CN104592663A - High-toughness and high-elasticity expandable polystyrene and preparation method thereof - Google Patents
High-toughness and high-elasticity expandable polystyrene and preparation method thereof Download PDFInfo
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Abstract
The invention discloses high-toughness and high-elasticity expandable polystyrene which comprises the following raw materials in parts by weight: 100 parts of styrene, 20-30 parts of an ethylene-vinyl acetate copolymer, 10-15 parts of high-density polyethylene, 150-170 parts of water, 0.2-0.5 parts of dibenzoyl peroxide, 0.05-0.1 parts of tert-butyl peroxybenzoate, 0.05-0.15 parts of activated calcium phosphate, 0.2-0.5 parts of modified titanium dioxide, 0.1-0.2 parts of hydroxyethyl cellulose, 2-8 parts of nekal, 0.05-0.15 parts of a defoamer and 7-12 parts of a foamer. The invention further discloses a preparation method for the high-toughness and high-elasticity expandable polystyrene. The high-toughness and high-elasticity expandable polystyrene is high in toughness, high in resilience, excellent in heat-retaining property, corrosion resistance, hardness, tensile strength and creep property, and good in water resistance, wear resistance and cold resistance.
Description
Technical field
The present invention relates to expanded plastic technical field, particularly relate to a kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) and preparation method thereof.
Background technology
Within 1949, Expandable Polystyrene (EPS) EPS has invented in BASF AG, because it has excellent performance such as heat insulation, insulation, light weight and protection against the tide etc., is widely used in building trade, packaging field etc., is particularly useful for the thermofin on body of wall and roof.Along with green building in recent years, the greatly developing of environmental protection and energy saving, building trade to the demand of EPS linearly formula increase.Expandable polystyrene particle often toughness and ageing-resistant performance is difficult to practical requirement.
CN101092462 discloses a kind of expandable polystyrene particle and preparation method thereof, this patent specifically discloses the preparation method producing and have the flame retardant type EPS of environmental-protecting performance, wherein de-salted water consumption is 100-130 part, vinylbenzene consumption is 90-110 part, the de-salted water adopted needs through special processing treatment, add production cost undoubtedly, and this production method is only for the production of flame retardant type EPS, production method has certain limitation.
Therefore, needs are a kind of now has high tenacity, ageing-resistant expandable polystyrene particle.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) and preparation method thereof, there is high tenacity, high resilience energy, and insulation, corrosion-resistant, hardness, tensile strength and creep properties are excellent, water-fast, wear-resisting, winter hardiness is good.
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 20-30 part, high density polyethylene(HDPE) 10-15 part, water 150-170 part, dibenzoyl peroxide 0.2-0.5 part, peroxidized t-butyl perbenzoate 0.05-0.1 part, active calcium phosphate 0.05-0.15 part, modifying titanium dioxide 0.2-0.5 part, Natvosol 0.1-0.2 part, pulls open powder 2-8 part, defoamer 0.05-0.15 part, whipping agent 7-12 part;
In the preparation process of modifying titanium dioxide, added in acetone by aluminum-zirconium coupling agent TL-4 and stir, then add nano titanium oxide and carry out induction stirring, then water bath heat preservation, then vacuum-drying obtains modifying titanium dioxide.
Preferably, whipping agent is made up of by weight for 4.5-5.5:1 Skellysolve A and iso-pentane.
Preferably, the weight ratio of vinylbenzene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) is 100:23-27:12-14.
Preferably, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 23-27 part, high density polyethylene(HDPE) 12-14 part, water 155-165 part, dibenzoyl peroxide 0.3-0.4 part, peroxidized t-butyl perbenzoate 0.06-0.08 part, active calcium phosphate 0.08-0.12 part, modifying titanium dioxide 0.3-0.4 part, Natvosol 0.12-0.18 part, pulls open powder 4-6 part, defoamer 0.07-0.12 part, whipping agent 8-11 part.
