Special N-phthalate reinforced soft polyethylene plastics for circulation loop and preparation method thereof

A soft polyvinyl chloride, recycling loop technology

Inactive Publication Date: 2010-08-11
YANGZHOU KAIER CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the complex structure of the circulation loop, high processing precision requirements, long processing time and high temperature, the soft PVC plastic plasticized by traditional single-screw machines has a small secondary plasticization operation space, so for The mechanical and other aspects of subsequent processing are relatively high, resulting in a high rate of defective products in production, which increases production costs
And it often reduces the thermal stability of the finished product, making it impossible to complete radiation disinfection

Method used

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  • Special N-phthalate reinforced soft polyethylene plastics for circulation loop and preparation method thereof
  • Special N-phthalate reinforced soft polyethylene plastics for circulation loop and preparation method thereof
  • Special N-phthalate reinforced soft polyethylene plastics for circulation loop and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A special non-phthalic plasticized soft polyvinyl chloride plastic for circulation circuit, which includes the following components in parts by weight:

[0027] PVC resin powder 100 parts by weight ATBC 20 parts by weight

[0028] Epoxidized soybean oil 5 parts by weight Calcium-zinc compound salt 0.5 parts by weight

[0029] 0.1 parts by weight of phenylmethyl silicone oil, 0.1 parts by weight of butyl hyperglycinol (BHA)

[0030] A kind of preparation method of non-orthophthalic plasticized soft polyvinyl chloride plastics special for circulation circuit, the specific steps of the method are as follows:

[0031] 1) With 100 parts by weight of PVC resin powder, 20 parts by weight of ATBC, 5 parts by weight of epoxy soybean oil, 0.5 parts by weight of calcium-zinc compound salt, 0.1 part by weight of benzyl silicone oil, butyl hysteryl fungal ether (BHA) 0.1 parts by weight, mix at a low speed of 100r / min for 6 minutes, then mix at a high speed of 500r / min for 6 minut...

Embodiment 2

[0035] A special non-phthalic plasticized soft polyvinyl chloride plastic for circulation circuit, which includes the following components in parts by weight:

[0036] PVC resin powder 100 parts by weight DOA 35 parts by weight

[0037] Epoxy tall oil 20 parts by weight Tin-zinc 3 parts by weight

[0038] Stearyl alcohol 1 weight part Propyl gallate (PG) 0.6 weight part

[0039] A kind of preparation method of non-orthophthalic plasticized soft polyvinyl chloride plastics special for circulation circuit, the specific steps of the method are as follows:

[0040] 1) 100 parts by weight of PVC resin powder, 35 parts by weight of DOA, 20 parts by weight of epoxy tallow oil, 3 parts by weight of tin-zinc, 1 part by weight of stearyl alcohol, 0.6 parts by weight of propyl gallate (PG) , first mix at low speed 100r / min for 6 minutes, then mix at high speed 500r / min for 6 minutes, discharge and cool;

[0041] 2) Cool the raw materials to 80°C, add them into the hopper of a twin-scr...

Embodiment 3

[0044] The invention provides a special non-orthophthalic plasticized soft polyvinyl chloride plastic for a circulation loop, which comprises the following components in parts by weight:

[0045] PVC resin powder 100 parts by weight DOTP 50 parts by weight

[0046] Epoxy monoglyceride 35 parts by weight Tin-calcium 5.0 parts by weight

[0047] Ethylene glycol distearate 2.0 parts by weight Vitamin E (VE) 1.0 parts by weight

[0048] A kind of preparation method of non-orthophthalic plasticized soft polyvinyl chloride plastics special for circulation circuit, the specific steps of the method are as follows:

[0049] 1) 100 parts by weight of PVC resin powder, 50 parts by weight of DOTP, 35 parts by weight of epoxy monoglyceride, 5.0 parts by weight of tin-calcium, 2.0 parts by weight of ethylene glycol distearate, 1.0 parts by weight of vitamin E (VE) For each part, first mix at a low speed of 100r / min for 6 minutes, then mix at a high speed of 500r / min for 6 minutes, discharge...

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Abstract

The invention discloses special N-phthalate reinforced soft polyethylene plastics for a circulation loop, which comprises the following ingredients by weight parts: 100 weight parts of PVC resin powder, 20 to 50 weight parts of N-phthalate plasticizers, 5 to 35 weight parts of auxiliary stabilizing agents, 0.5 to 5.0 weight parts of stabilizing agents, 0.1 to 2.0 weight parts of lubricating agents and 0.1 to 1.0 weight part of antioxidants. The invention also discloses a preparation method of the special N-phthalate reinforced soft polyethylene plastics for the circulation loop. The method comprises the following steps: carrying out high-speed mixing on ingredients; using a double-screw extruding machine for plastification; and using a single screw for cooling and forming to obtain rubber grains. The recipe of the invention is suitable for the manufacture of the circulation loop, particularly the varieties with high processing precision and long operation time and the varieties needing ray sterilization.

Description

technical field [0001] The invention relates to a medical polymer material and a preparation method thereof, in particular to an improved non-phthalic plasticized soft polyvinyl chloride plastic specially used for an improved circulation loop and a preparation method thereof. Background technique [0002] PVC has many advantages such as high strength and modulus, softness, good resilience, transparency and low price, so it is the main material for making disposable medical infusion devices. Plasticized soft PVC has been widely used in the production of infusion sets, blood bags, catheters, respiratory masks, enteral nutrition tubes, peritoneal dialysis bags, extracorporeal circulation lines, membrane oxygenators, hemodialysis lines and various Disposable medical infusion devices such as medical catheters. The inherent properties such as hardness and flexibility of pure PVC materials can be improved by adding plasticizers. Various plasticizers can be used to soften PVC, how...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/11C08K5/12
Inventor 夏小乐夏袖民张增英
Owner YANGZHOU KAIER CHEM
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