CN105176014A - PBT toughening plastic and preparation method thereof - Google Patents
PBT toughening plastic and preparation method thereof Download PDFInfo
- Publication number
- CN105176014A CN105176014A CN201510605745.5A CN201510605745A CN105176014A CN 105176014 A CN105176014 A CN 105176014A CN 201510605745 A CN201510605745 A CN 201510605745A CN 105176014 A CN105176014 A CN 105176014A
- Authority
- CN
- China
- Prior art keywords
- parts
- pbt
- styrene
- butadiene rubber
- vulcabond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The invention discloses a PBT toughening plastic and a preparation method thereof. The PBT toughening plastic is prepared from PBT, calcium stearate, glycol, 1, 4-butanediol, diphenyl methane-4, 4 diisocyanate, calcium carbonate, styrene-butadiene rubber, EVA, GF and EPDM. The friction coefficient of a product is 0.15-0.35, the transverse shrinkage rate 1-1.4%, the longitudinal shrinkage rate is 0.8-1.2%, the shrinkage ratio is 1-1.4, thermal deformation temperature is 245-265 DEG C, the tensile strength is 65-85 MPa, the impact strength is 45-65 KL/m<2> and is improved by more than 40 times compared with the impact strength of pure PBT, the elongation at break is 400-600%, the bending strength is 40-60 MPa, and the Shore hardness is 55-65 D.
Description
Technical field
The present invention relates to plastics arts, particularly relate to a kind of PBT toughened plastics and preparation method thereof.
Background technology
Plastic pellet is being commonly called as of plastic grain, and to be plastics carry out storing with work in-process form, transport and the raw material of machine-shaping.Plastics are family macromolecule materials, are that raw material can obtain BDO, propylene, chlorine BDO, benzene BDO etc. with oil, and the molecule of these materials can react to each other under certain condition and generate the very large compound of molecular weight, i.e. polymer.
The most outstanding character of polypropylene is versatility, and it can be suitable for many working methods and purposes.Its value and versatility mainly from excellent chemical resistance, in the thermoplastics of ancestor in minimum density and the highest fusing point, moderate cost.
Plastics are derivatives of oil, and the market value of plastics depends on the equilibrium of supply and demand in market.The plastics market of China has plastics material of an established trade mark, secondary board material, and reprocessed plastic(s) are formed, and international turn of the market is not very large on domestic impact, and much cheap plastic waste is come from external import, has delayed the impact of International Crude Oil variation on China market.But the ups and downs of international oil price are certainly influential, and plastic waste price is also in ups and downs.
Poly-BDO, polypropylene, polychlorostyrene BDO, polyphenyl BDO, our normally used plastics are exactly by above-mentioned four kinds of molecular materials of high score (poly-BDO, sound embrittlement during polypropylene film shake; Polychlorostyrene BDO film is then more soft, without embrittlement sound during shake; Expanded plastic is generally polyphenyl BDO, has dense smoke during burning).Begin from the sixties in last century, plastics enter the extensive practical stage, because plastics have lot of advantages: it draws materials easily, cheap, easy to process, quality is light and handy, and therefore plastics one come out, just deeply welcome by the world, it penetrates into different social sectors rapidly, and plastics are made into bowl, cup, bag, basin, bucket, pipe etc., and plastics are listed in one of 20th century greatest invention, the universal of plastics is described as White Revolution.Along with plastics output constantly increases, cost is more and more lower, a large amount of agricultural films that we used, and wrapping plastics bag and disposable plastic tableware are abandoned after a procedure in the environment, are brought very havoc to view and environment.Because plastic packing article is mostly in white, the environmental pollution that they cause is called as white pollution.
