CN104788941A - Environment-friendly degradable TPU film and preparation method thereof - Google Patents
Environment-friendly degradable TPU film and preparation method thereof Download PDFInfo
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- CN104788941A CN104788941A CN201510184839.XA CN201510184839A CN104788941A CN 104788941 A CN104788941 A CN 104788941A CN 201510184839 A CN201510184839 A CN 201510184839A CN 104788941 A CN104788941 A CN 104788941A
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Abstract
The invention discloses an environment-friendly degradable TPU film. The environment-friendly degradable TPU film comprises the following components in parts by weight: 80-90 parts of TPU granules, 10-15 parts of modified nanocalcium carbonate, 5-15 parts of EVA, 0.5-1 part of an ultraviolet absorber and 0.5-1 part of a photodegradable agent. Compared with the prior art, the environment-friendly degradable TPU film has the advantages of low cost, excellent heat resistance and comprehensive mechanical properties and short degradation period.
Description
Technical field
The present invention relates to TPU film technical field, particularly relate to a kind of environment-friendly type degradable TPU film and preparation method thereof.
Background technology
TPU is Polyurethane Thermoplastic Elastomer rubber, and be mainly divided into polyester type and polyether-type two class, it has the low-temperature performance of good oil-proofness, ozone resistance and excellence, is used widely in fields such as daily necessities, sports goods, toy, finishing material.But, because its intensity is not high, poor heat resistance, inflammable, and at high temperature easily there is softening, decomposition, mechanical property is sharply declined, generally, its life-time service temperature can not more than 80 DEG C, and short-period used temperature more than 120 DEG C, can not which greatly limits its range of application.How while raising TPU resistance toheat, ensureing that its over-all properties does not decline or do not change, is an emphasis studying TPU of people for many years.Inorganic materials generally has the features such as high-melting-point, high rigidity, wear-resistant, corrosion-resistant and good antioxidant property.In addition, inorganic nano-particle has unique optical, electrical, magnetic and chemical property, this be prepare high-performance, multifunctional composite specifies new direction.In recent years, inoganic particle modifiedly one of means of TPU modification are become.But the method for the inoganic particle modified TPU of existing employing, for the over-all properties reaching material is better, the usage quantity of inorganic particulate is less, cannot reduce the cost of manufacture of TPU film, is also difficult to reach environmental protection, degradable target, and effect is also undesirable.
Summary of the invention
The object of the invention is to the defect overcoming above-mentioned prior art, a kind of environment-friendly type degradable TPU film is provided, this TPU film reduces cost owing to employing inorganic materials in a large number, has preferably thermotolerance and comprehensive mechanical property simultaneously, has environmental protection, degradable advantage.
For achieving the above object, the present invention adopts following technical scheme:
A kind of environment-friendly type degradable TPU film, it comprises following component by weight:
TPU particle 80 ~ 90 parts
Modified nano calcium carbonate 10 ~ 15 parts
EVA 5 ~ 15 parts
UV light absorber 0.5 ~ 1 part
Photodegradable aid 0.5 ~ 1 part.
Preferably, described modified nano calcium carbonate is boric acid ester coupler modified nano calcium carbonate.
Preferably, described modified nano calcium carbonate adopts the method for mechanical blending in high-speed mixer, add nano-calcium carbonate and boric acid ester coupler, stirring velocity is 1000 ~ 1500r/min, churning time is 5 ~ 10min, and the mass ratio of nano-calcium carbonate and boric acid ester coupler is 100:(1 ~ 2).
Preferably, described UV light absorber is that UV light absorber NP3 mixes with UV light absorber UV531 or UV light absorber UV328.
Preferably, described photodegradable aid is iron stearate.
