CN104877296A - ABS/recovery PET composite material and product thereof - Google Patents

Abstract

The present invention discloses an ABS/recycled PET composite material and its products. The composite material includes, in parts by weight, a thermoplastic resin comprising 50-60 parts of ABS resin, 35-45 parts of recycled PET engineering resin and recycled polycarbonate 0.1-2 parts; toughening filling material, which includes 1-3 parts of shell structure toughening agent and 1-3 parts of granular filling material. Compared with the prior art, the ABS/recycled PET composite material and its products of the present invention use ABS resin as a matrix, add PET engineering resin recycled from PET bottles, composite tougheners, and crystal nucleating agents to form simultaneously good Higher mechanical strength, higher fluidity composite resin composition. Through repeated experiments, the present invention finds that the above object can be achieved through the compounding of two different toughening agents and the synergistic effect of the crystal nucleating agent.

Description

ABS/recycled PET composite material and its products

【Technical field】

The invention belongs to the technical field of polymer materials, and in particular relates to an ABS/recycled PET composite material and a product thereof.

【Background technique】

Due to the advancement of science and technology and the improvement of human living standards, hundreds of thousands of tons of products made of PET and ABS are currently being consumed every year, causing a great burden on the earth's environment. "Effective recycling" has become the most concerned topic in the world. topic.

In response to the needs of the times, actively invest in research in this area, use more than 30% environmentally friendly materials, create corresponding specifications, and pass the verification of Taiwan Plastic Hair Center, truly implement the purpose of "effective recycling" and meet the requirements of EPEAT in the United States. Also do your part for the earth.

However, currently most of the environmentally friendly compositions on the market are made by adding 30% recycled PET, and there is no high-performance fully recycled part. Most of the resin compositions have problems such as insufficient mechanical properties and easy embrittlement.

In view of this, it is necessary to develop an ABS/recycled PET composite material and its products to solve the problem of insufficient mechanical properties and easy embrittlement of existing recycled resin materials.

【Content of invention】

Therefore, the object of the present invention is to provide an ABS/recycled PET composite material and its products, which composite material has good flowability and mechanical strength at the same time.

In order to achieve the above-mentioned purpose, the ABS/recycled PET composite material of the present invention, it represents by weight and includes:

Thermoplastic resin, which includes 50-60 parts of ABS resin, 35-45 parts of recycled PET engineering resin and 0.1-2 parts of recycled polycarbonate;

The toughening filling material comprises 1-3 parts of shell structure toughening agent and 1-3 parts of granular filling material.

Optionally, the ABS resin has a water absorption rate of 0.02-0.10%, a glass transition temperature of 95-110 degrees, and an MI value flow index of 3-10 g/min at 250° C./10 kg.

Optionally, the recycled PET engineering resin is the PET engineering resin of Hongju Plastics.

Optionally, the recycled polycarbonate has a water absorption rate of 0.06-0.10%, a glass transition temperature of 130-170° C., and a viscosity-average molecular weight of 17,000-20,000.

Optionally, the core of the toughening agent with shell structure is butadiene-styrene rubber, and the shell is polymethyl methacrylate.

Optionally, the granular filling material is a crystallization accelerator used for polyester polymers.

Optionally, the ABS/recycled PET composite material further includes at least one of the ABS, recycled PET, thermoplastic resin other than recycled PC, rubbery polymer, and flow modifier.

Optionally, the ABS/recycled PET composite material further includes at least one of a stabilizer, a release agent, an antibacterial agent, a dispersant, a photocatalyst-based antifouling agent, and a photochromic agent.

Optionally, the stabilizer is at least one of phosphorus-based stabilizers, hindered phenolic antioxidants, ultraviolet absorbers, and light stabilizers.

In addition, the present invention also provides a product, which is a product produced after molding the ABS/recycled PET composite material.

Compared with the prior art, the ABS/recycled PET composite material and its products of the present invention use ABS resin as a matrix, add PET engineering resin recycled from PET bottles, composite tougheners, and crystal nucleating agents to form simultaneously good Mechanical strength, fluidity composite resin composition. Through repeated experiments, the present invention finds that the above object can be achieved through the compounding of two different toughening agents and the synergistic effect of the crystal nucleating agent.

【Detailed ways】

ABS/recycled PET composite material of the present invention, it represents by weight and comprises:

Thermoplastic resin, which includes 50-60 parts of ABS resin, 35-45 parts of recycled PET engineering resin and 0.1-2 parts of recycled polycarbonate; the water absorption rate of the ABS resin is 0.02-0.10%, and the glass transition temperature is 95-110 degrees , the flow index of MI value is 3～10g/min under 250 ℃/10kg; The described recycled PET engineering resin is the PET engineering resin of the plastic bottle recycled by macropolyplastics; The water absorption rate of the described recycled polycarbonate is 0.06～0.10 %, the glass transition temperature is 130-170°C, the viscosity-average molecular weight is 17000-20000, the polycarbonate polymer itself has good hydrolysis resistance, and the low warpage after molding is also exceptionally excellent;

Toughening filling material, which includes 1-3 parts of shell structure toughening agent and 1-3 parts of granular filling material; shell structure toughening agent, its core is butadiene-styrene rubber, and its shell is polymethacrylate Ester (hard shell); the granular filling material is a crystallization accelerator used by polyester polymers;

Other auxiliary agents can be at least one of the molecular weight reduction during molding processing, stabilizers for low color tone stabilization, mold release agents, antibacterial agents, dispersants such as liquid paraffin, photocatalyst-based antifouling agents, and photochromic agents. The stabilizer is at least one of a phosphorus stabilizer, a hindered phenolic antioxidant, an ultraviolet absorber, and a light stabilizer; it can be a thermoplastic resin other than the ABS, recycled PET, and recycled PC, or a rubber polymer At least one of substance and flow modifier.

