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Flexible vinyl in use for peristaltic

A polyvinyl chloride and peristaltic pump technology, applied in the direction of hoses, pipes, pipes/pipe joints/fittings, etc., can solve the problems of expensive silicone rubber and high cost of peristaltic pump tubes, and improve long-term thermal stability and weather resistance performance, good elasticity and flexibility, reduced compression set effect

Inactive Publication Date: 2006-02-01
威海威高创新有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the hose is mainly made of silicone rubber, but because of the high price of silicone rubber, the cost of the peristaltic pump tube made of it is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Ingredients Amount (parts by weight)

[0020] Polyvinyl chloride resin (PVC) 100

[0021] Dioctyl phthalate (DOP) 25~35

[0022] Dioctyl adipate (DOA) 20~25

[0023] Diisononyl phthalate (DINP) 25~30

[0024] Epoxidized soybean oil (ESO) 3~5

[0025] Organic phosphite (602) 0.8~1

[0026] Calcium stearate 0.3~0.5

[0027] Zinc stearate 0.1~0.3

[0028] Aluminum stearate 0.1~0.2

[0029] Silicone oil 0.1~0.3

[0030] The raw materials used in this formula are produced according to the normal production steps after being measured, and then made into pellets, which can be further processed into the required hose according to the normal molding processing conditions. The obtained product is soft and transparent, has good thermal stability and low temperature resistance. According to the regulations of GB14232-93, the product is qualified after being sterilized by ethylene oxide.

[0031] Its physical and chemical properties of the peristaltic pump tube made from t...

Embodiment 2

[0036] Ingredients Amount (parts by weight)

[0037] Polyvinyl chloride resin (PVC) 100

[0038] Dioctyl phthalate (DOP) 25~35

[0039] Dioctyl adipate (DOA) 20~25

[0040] Diisononyl phthalate (DINP) 25~30

[0041] Epoxidized soybean oil (ESO) 5~10

[0042] Organic phosphite (CH55) 0.5~0.8

[0043] Calcium zinc composite stabilizer (CZ11) 1~2

[0044] Silicone oil 0.1~0.3

[0045] The characteristics of this formula are basically the same as above, because the stabilizer system uses CH55 instead of 602, and the calcium-zinc composite stabilizer replaces stearate (calcium stearate, zinc and aluminum), the safety of the formula is better, and the thermal stability is also higher. higher. Its molding processability is the same as that of Example 1.

Embodiment 3

[0047] Ingredients Amount (parts by weight)

[0048] Polyvinyl chloride resin (PVC) 100

[0049] Dioctyl phthalate (DOP) 50~60

[0050] Dioctyl adipate (DOA) 20~25

[0051] Epoxidized soybean oil (ESO) 5~10

[0052] Organic phosphite (CH55) 0.5~0.8

[0053] Calcium zinc composite stabilizer (CZ11) 1~2

[0054] Silicone oil 0.1~0.3

[0055] The characteristics of this formula are basically the same as above, and its characteristic is that in the case of not using DINP, the dosage of DOP is increased appropriately, and the product that meets the requirements of use can also be obtained.

[0056] The optimal formulation of the patented peristaltic pump tubing material of the present invention is the formulation of Example 1.

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Abstract

A soft polyvinyl chloride plastics for the tube of creeping pump is prepared from PVC resin, dioctyl phthalate (DOP), dioctyl adipate (DOA), diisononyl phthalate (DINP), epoxy soybean (or flaxseed) oil, stearate, organic phosphite and silicon oil. Its advantages are high elasticity, flexibility and stability.

Description

technical field [0001] The invention relates to a polymer material, in particular to an improved soft polyvinyl chloride plastic for peristaltic pump tubes. Background technique [0002] We know that we know that the peristaltic pump realizes the flow of liquid in the tube by squeezing the hose. Therefore, high elasticity and flexibility are required for the hose used. In the prior art, the hose is mainly made of silicon rubber, but because the price of silicon rubber is expensive, the cost of the peristaltic pump tube made of it is relatively high. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a soft polyvinyl chloride plastic for peristaltic pump tubes with reasonable formula, stable performance, good elasticity and flexibility, simple process and low cost. The resulting product is suitable for installation in a blood cell separator for the sepa...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/524F16L11/04
Inventor 李忠志于术英刘岭
Owner 威海威高创新有限公司
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