Another object of the present invention is to the preparation method providing above-mentioned environment-friendly type degradable TPU film, it comprises the following steps:
(1) prepare modified nano calcium carbonate: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min;
(2) the TPU particle of formula ratio, modified nano calcium carbonate, EVA, UV light absorber, photodegradable aid are added mixing machine high speed and be mixed;
(3) extrusion moulding in casting machine is delivered to by after the material drying be mixed, casting machine each district temperature is: barrel temperature 180 ~ 200 DEG C, filter screen temperature 190 ~ 205 DEG C, elbow temperature 190 ~ 205 DEG C, connect temperature 190 ~ 205 DEG C, die head temperature 190 ~ 200 DEG C.
Preferably, the rotating speed that step (2) is mixed at a high speed is 800 ~ 1000r/min.
Preferably, step (3) drying temperature is 70 ~ 80 DEG C, and time of drying is 2 ~ 4h.
Compared with prior art, the present invention have that cost is low, resistance toheat and comprehensive mechanical property is excellent, degradation cycle is short advantage:
1, the content of inorganic materials nano-calcium carbonate is high, reduce the cost of finished film on the one hand, other direction, after adopting boric acid ester coupler modified nano calcium carbonate, the intermiscibility of nano-calcium carbonate and TPU particle is good, the introducing of adding EVA material improves the intermiscibility of inorganic materials and organic materials further, form stable phase solution system, the nano-calcium carbonate of high-content can improve the deficiency of TPU particle in resistance toheat and on comprehensive mechanical property, substantially increase into thin thermotolerance and comprehensive mechanical property, widen the range of application of TPU film.
2, because inorganic material content in TPU film of the present invention is high, reduce the difficulty of degraded, the degradation time adding adjustable film of nano-calcium carbonate, contain UV light absorber and photodegradable aid in film on the other hand, reduce further the degraded difficulty of film, reach environmental objective.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1
A kind of environment-friendly type degradable TPU film, its composition of raw materials is as follows: TPU particle 80 parts, modified nano calcium carbonate 10 parts, EVA 9 parts, UV light absorber 0.5 part, photodegradable aid 0.5 part.
The preparation method of above-mentioned modified nano calcium carbonate is as follows: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min.
The poly density of above-specified high density is 0.950.
Above-mentioned UV light absorber is the mixture of UV light absorber NP3 and UV light absorber UV531.
Above-mentioned photodegradable aid is iron stearate.
The preparation method of above-mentioned environment-friendly type degradable TPU film is as follows:
(1) prepare modified nano calcium carbonate: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min;
(2) the TPU particle of formula ratio, modified nano calcium carbonate, high density polyethylene(HDPE), EVA, UV light absorber, photodegradable aid are added mixing machine high speed and be mixed, rotating speed is 800 ~ 1000r/min, and the time is 10 ~ 20min;
(3) extrusion moulding in casting machine is delivered to by after the material drying be mixed, drying temperature is 70 ~ 80 DEG C, time of drying is 2 ~ 4h, casting machine each district temperature is: barrel temperature 180 ~ 200 DEG C, filter screen temperature 190 ~ 205 DEG C, elbow temperature 190 ~ 205 DEG C, connects temperature 190 ~ 205 DEG C, die head temperature 190 ~ 200 DEG C.
Embodiment 2
A kind of environment-friendly type degradable TPU film, its composition of raw materials is as follows: TPU particle 85 parts, modified nano calcium carbonate 15 parts, EVA 8 parts, UV light absorber 0.8 part, photodegradable aid 1 part.
The preparation method of above-mentioned modified nano calcium carbonate is as follows: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min.
The poly density of above-specified high density is 0.960.
Above-mentioned UV light absorber is the mixture of UV light absorber NP3 and UV light absorber UV328.
Above-mentioned photodegradable aid is iron stearate.
The preparation method of above-mentioned environment-friendly type degradable TPU film is as follows:
(1) prepare modified nano calcium carbonate: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min;
(2) the TPU particle of formula ratio, modified nano calcium carbonate, high density polyethylene(HDPE), EVA, UV light absorber, photodegradable aid are added mixing machine high speed and be mixed, rotating speed is 800 ~ 1000r/min, and the time is 10 ~ 20min;
(3) extrusion moulding in casting machine is delivered to by after the material drying be mixed, drying temperature is 70 ~ 80 DEG C, time of drying is 2 ~ 4h, casting machine each district temperature is: barrel temperature 180 ~ 200 DEG C, filter screen temperature 190 ~ 205 DEG C, elbow temperature 190 ~ 205 DEG C, connects temperature 190 ~ 205 DEG C, die head temperature 190 ~ 200 DEG C.
