Tubular product for effectively reducing condensate water of breathing pipeline
A technology for condensing water pipes and breathing pipes, applied in the field of medical materials, can solve the problems of insufficient tensile strength and elongation at break, causing ventilator-related pneumonia, hidden safety hazards of hospital patients, etc., and achieve excellent tensile strength and elongation at break. Long rate, beneficial to large-scale industrial production, simple and convenient foaming process
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[0076] In a preferred embodiment, the preparation method of the modified silicone oil comprises the following steps:
[0077] Step a: In parts by weight, disperse 0.05-0.1 parts of dispersant, 25-35 parts of deionized water and 150-250 parts of solvent at a stirring speed of 20-30 r / min for 10-20 minutes to obtain mixture A;
[0078] Step b: Add 10-15 parts of alkoxysilane and 20-25 parts of silicone oil into the mixture A obtained in step a, and disperse at a stirring speed of 80-120 r / min for 1-3 hours to obtain a mixture B;
[0079] Step c: Add the platinum catalyst dropwise to the mixture B obtained in step b, mix well and react fully to obtain the modified silicone oil.
[0080] In a preferred embodiment, the preparation method of the modified silicone oil comprises the following steps:
[0081] Step a: In parts by weight, disperse 0.08 parts of dispersant, 30 parts of deionized water and 196 parts of solvent at a stirring speed of 25 r / min for 15 minutes to obtain mixtu...
Embodiment 1
[0115] Embodiment 1 of the present invention provides a pipe material that can effectively reduce condensed water in breathing tubes, including the following raw materials in parts by weight: 95 parts of thermoplastic material, 1.5 parts of microsphere foaming agent, and 3.5 parts of silicone oil.
[0116] The thermoplastic material is a mixture of LDPE material and EVA material, and its weight ratio is 1:0.31; the melt index of the LDPE material at 230°C and 2.16kg is 5.0g / 10min, and the grade is F410-7; the EVA The melt index of the material at 200°C and 5kg is 1.5g / 10min, the content of VAC is 16wt%, and the grade is 630. The microsphere foaming agent has a particle size of 17.5 μm, a foaming temperature of 165° C., and a brand name of FARIDA TEP-158. The silicone oil is a mixture of modified silicone oil and methyl silicone oil, and its weight ratio is 1:1.5; the viscosity of the methyl silicone oil at 25°C is 350cst, purchased from Foshan Hongsi Chemical Co., Ltd., model ...
Embodiment 2
[0125] Embodiment 2 of the present invention provides a pipe material that can effectively reduce condensed water in the breathing pipeline, including the following raw materials in parts by weight: 93 parts of thermoplastic material, 1 part of microsphere foaming agent, and 2 parts of silicone oil.
[0126] The thermoplastic material is a mixture of LDPE material and EVA material, and its weight ratio is 1:0.1; the melt index of the LDPE material at 230°C and 2.16kg is 5.0g / 10min, and the grade is F410-7; the EVA material The melt index of the material at 200°C and 5kg is 1.5g / 10min, the content of VAC is 16wt%, and the grade is 630. The microsphere foaming agent has a particle size of 17.5 μm, a foaming temperature of 130° C., and a brand name of FARIDA TEP-158. The silicone oil is a mixture of modified silicone oil and methyl silicone oil, and its weight ratio is 1:1; the viscosity of the methyl silicone oil at 25°C is 340cst, purchased from Foshan Hongsi Chemical Co., Ltd....
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