CN102993582B - A kind of CPE/SBS/PET blended compound material and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of CPE/SBS/PET blended compound material, be made up of the raw material of following weight portion: CPE 70-80, SBS 20-30, modified PET 10-20, dibutyl phthalate 5-10, semi-reinforcing hydrocarbon black 20-30, activated Calcium carbonate 10-20, attapulgite modified 10-15, cumyl peroxide 5-8, APP 2-4, lead sulfate tribasic 2-3, magnesium oxide 2-3, zinc oxide 1-2, waste oil residue 10-20, Vulcanization accelerator TMTD 0.1-0.3, altax 0.5-1, age resistor ODA 1-2, antioxidant 168 1-2.Compared with pure CPE, CPE/SBS/PET blended compound material has following feature: 1. significantly improve resistance to ozone and the performance such as Weather-resistant, resistant of high or low temperature；2. improve hot strength, stress at definite elongation, tear resistance, thermostability, flame resistance, fatigue resistance and rub resistance；3. improve the performances such as oil resistant, resistance to fuel oil and chemical-resistant resistance；4. improve extrusion, drawability, sizing material not easily autovulcanization, enhances bin stability simultaneously.

Description

A kind of CPE/SBS/PET blended compound material and preparation method thereof

Technical field

The present invention relates to a kind of rubber-plastics material, be specifically related to a kind of CPE/SBS/PET blended compound material and preparation method thereof.

Background technology

CPE(chlorinated polyethylene) it is a kind of new modified materials, it it is the product after the part hydrogen atom on polyethylene molecular chain is substituted by a chlorine atom both, chlorinty is the CPE genus thermoplastic elastomer (TPE) of about 35%, it is characterized in that namely without sulfuration be have higher intensity and dimensional stability, and substantial amounts of inorganic filler can be filled, therefore it is widely used in all kinds of rubber-plastics materials.But, add rubber-plastics material prepared by inorganic filler with CPE merely, though intensity is higher, hardness also tends to relatively big, but this all solves by adding a large amount of plasticizer, due to migration of plasticizer, brings again the decline of this kind of material serviceability.Owing to there is the good compatibility with other macromolecular material, we can pass through CPE and SBS, PET blended, form CPE/SBS/PET co-mixing system, avoid CPE to need to add a large amount of plasticizer to obtain higher-strength and hardness.

Summary of the invention

It is an object of the invention to provide a kind of CPE/SBS/PET blended compound material and preparation method thereof, it is to avoid CPE needs to add a large amount of plasticizer to obtain higher-strength and hardness, thus improving the combination property of CPE material.

For reaching object above, the technical solution used in the present invention is as follows:

A kind of CPE/SBS/PET blended compound material, is made up of the raw material of following weight portion: CPE70-80, SBS20-30, modified PET 10-20, dibutyl phthalate 5-10, semi-reinforcing hydrocarbon black 20-30, activated Calcium carbonate 10-20, attapulgite modified 10-15, cumyl peroxide 5-8, APP 2-4, lead sulfate tribasic 2-3, magnesium oxide 2-3, zinc oxide 1-2, waste oil residue 10-20, Vulcanization accelerator TMTD 0.1-0.3, altax 0.5-1, age resistor ODA1-2, antioxidant 1681-2.

Described CPE chlorinty is 35-38%；Described SBS medium vinyl content is 76-78%；

Described modified PET is prepared by following method: weigh a certain amount of PET, TPU and modified Nano SiO₂, in 70-80 DEG C of vacuum drying oven, place 6-8h, dried rear PET, TPU and modified Nano SiO₂Putting into mix homogeneously in high-speed mixer by 3-4:1:0.2-0.3 weight ratio, then put into double screw extruder pelletize, extrusion temperature is 190-225 DEG C, and extruded material is at 140-150 DEG C of dry 6-8h, wherein, and described modified Nano SiO₂Following method prepares: to Nano-meter SiO_2₂Amino coupling agent A-1100, the mixed at high speed 1-2h at 80-85 DEG C of middle silane coupler KH-560 and the 1-2% adding 2-3%, dries, pulverizes.??

