Unlock instant, AI-driven research and patent intelligence for your innovation.

PMMA/ASA graft copolymer and preparation method thereof

A graft copolymer and copolymer technology, applied in the field of PMMA/ASA graft copolymer and its preparation, can solve the problems of complex operation, high cost, low production efficiency, etc., and achieve high gloss, excellent processing performance, pigment good affinity effect

Active Publication Date: 2019-02-26
山东金昌树新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, PMMA / ASA composite materials are all PMMA resin, ASA resin and impact modifier are separately added to the extruder, the production efficiency is low, the operation is complicated, and the cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PMMA/ASA graft copolymer and preparation method thereof
  • PMMA/ASA graft copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A preparation method of PMMA / ASA graft copolymer, comprising:

[0051] Step 1: Into a 500ml four-necked flask, nitrogen protection was introduced, 155.4g of deionized water was added, and the temperature was raised to 70°C. 80g styrene (St), 20g butyl methacrylate (BMA), and 1.5g ethylene glycol dimethacrylate are made into a monomer composition, and after shaking well, first add half to the four-necked bottle, and then Then add 2g of sodium dodecylbenzenesulfonate, stir evenly, add 0.05g of sodium persulfate initiator, wait for the reflux to finish and react, then add the other half of the monomer composition and 0.05g of sodium persulfate initiator. After the reflux was completed, the temperature was kept at 80° C. for 1.5 h, and the first layer of glassy polymer core of the PMMA / ASA composite material was obtained, and the conversion rate was measured to be 97%.

[0052] Step 2: Take 25.77g of the emulsion of step 1 in a 1000ml four-necked bottle, add 300g of deioni...

Embodiment 2

[0057] A kind of preparation method of PMMA / ASA graft copolymer, only change the consumption of chain transfer agent in step 4, the α-methylstyrene linear dimer consumption increases to 1.65g (accounting for 1.5wt% of monomer total amount) , all the other conditions are the same as in Example 1.

Embodiment 3

[0059] A kind of preparation method of PMMA / ASA graft copolymer, in step 1, emulsion polymerization reaction process is constant, from step 2, get 5 parts of seed emulsions in step 1, the total monomer consumption of the second layer is 30 parts, the third The total monomer consumption of the layer is 20 parts, the total monomer consumption of the fourth layer is 45 parts, and the ratio between the monomers of each layer remains unchanged. The specific experimental operation process was prepared according to the detailed steps and experimental conditions described in Example 1 to prepare the PMMA / ASA composite material.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a PMMA / ASA graft copolymer and a preparation method thereof, belonging to the technical field of PMMA / ASA composite materials. The PMMA / ASA graft copolymer comprises four layers, wherein a first layer is a glassy state polymer core; a second layer is a rubber copolymer grafted onto the glassy state polymer core; a third layer is a glassy state polymer grafted onto the rubber copolymer; and a fourth layer is a glassy state polymer grafted onto the third layer. The PMMA / ASA graft copolymer of the invention has the advantages of high impact resistance, excellent processingproperties, high gloss, good transparency, good pigment affinity, etc.

Description

technical field [0001] The invention relates to the technical field of PMMA / ASA composite materials, in particular to a PMMA / ASA graft copolymer and a preparation method thereof. Background technique [0002] As we all know, PMMA (organic glass) polymerized from MMA monomer is an important organic transparent structural material, which has the advantages of high transparency, good weather resistance, relatively balanced physical and mechanical properties, and excellent processing performance. However, it still has disadvantages such as poor heat resistance, easy moisture absorption, and poor impact performance. ASA resin is a ternary polymer composed of acrylonitrile, styrene and acrylate rubber, which was successfully developed in the 1970s. It belongs to impact-modified resin. ASA is a main product of the General Plastics Group under General Electric (GE) of the United States. In August 2002, it was promoted to the Chinese PVC color co-extrusion profile market as a co-ext...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F285/00C08F212/08C08F220/14C08F220/44
CPCC08F285/00C08F212/08
Inventor 屈勇
Owner 山东金昌树新材料科技有限公司