silicone presentation
DESCRIPTION
Konowledge giving information on different types of silicones available for fabric finishingTRANSCRIPT
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AminosiloxanesDiamineMonoamineReactive
Alkyl/Alkoxy terminatedHydroxy terminated
Non-reactiveAmido aminosiloxanesSilicone quatsPolyetherfunctional siloxanesEpoxy functionalHindered Secondary Amine
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Si O
CH3
CH3
Si
CH3
O Si
CH3
CH3
O Si
CH3
CH3
O Si
CH3
CH3
nm
NH2
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HN
NH2
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Best degree of softness Higher the amine content
Unfortunately it also due to oxidation of this amine that one generates the undesirable yellowing of the textiles in application & so the search for the
compromise between softness & yellowing continues. It is true that today there are certain products on the market which are pitched at various points along this line of compromise; in general,
More soft – More yellowingLess soft – Less yellowing
Textile treated with conventional di-amino functional silicone-emulsion show two big disadvantages:
Yellowing at higher temperature andHydrophobic effects.
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NH2
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Here the anti yellowing mechanism i.e. ultra low yellowing mechanism is due to its “LOW AMINE VALUE” of mono-amino functional silicone.
Lower the amine value lesser the yellowing.
Being a mono amine it gives ultra low yellowing in comparison to di-amine.
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Alkyl/Alkoxy terminatedThese reactive silicone emulsions functions as a basic component in a silicone elastomer system alongwith silanic hydrogen as cross linking catalyst and organo metallic compound as condensation catalyst. Thus reactive PDMS can undergo chain extension / polymerisation to form highly elastic macro molecules with extensively crosslinked structure; forming a coherent film round the fiber and increasing elasticity.In addition these elastomers are characterized by :Strong durability to washing and dry cleaning &Enhanced resilience. A very pleasant soft handle & excellent spring back effect and bounce.
Alkyl/Alkoxy terminated contdImproved dimensional stability & improved wash and wear ratings with greatly enhanced wet and dry crease resistance. Improved sewability.These features are especially beneficial for knit goods to improve elastic recovery (stretch recovery); to improve shape retention and to reduce bagging during wear. Furthermore Reactive PDMS are used as resin extenders and confer permanent lustrous effects and bulk elasticity to filling fibers. They are used in finishing of jeans in pigment printing and allow special effects to be obtained in the elastomeric finishing of fiber fill, knits, garments and machine washable wool.
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Hydroxy/Methoxy terminatedSmooth, full handGood dimensional stability/flat appearance after washImproves flex abrasion & tear strengthForms elastomeric film, excellent resiliency, inherent flexibilityExcellent cutting & sewing characteristicsHigher crease resistance. Improves pile and crush resistance. Improves durable press performance
O-RR-O
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These are chemically inert trimethyl silyl terminated poly dimethyl siloxanes. These silicone oils are used as is, or in form of aqueous emulsions; neat or in blends with organic softeners, petroleum oils, waxes to produce : Textile softening agents which give specific soft & supple handle with good sew ability, cutting and abrasion resistance in wash and wear finish.Raising and napping agents especially for synthetics.Sewing thread lubricants to improve gliding properties of sewing threads and their resistance to heat (heat shield effect). To reduce friction and ensure rapid dissipation of heat resulting in fewer thread breakages.Yarn lubricants with high heat stability.Antifoams and defoamers to eliminate space rubbing foam.Pigment print additives for improving crack fastness and depth of shade.
Amino SiloxanesNon Reactive
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Si O
CH3
H3C
CH3
Si
CH3
O Si
CH3
NH
O Si
CH3
CH3
O Si
CH3
CH3
CH3
n
m
NH2
C
O
R
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Very Low Yellowing
Very Good Softness
Less Hydrophobic than
Conventional Amino silicones
Especially Effective on Poly-
cotton Fabrics
Micro emulsifiable
Exhaustible/Shear Stable
NH C
O
R
N Z
CH3
R
CH3
Si
CH3
CH3
O Si
CH3
CH3
O Si
CH3
CH3
Z N
CH3
CH3
R
n
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++
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Excellent softness, exhaustible, durable
Very good hydrophilicity : Rewettability for
optimised results in sanforizing process
Very low yellowing
High level process security
Shear stable
Resistence to alkalis: For mercerised textiles,
without an increased risk of stains
Temperature resistence : Makes continuous
finishing processes secure
N
CH3
CH3
R
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Si O
CH3
H3C
CH3
Si
CH3
(CH2)3
O Si
CH3
O Si
CH3
CH3
O Si
CH3
CH3
CH3
nm
O
CH3
(C2H4O)x (C3H6O)yH
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Enchanced hydrophilicity
Water Dispersible
Non-yellowing
Semi Durable
Imparts lubricity and moderate softness
Excellent compatibility with finishing bath
Shear Stable
Improves physical strength
Improved Soil Release
O (C2H4O)x (C3H6O)yH
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Reactive, Full, natural , bouncy handle
Non-yellowing
Good stretch & recovery, Good elasticity &
resiliency, Improves wrinkle recovery
Self Crosslinkable, increases durability
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[C 2]2
[CH2] 2
O
NH
N
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Primarily it is due to the fact as a highly hindered,
2º - amine, the possibility of oxidation of the amine
is greatly reduced so that high energy levels would
be required to destabilize the chemical structure &
cause undesirable yellowing. Further more the
electron lone pair on the nitrogen has its charge
well distributed within the cyclic structure to which
it is attached.
