Rendani Luvhengo

9 Questions 14 Answers 0 Followers

Questions related from Rendani Luvhengo

How do I determine the amount of free butadiene and styerene from in process styrene-butadiene latex?

i am trying to find outh the simplest and accurate method of determing the amount of free/residual 1.3-butadiene and styrene from in process latex/polymerization. my challenge is to accurately...

04 April 2015 588 3 View

Any idea what I can do with unvulucanized emulsion-SB rubber waste resulted from auto-coagulation of latex during SBR manufacturing?

We specialize in emulsion SBR manufacturing, in the storage tanks we sometimes experience latex auto-coagulation that forms rubber gel, and as a result we have to dump these gel crumbs. Any idea...

01 January 2015 3,358 9 View

How does a 1,3- butadiene get converted to cis-2 butene during styrene-butadiene free radical cold emulsion polymerization?

We specialize in a styrene-butadiene emulsion polymerization, we run conversion to 60% and we recover the unconverted (1,3- butadiene) at a purity of average of 73% and major impurity is (cis-2...

01 January 2015 8,635 4 View

What is the effect of 4-vinylcyclohexene on the degradation of polystyrene and on the polymerisation of styrene?

Does anyone have the literature explaining the effect of 4-vinylcyclohexene on the degradation of polystyrene and on the polymerisation of styrene?

12 December 2014 879 0 View

What promotes the dimerization of 1.3-butadiene during redox emulsion polymerization?

we specialise in cold polymerization of styrene and butadiene, and we are loosing butadine during polymerization in dimerization to (4 -vinylcyclohexene) about 8% is found during GC analysis i...

12 December 2014 5,143 5 View

How can I optimize 1.3 butadiene purity from emulsion polymerization?

we specialize in styrene-butadiene emulsion polymerization, we run conversion to 60%, and we recover the unconverted (1.3 butadiene) at a purity of average of 73% and major impurity is (cis-2...

12 December 2014 2,662 1 View

If sulphuric acid is replaced by an organic acid as coagulating agent for SBR, which organic acid will be best suitable for coagulation?

i would like to change from sulphuric acid to organic acid as coagulating agent for SBR, and i would like to know the advantages and disadvantages with regard to this change

11 November 2014 4,590 1 View

How can I improve the colour of emulsion SB rubber(1502)?

i am having a problem with color of sb rubber (1502) having a yellowish/brownish color, i would like it to be as white as possible, reciep used: soap-fatty acid and SA40...

11 November 2014 5,442 6 View

How can I improve batch steam stripping of styrene butadiene emulsion polymerization?

I would like to improve the stripping of styrene from an emulsion batch(Semi-continuous batch process). We transfer batch from reactor to stripper and inject direct/live steam at stripper bottom...

11 November 2014 2,482 12 View