PBT moisture-absorption characteristics is very weak.The tensile strength of non-reinforcing type PBT is 50MPa, and the PBT tensile strength of glass additive type is 170MPa.Glass additive too much will cause material to become fragile.PBT's; Crystallization is very rapid, and this will cause causing flexural deformation because inhomogeneous cooling is even.For the material having glass additive type, the shrinking percentage of flow direction can reduce, but substantially as broad as long with common material with the shrinking percentage of flow process vertical direction.General material contracts rate is between 1.5% ~ 2.8%.Between material contracts 0.3% ~ 1.6% containing 30% glass additive.Fusing point (225%C) and high temperature deformation temperature all low than PET material.Vicat softening temperature is approximately 170C.Glass transition temperature is between 22C to 43C.Because the crystallization velocity of PBT is very high, therefore its viscosity is very low, and the cycle time of plastic processing is general also lower.
Before PBT injection moulding must at the temperature of 110 ~ 120 DEG C dry 3 hours, forming process temperature is 250 ~ 270 DEG C, and die temperance control is advisable at 50 ~ 75 DEG C.Because of this material from molten state once cooling, then can solidification and crystallization immediately, therefore its cooling time is shorter; If nozzle temperature controls improper (on the low side), runner (mouth of a river) is cooling curing easily, there will be phenomenon of gaging somebody.If barrel temperature more than 275 DEG C or melt residence time in barrel more than 30 minutes, easily cause material breakdown to become fragile.Glue need be entered with comparatively style big water gap during PBT injection moulding; hot runner system should not be used; die venting wants good; the condition forming process of " at a high speed, middle pressure, middle temperature " should be used; the PBT regrinding-material expecting or add glass of preventing fires should not be recycled; pipe need be expected, in order to avoid carbonization with the cleaning in time of PE or PP material during shutdown.
Summary of the invention
The invention provides that a kind of tensile strength is high, flexural strength is high, shock strength is high and PBT toughened plastics that elongation at break is high and preparation method thereof, solve the technical problems such as the low and flexural strength of existing plastic pellet tensile strength is low.
The present invention is by the following technical solutions: a kind of PBT toughened plastics, and it is as follows that mass fraction proportioning pressed by its raw material: PBT100 part, calcium stearate 5-25 part, hexylene glycol 10-30 part, BDO 15-35 part, ditan-4,4 vulcabond 20-40 parts, calcium carbonate 1-20 part, styrene-butadiene rubber(SBR) 25-45 part, EVA5-25 part, GF20-40 part, EPDM30-50 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 10 parts, hexylene glycol 15 parts, 1,4-butyleneglycol 20 parts, ditan-4,4 vulcabond 25 parts, 5 parts, calcium carbonate; 30 parts, styrene-butadiene rubber(SBR); EVA10 part, GF25 part, EPDM35 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 20 parts, hexylene glycol 25 parts, 1,4-butyleneglycol 30 parts, ditan-4,4 vulcabond 35 parts, 15 parts, calcium carbonate; 40 parts, styrene-butadiene rubber(SBR); EVA20 part, GF35 part, EPDM45 part.
As a preferred technical solution of the present invention: it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 15 parts, hexylene glycol 20 parts, 1,4-butyleneglycol 25 parts, ditan-4,4 vulcabond 30 parts, 10 parts, calcium carbonate; 35 parts, styrene-butadiene rubber(SBR); EVA15 part, GF30 part, EPDM40 part.
Prepare a method for described PBT toughened plastics, step is:
The first step: take PBT, calcium stearate, hexylene glycol, BDO, ditan-4,4 vulcabond, calcium carbonate, styrene-butadiene rubber(SBR), EVA, GF and EPDM according to mass fraction proportioning;
Second step: calcium stearate and EVA are dropped in reactor and mix 35-55min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 70-90 DEG C, with 165-185r/min speed mixing 50-70min;
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 190-230 DEG C.
beneficial effect
A kind of PBT toughened plastics of the present invention and preparation method thereof adopts above technical scheme compared with prior art, there is following technique effect: 1, product frictional coefficient 0.15-0.35, lateral shrinkage 1-1.4%, longitudinal contraction rate 0.8-1.2%, contraction ratio 1-1.4, heat-drawn wire 245-265 DEG C; 2, tensile strength 65-85MPa, shock strength 45-65kJ/m
2, improve more than 40 times than pure PBT, elongation at break 400-600%; 3, flexural strength 40-60MPa, shore hardness 55-65D, preparation method is simple, and raw material is simple and easy to get, the widespread production not division of history into periods can replace current material.
