PVC Resin

♦ Physical appearance: white or canary loose grain or powder with no smell, odorless and innocuity.
♦ CAS NO:68648-82-8 
♦ Molecular Formula:- (CH2 - CHCl)n -
♦ PVC resin is the most widely raw material used in plastic production. It has good chemical stability corrosion resistance and water resistance. It can be dissolved in acetone , hydrochloric ether, ester and some alcohol . It can offer good solubility , good electrical insulation , thermoplasticity and membrane forming capacity.
♦ The PVC Resins are polymerized by suspension process, their appearance being in white powder form.  They are essential materials for preparing PVC compounds. By adding blending agents and employing different techniques, they can be made into rigid or non-rigid PVC products and are suppliable in a wide range of transparent, translucent, and opaque colours.
♦ Our PVC Resins are distinguished for their insulating, moisture-proof, oil-resistant, acid-resistant, and alkali-resitant properties. 
♦ Application:
SG-1 is used in producing high-grade electrical insulating material 
SG-2 is used in producing electrical insulating material, common soft products and film 
SG-3 is used in producing electrical insulating materials, agricultural film, daily-use plastic products, 
SG-4 is used in producing membranelle for industrial and civil use, tube and pipes 
SG-5 is used in producing transparent products section bar, hard tube and decorative materials 
SG-6 is used in producing clear foil, hard board and welding rod 
SG-7, SG-8 is used in producing clear foil, hard injection molding.

Suspension Grade	SG1	SG2	SG3	SG4	SG5	SG6	SG7	SG8
K value	77-75	74-73	72-71	70-69	68-66	65-63	62-60	59-55
Viscosity, ml/g	156-144	143-136	135-127	126-119	118-107	106-96	95-87	86-73
Average polymerization			1350-1250	1250-1150	1100-1000	950-850	950-850	750-650
Number of impurity particle≤	30	30	30	30	30	30	40	40
Volatiles content %,≤	0.40	0.40	0.40	0.40	0.40	0.40	0.40	0.40
Appearing density g/ml≥	0.42	0.42	0.42	0.42	0.42	0.45	0.45	0.45
Residual after sieve 0.25mm mesh≤	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
0.063mm l≥	90	90	90	90	90	90	90	90
Number of grain/400cm2≤	40	40	40	40	40	40	40	40
Plasticizer absorbency value of 100g resin	25	25	25	22	19	16	14	14
Whiteness %,≥	74	74	74	74	74	74	70	70
Residual chlore thylene content mg/kg≤	5	5	5	5	5	5	5	5
Ethylidene chloride mg/kg≤	150	150	150	150	150	150	150	150