Preferably, in the preparation process of modifying titanium dioxide, by weight 0.4-1.5 part aluminum-zirconium coupling agent TL-4 is added in 45-55 part acetone and stir, add 95-100 part nano titanium oxide again and carry out induction stirring, induction stirring speed is 5000-6000rpm, then water bath heat preservation 15-25min, the temperature of water bath heat preservation is 69-71 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Preferably, the weight ratio of dibenzoyl peroxide and peroxidized t-butyl perbenzoate is 5:1.
Preferably, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 25 parts, high density polyethylene(HDPE) 13 parts, 160 parts, water, dibenzoyl peroxide 0.35 part, peroxidized t-butyl perbenzoate 0.07 part, active calcium phosphate 0.1 part, modifying titanium dioxide 0.35 part, Natvosol 0.15 part, pulls open 5 parts, powder, defoamer 0.1 part, whipping agent 10 parts.
The preparation method of the above-mentioned high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention also proposes, by water, active calcium phosphate, Natvosol, pull open powder, defoamer and vinylbenzene and add in reaction vessel and stir, then add dibenzoyl peroxide, peroxidized t-butyl perbenzoate and modifying titanium dioxide successively and stir; Temperature is risen to 90 DEG C, insulation 3-4h obtains polystyrene; Then ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) are added in the reaction vessel containing polystyrene, be warming up to the complete melting of polystyrene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE), whipping agent is added after stirring, insulation 3-4h, in insulating process, pressure is 1-1.2MPa; Be cooled to room temperature and obtain high-tenacity high-elasticity Expandable Polystyrene (EPS).
Pull open powder for having another name called Nekal BX, penetrating agent BX, its main component is diisobutyl sodium naphthalene sulfonate.
The present invention adopts vinylbenzene as synthon, dibenzoyl peroxide, peroxidized t-butyl perbenzoate cooperatively interact as initiator, make vinylbenzene polymerization reaction take place, and active calcium phosphate is as dispersion agent, modifying titanium dioxide is impelled to be uniformly dispersed in polystyrene, modifying titanium dioxide is grafted on polystyrene by aluminum-zirconium coupling agent TL-4, substantially increases toughness of the present invention and shock resistance; Adopt ethylene-vinyl acetate copolymer, high density polyethylene(HDPE) and polystyrene blend modification, can significantly improve erosion resistance of the present invention, hardness, tensile strength and creep properties, and water tolerance, wear resistance, toughness and winter hardiness are all better, further improves resilience and heat-insulating property; Wherein whipping agent is made up of Skellysolve A and iso-pentane, with modifying titanium dioxide with the use of, make uniform in foaming of the present invention, cell size is close, and Skellysolve A and iso-pentane are pneumatogen, and blowing temperature is low, is easy to control, can also energy efficient.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 20 parts, high density polyethylene(HDPE) 15 parts, 150 parts, water, dibenzoyl peroxide 0.5 part, peroxidized t-butyl perbenzoate 0.05 part, active calcium phosphate 0.15 part, modifying titanium dioxide 0.2 part, Natvosol 0.2 part, pulls open 2 parts, powder, defoamer 0.15 part, whipping agent 7 parts; Wherein whipping agent is made up of by weight for 4.5:1 Skellysolve A and iso-pentane;
In the preparation process of modifying titanium dioxide, by weight 0.8 part of aluminum-zirconium coupling agent TL-4 is added in 52 parts of acetone and stir, add 96 parts of nano titanium oxides again and carry out induction stirring, induction stirring speed is 5700rpm, then water bath heat preservation 23min, the temperature of water bath heat preservation is 70.5 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Embodiment 2
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 27 parts, high density polyethylene(HDPE) 12 parts, 165 parts, water, dibenzoyl peroxide 0.3 part, peroxidized t-butyl perbenzoate 0.08 part, active calcium phosphate 0.08 part, modifying titanium dioxide 0.4 part, Natvosol 0.12 part, pulls open 6 parts, powder, defoamer 0.07 part, whipping agent 11 parts;
In the preparation process of modifying titanium dioxide, by weight 0.4 part of aluminum-zirconium coupling agent TL-4 is added in 55 parts of acetone and stir, add 95 parts of nano titanium oxides again and carry out induction stirring, induction stirring speed is 6000rpm, then water bath heat preservation 15min, the temperature of water bath heat preservation is 71 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Embodiment 3
