Plastic and rubber(PA processing aids)

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CYD COMPANY Please mail to [email protected] to get more info and details. Tel: 86-631-5582881 Add: No.369-13,Industrial District,Weihai City,Shandong Province,China,264205 CYD Dendritic Polymers-Plastics and Rubber Additives Polyamide (PA) Processing Aids Product Description Dendritic polymers as "the fourth class of new polymer materials", are attractive to the scientific world and industrial circles. The novelty of these materials includes highly branched molecular structure, a large number of surface functional groups, void space in molecules, monodisperse molecular weight distribution and nanoscale dimensions. The structural characteristics of dendritic polymers lead to unique properties such as excellent solubility and dispersion properties, low melt viscosity and solution viscosity, difficult to crystallize and easy to form film, showing unparalleled nano features. Dendritic polymers are excellent modifiers for polyamide (PA) because of the unique structure and physicochemical characteristics. 1) Improve tensile strength, flexural strength, impact strength and rheological properties (improve melt fluidity, lower plasticizing temperature) in PA6 ; 2) Used as compatilizer for PA6, PP or other nylon, such as PA11, PA1010 , improve both compatibility and mechanical properties; 3) Improve dispersion of glass fibers, carbon fibers and various inorganic fillers in PA6; 4) Decrease spinning temperature of nylon to reduce thermal degradation; 5) Endow PA6 with excellent low temperature toughness, thereby increase performance of low temperature resistance. Excellent performance of nylon system with dendritic polymers: Improve mechanical properties of PA6, such as tensile strength, flexural strength, impact strength, etc.; Improve flowability, processability of PA6;

description

Dendritic polymers are excellent modifiers for polyamide (PA) because of the unique structure and physicochemical characteristics. 1) Improve tensile strength, flexural strength, impact strength and rheological properties (improve melt fluidity, lower plasticizing temperature) in PA6 ; 2) Used as compatilizer for PA6, PP or other nylon, such as PA11, PA1010 , improve both compatibility and mechanical properties; 3) Improve dispersion of glass fibers, carbon fibers and various inorganic fillers in PA6; 4) Decrease spinning temperature of nylon to reduce thermal degradation; 5) Endow PA6 with excellent low temperature toughness, thereby increase performance of low temperature resistance.

Transcript of Plastic and rubber(PA processing aids)

Page 1: Plastic and rubber(PA processing aids)

CYD COMPANY     

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

CYD Dendritic Polymers-Plastics and Rubber Additives

Polyamide (PA) Processing Aids

Product Description 

Dendritic� polymers� as� "the� fourth� class� of� new� polymer� materials",� are�

attractive� to� the� scientific� world� and� industrial� circles.� The� novelty� of� these�

materials� includes� highly� branched� molecular� structure,� a� large� number� of�

surface� functional� groups,� void� space� in� molecules,� monodisperse� molecular�

weight�distribution�and�nanoscale�dimensions.�The�structural�characteristics�of�

dendritic�polymers� lead�to�unique�properties�such�as�excellent�solubility�and�

dispersion� properties,� low� melt� viscosity� and� solution� viscosity,� difficult� to�

crystallize�and�easy�to�form�film,�showing�unparalleled�nano�features.�

Dendritic�polymers�are�excellent�modifiers�for�polyamide�(PA)�because�of�the�

unique� structure� and� physicochemical� characteristics.� 1)� Improve� tensile�

strength,� flexural� strength,� impact� strength� and� rheological� properties�

(improve� melt� fluidity,� lower� plasticizing� temperature)� in� PA6� ; 2) Used� as�

compatilizer�for�PA6,�PP�or�other�nylon,�such�as�PA11,�PA1010�,�improve�both�

compatibility�and�mechanical�properties;�3)�Improve�dispersion�of�glass�fibers,�

carbon� fibers� and� various� inorganic� fillers� in� PA6;� 4)� Decrease� spinning�

temperature� of� nylon� to� reduce� thermal� degradation;� 5)� Endow� PA6� with�

excellent� low� temperature� toughness,� thereby� increase� performance� of� low�

temperature�resistance.�

Excellent performance of nylon system with dendritic polymers: 

• Improve�mechanical�properties�of�PA6,�such�as�tensile�strength,�flexural�

strength,�impact�strength,�etc.;�

• Improve�flowability,�processability�of�PA6;�

Page 2: Plastic and rubber(PA processing aids)

CYD COMPANY     

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

• Lower�processing�temperature�,�reduce�thermal�decomposition�of�PA6,�

decrease�energy�consumption,�save�cost;�

• Improve�the�low�temperature�resistance�performance�of�PA6;�

• Improve�compatibility�of�PA6�with�other�nylon�systems�or�other�resins�such�

as�PP;�

• Improve�dispersion�of�inorganic�fillers�such�as�glass�fiber�in�the�PA�system.�

Basic Physical Properties 

No.� Test�Items� Unit� Index�

1� Appearance� ---� Viscous�liquid�or�solid�

2� Volatile� %�(w/w)� ≤ 2%�

3� Density� g/ml� 1.0~1.5�

 

PA6 performance improved by dendritic polymers--1 

Preparation methods: The�premixed�material�of�dendritic�polymers�and�PA6�was�

dried� firstly� and� then� extruded� and� granulated� from� Twin-screw� extruder�

