UV-326 joins in the high-speed mixer, stirring is warming up to 95 ℃, add 25KgDINP, the epoxy soybean oil of 2.7Kg continues to stir and heats up, when temperature rises to 105 ℃, stop heating, stop to stir, make polyvinyl chloride (PVC) RESINS absorb softening agent, after 10 minutes (t1), softening agent is absorbed fully, and this moment, restir was warming up to 120 ℃, added the 800g carbon black, stir discharging after 2-5 minute, can obtain the puffy powder.When the powder temperature of this puffy is reduced to 65 ℃, it is added in another high-speed mixer, add 6KgPPVC resin (polymerization degree is 1500), stir discharging after 10 minutes.Sieve with 40 purpose sub-sieves, just can obtain topic and state mixture.
Comparative Examples
In order better to embody the characteristics of said mixture, used Comparative Examples at this.In Comparative Examples, only the mass polymerization polyvinyl chloride (PVC) RESINS is changed into the polyvinyl chloride (PVC) RESINS of suspension polymerization, other components are constant, and the consumption of each component is constant.In mixing process, because the speed of resin absorption softening agent is slower, therefore the soak time (being the t1 in the above-mentioned hybrid technique) that must prolong softening agent was by 30 minutes, and this moment, plasticizer absorption was complete, and other processing condition are constant.
The performance comparison of embodiment and Comparative Examples is as follows:
(1) as can be seen, MPVC compares with SPVC, and the absorption rate of its softening agent is faster, therefore selects MPVC for use, can enhance productivity from mixing process.
(2) mechanical property and properties of powder contrast
The mechanical property of embodiment and Comparative Examples and the contrast of properties of powder see Table 1
The mechanical property of table 1 embodiment and Comparative Examples and properties of powder performance and testing standard embodiment Comparative Examples powder flow velocity (ml/s) ASTMD1895 15.74 14.75 mobile angle of reposes (°) GB11986 27.71 27.72 hot strength (MPa) GB1040 14.72 14.81 hardness (Shore A) DIN53505 74.50 74.70 elongation at break (%) GB1040 374.60 359.50
From table 1, can see that by suitable dry mixing process, the embodiment for preparing and the mechanical property of Comparative Examples and properties of powder are approaching substantially, and be at aspects such as tensile strength and powder flow velocitys, better with embodiment.
(3) melting behaviour contrast
With above-mentioned two kinds of slush moulding powder, be poured on the hot platform that is heated to 230 ℃, after the certain hour, hot platform is cooled off rapidly, at the microscopically of band scale, measure fusion thickness.Set different time, can obtain a series of data, list in the table 2.
The melting behaviour contrast of table 2 embodiment and Comparative Examples
From table 2, can see under the identical time, embodiment fused thickness is thicker than Comparative Examples, this can guarantee the thickness in the slush moulding process on the one hand, thereby the mechanical property of goods is protected, it can shorten the slush moulding time on the other hand, reduces the possibility of polyvinyl chloride (PVC) RESINS degraded.
Claims (4)
1, a kind of slush moulding powder that is used for slush molding is characterized by described slush moulding powder and comprises following component and parts by weight thereof:
Polyvinyl chloride mass polymerization resin 100
Softening agent 40-80
Thermo-stabilizer 4-8
Epoxy ester series compound 2-10
Antioxidant 1 0.1-0.6
Antioxidant 2 0.05-1.0
Photostabilizer 1 0.01-0.3
Photostabilizer 2 0.01-0.3
Polyvinyl chloride (PVC) paste resin 5-25
Wherein said:
The polymerization degree of polyvinyl chloride mass polymerization resin is 700-1800;
Softening agent is C
9-C
13Phthalate compound or trimellitic acid ester compound; Thermo-stabilizer is the calcium and/or the zinc salt of organic carboxyl acid; The polymerization degree of polyvinyl chloride (PVC) paste resin is 1000-2000; Antioxidant 1 is single phenol, bis-phenol or polyphenolic substance; Antioxidant 2 is a thio-ether type compounds; Photostabilizer 1 is a hindered amine light stabilizer; Photostabilizer 2 is a benzotriazole compound.
2, slush moulding powder according to claim 1, it is characterized by the poly-resin polymerization degree of wherein said polyvinyl chloride body is 800-1300, the described polyvinyl chloride (PVC) paste resin polymerization degree is 1300-1800.
3, slush moulding powder according to claim 1, it is characterized by wherein said epoxy ester series compound is epoxy soybean oil or epoxy Viscotrol C.