In order to have a further understanding of the purpose, technical means and functional effects of the present invention, the present invention will be described below in conjunction with specific embodiments.

Example 1:

Dry the ABS, recycled PET, and recycled PC in an oven with a dehumidification dryer; weigh and mix the dried ABS, recycled PET, and recycled PC; weigh the shell structure toughener, crystallization accelerator and other additives, Then add it to a high-speed mixer for high-speed premixing; add the mixture in the above steps to a twin-screw extruder for melt extrusion and granulation.

Example 2:

Dry the ABS, recycled PET, and recycled PC in an oven with a dehumidification dryer; weigh and mix the dried ABS, recycled PET, and recycled PC; weigh the shell structure toughener, crystallization accelerator and other additives, Then add it to a high-speed mixer for high-speed premixing; add the mixture in the above steps to a twin-screw extruder for melt extrusion and granulation.

Example 3:

Dry the ABS, recycled PET, and recycled PC in an oven with a dehumidification dryer; weigh and mix the dried ABS, recycled PET, and recycled PC; weigh the shell structure toughener, crystallization accelerator and other additives, Then add it to a high-speed mixer for high-speed premixing; add the mixture in the above steps to a twin-screw extruder for melt extrusion and granulation.

After above each embodiment is melt extruded granulation, then on the injection molding machine injection molding ASTM standard test specimen, test the mechanical property of gained material by ASTM standard, wherein test impact strength according to ASTM D256, test tensile strength according to ASTM D638, The flexural strength and flexural modulus were tested according to ASTM D790, the fluidity MI value was tested according to ASTM D1238, and the flame retardancy was tested according to the UL-94 standard. The test results are shown in Table 1:

Table 1: The test result of embodiment

Test items unit Example 1 Example 2 Example 3 Impact strength KJ/ ^m2 7.2 8.8 10.2 Tensile Strength MPa 43 45 48 Bending strength MPa 65 70 75 Flexural modulus MPa 2120 2250 2340

MI 250℃,10Kg 40 55 69

It can be concluded from Table 1 that the recycled PC and recycled PET composite materials of the present invention have good mechanical strength and fluidity.

In the present invention, the composite material (40% recycled PET) obtained in the present invention is compared with related products of Samsung, and the test results are shown in Table 2 below:

Table 2: Comparative test results

Test items unit Samsung GC0700 (measured value) this invention proportion 1.08 1.118 liquidity index g/10min. 30.2(250/10.0) 69.8 (250/10.0) Bending strength psi 12164 11976 Flexural modulus psi 364330 330672 Impact strength 23℃ft-lb/in. 3.93 3.95 tensile strength psi 7083 6700 Stretch % 12.61 15.97 Heat distortion temperature ℃(264psi) 88.6 90.3

It can be concluded from Table 2 that the composite material obtained in the present invention has higher mechanical strength and higher fluidity.

The present invention also provides a product, which is a product produced after molding the ABS/recycled PET composite material.

The ABS/recycled PET composite material and its products of the present invention use ABS resin as a matrix, add PET engineering resin recycled from PET bottles, composite tougheners, and crystal nucleating agents to form good and higher mechanical strength. Higher flow composite resin composition. Through repeated experiments, the present invention finds that the above object can be achieved through the compounding of two different toughening agents and the synergistic effect of the crystal nucleating agent. The problem of insufficient mechanical properties and easy embrittlement of existing recycled resin materials is solved.

Claims (10)

1. an ABS/ recycled PET matrix material, is characterized in that, it represents by weight and comprises:

Thermoplastic resin, it comprises ABS resin 50 ~ 60 parts, recycled PET engineering resin 35 ~ 45 parts and reclaims polycarbonate 0.1 ~ 2 part;

Toughness reinforcing packing material, it comprises shell structure toughner 1 ~ 3 part and particulate filler material 1 ~ 3 part.

2. ABS/ recycled PET matrix material as claimed in claim 1, it is characterized in that, described ABS resin water-intake rate is 0.02 ~ 0.10%, and glass transition temp is 95 ~ 110 degree, and MI value flow index is 3 ~ 10g/min under 250 DEG C/10kg.

3. ABS/ recycled PET matrix material as claimed in claim 1, it is characterized in that, described recycled PET engineering resin is the PET engineering resin of grand poly-plastic cement.

4. ABS/ recycled PET matrix material as claimed in claim 1, it is characterized in that, described recovery polycarbonate water-intake rate is 0.06 ~ 0.10%, and glass transition temp is 130 ~ 170 DEG C, and viscosity-average molecular weight is 17000 ~ 20000.

5. ABS/ recycled PET matrix material as claimed in claim 1, it is characterized in that, described shell structure toughner, its core is Afpol, shell is polymethylmethacrylate.

6. ABS/ recycled PET matrix material as claimed in claim 1, is characterized in that, described particulate filler material is the crystallization promoter that polyester polymer uses.

7. ABS/ recycled PET matrix material as claimed in claim 1, is characterized in that, described ABS/ recycled PET matrix material also comprises at least one in thermoplastic resin beyond described ABS, recycled PET, recovery PC, rubber polymer, flow ability modifying agent.

8. ABS/ recycled PET matrix material as claimed in claim 1, it is characterized in that, described ABS/ recycled PET matrix material also comprises stablizer, releasing agent, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent at least one.

9. ABS/ recycled PET matrix material as claimed in claim 8, it is characterized in that, described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer.

10. a product, is characterized in that, the product of described product for producing after ABS/ recycled PET composite material forming according to any one of claim 1 to 9.