Embodiment
Below in conjunction with example, the invention will be further described, and embodiment, only for the present invention will be described, does not form the restriction to right, and other alternative means that it may occur to persons skilled in the art that, all within the scope of the claims in the present invention.
Embodiment 1:
The first step: take PBT100 part according to mass fraction proportioning, calcium stearate 5 parts, hexylene glycol 10 parts, BDO 15 parts, ditan-4,4 vulcabond 20 parts, 1 part, calcium carbonate, 25 parts, styrene-butadiene rubber(SBR), EVA5 part, GF20 part, EPDM30 part.
Second step: calcium stearate and EVA are dropped in reactor and mix 35min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 70 DEG C, with 165r/min speed mixing 50min.
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 190 DEG C.
Product frictional coefficient 0.35, lateral shrinkage 1%, longitudinal contraction rate 0.8%, contraction ratio 1, heat-drawn wire 245 DEG C; Tensile strength 65MPa, shock strength 45kJ/m
2, improve more than 40 times than pure PBT, elongation at break 400%; Flexural strength 40MPa, shore hardness 55D.
Embodiment 2:
The first step: take PBT100 part according to mass fraction proportioning, calcium stearate 25 parts, hexylene glycol 30 parts, BDO 35 parts, ditan-4,4 vulcabond 40 parts, 20 parts, calcium carbonate, 45 parts, styrene-butadiene rubber(SBR), EVA25 part, GF40 part, EPDM50 part.
Second step: calcium stearate and EVA are dropped in reactor and mix 55min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 90 DEG C, with 185r/min speed mixing 70min.
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 230 DEG C.
Product frictional coefficient 0.3, lateral shrinkage 1.1%, longitudinal contraction rate 0.9%, contraction ratio 1.1, heat-drawn wire 250 DEG C; Tensile strength 70MPa, shock strength 50kJ/m
2, improve more than 40 times than pure PBT, elongation at break 450%; Flexural strength 45MPa, shore hardness 55D.
Embodiment 3:
The first step: take PBT100 part according to mass fraction proportioning, calcium stearate 10 parts, hexylene glycol 15 parts, BDO 20 parts, ditan-4,4 vulcabond 25 parts, 5 parts, calcium carbonate, 30 parts, styrene-butadiene rubber(SBR), EVA10 part, GF25 part, EPDM35 part.
Second step: calcium stearate and EVA are dropped in reactor and mix 35min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 70 DEG C, with 165r/min speed mixing 50min.
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 190 DEG C.
Product frictional coefficient 0.25, lateral shrinkage 1.2%, longitudinal contraction rate 1%, contraction ratio 1.2, heat-drawn wire 255 DEG C; Tensile strength 75MPa, shock strength 55kJ/m
2, improve more than 40 times than pure PBT, elongation at break 500%; Flexural strength 50MPa, shore hardness 60D.
Embodiment 4:
The first step: take PBT100 part according to mass fraction proportioning, calcium stearate 20 parts, hexylene glycol 25 parts, BDO 30 parts, ditan-4,4 vulcabond 35 parts, 15 parts, calcium carbonate, 40 parts, styrene-butadiene rubber(SBR), EVA20 part, GF35 part, EPDM45 part.
Second step: calcium stearate and EVA are dropped in reactor and mix 55min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 90 DEG C, with 185r/min speed mixing 70min.
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 230 DEG C.
