CN104845410B

CN104845410B - A kind of preparation and its application of plastic modifier

Info

Publication number: CN104845410B
Application number: CN201510154125.4A
Authority: CN
Inventors: 刘学习; 吴波
Original assignee: Shanghai Aosaier Mstar Technology Ltd
Current assignee: Shanghai aosaier Mstar Technology Ltd
Priority date: 2015-04-02
Filing date: 2015-04-02
Publication date: 2018-10-26
Anticipated expiration: 2035-04-02
Also published as: CN104845410A

Abstract

The invention discloses a kind of preparation methods of the plastic modifier of good dispersion, which is characterized in that includes the following steps：S1, the grain size and moisture content for measuring inorganic particle；S2, average grain diameter is selected in S1 to be 200nm-300nm, moisture content is less than 0.25% inorganic particle；S3, the inorganic particle in S2 is added to high-speed stirred bucket, heating systems temperature stirs 7 minutes to 100 DEG C -105 DEG C；S4, active constituent is sprayed into S3 while stirring, the mass ratio of active constituent and inorganic particle is 0.7:100, spray time is 10-15 minutes；S5, it is cooled to room temperature, material is discharged.Based on the plastic modifier, vector resin, dispersant, coupling agent, heat stabilizer and antioxidant is added, after being stirred to react, system is added in Granulation Equipments, high temperature squeezes out, and obtains master batch finished product.The plastic modifier good dispersion of the present invention prepares master batch based on the plastic modifier of the present invention, is applied in plastic products, realizes the effect of high intensity and the high grade of transparency.

Description

A kind of preparation and its application of plastic modifier

Technical field

The present invention relates to a kind of preparation of plastic modifier and application more particularly to a kind of polyethylene or PP type plastics The preparation and its application of modifying agent.

Background technology

Plastics refer to resin（Or monomer direct polymerization is used in process）For main component, with plasticizer, fill The additives such as agent, lubricant, colorant are auxiliary element, processed molding plastic material, or the rigidity that is cross-linked to form of solidification Material.Plastics are the products in 20th century, since by since developing, the purposes of various aspects is increasingly extensive.

Polyethylene and PP type plastics belong to the scope of general-purpose plastics, and yield is big, and purposes is wide, and most important purposes exists In on packing film.Since " limit purchase enables ", client is higher and higher to the transparency and intensity requirement of packing film.In this way Background under, the use of traditional market calcium carbonate, talcpowder filled masterbatches cannot be satisfied the demand of client.In addition, common Plastic film packaging market price competition is very fierce, a kind of raw material production cost that can reduce product of exploitation and raising The new material of properties of product is just particularly important.

Invention content

In order to solve the problems in the prior art, the object of the present invention is to provide a kind of preparation method of plastic modifier and It is applied, while providing the master batch obtained based on the plastic modifier for increasing product strength, reducing goods cost and mother The preparation method of grain.

To achieve the goals above, the technical solution adopted by the present invention：

A kind of preparation method of plastic modifier, which is characterized in that include the following steps：

S1, the grain size and moisture content for measuring inorganic particle；

S2, average grain diameter is selected in S1 to be 200nm-300nm, moisture content is less than 0.25% inorganic particle；

S3, the inorganic particle in S2 is added in high-speed stirred bucket, heating systems temperature is to 100 DEG C -105 DEG C, stirring 7 Minute；

S4, active constituent is sprayed into S3 while stirring, the mass ratio of active constituent and inorganic particle is 0.7:100, spray It is 10-15 minutes to drench the time；

S5, it is cooled to room temperature, material is discharged.

Wherein, the inorganic particle is nano barium sulfate or nano-calcium carbonate.

Wherein, the active constituent is stearates surfactant or titanate ester surfactant.

Wherein, the sprinkling equipment is high speed mixing smelting machine.

By plastic modifier powder application made from preceding method in prepare transparent packaging film, biodegradable shopping bag, Increase intensity, glossiness, the transparency of shopping bag for supermarket, bag on roll, mute tubing, crystalline p p sheet and polypropylene board product Master batch.

Master batch obtained based on the plastic modifier powder that manner described above obtains, which is characterized in that including：75%- 80% plastic modifier powder, the vector resin of 12%-18%, the dispersant of 3%-4%, coupling agent 0.5%-3%, heat stabilizer 0.1%-1%, antioxidant 0.05%-2%.