Described attapulgite modified prepared by following method: attapulgite being placed in 10-15% soak with hydrochloric acid 3-4 hour, deionized water wash is to neutral, then soaks 3-4 hour with 10-12% sodium hydroxide solution, then with deionized water wash to neutral, drying；It is subsequently adding the sodium tripolyphosphate being equivalent to attapulgite weight 2-3%, add the aluminium oxide of the sodium laurylsulfate of attapulgite weight 2-3%, the paregal O of 1-2%, the tributyl citrate of 2-3%, 3-5%, add appropriate deionized water, it is high-speed stirred 2-3h under 1200-1500r/min at rotating speed, obtain dispersion liquid, finally dispersion liquid is dried, pulverized to obtain powder.

The preparation method of described CPE/SBS/PET blended compound material, detailed process is as follows: first SBS, modified PET and age resistor ODA, antioxidant 168 are opened on twin-screw extruder at 50-60 DEG C refining, open refining 20-30min every time, 10-15h is parked after having refined, carry out out refining again, be so repeatedly performed 2-3 time.Then CPE, the surplus stock such as attapulgite modified are put into mixing 10-20min in high-speed mixer, again the material mixed is plasticated 8-10min with the above-mentioned SBS/PET glue refined of opening in twin-roll plastic mixing mill, in double; two roller mills, mixing pulling-on piece is carried out after taking-up, temperature is 160-170 DEG C, sheet thickness 1-2mm, roll on calender after pull-out, carry out sawing by required specification after taking out cooling, pack.

The rotating speed of described high-speed mixer is 1000-1200r/min；The rotating speed of described double; two roller mills is 50-60r/min.

CPE/SBS/PET blended compound material of the present invention has the ageing-resistant performance of CPE, ozone resistance, oil resistivity concurrently, the fatigue resistance of the lower temperature resistance of SBS, high resiliency, breathability and PET, weatherability, rub resistance, compared with pure CPE, CPE/SBS/PET blended compound material has following feature:

1. significantly improve resistance to ozone and the performance such as Weather-resistant, resistant of high or low temperature；

2. improve hot strength, stress at definite elongation, tear resistance, thermostability, flame resistance, fatigue resistance and rub resistance；

3. improve the performances such as oil resistant, resistance to fuel oil and chemical-resistant resistance；

4. improve extrusion, drawability, sizing material not easily autovulcanization, enhances bin stability simultaneously.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is described in further details.

Embodiment.

The preparation method of CPE/SBS/PET blended compound material, detailed process is as follows:

Take off the raw material of row weight portion: CPE70 part, SBS30 part, modified PET 15 parts, dibutyl phthalate 6 parts, semi-reinforcing hydrocarbon black 25 parts, activated Calcium carbonate 20 parts, attapulgite modified 15 parts, cumyl peroxide 6 parts, APP 3 parts, lead sulfate tribasic 2 parts, magnesium oxide 3 parts, zinc oxide 2 parts, waste oil residue 15 parts, Vulcanization accelerator TMTD 0.3 part, altax 0.8 part, age resistor ODA1.5 part, antioxidant 1682 parts.

Wherein, described CPE chlorinty is 35%；Described SBS medium vinyl content is 78%；Described modified PET is prepared by following method: weigh a certain amount of PET, TPU and modified Nano SiO₂, in 80 DEG C of vacuum drying ovens, place 8h, dried rear PET, TPU and modified Nano SiO₂Putting into mix homogeneously in high-speed mixer by 3:1:0.2 weight ratio, then put into double screw extruder pelletize, extrusion temperature is 205 DEG C, and extruded material is at 150 DEG C of dry 8h, wherein said modified Nano SiO₂Following method prepares: to Nano-meter SiO_2₂Amino coupling agent A-1100, the mixed at high speed 1-2h at 80-85 DEG C of middle silane coupler KH-560 and the 1-2% adding 2-3%, dries, pulverizes；

Described attapulgite modified prepared by following method: attapulgite being placed in 15% soak with hydrochloric acid 4 hours, deionized water wash is to neutral, then soaks 4 hours with 12% sodium hydroxide solution, then with deionized water wash to neutral, drying；It is subsequently adding the sodium tripolyphosphate being equivalent to attapulgite weight 3%, add the sodium laurylsulfate of attapulgite weight 3%, 2% paregal O, 3% tributyl citrate, 5% aluminium oxide, add appropriate deionized water, it is high-speed stirred 3h under 1400r/min at rotating speed, obtain dispersion liquid, finally dispersion liquid is dried, pulverized to obtain powder.