Embodiment 3
A kind of environment-friendly type degradable TPU film, its composition of raw materials is as follows: TPU particle 90 parts, modified nano calcium carbonate 15 parts, EVA 13 parts, UV light absorber 1 part, photodegradable aid 0.5 part.
The preparation method of above-mentioned modified nano calcium carbonate is as follows: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min.
The poly density of above-specified high density is 0.960.
Above-mentioned UV light absorber is the mixture of UV light absorber NP3 and UV light absorber UV328.
Above-mentioned photodegradable aid is iron stearate.
The preparation method of above-mentioned environment-friendly type degradable TPU film is as follows:
(1) prepare modified nano calcium carbonate: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min;
(2) the TPU particle of formula ratio, modified nano calcium carbonate, high density polyethylene(HDPE), EVA, UV light absorber, photodegradable aid are added mixing machine high speed and be mixed, rotating speed is 800 ~ 1000r/min, and the time is 10 ~ 20min;
(3) extrusion moulding in casting machine is delivered to by after the material drying be mixed, drying temperature is 70 ~ 80 DEG C, time of drying is 2 ~ 4h, casting machine each district temperature is: barrel temperature 180 ~ 200 DEG C, filter screen temperature 190 ~ 205 DEG C, elbow temperature 190 ~ 205 DEG C, connects temperature 190 ~ 205 DEG C, die head temperature 190 ~ 200 DEG C.Embodiment 4 comprehensive mechanical property is tested
Get the TPU film of thickness obtained by the embodiment 1 to 3 of 0.005mm and carry out Mechanics Performance Testing, test result as shown in Table 1.
Table one: mechanical experimental results
The test of embodiment 5 resistance toheat
Measure the TPU film of embodiment 1-3 in accordance with the following methods, and with the TPU film not adding modified nano calcium carbonate for contrast.
By sample drawing-off 100%, by 150 DEG C of hot air treatment 1 minute, then under high-temperature and high-pressure conditions, dispersed dye are used to dye.Dye from room temperature, after rising to 100 DEG C with 1.5 DEG C/min temperature, dye under keeping this temperature 60min.After dyeing terminates, use ultimate strength before and after tension testing machine test processes, and using the ratio of the two as ultimate strength conservation rate, conservation rate is higher, resistance to elevated temperatures is also more excellent.The test result of each embodiment sample as shown in Table 2.
Table two:
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change above-mentioned embodiment and revise.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (8)
1. an environment-friendly type degradable TPU film, is characterized in that comprising following component by weight:
TPU particle 80 ~ 90 parts
Modified nano calcium carbonate 10 ~ 15 parts
EVA 5 ~ 15 parts
UV light absorber 0.5 ~ 1 part
Photodegradable aid 0.5 ~ 1 part.
2. environment-friendly type degradable TPU film as claimed in claim 1, is characterized in that: described modified nano calcium carbonate is boric acid ester coupler modified nano calcium carbonate.
3. environment-friendly type degradable TPU film as claimed in claim 2, it is characterized in that: described modified nano calcium carbonate adopts the method for mechanical blending in high-speed mixer, add nano-calcium carbonate and boric acid ester coupler, stirring velocity is 1000 ~ 1500r/min, churning time is 5 ~ 10min, and the mass ratio of nano-calcium carbonate and boric acid ester coupler is 100:(1 ~ 2).
4. environment-friendly type degradable TPU film as claimed in claim 1, is characterized in that: described UV light absorber is that UV light absorber NP3 mixes with UV light absorber UV531 or UV light absorber UV328.
5. environment-friendly type degradable TPU film as claimed in claim 1, is characterized in that: described photodegradable aid is iron stearate.