Wherein, the vector resin is linear polyethylene, metallocene PE, one kind in polyethylene elastomer or several Kind；The dispersant be polyethylene wax, ethylene/methyl acrylate copolymer, one kind of ethylene/ethyl acrylate copolymer or It is several；The coupling agent is titanate coupling agent or silane coupling agent；The heat stabilizer is stearate, preferably Calcium stearate or zinc stearate；The antioxidant is 1010 or 168.

The method for preparing aforementioned master batch, which is characterized in that include the following steps：

A1, each material is weighed according to mass percent above-mentioned；

A2, plastic modifier powder is placed in A barrels, vector resin is placed in B barrels, dispersant, coupling agent, heat stabilizer It is placed in C barrels with antioxidant；

A3, flow control valve is opened, the material in A barrels, B barrels and C barrels is added to high-speed stirred bucket simultaneously, passes through computer The flow of A barrels of control is 520-560kg/h, and B barrels of flow is 130-160kg/h, and C barrels of flow is 70-80kg/h, stirring Reaction；

A4, the mixed material in A3 is added in Granulation Equipments, is squeezed out at 110 DEG C -160 DEG C, obtains master batch finished product.

Wherein, the reaction temperature in the step A3 is 80-120 DEG C, reaction time 0.5-1h.

Wherein, the Granulation Equipments is that computer swears metering twin-screw Dual inoculation.

Plastic modifier good dispersion produced by the present invention, plastic products can be greatly reduced by being added in plastic products Fisheye；Master batch is prepared based on the plastic modifier of the present invention, is applied to transparent packaging film, biodegradable shopping bag, surpasses In the products such as the mute tubing of city's shopping bag, bag on roll, crystalline p p sheet and polypropylene board, product realizes high intensity and high transparency The effect of degree, while the plastic modifier price of the present invention is low, reduces the production cost of plastic products；Mother produced by the present invention Grain is applied to plastic products, and the recycling of product may be implemented, meet the demand of today's society low-carbon environment-friendly.

Specific implementation mode

The preparation of one, plastic modifiers

First, inorganic particle is added in high-speed stirred bucket, heating systems temperature stirs 7 points to 100 DEG C -105 DEG C Clock；Then active constituent is sprayed into high-speed stirred bucket while stirring, spray time is 10-15 minutes；It is cooled to room temperature, is discharged Material.The inorganic particle is commercial product, and average grain diameter 200nm-300nm, moisture content is less than 0.25%；The nothing Machine powder is nano barium sulfate or nano-calcium carbonate；The active constituent is stearic acid or titanate ester surfactant.

Table 1：

	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4
					Active constituent	Stearic acid surfactant	Titanate ester surfactant	Stearic acid surfactant	Titanate ester surfactant
Spray time/minute	10	12	15	15
					Inorganic particle ingredient	Nano barium sulfate	Nano-calcium carbonate	Nano-calcium carbonate	Nano barium sulfate
Inorganic particle average grain diameter/nm	200	267	250	300
					Inorganic particle moisture content	0.2%	0.25%	0.2%	0.23%

The embodiment 1-4 plastic modifiers prepared are added in plastic carrier, sheet body is made, are found on sheet body without crystalline substance Point exists, and illustrates plastic modifier good dispersion obtained.

Two, prepare master batch based on plastic modifier

Each material is weighed according to the mass percent of embodiment 5-8；Then the plastic modifier that will be prepared in embodiment 1-4 Powder is placed in A barrels, and vector resin is placed in B barrels, and dispersant, coupling agent, heat stabilizer and antioxidant are placed in C barrels；It opens Material in A barrels, B barrels and C barrels is added to high-speed stirred bucket by flow control valve simultaneously, and the flow that A barrels are controlled by computer is 520-560kg/h, B barrels of flow is 130-160kg/h, and C barrels of flow is 70-80kg/h, is stirred to react；After reaction Mixed material is added in Granulation Equipments, is squeezed out at 110 DEG C -160 DEG C, obtains master batch finished product.The vector resin is linear poly- One or more of ethylene, metallocene PE, polyethylene elastomer；The dispersant is polyethylene wax, ethylene/propene The one or more of sour methyl terpolymer, ethylene/ethyl acrylate copolymer；The coupling agent is titanate coupling agent or silicon Alkane coupling agent；The heat stabilizer is stearate, preferably calcium stearate or zinc stearate；The antioxidant is 1010 or 168.