Product frictional coefficient 0.2, lateral shrinkage 1.3%, longitudinal contraction rate 1.1%, contraction ratio 1.3, heat-drawn wire 260 DEG C; Tensile strength 80MPa, shock strength 60kJ/m
2, improve more than 40 times than pure PBT, elongation at break 550%; Flexural strength 50MPa, shore hardness 60D.
Embodiment 5:
The first step: take PBT100 part according to mass fraction proportioning, calcium stearate 15 parts, hexylene glycol 20 parts, BDO 25 parts, ditan-4,4 vulcabond 30 parts, 10 parts, calcium carbonate, 35 parts, styrene-butadiene rubber(SBR), EVA15 part, GF30 part, EPDM40 part.
Second step: calcium stearate and EVA are dropped in reactor and mix 45min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 80 DEG C, with 175r/min speed mixing 60min.
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 210 DEG C.
Product frictional coefficient 0.15, lateral shrinkage 1.4%, longitudinal contraction rate 1.2%, contraction ratio 1.4, heat-drawn wire 265 DEG C; Tensile strength 85MPa, shock strength 65kJ/m
2, improve more than 40 times than pure PBT, elongation at break 600%; Flexural strength 60MPa, shore hardness 65D.
Claims (5)
1. a PBT toughened plastics, is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 5-25 part, hexylene glycol 10-30 part, 1,4-butyleneglycol 15-35 part, ditan-4,4 vulcabond 20-40 part, calcium carbonate 1-20 part; styrene-butadiene rubber(SBR) 25-45 part; EVA5-25 part, GF20-40 part, EPDM30-50 part.
2. a kind of PBT toughened plastics according to claim 1, is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 10 parts, hexylene glycol 15 parts, 1,4-butyleneglycol 20 parts, ditan-4,4 vulcabond 25 parts, 5 parts, calcium carbonate; 30 parts, styrene-butadiene rubber(SBR); EVA10 part, GF25 part, EPDM35 part.
3. a kind of PBT toughened plastics according to claim 1, is characterized in that, it is as follows that mass fraction proportioning pressed by the raw material of described PBT toughened plastics: PBT100 part, calcium stearate 20 parts, hexylene glycol 25 parts, 1,4-butyleneglycol 30 parts, ditan-4,4 vulcabond 35 parts, 15 parts, calcium carbonate; 40 parts, styrene-butadiene rubber(SBR); EVA20 part, GF35 part, EPDM45 part.
4. a kind of PBT toughened plastics according to claim 1, is characterized in that: the raw material of described PBT toughened plastics is as follows by mass fraction proportioning: PBT100 part, calcium stearate 15 parts, hexylene glycol 20 parts, BDO 25 parts, ditan-4,4 vulcabond 30 parts, 10 parts, calcium carbonate, 35 parts, styrene-butadiene rubber(SBR), EVA15 part, GF30 part, EPDM40 part.
