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Polyolefin elastomer for peristaltic pumps and preparation method thereof

A polyolefin elastomer and peristaltic pump technology, applied in the field of polyolefin elastomer blending, can solve problems such as endangering health, aggravating patient pain, increasing patient dialysis time, etc., to reduce patient pain, improve deformation recovery ability and resistance. Grinding performance, effect of low flow relative deviation rate

Inactive Publication Date: 2018-05-08
深圳恒方大高分子材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most peristaltic pump tubes are made of polyvinyl chloride (PVC) pump tubes. In order to obtain high-elastic pump tubes, PVC must be added with plasticizers (such as DEHP) during processing. However, plasticizers may be separated out. Possibility, harmful to human health, while PVC material peristaltic pump tube can meet the "YY 0267-2008 cardiovascular implants and artificial organs - hemodialyzer, hemodialysis filter and extracorporeal circulation blood circuit of hemofilter" The flow rate requirement of the pump tube (the relative deviation of the flow rate after 10 minutes does not exceed 10%). In practice, the time for a hemodialysis is about 4 hours. At this time, the relative flow rate deviation of the PVC material peristaltic pump tube often exceeds 10%. Increase the patient's dialysis time, further aggravating the patient's suffering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of polyolefin elastomer for peristaltic pump pipe, its raw material formula (mass part) is:

[0020] Styrenic elastomer SBS: 20 parts;

[0021] Olefin block copolymer OBCs: 80 parts;

[0022] Composite antioxidant: 0.3 parts;

[0023] Oleic acid amide: 0.3 parts.

[0024] A preparation method of polyolefin elastomer for peristaltic pump tubes, the method steps are as follows: each component is prepared according to the mass parts of each component, and after the preparation is prepared, the composite antioxidant, oleic acid amide and SBS are mixed at a high speed Mix in the machine, then add OBCs, mix for 7 minutes, then put it into a twin-screw extruder and extrude and granulate with air cooling in the temperature range of 150-170°C to obtain the polyolefin elastomer material for peristaltic pump tubes.

Embodiment 2

[0026] A kind of polyolefin elastomer for peristaltic pump pipe, its raw material formula (mass part) is:

[0027] Styrene elastomer SEBS: 40 parts;

[0028] Olefin block copolymer OBCs: 60 parts;

[0029] Composite antioxidant: 0.2 parts;

[0030] Erucamide: 0.5 parts.

[0031] A preparation method of polyolefin elastomer for peristaltic pump tubes, the method steps are as follows: each component is prepared according to the mass parts of each component, and after the preparation is prepared, the composite antioxidant, erucamide and SEBS are mixed at a high speed Mix in the machine, then add OBCs, mix for 5 minutes, then put it into a twin-screw extruder and extrude and granulate with air cooling in the temperature range of 150-170°C to obtain the polyolefin elastomer material for peristaltic pump tubes.

Embodiment 3

[0033] A kind of polyolefin elastomer for peristaltic pump pipe, its raw material formula (mass part) is:

[0034] Styrenic elastomer SIS: 25 parts;

[0035] Olefin block copolymer OBCs: 75 parts;

[0036] Composite antioxidant: 0.4 parts;

[0037] Oleic acid amide: 0.2 part;

[0038] Erucamide: 0.3 parts.

[0039] A preparation method of polyolefin elastomer for peristaltic pump tubes, the method steps are as follows: each component is prepared according to the mass parts of each component, and after the preparation is prepared, composite antioxidant, oleic acid amide, erucamide and SIS Put it into a high-speed mixer for mixing, then add OBCs, mix for 10 minutes, and then put it into a twin-screw extruder to extrude and granulate with air cooling in the temperature range of 150-170°C to obtain a polyolefin elastomer material for peristaltic pump tubes .

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Abstract

The invention discloses a polyolefin elastomer for peristaltic pump pipes and a preparation method thereof. The polyolefin elastomer is prepared from, by weight, 20-40 parts of styrene elastomer, 60-80 parts of olefin block copolymer, 0.2-0.5 part of complex antioxidant and 0.3-0.5 part of lubricant, wherein the styrene elastomer is styrene-butadiene-styrene block polymer or hydrogenated styrene-butadiene-styrene polymer or styrene-isoprene-styrene block polymer. Compared with polyvinyl chloride peristaltic pump pipes widely used at present, the polyolefin elastomer has the advantages of no toxicity, low drug adsorption, excellent creep resistance, wear resistance and deformation recovery capacity and the like. The polyolefin elastomer for peristaltic pump pipes has superhigh resilience, and thus the relative flow deviation of pump pipes made of the polyolefin elastomer is smaller than 6% in 4 h.

Description

technical field [0001] The invention relates to the field of polyolefin elastomer blending, in particular to a polyolefin elastomer for peristaltic pump tubes and a preparation method thereof. Background technique [0002] The peristaltic pump achieves the quantitative flow of liquid in the tube by squeezing the pump tube. Therefore, the peristaltic pump tubes used are required to have high resilience, creep resistance and wear resistance. [0003] At present, most peristaltic pump tubes are made of polyvinyl chloride (PVC) pump tubes. In order to obtain high-elastic pump tubes, PVC must be added with plasticizers (such as DEHP) during processing. However, plasticizers may be separated out. Possibility, harmful to human health, while PVC material peristaltic pump tube can meet the "YY 0267-2008 cardiovascular implants and artificial organs - hemodialyzer, hemodialysis filter and extracorporeal circulation blood circuit of hemofilter" The flow rate requirement of the pump t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L53/02C08K5/134C08K5/526C08K5/20
CPCC08L53/00C08L2203/18C08L2205/02C08L2205/03C08L53/02C08K5/1345C08K5/526C08K5/20C08L53/025
Inventor 沈蕾徐龙平
Owner 深圳恒方大高分子材料科技有限公司
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