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 25 parts, high density polyethylene(HDPE) 13 parts, 160 parts, water, dibenzoyl peroxide 0.35 part, peroxidized t-butyl perbenzoate 0.07 part, active calcium phosphate 0.1 part, modifying titanium dioxide 0.35 part, Natvosol 0.15 part, pulls open 5 parts, powder, defoamer 0.1 part, whipping agent 10 parts; Wherein whipping agent is made up of by weight for 5:1 Skellysolve A and iso-pentane;
In the preparation process of modifying titanium dioxide, by weight 1 part of aluminum-zirconium coupling agent TL-4 is added in 50 parts of acetone and stir, add 97 parts of nano titanium oxides again and carry out induction stirring, induction stirring speed is 5500rpm, then water bath heat preservation 20min, the temperature of water bath heat preservation is 70 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Embodiment 4
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 23 parts, high density polyethylene(HDPE) 14 parts, 155 parts, water, dibenzoyl peroxide 0.4 part, peroxidized t-butyl perbenzoate 0.06 part, active calcium phosphate 0.12 part, modifying titanium dioxide 0.3 part, Natvosol 0.18 part, pulls open 4 parts, powder, defoamer 0.12 part, whipping agent 8 parts; Wherein whipping agent is made up of by weight for 5.5:1 Skellysolve A and iso-pentane;
In the preparation process of modifying titanium dioxide, by weight 1.5 parts of aluminum-zirconium coupling agent TL-4 are added in 45 parts of acetone and stir, add 100 parts of nano titanium oxides again and carry out induction stirring, induction stirring speed is 5000rpm, then water bath heat preservation 25min, the temperature of water bath heat preservation is 69 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Embodiment 5
A kind of high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention proposes, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 30 parts, high density polyethylene(HDPE) 10 parts, 170 parts, water, dibenzoyl peroxide 0.2 part, peroxidized t-butyl perbenzoate 0.1 part, active calcium phosphate 0.05 part, modifying titanium dioxide 0.5 part, Natvosol 0.1 part, pulls open 8 parts, powder, defoamer 0.05 part, whipping agent 12 parts;
In the preparation process of modifying titanium dioxide, by weight 1.2 parts of aluminum-zirconium coupling agent TL-4 are added in 47 parts of acetone and stir, add 98 parts of nano titanium oxides again and carry out induction stirring, induction stirring speed is 5300rpm, then water bath heat preservation 22min, the temperature of water bath heat preservation is 69.5 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
Embodiment 6
The preparation method of the above-mentioned high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention also proposes: by water, active calcium phosphate, Natvosol, pull open powder, defoamer and vinylbenzene and add in reaction vessel and stir, then add dibenzoyl peroxide, peroxidized t-butyl perbenzoate and modifying titanium dioxide successively and stir; Temperature is risen to 90 DEG C, insulation 3h obtains polystyrene; Then ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) are added in the reaction vessel containing polystyrene, be warming up to the complete melting of polystyrene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE), add whipping agent after stirring, insulation 4h, in insulating process, pressure is 1MPa; Be cooled to room temperature and obtain high-tenacity high-elasticity Expandable Polystyrene (EPS).
Embodiment 7
The preparation method of the above-mentioned high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention also proposes: by water, active calcium phosphate, Natvosol, pull open powder, defoamer and vinylbenzene and add in reaction vessel and stir, then add dibenzoyl peroxide, peroxidized t-butyl perbenzoate and modifying titanium dioxide successively and stir; Temperature is risen to 90 DEG C, insulation 4h obtains polystyrene; Then ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) are added in the reaction vessel containing polystyrene, be warming up to the complete melting of polystyrene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE), add whipping agent after stirring, insulation 3h, in insulating process, pressure is 1.2MPa; Be cooled to room temperature and obtain high-tenacity high-elasticity Expandable Polystyrene (EPS).