Table 2：

It is applied in product in order to which the master batch prepared in embodiment 5-8 is better described, realizes product high intensity and height The effect of transparency, by taking embodiment 5 as an example, the HDPE films under detailed test difference master batch additive amount, ldpe film, PP sheet materials Performance indicator.

Table 3：Under different master batch additive amounts, the performance parameter variations of HDPE films

Master batch additive amount	Tensile strength/Mpa	Light transmittance
			0	24.6	94%
3%	25.2	94%
			6%	26.0	94%
9%	26.5	94%
			12%	27.3	90%

Table 4：Under different master batch additive amounts, the performance parameter variations of ldpe film

Master batch additive amount	Tensile strength/Mpa	Light transmittance
			0	20.8	96%
3%	22.1	96%
			6%	23.5	96%
9%	24.9	96%
			12%	24.1	92%

Table 5：Under different master batch additive amounts, the performance parameter variations of PP sheet materials

Master batch additive amount	Tensile strength/Mpa	Light transmittance
			0	30.2	90%
3%	32.1	90%
			6%	33.5	90%
9%	34.6	90%
			12%	36.0	86%

Table 6：Under different master batch additive amounts, HDPE films, ldpe film, the Cost comparisons of PP sheet materials

Master batch additive amount	HDPE	LDPE	PP sheet materials	Totle drilling cost yuan/ton
					0%	100%			12000
3%	97%			11563
					6%	94%			10950
9%	91%			10358
					12%	88%			9873
0%		100%		12800
					3%		97%		12085
6%		94%		11587
					9%		91%		10983
12%		88%		9984
					0%			100%	10800
3%			97%	10248
					6%			94%	9843
9%			91%	9504
					12%			88%	9258

The above specific embodiments are only exemplary, is to preferably make skilled artisans appreciate that originally Patent, be not to be construed as include to this patent range limitation；As long as appointing according to made by spirit disclosed in this patent How with change or modification, the range that this patent includes is each fallen within.

Claims

1. a kind of preparation method of plastic modifier, which is characterized in that include the following steps：

S1, the grain size and moisture content for measuring inorganic particle；

S3, the inorganic particle in S2 is added in high-speed stirred bucket, heating systems temperature stirs 7 points to 100 DEG C -105 DEG C Clock；

S4, active constituent is sprayed into S3 while stirring, the mass ratio of active constituent and inorganic particle is 0.7:100, when spray Between be 10-15 minutes；

S5, it is cooled to room temperature, material is discharged；

Wherein, the inorganic particle is nano barium sulfate or nano-calcium carbonate, and the active constituent is stearates table Face activating agent or titanate ester surfactant.

2. master batch obtained based on the plastic modifier powder obtained with method of claim 1, which is characterized in that including： The plastic modifier powder of 75%-80%, the vector resin of 12%-18%, the dispersant of 3%-4%, coupling agent 0.5%-3%, thermostabilization Agent 0.1%-1%, antioxidant 0.05%-2%.

3. master batch as claimed in claim 2, which is characterized in that the vector resin is linear polyethylene, the poly- second of metallocene One or more of alkene, polyethylene elastomer；The dispersant is polyethylene wax, ethylene/methyl acrylate copolymer, second The one or more of alkene/ethyl acrylate copolymer；The coupling agent is titanate coupling agent or silane coupling agent；Described Heat stabilizer is calcium stearate or zinc stearate；The antioxidant is 1010 or 168.

4. the method for preparing the master batch described in claim 2, which is characterized in that include the following steps：

A1, mass percent according to claim 2 weigh each material；

A2, plastic modifier powder is placed in A barrels, vector resin is placed in B barrels, dispersant, coupling agent, heat stabilizer and anti- Oxygen agent is placed in C barrels；

A3, flow control valve is opened, the material in A barrels, B barrels and C barrels is added to high-speed stirred bucket simultaneously, is controlled by computer A barrels of flow is 520-560kg/h, and B barrels of flow is 130-160kg/h, and C barrels of flow is 70-80kg/h, and stirring is anti- It answers；

5. the as claimed in claim 4 method for preparing master batch, which is characterized in that the reaction temperature in the step A3 is 80-120 DEG C, reaction time 0.5-1h.

6. the method as claimed in claim 4 for preparing master batch, which is characterized in that the Granulation Equipments is that computer swears metering Twin-screw Dual inoculation.