(screw� length-diameter� ratio� � L/D=30,� screw� diameter� ф =35mm),� heating�

temperature��section:�zone�1�100�℃,�zone�2�200�℃,�zone�3�227�℃,�zone�4�230�

℃,�zone�5�215�℃,�screw�speed�80r/min.�The�granulated�material�was�dried�in�

vacuum� drying� oven� at� 80℃� around� 12h,� and� then� injected� into� standard�

samples� from� M20-55� Injection� Machine(Maximum� injection� pressure�

1700kg/cm3)�for�test�of�stretch,�impact�and�bend,�the�mold�temperature�was�

room�temperature.�

In� PA6� systems,� 1.5%� dendritic� polymers� will� increase� the� tensile� strength�

from� 75.4MPa� to� 77.2MPa,� improved� by� 2.4%;� bending� strength� increased�

from� 139.5MPa� to� 146.3MPa,� enhanced� by� 4.9%;� bending� modulus� raised�

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CYD COMPANY     

from� 1901.0MPa� to� 1958.7MPa,� improved� by� 3.0%;� elongation� at� break,�

impact�strength�show�best�performance�when�dosage�was�1%,�enhanced�from�

168.8%,�33.9J/m�to�202.5%,�39.5J/m,�raised�19.96%�and�16.52%.�

As�shown�in�Figure�1,�PA6�with�1.5%�dendritic�polymers,�melt�index�of�blend�

was� increased� from� 18.2g/10min� to� 46.7g/10min,� enhanced� by� 156%,� thus�

improving�processing�performance.�

As� shown� in� Figure� 2,� complex� viscosity� of� blend� was� obviously� decreased�

with� dosage� increasing� of� dendritic� polymers,� maximum� initial� complex�

viscosity� was� reduced� around� 70%,� and� then� a� little� increase,� so� with� 1.5%�

dendritic�polymers,�rheological�properties�of�dendritic�polymers/PA6�reached�

best.�

Melt Index

Figure�1�Effect�of�dendritic�polymers�dosage�on�melt�index�of�nylon�blends�

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

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CYD COMPANY     

Figure�2�Effect�of�dendritic�polymers�dosage�on�rheological�properties�of�PA�blend�

PA6 performance improved by dendritic polymers--2

Preparation methods:  

Blend� of� PA6/dendritic� polymers� (0.1-2.0%� of� PA6� amount)� was� melted� and�

extruded�through�Twin-screw�extruder,�then�dried�in�vacuum�around�12h�and�

injected�into�standard�samples,� injection�pressure�80bar,�back�pressure�5bar,�

maintaining pressure�60bar,�the�mold�temperature�was�30℃.�

As� shown� in� Table� 1,� compared� with� pure� PA6� system� at� different�

temperature,� melt� index� of� system� was� greatly� increased� after� adding�

dendritic�polymers,�when�dosage�was�2.0%,�melt�index�at�235℃,�245℃,�255℃�

and�265℃�was�improved�by�41.3%,�46.1%,�37%,�36.1%.�

As� shown� in� Table� 2,� with� 0.5%� dendritic� polymers� as� additives,� injection�

molding�temperature�was�decreased�10℃�compared�with�pure�PA6�system,�if�

increase� the� dosage� to� 2.0%,� processing� temperature� lowered� 15℃,� thus�

reducing�thermal�degradation�during�processing.�

Dendritic� polymers� as� additives� can� significantly� improve� mechanical�

properties� of� PA6,� with� 2.0%� dosage,� the� yield� strength,� tensile� modulus,�

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

Page 5: Plastic and rubber(PA processing aids)

CYD COMPANY     

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

notched� impact� strength� and� flexural� strength� were� increased� by� 12.8%,�

30.8%,�44.2%,�17.5%.�

Table 1 Melt flow index of PA6/Dendritic polymers blends with different  

dendritic polymers contents.�(Load: 2.16 kg) 

MFI(g/10min) Dendritic polymers 

content(wt%) 235℃  245℃  255℃  265℃ 

Pure PA6  13.8  19.1  25.4  32.1 

0.1  13.6  18.5  24.8  31.6 

0.5  16.2  21.2  27.5  33.2 

1.0  17.1  22.5  29.2  35.0 

2.0  19.5  27.9  34.8  43.7 

� Table 2 Injection molding temperatures of PA6/Dendritic polymers blends�

Barrel temperature(℃) Dendritic polymers 

content(wt%) Ⅰ  Ⅱ  Ⅲ  Ⅳ 

Pure PA6 220 235 230 220

0.1 215 230 225 215

0.5 210 225 220 210

1.0 210 220 215 205

2.0 205 215 210 205

 

Page 6: Plastic and rubber(PA processing aids)

CYD COMPANY     

Please�mail�to�[email protected]�to�get�more�info�and�details.�

Tel:�86-631-5582881�

Add:�No.369-13,Industrial�District,Weihai�City,Shandong�Province,China,264205�

Dendritic polymers improve compatibility performance of PA6/PA1010 

3.0%�content�dendritic�polymers�was�added�to�blend�of�PA6/PA1010,�tensile�

strength was� enhanced� 18.8%� which� from� 66.1MPa� to� 78.5MPa,� bending�

strength� was� increased� by� 15.7%� which� from� 82.2MPa� to� 95.1MPa,� and�

flexural�modulus�was�raised�by�26.4%�which�from�1938MPa�to�2450MPa.�The�

data� shows� that� dendritic� polymers� play� compatibilization� effect� in� blends�

systems,�strengthen�the�interface�binding�between�PA6�and�PA1010,�and�also�

improve�processing�fluidity.�

Applicable Grades:CYD-P Series, CYD-PR121, CYD-PR526, CYD-PU738,

CYD-PD529 etc.