Secondarily the hindered amines of this type also
have free radical scavenging properties, which
prevent oxidation & subsequent yellowing via this
mechanism
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Product Name Type Amine Value(mgKOH/gm)
Refractive Index Viscosity in cps
Modfluid-KL-1 Reactive Diamine
18 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-6 Reactive Diamine
24 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-8 Reactive Diamine
30 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-20 ReactiveDiamine
20 ± 2 1.403 - 1.409 500-1500
Modfluid-KL-75 ReactiveMonoamine
60 ± 2 1.408 - 1.414 25 - 100
Modfluid-KL-100 Reactive Diamine
100 ± 2 1.403 - 1.409 500 - 2000
Modfluid-KL-401-EM ReactiveDiamine
21 ± 2 1.403 - 1.409 1000-2500
Modfluid-KL-909 ReactiveDiamine
9 ± 1 1.403 - 1.409 6,000 - 14,000
Modfluid-KL-1003 ReactiveDiamine
16 ± 2 1.403 - 1.409 500 – 3000
Modfluid-KL-1016 Amido 16 ± 2 1.405 - 1.410 800-2000
Modfluid-KL-1025 ReactiveDiamine
25 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-1030 Non-ReactiveDiamine
30 ± 2 1.403 - 1.409 100 – 200
Modfluid-KL-1035 ReactiveDiamine
27 ± 2 1.403 - 1.409 5000 - 10000
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Product Name Type Amine Value(mgKOH/gm)
Refractive Index Viscosity in cps
Modfluid-KL-1100 ReactiveDiamine
11 ± 2 1.403 - 1.409 3000 - 8000
Modfluid-KL-1500 ES Reactive Diamine
14 ± 2 1.403 - 1.409 1000 - 6000
Modfluid-KL-21637 Reactive Diamine
16 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-2500-T Reactive Triamine
25 ± 2 1.403 - 1.409 500 - 2500
Modfluid-KL-3803 ReactiveDiamine
18 ± 2 1.403 - 1.409 1400-2500
Modfluid-KL-4910 ReactiveDiamine
21 ± 2 1.403 - 1.409 800-1200
Modfluid-KL-5015 Reactive Diamine
15 ± 2 1.403 - 1.409 3000 - 8000
Modfluid-KL-7027 ReactiveDiamine
27 ± 2 1.403 - 1.409 7000-10000
Modfluid-KL-8004 ReactiveDiamine
15± 2 1.403 - 1.409 500-3500
Modfluid-KL-8014 ReactiveDiamine
10 ± 1 1.403 - 1.409 500 - 2500
Modfluid-KL-8251 Reactive Diamine
28 ± 2 1.403 - 1.409 500 - 1500
Modfluid-KL-8282 Reactive Diamine
25 ± 2 1.403 - 1.409 500 - 2000
Modfluid-KL-8290 ReactiveDiamine
28 ± 2 1.403 - 1.409 800 - 2000
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Product Name Type Amine Value(mgKOH/gm)
Refractive Index Viscosity in cps
Modfluid-KL-8406 ReactiveDiamine
32 ± 2 1.403 - 1.409 500-1500
Modfluid-KL-8417 ReactiveDiamine
32 ± 2 1.405 - 1.410 800 - 1500
Modfluid-KL-8445 ReactiveDiamine
45 ± 2 1.403 – 1.409 500 - 1500
Modfluid-KL-8468 ReactiveDiamine
22 ± 2 1.403 - 1.409 500-1200
Modfluid-KL-8603 ReactiveMonoamine
16 ± 2 1.403 - 1.409 500 - 3500
Modfluid-4730 ReactiveDiamine
35 ± 2 1.403 - 1.409 800 - 1300
Modfluid-4780 ReactiveDiamine
20 ± 2 1.403 - 1.409 500-1000
Modfluid-1020-SE Non reactive 20 ± 2 1.413 -1.420 500 - 4000
Modfluid-1040-SE Non reactive 40 ± 2 1.413 -1.420 500 - 4000
Modfluid-SQ-1117 Non reactive 17 ± 2 1.408 – 1.414 500 - 2000
Modfluid-SQ-1135 Non reactive 32 ± 2 1.408 – 1.414 500 - 2000
Modfluid-SF Quaternary 6 ± 1 1.403 - 1.409 100 - 900
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Product Name Type Amine Value(mgKOH/gm)
Refractive Index Viscosity in cps
POLYDIMETHYL SILOXANE
Modfluid-KL-350 Polydimethyl siloxane
---- 1.4010-1.4040 300-400
Modfluid-KL-1000 Polydimethyl siloxane
----- 1.4010-1.4040 900-1100
Modfluid-KL-12000 Polydimethyl siloxane
----- 1.4010-1.4040 11500 – 12500
Modfluid-KL-30000 Polydimethyl siloxane
----- 1.4010-1.4040 29000 – 31000
Modfluid-KL-60000 Polydimethyl siloxane
----- 1.4010-1.4040 59000 – 61000
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