5. make a method for PBT toughened plastics according to claim 1, it is characterized in that, comprise the steps:
The first step: take PBT, calcium stearate, hexylene glycol, BDO, ditan-4,4 vulcabond, calcium carbonate, styrene-butadiene rubber(SBR), EVA, GF and EPDM according to mass fraction proportioning;
Second step: calcium stearate and EVA are dropped in reactor and mix 35-55min, add PBT, hexylene glycol, BDO and calcium carbonate, be warming up to 70-90 DEG C, with 165-185r/min speed mixing 50-70min;
3rd step: add ditan-4,4 vulcabond, styrene-butadiene rubber(SBR), EVA, GF and EPDM, mixes rear input twin screw extruder, extruding pelletization at being warming up to 190-230 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605745.5A CN105176014A (en) | 2015-09-22 | 2015-09-22 | PBT toughening plastic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605745.5A CN105176014A (en) | 2015-09-22 | 2015-09-22 | PBT toughening plastic and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105176014A true CN105176014A (en) | 2015-12-23 |
Family
ID=54898478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510605745.5A Withdrawn CN105176014A (en) | 2015-09-22 | 2015-09-22 | PBT toughening plastic and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105176014A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445281A (en) * | 2003-04-10 | 2003-10-01 | 广州金发科技股份有限公司 | Super malleable poly butylene terephthalate (PBT) complex and its preparing method |
| WO2007089747A1 (en) * | 2006-01-27 | 2007-08-09 | General Electric Company | Articles derived from compositions containing modified polybutylene terephthalate (pbt) random copolymers derived from polyethylene terephthalate (pet) |
| CN103131138A (en) * | 2011-11-23 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Thermoplastic polyester composition and preparation method thereof |
| CN103709623A (en) * | 2012-09-28 | 2014-04-09 | 青岛欣展塑胶有限公司 | PBT/elastomer/inorganic filler ternary composite material |
-
2015
- 2015-09-22 CN CN201510605745.5A patent/CN105176014A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445281A (en) * | 2003-04-10 | 2003-10-01 | 广州金发科技股份有限公司 | Super malleable poly butylene terephthalate (PBT) complex and its preparing method |
| WO2007089747A1 (en) * | 2006-01-27 | 2007-08-09 | General Electric Company | Articles derived from compositions containing modified polybutylene terephthalate (pbt) random copolymers derived from polyethylene terephthalate (pet) |
| CN103131138A (en) * | 2011-11-23 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Thermoplastic polyester composition and preparation method thereof |
| CN103709623A (en) * | 2012-09-28 | 2014-04-09 | 青岛欣展塑胶有限公司 | PBT/elastomer/inorganic filler ternary composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102532837B (en) | Preparation method for high molecular weight polylactic acid steric composite | |
| CN104371296B (en) | Poly-methyl ethylene carbonate composition and preparation method thereof | |
| CN104650506A (en) | Degradable environment-friendly plastic | |
| CN107652641A (en) | Low-cost bio based fully degradable high transmittance film and preparation method thereof | |
| CN101983986B (en) | Transparent and toughening polylactic acid resin and method for preparing the same | |
| CN111621239B (en) | Full-biodegradable adhesive tape and preparation method thereof | |
| CN102558679A (en) | Novel bamboo fiber/polypropylene composite material and method for preparing same | |
| CN105778143A (en) | Foaming method for biodegradable starch-based foamed plastic | |
| CN113045881A (en) | Thermal-shrinkage degradable environment-friendly film material and preparation method and application method thereof | |
| CN109504042A (en) | PHA modified TPS/PBAT biodegradable resin and preparation method thereof | |
| CN108976731A (en) | A kind of preparation method of polylactic acid opaque straw | |
| KR101820247B1 (en) | Resin compositions for improving clarity and thermal resistance of stereocomplexed polylactic acid | |
| CN109535673B (en) | Heat-resistant impact-resistant high-transparency polylactic acid composite material and preparation method thereof | |
| CN105176014A (en) | PBT toughening plastic and preparation method thereof | |
| CN105176022A (en) | Polylactic acid toughening modification plastic and preparation method thereof | |
| CN107964145A (en) | A kind of preparation method of double-strength pipe timber-used environment-friendly engineering plastics | |
| CN105038048A (en) | Reinforced PTFE and preparation method thereof | |
| CN106366592B (en) | A kind of high heat resistance type polylactic acid Wood-like composite material and preparation method thereof | |
| US20150353729A1 (en) | Biodegradable Synthetic Polymer Material | |
| CN111087766A (en) | Thermoplastic blend material, blend thermoplastic film and preparation method thereof | |
| CN109280319A (en) | A kind of guitar neck and its processing method | |
| CN106867072A (en) | The formula and its production technology of a kind of new PO and PET alloy inspection shaft | |
| CN111978695B (en) | Degradable full-bio-based high-toughness polylactic acid composite material and preparation method thereof | |
| CN114605798A (en) | Production process of degradable high polymer material film | |
| CN104974481A (en) | PET toughened plastic and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151223 |