CN104163949A - Formula of composite latex medical tourniquet material - Google Patents

Abstract

The invention relates to a formula of a composite latex medical tourniquet material. The material comprises the following components (by weight): 3 parts of latex; and 2 parts of an auxiliary material. Specifically, the auxiliary material is composed of the following components: 27 parts of white carbon black; 45 parts of light calcium carbonate; 3 parts of an anti-aging agent SP-C; 2 parts of an antioxidant 264; 5 parts of titanium dioxide; 2 parts of paraffin; 2 parts of stearic acid; 5 parts of zinc oxide; 5 parts of sulfur; 2 parts of mesitylene; and 2 parts of dimethylaminoethyl methacrylate DM. The formula provided by the invention can be employed for preparation of tourniquet latex, and under the premise of keeping a constant vulcanizing temperature and constant physical parameter performance, the vulcanizing time can be greatly reduced, and the production benefits can be improved.

Description

A kind of composite emulsion medical tourniquet material prescription

Technical field

The invention belongs to chemical technology field, particularly a kind of composite emulsion medical tourniquet material prescription.

Background technology

Latex has excellent technological operation and physicals, as high in wet gel strength, elasticity is large, creep is little etc., and with regard to its versatility, there is no at present other material can substitute.Latex product is had many uses at medical field, comprises medical latex glove, latex tourniquet etc.But traditional medical latex formula, general curing time is longer, as shortened curing time or curing temperature, can reduce again the physical performance index of product.

Summary of the invention

For reducing latex production cost, the invention provides one can fast-curing composite emulsion medical tourniquet material prescription.

The technical scheme that the present invention takes is:

A kind of composite emulsion medical tourniquet material prescription, comprises following component (calculating by weight):

3 parts of latexes; 2 parts of auxiliary materials, wherein, described auxiliary material is made up of following component:

27 parts of White Carbon blacks;

45 parts of light calcium carbonates;

3 parts of antioxidant SP-C;

2 parts of antioxidant 264s;

5 parts of titanium dioxides;

2 parts of paraffin waxes;

2 parts of stearic acid;

5 parts, zinc oxide;

5 parts of Sulfurs;

2 parts of sym-trimethylbenzene;

2 parts of dimethylaminoethyl methacrylate DM.

Preferably scheme is, described latex is the mixture of polyisoprene rubber, natural emulsion and emulsion polymerized styrene butadiene rubber, and the ratio of aforementioned three kinds of latexes is: 7:30:23.

Use this formula to carry out the preparation of tourniquet latex, keeping, curing temperature is constant, under the constant prerequisite of physical parameter performance, greatly reduces curing time, improves productivity effect.

Embodiment

First select 7KG polyisoprene rubber, the poly-styrene-butadiene rubber(SBR) of 30 kilograms of newborn natural emulsions and 23KG, puts into the sulfuration cylinder of a capacity more than 70KG, is heated to 80 degree.40 kilograms of auxiliary materials are put into another container, wherein comprise:

10.4 kilograms of White Carbon blacks;

18 kilograms of light calcium carbonates;

1.2 kilograms of antioxidant SP-C;

0.8 kilogram of antioxidant 264;

2 kilograms of titanium dioxides;

0.4 kilogram of paraffin wax;

0.8 kilogram of stearic acid;

2 kilograms, zinc oxide;

2 kilograms of Sulfurs;

0.8 kilogram of sym-trimethylbenzene;

0.8 kilogram of dimethylaminoethyl methacrylate DM.

The aforementioned hot latex mixture of 2 kilograms of left and right is joined in auxiliary material, with a small wooden stirring,, thawing drenched to aforementioned auxiliary material.Again it is all poured in sulfuration cylinder, be stirred to evenly.Then at sulfuration cylinder body external heat, control latex in sulfuration cylinder and, between 70-90 degree, keep 1 hour.Then be cooled to natural temperature, can obtain latex.

Use this formula to carry out the preparation of tourniquet latex, keeping under the prerequisite that curing temperature is constant, curing time reduced to 150 seconds from original 300 seconds, and physical function parameter does not only decline and promotes to some extent on the contrary, rises to 500% by 400% of original elongation.Tensile strength has original 9.8MPA, rises to 14MPA, and productivity effect promotes 50%.

Above-described embodiment is a typical embodiment, and above-described embodiment is not used in and limits the scope of the invention.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from marrow of the present invention or surmount the defined scope of appended claims.

Claims (2)

1. a composite emulsion medical tourniquet material prescription, comprises following component (calculating by weight):

3 parts of latexes; 2 parts of auxiliary materials, wherein, described auxiliary material is made up of following component:

27 parts of White Carbon blacks;

45 parts of light calcium carbonates;

3 parts of antioxidant SP-C;

2 parts of antioxidant 264s;

5 parts of titanium dioxides;

2 parts of paraffin waxes;

2 parts of stearic acid;

5 parts, zinc oxide;

5 parts of Sulfurs;

2 parts of sym-trimethylbenzene;

2 parts of dimethylaminoethyl methacrylate DM.

2. a kind of composite emulsion medical tourniquet material prescription as claimed in claim 1, is characterized in that, described latex is the mixture of polyisoprene rubber, emulsion polymerized styrene butadiene rubber and natural emulsion, and the ratio of aforementioned three kinds of latexes is: 7:30:23.