Shanghai Daoqin Plastics Co., Ltd.

 一. how to reduce plastics cost?

1） overview

filling reduce plastics cost is in resin in add cost low filler, or is filling agent. commonly used filler main/primary is 天然矿 material and industrial waste and other, in addition also has powder and housing/shell powder and other has machine filler and waste hot solid property plastics powder and other. filler is plastics additives in application most 广泛, consumption amount most large type additives.

2）无 machine filling 目

for/regarding thermoplastic property plastics, main/primary is reduce cost; for/regarding hot solid property plastics is reduce cost and modified has 之. filling remove reduce cost outer, also can improvement products certain property can. can improvement has rigid property, heat resistant property （无 machine filler ）, dimensional stability, reduce molding shrinkage and resistant creep property and other; has also can improvement insulation property, flame retardant property, property and property and other.

3） commonly used filler

a.CaCO3 type filler

b. slip powder filler

c. silicon filler

d. high filler

e.云母 filler

f. silicon filler

4） formulation design key points

a. filler property

b. filler resin property

鉴于 filler tool has upper types property and resin property, in filling formulation design attention/notes below/following 两点:

a. formulation system in has liquid additives 时, need selection property small filler.

b. formulation system in has liquid resin 时, need selection resin property small filler.

图1: CaCO3 filling material

blending reduce plastics cost is in high resin in mixed low resin or waste plastics, to reduce cost process. and filling reduce plastics cost versus ratio its cost decline degree separation large, tool has for its property can effect/influence relatively small advantages.

in use resin in, versus for low resin main/primary is: PVC, LDPE, LLDPE, HDPE, PP and PS七 types, blending resin mixed this resin.

plastics add fiber reinforcement methods is types most commonly used has reinforcement methods.

reinforcement use fiber type material is plastics use most main/primary reinforcement material, its use amount can reinforcement material 90% above.

reinforcement use fiber type material fiber and must large type, specific product types main/primary has:

无 machine type: glass fiber, fiber, carbon fiber, must, fiber, fiber and fiber and other;

has machine type: 如PAN fiber, polyethylene (PE) fiber, PA fiber, PC fiber, PVC fiber and polyester fiber and other;

metal type: fiber and aluminum, titanium, and other metal must and other.

图2: glass fiber reinforced PP材质 保险杠

in has filler in, remove has machine filler outer, large separation machine material filler can obvious improve/increase plastics heat resistant temperature degree. commonly used heat resistant filler has: carbon acid 钙, slip powder, silicon 灰石, 云母, 煅烧陶土, aluminum and and other. 例如, most high use temperature degree can 达1000摄氏 degree, is most has heat resistant modified filler.

plastics reinforcement heat resistant property ratio filling also need good, this main/primary is is large separation fiber heat resistant temperature degree separation high, melting point large ultra- 1500摄氏 degree. commonly used heat resistant fiber main/primary has: fiber, glass fiber, carbon fiber, must, polyamide (PA) fiber and acrylic ester fiber and other

large more plastics flame retardant property is separation good, amount resin flame retardant property good and 否, generally use lower indicators.

1） oxygen index (LOI) （OI）

2） USA UL standards （ UL -94）

USA UL standards in testing methods is plastics in 直接接触火源时 燃烧情况, for its resistant property analysis.

a, V-0 grade 　离火 rear 10s inner 熄灭, 并不引燃 its lower 方30cm处药棉

b, V-1 grade 　离火 rear 10—30s inner 熄灭, 并不引燃 its lower 方30cm处药棉

c, V-2 grade 　离火 rear 30s inner 熄灭, can its lower 方30cm处药棉

plastics add flame retardant formulation in commonly used formed is flame retardant, it is type can retardant plastics or made 火焰传播 additives.

flame retardant is plastics formulation in commonly used additives, its consumption amount 仅次于 filler and increase agent formed is plastics large additives product types. flame retardant types type very more, currently already 见报道 already upper types, but also use already 达百余 types.

comparison commonly used flame retardant its separation formed can separation is: 卤系化 combined material, 磷系化 combined material, nitrogen combined material, has machine silicon combined material and type machine material, 如AI(OH)3, Mg(OH)2 and Sb2O3 and other