6. the preparation method of the environment-friendly type degradable TPU film described in claim 1 to 5 any one, comprises the following steps:
(1) prepare modified nano calcium carbonate: in mixing machine, drop into mass ratio is 100:(1 ~ 2) nano-calcium carbonate and boric acid ester coupler, then high-speed stirring 5 ~ 10min, stirring velocity is 1000 ~ 1500r/min;
(2) the TPU particle of formula ratio, modified nano calcium carbonate, EVA, UV light absorber, photodegradable aid are added mixing machine high speed and be mixed;
(3) extrusion moulding in casting machine is delivered to by after the material drying be mixed, casting machine each district temperature is: barrel temperature 180 ~ 200 DEG C, filter screen temperature 190 ~ 205 DEG C, elbow temperature 190 ~ 205 DEG C, connect temperature 190 ~ 205 DEG C, die head temperature 190 ~ 200 DEG C.
7. the preparation method of environment-friendly type degradable TPU film as claimed in claim 6, is characterized in that: the rotating speed that step (2) is mixed at a high speed is 800 ~ 1000r/min.
8. the preparation method of environment-friendly type degradable TPU film as claimed in claim 6, it is characterized in that: step (3) drying temperature is 70 ~ 80 DEG C, time of drying is 2 ~ 4h.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315652A (en) * | 2015-11-06 | 2016-02-10 | 苏州瑞高新材料有限公司 | High-bonding-strength air permeable bacteriostatic TPU composite film and preparation method thereof |
| CN106318246A (en) * | 2016-08-12 | 2017-01-11 | 浙江山联新材料科技有限公司 | Method for manufacturing environment-friendly adhesive tape made from calcium carbonate thin film |
| CN106867230A (en) * | 2017-01-22 | 2017-06-20 | 江苏欣润塑胶有限公司 | A kind of degradable TPU membrane |
| CN107033797A (en) * | 2016-12-01 | 2017-08-11 | 江苏宏远新材料科技有限公司 | High temperature resistant tpu film |
| CN113372592A (en) * | 2021-06-23 | 2021-09-10 | 丹阳格泰新材料科技有限公司 | Transparent mirror surface TPU film and preparation method thereof |
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| CN1441003A (en) * | 2003-04-03 | 2003-09-10 | 阎俊龙 | Thermoplastic elastomer and its production process |
| CN1552757A (en) * | 2003-05-28 | 2004-12-08 | 上海杰事杰新材料股份有限公司 | Microporous membrane, preparing method and use |
| CN103483803A (en) * | 2013-09-22 | 2014-01-01 | 东莞市安拓普塑胶聚合物科技有限公司 | Halogen-free full fogging face polyurethane composition and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1441003A (en) * | 2003-04-03 | 2003-09-10 | 阎俊龙 | Thermoplastic elastomer and its production process |
| CN1552757A (en) * | 2003-05-28 | 2004-12-08 | 上海杰事杰新材料股份有限公司 | Microporous membrane, preparing method and use |
| CN103483803A (en) * | 2013-09-22 | 2014-01-01 | 东莞市安拓普塑胶聚合物科技有限公司 | Halogen-free full fogging face polyurethane composition and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315652A (en) * | 2015-11-06 | 2016-02-10 | 苏州瑞高新材料有限公司 | High-bonding-strength air permeable bacteriostatic TPU composite film and preparation method thereof |
| CN106318246A (en) * | 2016-08-12 | 2017-01-11 | 浙江山联新材料科技有限公司 | Method for manufacturing environment-friendly adhesive tape made from calcium carbonate thin film |
| CN107033797A (en) * | 2016-12-01 | 2017-08-11 | 江苏宏远新材料科技有限公司 | High temperature resistant tpu film |
| CN106867230A (en) * | 2017-01-22 | 2017-06-20 | 江苏欣润塑胶有限公司 | A kind of degradable TPU membrane |
| CN113372592A (en) * | 2021-06-23 | 2021-09-10 | 丹阳格泰新材料科技有限公司 | Transparent mirror surface TPU film and preparation method thereof |
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