First SBS, modified PET and age resistor ODA, antioxidant 168 are opened refining at 60 DEG C on twin-screw extruder, open refining 30min every time, park 15h after having refined, then carry out out refining, be so repeatedly performed 3 times.Then CPE, the surplus stock such as attapulgite modified are put into mixing 20min in high-speed mixer, again the material mixed is plasticated 10min with the above-mentioned SBS/PET glue refined of opening in twin-roll plastic mixing mill, in double; two roller mills, mixing pulling-on piece is carried out after taking-up, temperature is 170 DEG C, sheet thickness 2mm, roll on calender after pull-out, carry out sawing by required specification after taking out cooling, pack.

The rotating speed of described high-speed mixer is 1200r/min；The rotating speed of described double; two roller mills is 60r/min.

Relevant physics, measuring mechanical property are as follows:

Hardness (shore) is 88 ° (A)；Elongation at break is 480%；Hot strength is 1423MPa；Mooney viscosity (ML₁₊₄, 100 DEG C) and it is 92；Tearing strength is 54kN/m.

Claims (1)

1. a CPE/SBS/PET blended compound material, it is characterized in that, be made up of the raw material of following weight portion: CPE70-80, SBS20-30, modified PET 10-20, dibutyl phthalate 5-10, semi-reinforcing hydrocarbon black 20-30, activated Calcium carbonate 10-20, attapulgite modified 10-15, cumyl peroxide 5-8, APP 2-4, lead sulfate tribasic 2-3, magnesium oxide 2-3, zinc oxide 1-2, waste oil residue 10-20, Vulcanization accelerator TMTD 0.1-0.3, altax 0.5-1, age resistor ODA1-2, antioxidant 1681-2；Described CPE chlorinty is 35-38%；Described SBS medium vinyl content is 76-78%；

Described modified PET is prepared by following method: weigh a certain amount of PET, TPU and modified Nano SiO₂, in 70-80 DEG C of vacuum drying oven, place 6-8h, dried rear PET, TPU and modified Nano SiO₂Putting into mix homogeneously in high-speed mixer by 3-4:1:0.2-0.3 weight ratio, then put into double screw extruder pelletize, extrusion temperature is 190-225 DEG C, and extruded material is at 140-150 DEG C of dry 6-8h, wherein, and described modified Nano SiO₂Following method prepares: to Nano-meter SiO_2₂Amino coupling agent A-1100, the mixed at high speed 1-2h at 80-85 DEG C of middle silane coupler KH-560 and the 1-2% adding 2-3%, dries, pulverizes；

Described attapulgite modified prepared by following method: attapulgite being placed in 10-15% soak with hydrochloric acid 3-4 hour, deionized water wash is to neutral, then soaks 3-4 hour with 10-12% sodium hydroxide solution, then with deionized water wash to neutral, drying；It is subsequently adding the sodium tripolyphosphate being equivalent to attapulgite weight 2-3%, add the aluminium oxide of the sodium laurylsulfate of attapulgite weight 2-3%, the paregal O of 1-2%, the tributyl citrate of 2-3%, 3-5%, add appropriate deionized water, it is high-speed stirred 2-3h under 1200-1500r/min at rotating speed, obtain dispersion liquid, finally dispersion liquid is dried, pulverized to obtain powder；

The detailed process of the preparation method of described CPE/SBS/PET blended compound material is as follows: first SBS, modified PET and age resistor ODA, antioxidant 168 are opened on twin-screw extruder at 50-60 DEG C refining, open refining 20-30min every time, 10-15h is parked after having refined, carry out out refining again, be so repeatedly performed 2-3 time；Then CPE, the surplus stock such as attapulgite modified are put into mixing 10-20min in high-speed mixer, again the material mixed is plasticated 8-10min with the above-mentioned SBS/PET glue refined of opening in twin-roll plastic mixing mill, in double; two roller mills, mixing pulling-on piece is carried out after taking-up, temperature is 160-170 DEG C, sheet thickness 1-2mm, roll on calender after pull-out, carry out sawing by required specification after taking out cooling, pack；

The rotating speed of described high-speed mixer is 1000-1200r/min；The rotating speed of described double; two roller mills is 50-60r/min.