4, as the preparation method of any one slush moulding powder as described in the claim 1-3, it is characterized by described method and comprise the steps:
(1) the poly-resin of polyvinyl chloride body, oxidation inhibitor, thermo-stabilizer and photostabilizer are added in band stirring and the heating unit reactor, after stirring is warming up to 85-95 ℃, add softening agent and epoxy ester series compound, continue to stir and heat up, when temperature rises to 100-110 ℃, stop heating and stirring, continue stirring after 5-15 minute and be warming up to 115-125 ℃, stir discharging after 2-5 minute;
(2) reactant with step (1) gained places the reactor of another band whipping appts to add polyvinyl chloride (PVC) paste resin under 40-70 ℃ of condition, stirs and promptly obtains slush moulding powder of the present invention after 10-20 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021107874A CN1152918C (en) | 2002-02-06 | 2002-02-06 | Powder for forming enamelled plastics and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021107874A CN1152918C (en) | 2002-02-06 | 2002-02-06 | Powder for forming enamelled plastics and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363627A true CN1363627A (en) | 2002-08-14 |
| CN1152918C CN1152918C (en) | 2004-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021107874A Expired - Fee Related CN1152918C (en) | 2002-02-06 | 2002-02-06 | Powder for forming enamelled plastics and its preparing process |
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| CN (1) | CN1152918C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318200C (en) * | 2002-12-26 | 2007-05-30 | 仲田涂覆株式会社 | Powder thread rolling shaper and forming method |
| CN100366670C (en) * | 2003-09-30 | 2008-02-06 | 株式会社艾迪科 | Vinyl chloride resin composition for vehicle |
| WO2011066734A1 (en) * | 2009-12-01 | 2011-06-09 | Wu Yue | Method for preparing fragrant artificial fruit and fragrant artificial fruit prepared thereof |
| CN102977510A (en) * | 2012-12-11 | 2013-03-20 | 苏州工业园区润佳工程塑料有限公司 | Slush molding PVC (Poly Vinyl Chloride) material for instrument panel covering and preparation method of slush molding PVC material |
| CN103497448A (en) * | 2013-09-30 | 2014-01-08 | 中国科学院长春应用化学研究所 | Polyvinyl chloride slush moulding powder material and preparation method and application thereof |
| CN104788720A (en) * | 2015-04-22 | 2015-07-22 | 山东大学 | Environment-friendly efficient liquid composite thermal stabilizing agent for PVC slush molding process and preparation method of environment-friendly efficient liquid composite thermal stabilizing agent |
| CN105085941A (en) * | 2015-08-17 | 2015-11-25 | 山东大学 | Technique for uniformly dispersing inorganic particles in special material for PVC (polyvinyl chloride) slush molding and product thereof |
| CN105992799A (en) * | 2013-12-10 | 2016-10-05 | 日本瑞翁株式会社 | Vinyl chloride resin composition, vinyl chloride resin molded article, and laminate |
| CN109454790A (en) * | 2018-11-07 | 2019-03-12 | 浙江利民实业集团有限公司 | A kind of instrument panel surfaces slush molding technique |
| CN110746717A (en) * | 2019-10-24 | 2020-02-04 | 青华科教仪器有限公司 | Slush molding PVC material and preparation method thereof |
| CN111499992A (en) * | 2020-05-27 | 2020-08-07 | 华美工程塑料(常熟)有限公司 | Antibacterial polyvinyl chloride slush molding powder composition and preparation method and application thereof |
-
2002
- 2002-02-06 CN CNB021107874A patent/CN1152918C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318200C (en) * | 2002-12-26 | 2007-05-30 | 仲田涂覆株式会社 | Powder thread rolling shaper and forming method |
| CN100366670C (en) * | 2003-09-30 | 2008-02-06 | 株式会社艾迪科 | Vinyl chloride resin composition for vehicle |
| WO2011066734A1 (en) * | 2009-12-01 | 2011-06-09 | Wu Yue | Method for preparing fragrant artificial fruit and fragrant artificial fruit prepared thereof |
| CN102977510B (en) * | 2012-12-11 | 2014-11-12 | 苏州润佳工程塑料股份有限公司 | Slush molding PVC (Poly Vinyl Chloride) material for instrument panel covering and preparation method of slush molding PVC material |
| CN102977510A (en) * | 2012-12-11 | 2013-03-20 | 苏州工业园区润佳工程塑料有限公司 | Slush molding PVC (Poly Vinyl Chloride) material for instrument panel covering and preparation method of slush molding PVC material |
| CN103497448B (en) * | 2013-09-30 | 2016-10-12 | 中国科学院长春应用化学研究所 | A kind of polrvinyl chloride slush moulding powder material and preparation method thereof and application thereof |
| CN103497448A (en) * | 2013-09-30 | 2014-01-08 | 中国科学院长春应用化学研究所 | Polyvinyl chloride slush moulding powder material and preparation method and application thereof |
| CN105992799A (en) * | 2013-12-10 | 2016-10-05 | 日本瑞翁株式会社 | Vinyl chloride resin composition, vinyl chloride resin molded article, and laminate |
| CN104788720A (en) * | 2015-04-22 | 2015-07-22 | 山东大学 | Environment-friendly efficient liquid composite thermal stabilizing agent for PVC slush molding process and preparation method of environment-friendly efficient liquid composite thermal stabilizing agent |
| CN104788720B (en) * | 2015-04-22 | 2017-09-01 | 山东大学 | A kind of PVC roto castings environment-friendly high-efficiency liquid composite thermal stabilizer and preparation method |
| CN105085941A (en) * | 2015-08-17 | 2015-11-25 | 山东大学 | Technique for uniformly dispersing inorganic particles in special material for PVC (polyvinyl chloride) slush molding and product thereof |
| CN105085941B (en) * | 2015-08-17 | 2017-10-27 | 山东大学 | The dispersed process of inorganic particulate in PVC slush mouldings PP Pipe Compound and product |
| CN109454790A (en) * | 2018-11-07 | 2019-03-12 | 浙江利民实业集团有限公司 | A kind of instrument panel surfaces slush molding technique |
| CN110746717A (en) * | 2019-10-24 | 2020-02-04 | 青华科教仪器有限公司 | Slush molding PVC material and preparation method thereof |
| CN111499992A (en) * | 2020-05-27 | 2020-08-07 | 华美工程塑料(常熟)有限公司 | Antibacterial polyvinyl chloride slush molding powder composition and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1152918C (en) | 2004-06-09 |
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Granted publication date: 20040609 Termination date: 20100206 |