Embodiment 8
The preparation method of the above-mentioned high-tenacity high-elasticity Expandable Polystyrene (EPS) that the present invention also proposes, by water, active calcium phosphate, Natvosol, pull open powder, defoamer and vinylbenzene and add in reaction vessel and stir, then add dibenzoyl peroxide, peroxidized t-butyl perbenzoate and modifying titanium dioxide successively and stir; Temperature is risen to 90 DEG C, insulation 3.5h obtains polystyrene; Then ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) are added in the reaction vessel containing polystyrene, be warming up to the complete melting of polystyrene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE), whipping agent is added after stirring, insulation 3.5h, in insulating process, pressure is 1.1MPa; Be cooled to room temperature and obtain high-tenacity high-elasticity Expandable Polystyrene (EPS).
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a high-tenacity high-elasticity Expandable Polystyrene (EPS), is characterized in that, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 20-30 part, high density polyethylene(HDPE) 10-15 part, water 150-170 part, dibenzoyl peroxide 0.2-0.5 part, peroxidized t-butyl perbenzoate 0.05-0.1 part, active calcium phosphate 0.05-0.15 part, modifying titanium dioxide 0.2-0.5 part, Natvosol 0.1-0.2 part, pull open powder 2-8 part, defoamer 0.05-0.15 part, whipping agent 7-12 part;
In the preparation process of modifying titanium dioxide, added in acetone by aluminum-zirconium coupling agent TL-4 and stir, then add nano titanium oxide and carry out induction stirring, then water bath heat preservation, then vacuum-drying obtains modifying titanium dioxide.
2. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to claim 1, is characterized in that, whipping agent is made up of by weight for 4.5-5.5:1 Skellysolve A and iso-pentane.
3. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to claim 1 or 2, is characterized in that, the weight ratio of vinylbenzene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) is 100:23-27:12-14.
4. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to any one of claim 1-3, it is characterized in that, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 23-27 part, high density polyethylene(HDPE) 12-14 part, water 155-165 part, dibenzoyl peroxide 0.3-0.4 part, peroxidized t-butyl perbenzoate 0.06-0.08 part, active calcium phosphate 0.08-0.12 part, modifying titanium dioxide 0.3-0.4 part, Natvosol 0.12-0.18 part, pull open powder 4-6 part, defoamer 0.07-0.12 part, whipping agent 8-11 part.
5. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to any one of claim 1-4, it is characterized in that, in the preparation process of modifying titanium dioxide, by weight 0.4-1.5 part aluminum-zirconium coupling agent TL-4 is added in 45-55 part acetone and stir, add 95-100 part nano titanium oxide again and carry out induction stirring, induction stirring speed is 5000-6000rpm, then water bath heat preservation 15-25min, the temperature of water bath heat preservation is 69-71 DEG C, and then vacuum-drying obtains modifying titanium dioxide.
6. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to any one of claim 1-5, is characterized in that, the weight ratio of dibenzoyl peroxide and peroxidized t-butyl perbenzoate is 5:1.
7. high-tenacity high-elasticity Expandable Polystyrene (EPS) according to any one of claim 1-6, is characterized in that, its raw material comprises by weight: vinylbenzene 100 parts, ethylene-vinyl acetate copolymer 25 parts, high density polyethylene(HDPE) 13 parts, 160 parts, water, dibenzoyl peroxide 0.35 part, peroxidized t-butyl perbenzoate 0.07 part, active calcium phosphate 0.1 part, modifying titanium dioxide 0.35 part, Natvosol 0.15 part, pull open 5 parts, powder, defoamer 0.1 part, whipping agent 10 parts.
8. the preparation method of a high-tenacity high-elasticity Expandable Polystyrene (EPS) as described in any one of claim 1-7, it is characterized in that, by water, active calcium phosphate, Natvosol, pull open powder, defoamer and vinylbenzene and add in reaction vessel and stir, then add dibenzoyl peroxide, peroxidized t-butyl perbenzoate and modifying titanium dioxide successively and stir; Temperature is risen to 90 DEG C, insulation 3-4h obtains polystyrene; Then ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) are added in the reaction vessel containing polystyrene, be warming up to the complete melting of polystyrene, ethylene-vinyl acetate copolymer and high density polyethylene(HDPE), whipping agent is added after stirring, insulation 3-4h, in insulating process, pressure is 1-1.2MPa; Be cooled to room temperature and obtain high-tenacity high-elasticity Expandable Polystyrene (EPS).
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